CN102856351B - Organic electroluminescent display panel and manufacturing method thereof - Google Patents
Organic electroluminescent display panel and manufacturing method thereof Download PDFInfo
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Abstract
An organic electroluminescent display panel comprises a substrate, an anti-reflection layer with a multilayer structure, a plurality of color filter patterns, a pixel array, a plurality of organic electroluminescent patterns and a second electrode. The anti-reflection layer with a multilayer structure is arranged on the substrate, and the reflection layer with the multilayer structure is provided with a plurality of openings. The color filter pattern is disposed in the opening. The pixel array is configured on the anti-reflection layer of the multilayer structure and the color filter pattern. The pixel array comprises a plurality of first electrodes which are arranged in an array. The organic electroluminescent pattern is disposed on the first electrode, and the second electrode is disposed on the organic electroluminescent pattern. The organic electroluminescent display panel of the invention is provided with a color filter for filtering the ambient light, and a multi-layer anti-reflection layer for reducing the reflection of the ambient light on the organic electroluminescent display panel, thereby improving the contrast of the display panel.
Description
Technical field
The invention relates to a kind of display floater and manufacture method thereof, and relate to a kind of organic electric-excitation luminescent displaying panel and manufacture method thereof especially.
Background technology
Information communication industry has become main flow industry now, and due to display floater be the communication interface between people and information, therefore its development seems particular importance.In the display floater of all multiple types, organic electric-excitation luminescent (organic electroluminescent) display floater has multinomial characteristic and advantage, as fast in self-luminous, wide viewing angle, reaction time, low operating voltage, can low-temperature operation and high-photoelectric transformation efficiency etc., make it generally be contemplated to the main flow of next display floater from generation to generation.
Organic electric-excitation luminescent displaying panel, according to the direction of its bright dipping, can be divided into upwards lighting kenel organic electric-excitation luminescent displaying panel and downward lighting kenel organic electric-excitation luminescent displaying panel.
Fig. 1 is the part sectioned view of the organic electric-excitation luminescent displaying panel of existing upwards lighting kenel, and Fig. 2 is the part sectioned view of the organic electric-excitation luminescent displaying panel of known downward lighting kenel.Please refer to Fig. 1, upwards the organic electric-excitation luminescent displaying panel 100 of lighting kenel comprises first substrate 110, pixel 120, pixel defining layer 130, luminescent layer 140, transparent cathode 150 and colored filter 160.Pixel 120 is configured on first substrate 110, and pixel 120 comprises reflective pixel electrodes 121 and a switch element 122.Pixel defining layer 130 to be configured in pixel 120 and to have an opening 130a, and luminescent layer 140 is inserted in this opening 130a.Transparent cathode 150 is configured in pixel defining layer 130 with on luminescent layer 140.Colored filter 160 is positioned on transparent cathode 150, and colored filter comprises second substrate 161, colored filter film 162 and black matrix 163.Wherein, the opening 130a of colored filter film 162 substantial alignment (substantially aligned with) pixel defining layer 130.
In the organic electric-excitation luminescent displaying panel 100 of upwards lighting kenel, the some light L that luminescent layer 140 sends can directly through transparent cathode 150, and the light L of another part then can be reflected again through transparent electrode layer 150 by reflective pixel electrodes 121.In other words, the light L through transparent cathode 150 can through colored filter 160.Therefore, in the organic electric-excitation luminescent displaying panel 100 of upwards lighting kenel, the black matrix 163 in colored filter 160 can be utilized to reduce the reflection of surround lighting (ambient light), and improve the color saturation (Color Saturation) of display floater by colored filter film 162.
Please refer to Fig. 2, the organic electric-excitation luminescent displaying panel 200 of downward lighting kenel comprises substrate 210, pixel 220, transparent pixels electrode 221, switch element 222, pixel defining layer 230, luminescent layer 240 and reflective negative electrode 250.Pixel 220 configures over the substrate 210, and pixel 220 comprises switch element 222 and a transparent pixels electrode 221.Pixel defining layer 230 to be configured in pixel 220 and to have an opening 230a, and luminescent layer 240 is inserted in this opening 230a.Reflective negative electrode 250 is configured in pixel defining layer 230 with on luminescent layer 240.In the organic electric-excitation luminescent displaying panel 200 of downward lighting kenel, the some light L that luminescent layer 240 sends can directly through transparent pixels electrode 221, and the light L of another part then can be reflected again through transparent pixels electrode 221 by reflective negative electrode 250.In other words, the light L through transparent pixels electrode 221 can pass substrate 210.
If wish through colored filter film 162 to improve the color saturation of the organic electric-excitation luminescent displaying panel 200 of downward lighting kenel further, colored filter film can be formed on the outer surface of substrate 210, or before pixel 220 is formed, colored filter film is produced on the inner surface of substrate 210.If form colored filter film on the outer surface of substrate 210, due between luminescent layer 240 and colored filter film across substrate 210, therefore the some light L that luminescent layer 240 sends directly can not be observed by user through colored filter film, and then makes user have the restriction at visual angle when viewing and admiring display frame.If colored filter film is produced on the inner surface of substrate 210, then needed first to make black matrix before making pixel 220.But the material of black matrix is based on resin now, its heat resisting temperature is not sufficient to high temperature when bearing follow-up making pixel 220.Therefore, in the organic electric-excitation luminescent displaying panel of downward lighting kenel, make colored filter, have its degree of difficulty to exist in fact.
Summary of the invention
The invention provides a kind of organic electric-excitation luminescent displaying panel and manufacture method thereof, this organic electric-excitation luminescent displaying panel can by anti-reflecting layer and color filter sheet integrated below pel array.
The present invention proposes a kind of organic electric-excitation luminescent displaying panel, comprises a substrate, the anti-reflecting layer of a sandwich construction, multiple color filter patterns, a pel array, multiple organic electric-excitation luminescent pattern and the second electrode.The anti-reflecting layer of sandwich construction is configured on substrate, and the reflector of this sandwich construction has multiple opening.Multiple color filter patterns is configured in these openings.Pixel array configuration is on the anti-reflecting layer and color filter patterns of sandwich construction.Wherein, pel array comprises multiple the first electrode in arrayed.Multiple organic electric-excitation luminescent pattern arrangement is on the first electrode, and the second electrode is configured on organic electric-excitation luminescent pattern.
In one embodiment of this invention, the anti-reflecting layer of the sandwich construction of above-mentioned organic electric-excitation luminescent displaying panel comprises a first metal layer, a phase deviation layer and the second metal level.The first metal layer is configured on substrate, and phase deviation layer is between the first metal layer and the second metal level.
In one embodiment of this invention, the anti-reflecting layer of the sandwich construction of above-mentioned organic electric-excitation luminescent displaying panel comprises a metal level, one first dielectric layer and one second dielectric layer.Metal level is configured on substrate, and the first dielectric layer is between metal level and the second dielectric layer.
In one embodiment of this invention, the opening in the reflector of the sandwich construction of above-mentioned organic electric-excitation luminescent displaying panel comprises multiple first opening, multiple second opening and multiple 3rd opening.Color filter patterns comprises multiple first color filter patterns, multiple second color filter patterns and multiple 3rd color filter patterns.Each first color filter patterns is inserted in one of them first opening respectively, and each second color filter patterns is inserted in one of them second opening respectively, and each 3rd color filter patterns is inserted in one of them the 3rd opening respectively.
In one embodiment of this invention, the first color filter patterns of the color filter patterns of above-mentioned organic electric-excitation luminescent displaying panel is red filter pattern, and the second color filter patterns is green filter pattern, and the 3rd color filter patterns is blue filter pattern.And each first opening in the reflector of sandwich construction is less than the size of each second opening, the size of each second opening is less than the size of each 3rd opening.
In one embodiment of this invention, the organic electric-excitation luminescent pattern of above-mentioned organic electric-excitation luminescent displaying panel comprises multiple red organic electric-excitation luminescent pattern, multiple green organic electric-excitation luminescent pattern and multiple blue organic exciting light pattern.Red organic electric-excitation luminescent pattern corresponds to red filter pattern arrangement, and green organic electric-excitation luminescent pattern corresponds to green filter pattern arrangement, and blue organic exciting light pattern corresponds to blue filter pattern arrangement.
In one embodiment of this invention, the pel array of above-mentioned organic electric-excitation luminescent displaying panel more comprises multi-strip scanning line, a plurality of data lines, multiple switching transistor, multiple driving transistors and a capacitor.One grid of each switching transistor is electrically connected with corresponding scan line respectively, and the one source pole of each switching transistor is electrically connected with corresponding data wire respectively.One grid of each driving transistors drains with one of corresponding switching transistor respectively and is electrically connected, and a drain electrode of each driving transistors is electrically connected with the first corresponding electrode respectively, and the one source pole of each driving transistors is coupled to a voltage source.One capacitor is electrically coupled between the drain electrode of the corresponding source electrode of driving transistors and the switching transistor of correspondence.
In one embodiment of this invention, the anti-reflecting layer of the sandwich construction of above-mentioned organic electric-excitation luminescent displaying panel has at least one deck metal level, and the source electrode of each switching transistor and at least one deck metal level are electrically connected.
In one embodiment of this invention, above-mentioned organic electric-excitation luminescent displaying panel more comprises one and is covered in insulating barrier on the anti-reflecting layer of sandwich construction, and wherein insulating barrier is between the anti-reflecting layer and pel array of sandwich construction.
The present invention proposes a kind of manufacture method of organic electric-excitation luminescent displaying panel, and the flow process of this manufacture method is as follows.First on a substrate, form the anti-reflecting layer of a sandwich construction, the anti-reflecting layer of this sandwich construction has multiple opening.Then, in aforementioned multiple opening, multiple color filter patterns is formed.Afterwards, the anti-reflecting layer and color filter patterns of sandwich construction form a pel array, wherein, pel array comprises multiple the first electrode in arrayed.Then, multiple organic electric-excitation luminescent pattern is formed on the first electrode.Afterwards, organic electric-excitation luminescent pattern forms one second electrode.
In one embodiment of this invention, in the manufacture method of above-mentioned organic electric-excitation luminescent displaying panel, the method wherein forming the anti-reflecting layer of sandwich construction comprises, a first metal layer is formed on substrate, on the first metal layer, form a phase deviation layer again, then on phase deviation layer, form one second metal level.
In one embodiment of this invention, in the manufacture method of above-mentioned organic electric-excitation luminescent displaying panel, the method wherein forming the anti-reflecting layer of sandwich construction comprises, and forms a metal level on substrate; On metal level, form one first dielectric layer again, then on the first dielectric layer, form one second dielectric layer.
In one embodiment of this invention, in the manufacture method of above-mentioned organic electric-excitation luminescent displaying panel, wherein multiple opening comprises multiple first opening, multiple second opening and multiple 3rd opening.And the method forming color filter patterns comprises: form multiple first color filter patterns, multiple second color filter patterns and multiple 3rd color filter patterns, wherein each first color filter patterns is inserted in one of them first opening respectively, each second color filter patterns is inserted in one of them second opening respectively, and each 3rd color filter patterns is inserted in one of them the 3rd opening respectively.
In one embodiment of this invention, in the manufacture method of above-mentioned organic electric-excitation luminescent displaying panel, wherein the first color filter patterns of color filter patterns is red filter pattern, and the second color filter patterns is green filter pattern, and the 3rd color filter patterns is blue filter pattern.And each first opening in the reflector of sandwich construction is less than the size of each second opening, the size of each second opening is less than the size of each 3rd opening.
In one embodiment of this invention, in the manufacture method of above-mentioned organic electric-excitation luminescent displaying panel, the method being wherein formed with electroluminescent pattern comprises:
Form multiple red organic electric-excitation luminescent pattern, multiple green organic electric-excitation luminescent pattern and multiple blue organic exciting light pattern.Wherein red organic electric-excitation luminescent pattern corresponds to red filter pattern arrangement, and green organic electric-excitation luminescent pattern corresponds to green filter pattern arrangement, and blue organic exciting light pattern corresponds to blue filter pattern arrangement.
In one embodiment of this invention, in the manufacture method of above-mentioned organic electric-excitation luminescent displaying panel, the method wherein forming pel array more comprises: form multi-strip scanning line, form a plurality of data lines and form multiple switching transistor.Wherein a grid of each switching transistor is electrically connected with corresponding scan line respectively, and the one source pole of each switching transistor is electrically connected with corresponding data wire respectively.The method forming pel array more comprises, form multiple driving transistors, wherein a grid of each driving transistors drains with one of corresponding switching transistor respectively and is electrically connected, one drain electrode of each driving transistors is electrically connected with the first corresponding electrode respectively, and the one source pole of each driving transistors is coupled to a voltage source.And form a capacitor, wherein capacitor is electrically coupled between the drain electrode of the corresponding source electrode of driving transistors and the switching transistor of correspondence.
In one embodiment of this invention, in the manufacture method of above-mentioned organic electric-excitation luminescent displaying panel, wherein the anti-reflecting layer of sandwich construction has at least one deck metal level, and the source electrode of each switching transistor and at least one deck metal level are electrically connected.
In one embodiment of this invention, the manufacture method of above-mentioned organic electric-excitation luminescent displaying panel more comprises: form an insulating barrier to be covered on the anti-reflecting layer of sandwich construction, wherein insulating barrier is between the anti-reflecting layer and pel array of sandwich construction.
Based on above-mentioned, organic electric-excitation luminescent displaying panel of the present invention has colored filter to filter surround lighting, and reduces the reflection of surround lighting on organic electric-excitation luminescent displaying panel with the anti-reflecting layer of sandwich construction, improves the contrast of display floater by this.
Accompanying drawing explanation
Fig. 1 is the part sectioned view of the organic electric-excitation luminescent displaying panel of existing upwards lighting kenel.
Fig. 2 is the part sectioned view of the organic electric-excitation luminescent displaying panel of existing downward lighting kenel.
Fig. 3 is the drive circuit figure of the organic electric-excitation luminescent displaying panel of the first embodiment of the present invention.
Fig. 4 A to Fig. 4 D is the Making programme figure of the organic electric-excitation luminescent displaying panel of the first embodiment of the present invention.
Fig. 5 A is the anti-reflecting layer of the sandwich construction of Fig. 4 D.
Fig. 5 B is the anti-reflecting layer of the sandwich construction of another embodiment of the present invention.
Fig. 6 is the local upper schematic diagram of the organic electric-excitation luminescent displaying panel of Fig. 4 D.
Fig. 7 is the part sectioned view of the organic electric-excitation luminescent displaying panel of another embodiment of the present invention.
Element wherein, Reference numeral:
100: the upwards organic electric-excitation luminescent displaying panel of lighting kenel
110: first substrate
120: pixel
121: reflective pixel electrodes
122: switch element
130: pixel defining layer
130a: opening
140: luminescent layer
150: transparent cathode
160: colored filter
161: second substrate
162: colored filter film
163: black matrix
200: the organic electric-excitation luminescent displaying panel of lighting kenel downwards
210: substrate
220: pixel
221: transparent pixels electrode
222: switch element
230: pixel defining layer
230a: opening
240: luminescent layer
250: reflective negative electrode
300: organic electric-excitation luminescent displaying panel
310: substrate
420,320: the anti-reflecting layer of sandwich construction
320a: the first metal layer
320b: phase deviation layer
320c: the second metal level
320d; Insulating barrier
321: opening
321a: the first opening
321b: the second opening
321c: the three opening
330: pel array
331: the first electrodes
332: channel layer
3321,3322: contact zone
333: gate insulator
334: dielectric layer
335: the first protective layers
336: the second protective layers
340: color filter patterns
341: the first color filter patterns, red filter pattern
342: the second color filter patterns, green filter pattern
343: the three color filter patterns, blue filter pattern
350: organic electric-excitation luminescent pattern
351: red organic electric-excitation luminescent pattern
352: green organic electric-excitation luminescent pattern
353: blue organic exciting light pattern
360: the second electrodes
420b: the first dielectric layer
420c: the second dielectric layer
500: organic electric-excitation luminescent displaying panel
420a, 510: metal level
MP1: driving transistors
MP2: switching transistor
L: light
G: grid
S: source electrode
D: drain electrode
C: capacitor
R: surround lighting
Idrive: drive current
R1, R2, R3, R4: reverberation
OEL: organic electro-luminescence display unit
SL: scan line
DL: data wire
Embodiment
Fig. 3 is the drive circuit figure of the organic electric-excitation luminescent displaying panel of the first embodiment of the present invention.Please refer to Fig. 3, the drive circuit of the present embodiment is such as the drive circuit of 2T1C framework.Specifically, the drive circuit of the present embodiment comprises driving transistors MP1, switching transistor MP2 and capacitor C, the grid G of switching transistor MP2 is electrically connected with corresponding scan line SL respectively, and the source S of switching transistor MP2 is electrically connected with corresponding data wire DL respectively.The grid G of driving transistors MP1 is electrically connected with the drain D of corresponding switching transistor MP2 respectively, and the drain D of driving transistors MP1 is electrically connected with the anode of corresponding organic electro-luminescence display unit OEL respectively.The source S of each driving transistors MP1 is coupled to voltage source OVdd.Capacitor C is electrically coupled between the drain D of the corresponding source S of driving transistors MP1 and the switching transistor MP2 of correspondence.In addition, the negative electrode of organic electro-luminescence display unit OEL is then coupled to another voltage OVss.In the present embodiment, the voltage level of voltage source OVdd is higher than the voltage level of voltage OVss.
When switching transistor MP2 is unlocked, the data voltage transmitted via data wire DL can put in the grid G of driving transistors MP1.When switching transistor MP2 is closed, the data voltage put in the grid G of driving transistors MP1 can maintain by capacitor C.The data voltage put in the grid G of driving transistors MP1 can determine the opening degree of driving transistors MP1, and then control flow check is through the drive current Idrive of organic electro-luminescence display unit OEL.
It should be noted that the present invention does not limit transistor in drive circuit, the quantity of electric capacity and coupling mode, designer can change transistor in drive circuit, the quantity of electric capacity and coupling mode according to practical application request.
Fig. 4 A to Fig. 4 D is the Making programme figure of the organic electric-excitation luminescent displaying panel of the first embodiment of the present invention.The Making programme of the organic electric-excitation luminescent displaying panel of the first embodiment of the present invention mainly comprises the following steps, on a substrate, first form the anti-reflecting layer of a sandwich construction, and the anti-reflecting layer of this sandwich construction has multiple opening.Then, in aforementioned multiple opening, multiple color filter patterns is formed.Afterwards, the anti-reflecting layer and color filter patterns of sandwich construction form a pel array, wherein, pel array comprises multiple the first electrode in arrayed.Then, multiple organic electric-excitation luminescent pattern is formed on the first electrode.Afterwards, organic electric-excitation luminescent pattern forms one second electrode.Below collocation Fig. 4 A to Fig. 4 D is described in detail the Making programme figure of the organic electric-excitation luminescent displaying panel of the first embodiment of the present invention.
Please refer to Fig. 4 A, first a substrate 310 is provided, on substrate 310, then make the anti-reflecting layer 320 of sandwich construction, when making the anti-reflecting layer 320 of sandwich construction, in anti-reflecting layer 320, can only show three in reserved multiple opening 321(Fig. 4 A).In the present embodiment, substrate 310 can be made by the material of glass, quartz or other tool light transmission.
In the present embodiment, the anti-reflecting layer 320 of sandwich construction comprises a first metal layer 320a, a phase deviation layer 320b and one second metal level 320c.The first metal layer 320a is configured on substrate 310.Phase deviation layer 320b is between the first metal layer 320a and the second metal level 320c.The material of the first metal layer 320a and the second metal level 320c can be silver (Ag), aluminium (Al) or molybdenum (Mo), the material of phase deviation layer 320b can be indium tin oxide (Indium-Tin Oxide, ITO), other transparent electric conducting material or other dielectric material, but the present invention is not as limit.In the present embodiment, after having made the anti-reflecting layer 320 of sandwich construction, then can make a layer insulating 320d again on the anti-reflecting layer 320 of sandwich construction.
Afterwards, as Fig. 4 B illustrate, insulating barrier 320d makes pel array 330.Generally speaking, pel array 330 comprises scan line, data wire and pixel, and wherein pixel system is electrically connected with corresponding scan line and corresponding data wire, and pixel comprises transistor and the first electrode (not illustrating).For example, aforesaid transistor comprises channel layer 332, gate insulator 333, grid G, dielectric layer 334, source S and drain D.In addition, the present embodiment optionally can make the first protective layer 335 and the second protective layer 336 on transistor.
For the structure illustrated in Fig. 4 B, first on insulating barrier 320d, channel layer 332 is produced, the material of channel layer 332 can be polysilicon or other similar material, channel layer 332 can impose heavy doping with the contact zone 3321 and 3322 of source S or drain D, and can according to the type selecting doped p type dopant material of channel layer material or N-shaped dopant material.Then, channel layer 332 covers one deck gate insulator 333, on gate insulator 333, form grid G subsequently.Gate insulator 333 by inorganic material (such as silica, silicon nitride or silicon oxynitride), organic material or can be made by the stack layer comprising insulating material and other insulating material.
Then, in order to protect grid G, a dielectric layer 334 can be formed above grid G.Subsequently and form source S and drain D on this dielectric layer 334.Source S and drain D can be electrically connected with channel layer 332.Finally, the present embodiment optionally can form the first protective layer 335 and the second protective layer 336 on dielectric layer 334.But the material organic material such as polyester (polyester) of the first protective layer 335 and the second protective layer 336, polyethylene (polyethylene), cycloolefin (cycloolefin), polyimides (polyimide), polyamide (polyamide), polyalcohols (polyalcohols), polyphenyl (polyphenylene), polyethers (polyether), polyketone (polyketone) or other be applicable to material and combination thereof or be made by the stack layer comprising insulating material and other insulating material.
Please refer to Fig. 4 C, color filter patterns 340 is made in multiple openings 321 of the anti-reflecting layer 320 of sandwich construction.In the present embodiment, opening 321 comprise in multiple first opening 321a(Fig. 4 C only show one), only show one in multiple second opening 321b(Fig. 4 C) and multiple 3rd opening 321c(Fig. 4 C in only show one), and color filter patterns 340 comprises multiple first color filter patterns 341, multiple second color filter patterns 342 and multiple 3rd color filter patterns 343.
In figure 4 c, first color filter patterns 341 is inserted in one of them first opening 321a respectively, second color filter patterns 342 is inserted in one of them second opening 321b respectively, and the 3rd color filter patterns 343 is inserted in one of them the 3rd opening 321c respectively.
Insert color filter patterns 340 in each opening 321 after, then can make the drain D that the first electrode 331, first electrode 331 connects transistor in color filter patterns 340.The material of the first electrode 331 can be indium tin oxide (Indium-Tin Oxide, ITO) or indium-zinc oxide (Indium-ZincOxide, IZO) or other transparent conductive material.
Please then refer to Fig. 4 D, on the first electrode 331, be formed with electroluminescent pattern 350.In the present embodiment, the material of organic electric-excitation luminescent pattern 350 is Alq3, Almq3, Bebq2 or other suitable luminous organic material.Organic electric-excitation luminescent pattern 350 can be formed on the first electrode 331 by evaporation or other film-plating process.After the making completing organic electric-excitation luminescent pattern 350, form one second electrode 360 to be covered on organic electric-excitation luminescent pattern 350.In the present embodiment, the material of the second electrode 360 can be metal, and metal is such as silver, aluminium, magnesium or its alloy.Second electrode 360 can mat evaporation, sputter or other vapour deposition process deposition.But the present embodiment does not limit material and its production method of the second electrode 360.
The second electrode 360 make complete after, just tentatively complete the making of organic electric-excitation luminescent displaying panel 300.Below will arrange in pairs or groups Fig. 4 D, and the film layer structure for organic electric-excitation luminescent displaying panel 300 is described in detail.
As shown in Figure 4 D, the organic electric-excitation luminescent displaying panel 300 of the present embodiment comprises the anti-reflecting layer 320 of substrate 310, sandwich construction, multiple color filter patterns 340, pel array 330, multiple organic electric-excitation luminescent pattern 350 and the second electrode 360.The anti-reflecting layer 320 of sandwich construction is configured on substrate 310, and the reflector of this sandwich construction has multiple opening 321.Color filter patterns 340 is configured in these openings 321.In the anti-reflecting layer 320 that pel array 330 is configured at sandwich construction and color filter patterns 340.Pel array 330 comprises multiple the first electrode 331 in arrayed.In addition, multiple organic electric-excitation luminescent pattern 350 is configured on each first electrode 331, and the second electrode 360 is configured on organic electric-excitation luminescent pattern 350.One insulating barrier 320d is configured on the anti-reflecting layer 320 of sandwich construction, so that channel layer 332 and the second metal level 320c below insulating barrier 320d are done electrical isolation.In addition, the first electrode 331 of transparent material, can make organic electric-excitation luminescent pattern 350 when by current drives, and the light launched can appear through the first electrode 331 thus.
Fig. 5 A is the anti-reflecting layer 320 of the sandwich construction of Fig. 4 D.Please refer to Fig. 5 A.When surround lighting R is irradiated to anti-reflecting layer 320, reverberation can be divided into the R1 reflected by the first metal layer 320a, with R2 two parts reflected by the second metal level 320c.The reflectivity of each metal level and penetrance are determined by the thickness of each metal level.The phase difference of R1 and R2 then determined by the thickness of phase deviation layer 320b and refractive index.Therefore, the thickness and the refractive index that suitably adjust phase deviation layer 320b can make the phase difference of R1 and R2 be just in time 180 degree.Can there is destruction interference in reverberation R1 and R2 like this, cancel each other, therefore can eliminate the reflection of surround lighting R on organic electric-excitation luminescent displaying panel 300, and improve the contrast of organic electric-excitation luminescent displaying panel 300.
Fig. 5 B is the anti-reflecting layer of the sandwich construction of another embodiment of the present invention.The anti-reflecting layer 320 of sandwich construction is not limit and is made up of aforementioned the first metal layer 322, phase deviation layer 320b and one second metal level 320c.As Fig. 5 B illustrate, in another embodiment, the anti-reflecting layer 420 of sandwich construction comprises a metal level 420a, one first dielectric layer 420b and one second dielectric layer 420c.Metal level 420a is configured on substrate 310.First dielectric layer 420b is between metal level 420a and the second dielectric layer 420c.The material of metal level 420a can be such as molybdenum (Mo), and the material of the first dielectric layer 420b can be such as silicon nitride (SiNx), and the material of the second dielectric layer 420c can be such as amorphous silicon material (amorphous Si), but the present invention is not as limit.
Hold above-mentioned, when surround lighting R is irradiated to anti-reflecting layer 420, reverberation can be divided into the R3 reflected by metal level 420a, with R4 two parts reflected by the second dielectric layer 420c.The reflectivity of each layer and penetrance are determined by the thickness of each layer.The phase difference of R3 and R4 then determined by the thickness of the first dielectric layer 420b and refractive index.Therefore, the thickness and the refractive index that suitably adjust the first dielectric layer 420b can make the phase difference of R3 and R4 be just in time 180 degree.Can there is destruction interference in reverberation R3 and R4 like this, cancel each other.
Fig. 6 is the local upper schematic diagram of the organic electric-excitation luminescent displaying panel 300 of Fig. 4 D.Please refer to Fig. 6.In the present embodiment, the first color filter patterns 341 is red filter pattern, and the second color filter patterns 342 is green filter pattern, and the 3rd color filter patterns 343 is blue filter pattern.And as Fig. 6 illustrate, each first opening 321a is less than the size of each second opening 321b, and the size of each second opening 321b is less than the size of each 3rd opening 321c.
Referring to Fig. 4 D and Fig. 6, the organic electric-excitation luminescent pattern 350 of the present embodiment comprises multiple red organic electric-excitation luminescent pattern 351, multiple green organic electric-excitation luminescent pattern 352 and multiple blue organic exciting light pattern 353.Each red organic electric-excitation luminescent pattern 351 can correspond respectively to one of them of multiple red filter pattern 341 and configure, each green organic electric-excitation luminescent pattern 352 corresponds to one of them of multiple green filter pattern 342 and configures, and each blue organic exciting light pattern 353 corresponds to one of them of multiple blue filter pattern 343 and configures.Therefore, when red organic electric-excitation luminescent pattern 351, green organic electric-excitation luminescent pattern 352, blue organic exciting light pattern 353 send ruddiness, green glow, blue light by current drives, ruddiness, green glow, blue light are each passed through corresponding red filter pattern 341, green filter pattern 342, blue filter pattern 343 improve to make the color saturation of ruddiness, green glow, blue light.
Because the organic electric-excitation luminescent pattern 350 being suitable for sending different color light has different life time decay (lifetime decay) speed, in order to make the life time decay speed trend of the organic electric-excitation luminescent pattern 350 being suitable for sending different color light consistent, the present embodiment is reached through the size changing drive current and adjustment opening 321.For example, if drive red organic electric-excitation luminescent pattern 351, green organic electric-excitation luminescent pattern 352 and blue organic exciting light pattern 353 with identical drive current, the life time decay speed of blue organic exciting light pattern 353 can higher than the life time decay speed of red organic electric-excitation luminescent pattern 351 and green organic electric-excitation luminescent pattern 352, and the life time decay speed of green organic electric-excitation luminescent pattern 352 can higher than the life time decay speed of red organic electric-excitation luminescent pattern 351.Now, to make the life time decay speed trend of red organic electric-excitation luminescent pattern 351, green organic electric-excitation luminescent pattern 352 and blue organic exciting light pattern 353 consistent, must make driving the drive current of blue organic exciting light pattern 353 lower than the drive current in order to drive red organic electric-excitation luminescent pattern 351, green organic electric-excitation luminescent pattern 352, and order is in order to drive the drive current of green organic electric-excitation luminescent pattern 352 lower than the drive current in order to drive red organic electric-excitation luminescent pattern 351.But this measure is by different for the intensity (intensity) causing ruddiness, green glow from blue light, therefore the present embodiment controls the intensity of ruddiness, green glow and blue light through the size Control of the first opening 321a, the second opening 321b and the 3rd opening 321c.
In addition, organic electric-excitation luminescent displaying panel mainly can be made up of four parts for the reflection of surround lighting, is respectively the reflection of the reflection of the anti-reflecting layer of sandwich construction and the first color filter patterns, the second color filter patterns, the 3rd color filter patterns.As aforementioned, surround lighting can make reflectivity close to zero by the thickness of each metal level of adjustment at the reflectivity of the anti-reflecting layer of sandwich construction.In the present embodiment, the reflectivity of the first color filter patterns 341, second color filter patterns 342, the 3rd color filter patterns 343 is such as respectively 20%, 50%, 10%, and the first opening 321a, the second opening 321b and the 3rd opening 321c size are respectively 10%, 20%, 30%.Therefore, the overall reflectivity of organic electric-excitation luminescent displaying panel is about (20% × 10%+50% × 20%+10% × 30%)/3=5%.Therefore, organic electric-excitation luminescent displaying panel of the present invention can eliminate the reflection of most surround lighting effectively, and then improves its contrast.
Fig. 7 is the part sectioned view of the organic electric-excitation luminescent displaying panel of another embodiment of the present invention.Please refer to Fig. 7, the organic electric-excitation luminescent displaying panel 500 of the present embodiment and the first embodiment similar, only the two Main Differences be in: the metal level 510 of the anti-reflecting layer 320 of sandwich construction is be electrically connected with the source S of switching transistor.In the present embodiment, metal level 510 is electrically connected pressure drop (IR drop) phenomenon that can slow down voltage source OVdd with the source S of switching transistor.In addition, if the metal level 510 of the anti-reflecting layer 320 of sandwich construction is connected to voltage source OVdd(there is fixed voltage position standard), metal level 510 has screen effect.
In sum, organic electric-excitation luminescent displaying panel of the present invention is included in the colored filter below pel array.This colored filter comprises the anti-reflecting layer of a sandwich construction.Each color filter patterns in colored filter can filter surround lighting, and the anti-reflecting layer of sandwich construction can reduce the reflection of surround lighting on organic electric-excitation luminescent displaying panel, allows organic electric-excitation luminescent displaying panel present good display frame.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art can make various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection range that all should belong to the claims in the present invention.
Claims (16)
1. an organic electric-excitation luminescent displaying panel, is characterized in that, comprising:
One substrate;
The anti-reflecting layer of one sandwich construction, is configured on this substrate, and the anti-reflecting layer of this sandwich construction has multiple opening;
One insulating barrier, is covered on the anti-reflecting layer of this sandwich construction;
Multiple color filter patterns, is configured in those openings;
One pel array, in the anti-reflecting layer being configured at this sandwich construction and those color filter patterns, wherein this pel array comprises multiple the first electrode in arrayed; This insulating barrier is between the anti-reflecting layer and this pel array of this sandwich construction;
Multiple organic electric-excitation luminescent pattern, is configured on those first electrodes; And
One second electrode, is configured on those organic electric-excitation luminescent patterns;
Wherein, the anti-reflecting layer of this sandwich construction and color filter patterns are integrated in below pel array.
2. organic electric-excitation luminescent displaying panel according to claim 1, is characterized in that, the anti-reflecting layer of this sandwich construction comprises:
One the first metal layer, is configured on this substrate;
One phase deviation layer; And
One second metal level, wherein this phase deviation layer is between this first metal layer and this second metal level.
3. organic electric-excitation luminescent displaying panel according to claim 1, is characterized in that, the anti-reflecting layer of this sandwich construction comprises:
One metal level, is configured on this substrate;
One first dielectric layer; And
One second dielectric layer, wherein this first dielectric layer is between this metal level and this second dielectric layer.
4. organic electric-excitation luminescent displaying panel according to claim 1, it is characterized in that, those openings comprise multiple first opening, multiple second opening and multiple 3rd opening, those color filter patterns comprise multiple first color filter patterns, multiple second color filter patterns and multiple 3rd color filter patterns, respectively this first color filter patterns is inserted in one of them first opening respectively, respectively this second color filter patterns is inserted in one of them second opening respectively, and respectively the 3rd color filter patterns is inserted in one of them the 3rd opening respectively.
5. organic electric-excitation luminescent displaying panel according to claim 4, it is characterized in that, those first color filter patterns are red filter pattern, those second color filter patterns are green filter pattern, those the 3rd color filter patterns are blue filter pattern, respectively this first opening is less than the size of respectively this second opening, and respectively the size of this second opening is less than the size of respectively the 3rd opening.
6. organic electric-excitation luminescent displaying panel according to claim 5, it is characterized in that, those organic electric-excitation luminescent patterns comprise multiple red organic electric-excitation luminescent pattern, multiple green organic electric-excitation luminescent pattern and multiple blue organic exciting light pattern, those red organic electric-excitation luminescent patterns correspond to those red filter pattern arrangement, those green organic electric-excitation luminescent patterns correspond to those green filter pattern arrangement, and those blue organic exciting light patterns correspond to those blue filter pattern arrangement.
7. organic electric-excitation luminescent displaying panel according to claim 1, is characterized in that, this pel array more comprises:
Multi-strip scanning line;
A plurality of data lines;
Multiple switching transistor, respectively a grid of this switching transistor is electrically connected with corresponding scan line respectively, and respectively the one source pole of this switching transistor is electrically connected with corresponding data wire respectively;
Multiple driving transistors, respectively a grid of this driving transistors drains with one of corresponding switching transistor respectively and is electrically connected, respectively a drain electrode of this driving transistors is electrically connected with the first corresponding electrode respectively, and respectively the one source pole of this driving transistors is coupled to a voltage source; And
One capacitor, is electrically coupled between the source electrode of driving transistors of correspondence and the drain electrode of the switching transistor of correspondence.
8. organic electric-excitation luminescent displaying panel according to claim 7, is characterized in that, the anti-reflecting layer of this sandwich construction has at least one deck metal level, and respectively the source electrode of this switching transistor and this at least one deck metal level be electrically connected.
9. a manufacture method for organic electric-excitation luminescent displaying panel, is characterized in that, comprising:
On a substrate, form the anti-reflecting layer of a sandwich construction, the anti-reflecting layer of this sandwich construction has multiple opening;
Form an insulating barrier, be covered on the anti-reflecting layer of this sandwich construction;
A pel array is formed on the anti-reflecting layer of this sandwich construction;
Multiple color filter patterns is formed in those openings;
The first electrode is made in the plurality of color filter patterns; Wherein, this pel array comprises multiple the first electrode in arrayed; This insulating barrier is between the anti-reflecting layer and this pel array of this sandwich construction;
Multiple organic electric-excitation luminescent pattern is formed on those first electrodes; And
One second electrode is formed on those organic electric-excitation luminescent patterns;
Wherein, the anti-reflecting layer of this sandwich construction and color filter patterns are integrated in below pel array.
10. the manufacture method of organic electric-excitation luminescent displaying panel according to claim 9, is characterized in that, the method forming the anti-reflecting layer of this sandwich construction comprises:
A first metal layer is formed on this substrate;
A phase deviation layer is formed on this first metal layer; And
Formation one second metal level on this phase deviation layer.
The manufacture method of 11. organic electric-excitation luminescent displaying panels according to claim 9, is characterized in that, the method forming the anti-reflecting layer of this sandwich construction comprises:
A metal level is formed on this substrate;
One first dielectric layer is formed on this metal level; And
One second dielectric layer is formed on this first dielectric layer.
The manufacture method of 12. organic electric-excitation luminescent displaying panels according to claim 9, is characterized in that, those openings comprise multiple first opening, multiple second opening and multiple 3rd opening, and the method forming those color filter patterns comprises:
Form multiple first color filter patterns, multiple second color filter patterns and multiple 3rd color filter patterns, wherein respectively this first color filter patterns is inserted in one of them first opening respectively, respectively this second color filter patterns is inserted in one of them second opening respectively, and respectively the 3rd color filter patterns is inserted in one of them the 3rd opening respectively.
The manufacture method of 13. organic electric-excitation luminescent displaying panels according to claim 12, it is characterized in that, those first color filter patterns are red filter pattern, those second color filter patterns are green filter pattern, and those the 3rd color filter patterns are blue filter pattern, respectively this first opening is less than the size of respectively this second opening, and respectively the size of this second opening is less than the size of respectively the 3rd opening.
The manufacture method of 14. organic electric-excitation luminescent displaying panels according to claim 13, is characterized in that, the method forming those organic electric-excitation luminescent patterns comprises:
Form multiple red organic electric-excitation luminescent pattern, multiple green organic electric-excitation luminescent pattern and multiple blue organic exciting light pattern, wherein those red organic electric-excitation luminescent patterns correspond to those red filter pattern arrangement, those green organic electric-excitation luminescent patterns correspond to those green filter pattern arrangement, and those blue organic exciting light patterns correspond to those blue filter pattern arrangement.
The manufacture method of 15. organic electric-excitation luminescent displaying panels according to claim 9, is characterized in that, the method forming this pel array more comprises:
Form multi-strip scanning line;
Form a plurality of data lines;
Form multiple switching transistor, wherein respectively a grid of this switching transistor is electrically connected with corresponding scan line respectively, and wherein respectively the one source pole of this switching transistor is electrically connected with corresponding data wire respectively;
Form multiple driving transistors, wherein respectively a grid of this driving transistors drains with one of corresponding switching transistor respectively and is electrically connected, respectively a drain electrode of this driving transistors is electrically connected with the first corresponding electrode respectively, and respectively the one source pole of this driving transistors is coupled to a voltage source; And
Form a capacitor, wherein this capacitor is electrically coupled between the drain electrode of the corresponding source electrode of driving transistors and the switching transistor of correspondence.
The manufacture method of 16. organic electric-excitation luminescent displaying panels according to claim 15, is characterized in that, the anti-reflecting layer of this sandwich construction has at least one deck metal level, and respectively the source electrode of this switching transistor and this at least one deck metal level be electrically connected.
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| CN104183608B (en) * | 2014-09-02 | 2017-05-03 | 深圳市华星光电技术有限公司 | TFT backplane structure and manufacturing method thereof |
| CN105140247B (en) * | 2015-10-10 | 2018-02-16 | 京东方科技集团股份有限公司 | Organic LED array substrate, manufacture method and use its display |
| CN111554701B (en) * | 2016-05-20 | 2023-05-16 | 群创光电股份有限公司 | Display apparatus |
| CN106157818B (en) * | 2016-09-05 | 2022-06-24 | 京东方科技集团股份有限公司 | Flexible display panel, manufacturing method thereof and display device |
| CN109817663B (en) * | 2017-11-20 | 2020-12-29 | 上海和辉光电股份有限公司 | Method for adjusting OLED panel and pixel arrangement structure |
| CN109817690B (en) * | 2019-02-21 | 2022-02-08 | 京东方科技集团股份有限公司 | OLED display substrate, preparation method of OLED display substrate and display device |
| CN110048006B (en) * | 2019-04-24 | 2021-06-25 | 上海钥熠电子科技有限公司 | High-efficiency stable light-emitting device and display device comprising same |
| CN111755626A (en) * | 2020-07-06 | 2020-10-09 | 深圳市华星光电半导体显示技术有限公司 | Display panel and display device |
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