CN100424555C - Liquid cfystal display panel and liquid crystal display by using said panel - Google Patents
Liquid cfystal display panel and liquid crystal display by using said panel Download PDFInfo
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- CN100424555C CN100424555C CNB031094120A CN03109412A CN100424555C CN 100424555 C CN100424555 C CN 100424555C CN B031094120 A CNB031094120 A CN B031094120A CN 03109412 A CN03109412 A CN 03109412A CN 100424555 C CN100424555 C CN 100424555C
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- substrate
- liquid crystal
- enhancement film
- polaroid
- bright enhancement
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Abstract
The present invention relates to a liquid crystal display panel and a liquid crystal displayer which uses the liquid crystal panel. The liquid crystal display panel is provided with a first basal plate, a second basal plate, a liquid crystal layer, a light polarizing sheet and a light intensifying film, wherein the second basal plate is positioned on the first basal plate, and the liquid crystal layer is positioned between the first basal plate and the second basal plate. The light polarizing sheet is arranged on the outer surface of the second base plate corresponding to the liquid crystal layer has the direction of a main shaft. The light intensifying film is arranged on the outer surface of the first base plate corresponding to the liquid crystal layer, wherein the light intensifying film has the direction of a main shaft, and the direction of a main shaft of the light intensifying film and the direction of a main shaft of the light polarizing sheet has an included angle. Because the light polarizing sheet which is positioned on the surface of the first base plate corresponding to the liquid crystal layer is replaced with the light intensifying film, brightness can be raised, and cost can be reduced.
Description
Technical field
The invention relates to a kind of LCD (liquid crystal display is called for short LCD), and particularly about a kind of LCD that reduces the display panels of manufacturing cost (cost) and use this kind panel.
Background technology
Along with high-tech development, video product, particularly digitized video or device for image become in general daily life common product.In these digitized videos or the device for image, display is a significant components, to show relevant information.The user can read information by display, or and then the running of control device.
In order to cooperate modern life pattern, it is thin light that the volume of video or device for image day by day is tending towards.Traditional cathode layer ray display, though still have its advantage, it need take large volume and power consumption.Therefore, cooperate photoelectric technology and semiconductor fabrication, the display of panel type has been developed to become common display product, for example LCD at present.LCD is owing to have conventional cathode ray tube (cathode ray tube such as low voltage operating, radiationless line scattering, in light weight and volume be little, be called for short CRT) display of the manufacturing advantage that is beyond one's reach, with other panel display such as plasma display and electroluminescence (electro luminance) display, become the major subjects of display research in recent years, more be regarded as the main flow of 21st century display, and traditional LCD as shown in Figure 1.
Fig. 1 is known a kind of LCD schematic top plan view.Please refer to Fig. 1, usually in general LCD 100, have a display panels 110 and a backlight module (BackLight Module) 120, wherein backlight module 120 is positioned at display panels 110 belows, abundant with supply brightness and be evenly distributed light source makes normally show image of display panels 110.And display panels 110 comprises a upper substrate 102a, an infrabasal plate 102b and a liquid crystal layer 104, and wherein liquid crystal layer 104 is between upper substrate 102a and infrabasal plate 102b.In addition, in display panels 110, also must attach upper and lower polaroid (polarizer) 106a, 106b at upper and lower substrate 102a, the 102b back side, and being staggered direction inserts, its main application is to make light source produce phasic difference when electric field and no electric field are arranged and the state that presents light and shade, in order to demonstration captions or pattern.
Please continue with reference to Fig. 1,120 of the backlight modules in the LCD 100 have a fluorescent tube 122, a light guide plate 124, a reflector plate 126, and wherein fluorescent tube 122 is positioned at light guide plate 124 sides, reflector plate 126 is positioned at light guide plate 124 bottoms.
Yet the light that advances in light guide plate 124 is understood multiple reflection and refraction, and causes the extreme reduction of optical efficiency of light guide plate 124.Therefore, also need bright enhancement film 128 in the backlight module 120 and be disposed on the light guide plate 124, to increase brightness (brightness).Because bright enhancement film 128 can effectively utilize the main optical axis that the polarized light that can't penetrate down polaroid 106b arrives LCD 100, promote brightness, there are not the misgivings of electric energy consume, so be present preferable solution yet.But the bright enhancement film 128 that is increased in the known LCD 100 can cause cost to increase, and increases product thickness.
Summary of the invention
Therefore, the purpose of this invention is to provide a kind of transmission-type liquid crystal display panel and use the transmission type lcd device of this kind panel, to reduce manufacturing cost, simplified manufacturing technique.
Another object of the present invention provides a kind of transmission-type liquid crystal display panel and uses the transmission type lcd device of this kind panel, to reduce product thickness.
According to above-mentioned and other purpose, the present invention proposes a kind of transmission-type liquid crystal display panel, comprises one first substrate, one second substrate, a liquid crystal layer, a polaroid and a bright enhancement film.Wherein, second substrate be on first substrate, a liquid crystal layer is then between first substrate and second substrate.And polaroid is the outside surface that is disposed at second substrate of relative liquid crystal layer, and polaroid has a major axes orientation.Bright enhancement film then is disposed at the outside surface of first substrate of relative liquid crystal layer, and wherein bright enhancement film has a major axes orientation, and the major axes orientation of the major axes orientation of bright enhancement film and polaroid has an angle.
Described according to the embodiment of the invention, above-mentioned bright enhancement film can cooperate the kind of polaroid, such as polaroid is when being circular polarizing disk (circular polarizer), and the polarized light of can arranging in pairs or groups changes brightness enhancement film (Polarization Conversion Film is called for short PCF); And polaroid is when being linear polarizer (linearpolarizer), the dual bright enhancement film of can arranging in pairs or groups (Dual Brightness Enhancement Film is called for short DBEF).
The present invention reintroduces a kind of transmission type lcd device, comprise a display panels and a backlight module, wherein backlight module is to be positioned at the display panels below, and display panels then comprises one first substrate, one second substrate, a liquid crystal layer, a polaroid and a bright enhancement film.Wherein, second substrate be on first substrate, a liquid crystal layer is then between first substrate and second substrate.And polaroid is the outside surface that is disposed at second substrate of relative liquid crystal layer, and polaroid has a major axes orientation.Bright enhancement film then is disposed at the outside surface of first substrate of relative liquid crystal layer, and wherein bright enhancement film has a major axes orientation, and the major axes orientation of the major axes orientation of bright enhancement film and polaroid has an angle.
Because the present invention replaces a polaroid in the known display panels with the bright enhancement film that originally is arranged at backlight module, thus can under the situation that increases backlight module brightness, reduce cost simultaneously, simplified manufacturing technique, and make product thinner.
Description of drawings
For above and other objects of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and cooperate appended graphicly, be described in detail below:
Figure 1 shows that the schematic top plan view of known a kind of LCD; And
Fig. 2 is the perspective view according to the LCD of a preferred embodiment of the present invention.
Description of reference numerals:
100,200: LCD
102a, 102b, 202a, 202b: substrate
104,204: liquid crystal layer
106a, 106b, 206: polaroid
110,210: display panels
120,220: backlight module
122,222: fluorescent tube
124,224: light guide plate
126,226: reflector plate
128,230: bright enhancement film
223a: light entrance face
223b: light diffusingsurface
223c: light-emitting face
Embodiment
The present invention can be applicable to various LCD, please refer to Fig. 2, according to the perspective view of the LCD of a preferred embodiment of the present invention.
Please refer to Fig. 2, LCD 200 of the present invention comprises a display panels 210 and a backlight module (Back Light Module) 220, and wherein backlight module 220 is to be positioned at display panels 210 belows.And display panels 210 comprises one first substrate 202b, one second substrate 202a, a liquid crystal layer 204, a polaroid 206 and a bright enhancement film 230, and wherein the first substrate 202b for example is that active assembly array base plate or passive component multiple substrate, the second substrate 202a for example are colored filter substrates.The configuration of aforementioned each assembly is as follows: the second substrate 202a be disposed at that the first substrate 202b goes up, 204 of liquid crystal layers are between the first substrate 202b and the second substrate 202a, and bright enhancement film 230 is the outside surfaces that are disposed at the first substrate 202b of relative liquid crystal layer 204, and wherein bright enhancement film 230 has a major axes orientation (not shown).In addition, polaroid 206 is the outside surfaces that are disposed at the second substrate 202a of relative liquid crystal layer 204, and polaroid 206 has a major axes orientation (not shown), and the major axes orientation of the major axes orientation of bright enhancement film 230 and polaroid 206 has an angle, and wherein the folded angle of the major axes orientation of the major axes orientation of bright enhancement film 230 and polaroid 206 for example is 90 degree.In addition, when polaroid 206 for example was circular polarizing disk (circular polarizer), can arrange in pairs or groups changed the brightness enhancement film bright enhancement film 230 of (Polarization Conversion Film is called for short PCF) as polarized light; And when polaroid 206 is linear polarizer (linear polarizer), can arrange in pairs or groups as the dual bright enhancement film bright enhancement film 230 of (Dual Brightness Enhancement Film is called for short DBEF).
Referring again to Fig. 2, bright enhancement film 230 effect originally is to increase the brightness that backlight produced of LCD 200, the spotlight effect of its principle and light guide plate is similar, be raw material mainly with polyester (polyester) or polycarbonate (polycarbonate), utilize ejection formation or stick acryl resin mode, make jagged plate face, can allow the former light that comes that spread concentrate once again, reduce the light coefficient of losses, so can increase brightness.And the present invention further extends its function except the blast effect of utilization bright enhancement film 230, bright enhancement film 230 is replaced polaroid use.
And be example with common bright enhancement film 230 as dual bright enhancement film (DBEF), its application principle is described.Because the blast principle of dual bright enhancement film is when utilizing Brewster angle incident different refractivity medium, the mutually perpendicular light in polarization direction has and penetrates fully and the difference of partial penetration, so storehouse quantity of the dual bright enhancement film of may command, so that the intensity of polarization light of partial penetration much smaller than the polarized light of another polarization state, makes polarizing coefficient (polarization) be enough to substitute present polaroid.And by following experimental measurement to numerical value, also can obtain to support data of the present invention, because via the parallel penetrance of dual bright enhancement film that measured of experiment be about 52.15%, vertically penetrance is about 11.8%, so the polarizing coefficient that can obtain dual bright enhancement film by following formula is about 75.25%.
Please continue with reference to Fig. 2, backlight module 220 is to be used for supplying the light source that brightness is abundant and be evenly distributed, and makes normally show image of display panels 210.Can comprise a light guide plate 224, a fluorescent tube 222 and a reflector plate 226 in the backlight module 220, wherein light guide plate 224 also has a light entrance face 223a, a smooth diffusingsurface 223b and a light-emitting face 223c.Fluorescent tube 222 is that correspondence is disposed at by the light entrance face 223a of light guide plate 224, reflector plate 226 then is to be disposed on the light diffusingsurface 223b of light guide plate 224.The light of launching when backlight module 220 is when light-emitting face 223c shines bright enhancement film 230, and light can be after passing bright enhancement film 230, because the polarisation effect of bright enhancement film 230 and by polarization.Afterwards, the light of polarization can pass liquid crystal layer 204, and because the arrangement mode voltage of liquid crystal molecule influences, therefore liquid crystal can change the polarizing angle of polarization light, and the light intensity that different polarizing angles causes out can be different, the light of varying strength is again via red, blue, green three pixels of second substrate 202 of colored filter substrate for example, will demonstrate the pixel of various brightness and different colours, just can form various images and the figure that naked eyes are seen via each pixel more at last.
Please pay special attention to, Fig. 2 in the present embodiment just is used for illustrating, and is not limitation range of application of the present invention, when every LCD has polarisation simultaneously and adds lustre to demand, all can go design, promptly directly use bright enhancement film to reach for polaroid according to feature of the present invention.Therefore, the present invention can accomplish to reduce cost, the effect of simplified manufacturing technique, and can make the thickness attenuation of product.
Though the present invention discloses as above with preferred embodiment; right its is not in order to qualification the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; can do various changes and retouching, so protection scope of the present invention defines and is as the criterion when looking the accompanying Claim book.
Claims (17)
1. transmission-type liquid crystal display panel comprises:
One first substrate;
One second substrate is disposed on this first substrate;
One liquid crystal layer is between this first substrate and this second substrate;
One polaroid be disposed at an outside surface of this second substrate of this liquid crystal layer relatively, and this polaroid has a major axes orientation; And
One bright enhancement film is disposed at an outside surface of this first substrate of this liquid crystal layer relatively, and wherein this bright enhancement film has a major axes orientation, and this major axes orientation of this major axes orientation of this bright enhancement film and this polaroid has an angle.
2. transmission-type liquid crystal display panel as claimed in claim 1 is characterized in that: this polaroid comprises circular polarizing disk, and this bright enhancement film comprises that polarized light changes brightness enhancement film.
3. transmission-type liquid crystal display panel as claimed in claim 1 is characterized in that: this polaroid comprises linear polarizer and this bright enhancement film comprises dual bright enhancement film.
4. transmission-type liquid crystal display panel as claimed in claim 1 is characterized in that: this first substrate is an active assembly array base plate.
5. transmission-type liquid crystal display panel as claimed in claim 4 is characterized in that: this active assembly array base plate is a plurality of groups of substrates of thin-film transistor.
6. transmission-type liquid crystal display panel as claimed in claim 1 is characterized in that: this first substrate is a passive component multiple substrate.
7. transmission-type liquid crystal display panel as claimed in claim 1 is characterized in that: this second substrate is a colored filter substrate.
8. transmission-type liquid crystal display panel as claimed in claim 1 is characterized in that: this folded angle of this major axes orientation of this bright enhancement film and this major axes orientation of this polaroid is 90 degree.
9. transmission type lcd device comprises:
One transmission-type liquid crystal display panel comprises:
One first substrate;
One second substrate is disposed on this first substrate;
One liquid crystal layer is between this first substrate and this second substrate;
One polaroid be disposed at an outside surface of this second substrate of this liquid crystal layer relatively, and this polaroid has a major axes orientation; And
One bright enhancement film is disposed at an outside surface of this first substrate of this liquid crystal layer relatively, and wherein this bright enhancement film has a major axes orientation, and this major axes orientation of this major axes orientation of this bright enhancement film and this polaroid has an angle; And
One backlight module is positioned at this display panels below.
10. transmission type lcd device as claimed in claim 9 is characterized in that: this polaroid comprises circular polarizing disk, and this bright enhancement film comprises that polarized light changes brightness enhancement film.
11. transmission type lcd device as claimed in claim 9 is characterized in that: this polaroid comprises linear polarizer, and this bright enhancement film comprises dual bright enhancement film.
12. transmission type lcd device as claimed in claim 9 is characterized in that: the folded angle of this major axes orientation of this bright enhancement film and this major axes orientation of this polaroid is 90 degree.
13. transmission type lcd device as claimed in claim 9 is characterized in that: this first substrate is an active assembly array base plate.
14. transmission type lcd device as claimed in claim 13 is characterized in that: this active assembly array base plate is a plurality of groups of substrates of thin-film transistor.
15. transmission type lcd device as claimed in claim 9 is characterized in that: this first substrate is a passive component multiple substrate.
16. transmission type lcd device as claimed in claim 9 is characterized in that: this second substrate is a colored filter substrate.
17. transmission type lcd device as claimed in claim 9 is characterized in that: this backlight module comprises:
One light guide plate, this light guide plate have a light entrance face, a smooth diffusingsurface and a light-emitting face;
One fluorescent tube, correspondence are disposed at by this light entrance face of this light guide plate; And
One reflector plate is disposed on this light diffusingsurface of this light guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031094120A CN100424555C (en) | 2003-04-07 | 2003-04-07 | Liquid cfystal display panel and liquid crystal display by using said panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031094120A CN100424555C (en) | 2003-04-07 | 2003-04-07 | Liquid cfystal display panel and liquid crystal display by using said panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1536405A CN1536405A (en) | 2004-10-13 |
| CN100424555C true CN100424555C (en) | 2008-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031094120A Expired - Fee Related CN100424555C (en) | 2003-04-07 | 2003-04-07 | Liquid cfystal display panel and liquid crystal display by using said panel |
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| Country | Link |
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| CN (1) | CN100424555C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101725915B (en) * | 2008-10-21 | 2012-03-28 | 鸿富锦精密工业（深圳）有限公司 | Back light module |
| CN109343272A (en) * | 2018-11-15 | 2019-02-15 | 惠州市华星光电技术有限公司 | Liquid crystal display |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6025897A (en) * | 1993-12-21 | 2000-02-15 | 3M Innovative Properties Co. | Display with reflective polarizer and randomizing cavity |
| US20010033349A1 (en) * | 1999-12-09 | 2001-10-25 | Masaru Honda | Polarizer, polarizing light source device and liquid crystal display |
| CN1416002A (en) * | 2001-11-02 | 2003-05-07 | 奇美电子股份有限公司 | Touch-typed LCD panel device |
-
2003
- 2003-04-07 CN CNB031094120A patent/CN100424555C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6025897A (en) * | 1993-12-21 | 2000-02-15 | 3M Innovative Properties Co. | Display with reflective polarizer and randomizing cavity |
| US20010033349A1 (en) * | 1999-12-09 | 2001-10-25 | Masaru Honda | Polarizer, polarizing light source device and liquid crystal display |
| CN1416002A (en) * | 2001-11-02 | 2003-05-07 | 奇美电子股份有限公司 | Touch-typed LCD panel device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1536405A (en) | 2004-10-13 |
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Granted publication date: 20081008 Termination date: 20210407 |