CN104898325A - Liquid crystal display panel and device - Google Patents
Liquid crystal display panel and device Download PDFInfo
- Publication number
- CN104898325A CN104898325A CN201510252403.XA CN201510252403A CN104898325A CN 104898325 A CN104898325 A CN 104898325A CN 201510252403 A CN201510252403 A CN 201510252403A CN 104898325 A CN104898325 A CN 104898325A
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- Prior art keywords
- substrate
- alignment film
- alignment
- liquid crystal
- sulfuryl
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
- G02F1/133723—Polyimide, polyamide-imide
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
- G02F1/133788—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by light irradiation, e.g. linearly polarised light photo-polymerisation
Abstract
The invention provides a liquid crystal display panel and device. The liquid crystal display panel comprises a first substrate, a liquid crystal layer and a second substrate, a first alignment film is arranged on one side of the first substrate close to the liquid crystal layer, the liquid crystal layer is positioned between the first substrate and the second substrate, the second substrate is opposite to the first substrate, a second alignment film is arranged on one side of the second substrate close to the liquid crystal layer, the first alignment film and the second alignment film are made of organic macromolecule polymer, and the molecular structure of the organic macromolecule polymer of at least one of the first alignment film and the second alignment film contains a sulfuryl substituent group. By adding the sulfuryl substituent group into the molecular structure of the corresponding alignment film, alignment film colors can be decreased, production cost is reduced, and the light reaction performance of the alignment films is improved, so that display effects are enhanced.
Description
[technical field]
The present invention relates to display technology field, particularly relate to a kind of display panels and device.
[background technology]
Penetrance is a very important index of liquid crystal panel, and existing method is that the aperture opening ratio by improving liquid crystal panel realizes, but is the increase in the design difficulty of pixel, can cause the other problemses such as the reliability reduction of alignment film simultaneously.Although as the new technologies such as COA (color filter on array), BOA (BM on array) also can improve the penetrance of panel, but each of which increases the procedure for producing of liquid crystal panel, add cost, reduce yield, increase the risk of reliability.Although existing backlight technology also can reach the effect improving penetrance, also can increase cost, design more complicated.
Because liquid crystal panel generally arranges alignment film on upper and lower base plate, control the orientation of liquid crystal, the material of conventional alignment film is polyimide (PI).But polyimide is generally yellow film, can absorb light to a certain degree in visible region, thus reduce penetrance.Easily form charge transfer complex (CTC) in molecular structure due to traditional PI film, therefore causing its color comparatively dark, therefore having occurred that the transparency by improving polyimide improves the method for penetrance.First method conventional is at present:
Introduce containing fluoro substituents in PI molecular structure, utilize the electronegativity that fluorine atom is larger, suppress the formation of CTC, but fluorine-containing substituting group compares and is difficult to synthesis, cost is higher.
Second method is: by reducing the content (specifically adding alicyclic monomer) of aromatic structure in PI molecular structure, reduce the probability that CTC is formed, but increase the light reaction performance that alicyclic monomer can weaken PI, weaken the rigidity of PI, weaken the orientation ability of PI, affect reliability.
Therefore, be necessary to provide a kind of display panels and device, to solve the problem existing for prior art.
[summary of the invention]
The object of the present invention is to provide a kind of display panels and device, to solve the display panels of prior art and device when improving alignment film transparency, the technical matters that can increase cost and cause the light reaction performance of alignment film material and reliability to reduce.
For solving the problems of the technologies described above, the present invention constructs a kind of display panels, and it comprises:
First substrate, is provided with the first alignment film in the side near liquid crystal layer;
Described liquid crystal layer, between described first substrate and second substrate;
Described second substrate, is oppositely arranged with described first substrate, and described second substrate is provided with second in the side near described liquid crystal layer alignment film;
Wherein said first alignment film and described second has the material of alignment film to be all organic high molecular polymer, and described first alignment film and described second has in the molecular structure of the organic high molecular polymer of at least one alignment film in alignment film containing sulfuryl substituting group.
In described display panels of the present invention, described organic high molecular polymer comprises main chain and side chain; Described sulfuryl substituting group is arranged in described main chain or described side chain.
In described display panels of the present invention, described organic high molecular polymer is polyimide or polyamic acid.
In described display panels of the present invention, described polyimide and described polyamic acid are all synthesized by diamine monomer and dianhydride monomer;
Described sulfuryl substituting group is arranged in described at diamine monomer or described dianhydride monomer.
In described display panels of the present invention, described first substrate is coated with alignment liquid in advance, and described first alignment film obtains by carrying out the process of light alignment technique to the first substrate being coated with described alignment liquid;
Described second substrate is coated with alignment liquid in advance, and described second alignment film obtains by carrying out the process of light alignment technique to the second substrate being coated with described alignment liquid.
The present invention also provides a kind of liquid crystal indicator, and it comprises:
Backlight module; And
Display panels, it comprises:
First substrate, is provided with the first alignment film in the side near liquid crystal layer;
Described liquid crystal layer, between described first substrate and second substrate;
Described second substrate, is oppositely arranged with described first substrate, and described second substrate is provided with second in the side near described liquid crystal layer alignment film;
Wherein said first alignment film and described second has the material of alignment film to be all organic high molecular polymer, and described first alignment film and described second has in the molecular structure of the organic high molecular polymer of at least one alignment film in alignment film containing sulfuryl substituting group.
In described liquid crystal indicator of the present invention, described organic high molecular polymer comprises main chain and side chain; Described sulfuryl substituting group is arranged in described main chain or described side chain.
In described liquid crystal indicator of the present invention, described organic high molecular polymer is polyimide or polyamic acid.
In described liquid crystal indicator of the present invention, described polyimide and described polyamic acid are all synthesized by diamine monomer and dianhydride monomer;
Described sulfuryl substituting group is arranged in described at diamine monomer or described dianhydride monomer.
In described liquid crystal indicator of the present invention, described first substrate is coated with alignment liquid in advance, and described first alignment film obtains by carrying out the process of light alignment technique to the first substrate being coated with described alignment liquid;
Described second substrate is coated with alignment liquid in advance, and described second alignment film obtains by carrying out the process of light alignment technique to the second substrate being coated with described alignment liquid.
Display panels of the present invention and device, by introducing sulfuryl substituting group in the molecular structure of alignment film material, while minimizing alignment film color, can reduce production cost, improve the light reaction performance of alignment film material, thus improve display effect.
[accompanying drawing explanation]
Fig. 1 is the structural representation of display panels of the present invention.
[embodiment]
The explanation of following embodiment is graphic with reference to what add, can in order to the specific embodiment implemented in order to illustrate the present invention.The direction term that the present invention mentions, such as " on ", D score, "front", "rear", "left", "right", " interior ", " outward ", " side " etc., be only the direction with reference to annexed drawings.Therefore, the direction term of use is in order to illustrate and to understand the present invention, and is not used to limit the present invention.In the drawings, the unit that structure is similar represents with identical label.
Please refer to Fig. 1, Fig. 1 is the structural representation of display panels of the present invention;
As shown in Figure 1, display panels of the present invention, comprises first substrate 10, second substrate 20, liquid crystal layer 30, and described first substrate 10 is provided with the first alignment film 11 in the side near liquid crystal layer; Described liquid crystal layer 30 is between described first substrate 10 and described second substrate 20; Described second substrate 20 is oppositely arranged with described first substrate 10, and described second substrate 20 is provided with the second alignment film 21 in the side near described liquid crystal layer; Also at arranged outside first polaroid 12 of described first substrate 10, the second polaroid 22 can be set in the outside of described second substrate 20; Described first substrate 10 also can arrange pixel electrode, described second substrate 20 can arrange public electrode;
Described first alignment film 11 is by obtaining with under type:
Alignment liquid is coated with in advance in the inner side (side near liquid crystal layer) of described first substrate 10; Wherein said alignment liquid is containing the solution of organic high polymer monomer;
Again alignment technique process is carried out to the first substrate 10 being coated with alignment liquid, be preferably the process of light alignment technique, namely the ultraviolet light of polarization is used to expose the first substrate 10 being coated with alignment liquid, make the organic polymer monomer synthetic polymer under illumination effect in described alignment liquid, due to the difference of exposure, the direction of the light that organic high molecular polymer receives also has deviation, the directive property of liquid crystal molecule is impelled to change, liquid crystal molecule is made to form different tilt angles, thus on described first substrate 10, form described first alignment film with alignment effect.Compared to friction matching technology, because light alignment technique can not produce electrostatic in processing procedure, display also can not be caused simultaneously bad, and can be applicable in the exploitation of high-res panel, therefore preferred light alignment technique.
Described second alignment film 21 is by obtaining with under type:
Alignment liquid is coated with in advance in the inner side (side near liquid crystal layer) of described second substrate 20;
Again alignment technique process is carried out to the second substrate 20 being coated with alignment liquid, be preferably the process of light alignment technique, namely the ultraviolet light of polarization is used to expose the second substrate 20 being coated with alignment liquid, make the organic polymer monomer synthetic polymer under illumination effect in described alignment liquid, due to the difference of exposure, the direction of the light that organic high molecular polymer receives also has deviation, the directive property of liquid crystal molecule is impelled to change, liquid crystal molecule is made to form different tilt angles, thus on described second substrate 20, form described second alignment film with alignment effect.
Wherein said first alignment film 11 and described second has the material of alignment film 21 to be all organic high molecular polymer, and described first alignment film 11 and described second has in the molecular structure of the organic high molecular polymer of at least one alignment film in orientation 21 film containing sulfuryl substituting group.In the molecular structure of the i.e. only organic high molecular polymer of described first alignment film 11 containing in the molecular structure of sulfuryl substituting group, the only organic high molecular polymer of described second alignment film 21 containing sulfuryl substituting group; Or all contain sulfuryl substituting group in the molecular structure of the organic high molecular polymer of described first alignment film 11 and described second alignment film 21.
Because sulfuryl substituting group has strong suction electrically, effectively can prevent the formation of charge transfer complex in the molecular structure of organic high molecular polymer, therefore significantly improve the transparency of alignment film, phenyl ring electrically can be made to absorb generation blue shift owing to inhaling by force simultaneously.And due to sulfuryl substituting group be easier to synthesis, compared with other substituting groups existing, can reduce costs, and the reduction of light reaction performance of alignment film can not be caused, while the transparency effectively improving alignment film, the light reaction performance of alignment film can be ensured, and then improve display effect.
Preferably, described organic high molecular polymer comprises main chain and side chain; Described sulfuryl substituting group is arranged in described main chain or described side chain.Under normal circumstances, the molecular structure of described organic high molecular polymer has main chain and side chain, therefore described sulfuryl substituting group is introduced in main chain or side chain, the formation of charge transfer complex in polyimide and described polyamic acid can be reduced, and then improve the transparency of alignment film.
Preferably, described organic high molecular polymer is polyimide or polyamic acid.
Preferably, described polyimide and described polyamic acid are all synthesized by diamine monomer and dianhydride monomer; Described sulfuryl substituting group is arranged in described at diamine monomer or described dianhydride monomer.Under normal circumstances, the molecular structure of described polyimide and described polyamic acid comprises described diamine monomer and described dianhydride monomer, therefore described sulfuryl substituting group is introduced in described diamine monomer or described dianhydride monomer, the formation of charge transfer complex in polyimide and described polyamic acid can be reduced, and then improve the transparency of alignment film.
The side chain of described polyimide can have conjugated double bond structures, thus the resistance value of polyimide can be made to be less than the resistance value of liquid crystal material, the Image sticking problems of display panels can be improved.
Provide the example that described sulfuryl substituting group is arranged in the main chain of the dianhydride monomer of described polyimide below:
Provide the example that described sulfuryl substituting group is arranged in the side chain of the dianhydride monomer of described polyimide below:
Provide the example that described sulfuryl substituting group is arranged in the main chain of the diamine monomer of described polyimide below:
Preferably, described first substrate 10 is color membrane substrates, and described second substrate 20 is array base palte.Certain described first substrate 10 also can be COA substrate.
Display panels of the present invention, by introducing sulfuryl substituting group in the molecular structure of alignment film material, while minimizing alignment film color, can reduce production cost, improves the light reaction performance of alignment film material, thus improve display effect.
The present invention also provides a kind of liquid crystal indicator, and it comprises: backlight module and display panels; As shown in Figure 1, described display panels, comprises first substrate 10, second substrate 20, liquid crystal layer 30, and described first substrate 10 is provided with the first alignment film 11 in the side near liquid crystal layer; Described liquid crystal layer 30 is between described first substrate 10 and described second substrate 20; Described second substrate 20 is oppositely arranged with described first substrate 10, and described second substrate 20 is provided with the second alignment film 21 in the side near described liquid crystal layer; Also can at arranged outside first polaroid 12 of described first substrate 10, at arranged outside second polaroid 22 of described second substrate 20; Described first substrate 10 also can arrange pixel electrode, described second substrate 20 can arrange public electrode;
Described first alignment film 11 is by obtaining with under type:
Alignment liquid is coated with in advance in the inner side (side near liquid crystal layer) of described first substrate 10;
Again alignment technique process is carried out to the first substrate 10 being coated with alignment liquid, be preferably the process of light alignment technique, namely the ultraviolet light of polarization is used to expose the first substrate 10 being coated with alignment liquid, make the organic polymer monomer synthetic polymer under illumination effect in described alignment liquid, due to the difference of exposure, the direction of the light that organic high molecular polymer receives also has deviation, the directive property of liquid crystal molecule is impelled to change, liquid crystal molecule is made to form different tilt angles, thus on described first substrate 10, form described first alignment film with alignment effect.Compared to friction matching technology, because light alignment technique can not produce electrostatic in processing procedure, display also can not be caused simultaneously bad, and can be applicable in the exploitation of high-res panel, therefore preferred light alignment technique.
Described second alignment film 21 is by obtaining with under type:
Alignment liquid is coated with in advance in the inner side (side near liquid crystal layer) of described second substrate 20;
Again alignment technique process is carried out to the second substrate 20 being coated with alignment liquid, be preferably the process of light alignment technique, namely the ultraviolet light of polarization is used to expose the second substrate 20 being coated with alignment liquid, make the organic polymer monomer synthetic polymer under illumination effect in described alignment liquid, due to the difference of exposure, the direction of the light that organic high molecular polymer receives also has deviation, the directive property of liquid crystal molecule is impelled to change, liquid crystal molecule is made to form different tilt angles, thus on described second substrate 20, form described second alignment film with alignment effect.
Wherein said first alignment film 11 and described second has the material of alignment film 21 to be all organic high molecular polymer, and described first alignment film 11 and described second has in the molecular structure of the organic high molecular polymer of at least one alignment film in orientation 21 film containing sulfuryl substituting group.In the molecular structure of the i.e. only organic high molecular polymer of described first alignment film 11 containing in the molecular structure of sulfuryl substituting group, the only organic high molecular polymer of described second alignment film 21 containing sulfuryl substituting group; Or all contain sulfuryl substituting group in the molecular structure of the organic high molecular polymer of described first alignment film 11 and described second alignment film 21.
Because sulfuryl substituting group has strong suction electrically, effectively can prevent the formation of charge transfer complex in the molecular structure of organic high molecular polymer, therefore significantly improve the transparency of alignment film, phenyl ring electrically can be made to absorb generation blue shift owing to inhaling by force simultaneously.And due to sulfuryl substituting group be easier to synthesis, compared with other substituting groups existing, can reduce costs, and the reduction of light reaction performance of alignment film can not be caused, while the transparency effectively improving alignment film, the light reaction performance of alignment film can be ensured, and then improve display effect.
Preferably, described organic high molecular polymer comprises main chain and side chain; Described sulfuryl substituting group is arranged in described main chain or described side chain.Under normal circumstances, the molecular structure of described organic high molecular polymer has main chain and side chain, therefore described sulfuryl substituting group is introduced in main chain or side chain, the formation of charge transfer complex in polyimide and described polyamic acid can be reduced, and then improve the transparency of alignment film.
Preferably, described organic high molecular polymer is polyimide or polyamic acid.
Preferably, described polyimide and described polyamic acid are all synthesized by diamine monomer and dianhydride monomer; Described sulfuryl substituting group is arranged in described at diamine monomer or described dianhydride monomer.Under normal circumstances, the molecular structure of described polyimide and described polyamic acid comprises described diamine monomer and described dianhydride monomer, therefore described sulfuryl substituting group is introduced in described diamine monomer or described dianhydride monomer, the formation of charge transfer complex in polyimide and described polyamic acid can be reduced, and then improve the transparency of alignment film.
Provide the example that described sulfuryl substituting group is arranged in the main chain of the dianhydride monomer of described polyimide below:
Provide the example that described sulfuryl substituting group is arranged in the side chain of the dianhydride monomer of described polyimide below:
Provide the example that described sulfuryl substituting group is arranged in the main chain of the diamine monomer of described polyimide below:
Preferably, described first substrate 10 is color membrane substrates, and described second substrate 20 is array base palte.Certain described first substrate 10 also can be COA substrate.
Liquid crystal indicator of the present invention, by introducing sulfuryl substituting group in the molecular structure of alignment film material, while minimizing alignment film color, can reduce production cost, improves the light reaction performance of alignment film material, thus improve display effect.
In sum; although the present invention discloses as above with preferred embodiment; but above preferred embodiment is also not used to limit the present invention; those of ordinary skill in the art; without departing from the spirit and scope of the present invention; all can do various change and retouching, the scope that therefore protection scope of the present invention defines with claim is as the criterion.
Claims (10)
1. a display panels, is characterized in that, comprising:
First substrate, is provided with the first alignment film in the side near liquid crystal layer;
Described liquid crystal layer, between described first substrate and second substrate;
Described second substrate, is oppositely arranged with described first substrate, and described second substrate is provided with second in the side near described liquid crystal layer alignment film;
Wherein said first alignment film and described second has the material of alignment film to be all organic high molecular polymer, and described first alignment film and described second has in the molecular structure of the organic high molecular polymer of at least one alignment film in alignment film containing sulfuryl substituting group.
2. display panels according to claim 1, is characterized in that, described organic high molecular polymer comprises main chain and side chain; Described sulfuryl substituting group is arranged in described main chain or described side chain.
3. display panels according to claim 1, is characterized in that, described organic high molecular polymer is polyimide or polyamic acid.
4. display panels according to claim 3, is characterized in that, described polyimide and described polyamic acid are all synthesized by diamine monomer and dianhydride monomer;
Described sulfuryl substituting group is arranged in described at diamine monomer or described dianhydride monomer.
5. display panels according to claim 1, is characterized in that,
Described first substrate is coated with alignment liquid in advance, and described first alignment film obtains by carrying out the process of light alignment technique to the first substrate being coated with described alignment liquid;
Described second substrate is coated with alignment liquid in advance, and described second alignment film obtains by carrying out the process of light alignment technique to the second substrate being coated with described alignment liquid.
6. a liquid crystal indicator, is characterized in that, comprising:
Backlight module; And
Display panels, it comprises:
First substrate, is provided with the first alignment film in the side near liquid crystal layer;
Described liquid crystal layer, between described first substrate and second substrate;
Described second substrate, is oppositely arranged with described first substrate, and described second substrate is provided with second in the side near described liquid crystal layer alignment film;
Wherein said first alignment film and described second has the material of alignment film to be all organic high molecular polymer, and described first alignment film and described second has in the molecular structure of the organic high molecular polymer of at least one alignment film in alignment film containing sulfuryl substituting group.
7. want the liquid crystal indicator described in 6 according to right, it is characterized in that, described organic high molecular polymer comprises main chain and side chain; Described sulfuryl substituting group is arranged in described main chain or described side chain.
8. liquid crystal indicator according to claim 6, is characterized in that, described organic high molecular polymer is polyimide or polyamic acid.
9. liquid crystal indicator according to claim 8, is characterized in that, described polyimide and described polyamic acid are all synthesized by diamine monomer and dianhydride monomer;
Described sulfuryl substituting group is arranged in described at diamine monomer or described dianhydride monomer.
10. liquid crystal indicator according to claim 6, is characterized in that,
Described first substrate is coated with alignment liquid in advance, and described first alignment film obtains by carrying out the process of light alignment technique to the first substrate being coated with described alignment liquid;
Described second substrate is coated with alignment liquid in advance, and described second alignment film obtains by carrying out the process of light alignment technique to the second substrate being coated with described alignment liquid.
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| CN201510252403.XA CN104898325A (en) | 2015-05-18 | 2015-05-18 | Liquid crystal display panel and device |
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| CN201510252403.XA CN104898325A (en) | 2015-05-18 | 2015-05-18 | Liquid crystal display panel and device |
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Application publication date: 20150909 |
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