CN103676323A - Liquid crystal display panel and liquid crystal display device - Google Patents
Liquid crystal display panel and liquid crystal display device Download PDFInfo
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- CN103676323A CN103676323A CN201210319004.7A CN201210319004A CN103676323A CN 103676323 A CN103676323 A CN 103676323A CN 201210319004 A CN201210319004 A CN 201210319004A CN 103676323 A CN103676323 A CN 103676323A
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Abstract
The invention discloses a liquid crystal display panel which comprises a first substrate, a second substrate and a liquid crystal layer. The first substrate is provided with a first alignment layer. The second substrate is arranged opposite to the first substrate and provided with a second alignment layer. The portion between the first substrate and the second substrate is filled with the liquid crystal layer, and the first alignment layer and the second alignment layer make contact with the liquid crystal layer and are first type alignment layers, and a second type alignment layer is arranged on only one of the first substrate and the second substrate.
Description
Technical field
The present invention system is about a kind of display panel and display device, especially in regard to a kind of display panels and liquid crystal indicator.
Background technology
LCD alignment technology is one of gordian technique determining the shown picture quality of a liquid crystal indicator.Have liquid crystal material in display panels only and there is stable and uniform initial arrangement, just can present high-quality picture.In general liquid crystal indicator, there is the thin layer for inducing liquid crystal molecular orientation to arrange, be called liquid crystal alignment layer (alignment layer).
On processing procedure, often utilize rubbing manipulation (rubbing method) that liquid crystal molecule is able to evenly distributed, it is by micro-groove that for example a polyimide (polyimide, PI) is arranged in parallel with generation through mechanical friction, can reach the orientation of liquid crystal molecule by groove.
Yet, while manufacturing liquid crystal alignment layer due to rubbing manipulation, can produce static and micronic dust, and destroy thin film transistor (TFT) or pollute etc., and thereby reduce the quality of liquid crystal indicator.In addition, rubbing manipulation also needs multiple tracks processing procedure and increases manufacturing time and cost.
Therefore, in known techniques, also there is a technology that does not need pi both alignment layers, be called " PI-less " or " PI-free ", it is by liquid crystal material mix monomer and is placed between two substrates, then makes monomer produce polymerization and on the surface of two substrates Fluid Contacting crystal layer, form a macromolecule both alignment layers by irradiation.Yet what above-mentioned technology can be due to orientation effect is unstable, makes display panels easily produce dark state bright spot or bright line and cause product yield to decline.
Therefore, how to provide a kind of display panels and liquid crystal indicator, can in the situation that using PI-less processing procedure, reduce the generation of dark state bright spot and bright line, and then improving product yield and display quality, real is one of current important topic.
Summary of the invention
Because above-mentioned problem, the present invention's object can, in the situation that using PI-less processing procedure, be avoided display panels and the liquid crystal indicator of the generation of dark state bright spot, bright line for providing a kind of.
For reaching above-mentioned purpose, according to a kind of display panels of the present invention, comprise a first substrate, a second substrate and a liquid crystal layer.First substrate has one first both alignment layers.Second substrate and first substrate are oppositely arranged, and have one second both alignment layers.Liquid crystal layer is filled between first substrate and second substrate, and this first both alignment layers and this second orientation series of strata Fluid Contacting crystal layer.The first both alignment layers and second orientation series of strata the first type both alignment layers, and first substrate and second substrate only one of them has a Second-Type both alignment layers.
In one embodiment, first substrate and second substrate are the combination of a colored filter substrate and a thin film transistor base plate.
In one embodiment, display panels, its first type orientation series of strata photoinduction macromolecule both alignment layers, Second-Type orientation series of strata pi both alignment layers.
In one embodiment, the first type both alignment layers is between Second-Type both alignment layers and liquid crystal layer.
In one embodiment, the first type orientation series of strata are formed by a plurality of monomer polymerizations respectively.These monomers can comprise single acrylic group monomer, two acrylic group monomer or its combination.Single acrylic group single mass system dodecyl-2-acrylate (dodecyl prop-2-enoate).Two acrylic group single mass systems 4; 4 '-bis-acryloyl group-diphenyl (4; 4 '-bisacryloyl-biphenyl) or 4,4 '-bis-[the own oxygen base of 4-(acryloxy)] diphenyl (4,4 '-bis[4-(acryloyxy) hexyloxy] biphenyl).
In one embodiment, the thickness of Second-Type both alignment layers is between 100～1000 dusts.
In one embodiment, the first both alignment layers and the second both alignment layers at least one of them thickness be less than 50 dusts.
For reaching above-mentioned purpose, according to all liquid crystal indicators of one of the present invention, comprise a backlight module and a display panels.Display panels and backlight module are oppositely arranged, and comprise a first substrate, a second substrate and a liquid crystal layer.First substrate has one first both alignment layers.Second substrate and first substrate are oppositely arranged, and have a Second-Type both alignment layers.Liquid crystal layer is filled between first substrate and second substrate, and this first both alignment layers and this second orientation series of strata Fluid Contacting crystal layer.The first both alignment layers and second orientation series of strata the first type both alignment layers, and first substrate and second substrate only one of them has a Second-Type both alignment layers.
From the above, in the present invention's display panels and liquid crystal indicator, owing to only setting up a Second-Type both alignment layers on a substrate, Second-Type both alignment layers is for example pi both alignment layers, thereby can promote orientation effect when carrying out PI-less processing procedure, therefore can reduce panel, produce dark state bright spot and bright line, and then improving product yield and display quality.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of display panels of preferred embodiment of the present invention; And
Fig. 2 is the schematic diagram of a kind of liquid crystal indicator of preferred embodiment of the present invention.
Main element symbol description:
1,2: display panels
11: first substrate
111: Second-Type both alignment layers
112: the first both alignment layers
113,123: substrate body
114,124: polarizer
12: second substrate
122: the second both alignment layers
13: liquid crystal layer
3: backlight module
4: liquid crystal indicator
Embodiment
Hereinafter with reference to correlative type, a kind of display panels and liquid crystal indicator according to preferred embodiment of the present invention are described, wherein identical element is illustrated the reference marks with identical.
Fig. 1 is the schematic diagram of a kind of display panels 1 of preferred embodiment of the present invention, the present invention does not limit the kind of display panels 1, it can be for example a fringe field switching (Fringe Field Switching, FFS) display panels, a plane internal conversion type (In-Plane Switching, IPS) display panels or a vertical orientation (Vertical Alignment, VA) display panels.Display panels 1 comprises a first substrate 11, a second substrate 12 and a liquid crystal layer 13.First substrate 11 is oppositely arranged with second substrate 12, and liquid crystal layer 13 is arranged between first substrate 11 and second substrate 12.First substrate 11 is the combination of a colored filter substrate and a thin film transistor base plate with second substrate 12, and in this, first substrate 11 is to take thin film transistor base plate as example, and second substrate 12 is to take colored filter substrate as example.In addition, the present invention's display panels 1 also can be applied other technologies and have different variation aspects, for example chromatic filter layer can be arranged to (color filter on array on thin film transistor base plate, COA), chromatic filter layer and black matrix" are arranged to (black matrix on array on thin film transistor base plate, BOA) or by thin film transistor (TFT) array be arranged at (TFT on CF is also called TOC or array on CF) on colored filter substrate.
First substrate 11 comprises one first both alignment layers 112 and a Second-Type both alignment layers 111.Wherein, the first both alignment layers 112 is the first type both alignment layers, and the first type both alignment layers can be photoinduction macromolecule both alignment layers, and Second-Type both alignment layers 111 can be pi (polyimide, PI) both alignment layers.In this, Second-Type both alignment layers 111 is through alignment manufacture process, not process.The first both alignment layers 112 is to be formed by a plurality of monomer polymerizations, and these monomers for example comprise single acrylic group monomer (mono-acrylic monomer), two acrylic group monomer (bi-acrylic monomer) or its combination.Wherein, the chemical name of single acrylic group monomer is for example dodecyl-2-acrylate (dodecyl prop-2-enoate), and its chemical constitution is as follows:
Two acrylic group monomer chemical names are for example 4,4 '-bis-acryloyl group-diphenyl (4,4 '-bisacryloyl-biphenyl), and its chemical constitution is as follows:
In addition, the chemical name of two acrylic group monomers can be for example also 4,4 '-bis-[the own oxygen base of 4-(acryloxy)] diphenyl (4,4 '-bis[4-(acryloyxy) hexyloxy] biphenyl), and its chemical constitution is as follows:
In addition, first substrate 11 more comprises a substrate body 113 and a polarizer 114.Along with the kind of display panels 1 or the difference of application technology, the element that substrate body 113 comprises is also different, substrate body 113 can for example comprise a substrate, a thin film transistor (TFT) array and a pixel electrode layer etc., and wherein this substrate can be glass substrate, hardened glass substrate or plastic substrate.Polarizer 114 is to be attached at substrate body 113 away from one of liquid crystal layer 13 side, and Second-Type both alignment layers 111 and the first both alignment layers 112 are arranged at substrate body 113 near one of liquid crystal layer 13 side, and the first both alignment layers 112 is between Second-Type both alignment layers 111 and liquid crystal layer 13, and Fluid Contacting crystal layer 13.In the present embodiment, better light transmittance for maintenance medium LCD panel 1, the thickness of Second-Type both alignment layers 111 is got over Bao Yuehao, and preferably thickness is between 100～1000 dusts, compared to known pi both alignment layers, be greater than the thickness of 1000 dusts, the thickness of the Second-Type both alignment layers 111 of the present embodiment is less, and the present embodiment, by the thickness of attenuate Second-Type both alignment layers 111, can make the more known raising of light transmittance of the display panels 1 of the present embodiment.The thickness of the first both alignment layers 112 can be less than 50 dusts.
Second substrate 12 comprises one second both alignment layers 122.The second both alignment layers 122 is also the first type both alignment layers, the first type both alignment layers can be photoinduction macromolecule both alignment layers, system is formed by a plurality of monomer polymerizations, and these monomers for example comprise single acrylic group monomer (mono-acrylic monomer), two acrylic group monomer (bi-acrylic monomer) or its combination.In addition, second substrate 12 more comprises a substrate body 123 and a polarizer 124.Along with the kind of display panels 1 or the difference of application technology, the element that substrate body 123 comprises is also different, substrate body 123 can for example comprise a substrate, a black matrix", a chromatic filter layer and community electrode layer etc., and wherein this substrate can be glass substrate, hardened glass substrate or plastic substrate.Polarizer 124 is to be attached at substrate body 123 away from one of liquid crystal layer 13 side, and the second both alignment layers 122 is arranged at substrate body 123 near one of liquid crystal layer 13 side, and Fluid Contacting crystal layer 13.In the present embodiment, the thickness of the second both alignment layers 122 can be less than 50 dusts.
Below, be to take the manufacture method of display panels 1 as the display panels of example explanation the present embodiment.First, one of contraposition laminating first substrate 11 and a second substrate 12 are provided, and are provided with a liquid crystal compound between first substrate 11 and second substrate 12, wherein, first substrate 11 is provided with a Second-Type both alignment layers 111, and this Second-Type both alignment layers 111 can be pi both alignment layers.Liquid crystal compound can be by perfusion (injection) or liquid crystal drop laxative remedy (one drop fill, ODF) and is formed between two substrates.And liquid crystal compound comprises a liquid crystal material, a plurality of monomer and a smooth initiator (photoinitiator).These monomers for example comprise single acrylic group monomer (mono-acrylic monomer), two acrylic group monomer (bi-acrylic monomer) or its combination; The chemical formula of monomer is in upper detailed description, therefore repeat no more in this.Light initiator system comprises phenyl ketone (phenyl ketone), and its chemical name is 1-hydroxy-cyclohexylphenyl-ketone for example, and its chemical constitution is as follows:
Wherein, single acrylic group monomer is less than 4% with the better system of weight percent that two acrylic group monomers account for liquid crystal compound, more preferably, single acrylic group monomer accounts for the percentage by weight system of liquid crystal compound between 1.8% and 3.6%, two acrylic group monomers account for the percentage by weight system of liquid crystal compound between 0.3% and 0.64%, the better system of weight percent that light initiator accounts for liquid crystal compound is less than 1%, more preferably, the percentage by weight system that light initiator accounts for liquid crystal compound is between 0.1% and 0.2%.
Then, first substrate 11 and pixel electrode and the common electrode of second substrate 12 are applied to an electric field, so that liquid crystal is poured onto required direction.When applying electric field, first substrate 11 and second substrate 12 are carried out to irradiation.Wherein, the light source of irradiation can be used the light source of wide wavelength coverage, such as ultraviolet light sources such as middle pressure/high pressure/ultrahigh pressure mercury lamps.The wavelength of light source is for example 100～～400nm.By irradiation, can make these monomers produce polyreaction, and then on first substrate 11 and second substrate 12, form one first both alignment layers 112 and one second both alignment layers 122 respectively, and liquid crystal compound system becomes a liquid crystal layer 13.Wherein, the first both alignment layers 112 and the second both alignment layers 122 are photoinduction macromolecule both alignment layers.The person of should be noted, liquid crystal layer 13 may have a little monomer residue.
Fig. 2 is the schematic diagram of a kind of liquid crystal indicator 4 of preferred embodiment of the present invention, and liquid crystal indicator 4 comprises a display panels 2 and a backlight module 3.Display panels 2 can be the display panels of above-mentioned arbitrary aspect, and is oppositely arranged with backlight module 3.Backlight module 3 is that transmitting one light is to display panels 2.The present embodiment does not limit the kind of backlight module 3, and it can be for example straight-down negative or side light type back light module.
In sum, in the present invention's display panels and liquid crystal indicator, owing to only setting up a Second-Type both alignment layers on a substrate, Second-Type both alignment layers is for example pi both alignment layers, thereby can promote orientation effect when carrying out PI-less processing procedure, therefore can reduce panel, produce dark state bright spot and bright line, and then improving product yield and display quality.
The foregoing is only illustrative, but not be restricted person.Any spirit and category that does not depart from the present invention, and the equivalent modifications that it is carried out or change all should be contained in the claims in the present invention scope.
Claims (20)
1. a display panels, is characterized in that, described display panels comprises:
One first substrate, has one first both alignment layers;
One second substrate, is oppositely arranged with described first substrate, and has one second both alignment layers; And
One liquid crystal layer, between the first substrate described in being filled in and described second substrate, and the first described both alignment layers contacts described liquid crystal layer with the second described orientation series of strata;
Wherein, the first described both alignment layers and described second orientation series of strata the first type both alignment layers, and described first substrate and described second substrate only one of them has a Second-Type both alignment layers.
2. display panels as claimed in claim 1, is characterized in that, described first substrate and described second substrate are the combination of a colored filter substrate and a thin film transistor base plate.
3. display panels as claimed in claim 1, is characterized in that, the first described type orientation series of strata photoinduction macromolecule both alignment layers, described Second-Type orientation series of strata pi both alignment layers.
4. display panels as claimed in claim 1, is characterized in that, the first described type both alignment layers is between described Second-Type both alignment layers and described liquid crystal layer.
5. display panels as claimed in claim 1, is characterized in that, the first described type orientation series of strata are formed by a plurality of monomer polymerizations.
6. display panels as claimed in claim 5, is characterized in that, described monomer comprises single acrylic group monomer, two acrylic group monomer or its combination.
7. display panels as claimed in claim 6, is characterized in that, described single acrylic group single mass system dodecyl-2-acrylate.
8. display panels as claimed in claim 6, is characterized in that, described two acrylic group single mass systems 4,4 '-bis-acryloyl group-diphenyl or 4,4 '-bis-[the own oxygen base of 4-(acryloxy)] diphenyl.
9. display panels as claimed in claim 1, is characterized in that, the thickness of described Second-Type both alignment layers is between 100～1000 dusts.
10. display panels as claimed in claim 1, is characterized in that, the first described both alignment layers and the second described both alignment layers at least one of them thickness are less than 50 dusts.
11. 1 kinds of liquid crystal indicators, is characterized in that, described liquid crystal indicator comprises:
One backlight module; And
One display panels, is oppositely arranged with described backlight module, and comprises:
One first substrate, has one first both alignment layers;
One second substrate, is oppositely arranged with described first substrate, and has one second both alignment layers; And
One liquid crystal layer, between the first substrate described in being filled in and described second substrate, and the first described both alignment layers contacts described liquid crystal layer with the second described orientation series of strata;
Wherein, the first described both alignment layers and described second orientation series of strata the first type both alignment layers, and described first substrate and described second substrate only one of them has a Second-Type both alignment layers.
12. liquid crystal indicators as claimed in claim 11, is characterized in that, described first substrate and described second substrate are the combination of a colored filter substrate and a thin film transistor base plate.
13. liquid crystal indicators as claimed in claim 11, is characterized in that, the first described type orientation series of strata photoinduction macromolecule both alignment layers, described Second-Type orientation series of strata pi both alignment layers.
14. liquid crystal indicators as claimed in claim 11, is characterized in that, the first described type both alignment layers is between described Second-Type both alignment layers and described liquid crystal layer.
15. liquid crystal indicators as claimed in claim 11, is characterized in that, the first described type orientation series of strata are formed by a plurality of monomer polymerizations.
16. liquid crystal indicators as claimed in claim 15, is characterized in that, described monomer comprises single acrylic group monomer, two acrylic group monomer or its combination.
17. liquid crystal indicators as claimed in claim 16, is characterized in that, described single acrylic group single mass system dodecyl-2-acrylate.
18. liquid crystal indicators as claimed in claim 16, is characterized in that, described two acrylic group single mass systems 4,4 '-bis-acryloyl group-diphenyl or 4,4 '-bis-[the own oxygen base of 4-(acryloxy)] diphenyl.
19. liquid crystal indicators as claimed in claim 11, is characterized in that, the thickness of described Second-Type both alignment layers is between 100～1000 dusts.
20. liquid crystal indicators as claimed in claim 11, is characterized in that, the first described both alignment layers and the second described both alignment layers at least one of them thickness are less than 50 dusts.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210319004.7A CN103676323A (en) | 2012-08-31 | 2012-08-31 | Liquid crystal display panel and liquid crystal display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210319004.7A CN103676323A (en) | 2012-08-31 | 2012-08-31 | Liquid crystal display panel and liquid crystal display device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009036861A (en) * | 2007-07-31 | 2009-02-19 | Dainippon Printing Co Ltd | Liquid crystal display element |
| CN101978025A (en) * | 2008-03-25 | 2011-02-16 | 默克专利股份有限公司 | Liquid-crystal display |
| CN102224451A (en) * | 2008-11-27 | 2011-10-19 | 夏普株式会社 | Orientation film, liquid crystal display having orientation film, and method for forming orientation film |
| CN102272669A (en) * | 2009-01-09 | 2011-12-07 | 夏普株式会社 | Liquid crystal display device and composition for forming liquid crystal layer |
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- 2012-08-31 CN CN201210319004.7A patent/CN103676323A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009036861A (en) * | 2007-07-31 | 2009-02-19 | Dainippon Printing Co Ltd | Liquid crystal display element |
| CN101978025A (en) * | 2008-03-25 | 2011-02-16 | 默克专利股份有限公司 | Liquid-crystal display |
| CN102224451A (en) * | 2008-11-27 | 2011-10-19 | 夏普株式会社 | Orientation film, liquid crystal display having orientation film, and method for forming orientation film |
| CN102272669A (en) * | 2009-01-09 | 2011-12-07 | 夏普株式会社 | Liquid crystal display device and composition for forming liquid crystal layer |
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Application publication date: 20140326 |