CN101364011A - Multi-domain vertical alignment mode liquid crystal display panel and method for producing same - Google Patents
Multi-domain vertical alignment mode liquid crystal display panel and method for producing same Download PDFInfo
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- CN101364011A CN101364011A CNA2008102005964A CN200810200596A CN101364011A CN 101364011 A CN101364011 A CN 101364011A CN A2008102005964 A CNA2008102005964 A CN A2008102005964A CN 200810200596 A CN200810200596 A CN 200810200596A CN 101364011 A CN101364011 A CN 101364011A
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Abstract
The invention discloses a polydomain vertical alignment mode liquid crystal display panel and a manufacturing method thereof. The liquid crystal display panel includes a colorized film basal plate, an array basal plate and liquid crystal molecules. An alignment bulge is formed on the surface of the colorized film basal plate; an alignment bulge or an alignment concave part is formed on the surface of the array basal plate; the liquid crystal molecules are filled between the colorized film basal plate and the array basal plate, wherein the liquid crystal molecules are added with a polymer with the characteristics of light-curing and heat-curing, and the liquid crystal molecules arranged near the alignment bulge are fixed by the polymer with the characteristics of light-curing and heat-curing, and approximately vertical to the basal plates. The polydomain vertical alignment mode liquid crystal display panel and the manufacturing method thereof efficiently solve the problem of light leakage in a dark state, and improve the contrast and the response speed of the liquid crystal display panel.
Description
Technical field
The present invention relates to a kind of display panels and manufacture method thereof, relate in particular to a kind of multi-domain vertical alignment mode liquid crystal display panel and manufacture method thereof.
Background technology
In recent years, display panels becomes the main flow that shows market gradually with its high image quality, low-power consumption, superiority such as radiationless.
Market is developed towards characteristics such as high-contrast, high brightness, low colour cast, response fast, wide angle of visibilities for the performance requirement of display panels.The technology that can realize wide angle of visibility requirement at present mainly contains three kinds of modes: stable twisted nematic liquid crystal (TN) is mixed wide visual angle film (WVF) display panels, copline switch mode (IPS) display panels, multi-domain vertical alignment mode (MVA) display panels.Wherein the MVA mode liquid crystal display panel becomes the display panels of main flow on the market owing to the superiority at aspects such as production and display characteristics.
Figure 1 shows that the diagrammatic cross-section of existing multi-domain vertical alignment mode (MVA) display panels.As shown in Figure 1, this multi-domain vertical alignment display panels is mainly by thin film transistor (TFT) (TFT) array base palte 101, colorized optical filtering (CF) substrate 102 and be clipped in two liquid crystal molecules 105 between the substrate and constitute.On thin-film transistor array base-plate 101 and the colored optical filtering substrates 102 transparency electrode 103 and 104 are arranged respectively, and vertical orientation film 106 and 107.108 are orientation protrusion (protrusion), be used for making liquid crystal molecule 105 to be multi-direction arrangement, and this orientation thing are configurable on thin-film transistor array base-plate 101 or colored optical filtering substrates 102, also can be configured on both simultaneously.
In the multi-domain vertical alignment LCD, when display frame was dark attitude, liquid crystal molecule 105 major axis were perpendicular to thin-film transistor array base-plate 101 and colored optical filtering substrates 102.Under the situation of collocation Polarizer (not shown), shown picture can obtain splendid dark attitude, thereby reaches the effect of high contrast.Yet, owing near the liquid crystal molecule the orientation protrusion 108 105 can present corresponding tilt state along with the surface configuration of orientation protrusion 108, cause light leak takes place near orientation protrusion 108, thereby make the contrast of display frame reduce.
Fig. 2 A and Fig. 2 B are a kind of distressed structure of multi-domain vertical alignment mode (MVA) display panels.The difference of this structure and Fig. 1 is that transparency electrode covers the surface of orientation protrusion 108.
See also Fig. 2 A, the multi-domain vertical alignment display panels mainly comprises thin film transistor (TFT) (TFT) array base palte 101, colorized optical filtering (CF) substrate 102 and is clipped in two liquid crystal molecules 105 between the substrate.On thin film transistor (TFT) (TFT) array base palte 101 and colorized optical filtering (CF) substrate 102 transparency electrode 103 and 104 are arranged respectively, and vertical orientation film 106 and 107.108 are the orientation protrusion, and transparency electrode 104 covers the surface of orientation protrusion 108.When not applying voltage, liquid crystal molecule is arranged perpendicular to substrate under the effect of vertical orientation film.Liquid crystal molecule 105 can produce along with orientation protrusion surface configuration and topple over accordingly near the orientation protrusion, forms multidomain structure.Owing near the liquid crystal molecule orientation protrusion 105 can be toppled over along with orientation protrusion surface configuration produces accordingly, will cause the phase delay at this place when dark attitude is not 0, thus the generation light leak.
Apply after the relevant voltage, liquid crystal molecule 105 deflects under electric field action, lqiuid crystal molecule tipping direction is opposite near direction of rotating and the orientation protrusion, shown in Fig. 2 B, after powering up, Liquid Crystal Molecules Alignment direction difference in the zones of different forms even multidomain structure.But when dark attitude, near the orientation protrusion 108 light leaks can take place equally, make the contrast of display frame reduce.
Wherein, it is to topple over along the slope direction that the liquid crystal molecule among Fig. 1 rotates, concrete, be exactly that change counterclockwise on slope, the left side, change clockwise on slope, the right; Liquid crystal molecule among Fig. 2 is then just opposite, is to topple over against the slope direction, though both initial arrangement states are much the same, because the rotation direction difference, liquid crystal molecule need rotate more perspective among Fig. 2, causes response speed lower.
In order to improve near the light leak problem the orientation protrusion under the dark attitude of multi-domain vertical alignment mode (MVA) display panels, improve the contrast of device, at present main way is by covering light leak and phase compensation mode.Disclosed a kind of multi-domain vertical alignment mode liquid crystal display panel as patent WO2008/053615, orientation protrusion material is wherein used high OD value material, thereby can cover the light leak at orientation protrusion place under the dark attitude, improves the contrast of device.Chinese patent CN200410096119 has disclosed a kind of multifield vertical directional liquid crystal display panel, and orientation protrusion material wherein uses anisotropic birefringence macromolecular material, makes the orientation protrusion have the phase compensation function, equally also can reduce light leak.The said method light leak reduces all more limited, can not solve the light leak problem fully, has more or less reduced the penetrance and the brightness of device simultaneously.
Summary of the invention
Technical matters to be solved by this invention provides a kind of multi-domain vertical alignment mode liquid crystal display panel and manufacture method thereof, solves dark attitude light leak problem, improves the contrast and the response speed of display panels.
The present invention solves the problems of the technologies described above the manufacture method that the technical scheme that adopts provides a kind of multi-domain vertical alignment mode liquid crystal display panel, may further comprise the steps:
A) in liquid crystal, add polymkeric substance with light/heat curing character;
B) apply appropriate voltage after, make near the orientation protrusion liquid crystal deflecting element to being approximately perpendicular to orientation substrate;
C) provide a mask to separate orientation protrusion zone and other zones;
D) make polymkeric substance and liquid crystal molecule cross linking reaction and solidification in the liquid crystal by UV irradiation or heat radiation, thereby near the orientation of the liquid crystal molecule of orientation protrusion is fixed.
The present invention also provides a kind of multi-domain vertical alignment mode liquid crystal display panel for solving the problems of the technologies described above, and comprising:
One color membrane substrates, its surface is formed with the orientation protrusion;
Array basal plate, its surface are formed with orientation protrusion or orientation recess;
Liquid crystal molecule is filled between described color membrane substrates and the array base palte;
Wherein, be added with the polymkeric substance of light/heat curing character in the described liquid crystal molecule, be positioned near the liquid crystal molecule of orientation protrusion and fixed, be approximately perpendicular to described substrate by the polymkeric substance of light/heat curing character.
The present invention contrasts prior art following beneficial effect: multi-domain vertical alignment mode liquid crystal display panel provided by the invention and manufacture method thereof the polymkeric substance by light/heat curing character is near the orientation of the liquid crystal molecule of orientation protrusion fixedly, make near the liquid crystal molecule the orientation protrusion be approximately perpendicular to substrate, reduce the phase delay of light by liquid crystal molecule generation herein, and then improve the phenomenon of panel light leak, improve the contrast and the response speed of display panel.
Description of drawings
Fig. 1 is the diagrammatic cross-section of existing multi-domain vertical orientation mode display panels.
Fig. 2 A structural representation that is multi-domain vertical alignment mode liquid crystal display panel when making alive not.
Fig. 2 B is multi-domain vertical alignment mode liquid crystal display panel structural representation when making alive.
Fig. 3 is the invention process process schematic representation.
Fig. 4 A is the floor map of the embodiment of the invention.
Fig. 4 B is the diagrammatic cross-section of the embodiment of the invention.
Fig. 5 is the diagrammatic cross-section of another embodiment of the present invention.
Among the figure
101 array base paltes, 102 colored optical filtering substrates, 103 transparency electrodes
104 transparency electrodes, 105 liquid crystal molecules, 106 vertical orientation films
107 vertical orientation films, 108 orientation protrusions, 109 mask
110 light/heat curing copolymer main chain 111 orientation recesses
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Multi-domain vertical alignment display panels of the present invention sees also Fig. 2, comprising the array base palte 101 and the colored optical filtering substrates 102 of the placement that is parallel to each other and being clipped in two liquid crystal molecules 105 between the substrate.On array base palte 101 and the colored optical filtering substrates 102 transparency electrode 103 and 104 are arranged respectively, and vertical orientation film 106 and 107.Array base palte 101 and/or colored optical filtering substrates 102 are provided with orientation protrusion 108.
Fig. 3 is the invention process process schematic representation.
See also Fig. 3, add the polymkeric substance with light/heat curing character in liquid crystal, with Dainippon Ink and Chemicals, the liquid crystalline acrylate ester monomer UCL-001 that Inc. company makes is the polymkeric substance of light/heat curing character in the present embodiment.After applying appropriate voltage, near the orientation protrusion 108 liquid crystal molecule 105 deflects, deflect into the degree that is approximately perpendicular to orientation substrate, separate orientation protrusion zone and other zones, guarantee that the photocuring process only occurs in orientation protrusion zone with mask 109.Make polymerization composition and liquid crystal molecule cross linking reaction and solidification in the liquid crystal by UV irradiation or heat radiation, light/heat curing copolymer main chain 110 and liquid crystal molecule are crosslinked, thereby make near the orientation of the liquid crystal molecule that the orientation protrusion is fix, promptly near the liquid crystal molecule the orientation protrusion is approximately perpendicular to substrate.After closing voltage, crosslinked liquid crystal molecule does not take place will be returned to initial ordered state, and will be fixed by the arrangement of the crosslinked liquid crystal molecule of light/heat curing copolymer main chain 110, maintenance is with respect to the plumbness of substrate, corresponding this phase delay that is in the dark attitude that does not apply voltage will reduce, thereby light leak will reduce.
In addition, compared to existing technology, display panels of the present invention is equivalent to the process that near the liquid crystal molecule of orientation protrusion has had a preorientation, and response speed is corresponding to be improved.That is to say that the present invention can change near the deflection state of the liquid crystal molecule the orientation protrusion by the voltage that change applies, thus the contrast of trim and response speed.As for applying voltage range, the differences such as (pattern, design, box are thick etc.), material composition because different structure, be difficult to unified fixing voltage range, but generally should apply voltage, can infer the voltage range that roughly by calculating angle that liquid crystal molecule turns over less than maximum.
Fig. 4 A is the floor map of the embodiment of the invention, and Fig. 4 B is the diagrammatic cross-section of the embodiment of the invention.
See also Fig. 4 A and 4B, wherein, near the liquid crystal molecule 105 the orientation protrusion 108 is θ with the angle of colored optical filtering substrates 102.The θ value is not 74.8 ° before the embodiment, and setting the θ value after implementing this programme is 85 °.Contrast and response time that simulation obtains are as follows:
As can be seen from the above table, multi-domain vertical alignment mode liquid crystal display panel provided by the invention, penetrance increases, and brightness increases, and contrast is significantly improved, and the response time reduces.
In order to simplify technology, Fig. 5 has provided the diagrammatic cross-section of another embodiment of the present invention, its difference is to be provided with orientation protrusion 108 in colorized optical filtering (CF) substrate 102 sides, and being provided with orientation recess 111 in thin film transistor (TFT) (TFT) array base palte 101 sides, the multi-domain vertical orientation mode display panels that present embodiment provides can realize that also the multidomain of homogeneous shows.This structure can realize simplifying on technology, and thin film transistor (TFT) (TFT) array base palte 101 has lacked orientation protrusion structure, but by forming orientation recess 111, this orientation recess 111 can be in the contact through hole etching technics, and etching SiN forms during dielectric layer.
In sum, multi-domain vertical alignment mode liquid crystal display panel provided by the invention and manufacture method thereof the polymkeric substance by light/heat curing character is fixed near the orientation of the liquid crystal molecule the orientation protrusion 108, make near the liquid crystal molecule orientation protrusion 108 be approximately perpendicular to substrate, reduce the phase delay of light by liquid crystal molecule generation herein, and then improve the phenomenon of panel light leak, improve the contrast and the response speed of display panel.
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; when can doing a little modification and perfect, so protection scope of the present invention is when with being as the criterion that claims were defined.
Claims (2)
1, a kind of manufacture method of multi-domain vertical alignment mode liquid crystal display panel may further comprise the steps:
A) in liquid crystal, add polymkeric substance with light/heat curing character;
B) apply appropriate voltage after, make near the orientation protrusion liquid crystal deflecting element to being approximately perpendicular to orientation substrate;
C) provide a mask to separate orientation protrusion zone and other zones;
D) make polymkeric substance and liquid crystal molecule cross linking reaction and solidification in the liquid crystal by UV irradiation or heat radiation, thereby near the orientation of the liquid crystal molecule of orientation protrusion is fixed.
2, a kind of multi-domain vertical alignment mode liquid crystal display panel comprises:
One color membrane substrates, its surface is formed with the orientation protrusion;
Array basal plate, its surface are formed with orientation protrusion or orientation recess;
Liquid crystal molecule is filled between described color membrane substrates and the array base palte;
It is characterized in that, be added with the polymkeric substance of light/heat curing character in the described liquid crystal molecule, be positioned near the liquid crystal molecule of orientation protrusion and fixed, be approximately perpendicular to described substrate by the polymkeric substance of light/heat curing character.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008102005964A CN101364011B (en) | 2008-09-27 | 2008-09-27 | Multi-domain vertical alignment mode liquid crystal display panel and method for producing same |
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| CN2008102005964A CN101364011B (en) | 2008-09-27 | 2008-09-27 | Multi-domain vertical alignment mode liquid crystal display panel and method for producing same |
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| CN101364011A true CN101364011A (en) | 2009-02-11 |
| CN101364011B CN101364011B (en) | 2010-07-14 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102402068A (en) * | 2011-10-28 | 2012-04-04 | 深圳市华星光电技术有限公司 | Multi-domain vertical alignment LCD (liquid crystal display) panel |
| CN102789082A (en) * | 2012-08-10 | 2012-11-21 | 京东方科技集团股份有限公司 | Liquid crystal display panel and liquid crystal display device |
| CN104460116A (en) * | 2014-12-19 | 2015-03-25 | 京东方科技集团股份有限公司 | Liquid crystal display panel, manufacturing method thereof and display device |
| WO2016086618A1 (en) * | 2014-12-03 | 2016-06-09 | 京东方科技集团股份有限公司 | Liquid crystal screen and liquid crystal display device |
| WO2016172857A1 (en) * | 2015-04-28 | 2016-11-03 | 华为技术有限公司 | Multi-domain vertical alignment liquid crystal screen and manufacturing method thereof |
| WO2017063291A1 (en) * | 2015-10-15 | 2017-04-20 | 深圳市华星光电技术有限公司 | Method for fabricating va liquid crystal display panel |
| CN108008579A (en) * | 2017-11-30 | 2018-05-08 | 深圳市华星光电技术有限公司 | The light alignment method of liquid crystal display panel |
| CN110058470A (en) * | 2019-06-13 | 2019-07-26 | 京东方科技集团股份有限公司 | A kind of display panel and preparation method thereof and display equipment |
| CN110109310A (en) * | 2019-06-25 | 2019-08-09 | 京东方科技集团股份有限公司 | A kind of display panel and preparation method thereof |
-
2008
- 2008-09-27 CN CN2008102005964A patent/CN101364011B/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102402068B (en) * | 2011-10-28 | 2014-04-09 | 深圳市华星光电技术有限公司 | Multi-domain vertical alignment LCD (liquid crystal display) panel |
| CN102402068A (en) * | 2011-10-28 | 2012-04-04 | 深圳市华星光电技术有限公司 | Multi-domain vertical alignment LCD (liquid crystal display) panel |
| CN102789082A (en) * | 2012-08-10 | 2012-11-21 | 京东方科技集团股份有限公司 | Liquid crystal display panel and liquid crystal display device |
| CN102789082B (en) * | 2012-08-10 | 2015-10-21 | 京东方科技集团股份有限公司 | Display panels and liquid crystal indicator |
| US9952465B2 (en) | 2014-12-03 | 2018-04-24 | Boe Technology Group Co., Ltd. | Liquid crystal panel and liquid crystal display device |
| WO2016086618A1 (en) * | 2014-12-03 | 2016-06-09 | 京东方科技集团股份有限公司 | Liquid crystal screen and liquid crystal display device |
| CN104460116A (en) * | 2014-12-19 | 2015-03-25 | 京东方科技集团股份有限公司 | Liquid crystal display panel, manufacturing method thereof and display device |
| CN104460116B (en) * | 2014-12-19 | 2017-03-29 | 京东方科技集团股份有限公司 | A kind of display panels, its manufacture method and display device |
| WO2016172857A1 (en) * | 2015-04-28 | 2016-11-03 | 华为技术有限公司 | Multi-domain vertical alignment liquid crystal screen and manufacturing method thereof |
| WO2017063291A1 (en) * | 2015-10-15 | 2017-04-20 | 深圳市华星光电技术有限公司 | Method for fabricating va liquid crystal display panel |
| CN108008579A (en) * | 2017-11-30 | 2018-05-08 | 深圳市华星光电技术有限公司 | The light alignment method of liquid crystal display panel |
| CN110058470A (en) * | 2019-06-13 | 2019-07-26 | 京东方科技集团股份有限公司 | A kind of display panel and preparation method thereof and display equipment |
| CN110058470B (en) * | 2019-06-13 | 2022-04-01 | 京东方科技集团股份有限公司 | Display panel, manufacturing method thereof and display device |
| CN110109310A (en) * | 2019-06-25 | 2019-08-09 | 京东方科技集团股份有限公司 | A kind of display panel and preparation method thereof |
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| Publication number | Publication date |
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| CN101364011B (en) | 2010-07-14 |
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