WO2014075322A1 - 液晶分子预倾角的设置方法 - Google Patents
液晶分子预倾角的设置方法 Download PDFInfo
- Publication number
- WO2014075322A1 WO2014075322A1 PCT/CN2012/084856 CN2012084856W WO2014075322A1 WO 2014075322 A1 WO2014075322 A1 WO 2014075322A1 CN 2012084856 W CN2012084856 W CN 2012084856W WO 2014075322 A1 WO2014075322 A1 WO 2014075322A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- liquid crystal
- small
- crystal molecules
- control circuit
- ultraviolet light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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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
- G02F1/133753—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
-
- 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
-
- 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
- G02F1/133753—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
- G02F1/133761—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle with different pretilt angles
Definitions
- the present invention relates to a method of fabricating a liquid crystal display device, and more particularly to a method of setting a pretilt angle of liquid crystal molecules in a liquid crystal display device. Background technique
- the liquid crystal display device is a display device including a liquid crystal material sealed between two opposite substrates, and the display device uses electrical excitation to perform light switching by photoelectric anisotropy of liquid crystal molecules.
- the liquid crystal molecules have refractive index anisotropy, and the control of the brightness is realized by controlling the difference in light intensity transmitted by the liquid crystal molecules by applying a voltage to the liquid crystal molecules and thereby redirecting the axis of the refractive index anisotropy.
- the quality of a liquid crystal display device depends first on its liquid crystal panel, because the quality of the liquid crystal panel directly affects the viewing effect of the screen, and the liquid crystal panel accounts for more than half of the cost of the whole machine, which is the main factor affecting the cost of the liquid crystal display device.
- the liquid crystal panel is mainly composed of two glass substrates and a liquid crystal material provided on the glass substrate, and does not emit light by itself, and needs a backlight to be irradiated.
- TFTs thin film transistors
- a voltage is applied to liquid crystal molecules and ultraviolet rays are irradiated onto the liquid crystal molecules, it is actually usual to apply a TFT turn-on voltage to each of the gate bus lines and apply the data to each data bus.
- the liquid crystal molecules are exposed to ultraviolet light irradiation, thereby completing the setting of the liquid crystal molecule pretilt angle.
- the setting of the pretilt angle of the liquid crystal molecules is performed under irradiation of ultraviolet rays, and the liquid crystal material in the liquid crystal cell contains a polymer monomer which is photopolymerizable or thermally polymerizable.
- a driving voltage is applied to the liquid crystal material containing the photopolymerizable or thermally polymerizable polymer monomer (the driving voltage is only for the liquid crystal molecules to be slightly deflected, and the liquid crystal molecules are set in advance)
- the liquid crystal cell is irradiated with light having a strong ultraviolet component.
- the liquid crystal material may be irradiated with low-intensity ultraviolet rays for a long time to sufficiently polymerize the photopolymerizable or thermally polymerizable polymer monomer, but in this way, the liquid crystal display device will undoubtedly be lowered.
- FIG. 1 is a schematic diagram of a liquid crystal molecule pretilt angle setting in a liquid crystal material containing a photopolymer or a thermally polymerizable polymer monomer, in which liquid crystal molecules 100 are vertically arranged between two substrates 300 without applying a driving voltage, when applied When the voltage is driven, the liquid crystal molecules 100 are deflected by 0-90.
- a pretilt angle is set to the liquid crystal molecules 100, and the pretilt angle is generally controlled at 2. within.
- a liquid crystal material containing the photopolymer or the thermally polymerizable polymer monomer 200 is applied with ultraviolet light or ultraviolet light 400 to irradiate the photopolymerizable or thermally polymerizable polymer.
- the monomer 200 is polymerized, whereby the pretilt angle is set to define the alignment direction of the liquid crystal molecules 100.
- Fig. 2 is a schematic diagram showing the change of image residual rate with the amount of ultraviolet radiation. It can be seen from the figure that the residual ratio of the image is related to the amount of ultraviolet light.
- the amount of irradiation is small, the polymer monomer cannot be sufficiently polymerized and cannot form a strong one. The crosslinked structure, so the probability of causing image sticking increases.
- Figure 3 is a schematic diagram of several existing ultraviolet irradiation schemes, including: 1. Applying a driving voltage while irradiating light; 2. Applying a driving voltage while irradiating the light, then canceling the driving voltage and irradiating only the irradiation light; First, the light is irradiated, and then the driving voltage is applied while irradiating the light; 4. The light is irradiated first, and then the driving voltage is applied while the irradiation of the light is applied, and the driving voltage is canceled.
- a liquid crystal material containing a light- or thermally polymerizable polymer monomer when irradiated with light having a certain intensity of ultraviolet light or ultraviolet light, a voltage for deflecting the liquid crystal molecules to a pretilt angle is applied, and then other light intensity is used.
- the liquid crystal cell is irradiated with ultraviolet light or ultraviolet light.
- the liquid crystal molecules deviate from the pretilt angle because there is no external driving, and the limitation of the liquid crystal molecules by the polymerized partial polymer at this time brings the region.
- the difference in transmittance of the liquid crystal material forms a different contrast.
- the liquid crystal material is irradiated with ultraviolet light or ultraviolet light without a voltage of the liquid crystal molecules being deflected or without applying a voltage. . ⁇
- the number of the above steps is not less than two.
- a disadvantage of the above method is that there are many steps for polymerizing the photopolymerizable or thermally polymerizable polymer monomer in the liquid crystal material, and each step has different requirements for the composition and intensity of the irradiated light, and for each There is a clear boundary between the steps, and the setting of each parameter between the steps is different, for example: the time at which the driving voltage is applied between steps, the change in light intensity between steps or the change in the intensity of ultraviolet light between steps.
- the pretilt angle of the liquid crystal molecules changes, if the photopolymerizable or photopolymerizable polymer monomer is completely polymerized, the liquid crystal If the pretilt angle of the molecule changes greatly, different transmittances will be formed in this region, resulting in abnormal contrast.
- the ultraviolet light containing the same intensity or ultraviolet light is irradiated for a long time to contain the above-mentioned light or heat.
- the liquid crystal material of the polymerized polymer monomer also reduces the production efficiency of the liquid crystal display.
- the liquid crystal material containing the photopolymerizable or thermally polymerizable polymer monomer when the liquid crystal material containing the photopolymerizable or thermally polymerizable polymer monomer is irradiated with ultraviolet light or ultraviolet rays, light is present in the liquid crystal material of the light shielding portion which is not irradiated with ultraviolet rays due to the presence of the light shielding portion in the TFT substrate. Or the thermally polymerized polymer monomer may not be completely polymerized. With the migration of the liquid crystal material, this part of the liquid crystal may appear in the display region, which is a partially crosslinked structure in which the photopolymer or the thermally polymerizable polymer monomer is not completely polymerized. Image sticking is formed in the normal display mode. Summary of the invention
- the present invention provides a method for setting a pretilt angle of a liquid crystal molecule, comprising the following steps:
- Step 1 providing a liquid crystal material, a CF substrate, and a TFT substrate;
- Step 2 the CF substrate is disposed in parallel with the TFT substrate to form a receiving gap, and a liquid crystal material is filled in the receiving gap to form a liquid crystal cell;
- Step 3 providing a driving control circuit capable of generating a plurality of driving voltages, and electrically connecting the driving control circuit to the TFT substrate;
- Step 4 providing a small oscillating device and a variable intensity ultraviolet light source, placing the liquid crystal cell on the small vibration device;
- Step 5 starting a small amplitude oscillating device, causing the liquid crystal cell to generate small amplitude oscillation, turning on the driving control circuit, and driving the liquid crystal material with a plurality of driving voltages.
- the liquid crystal cell is irradiated with ultraviolet rays of different intensity by the ultraviolet light source;
- Step 6 Perform the step 5 operation of the liquid crystal cell not less than one time to complete the setting of the pretilt angle.
- a light shielding pattern is disposed on the TFT substrate.
- the liquid crystal material comprises: a photopolymerizable or thermally polymerizable polymer monomer and a liquid crystal molecule, and the photopolymerizable or thermally polymerizable polymer monomer is polymerized under irradiation of an ultraviolet light source.
- the driving control circuit drives deflection of liquid crystal molecules in the liquid crystal material, and the liquid crystal molecules are perpendicular to the CF substrate or the TFT substrate when the driving circuit has no driving voltage.
- the small oscillating device in the step 5 causes the liquid crystal cell to generate a small oscillation, and the intensity of the small oscillation is insufficient to change the deflection angle of the liquid crystal molecules, and is not enough to cause the liquid crystal molecules to generate a large flow.
- the drive control circuit generates a high, low level that causes the liquid crystal molecules to deflect at a small angle that is insufficient to cause the liquid crystal molecules to deflect at a small angle.
- the ultraviolet light source generates first, second, third, and fourth illumination intensities, the first illumination intensity > the second illumination intensity > the third illumination intensity > the fourth illumination intensity.
- the step 5 includes the following steps:
- Step 501 Start a small amplitude oscillating device, so that the liquid crystal cell generates a small amplitude oscillation.
- Step 502 During the first time period, the conduction driving control circuit outputs a high level, so that the liquid crystal molecules are deflected by a small angle, and the first illumination is used. The intensity of the ultraviolet light source illuminates the liquid crystal cell to start polymerization of the photopolymerizable or thermally polymerizable polymer monomer;
- Step 503 In the second time period, the conduction driving control circuit outputs a high level, and irradiates the liquid crystal cell with the ultraviolet light source of the second light intensity;
- Step 504 In the third time period, the conduction driving control circuit outputs a low level, and irradiates the liquid crystal cell with the ultraviolet light source of the fourth light intensity;
- Step 505 Disconnect the driving control circuit during the fourth time period, and irradiate the liquid crystal cell with the ultraviolet light source of the third light intensity, so that the photopolymerizable or thermally polymerizable polymer monomer is fully polymerized.
- the invention also provides a method for setting a pretilt angle of a liquid crystal molecule, comprising the following steps: Step 1. providing a liquid crystal material, a CF substrate and a TFT substrate;
- Step 2 the CF substrate and the TFT substrate are arranged in parallel to form a receiving gap, and a liquid crystal material is filled in the receiving gap to form a liquid crystal cell;
- Step 3 providing a driving control circuit capable of generating a plurality of driving voltages, and electrically connecting the driving control circuit to the TFT substrate;
- Step 4 providing a small oscillating device and a variable intensity ultraviolet light source, and placing the liquid crystal cell on the small vibration device;
- Step 5 Start a small amplitude oscillating device to make the liquid crystal cell generate small amplitude oscillation, turn on the driving control circuit, and drive the liquid crystal material by using various driving voltages.
- the liquid crystal cell is irradiated with ultraviolet rays of different intensity by the ultraviolet light source;
- Step 6 Perform the step 5 operation of the liquid crystal cell not less than once, and complete the setting of the pretilt angle;
- the TFT substrate is provided with a light shielding pattern
- the liquid crystal material comprises: a photopolymerizable or thermally polymerizable polymer monomer and a liquid crystal molecule, wherein the photopolymerizable or thermally polymerizable polymer monomer is polymerized under irradiation of an ultraviolet light source;
- the driving control circuit drives liquid crystal molecules in the liquid crystal material to be deflected, and the liquid crystal molecules are perpendicular to the CF substrate or the TFT substrate when the driving circuit has no driving voltage;
- the small oscillating device in the step 5 causes the liquid crystal cell to generate a small oscillation, and the intensity of the small oscillation is insufficient to change the deflection angle of the liquid crystal molecules, and is not enough to cause a large flow of the liquid crystal molecules;
- the driving control circuit generates a high level, a low level, the high level causes a liquid crystal molecule to generate a small angle of deflection, the low level is insufficient to cause a liquid crystal molecule to generate a small angle deflection;
- the ultraviolet light source generates First, second, third, and fourth illumination intensities, the first illumination intensity > the second illumination intensity > the third illumination intensity > the fourth illumination intensity;
- the step 5 includes the following steps:
- Step 501 Start a small amplitude oscillating device, so that the liquid crystal cell generates a small amplitude oscillation.
- Step 502 During the first time period, the conduction driving control circuit outputs a high level, so that the liquid crystal molecules generate a small angle deflection, and use the first The ultraviolet light source of the light intensity illuminates the liquid crystal cell to start polymerization of the photopolymerizable or thermally polymerizable polymer monomer;
- Step 503 In the second time period, the conduction driving control circuit outputs a high level, and irradiates the liquid crystal cell with the ultraviolet light source of the second light intensity;
- Step 504 In the third time period, the conduction driving control circuit outputs a low level, and irradiates the liquid crystal cell with the ultraviolet light source of the fourth light intensity;
- Step 505 Disconnect the driving control circuit in the fourth period of time, and irradiate the liquid crystal cell with the ultraviolet light source of the third light intensity, so that the photopolymerizable or thermally polymerizable polymer monomer is sufficiently polymerized;
- Advantageous Effects of the Invention The method for setting the pretilt angle of the liquid crystal molecules of the present invention is irradiated with ultraviolet light of different light intensities at different time periods, and the liquid crystal molecules are driven by different driving voltages, and the liquid crystal cell is made by using a small amplitude oscillation device.
- Figure 1 is a schematic diagram showing the pretilt angle setting of liquid crystal molecules in a liquid crystal material containing a photopolymerizable or thermally polymerizable polymer monomer;
- Figure 2 is a schematic diagram showing the change of image residual rate with the amount of ultraviolet irradiation
- Figure 3 is a schematic view of several existing ultraviolet irradiation schemes
- FIG. 4 is a flow chart showing a method for setting a pretilt angle of a liquid crystal molecule according to the present invention
- FIG. 5 is a schematic view showing the output level of the drive control circuit in time in step 5 of the method for setting the pretilt angle of the liquid crystal molecules of the present invention
- Fig. 6 is a view showing the change of the irradiation intensity of the ultraviolet light source with time in the step 5 of the method for setting the pretilt angle of the liquid crystal molecules of the present invention.
- the present invention provides a method for setting a pretilt angle of a liquid crystal molecule, which comprises the following steps:
- Step 1 providing a liquid crystal material, a CF (color filter, color filter) substrate, and a TFT (Thin Film Transistor, thin film field effect transistor) substrate;
- the TFT substrate is provided with a light shielding pattern, and the liquid crystal material comprises: light or thermal polymerization
- the polymer monomer and the liquid crystal molecules are polymerized by the ultraviolet light source, and the stronger the irradiation intensity, the faster the polymerization speed.
- Step 2 the CF substrate is disposed in parallel with the TFT substrate to form a receiving gap, and a liquid crystal material is filled in the receiving gap to form a liquid crystal cell;
- Step 3 providing a driving control circuit capable of generating a plurality of driving voltages, and electrically connecting the driving control circuit to the TFT substrate;
- the driving control circuit drives deflection of liquid crystal molecules in the liquid crystal material, and the liquid crystal molecules are perpendicular to the CF substrate or the TFT substrate when the driving circuit has no driving voltage.
- the driving control circuit generates high and low levels, and the driving control circuit is continuous from a high level to a low level, and the high level causes the liquid crystal molecules to generate a small angle. Deflection, the low level is insufficient to cause liquid crystal molecules to deflect at a small angle.
- Step 4 providing a small oscillating device and a variable intensity ultraviolet light source, and placing the liquid crystal cell on the small vibration device;
- the small oscillating device causes the liquid crystal cell to generate a small oscillation, and the intensity of the small oscillation is insufficient to change the deflection angle of the liquid crystal molecules, and is not sufficient to cause a large flow of the liquid crystal molecules.
- the ultraviolet light source generates first, second, third, and fourth illumination intensities El, E2, E3, and E4, and the illumination intensity El > ⁇ 2 illumination intensity E2 > ⁇ three illumination intensity £ > fourth illumination Strength E4.
- Step 5 Start a small amplitude oscillating device to make the liquid crystal cell generate small amplitude oscillation, turn on the driving control circuit, and drive the liquid crystal material by using various driving voltages.
- the liquid crystal cell is irradiated with ultraviolet rays of different intensity by the ultraviolet light source;
- the step 5 includes the following steps:
- Step 501 starting a small amplitude oscillation device, so that the liquid crystal cell generates a small amplitude oscillation; Step 502, in the first time period (tl), turning on the driving control circuit to output a high level
- the liquid crystal molecules rapidly deflect at a small angle, and the angle of the deflection reaches the pretilt angle requirement.
- the first time period ( tl ) is controlled in a relatively short period of time, which can prevent the photopolymerizable or thermally polymerized polymer from being over-cured due to excessive illumination, and losing its own Elasticity, which in turn ensures the optical properties of the liquid crystal molecules.
- Step 503 In the second time period (t2-tl), the conduction driving control circuit outputs a high level U1, and irradiates the liquid crystal cell with the ultraviolet light source of the second light intensity E2;
- Illuminating the liquid crystal cell with a weak second light intensity E2 ensuring In the case where the photopolymer or the thermally polymerizable polymer monomer is sufficiently polymerized, the photocurable or thermally polymerizable polymer is prevented from being over-cured.
- Step 504 In the third time period (t3-t2), the conduction driving control circuit outputs a low level U2, and irradiates the liquid crystal cell with the ultraviolet light source of the fourth light intensity E4;
- the polymerization of the polymerizable or thermally polymerizable polymer in the U2 state is carried out for a longer period of time (the third period) to further ensure sufficient polymerization.
- Step 505 In the fourth time period (t4-t3), disconnect the driving control circuit, and illuminate the liquid crystal cell with the ultraviolet light source of the third light intensity E3, so that the photopolymer or the photopolymerizable polymer monomer is sufficient polymerization.
- Step 6 Perform the step 5 operation of the liquid crystal cell not less than one time to complete the setting of the pretilt angle.
- step 5 The operation of step 5 is repeated in this step 6, and the number of repetitions is set according to the actual setting.
- the small amplitude oscillation device is used to cause the liquid crystal cell to oscillate a small amplitude, so that the liquid crystal molecules in the liquid crystal cell generate a small amplitude flow, so that the light or thermal polymerization under the light shielding portion of the TFT substrate is achieved.
- the monomer will flow to the non-shielding portion in a small amount and be polymerized by irradiation with an ultraviolet light source, thereby ensuring sufficient polymerization of the photopolymer or the thermally polymerizable polymer monomer to prevent image sticking.
- the present invention provides a method for setting a pretilt angle of a liquid crystal molecule, which is irradiated with ultraviolet light of different light intensities at different times, and drives liquid crystal molecules with different driving voltages, and uses a small amplitude oscillation device.
- the liquid crystal cell is caused to oscillate with a small amplitude, and all liquid crystal molecules are irradiated with ultraviolet rays as much as possible, so that the photopolymerizable or thermally polymerizable polymer monomer is sufficiently polymerized to eliminate image sticking phenomenon, and the liquid crystal molecules have a uniform pretilt angle, so that The liquid crystal material has a uniform light transmittance, ensures the contrast of the liquid crystal display, improves the performance of the liquid crystal display, and improves the production efficiency of the liquid crystal display.
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112012007133.6T DE112012007133B4 (de) | 2012-11-14 | 2012-11-20 | Verfahren zum Einstellen des Vorkippwinkels von Flüssigkristallmolekülen |
| US13/807,715 US8953140B2 (en) | 2012-11-14 | 2012-11-20 | Method for setting pre-tilt angle of liquid crystal molecule |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210457741.3 | 2012-11-14 | ||
| CN201210457741.3A CN102902106B (zh) | 2012-11-14 | 2012-11-14 | 液晶分子预倾角的设置方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014075322A1 true WO2014075322A1 (zh) | 2014-05-22 |
Family
ID=47574428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2012/084856 Ceased WO2014075322A1 (zh) | 2012-11-14 | 2012-11-20 | 液晶分子预倾角的设置方法 |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN102902106B (zh) |
| DE (1) | DE112012007133B4 (zh) |
| WO (1) | WO2014075322A1 (zh) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103309074B (zh) | 2013-05-24 | 2016-02-24 | 京东方科技集团股份有限公司 | 一种pdlc液晶面板的制备方法 |
| CN112327531B (zh) * | 2020-12-02 | 2022-09-27 | 深圳市华星光电半导体显示技术有限公司 | 减小液晶显示面板的Ton的方法及液晶显示面板 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5912717A (en) * | 1996-02-05 | 1999-06-15 | Stanley Electric Co., Ltd. | Homeotropic liquid crystal display and its manufacture |
| CN1564962A (zh) * | 2001-10-02 | 2005-01-12 | 富士通显示技术株式会社 | 液晶显示器件及其制造方法 |
| CN101498866A (zh) * | 2008-02-01 | 2009-08-05 | 深圳富泰宏精密工业有限公司 | 液晶光学配向装置及方法 |
| CN102289107A (zh) * | 2011-07-01 | 2011-12-21 | 深圳市华星光电技术有限公司 | 液晶面板预倾角的制作装置和方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3307632B2 (ja) | 2001-03-15 | 2002-07-24 | 松下電器産業株式会社 | 液晶表示素子とその製造方法 |
-
2012
- 2012-11-14 CN CN201210457741.3A patent/CN102902106B/zh not_active Expired - Fee Related
- 2012-11-20 DE DE112012007133.6T patent/DE112012007133B4/de not_active Expired - Fee Related
- 2012-11-20 WO PCT/CN2012/084856 patent/WO2014075322A1/zh not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5912717A (en) * | 1996-02-05 | 1999-06-15 | Stanley Electric Co., Ltd. | Homeotropic liquid crystal display and its manufacture |
| CN1564962A (zh) * | 2001-10-02 | 2005-01-12 | 富士通显示技术株式会社 | 液晶显示器件及其制造方法 |
| CN101498866A (zh) * | 2008-02-01 | 2009-08-05 | 深圳富泰宏精密工业有限公司 | 液晶光学配向装置及方法 |
| CN102289107A (zh) * | 2011-07-01 | 2011-12-21 | 深圳市华星光电技术有限公司 | 液晶面板预倾角的制作装置和方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102902106B (zh) | 2014-11-19 |
| DE112012007133T5 (de) | 2015-08-13 |
| DE112012007133B4 (de) | 2019-04-25 |
| CN102902106A (zh) | 2013-01-30 |
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