WO2005031447A1 - 液晶表示素子 - Google Patents
液晶表示素子 Download PDFInfo
- Publication number
- WO2005031447A1 WO2005031447A1 PCT/JP2004/013317 JP2004013317W WO2005031447A1 WO 2005031447 A1 WO2005031447 A1 WO 2005031447A1 JP 2004013317 W JP2004013317 W JP 2004013317W WO 2005031447 A1 WO2005031447 A1 WO 2005031447A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- liquid crystal
- crystal display
- display device
- alignment
- substrates
- Prior art date
Links
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
-
- 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
- G02F1/133757—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 alignment orientations
-
- 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
-
- 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
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/14—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 asymmetric
Definitions
- the present invention relates to a liquid crystal display device, and more particularly to a liquid crystal display device having a high transmittance and a wide viewing angle.
- Liquid crystal display elements are used as displays for notebook computers, desktop computers, and the like, because of their thin, space-saving and low power consumption characteristics. Furthermore, with the recent progress in large-screen liquid crystal panel manufacturing technology, CRTs have been dominant in the past, and liquid crystal display elements have come to be used as displays for televisions! With the increase in the screen size of such a liquid crystal display device, a display method different from the TN display method was used to improve the viewing angle characteristics, which were insufficient with the conventionally used twisted nematic (TN) display method. A liquid crystal display device using the same has been proposed, and is used instead of the TN display method as a display method for a large liquid crystal television.
- TN twisted nematic
- Patent Document 2 Japanese Patent Application Laid-Open No. 11 242225
- Patent Document 3 JP-A-63-106624
- Patent Document 4 JP-A-8-304828
- Non-Patent Document l de Boer et al., Proc. International Display Workshop 0 2, LCT4-3., P. 69
- Non-Patent Document 2 T. Hashimoto et al., Society of Information Display '95 Digest, 41-4, p. 877
- the specific reason why the IPS method has a lower white transmittance than the TN method is that, as the name implies, the IPS method converts the in-plane electric field component on the substrate surface onto one side of the substrate.
- a horizontal electric field (with no potential difference) is generated. This is because it does not basically contribute to the white transmittance.
- the MVA method has a lower white transmittance than the TN method is that one pixel is divided into a plurality of pixel domains with different liquid crystal molecule orientations (generally, four divisions are used. This is because the divided domain boundary region does not contribute to the white transmittance. Since this pixel division is essential in principle to improve the viewing angle characteristics in the MVA method using the vertical alignment of liquid crystal, the above-mentioned decrease in white transmittance at the domain boundary cannot be avoided. Become a thing.
- the former IPS method uses horizontal alignment, so that good viewing angle characteristics can be obtained without performing multi-domain shading.
- a multi-domain structure generally, a method of dividing the electrode into two by using a modified electrode shape
- the domain boundary region causes a decrease in white transmittance as in the MVA method.
- the TN multi-domain method requires the multi-domain of the liquid crystal molecule alignment state (pretilt) itself on the alignment control layer provided on the substrate surface sandwiching the liquid crystal layer. This means that the mass productivity is extremely poor.
- a method of multi-domain alignment of a liquid crystal alignment state on a substrate surface in the proposed TN method for example, a rubbing treatment and a resist coating 'patterning' as a surface alignment treatment disclosed in Patent Document 3 described above are disclosed.
- Etc. both of which require complex additional processes.
- the vertical force on the substrate to be irradiated in order to generate and control the pretilt, the vertical force on the substrate to be irradiated and the force on the same substrate Since a total of two light irradiations from oblique directions are required, it is pointed out that eight light irradiations are required using four types of masks, for example, to create the same four-domain pixel as the MVA method (For example, Non-Patent Document 2 described above).
- damage or contamination of the liquid crystal alignment film due to resist coating / stripping can be considered, which may cause deterioration in display image quality.
- An object of the present invention is to provide a liquid crystal display element that can be manufactured more easily in view of the above circumstances and is suitable for liquid crystal television applications that achieves both high pixel transmittance and wide viewing angle display characteristics.
- the liquid crystal display device has a liquid crystal alignment regulating layer in which a plurality of closed regions having a liquid crystal alignment regulating direction different from the liquid crystal alignment regulating direction of the liquid crystal display device are arranged. And distinguish between head and tail.
- a plurality of higher-level regions (domains) around the plurality of closed regions, in which liquid crystal direction regulating directions are different from each other, are further arranged.
- liquid crystal display device In the liquid crystal display device according to the above [1] or [2], at least one of the liquid crystal orientation control processes in the plurality of different directions directly emits light capable of giving a chemical reaction on the substrate surface. It is characterized in that the irradiation is performed as linearly polarized light.
- liquid crystal display device according to any one of [1] to [5], wherein the liquid crystal layer is made of a liquid crystal material containing an asymmetric molecule as a composition component.
- the present invention has been made in view of the above-mentioned object by increasing the number of steps required for multi-domain alignment of the liquid crystal molecule alignment state (pretilt) itself on the alignment control layer, which is required for TN-type multi-domain alignment. Achieved by means other than mask rubbing or simple optical alignment with the problem of alignment film damage
- the present invention uses an alignment control layer provided with an alignment pattern having appropriate two-dimensional symmetry, resulting in a high pixel transmittance of a TN system and a wide viewing angle display by multi-domain mirroring. It is possible to provide a liquid crystal display element having both characteristics.
- tilt in horizontal alignment is caused by breaking of head-to-tail symmetry in a plane along the alignment control direction. Conceivable. Anything that causes the symmetry breaking that causes this tilt can be basically good, for example, it should be a symmetry breaking of the in-plane alignment pattern. The principle experiment performed to confirm this is described below.
- tilt occurs when the probe is scanned in one direction, whereas tilt does not occur in symmetric reciprocal scanning.
- a specific in-plane orientation pattern was created by the latter symmetrical reciprocal scanning.
- polyimide was uniformly spin-coated, heated, and imidized on the substrate surface, and then the polyimide surface was uniformly symmetrically reciprocally scanned with an AFM probe along a specific direction. In the process so far, the liquid crystal molecules are uniaxially aligned at a tilt of 0 on the polyimide alignment control layer.
- FIG. 2 a plurality of sets of substrates 2 in which the in-plane orientation pattern 1 of FIG. 1 is arranged at square lattice points as shown in FIG. 2 are prepared.
- An empty cell was fabricated by assembling the cells up and down so that they became anti-parallel, and a nematic liquid crystal (5CB) was enclosed.
- Figure 3 shows the results of measuring the tilt of this liquid crystal cell by the crystal rotation method.
- the horizontal axis is the number of triangular closed area patterns arranged on one side of a 100-m square area on which an orientation pattern is formed, and the vertical axis is three times the tilt measurement value.
- FIG. 1 is a schematic view showing a scanning pattern of a probe of an element used in a principle experiment of the present invention.
- FIG. 2 is a diagram showing an arrangement of scanning patterns of elements used in a principle experiment of the present invention.
- FIG. 3 is a view showing a measurement result of a pretilt of an element used in a principle experiment of the present invention.
- FIG. 4 is a diagram showing a configuration of a liquid crystal display device showing a first embodiment of the present invention.
- FIG. 5 is a schematic view showing a photomask used in a first embodiment of the present invention and an alignment pattern produced by the photomask.
- FIG. 6 is a schematic diagram corresponding to FIG. 5, showing a photomask used on the counter substrate side of the first embodiment of the present invention, and an alignment pattern formed by the photomask.
- FIG. 7 is a schematic view showing a photomask used in a comparative example of the present invention and an alignment pattern produced using the photomask.
- FIG. 8 A photomask corresponding to FIG. 7 and used on the counter substrate side of a comparative example of the present invention and its photomask. It is a schematic diagram which shows the orientation pattern produced by this.
- FIG. 9 is a schematic view showing a photomask used in a third example of the present invention.
- liquid crystal display element suitable for liquid crystal television applications, which achieves both a wide viewing angle display characteristic by multi-domain display and a high transmittance of a TN mode, through a simpler manufacturing process.
- the liquid crystal display element of the present invention includes a pair of transparent substrates, a liquid crystal layer disposed between the pair of substrates, and at least one of the liquid crystal layer and the pair of substrates.
- an alignment layer in which a plurality of second layer regions having a liquid crystal easy axis direction different from the liquid crystal easy axis direction of the first layer region are arranged. Therefore, it is possible to achieve both a wide viewing angle display characteristic by the multi-domain method and a high transmittance of the TN method by a simple manufacturing method.
- FIG. 4 is a diagram showing a configuration of a liquid crystal display device according to the first embodiment of the present invention.
- 11 is a substrate (SUB1)
- 12 is a substrate (SUB2)
- 13 is a transparent electrode (ELI)
- 14 is a transparent electrode (EL2)
- 15 is an alignment layer (AL1)
- 16 is an alignment layer (AL1).
- AL2) and 17 are polarizing plates (POLl)
- 18 is a polarizing plate (POL2)
- 19 is a liquid crystal alignment control direction (ALD1)
- 20 is a liquid crystal alignment control direction (ALD2)
- 21 is a liquid crystal layer (LCL).
- the substrate 11 and the substrate 12 two transparent glass substrates having a thickness of 1.1 mm and a polished surface were used.
- transparent electrodes 13 (EL1) and 14 (EL2) were formed as transparent conductive layers made of ITO (indium tin oxide), respectively.
- ITO indium tin oxide
- the transparent electrodes 13 and 14 of the respective substrates 11 and 12 as a diamine conjugate, [didirection 1] containing a diazobenzene group and 4,4 ′ diaminodiphenylmethane were mixed in an equimolar ratio.
- the linearly polarized ultraviolet light obtained by using a Brewster's angle polarizing element with a mercury lamp as the ultraviolet light source was almost perpendicular to the substrate surface, and a square as shown in Figs. 5 (a) and 5 (b).
- the substrate 11 was irradiated twice with an irradiation light intensity of 10 mWZcm 2 through two types of photomasks 31 and 32 (black portions are opaque portions 31A and 32A) having a checkerboard-like pattern.
- one triangle shown in each quarter domain (region) is a triangle closed region pattern formed in this domain as shown in FIG. This is shown as a representative in order to indicate the direction of the triangle. Actually, a large number of such triangular closed area patterns are arranged at a specific density in each domain.
- the first time is to irradiate ultraviolet light linearly polarized in the diagonal direction AA ′ of this figure using the mask of FIG.
- the second time uses the mask shown in Fig. 5 (b).
- the direction of the linearly polarized light is rotated by 90 degrees, and ultraviolet light linearly polarized in the diagonal direction BB ′ in FIG. 5 (b) is irradiated.
- the irradiation of the polarized ultraviolet light was perpendicularly incident on the surface of the substrate 11 so that the pretilt angle of the liquid crystal alignment provided by the irradiation was approximately 0 degrees.
- the irradiation pattern in which the direction of the irradiated linearly polarized light was orthogonal to the background in the triangular closed region pattern was obtained by the two irradiations of linearly polarized ultraviolet light.
- an alignment control layer 15 (AL1) formed in each domain in a different direction and having an alignment control pattern in a direction orthogonal to the irradiation linearly polarized light was obtained. Due to the effect of the obtained orientation pattern, for example, in the lower right domain 43 of the four divided domains 41 to 44 in FIG.
- the pre-tilt occurs in the direction indicated by the liquid crystal orientation control direction (arrow) 47 due to the broken symmetry (the arrow indicates the direction in which the liquid crystal orientation occurs and the substrate surface force also rises).
- the liquid crystal alignment regulating directions (arrows) in Fig. 5 (c) 45, 46 , 48 the pretilt occurs in the directions respectively indicated.
- the direction of the line indicated by the arrow shown here is the liquid crystal orientation control direction (in-plane direction of 45, 135, -135, and -145 degrees), and the end with the arrowhead raises the substrate surface force by several degrees ( (Tilted).
- the photomasks 51 and 52 black portions are opaque portions 51A and 52A shown in FIGS.
- a patterned light-regulating alignment control layer 16 (AL2) having similar four-divided domains 61-64 was prepared, and a pair of these substrates 11 and 12 were viewed from above with an alignment pattern.
- FIGS. 5 and 6 are not limited to this example, but may be the same as those in the present embodiment as long as they have the same pretilt effect and the viewing angle enlarging effect by multi-domain shading. Similarly, the effects of the present invention can be obtained.
- the two substrates 11 and 12 were made to face each other with the surfaces having liquid crystal alignment ability facing each other, and a spacer made of dispersed spherical polymer beads and a sealant at the periphery were separated.
- the cell was assembled with intervention.
- a nematic liquid crystal composition ZLI 4535 manufactured by Merck & Co. (dielectric anisotropy ⁇ is positive and has a value of 14.8, refractive index anisotropy)
- the liquid crystal panel was obtained by injecting a compound having a property ⁇ of 0.0865) 21 in a vacuum and sealing with a sealing material made of an ultraviolet curable resin.
- the thickness of the liquid crystal layer 21 was adjusted to 6.4 / zm when the liquid crystal was sealed with the above spacer. Therefore, the retardation (And) of the liquid crystal display device of this embodiment is 0.5 ⁇ m.
- this panel is sandwiched between two polarizing plates 17 (POL1) and 18 (POL2) (G1220DU manufactured by Nitto Denko Corporation), and the polarization transmission axis of one polarizing plate 17 (POL1) is set as described above.
- the diagonal direction (A or B-B ') of the four-divided pattern was almost parallel to the other, and the other polarizing plate 18 (POL 2) was arranged orthogonal to the diagonal direction.
- the same ultraviolet irradiation conditions were applied to the entire surface of the substrate under the same conditions as one of the above-mentioned four domains.
- a liquid crystal cell was prepared by enclosing the same liquid crystal composition ZLI-4535 as described above between the same pair of substrates on which the alignment control layer was formed, and the pretilt of this liquid crystal cell was measured by the crystal rotation method.
- the liquid crystal display device of the first embodiment had a normally white TN display device configuration, and a high light transmission state (so-called white display) was obtained when no voltage was applied.
- a sufficiently low light transmission state (so-called black display) was obtained by applying a 5 Vpp AC voltage having a frequency of 1 kHz between the transparent electrodes 13 (EL1) and 14 (EL2).
- the viewing angle characteristics of the liquid crystal display element of this example were measured using a liquid crystal viewing angle measuring device CV-1 000 manufactured by Minolta, the contrast ratio was 10: 1 or more over the entire range of 140 degrees vertically and 140 degrees horizontally. And wide viewing angle characteristics without gradation inversion were obtained.
- FIGS. 5A and 5B and FIGS. 6A and 6B are replaced with the photomasks shown in FIGS.
- a liquid crystal display device was manufactured in the same manner as in the first example except that the photomasks 91, 92, 101, and 102 of (a) and (b) were used, and the device was used as a comparative example.
- the liquid crystal is thereby formed.
- the orientation is also the TN orientation due to the horizontal orientation where the pretilt is substantially zero.
- An alignment control layer having an alignment pattern (Fig. 5) is formed only on one substrate side, and the other substrate side has no alignment control layer.
- a liquid crystal display device was manufactured in the same manner as in the first embodiment except that a CB-15 manufactured by the company was used so that the helical pitch length of the composition was about 1Z4 of the cell gap. Example.
- the first embodiment is similar to the first embodiment except that the liquid crystal alignment becomes substantially 90 degrees between the upper and lower substrates when no electric field is applied between the upper and lower substrates due to the action of chirald punting. It was confirmed that the same effect as that described above was obtained.
- a display having the same wide viewing angle characteristics and high uniformity as the first embodiment was obtained by the same viewing angle measurement as in the first embodiment.
- a liquid crystal display element was manufactured in the same manner as in the first example except that the light irradiation was performed, and the third example was obtained.
- the light irradiation only needs to be performed twice per substrate, but the alignment accuracy of each photomask at the time of the two light irradiations is very small in each of the four divided domains. It is required in the order of the size of the triangle closed area pattern (approximately one inch and several meters), and there is a possibility that a defect due to this misalignment may occur.
- the accuracy of mask alignment is improved by the order of the size of the small triangular closed area pattern. It can be greatly relaxed to the order of size (approximately several hundreds of microns).
- the liquid crystal display device of the present invention can be used for a liquid crystal television that achieves both a wide viewing angle display characteristic by multi-domain and a high transmittance of a TN system.
Landscapes
- 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 (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04772999A EP1669797B1 (en) | 2003-09-29 | 2004-09-13 | Liquid crystal display element |
US10/571,559 US7342628B2 (en) | 2003-09-29 | 2004-09-13 | Liquid crystal display device |
DE602004018525T DE602004018525D1 (de) | 2003-09-29 | 2004-09-13 | Flüssigkristall-display-element |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-337800 | 2003-09-29 | ||
JP2003337800A JP3662573B2 (ja) | 2003-09-29 | 2003-09-29 | 液晶表示素子 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005031447A1 true WO2005031447A1 (ja) | 2005-04-07 |
Family
ID=34386135
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/013317 WO2005031447A1 (ja) | 2003-09-29 | 2004-09-13 | 液晶表示素子 |
Country Status (8)
Country | Link |
---|---|
US (1) | US7342628B2 (ja) |
EP (1) | EP1669797B1 (ja) |
JP (1) | JP3662573B2 (ja) |
KR (1) | KR100827580B1 (ja) |
CN (1) | CN100432798C (ja) |
DE (1) | DE602004018525D1 (ja) |
TW (1) | TWI242677B (ja) |
WO (1) | WO2005031447A1 (ja) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI292846B (ja) * | 2000-07-13 | 2008-01-21 | Japan Science & Tech Agency | |
JP2006098784A (ja) * | 2004-09-29 | 2006-04-13 | Toshiba Corp | 視野角制御装置および表示装置 |
EP1921495B1 (en) * | 2005-08-31 | 2013-04-03 | Japan Science and Technology Agency | Liquid crystal display device using nematic liquid crystal |
JP4870436B2 (ja) * | 2006-01-10 | 2012-02-08 | 株式会社 日立ディスプレイズ | 液晶表示装置 |
KR20090103461A (ko) | 2008-03-28 | 2009-10-01 | 삼성전자주식회사 | 액정 표시 장치 |
KR100923052B1 (ko) * | 2008-08-06 | 2009-10-22 | 삼성전자주식회사 | 배향 기판 |
KR20100071141A (ko) * | 2008-12-19 | 2010-06-29 | 삼성전자주식회사 | 표시 기판, 이를 갖는 액정표시장치 및 이의 제조방법 |
KR101612480B1 (ko) * | 2008-12-22 | 2016-04-27 | 삼성디스플레이 주식회사 | 배향기판, 이를 포함하는 액정표시패널 및 배향기판의 제조방법 |
JP5408262B2 (ja) * | 2010-12-10 | 2014-02-05 | 凸版印刷株式会社 | 液晶表示装置 |
KR101812511B1 (ko) * | 2011-06-07 | 2018-01-31 | 삼성디스플레이 주식회사 | 렌즈 패널, 이의제조 방법 및 이를 갖는 표시 장치 |
KR20130057177A (ko) * | 2011-11-23 | 2013-05-31 | 삼성디스플레이 주식회사 | 액정 표시 장치 및 그 제조 방법 |
US9606403B2 (en) * | 2012-10-22 | 2017-03-28 | Nlt Technologies, Ltd. | Liquid crystal display device comprising segmented electrodes and segmented liquid crystal orientations and method for producing the same |
CN114879413B (zh) * | 2022-04-26 | 2023-12-29 | 成都京东方显示科技有限公司 | 一种显示面板和显示装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0618885A (ja) * | 1992-04-13 | 1994-01-28 | Toshiba Corp | 液晶表示素子 |
JPH0772484A (ja) * | 1993-06-29 | 1995-03-17 | Stanley Electric Co Ltd | 液晶表示素子とその製造方法 |
WO2003069400A1 (fr) | 2002-02-15 | 2003-08-21 | Dai Nippon Printing Co., Ltd. | Couche d'alignement, procede de production de couche d'alignement, substrat comportant une couche d'alignement et affichage a cristaux liquides |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100354904B1 (ko) * | 1998-05-19 | 2002-12-26 | 삼성전자 주식회사 | 광시야각액정표시장치 |
KR100490019B1 (ko) * | 2000-06-20 | 2005-05-17 | 인터내셔널 비지네스 머신즈 코포레이션 | 다중 도메인을 갖는 넓은 시야각의 액정 디스플레이와 넓은 시야각의 ips 모드 액정 디스플레이 및 그 제공 방법 |
-
2003
- 2003-09-29 JP JP2003337800A patent/JP3662573B2/ja not_active Expired - Fee Related
-
2004
- 2004-09-13 EP EP04772999A patent/EP1669797B1/en not_active Expired - Fee Related
- 2004-09-13 US US10/571,559 patent/US7342628B2/en not_active Expired - Fee Related
- 2004-09-13 CN CNB2004800282110A patent/CN100432798C/zh not_active Expired - Fee Related
- 2004-09-13 WO PCT/JP2004/013317 patent/WO2005031447A1/ja active Application Filing
- 2004-09-13 DE DE602004018525T patent/DE602004018525D1/de active Active
- 2004-09-13 KR KR1020067005970A patent/KR100827580B1/ko not_active IP Right Cessation
- 2004-09-16 TW TW093127996A patent/TWI242677B/zh not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0618885A (ja) * | 1992-04-13 | 1994-01-28 | Toshiba Corp | 液晶表示素子 |
JPH0772484A (ja) * | 1993-06-29 | 1995-03-17 | Stanley Electric Co Ltd | 液晶表示素子とその製造方法 |
WO2003069400A1 (fr) | 2002-02-15 | 2003-08-21 | Dai Nippon Printing Co., Ltd. | Couche d'alignement, procede de production de couche d'alignement, substrat comportant une couche d'alignement et affichage a cristaux liquides |
Non-Patent Citations (1)
Title |
---|
See also references of EP1669797A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP1669797A1 (en) | 2006-06-14 |
DE602004018525D1 (de) | 2009-01-29 |
EP1669797A4 (en) | 2006-09-20 |
US7342628B2 (en) | 2008-03-11 |
EP1669797B1 (en) | 2008-12-17 |
JP2005106972A (ja) | 2005-04-21 |
JP3662573B2 (ja) | 2005-06-22 |
CN1860408A (zh) | 2006-11-08 |
US20070030429A1 (en) | 2007-02-08 |
TW200521573A (en) | 2005-07-01 |
KR100827580B1 (ko) | 2008-05-07 |
CN100432798C (zh) | 2008-11-12 |
KR20060125708A (ko) | 2006-12-06 |
TWI242677B (en) | 2005-11-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5150409B2 (ja) | 液晶表示装置及びその製造方法 | |
JP4504665B2 (ja) | 液晶表示装置およびその製造方法 | |
JP6317582B2 (ja) | 液晶ディスプレイおよびその製造方法 | |
US7932980B2 (en) | Liquid crystal display device having patterned electrodes for repetitive divided horizontal electric field and fringing electric field | |
JP2005351924A (ja) | 液晶表示装置 | |
KR20000023188A (ko) | 액정 표시 장치 | |
JP2015018065A (ja) | 液晶表示装置及びその製造方法並びに液晶配向規制力判定方法 | |
JP3662573B2 (ja) | 液晶表示素子 | |
JPH09197420A (ja) | 液晶素子 | |
WO2010097879A1 (ja) | 液晶表示装置 | |
KR100449374B1 (ko) | 액정표시소자 | |
US20090201453A1 (en) | Liquid crystal display panel and method of manufacturing the same | |
JP4357622B2 (ja) | 液晶表示装置 | |
US20040100593A1 (en) | Method for designing mask and fabricating panel | |
JP4031658B2 (ja) | 液晶表示装置 | |
JP3395884B2 (ja) | 液晶表示パネルおよびその製造方法 | |
JP2009294320A (ja) | 液晶表示装置 | |
US7362410B2 (en) | Method for designing mask and fabricating panel | |
JP2005128359A (ja) | 液晶表示装置 | |
JPH07120764A (ja) | 液晶表示パネル及びその製造方法 | |
JP2006301466A (ja) | 液晶表示装置 | |
JP2005189476A (ja) | 液晶表示装置 | |
KR100294687B1 (ko) | 액정표시소자 | |
JPH10161111A (ja) | ダブルスーパーツイストネマチック型液晶表示素子 | |
CN116149100A (zh) | 显示面板、显示装置、及光配向方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200480028211.0 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2004772999 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2007030429 Country of ref document: US Ref document number: 10571559 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020067005970 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 2004772999 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1020067005970 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 10571559 Country of ref document: US |