公开(公告)号：JP2004077699A

公开(公告)日：2004-03-11

申请号：JP2002236499

申请日：2002-08-14

Applicant: Toshiba Corp ,  株式会社東芝

Inventor： NINOMIYA KISAKO ,  MURAYAMA AKIO ,  HARUHARA KAZUYUKI ,  KAWADA YASUSHI ,  HISATAKE YUZO ,  YAMAGUCHI TAKASHI ,  FUJIYAMA NATSUKO

IPC: G02F1/139 ,  G02F1/1337 ,  G02F1/1343

Abstract: PROBLEM TO BE SOLVED: To provide a liquid crystal display device the transmittance of which has excellent in-plane uniformity.
SOLUTION: The liquid crystal display device 1 is equipped with first and second substrates placed opposite to each other; a pixel electrodes 10 disposed on the surface of the first substrate opposite to the second substrate; a common electrode disposed on the surface of the second substrate opposite to the first substrate and a liquid crystal layer interposed between the pixel electrode 10 and the common electrode. The pixel electrode 10 is provided with a plurality of sub-pixel electrodes 10A to 10C, separated from and electrically connected to one another wherein each of the plurality of sub-pixel electrodes 10A to 10C is provided with a plurality of comb-shaped conductive layers 10a to 10d of which the shapes of the teeth of comb in the longitudinal directions are mutually different and which are mutually electrically connected. The shapes of patterns formed of the mutually different longitudinal directions are mutually identical among the plurality of sub-pixel electrodes 10A to 10C, and the directions of the patterns are mutually different among the plurality of sub-pixel electrodes 10A to 10C.
COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2004077698A

公开(公告)日：2004-03-11

申请号：JP2002236498

申请日：2002-08-14

Applicant: Toshiba Corp ,  株式会社東芝

Inventor： NINOMIYA KISAKO ,  MURAYAMA AKIO ,  HARUHARA KAZUYUKI ,  KAWADA YASUSHI ,  HISATAKE YUZO ,  YAMAGUCHI TAKASHI ,  FUJIYAMA NATSUKO

IPC: G02F1/139 ,  G02F1/1343

Abstract: PROBLEM TO BE SOLVED: To provide a liquid crystal display device with which high transmittance is realized even when a multi-domain type VAN mode is adopted.
SOLUTION: The liquid crystal display device 1 is equipped with first and second substrates 7, 15 placed opposite to each other, a pixel electrode 10 disposed on a surface of the first substrate 7 opposite to the second substrate 15, wiring arranged on the surface of the first substrate 7 opposite to the second substrate 15, a common electrode 16 disposed on a surface of the second substrate 15 opposite to the first substrate 7 and a liquid crystal layer 4 disposed between the pixel electrode 10 and the common electrode 16. The pixel electrode 10 is characterized by being provided with a plurality of comb-shaped conductive layers of which the longitudinal directions of the teeth of comb are mutually different and which are electrically connected wherein at least a part of the wiring exists being extended so as to overlap boundaries between respective adjacent pairs of a plurality of the comb-shaped conductive layers.
COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2004037853A

公开(公告)日：2004-02-05

申请号：JP2002194931

申请日：2002-07-03

Applicant: Toshiba Corp ,  株式会社東芝

Inventor： YAMAMOTO TAKESHI ,  MURAYAMA AKIO ,  HARUHARA KAZUYUKI ,  KAWADA YASUSHI ,  HISATAKE YUZO ,  YAMAGUCHI TAKASHI ,  NINOMIYA KISAKO ,  FUJIYAMA NATSUKO

IPC: G02F1/1337 ,  G02F1/1343 ,  G02F1/1368

Abstract: PROBLEM TO BE SOLVED: To provide a liquid crystal display device which is stably operated without necessitating high accuracy in alignment between an array substrate and a counter substrate even when an MVA mode is adopted. SOLUTION: The liquid crystal display device is provided with an array substrate comprising pixel electrodes 8, a counter substrate comprising a common electrode and a liquid crystal layer interposed between the substrates. The array substrate comprises a tilt controlling part controlling tilt directions of a liquid crystal molecules to divide a pixel region into a plurality of domains having tilt directions of the liquid crystal molecules different from each other by forming fluctuation of an electric field where intense and weak electric field regions are alternately arranged in various directions nearly parallel to each substrate in a pixel region consisting of the liquid crystal layer between the pixel electrodes 8 and the counter electrode as voltage is being applied. The tilt controlling part has a plurality of domain division patterns SL dividing the pixel electrodes 8 into a plurality of sub electrode parts 8S and regulating an anisotropic distribution of the intense and the weak electric field regions to a plurality of the sub electrode parts 8S. A plurality of the sub electrode parts are mutually connected by bridge electrodes BR. COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2004004314A

公开(公告)日：2004-01-08

申请号：JP2002159941

申请日：2002-05-31

Applicant: Toshiba Corp ,  株式会社東芝

Inventor： HISATAKE YUZO ,  YAMAGUCHI TAKASHI ,  NINOMIYA KISAKO ,  KAWADA YASUSHI ,  HARUHARA KAZUYUKI ,  FUJIYAMA NATSUKO ,  MURAYAMA AKIO

IPC: G02F1/13 ,  G02F1/1333 ,  G02F1/1343

Abstract: PROBLEM TO BE SOLVED: To save the inconvenience of precise positioning of an array substrate with a pixel electrode and a counter substrate with a common electrode using an alignment mark or the like necessitated in a color liquid crystal display adopting a multidomain VAN (vertical alignment nematic) mode and to provide the liquid crystal display which is constructed with only simple positioning.
SOLUTION: The pixel electrode 17 which is patterned with a slit 16 and a dielectric layer so as to alternately form a high electric field region and a low electric field region on the array substrate 20 is formed. The liquid crystal display device is constructed so as to make thickness of a liquid crystal layer 26 in the respective high and low electric field regions be mutually different.
COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2003315802A

公开(公告)日：2003-11-06

申请号：JP2002126332

申请日：2002-04-26

Applicant: Toshiba Corp ,  株式会社東芝

Inventor： FUJIYAMA NATSUKO ,  MURAYAMA AKIO ,  HARUHARA KAZUYUKI ,  KAWADA YASUSHI ,  HISATAKE YUZO ,  YAMAGUCHI TAKASHI ,  NINOMIYA KISAKO

IPC: G02F1/1337 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1343

Abstract: PROBLEM TO BE SOLVED: To provide a color liquid crystal display device which can be made up only by simple alignment.
SOLUTION: Pixel electrodes 17 are formed by arranging grooved parts 29 on a color filter layer 13 on an array substrate 20 and forming slits 16 or the like on the surface including these grooved parts 29, and thereby a strong electric field area and a weak area are alternately formed by applying voltage to this pixel electrode.
COPYRIGHT: (C)2004,JPO

Abstract translation: 要解决的问题：提供一种只能通过简单对准来制造的彩色液晶显示装置。 解决方案：像素电极17通过在阵列基板20上的滤色器层13上布置开槽部分29并在包括这些开槽部分29的表面上形成狭缝16等形成，从而形成强电场区域 通过向该像素电极施加电压来交替地形成弱区域。 版权所有（C）2004，JPO

公开(公告)号：JP2003315776A

公开(公告)日：2003-11-06

申请号：JP2002118137

申请日：2002-04-19

Applicant: Toshiba Corp ,  株式会社東芝

Inventor： HARUHARA KAZUYUKI ,  KAWADA YASUSHI ,  HISATAKE YUZO ,  NINOMIYA KISAKO ,  FUJIYAMA NATSUKO ,  MURAYAMA AKIO

IPC: G02B5/20 ,  G02F1/1335 ,  G02F1/1337

Abstract: PROBLEM TO BE SOLVED: To provide a liquid crystal display which can have a wider field angle when a multi-domain type VAN mode is employed. SOLUTION: The liquid crystal display 1 forms 1st and 2nd areas which are different in intensity of an electric field in a pixel area as an area of a liquid crystal layer 4 sandwiched between one of pixel electrodes 10 and a common electrode 16 which are applied with a voltage when the voltage is applied between the pixel electrode 10 and common electrode 16; and the 1st and 2nd areas are in shapes extending in one direction in a plane containing the liquid crystal layer 4 and alternately and repeatedly arrayed in a direction crossing the above-mentioned direction in the plane, each of the pixel electrodes 10 faces one of colored layers 9B, 9G, and 9R of a color filter layer 9, and one kind and other two kinds among pixel areas facing the blue colored layer 9B, pixel areas facing the green colored layer 9G, and pixel areas facing the red colored layer 9R are mutually different in length of the 1st or 2nd area. COPYRIGHT: (C)2004,JPO

Abstract translation: 要解决的问题：提供当采用多域型VAN模式时可以具有更宽的视场角的液晶显示器。 解决方案：液晶显示器1形成像素区域中的电场强度不同的第一和第二区域，作为夹在一个像素电极10和公共电极16之间的液晶层4的区域，其中 当在像素电极10和公共电极16之间施加电压时施加电压; 并且第一和第二区域在包含液晶层4的平面中沿一个方向延伸的形状，并且在与该平面中的上述方向交叉的方向上交替重复排列，每个像素电极10面向着色 滤色层9的层9B，9G，9R以及面对蓝色着色层9B的像素区域，面向绿色着色层9G的像素区域和面向红色着色层9R的像素区域中的一种以及其他两种 第一或第二区域的长度相互不同。 版权所有（C）2004，JPO

公开(公告)号：JP2003161947A

公开(公告)日：2003-06-06

申请号：JP2001359804

申请日：2001-11-26

Applicant: TOSHIBA CORP

Inventor： KAWADA YASUSHI ,  MURAYAMA AKIO ,  HARUHARA KAZUYUKI ,  KURAUCHI SHOICHI ,  YAMAGUCHI TAKASHI ,  MANABE ATSUYUKI ,  MAYA NATSUKO

IPC: G02F1/1337 ,  G02F1/1335 ,  G02F1/1343

Abstract: PROBLEM TO BE SOLVED: To provide a liquid crystal display device which can be manufactured without highly accurately aligning the position of an array substrate and a counter substrate even in the case that a MVA mode is adopted. SOLUTION: The liquid crystal display device 1 carries out display by changing a voltage to be applied between a pixel electrode 10 and a common electrode 16 between a first voltage and a second voltage higher than the first voltage. When a third voltage within the range of the first voltage through the second voltage is applied between the pixel electrode 10 and the common electrode 16, a first region and a second region having an electric field stronger than that of the first region are formed in the pixel area between the pixel electrode 10 and the common electrode 16 of the liquid crystal layer 4. The first and second regions each have a shape extending in one direction, and are arranged repeatedly and alternately within the pixel area in a direction crossing the one direction. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2003075839A

公开(公告)日：2003-03-12

申请号：JP2001272074

申请日：2001-09-07

Applicant: Toshiba Corp ,  株式会社東芝

Inventor： HARUHARA KAZUYUKI ,  KAWADA YASUSHI ,  KURAUCHI SHOICHI ,  YAMAGUCHI TAKASHI ,  MANABE ATSUYUKI ,  MAYA NATSUKO

IPC: G02F1/1337 ,  G02F1/1343

Abstract: PROBLEM TO BE SOLVED: To provide a liquid crystal display device of an MVA mode wherein highly accurate alignment between an array substrate and a counter substrate is not needed.
SOLUTION: The liquid crystal display device 1 of a multi-domain type vertical alignment mode is provided with an array substrate 2 provided with a first transparent substrate 7, a pixel electrode 10 formed on the first transparent substrate 7, a first alignment layer 11 formed on the pixel electrode 10 and a ridge-shaped protrusion part 20 provided between the first transparent substrate 7 and the pixel electrode 10 and bringing a ridge-shaped protrusion structure on the surface on the first alignment layer 11 side of the pixel electrode 10, a counter substrate 3 provided with a second transparent substrate 15 disposed opposite to the first alignment layer 11, a common electrode 16 formed on the surface opposed to the first alignment layer 11 of the second transparent substrate 15 as a flat and continuous film and a second alignment layer 17 formed on the common electrode 16 as a flat and continuous film and a liquid crystal layer 4 interposed between the array substrate 2 and the counter substrate 3.
COPYRIGHT: (C)2003,JPO

Abstract translation: 要解决的问题：提供一种MVA模式的液晶显示装置，其中不需要阵列基板和对向基板之间的高精度对准。 解决方案：多域型垂直取向模式的液晶显示装置1设置有阵列基板2，阵列基板2设置有第一透明基板7，形成在第一透明基板7上的像素电极10，形成的第一取向层11 在像素电极10和设置在第一透明基板7和像素电极10之间的棱形突起部20，并且在像素电极10的第一取向层11侧的表面上形成脊状突起结构， 对置基板3设置有与第一取向层11相对设置的第二透明基板15，与第二透明基板15的第一取向层11相对的表面形成为平坦连续的膜的公共电极16和第二对准 形成在公共电极16上的作为平坦且连续的膜的层17和介于阵列基板2和凸缘之间的液晶层4 底物3。

公开(公告)号：JP2003029281A

公开(公告)日：2003-01-29

申请号：JP2001216977

申请日：2001-07-17

Applicant: Toshiba Corp ,  株式会社東芝

Inventor： HARUHARA KAZUYUKI ,  KAWADA YASUSHI ,  KURAUCHI SHOICHI ,  YAMAGUCHI TAKASHI ,  MANABE ATSUYUKI ,  MAYA NATSUKO

IPC: G02F1/1343

Abstract: PROBLEM TO BE SOLVED: To provide an MVA mode liquid crystal display device which can be manufactured without accurate alignment between a wiring substrate and a counter substrate.
SOLUTION: The liquid crystal display device of this invention 1 comprises the wiring substrate 2 provided with wiring, a pixel electrodes 10, and auxiliary electrodes 20a, 20b on one main surface; the counter substrate 3 which is arranged to face the surface where the pixel electrodes 10 of the wiring substrate 2 are arranged, and which is provided with a flat and conductive continuous film on the counter surface of the wiring substrate 10 as a common electrode 16; and a liquid crystal layer 4 held between the wiring substrate 2 and the counter substrate 3, and performs displaying by varying the voltage to be applied across the pixel electrodes 10 and the common electrode 16 between 1st display voltage and 2nd display voltage higher than the 1st display voltage, and splits the pixel electrode limited by the pixel electrodes 10 when the 2nd voltage is applied across the pixel electrodes 10 and the common electrode 16 into a plurality of domains differing from each other in the tilt direction of the liquid crystal molecules 25 contained in the liquid crystal layer 4.
COPYRIGHT: (C)2003,JPO

Abstract translation: 要解决的问题：提供一种MVA模式液晶显示装置，其可以在布线基板和对向基板之间没有精确对准的情况下制造。 解决方案：本发明的液晶显示装置1包括在一个主表面上具有布线的布线基板2，像素电极10和辅助电极20a，20b; 布置成面对配线基板2的像素电极10的表面的对置基板3，并且在配线基板10的对置面上设置有平坦且导电的连续膜作为公共电极16; 以及保持在布线基板2和对置基板3之间的液晶层4，并且通过改变施加在像素电极10和公共电极16两端的电压的第一显示电压和高于第一显示电压的第二显示电压之间进行显示 显示电压，并且当将第二电压跨越像素电极10和公共电极16施加到在包含的液晶分子25的倾斜方向上彼此不同的多个畴时，由像素电极10限制的像素电极分裂 在液晶层4中。

公开(公告)号：JP2003029266A

公开(公告)日：2003-01-29

申请号：JP2001220194

申请日：2001-07-19

Applicant: Toshiba Corp ,  株式会社東芝

Inventor： MAYA NATSUKO ,  HARUHARA KAZUYUKI ,  KAWADA YASUSHI ,  KURAUCHI SHOICHI ,  YAMAGUCHI TAKASHI ,  MANABE ATSUYUKI

IPC: G02F1/139 ,  G02F1/1337 ,  G02F1/1343

Abstract: PROBLEM TO BE SOLVED: To provide a multi-domain type vertical alignment liquid crystal display element wherein high light transmittance and stable response time can be secured by generating uniform alignment deformation.
SOLUTION: The liquid crystal display element provided with a pair of substrates disposed opposite to each other, a liquid crystal layer interposed between the substrates, an electrode formed on the counter surface of at least one substrate of the pair of substrates and applying an electric field to the liquid crystal layer to control the alignment of liquid crystal molecules of the liquid crystal layer and a means to control the tilt direction of the liquid crystal molecules is characterized in that the means is a lacked part of the electrode having an anisotropic plane shape.
COPYRIGHT: (C)2003,JPO

Abstract translation: 要解决的问题：提供通过产生均匀的取向变形可以确保高透光率和稳定的响应时间的多畴型垂直取向液晶显示元件。 解决方案：设置有彼此相对布置的一对基板的液晶显示元件，插入在基板之间的液晶层，形成在该对基板的至少一个基板的对置表面上的电极，并施加电场 控制液晶层的液晶分子的取向和控制液晶分子的倾斜方向的手段的液晶层的特征在于，该装置是具有各向异性平面形状的电极的缺少部分。