公开(公告)号：US20150042922A1

公开(公告)日：2015-02-12

申请号：US14382753

申请日：2013-02-20

Applicant: Sharp Kabushiki Kaisha

Inventor： Yuichi Kawahira ,  Toshihiro Matsumoto ,  Mitsuhiro Murata ,  Yosuke Iwata

IPC: G02F1/13363 ,  G02F1/1362 ,  G02F1/1333 ,  G02F1/00 ,  G02F1/1335 ,  G02F1/1343

CPC classification number: G02F1/13363 ,  G02F1/0045 ,  G02F1/133345 ,  G02F1/133528 ,  G02F1/133555 ,  G02F1/1336 ,  G02F1/134309 ,  G02F1/134363 ,  G02F1/13439 ,  G02F1/1362 ,  G02F1/1393 ,  G02F2001/133541 ,  G02F2001/133638 ,  G02F2413/13

Abstract: A liquid crystal display panel includes a metal electrode, a transparent electrode, an interlayer insulating film, and a comb-shaped electrode. Distorted horizontal electric fields are generated in order to distort the orientation of liquid crystal molecules. Accordingly, it is possible to achieve a transflective liquid crystal display device that has high transmittance, reflectance, and yield, and that can suppress display defects such as screen burn-in without using a panel gap adjusting structure, a driving method that respectively applies different electric fields to the reflective region and the transmissive region, or a multi-L/S structure.

Abstract translation: 液晶显示面板包括金属电极，透明电极，层间绝缘膜和梳状电极。 产生扭曲的水平电场以使液晶分子的取向变形。 因此，可以实现透射率，反射率和产率高的半透射型液晶显示装置，并且可以在不使用面板间隙调整结构的情况下抑制屏幕老化等显示缺陷，分别应用不同的 反射区域和透射区域的电场，或多L / S结构。

公开(公告)号：US10705375B2

公开(公告)日：2020-07-07

申请号：US15770740

申请日：2016-10-21

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Hisashi Watanabe ,  Hirotoshi Yasunaga ,  Ryuzo Yuki ,  Mitsuhiro Murata

IPC: G02F1/13357 ,  F21V8/00

Abstract: A backlight unit includes side emitting-type LEDs, a light guide plate, and an LED board. The light guide plate includes a light entering end surface, a light exiting plate surface, and an opposite plate surface. The LED board includes a plate surface attached to an edge of the opposite plate surface of the light guide plate. A gap is present between light emitting surfaces of the LEDs and the light entering end surface of the light guide plate. Each LED includes a light emitting surface having a dimension in the thickness direction of the light guide plate smaller than a dimension of the light entering end surface in the thickness direction. Each LED is disposed such that the center of the light emitting surface is opposed to the center of the light entering end surface.

公开(公告)号：US10558085B2

公开(公告)日：2020-02-11

申请号：US16316141

申请日：2017-07-05

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Takuma Tomotoshi ,  Mitsuhiro Murata ,  Yosuke Iwata ,  Satoshi Matsumura

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

Abstract: The present invention provides a liquid crystal display device capable of achieving a high contrast ratio, a wide viewing angle, and a high-speed response. The liquid crystal display device includes an upper substrate; a lower substrate; and a liquid crystal layer sandwiched between the upper substrate and the lower substrate. The lower substrate includes a first electrode, and a second electrode and a third electrode arranged in a layer different from the first electrode. The first electrode includes a trunk portion and multiple branch portions branching from the trunk portion and is provided with an opening between the branch portions. The second electrode and the third electrode constitute a pair of comb-shaped electrodes and each include a trunk portion and multiple branch portions branching from the trunk portion. The branch portions of the first electrode are each bent at a predetermined angle. The electrodes each have a predetermined configuration.

公开(公告)号：US10345507B2

公开(公告)日：2019-07-09

申请号：US15522457

申请日：2015-10-29

Applicant: Sharp Kabushiki Kaisha

Inventor： Ryuzo Yuki ,  Mitsuhiro Murata ,  Takeshi Ishida

IPC: F21V7/04 ,  F21V8/00 ,  G02F1/1335

Abstract: A lighting device includes a light source emitting light having an orientation distribution around an optical axis, a light guide plate having a hole and including a light entrance surface, a light exit surface, a non-light exit portion, and a light receiving surface, and a reflecting portion. The light entrance surface is opposite the light source such that the optical axis overlaps the hole. The non-light exit portion is the hole and surrounded by the light exit surface. The light receiving surface is next to the light entrance surface and near the non-light exit portion and receives maximum inclination light including light inclined at a largest angle with respect to the optical axis in a plan view. The reflecting portion is arranged opposite the light receiving surface and reflects the maximum inclination light from the light receiving surface toward the non-light exit portion.

公开(公告)号：US10185188B2

公开(公告)日：2019-01-22

申请号：US15557711

申请日：2016-03-04

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Satoshi Matsumura ,  Yosuke Iwata ,  Mitsuhiro Murata

IPC: G02F1/137 ,  G02F1/1343 ,  G02F1/1368

Abstract: The liquid crystal display device of the present invention includes: upper and lower substrates; and a horizontal alignment type liquid crystal layer, the lower substrate including electrodes, the electrodes including a first electrode, a second electrode present in a different layer from the first electrode, and a third electrode present in a different layer from the first electrode, the first electrode including a plurality of linear sections, the second electrode and the third electrode constituting a pair of comb electrodes, each of the comb electrodes including a trunk part and a plurality of branch parts diverging from the trunk part, at least one of the plurality of branch parts of the third electrode including a protruding part that makes the branch part partially wide, between two intersections with a plurality of linear sections of the first electrode in a plan view of the lower substrate.

公开(公告)号：US09904126B2

公开(公告)日：2018-02-27

申请号：US15318988

申请日：2015-07-17

Applicant: Sharp Kabushiki Kaisha

Inventor： Yosuke Iwata ,  Mitsuhiro Murata ,  Satoshi Matsumura

IPC: G02F1/1343 ,  G02F1/1335 ,  G02F1/1368

CPC classification number: G02F1/134363 ,  G02F1/133528 ,  G02F1/133707 ,  G02F1/13439 ,  G02F1/1368 ,  G02F2001/134318 ,  G02F2001/134372 ,  G02F2001/134381 ,  G02F2202/10 ,  G02F2203/64 ,  G02F2203/66

Abstract: The present invention provides a liquid crystal display device capable of achieving a high response speed. The liquid crystal display device includes: an upper substrate and a lower substrate; and a liquid crystal layer disposed between the upper and lower substrates, the upper substrate including an electrode, the lower substrate including paired electrodes, the liquid crystal layer containing liquid crystal molecules that are aligned in parallel with the main surfaces of the upper and lower substrates with no voltage applied, the liquid crystal display device being configured to provide one of white display and black display by utilizing an electric field generated between the paired electrodes of the lower substrate to rotate the liquid crystal molecules in one direction in a plane parallel to the main surfaces, and the other of white display and black display by utilizing an electric field generated by the respective electrodes of the upper and lower substrates to rotate the liquid crystal molecules in the opposite direction from the one direction in the plane parallel to the main surfaces.

公开(公告)号：US09760102B2

公开(公告)日：2017-09-12

申请号：US15253152

申请日：2016-08-31

Applicant: Sharp Kabushiki Kaisha

Inventor： Kohei Tanaka ,  Hidefumi Yoshida ,  Takeshi Noma ,  Ryo Yonebayashi ,  Takayuki Nishiyama ,  Mitsuhiro Murata ,  Yosuke Iwata

IPC: G09G5/00 ,  G05F1/46 ,  G02F1/1368 ,  G02F1/1362 ,  H03K17/042 ,  H03K17/16 ,  H03K17/687 ,  G09G3/36 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1345 ,  H01L27/12 ,  H01L27/32

CPC classification number: G05F1/467 ,  G02F1/133308 ,  G02F1/133514 ,  G02F1/13454 ,  G02F1/136213 ,  G02F1/136227 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2201/123 ,  G09G3/3677 ,  G09G2300/0408 ,  G09G2300/0426 ,  G09G2310/0251 ,  G09G2310/0281 ,  G09G2310/0286 ,  G09G2320/0223 ,  H01L27/124 ,  H01L27/1255 ,  H01L27/3272 ,  H03K17/04206 ,  H03K17/165 ,  H03K17/687

Abstract: A technique is provided that reduces dullness of a potential provided to a line such as gate line on an active-matrix substrate to enable driving the line at high speed and, at the same time, reduces the size of the picture frame region. On an active-matrix substrate (20a) are provided gate lines (13G) and source lines. On the active-matrix substrate (20a) are further provided: gate drivers (11) each including a plurality of switching elements, at least one of which is located in a pixel region, for supplying a scan signal to a gate line (13G); and lines (15L1) each for supplying a control signal to the associated gate driver (11). A control signal is supplied by a display control circuit (4) located outside the display region to the gate drivers (11) via the lines (15L1). In response to a control signal supplied, each gate driver (11) drives the gate line (13G) to which it is connected.

公开(公告)号：US09612486B2

公开(公告)日：2017-04-04

申请号：US14409185

申请日：2013-06-06

Applicant: Sharp Kabushiki Kaisha

Inventor： Hidefumi Yoshida ,  Yosuke Iwata ,  Mitsuhiro Murata ,  Yasuhiro Nasu ,  Koichi Miyachi ,  Tsuyoshi Kamata

IPC: G02F1/1343 ,  G02F1/133 ,  G02F1/1335 ,  G02F1/137

CPC classification number: G02F1/134309 ,  G02F1/13306 ,  G02F1/1336 ,  G02F1/134363 ,  G02F2001/134381 ,  G02F2001/13712

Abstract: A liquid crystal display device is provided that has favorable display characteristics in a display mode using a vertical electric field and a horizontal electric field. This liquid crystal display device includes a first substrate and a second substrate arranged facing each other, and a liquid crystal layer sandwiched between the first substrate and the second substrate. The liquid crystal layer has liquid crystal molecules having a negative dielectric anisotropy, and the first substrate has a plate-shaped first common electrode and a pixel electrode formed in a separate layer from the first common electrode with an insulating film therebetween. The pixel electrode has a comb-shaped structure, and the second substrate has a second common electrode with a liquid crystal orientation structure that is linear in a plan view.

公开(公告)号：US09575364B2

公开(公告)日：2017-02-21

申请号：US14350943

申请日：2012-10-11

Applicant: Sharp Kabushiki Kaisha

Inventor： Hidefumi Yoshida ,  Tsuyoshi Kamada ,  Tsuyoshi Maeda ,  Mitsuhiro Murata ,  Yoji Yoshimura ,  Yuichiro Yamada ,  Kenji Okamoto ,  Yosuke Iwata ,  Yasuhiro Nasu ,  Akira Sakai ,  Masahiro Hasegawa

IPC: G02F1/1337 ,  G02F1/1343

CPC classification number: G02F1/1337 ,  G02F1/133707 ,  G02F1/133753 ,  G02F1/133788 ,  G02F1/134309 ,  G02F2001/133742 ,  G02F2201/122

Abstract: This liquid crystal display device (100) includes: a vertical alignment liquid crystal layer (30); first and second substrates (10, 20); first and second electrodes (11, 21) arranged on the first and second substrates to face the liquid crystal layer; and two photo-alignment films (12, 22). Each pixel region includes first and second liquid crystal domains, of which the reference alignment directions defined by the two photo-alignment films are a first direction and a second direction different from the first direction, respectively. The first electrode has a slit cut region (11R1), through which a slit (11s) has been cut to run substantially parallel to the reference alignment direction, in a part of a region allocated to each of the first and second liquid crystal domains. The width (W) of the slit is set so that when the highest grayscale voltage is applied to the first electrode, an effective applied voltage decreases by at least 0.5 V and the alignment direction of liquid crystal molecules (30a) shifts with respect to the reference alignment direction by less than 45 degrees.

Abstract translation: 该液晶显示装置（100）包括：垂直取向液晶层（30）; 第一和第二基板（10,20）; 布置在第一和第二基板上以面对液晶层的第一和第二电极（11,21）; 和两个光取向膜（12,22）。 每个像素区域包括第一和第二液晶畴，其中由两个光取向膜限定的参考对准方向分别是与第一方向不同的第一方向和第二方向。 在分配给第一和第二液晶畴中的每一个的区域的一部分中，第一电极具有狭缝切割区域（11R1），通过该狭缝切割区域切割狭缝（11s）基本上平行于参考取向方向延伸。 狭缝的宽度（W）被设定为使得当对第一电极施加最高的灰度电压时，有效施加电压降低至少0.5V，并且液晶分子（30a）的取向方向相对于 参考对准方向小于45度。

公开(公告)号：US09489912B2

公开(公告)日：2016-11-08

申请号：US14411940

申请日：2013-07-01

Applicant: Sharp Kabushiki Kaisha

Inventor： Akihito Jinda ,  Mitsuhiro Murata ,  Kohhei Tanaka ,  Yosuke Iwata

IPC: G09G5/00 ,  G09G3/36 ,  G02F1/1343

CPC classification number: G09G3/3696 ,  G02F1/134363 ,  G02F2001/134381 ,  G09G3/3659 ,  G09G2300/0426 ,  G09G2300/0434

Abstract: Provided is a liquid crystal display apparatus employing a drive method whereby nonuniform electric field is not generated in pixels. This liquid crystal display apparatus is provided with a first substrate, a first electrode, a second electrode, a second substrate, a common electrode, a counter electrode, a liquid crystal layer, and a drive unit. The drive unit executes drive operations including: operations of setting the potential of the first electrode at a low level, the potential of the second electrode at a high level, and the potential of the counter electrode at the high level; operations of setting the potential at the high level, the potential at the low level, and the potential at the high level; operations of setting the potential at the low level, the potential at the high level, and the potential at the low level; and operations of setting the potential at the high level, the potential at the low level, and the potential at the low level.

Abstract translation: 本发明提供一种液晶显示装置，其采用以像素不产生不均匀电场的驱动方法。 该液晶显示装置设置有第一基板，第一电极，第二电极，第二基板，公共电极，对电极，液晶层和驱动单元。 驱动单元执行驱动操作，包括：将第一电极的电位设定为低电平，将第二电极的电位设定为高电平，将对置电极的电位置于高电平的动作; 将潜力置于高位，潜力处于低水平，潜力处于高位的作战; 将潜力置于低水平，潜力处于高位，潜力处于低水平的作战; 将潜力置于高位，潜力处于低水平，潜力处于低位的作战。