公开(公告)号：US20140253853A1

公开(公告)日：2014-09-11

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

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：US10901442B2

公开(公告)日：2021-01-26

申请号：US16444105

申请日：2019-06-18

Applicant: Sharp Kabushiki Kaisha

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

IPC: G09G3/3266 ,  G09G3/36 ,  G05F1/46 ,  G02F1/1362 ,  G02F1/1368 ,  H03K17/042 ,  H03K17/16 ,  H03K17/687 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1345 ,  H01L27/12 ,  H01L27/32

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：US10527778B2

公开(公告)日：2020-01-07

申请号：US15759232

申请日：2016-09-08

Applicant: Sharp Kabushiki Kaisha

Inventor： Ryuzo Yuki ,  Katsutoshi Kikuchi ,  Hayato Nakamura ,  Makoto Yoshimura ,  Hiromi Enomoto ,  Mitsuhiro Murata ,  Hisashi Watanabe ,  Hirotoshi Yasunaga

IPC: G04B19/30 ,  F21V8/00

Abstract: A lighting device includes a light guide plate, a first light source, a second light source, and a case. The light guide plate includes plate surfaces and an outer peripheral surface. One of the plate surfaces is configured as a light exiting surface. Sections of the outer peripheral surface on opposite sides from each other relative to the center of the light exiting surface are configured as a first light entering surface and a second light entering surface, respectively. The first light source is disposed opposite the first light entering surface. The second light source is disposed opposite the second light entering surface. The case includes an annular wall portion surrounding an outer circumference of the light guide plate, the first light source, and the second light source. The annular wall portion includes light source non-disposing areas between the first light entering surface and the second light entering surface.

公开(公告)号：US10466402B2

公开(公告)日：2019-11-05

申请号：US15312312

申请日：2015-05-15

Applicant: Sharp Kabushiki Kaisha

Inventor： Hirotoshi Yasunaga ,  Takeshi Ishida ,  Mitsuhiro Murata ,  Ryuzo Yuki

IPC: F21V8/00 ,  G02B6/00 ,  G02F1/13357 ,  G02F1/1335

Abstract: An illumination device according to the present invention includes: a light source row in which a plurality of light sources are aligned in a row; a light guide plate that includes a plate-shaped main body with an end thereof facing the light source row, a light-receiving portion that is arranged on the end of the main body and into which light from the light sources enters, plate-shaped side extensions that are arranged on the sides of the main body and that extend outwards further than the light-receiving portion, and a light-exiting portion that is arranged on front surfaces of the main body and the side extensions and that allows light that enters via the light-receiving portion to exit; and a supply unit that supplies light to the side extensions.

公开(公告)号：US10317750B2

公开(公告)日：2019-06-11

申请号：US15741247

申请日：2016-06-27

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Yosuke Iwata ,  Mitsuhiro Murata ,  Satoshi Matsumura

IPC: G02F1/1343

Abstract: In the present invention, a liquid crystal display device capable of achieving a high contrast ratio and a wide viewing angle, and capable of achieving a high-speed response is provided. The liquid crystal display device in the present invention is configured such that, when viewed in a plan view, at least one contour line of a plurality of linear portions of a first electrode intersects with a branch portion of a second electrode and a branch portion of a third electrode adjacent to each other, a length of a part intersecting with the branch portion of the third electrode is longer than a length of a part intersecting with the branch portion of the second electrode, and a driving operation is performed such that a potential difference between the first electrode and the third electrode is equal to or greater than a potential difference between the first electrode and the second electrode.

公开(公告)号：US09933563B2

公开(公告)日：2018-04-03

申请号：US15311854

申请日：2015-05-15

Applicant: Sharp Kabushiki Kaisha

Inventor： Ryuzo Yuki ,  Takeshi Ishida ,  Mitsuhiro Murata ,  Hirotoshi Yasunaga

IPC: F21V8/00 ,  G02F1/1339 ,  B60K37/02 ,  B60K35/00

CPC classification number: G02B6/0088 ,  B60K35/00 ,  B60K37/02 ,  B60K2350/1056 ,  B60K2350/2039 ,  G02B6/0021 ,  G02F1/133308 ,  G02F1/1339 ,  G02F2001/133322 ,  G02F2201/56

Abstract: A backlight unite 12 includes LEDs 17, an optical member 16, a positioning portion 23, and a rotation restricting portion 24. The optical member 16 includes at least a curved end surface 16C having a curved shape in a plan view included in a periphery of the optical member 16. The positioning portion 26 includes a positioning hole 25 that opens through a thickness direction of the optical member 16 and a positioning protrusion 26 that is inserted in the positioning hole 25 and is in contact with an inner wall of the positioning hole 25. The rotation restricting portion 24 includes an optical member recess 27 that is a portion of the periphery of the optical member 16 recessed along a circumferential direction and a contact portion 28 that is in contact with the optical member recess 27.

公开(公告)号：US09841643B2

公开(公告)日：2017-12-12

申请号：US14905439

申请日：2014-07-07

Applicant: Sharp Kabushiki Kaisha

Inventor： Mitsuhiro Murata ,  Yosuke Iwata ,  Hidefumi Yoshida

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

CPC classification number: G02F1/134363 ,  G02F1/133345 ,  G02F2001/133749

Abstract: A liquid crystal display device includes: a first substrate; a second substrate; and a liquid crystal layer of a horizontal orientation type that is sandwiched between the first substrate and the second substrate. The first substrate includes a first electrode pair that applies a first horizontal electric field to the liquid crystal layer, an insulating layer provided on the first electrode pair, and a second electrode pair that is provided on the insulating layer and that applies a second horizontal electric field to the liquid crystal layer. The first electrode pair includes first and second linear electrodes provided with a gap therebetween. The second electrode pair includes third and fourth linear electrodes provided with a gap therebetween. In a plan view of the first substrate, the third and fourth linear electrodes extend in a direction perpendicular with respect to the first and second linear electrodes.

公开(公告)号：US20150293546A1

公开(公告)日：2015-10-15

申请号：US14438941

申请日：2013-10-30

Applicant: SHARP KABUSHIKI KAISHA

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

IPC: G05F1/46 ,  H03K17/16 ,  H03K17/687 ,  H03K17/042

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.

Abstract translation: 提供了一种技术，其减少了提供给有源矩阵基板上的诸如栅极线的线的电位的钝度，以使得能够以高速驱动线，并且同时减小了相框区域的尺寸。 在有源矩阵基板（20a）上设有栅极线（13G）和源极线。 在有源矩阵基板（20a）上还提供有：栅极驱动器（11），每个栅极驱动器（11）包括多个开关元件，其中至少一个位于像素区域中，用于将扫描信号提供给栅极线（13G） ; 和用于向相关联的门驱动器（11）提供控制信号的线路（15L1）。 控制信号由位于显示区域外的显示控制电路（4）通过线路（15L1）提供给栅极驱动器（11）。 响应于提供的控制信号，每个栅极驱动器（11）驱动与其连接的栅极线（13G）。

公开(公告)号：US20150212377A1

公开(公告)日：2015-07-30

申请号：US14126461

申请日：2012-05-31

Applicant: Sharp Kabushiki Kaisha

Inventor： Takao Imaoku ,  Yuichi Iyama ,  Iori Aoyama ,  Takatomo Yoshioka ,  Kazuhiko Tsuda ,  Mitsuhiro Murata

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

CPC classification number: G02F1/134363 ,  G02F1/1368 ,  G02F1/137 ,  G02F2001/134381 ,  G02F2001/13706

Abstract: The present invention provides a liquid crystal display panel and a liquid crystal display device each of which exhibits a sufficiently increased transmittance and an excellent response speed in falling, with its three-layered electrode structure that controls the alignment of liquid crystal molecules by an electric field in both rising and falling. The liquid crystal display panel of the present invention includes: a first substrate; a second substrate; and a liquid crystal layer disposed between the substrates, the first substrate and the second substrate each having an electrode, the first substrate further having a dielectric layer, the electrode of the second substrate including a pair of comb-shaped electrodes and a planar electrode.

Abstract translation: 本发明提供了一种液晶显示面板和液晶显示装置，其三维电极结构通过电场控制液晶分子的取向，其显示出充分增加的透射率和优异的下落响应速度 在上升和下降。 本发明的液晶显示面板包括：第一基板; 第二基板; 以及设置在所述基板之间的液晶层，所述第一基板和所述第二基板各自具有电极，所述第一基板还具有电介质层，所述第二基板的电极包括一对梳状电极和平面电极。

公开(公告)号：US20150153620A1

公开(公告)日：2015-06-04

申请号：US14414391

申请日：2013-07-16

Applicant: Sharp Kabushiki Kaisha

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

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

CPC classification number: G02F1/134309 ,  G02F1/133345 ,  G02F1/1337 ,  G02F2001/133742 ,  G02F2001/133773 ,  G02F2001/134381 ,  G02F2001/13712 ,  G09G3/36 ,  G09G2300/0447

Abstract: Provided is a liquid crystal display device having excellent viewing angle characteristics and high contrast in a display mode using both a vertical electric field and a horizontal electric field. This liquid crystal display device is provided with a first substrate and a second substrate disposed facing each other, and a liquid crystal layer held between said first and second substrates. The liquid crystal layer contains liquid crystal molecules having a negative dielectric anisotropy. The first substrate is provided with a flat plate first electrode, a first insulating layer, and a second electrode provided in a layer other than that of the first electrode and provided separated from the first electrode by the first insulating layer. The second electrode has multiple comb-tooth sections and multiple slits, and the second substrate has a flat plate third electrode. Defining V1 as the potential difference between the first electrode and the third electrode, V2 as the potential difference between the first electrode and the second electrode, and V2—B as the potential difference between the first electrode and the second electrode when the lowest gradation is showed, V1, V2 and V2—B satisfy 0

Abstract translation: 提供一种液晶显示装置，其在使用垂直电场和水平电场的显示模式中具有优异的视角特性和高对比度。 该液晶显示装置设置有彼此相对配置的第一基板和第二基板，以及保持在所述第一基板和第二基板之间的液晶层。 液晶层含有具有负介电各向异性的液晶分子。 第一基板设置有平板第一电极，第一绝缘层和设置在除了第一电极之外的层中的第二电极，并且通过第一绝缘层与第一电极分离设置。 第二电极具有多个梳齿部和多个狭缝，第二基板具有平板第三电极。 将V1定义为第一电极和第三电极之间的电位差，V2作为第一电极和第二电极之间的电位差，V2-B作为第一电极和第二电极之间的电位差，当最低等级为 显示V1，V2和V2-B满足0 <| V2-B |＆nlE; | V2 | <| V1 |。