公开(公告)号：US20140292833A1

公开(公告)日：2014-10-02

申请号：US14219236

申请日：2014-03-19

Applicant: Japan Display Inc.

Inventor： Toshiharu MATSUSHIMA

IPC: G09G3/36 ,  G09G3/20

CPC classification number: G09G3/3648 ,  G09G2320/041

Abstract: According to an aspect, a liquid-crystal display device includes: a liquid crystal layer including a pixel; a driving circuit unit for applying a driving voltage to the pixel; a status detection unit that detects a response speed of the liquid crystal layer; and a control unit that controls a gradation of the pixel by controlling the driving voltage. The control unit switches between a first mode and a second mode based on a detection result from the status detection unit. In the first mode, the control unit uses each of a predetermined number of voltage values from a minimum voltage value to a maximum voltage as a voltage value of the driving voltage corresponding to a gradation value. In the second mode, the control unit uses part of the predetermined number of voltage values as a voltage value of the driving voltage for overdrive.

Abstract translation: 根据一方面，液晶显示装置包括：包括像素的液晶层; 用于向像素施加驱动电压的驱动电路单元; 状态检测单元，其检测所述液晶层的响应速度; 以及控制单元，其通过控制驱动电压来控制像素的灰度。 控制单元基于来自状态检测单元的检测结果在第一模式和第二模式之间切换。 在第一模式中，控制单元使用从最小电压值到最大电压的预定数量的电压值中的每一个作为对应于灰度值的驱动电压的电压值。 在第二模式中，控制单元使用预定数量的电压值的一部分作为用于过驱动的驱动电压的电压值。

公开(公告)号：US20240272504A1

公开(公告)日：2024-08-15

申请号：US18630538

申请日：2024-04-09

Applicant: Japan Display Inc.

Inventor： Toshiharu MATSUSHIMA

IPC: G02F1/137 ,  B60K35/00 ,  G02F1/01 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/1347

CPC classification number: G02F1/137 ,  G02F1/0136 ,  G02F1/133531 ,  G02F1/133638 ,  G02F1/1347 ,  B60K35/00 ,  B60K2360/25 ,  B60K2360/33

Abstract: According to one embodiment, a display device includes a display panel configured to modulate a first polarization component, a first viewing angle control panel including a first liquid crystal layer containing twisted liquid crystal molecules, a second viewing angle control panel including a second liquid crystal layer containing twisted liquid crystal molecules, and a polarization axis rotation element provided between the first viewing angle control panel and the display panel. A second polarization axis of a second polarization component which passed through the first viewing angle control panel is different from a first polarization axis of the first polarization component. The polarization axis rotation element is configured to rotate the second polarization axis.

公开(公告)号：US20230408874A1

公开(公告)日：2023-12-21

申请号：US18461523

申请日：2023-09-06

Applicant: Japan Display Inc.

Inventor： Shunichi KIMURA ,  Toshiharu MATSUSHIMA

IPC: G02F1/1343 ,  G02F1/1335

CPC classification number: G02F1/134309 ,  G02F1/133512

Abstract: According to one embodiment, in a display device, a first pixel electrode and a second pixel electrode overlap with a first electrode which includes a first branch portion that is exposed from between the first pixel electrode and the second pixel electrode, a second electrode includes a first trunk portion, a second branch portion, and a second trunk portion, the second branch portion overlaps with the first pixel electrode, a light-shielding layer includes a first opening portion, a second opening portion, and a light-shielding portion located between the first and second opening portions, the first opening portion overlaps with the second branch portion, and the light-shielding portion overlaps with the first branch portion.

公开(公告)号：US20230400617A1

公开(公告)日：2023-12-14

申请号：US18329608

申请日：2023-06-06

Applicant: Japan Display Inc.

Inventor： Toshiharu MATSUSHIMA

IPC: G02B5/30 ,  G02F1/1335

CPC classification number: G02B5/3083 ,  G02B5/3016 ,  G02F1/133528

Abstract: An optical element includes a first polarizing plate having a first absorption axis, a second polarizing plate facing the first polarizing plate and having a second absorption axis, and a first liquid crystal film and a second liquid crystal film provided between the first polarizing plate and the second polarizing plate. The second polarizing plate, the second liquid crystal film, the first liquid crystal film, and the first polarizing plate are stacked in order, the first liquid crystal film and the second liquid crystal film each include a liquid crystal molecule immobilized in hybrid orientation along a normal direction, and a front phase difference of the first liquid crystal film and the second liquid crystal film is 200 nm or larger.

公开(公告)号：US20230307463A1

公开(公告)日：2023-09-28

申请号：US18186976

申请日：2023-03-21

Applicant: Japan Display Inc.

Inventor： Toshiharu MATSUSHIMA ,  Shunichi KIMURA

IPC: H01L27/12 ,  G02F1/1362 ,  G02F1/1343

CPC classification number: H01L27/124 ,  G02F1/136286 ,  G02F1/134309

Abstract: According to one embodiment, a display device includes scanning lines, signal lines, pixels, a pixel electrode, a common electrode including a stem portion and branch portions, and a third wiring line, wherein a region where each pixel electrode and the first scanning line overlap is larger than a region where the respective pixel electrode and the second scanning line overlap, a width of the first region of the third wiring lines is less than a width of the scanning lines, and the branch portions of the common electrode extend from the stem portion along the second direction.

公开(公告)号：US20230205013A1

公开(公告)日：2023-06-29

申请号：US18178655

申请日：2023-03-06

Applicant: Japan Display Inc.

Inventor： Toshiharu MATSUSHIMA

IPC: G02F1/1337 ,  G02F1/1343

CPC classification number: G02F1/133707 ,  G02F1/134309 ,  G02F1/1337 ,  G02F1/134363 ,  G02F1/133738 ,  G02F1/134372 ,  G02F2201/124

Abstract: According to one embodiment, a display device includes a first substrate with a first alignment film, a second substrate with a second alignment film, and a liquid crystal layer interposed therebetween. The first substrate has first and second electrodes. An initial alignment direction of liquid crystal molecules of the liquid crystal layer is parallel to a first direction or a direction orthogonal to the first direction. The second electrode includes comblike electrodes extending parallel to the first direction and a connecting portion which connects the comblike electrodes. The connecting portion includes a projection which projects in a second direction more than an outermost comblike electrode.

公开(公告)号：US20230100929A1

公开(公告)日：2023-03-30

申请号：US17953437

申请日：2022-09-27

Applicant: Japan Display Inc.

Inventor： Shunichi KIMURA ,  Toshiharu MATSUSHIMA

IPC: G02F1/1337 ,  G02F1/1368 ,  G02F1/1343 ,  G02F1/1335 ,  G02F1/1347

Abstract: According to one embodiment, a display device includes an illumination device, a display panel, a first polarizer attached to the display panel, a second polarizer attached to the display panel, and a transmissive diffraction grating provided in a location between the illumination device and the first polarizer or in a location facing the second polarizer. The diffraction grating includes a third substrate, a fourth substrate, and a second liquid crystal layer provided between the third substrate and the fourth substrate, containing a plurality of liquid crystal molecules, and cured in a state where alignment directions of the liquid crystal molecules are fixed.

公开(公告)号：US20220373844A1

公开(公告)日：2022-11-24

申请号：US17749142

申请日：2022-05-20

Applicant: Japan Display Inc.

Inventor： Shunichi KIMURA ,  Toshiharu MATSUSHIMA

IPC: G02F1/1343 ,  G02F1/1335

Abstract: According to one embodiment, in a display device, a first pixel electrode and a second pixel electrode overlap with a first electrode which includes a first branch portion that is exposed from between the first pixel electrode and the second pixel electrode, a second electrode includes a first trunk portion, a second branch portion, and a second trunk portion, the second branch portion overlaps with the first pixel electrode, a light-shielding layer includes a first opening portion, a second opening portion, and a light-shielding portion located between the first and second opening portions, the first opening portion overlaps with the second branch portion, and the light-shielding portion overlaps with the first branch portion.

公开(公告)号：US20220350183A1

公开(公告)日：2022-11-03

申请号：US17868898

申请日：2022-07-20

Applicant: Japan Display Inc.

Inventor： Yosuke HYODO ,  Shinichiro OKA ,  Toshiharu MATSUSHIMA

IPC: G02F1/1345 ,  G02F1/1339

Abstract: According to one embodiment, a display device includes a first display panel, a second display panel and an adhesive layer. The first display panel includes a first substrate with a first terminal area in which a first terminal part is formed, and a second substrate which is opposed to the first substrate and has a thickness different from that of the first substrate. The second display panel includes a third substrate with a second terminal area in which a second terminal part is formed, and a fourth substrate which is opposed to the third substrate and has a thickness different from that of the third substrate. The first terminal area and the second terminal area do not overlap with each other in a plan view.

公开(公告)号：US20220091464A1

公开(公告)日：2022-03-24

申请号：US17477556

申请日：2021-09-17

Applicant: Japan Display Inc.

Inventor： Shunichi KIMURA ,  Toshiharu MATSUSHIMA

IPC: G02F1/1343 ,  G02F1/1337

Abstract: According to one embodiment, a display device includes a first substrate including a common electrode and a pixel electrode, a second substrate, a liquid crystal layer, a first alignment film and a second alignment film. The pixel electrode includes a plurality of branch portions extending in a first direction and a connection portion extending in a second direction, wherein the first alignment film and the second alignment film are photo-alignment films, and the first alignment film has an anchoring strength of 1*10−3J/m2 or less.