公开(公告)号：US11221527B2

公开(公告)日：2022-01-11

申请号：US16927317

申请日：2020-07-13

Applicant: Japan Display Inc.

Inventor： Toshiharu Matsushima

IPC: G02F1/1347 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/137 ,  G02F1/139

Abstract: A viewing angle of emission light is widened. A width of the viewing angle is adjusted. A liquid crystal diffraction grating includes at least a first substrate, a liquid crystal layer and a second substrate. The first substrate includes a lower electrode and an upper electrode opposite to the lower electrode, and the upper electrode includes a plurality of branch electrodes that extend in a Y direction and are arranged in an X direction in a plan view. When no voltage is applied to the plurality of branch electrodes, an alignment direction of liquid crystal molecules of the liquid crystal layer is a direction along the X or Y direction. When polarizers are arranged on upper and lower sides of the liquid crystal diffraction grating, transmission axes of these polarizers are parallel to each other and parallel to the alignment direction of the liquid crystal molecules.

公开(公告)号：US11221521B2

公开(公告)日：2022-01-11

申请号：US16817739

申请日：2020-03-13

Applicant: Japan Display Inc.

Inventor： Shigesumi Araki ,  Toshiharu Matsushima ,  Shinichi Komura

IPC: G02F1/13363 ,  G02F1/1335 ,  G02F1/1339 ,  G02F1/1343

Abstract: Provided is a display device including an array substrate, a pixel, a dimming element, and a counter substrate. The pixel is located over the array substrate and includes a first electrode, a second electrode, and a liquid crystal layer over the first electrode and the second electrode. The dimming element is located over the array substrate and includes a third electrode, the liquid crystal layer over the third electrode, and a fourth electrode over the liquid crystal layer. The counter substrate is located over the fourth electrode.

公开(公告)号：US20200379301A1

公开(公告)日：2020-12-03

申请号：US16910592

申请日：2020-06-24

Applicant: Japan Display Inc.

Inventor： Toshiharu Matsushima

IPC: G02F1/1337 ,  G02F1/1343

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：US20200301188A1

公开(公告)日：2020-09-24

申请号：US16817739

申请日：2020-03-13

Applicant: Japan Display Inc.

Inventor： Shigesumi Araki ,  Toshiharu Matsushima ,  Shinichi Komura

IPC: G02F1/13363 ,  G02F1/1335 ,  G02F1/1339 ,  G02F1/1343

Abstract: Provided is a display device including an array substrate, a pixel, a dimming element, and a counter substrate. The pixel is located over the array substrate and includes a first electrode, a second electrode, and a liquid crystal layer over the first electrode and the second electrode. The dimming element is located over the array substrate and includes a third electrode, the liquid crystal layer over the third electrode, and a fourth electrode over the liquid crystal layer. The counter substrate is located over the fourth electrode.

公开(公告)号：US10739643B2

公开(公告)日：2020-08-11

申请号：US16542848

申请日：2019-08-16

Applicant: Japan Display Inc.

Inventor： Toshiharu Matsushima

IPC: G02F1/1337 ,  G02F1/1343

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：US20190294010A1

公开(公告)日：2019-09-26

申请号：US16434827

申请日：2019-06-07

Applicant: Japan Display Inc.

Inventor： Toshiharu Matsushima

IPC: G02F1/1343

Abstract: A display device includes an electrode layer and a liquid crystal layer. The electrode layer has a first electrode and a second electrode. The second electrode is opposed to the first electrode and having a plurality of openings extending in a same extending direction. The liquid crystal layer is disposed on the electrode layer. The liquid crystal molecules of the liquid crystal layer in a region in proximity to one side of the opening and liquid crystal molecules of the liquid crystal layer in a region in proximity to another side of the opening, the sides of the opening being opposed to each other in a width direction of the opening, are rotated in opposite directions from each other and aligned.

公开(公告)号：US10261364B2

公开(公告)日：2019-04-16

申请号：US15867260

申请日：2018-01-10

Applicant: Japan Display Inc.

Inventor： Toshiharu Matsushima

IPC: G02F1/1337 ,  G02F1/1343 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1362 ,  G02F1/1368

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：US20180341135A1

公开(公告)日：2018-11-29

申请号：US15955733

申请日：2018-04-18

Applicant: Japan Display Inc.

Inventor： Shunichi KIMURA ,  Toshiharu Matsushima

IPC: G02F1/1343 ,  G02F1/133 ,  G02F1/1335 ,  G09G3/36

Abstract: According to one embodiment, a first substrate includes a pixel electrode, a common electrode and a sub-pixel area including a first area and a second area. The first area includes an area where the pixel electrode exists, an axial area extending in a second direction, and branch areas extending from the axial area to a first side of the first direction. The second area includes an area where the pixel electrode does not exist, and a first gap area extending in the first direction, at a position between the adjacent branch areas. A maximum value of a first voltage applied to the pixel electrode in a first mode is higher than a maximum value of a second voltage applied to the pixel electrode in a second mode.

公开(公告)号：US10061168B2

公开(公告)日：2018-08-28

申请号：US15703306

申请日：2017-09-13

Applicant: Japan Display Inc.

Inventor： Toshiharu Matsushima ,  Keiji Takizawa ,  Toshinori Uehara

IPC: G02F1/1343 ,  G02F1/1335

CPC classification number: G02F1/134363 ,  G02F1/133514 ,  G02F2001/134345

Abstract: According to an aspect, a liquid crystal display device includes: a first substrate; a second substrate; a liquid crystal layer between the first and second substrates; pixels each including sub-pixels corresponding to different color areas; a first electrode in each sub-pixel; and a second electrode facing the first electrode. The first electrode includes an electrode base portion extending in a first direction; and a plurality of comb tooth portions extending in a second direction from the electrode base portion. A slit pitch of a sub-pixel in one color area and a slit pitch of a sub-pixel in the other color area of at least two color areas out of different color areas are different in size, each slit pitch corresponding to a gap between the comb tooth portions adjacent to each other.

公开(公告)号：US20180240424A1

公开(公告)日：2018-08-23

申请号：US15903664

申请日：2018-02-23

Applicant: Japan Display Inc.

Inventor： Yoshiro Aoki ,  Toshiharu Matsushima

IPC: G09G3/36 ,  G09G3/34

CPC classification number: G09G3/3648 ,  G09G3/3406 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2300/0426 ,  G09G2320/0252 ,  G09G2320/0271 ,  G09G2320/029 ,  G09G2340/16

Abstract: According to one embodiment, a display driver configured to control a display operation of an active-matrix display device, wherein the display device includes a display area in which liquid crystal pixels are arranged in a matrix form, a plurality of scanning lines arranged along rows, a plurality of signal lines arranged along columns, a plurality of switching elements arranged in the vicinities of positions at which the scanning lines and the signal lines intersect each other, and a backlight, and the display driver controls preparatory write of writing a signal of a predetermined gradation to the liquid crystal pixels, thereafter controls sequential write of an image signal to the liquid crystal pixels, and at the time after an elapse of a predetermined time from the preparatory write, makes the backlight light up.