公开(公告)号：US20220334438A1

公开(公告)日：2022-10-20

申请号：US17715085

申请日：2022-04-07

Applicant: Sharp Display Technology Corporation

Inventor： Koji Murata ,  Kosuke Nagata ,  Kazutoshi Kida ,  Kazutaka Hanaoka ,  Shinji Shimada ,  Yasuhiro Haseba

IPC: G02F1/1343 ,  G02F1/1362 ,  G02F1/1333 ,  G02F1/13 ,  G06F3/041

Abstract: The liquid crystal display device includes a liquid crystal panel, the liquid crystal panel including sub-pixels and including an active matrix substrate and a counter substrate, the active matrix substrate including a gate line, a first electrode, and a second electrode, the counter substrate including a third electrode, each of the sub-pixels being provided with an optical opening, the third electrode including a linear electrode extending along the gate line, a distance between the linear electrode and the optical opening being less than D/4 and a width of the linear electrode being D/4 or less, wherein a distance between two optical openings adjacent in the direction perpendicular to the extending direction of the gate line is defined as D.

公开(公告)号：US12265307B2

公开(公告)日：2025-04-01

申请号：US18239090

申请日：2023-08-28

Applicant: Sharp Display Technology Corporation

Inventor： Koji Murata ,  Akira Hirai ,  Hiroshi Tsuchiya ,  Takashi Satoh ,  Akira Sakai ,  Shinji Shimada

IPC: G02F1/1362 ,  G02F1/13

Abstract: Provided is a liquid crystal display device including a liquid crystal panel including in the following order an active matrix substrate, a liquid crystal layer, and a counter substrate. The active matrix substrate includes in the following order a first electrode and a second electrode including a first linear electrode portion extending in a first direction. The counter substrate includes a third electrode including second linear electrode portions extending in a second direction crossing the first direction, and a fourth electrode including an island-shaped electrode portion as a floating electrode. The island-shaped electrode portion is disposed between the second linear electrode portions in a plan view, overlaps an optical aperture of one of two pixels adjacent to each other along the second direction, and does not overlap an optical aperture of the other of the two pixels.

公开(公告)号：US12159602B2

公开(公告)日：2024-12-03

申请号：US18126340

申请日：2023-03-24

Applicant: Sharp Display Technology Corporation

Inventor： Hiroshi Tsuchiya ,  Koji Murata ,  Takashi Satoh

IPC: G09G3/36

Abstract: A liquid crystal display device includes: an active matrix substrate including a first electrode and a second electrode configured to generate a transverse electrical field; a counter substrate including a plurality of third electrodes disposed at predetermined intervals and having a stripe pattern; a liquid crystal layer located between the active matrix substrate and the counter substrate; and a control circuit. The liquid crystal display device can display an image in a first viewing angle mode and a second viewing angle mode having a viewing angle narrower than the first viewing angle mode by the control circuit switching an amplitude and a waveform of a voltage applied to the third electrodes. The control circuit applies a common voltage having a different value to the first electrode or the second electrode in each of the first viewing angle mode and the second viewing angle mode.

公开(公告)号：US12066716B2

公开(公告)日：2024-08-20

申请号：US18126820

申请日：2023-03-27

Applicant: Sharp Display Technology Corporation

Inventor： Naru Usukura ,  Akiko Itoh ,  Koji Murata ,  Keisuke Yoshida

IPC: G02F1/13357 ,  G02F1/1335 ,  G02F1/1347 ,  G06F1/16

CPC classification number: G02F1/13362 ,  G02F1/133528 ,  G02F1/1347 ,  G06F1/1616

Abstract: An electronic device includes a first display panel including a first display surface, and a second display panel including a second display surface and configured to be disposed such that light emitted from the first display surface is incident on the second display surface. The first display panel is configured such that light emitted from the first display surface and incident on the second display surface includes a large amount of P-polarization components. The second display panel is a reflection-type display panel, and includes a polarizer disposed on the second display surface and configured to absorb S-polarization components of incident light.

公开(公告)号：US11988910B1

公开(公告)日：2024-05-21

申请号：US18379427

申请日：2023-10-12

Applicant: Sharp Display Technology Corporation

Inventor： Koji Murata ,  Junichi Masuda ,  Shugo Yagi ,  Akira Hirai ,  Hiroshi Tsuchiya ,  Takashi Satoh ,  Akira Sakai ,  Kiyoshi Minoura

IPC: G02F1/13 ,  G02F1/1335 ,  G02F1/1347

CPC classification number: G02F1/1323 ,  G02F1/133528 ,  G02F1/1347

Abstract: A viewing angle-controlling liquid crystal panel sequentially includes a first polarizing plate; a first liquid crystal panel; a second polarizing plate; a second liquid crystal panel; and a third polarizing plate, wherein an azimuthal angle φP1 of the absorption axis of the first polarizing plate, an azimuthal angle φ1 of a director of liquid crystal molecules near the first substrate and an azimuthal angle φ2 of a director of liquid crystal molecules near the second substrate in the first liquid crystal panel, an azimuthal angle φP2 of the absorption axis of the second polarizing plate, an azimuthal angle φ3 of a director of liquid crystal molecules near the third substrate and an azimuthal angle φ4 of a director of liquid crystal molecules near the fourth substrate in the second liquid crystal panel, and an azimuthal angle φP3 of the absorption axis of the third polarizing plate satisfy specific formulas.

公开(公告)号：US11914236B2

公开(公告)日：2024-02-27

申请号：US18092858

申请日：2023-01-03

Applicant: Sharp Display Technology Corporation

Inventor： Koji Murata ,  Hiroshi Tsuchiya ,  Shinpei Higashida ,  Takahiro Sasaki ,  Takashi Satoh ,  Shinji Shimada

IPC: G02F1/13 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/133 ,  G02F1/13357

CPC classification number: G02F1/1323 ,  G02F1/13306 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/134309 ,  G02F1/1336

Abstract: The liquid crystal display device of the present invention includes an active matrix substrate including a first electrode, a first insulating layer, and second electrodes including a first linear electrode; a color filter substrate including a black matrix, a color filter layer, a third electrode including second linear electrodes, and a fourth electrode which is a floating electrode. The third electrode and the fourth electrode are disposed between the black matrix and the liquid crystal layer. The second linear electrodes extend in a second direction and each overlap a portion of the black matrix extending in the second direction. The fourth electrode is disposed between the second linear electrodes and overlaps the black matrix in a plan view. The control circuit switches between application of driving voltage and application of constant voltage to the third electrode.

公开(公告)号：US11899305B2

公开(公告)日：2024-02-13

申请号：US17965816

申请日：2022-10-14

Applicant: Sharp Display Technology Corporation

Inventor： Koji Murata ,  Junichi Masuda ,  Shugo Yagi ,  Hiroshi Tsuchiya ,  Takashi Satoh ,  Shinji Shimada

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

CPC classification number: G02F1/133531 ,  G02F1/133514 ,  G02F1/133638 ,  G02F1/134363 ,  G02F1/134372

Abstract: Provided are a liquid crystal panel capable of achieving a small light-shielding angle in a narrow viewing angle mode and a display device including the liquid crystal panel. The liquid crystal panel sequentially includes: a first polarizing plate with a first absorption axis; a first substrate including a first electrode; a liquid crystal layer containing liquid crystal molecules; and a second substrate including a second electrode, wherein in a plan view, a director of the liquid crystal molecules with no voltage applied and the first absorption axis form an angle α of not smaller than 5° and not greater than 20° or not smaller than 65° and not greater than 80°.

公开(公告)号：US11698556B2

公开(公告)日：2023-07-11

申请号：US17715085

申请日：2022-04-07

Applicant: Sharp Display Technology Corporation

Inventor： Koji Murata ,  Kosuke Nagata ,  Kazutoshi Kida ,  Kazutaka Hanaoka ,  Shinji Shimada ,  Yasuhiro Haseba

IPC: G02F1/1343 ,  G02F1/1362 ,  G02F1/13 ,  G02F1/1333 ,  G06F3/041 ,  G06F3/044

CPC classification number: G02F1/134372 ,  G02F1/1323 ,  G02F1/13338 ,  G02F1/133345 ,  G02F1/134336 ,  G02F1/134345 ,  G02F1/136286 ,  G06F3/0412 ,  G06F3/0446

Abstract: The liquid crystal display device includes a liquid crystal panel, the liquid crystal panel including sub-pixels and including an active matrix substrate and a counter substrate, the active matrix substrate including a gate line, a first electrode, and a second electrode, the counter substrate including a third electrode, each of the sub-pixels being provided with an optical opening, the third electrode including a linear electrode extending along the gate line, a distance between the linear electrode and the optical opening being less than D/4 and a width of the linear electrode being D/4 or less, wherein a distance between two optical openings adjacent in the direction perpendicular to the extending direction of the gate line is defined as D.