公开(公告)号：US20250004332A1

公开(公告)日：2025-01-02

申请号：US18664285

申请日：2024-05-15

Applicant: Sharp Display Technology Corporation

Inventor： Takehisa YOSHIDA ,  Fumikazu SHIMOSHIKIRYOH ,  Shigeyuki YAMADA

IPC: G02F1/1343 ,  G02F1/1333

Abstract: A liquid crystal panel includes a first transparent substrate, a first electrode, a liquid crystal layer, a second electrode, and a second transparent substrate in this order, in which the liquid crystal layer contains polymer dispersed liquid crystal and/or guest-host liquid crystal containing a dichroic dye, and includes a transparent region and a switching region switched between a transmitting state and a scattering or absorption state by including an overlapping region overlapping the second electrode and a non-overlapping region not overlapping the second electrode.

公开(公告)号：US20240427200A1

公开(公告)日：2024-12-26

申请号：US18668387

申请日：2024-05-20

Applicant: Sharp Display Technology Corporation

Inventor： Takehisa YOSHIDA ,  Fumikazu SHIMOSHIKIRYOH ,  Shigeyuki YAMADA

IPC: G02F1/1343 ,  G02F1/1335

Abstract: Provided are a liquid crystal panel capable of controlling the viewing angle with less or no increase in thickness and a video display device including the liquid crystal panel. The video display device includes: a liquid crystal panel; and a display panel configured to display an image. The liquid crystal panel includes a first transparent substrate, a first electrode, a liquid crystal layer, a second electrode, an interlayer insulating film, a third electrode, and a second transparent substrate in the stated order. The liquid crystal layer includes an overlapping region overlapping the second electrode and a non-overlapping region not overlapping the second electrode, and thus includes a transparent region in a high transmission state and a switching region switchable between a high transmission state and a low transmission state. The liquid crystal layer is sandwiched between a pair of polarizing plates.

公开(公告)号：US20230037436A1

公开(公告)日：2023-02-09

申请号：US17867734

申请日：2022-07-19

Applicant: Sharp Display Technology Corporation

Inventor： Takehisa YOSHIDA ,  Fumikazu SHIMOSHIKIRYOH ,  Shigeyuki YAMADA

IPC: G02F1/1362

Abstract: A liquid crystal display device includes a display region, and includes a first liquid crystal panel including a color filter layer, an illumination device provided on a back face side of the first liquid crystal panel, and a second liquid crystal panel arranged between the first liquid crystal panel and the illumination device and not including a color filter layer. The second liquid crystal panel includes a first dimming region defined by a plurality of pixels arranged in a matrix including a plurality of rows and a plurality of columns and facing the display region, and a second dimming region that is defined by a plurality of additional pixels each including an unshaded opening region, and is located outside the first dimming region.