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：US20240176173A1

公开(公告)日：2024-05-30

申请号：US18379437

申请日：2023-10-12

Applicant: Sharp Display Technology Corporation

Inventor： Takehisa YOSHIDA ,  Fumikazu SHIMOSHIKIRYOH

IPC: G02F1/13 ,  G02F1/1334 ,  G02F1/1335 ,  G02F1/13357

CPC classification number: G02F1/1323 ,  G02F1/1334 ,  G02F1/133512 ,  G02F1/133553 ,  G02F1/133615

Abstract: Provided are a liquid crystal panel capable of controlling a viewing angle with a reduced thickness and a liquid crystal display device including the liquid crystal panel. A liquid crystal panel including: a polymer dispersed liquid crystal layer; first light-shielding portions extending parallel to one another; second light-shielding portions extending parallel to one another in the same direction as the first light-shielding portions and located closer to a viewing surface side than the first light-shielding portions are.

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.

公开(公告)号：US20250028207A1

公开(公告)日：2025-01-23

申请号：US18763810

申请日：2024-07-03

Applicant: Sharp Display Technology Corporation

Inventor： Tsuyoshi OKAZAKI ,  Shinichi TERASHITA ,  Yuko TERAOKA ,  Kouichi WATANABE ,  Takehisa YOSHIDA ,  Yoshito HASHIMOTO

IPC: G02F1/1343 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/137

Abstract: A liquid crystal display device includes a first substrate, a second substrate, and a liquid crystal layer. The first substrate includes a reflective layer, a first electrode and a second electrode configured to generate a transverse electrical field in the liquid crystal layer, and a first horizontal alignment film. An electrode, of the first electrode and the second electrode, disposed on a side of the liquid crystal layer includes a plurality of belt-shaped portions and a slit positioned between two adjacent belt-shaped portions of the plurality of belt-shaped portions, the liquid crystal layer is constituted by a liquid crystal material including a liquid crystal molecule, the liquid crystal material is a positive type. The second substrate includes a second horizontal alignment film being in contact with the liquid crystal layer, and the liquid crystal layer takes a twist alignment when no voltage is applied.

公开(公告)号：US20250004589A1

公开(公告)日：2025-01-02

申请号：US18676503

申请日：2024-05-29

Applicant: Sharp Display Technology Corporation

Inventor： Fumikazu SHIMOSHIKIRYOH ,  Takehisa YOSHIDA ,  Shinichi TERASHITA ,  Kouichi WATANABE

IPC: G06F3/041 ,  G02F1/1362 ,  G02F1/1368 ,  G06F3/044

Abstract: A liquid crystal display device includes: a first substrate; a second substrate; a liquid crystal layer; a polarizer; and a phase difference layer, the liquid crystal display device further including a plurality of pixels arranged in a matrix, wherein each of the plurality of pixels includes a reflection region, the first substrate includes: a plurality of gate lines; a plurality of source lines; a plurality of thin film transistors; a plurality of pixel electrodes; and a reflective layer, the first substrate further includes: a plurality of touch sensor electrodes; and a plurality of touch lines each electrically connected to a corresponding one of the plurality of touch sensor electrodes, the reflective layer is divided into a plurality of reflective segments that are electrically independent from each other, and each of the plurality of reflective segments overlaps two or more of the plurality of pixel electrodes in a plan view.

公开(公告)号：US20240053644A1

公开(公告)日：2024-02-15

申请号：US18230205

申请日：2023-08-04

Applicant: Sharp Display Technology Corporation

Inventor： Takehisa YOSHIDA ,  Fumikazu SHIMOSHIKIRYOH

IPC: G02F1/1362 ,  G02F1/1368

CPC classification number: G02F1/136286 ,  G02F1/1368 ,  G02F1/136209

Abstract: A liquid crystal panel is a normally-black mode segment liquid crystal panel, and includes a plurality of pixels that are arrayed in substantial tessellation of an active region, as viewed from a direction of the normal of a first substrate, and a plurality of auxiliary electrodes that each have a portion that overlaps a gap between two pixels that are adjacent to each other, as viewed from the direction of the normal of the first substrate. A plurality of pixel electrodes, a common electrode, the plurality of auxiliary electrodes, and portions of a plurality of signal lines that are present in the active region are made of a transparent electroconductive material. The auxiliary electrodes are electrically connected to one of two pixel electrodes of the two pixels.