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：US20240402544A1

公开(公告)日：2024-12-05

申请号：US18611957

申请日：2024-03-21

Applicant: Sharp Display Technology Corporation

Inventor： Masahiro IMAI ,  Yasuyoshi KAISE ,  Takahiro YAMAGUCHI ,  Fumikazu SHIMOSHIKIRYOH

IPC: G02F1/1343 ,  G02F1/133 ,  G02F1/1362 ,  G02F1/1368

Abstract: A plurality of pixel electrodes each forming one pixel are provided on a TFT substrate. A size of a pixel electrode located at a boundary portion between a non-rectangular active area and a frame region, which is an area outside the active area, is smaller than a size of a pixel electrode not located at the boundary portion. In such a configuration, a voltage is always applied to the plurality of pixel electrodes.

公开(公告)号：US20240168327A1

公开(公告)日：2024-05-23

申请号：US18378856

申请日：2023-10-11

Applicant: Sharp Display Technology Corporation

Inventor： Fumikazu SHIMOSHIKIRYOH ,  Shinichi TERASHITA ,  Kouichi WATANABE

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

CPC classification number: G02F1/133553 ,  G02F1/133345 ,  G02F1/133738 ,  G02F1/136227 ,  G02F1/1368 ,  G02F1/13439 ,  G02F2203/02

Abstract: A liquid crystal display device includes a first substrate, a second substrate disposed more to a viewer side than the first substrate, and a liquid crystal layer provided between the first substrate and the second substrate, with a plurality of pixels being arrayed in a matrix shape. Each pixel includes a reflective region for display in a reflection mode. The first substrate includes a thin film transistor provided corresponding to each pixel, a pixel electrode electrically connected to the thin film transistor, and a reflective layer located at least in the reflective region. The first substrate further includes a common electrode adjacent to the pixel electrode with a dielectric layer interposed between the pixel electrode and the common electrode. At least one from among the pixel electrode and the common electrode includes at least one slit.

公开(公告)号：US20230333428A1

公开(公告)日：2023-10-19

申请号：US18133981

申请日：2023-04-12

Applicant: Sharp Display Technology Corporation

Inventor： Shinichi TERASHITA ,  Kouichi WATANABE ,  Fumikazu SHIMOSHIKIRYOH

IPC: G02F1/1335 ,  G02F1/1343 ,  G02F1/1337 ,  G02F1/139 ,  G09G3/34

CPC classification number: G02F1/133622 ,  G02F1/134336 ,  G02F1/133746 ,  G02F1/1396 ,  G02F1/133742 ,  G09G3/3413 ,  G02F2203/01 ,  G02F2203/64 ,  G02F2202/40 ,  G02F2201/52 ,  G09G2300/0491 ,  G09G2310/0235

Abstract: Provided is a liquid crystal display device that can achieve high-speed response in both rise time and fall time and has a high transmittance, a high contrast ratio, and excellent viewing angle characteristics. The liquid crystal display device provides color display using a field sequential driving system where each frame period includes subframe periods and includes: a liquid crystal display panel; a light source that irradiates the liquid crystal display panel with lights of multiple colors; and a controller that drives the light source to time-divisionally irradiate the liquid crystal display panel with the lights of multiple colors. The liquid crystal display panel includes, sequentially in the following order: a first substrate including pixel electrodes; a first alignment film; a liquid crystal layer; a second alignment film; and a second substrate including a common electrode.

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：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：US20240427201A1

公开(公告)日：2024-12-26

申请号：US18669281

申请日：2024-05-20

Applicant: Sharp Display Technology Corporation

Inventor： Kouichi WATANABE ,  Shinichi TERASHITA ,  Fumikazu SHIMOSHIKIRYOH

IPC: G02F1/1343 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/1337 ,  G02F1/137

Abstract: To provide a liquid crystal display device including a plurality of pixels arrayed in a matrix shape that 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 capable of generating a transverse electrical field in the liquid crystal layer, and a first horizontal alignment film, at least one of the first electrode and the second electrode includes a plurality of belt-shaped portions and a slit located between two adjacent belt-shaped portions of the plurality of belt-shaped portions, in each pixel, the plurality of belt-shaped portions have a linear shape extending substantially parallel to each other and in the same direction, and do not include a bending part, the second substrate includes a second horizontal alignment film and the liquid crystal layer takes a twist alignment when no voltage is applied.

公开(公告)号：US20240427205A1

公开(公告)日：2024-12-26

申请号：US18824561

申请日：2024-09-04

Applicant: Sharp Display Technology Corporation

Inventor： Fumikazu SHIMOSHIKIRYOH

IPC: G02F1/1362 ,  G02F1/1347

Abstract: The display device includes: a color display element including pixels that are arranged in a row direction and in a column direction and each include sub-pixels of different colors; and a liquid crystal display panel stacked with the color display element, the liquid crystal display panel including a TFT substrate, a counter substrate, and a liquid crystal layer, the TFT substrate including first bus lines extending in a first direction, second bus lines extending in a second direction intersecting the first direction, and display electrodes each at a position corresponding to an intersection of one of the first bus lines and one of the second bus lines, at least one of the first bus lines and at least one of the second bus lines each overlapping at least some sub-pixels of all colors among the sub-pixels of different colors of the color display element in a plan view.

公开(公告)号：US20240361653A1

公开(公告)日：2024-10-31

申请号：US18616246

申请日：2024-03-26

Applicant: Sharp Display Technology Corporation

Inventor： Fumikazu SHIMOSHIKIRYOH

IPC: G02F1/1362 ,  G02F1/133 ,  G02F1/1343

CPC classification number: G02F1/136286 ,  G02F1/13306 ,  G02F1/13439 ,  G02F1/13454 ,  G02F1/136272 ,  G02F2201/123 ,  G02F2201/52

Abstract: A display device includes a substrate including a display region including three or more divided regions disposed in a first direction on a main surface, a scanning line extending in a first direction, a data line extending in a second direction, a plurality of pixels, and a scanning line connection wiring line extending in the second direction, which are disposed in each divided region, a plurality of data line drive circuits respectively connected to the data lines in each divided region, and a plurality of scanning line drive circuits corresponding to each divided region. The scanning line drive circuits and the data line drive circuits are respectively arrayed in the first direction outside the display region, each of the scanning line connection wiring lines electrically connects the scanning line drive circuit to the scanning line, and the scanning line drive circuit and the data line drive circuit display an image in at least one of the three or more divided regions at a frame frequency different from that in the other divided regions.

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.