公开(公告)号：US20230221821A1

公开(公告)日：2023-07-13

申请号：US18093957

申请日：2023-01-06

Applicant: Japan Display Inc.

Inventor： Takayuki NAKANISHI

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0416

Abstract: A detection device includes: a sensor having a detection region; electrodes arrayed in a first direction and a second direction in the detection region; a detection circuit configured to generate detection values of the electrodes based on detection signals from the electrodes; and a processing circuit configured to generate spatial coordinates indicating a position of an object to be detected on or above the detection region. The spatial coordinates include first data indicating a position in the first direction, second data indicating a position in the second direction, and third data indicating a position in a third direction. The processing circuit acquires the first to third data based on the detection values and generates the spatial coordinates when at least one of the detection values is equal to or larger than a first threshold and smaller than a second threshold larger than the first threshold.

公开(公告)号：US11698560B2

公开(公告)日：2023-07-11

申请号：US17698317

申请日：2022-03-18

Applicant: Japan Display Inc.

Inventor： Hitoshi Tanaka ,  Kazuhide Mochizuki

IPC: G02F1/1368 ,  G02F1/1362 ,  H01L27/12 ,  H01L29/786 ,  G02F1/1343 ,  G02F1/136

CPC classification number: G02F1/1368 ,  G02F1/136209 ,  G02F1/136286 ,  H01L27/124 ,  H01L27/1225 ,  H01L29/7869 ,  H01L29/78633 ,  H01L29/78648 ,  G02F1/13606 ,  G02F1/13685 ,  G02F1/134363 ,  G02F1/136227 ,  G02F2202/10

Abstract: According to one embodiment, a display device includes a gate line extending in a first direction, first and second source lines crossing the gate line and arranged in the first direction, a first light-shielding layer having first and second openings, and an oxide semiconductor layer crossing the gate line, and in the display device, the first opening and the second opening are arranged in a second direction crossing the first direction between the first source line and the second source line, the gate line is located between the first opening and the second opening, and the oxide semiconductor layer has a first overlapping portion overlapping the first opening.

公开(公告)号：US11698555B2

公开(公告)日：2023-07-11

申请号：US17068039

申请日：2020-10-12

Applicant: Japan Display Inc.

Inventor： Tomohide Onogi ,  Yasuo Segawa

IPC: G02F1/1343 ,  G02F1/1362 ,  G02F1/1333 ,  G02F1/1368 ,  H01L27/12 ,  H01L29/786

CPC classification number: G02F1/134336 ,  G02F1/1368 ,  G02F1/13439 ,  G02F1/133345 ,  G02F1/134363 ,  G02F1/136227 ,  G02F1/136286 ,  H01L27/1222 ,  H01L27/1244 ,  H01L29/78669 ,  H01L29/78678 ,  G02F1/133357 ,  G02F1/134372 ,  G02F1/136295 ,  G02F2201/121 ,  G02F2201/123 ,  G02F2201/40 ,  G02F2202/103 ,  G02F2202/104

Abstract: A liquid crystal display device according to FFS technology is provided, which sufficiently provides a common electrode with common electric potential and improves an aperture ratio of pixels. A pixel electrode is formed of a first layer transparent electrode. A common electrode made of a second layer transparent electrode is formed above the pixel electrode interposing an insulation film between them. The common electrode in an upper layer is provided with a plurality of slits. The common electrode extends over all the pixels in a display region. An end of the common electrode is disposed on a periphery of the display region and connected with a peripheral common electric potential line that provides a common electric potential Vcom. There is provided neither an auxiliary common electrode line nor a pad electrode, both of which are provided in a liquid crystal display device according to a conventional art.

公开(公告)号：US11694454B2

公开(公告)日：2023-07-04

申请号：US17448386

申请日：2021-09-22

Applicant: Japan Display Inc.

Inventor： Masataka Ikeda

IPC: G06V20/80 ,  G06F3/041 ,  G06F3/044 ,  H04L9/32 ,  G06V20/00

CPC classification number: G06V20/80 ,  G06F3/044 ,  G06F3/04166 ,  H04L9/3278 ,  G06V20/95

Abstract: An information processing device comprises an electronic device, an averaging circuit acquiring output signals from the electronic device multiple times in a predetermined period and averaging the signals acquired multiple times, a memory circuit storing an averaged signal averaged by the averaging circuit and a PUF-ID extraction circuit generating a unique identifier based on the averaged signal.

公开(公告)号：US11693171B2

公开(公告)日：2023-07-04

申请号：US17970578

申请日：2022-10-21

Applicant: Japan Display Inc.

Inventor： Ken Onoda ,  Shinichi Komura ,  Koichi Okuda ,  Hiroaki Kijima

IPC: F21V8/00

CPC classification number: G02B6/0038 ,  G02B6/0068 ,  G02B6/0076

Abstract: According to one embodiment, a display device includes a display panel, a first light guide, and a second light guide. In the first light guide, a first main surface includes a first plane and first grooves between the first plane and a first side surface, a second main surface includes second grooves orthogonal to the first grooves, and a second plane between the second grooves and the first side surface. In the second light guide, a third main surface includes a third plane and third grooves located between the third plane and a fourth side surface, a fourth main surface includes fourth grooves orthogonal to the third grooves, and a fourth plane located between the fourth grooves and the fourth side surface.

公开(公告)号：US20230200690A1

公开(公告)日：2023-06-29

申请号：US18066423

申请日：2022-12-15

Applicant: Japan Display Inc.

Inventor： Yuta HAGA ,  Ayato KITAMURA

IPC: A61B5/1455

CPC classification number: A61B5/1455

Abstract: According to an aspect, a detection device includes: a sensor having a detection area divided into a plurality of partial detection areas; and a detector configured to extract, from among the partial detection areas, one or more partial detection areas in each of which a signal strength of data satisfying a predetermined condition is acquired, and acquire biometric data on an object to be detected based on detection signals detected in a biometric data acquisition area including the extracted one or more partial detection areas.

公开(公告)号：US11687178B2

公开(公告)日：2023-06-27

申请号：US17376917

申请日：2021-07-15

Applicant: Japan Display Inc.

Inventor： Koji Noguchi

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/36 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/1368

CPC classification number: G06F3/0412 ,  G06F3/0443 ,  G06F3/0445 ,  G06F3/0446 ,  G06F3/04164 ,  G06F3/04166 ,  G09G3/3648 ,  G02F1/1368 ,  G02F1/13338 ,  G02F1/13439 ,  G02F1/133514 ,  G02F1/134309 ,  G02F1/136286 ,  G02F2201/52 ,  G06F2203/04101 ,  G06F2203/04102 ,  G09G2354/00

Abstract: According to an aspect, a touch detection device includes: a first substrate; a second substrate opposed to the first substrate; a cover base material opposed to the second substrate; a plurality of first electrodes overlapping a display region on a plane parallel with the first substrate; and a second electrode arranged at the cover base material and overlapping a frame region outside the display region. Proximity or contact of an object with respect to the frame region is detected based on capacitance between the first electrodes and the second electrode. The second electrode extends along a side of the frame region.

公开(公告)号：US11686983B2

公开(公告)日：2023-06-27

申请号：US17899109

申请日：2022-08-30

Applicant: Japan Display Inc.

Inventor： Gen Koide

IPC: G02F1/1345 ,  G02F1/1362 ,  G02F1/1333 ,  G06F3/041 ,  G06F3/044 ,  H01L27/12 ,  G02F1/1368 ,  H01L29/786 ,  H10K59/40 ,  H10K59/131 ,  H10K59/121

CPC classification number: G02F1/13454 ,  G02F1/1368 ,  G02F1/13338 ,  G02F1/136286 ,  G06F3/0443 ,  G06F3/04164 ,  G06F3/04166 ,  H01L27/124 ,  H01L27/1222 ,  G06F2203/04101 ,  G06F2203/04102 ,  G06F2203/04107 ,  H01L29/78696 ,  H10K59/1213 ,  H10K59/131 ,  H10K59/1315 ,  H10K59/40

Abstract: A display device is provided and includes display unit comprising common electrodes two dimensionally arrayed on substrate, drive signal lines configured to transmit drive signals for touch detection to common electrodes, and switch circuit comprising transistors connected to drive signal lines to select at least one common electrode; flexible substrate connected to substrate; pads at connections of flexible substrate and substrate; and touch detection circuit configured to transmit drive signals to common electrodes, wherein: transistors comprises: first transistor connected to first electrode of common electrodes via first wiring of first length; and second transistor connected to second electrode of common electrodes via second wiring of second length; channel width of first transistor is narrower than channel width of second transistor; drive signal lines are respectively connected to pads separated at two or more positions.

公开(公告)号：US20230198522A1

公开(公告)日：2023-06-22

申请号：US18112465

申请日：2023-02-21

Applicant: Japan Display Inc.

Inventor： Akihiko Fujisawa, ,  Kaoru Ito ,  Daichi Abe

IPC: H03K17/96 ,  G06F3/04883 ,  G06F3/041

CPC classification number: H03K17/96 ,  G06F3/04883 ,  G06F3/0412 ,  G06F3/0448

Abstract: According to one embodiment, a display device includes a display area, a first sensor electrode, a second sensor electrode and a detector. The display area displays an image. The first sensor electrode is disposed in a peripheral area surrounding the display area. The second sensor electrode is disposed in the peripheral area and disposed adjacent to the first sensor electrode. The detector is electrically connected to the first sensor electrode and the second sensor electrode. The first sensor electrode and the second sensor electrode both have a body portion and a comb tooth portion having a plurality of linear electrodes. A comb tooth portion of the first sensor electrode and a comb tooth portion of the second sensor electrode are disposed at mutually different locations.

公开(公告)号：US20230194945A1

公开(公告)日：2023-06-22

申请号：US18084574

申请日：2022-12-20

Applicant: Japan Display Inc.

Inventor： Shimon ITAKURA ,  Yasuhiko YAMAGISHI ,  Tomohide OOHIRA

IPC: G02F1/137 ,  G02F1/1347

CPC classification number: G02F1/137 ,  G02F1/1347 ,  G02F1/133314

Abstract: According to one embodiment, a display device includes a liquid crystal display panel including a first effective area and a first non-display area, a dimming panel including a second effective area and a second non-display area, a plurality of first pixels provided in matrix in first and second directions intersecting each other in the first effective area, and a plurality of second pixels provided in matrix in the first direction and the second direction in the second effective area. Of the second pixels, the outermost pixel adjacent to the second non-display area overlaps the first non-display area.