公开(公告)号：US11668976B2

公开(公告)日：2023-06-06

申请号：US17829425

申请日：2022-06-01

Applicant: Japan Display Inc.

Inventor： Masafumi Okada ,  Nobuyuki Suzuki ,  Makoto Hasegawa

IPC: G02F1/13357 ,  G02F1/1335

CPC classification number: G02F1/133603 ,  G02F1/133526 ,  G02F1/133607

Abstract: According to one embodiment, a light emitting device includes a light guide plate with a plurality of first protrusion parts arranged along a first direction and extending along a second direction which crosses the first direction, and a prism sheet, wherein a cross-sectional shape of each of the first protrusion parts along the first direction has an apex angle between 55 degrees and 65 degrees, inclusive, the light guide plate includes a plurality of second protrusion parts which extend along the first direction and are arranged along the second direction, and a cross-sectional shape of each of the second protrusion parts along the second direction has a base angle between 1 degree and 3 degrees, inclusive.

公开(公告)号：US11668972B2

公开(公告)日：2023-06-06

申请号：US17110374

申请日：2020-12-03

Applicant: Japan Display Inc.

Inventor： Akio Takimoto ,  Toshiki Kaneko ,  Takuo Kaitoh ,  Kazuhiro Nishiyama ,  Hiroyuki Kimura

IPC: G02F1/1335 ,  G02F1/1333

CPC classification number: G02F1/133553 ,  G02F1/13338 ,  G02F1/133514 ,  G02F1/133524 ,  G02F1/133528

Abstract: According to one embodiment, an electronic apparatus includes a camera, a liquid crystal panel including a display portion overlaid on the camera, a light guide having a first side surface and a main surface opposed to the liquid crystal panel and a first through hole, and a light source opposed to the first side surface. The camera is provided in the first through hole.

公开(公告)号：US20230169922A1

公开(公告)日：2023-06-01

申请号：US18104300

申请日：2023-02-01

Applicant: Japan Display Inc.

Inventor： Hajime WATAKABE ,  Kentaro MIURA ,  Masashi TSUBUKU

IPC: G09G3/3233

CPC classification number: G09G3/3233

Abstract: A display device including a substrate, a light-emitting element, a first transistor, and a second transistor, the first transistor including the first gate electrode on the substrate; a first insulating film on the first gate electrode, a first oxide semiconductor on the first insulating film, and having an area overlapping the first gate electrode, a second insulating film on the first oxide semiconductor, and a first conductive layer on the second insulating film, the second transistor including the first insulating film on the substrate, a second oxide semiconductor on the first insulating film, a second insulating film on the first oxide semiconductor and the second oxide semiconductor, and having a thickness smaller than a thickness of the first insulating film, a second gate electrode on the second insulating film, and having an area overlapping the second oxide semiconductor.

公开(公告)号：US20230168782A1

公开(公告)日：2023-06-01

申请号：US18104324

申请日：2023-02-01

Applicant: Japan Display Inc.

Inventor： Shouji NAGAO

IPC: G06F3/044 ,  G09G3/36 ,  G06F1/3234 ,  G06F3/041 ,  G06F3/047

CPC classification number: G06F3/0446 ,  G09G3/3696 ,  G06F1/3262 ,  G06F1/3265 ,  G06F3/0412 ,  G06F3/0445 ,  G06F3/044 ,  G06F3/047 ,  Y02D10/00 ,  Y02D30/50 ,  G09G2300/0426 ,  G09G2330/021

Abstract: In a liquid crystal display (LCD) device having a touch panel function, power consumption is reduced in the standby state. The display section is divided into blocks each of which is formed of a plurality of display lines. The counter electrode is disposed for each block. A driving circuit selectively supplies, to the counter electrode of each block, the voltage used for the liquid crystal display and the voltage used for the touch panel scanning. The driving circuit has a source amplifier that supplies the video voltages to the video lines. The driving circuit reduces the current in the source amplifier, such that the current is lower than current at the time of a normal operation, to lower the power consumption, and stops the operation of the source amplifier and supplies the GND voltage to the video lines to further lower the power consumption.

公开(公告)号：US20230168768A1

公开(公告)日：2023-06-01

申请号：US18070670

申请日：2022-11-29

Applicant: Japan Display Inc.

Inventor： Mitsuhiro SUGAWARA ,  Norio MAMBA

IPC: G06F3/041 ,  G11C19/28 ,  G09G3/20

CPC classification number: G06F3/04166 ,  G11C19/28 ,  G09G3/2096 ,  G09G2310/0286 ,  G09G2310/061

Abstract: A display device includes: pixels arranged in a display region; photodiodes provided in two or more of the pixels, respectively; a shift register circuit configured to sequentially output an output signal to the pixels and the photodiodes; a switching circuit configured to switch coupling between the shift register circuit and the pixels, and coupling between the shift register circuit and the photodiodes; and a control circuit configured to control a display period for display by the pixels and a detection period for detection by the photodiodes in a time division manner. The control circuit is configured to sequentially output a gate drive signal to the pixels by an operation of the shift register circuit and the switching circuit in the display period, and sequentially output a sensor control signal to the photodiodes by an operation of the shift register circuit and the switching circuit in the detection period.

公开(公告)号：US20230168542A1

公开(公告)日：2023-06-01

申请号：US18102284

申请日：2023-01-27

Applicant: Japan Display Inc.

Inventor： Yoshihiro SAKURAI ,  Hironao TANAKA ,  Harumi OKUNO ,  Takeo KOITO

IPC: G02F1/1337 ,  G02F1/1343

CPC classification number: G02F1/1337 ,  G02F1/134363 ,  G02F1/133707 ,  G02F1/134372 ,  G02F1/133749

Abstract: A liquid crystal panel is provided and includes first and second substrates with liquid crystal layer therebetween; and first electrode in display region; second electrode disposed between first electrode and first substrate; and alignment film having alignment direction, wherein first electrode has: pair of electrode branches; slit between pair of electrode branches; first and second connections connecting pair of electrode branches; wherein first electrode has areas including first and second bent portions, main portion disposed between first and second bent portions, wherein first bent portion is adjacent to contact hole of first electrode, wherein first and second bent portions are bent relative to main portion, and wherein direction of first bent portion is substantially parallel to direction of second bent portion.

公开(公告)号：US11656516B2

公开(公告)日：2023-05-23

申请号：US17707066

申请日：2022-03-29

Applicant: Japan Display Inc.

Inventor： Koichi Nagao

IPC: G02F1/13 ,  G02F1/1362 ,  G02F1/1365

CPC classification number: G02F1/136286 ,  G02F1/1365

Abstract: According to an aspect, a light adjustment device includes: a panel unit in which a plurality of light adjustment panels are stacked in a first direction, the light adjustment panels each including a first substrate and a second substrate, the first substrate including at least two terminal groups each including a plurality of terminals that are capable of being coupled to one flexible printed circuit board, the second substrate overlapping with the first substrate; and a plurality of flexible printed circuit boards each of which is coupled to one of the terminal groups of a corresponding one of the light adjustment panels. A plurality of the terminal groups are arranged in a second direction intersecting the first direction when the panel unit is viewed in the first direction, and the flexible printed circuit boards do not overlap with one another when viewed in the first direction.

公开(公告)号：US11656514B2

公开(公告)日：2023-05-23

申请号：US17851982

申请日：2022-06-28

Applicant: Japan Display Inc.

Inventor： Fumiya Kimura ,  Isao Suzumura

IPC: G02F1/1362 ,  G02F1/1343 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1339 ,  G02F1/1368 ,  G02F1/133 ,  G03F7/00

CPC classification number: G02F1/136227 ,  G02F1/1368 ,  G02F1/13394 ,  G02F1/13439 ,  G02F1/136213 ,  G02F1/13306 ,  G02F1/133345 ,  G02F1/133514 ,  G03F7/0007

Abstract: The purpose of the present invention is to obviate patterning defects of electrodes in through-holes formed in an organic passivation film for connection between TFTs and pixel electrodes in an ultra-high definition display device. To achieve the foregoing, the present invention has a configuration such as the following. This display device, in which a TFT (thin-film transistor) is formed on a substrate, an organic passivation film is formed covering the TFT, and a first pixel electrode, a first common electrode, a second pixel electrode, and a second common electrode are formed on the organic passivation film, is characterized in that the first pixel electrode is connected to the TFT via a through-hole formed in the organic passivation film, the through-hole is filled with a filler, and an end of the second pixel electrode is present on the upper side of the filler.

公开(公告)号：US11656488B2

公开(公告)日：2023-05-23

申请号：US17851110

申请日：2022-06-28

Applicant: Japan Display Inc.

Inventor： Arichika Ishida ,  Yasushi Kawata

IPC: G02F1/1333 ,  H01L51/00

CPC classification number: G02F1/1333 ,  G02F1/133305 ,  H01L51/0097 ,  G02F1/133302 ,  G02F1/133351 ,  G02F1/133354 ,  G02F2201/54 ,  H01L2924/0002 ,  Y02E10/549 ,  Y02P70/50 ,  H01L2924/0002 ,  H01L2924/00

Abstract: According to one embodiment, a display device includes a first substrate including a first resin substrate having a first thermal expansion coefficient, and a first barrier layer having a second thermal expansion coefficient which is lower than the first thermal expansion coefficient, a second substrate including a second resin substrate having a third thermal expansion coefficient which is equal to the first thermal expansion coefficient, and a second barrier layer having a fourth thermal expansion coefficient which is lower than the third thermal expansion coefficient and is equal to the first thermal expansion coefficient, and a display element located between the first resin substrate and the second resin substrate.

公开(公告)号：US20230152915A1

公开(公告)日：2023-05-18

申请号：US18098869

申请日：2023-01-19

Applicant: Japan Display Inc.

Inventor： Yoshihide OHUE ,  Yukiya HIRABAYASHI

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0412 ,  G06F3/0443

Abstract: A display device with a sensor in which deterioration of display quality is suppressed even when sensor wires are superimposed on respective slits of detection electrodes disposed side by side. The display device includes detection electrodes, sensor wires, pixels, scanning lines, and signal lines on a first insulating substrate. The detection electrodes are arrayed in a matrix in first and second directions. The sensor wires and signal lines are disposed alternately in the first direction and provided on the same layer. Switching elements of two of the pixels disposed side by side in the first direction each are coupled to one of the signal lines, and the signal line is superimposed on the corresponding detection electrode that straddles the two pixels. The sensor wires are disposed between the two pixels disposed side by side and superimposed on the respective slits of the two detection electrodes disposed side by side.