公开(公告)号：US12118164B2

公开(公告)日：2024-10-15

申请号：US18128214

申请日：2023-03-29

Applicant: Sharp Display Technology Corporation

Inventor： Takenori Maruyama ,  Kazutoshi Kida ,  Shinji Yamagishi ,  Takuma Yamamoto ,  Yasuhiro Sugita ,  Hiroshi Fukushima

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/0418 ,  G06F3/0445 ,  G06F3/0446 ,  G06F2203/04105 ,  G06F2203/04107

Abstract: A touch panel system includes a capacitive touch panel and a controller that controls the touch panel. The touch panel includes a plurality of drive electrodes and a plurality of floating island electrodes located on a first substrate and a plurality of pressure detection electrodes and a plurality of position detection electrodes located on a second substrate. The controller provides a drive signal to the drive electrodes and corrects a pressure detection signal obtained from each of the pressure detection electrodes by using a position detection signal obtained from the position detection electrode.

公开(公告)号：US12117705B2

公开(公告)日：2024-10-15

申请号：US18378090

申请日：2023-10-09

Applicant: Sharp Display Technology Corporation

Inventor： Masakatsu Tominaga

IPC: G02F1/1362 ,  G02F1/1343 ,  G09G3/36 ,  H01L27/12

CPC classification number: G02F1/13624 ,  G02F1/134336 ,  G02F1/134372 ,  G02F1/136213 ,  G02F1/136295 ,  G09G3/3648 ,  H01L27/124 ,  G02F2201/121

Abstract: A liquid crystal display apparatus includes a TFT substrate including first and second gate bus lines, source bus lines, and pixels and a liquid crystal layer. The pixel includes a pixel electrode, a common electrode, an auxiliary electrode, and first to third TFTs. The gates of the first and second TFTs are connected to one of the first and second gate bus lines, and the drains are connected to the pixel electrode and the auxiliary electrode, respectively. The gate of the third TFT is connected to the other of the first and second gate bus lines, and the source and drain of the third TFT are connected to the pixel electrode and the auxiliary electrode, respectively. Gate signals are applied to the first and second gate bus lines so that the TFTs connected to the first and second gate bus lines are turned on at different points in time.

公开(公告)号：US12117679B2

公开(公告)日：2024-10-15

申请号：US18097171

申请日：2023-01-13

Applicant: Sharp Display Technology Corporation

Inventor： Koji Murata ,  Hiroshi Tsuchiya ,  Shinpei Higashida ,  Takahiro Sasaki ,  Takashi Satoh ,  Shinji Shimada

IPC: G02F1/13 ,  F21V8/00 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/1362 ,  G02F1/137

CPC classification number: G02F1/1323 ,  G02B6/0038 ,  G02F1/133512 ,  G02F1/133514 ,  G02F1/134336 ,  G02F1/134345 ,  G02F1/13439 ,  G02F1/136286 ,  G02F1/137 ,  G02B2207/123

Abstract: Provided is a liquid crystal display device that can switch between the privacy mode and the public mode and achieve a high contrast ratio even during display in the privacy mode. The liquid crystal display panel includes: a liquid crystal panel; and a control circuit. The active matrix substrate sequentially includes a first substrate, a first electrode, a first insulating layer, and second electrodes each including a first linear electrode. The color filter substrate includes a second substrate, a black matrix, a color filter layer, a third electrode, and a fourth electrode which is disposed between the black matrix and the third electrode and to which constant voltage is applied. The third electrode includes second linear electrodes and overlaps a portion of the black matrix in a plan view. The control circuit switches between application of driving voltage and application of constant voltage to the third electrode.

公开(公告)号：US20240339440A1

公开(公告)日：2024-10-10

申请号：US18603263

申请日：2024-03-13

Applicant: Sharp Display Technology Corporation

Inventor： Kenya ITO ,  Yoshiyuki HARUMOTO

IPC: H01L25/075 ,  H01L33/58

CPC classification number: H01L25/0753 ,  H01L33/58 ,  H01L2933/0058

Abstract: Provided is a method of producing a micro-LED panel that can produce a micro-LED panel with excellent display quality by reducing misalignment of micro-LED chips and can achieve an increased yield. The method of producing a micro-LED panel includes: producing a micro-LED chip including a micro-LED, a first contact electrode, and a light blocking component; producing an array substrate including a switching element, a second contact electrode, and an insulating film; and placing the micro-LED chip on the array substrate. The light blocking component includes a bump with an inclined surface. The insulating film includes a dent with an inclined surface. The placing of the micro-LED chip includes electrically connecting the first contact electrode to the second contact electrode by making the bump of the light blocking component opposite to the dent of the insulating film.

公开(公告)号：US12112004B2

公开(公告)日：2024-10-08

申请号：US17972490

申请日：2022-10-24

Applicant: Sharp Display Technology Corporation

Inventor： Yohsuke Fujikawa

IPC: G06F3/041 ,  G02F1/1333 ,  G02F1/1362 ,  G02F1/1368 ,  G06F3/044

CPC classification number: G06F3/0443 ,  G02F1/136204 ,  G02F1/136286 ,  G02F1/1368

Abstract: An active matrix substrate includes a touch electrode disposed in a pixel region, a frame touch electrode disposed in a frame region, and a dummy array segment disposed in the frame region. The frame region includes a first dummy region, provided in a position adjacent to the pixel region, where the frame touch electrode is disposed and a second dummy region provided in a position opposite to the pixel region across the first dummy region. In the second dummy region, the frame touch electrode is not disposed, but the dummy array segment is disposed.

公开(公告)号：US12105392B2

公开(公告)日：2024-10-01

申请号：US18386111

申请日：2023-11-01

Applicant: Sharp Display Technology Corporation

Inventor： Takahiro Koshiba ,  Hiroto Akiyama

IPC: G09G3/36 ,  G02F1/1362 ,  G02F1/1368 ,  H01L27/12

CPC classification number: G02F1/1368 ,  G02F1/136286 ,  H01L27/124

Abstract: A display device includes a first pixel electrode, a first switching element, a first wiring, a second pixel electrode, a second switching element, a second wiring, a third wiring, a fourth wiring, a first insulating film, a second insulating film, and an alignment film, in which the first wiring includes a first lead-out portion disposed outside the display region and located on a lower layer side of the first insulating film, the second wiring includes a second lead-out portion disposed adjacent to the first lead-out portion outside the display region and located on a lower layer side of the second insulating film, the third wiring is located on the lower layer side of the first insulating film, and the fourth wiring is located on the lower layer side of the second insulating film on the upper layer side of the first insulating film.

公开(公告)号：US12105389B1

公开(公告)日：2024-10-01

申请号：US18594182

申请日：2024-03-04

Applicant: Sharp Display Technology Corporation

Inventor： Masakatsu Tominaga

IPC: G02F1/1362 ,  G02F1/1343 ,  G02F1/1368 ,  G09G3/36

CPC classification number: G02F1/136286 ,  G02F1/13624 ,  G02F1/1368 ,  G09G3/3677 ,  G02F1/134372 ,  G09G2320/0257

Abstract: A display panel including: a plurality of pixels arranged in a longitudinal direction and a lateral direction; a plurality of pixel electrodes; a common electrode; a first, second, third, and fourth gate lines extending in the lateral direction; and a first and second data lines, and a common line extending in the longitudinal direction, in which the plurality of pixels include a first pixel having a first pixel electrode and a second pixel adjacent to the first pixel in the lateral direction and having a second pixel electrode, the third gate line is arranged to overlap the first and the second pixel electrodes, the common line is arranged between the first and the second pixel electrodes, and the display panel further includes a first switching element connected to the first pixel electrode, the common line, and the third gate line, and a second switching element connected to the second pixel electrode, the common line, and the third gate line.

公开(公告)号：US20240324278A1

公开(公告)日：2024-09-26

申请号：US18574697

申请日：2021-08-16

Applicant: Sharp Display Technology Corporation

Inventor： Masanobu MIZUSAKI

IPC: H10K50/858 ,  H10K50/818 ,  H10K50/828 ,  H10K50/852 ,  H10K101/30

CPC classification number: H10K50/858 ,  H10K50/818 ,  H10K50/828 ,  H10K50/852 ,  H10K2101/30

Abstract: A hole generation layer has a hole transport material having a smaller refractive index than at least one of the refractive index of a lower light-emitting layer and the refractive index of an upper light-emitting layer, and the hole generation layer has an electron-accepting compound. An electron-accepting compound ratio is 10 to 50% inclusive, wherein the electron-accepting compound ratio is the weight ratio of the electron-accepting compound contained in the hole generation layer to the weight of the hole generation layer.

公开(公告)号：US20240292676A1

公开(公告)日：2024-08-29

申请号：US18574429

申请日：2021-08-18

Applicant: Sharp Display Technology Corporation

Inventor： Tadayoshi MIYAMOTO ,  Yoshinobu NAKAMURA ,  Toshihiro KANEKO

IPC: H10K59/124 ,  H10K59/12

CPC classification number: H10K59/124 ,  H10K59/1201

Abstract: A first TFT includes: a first semiconductor layer of a polysilicon; and a first gate electrode on the first semiconductor layer via a first gate insulating film. A second TFT includes: a first conductive layer and a second conductive layer made of the same material, and provided in the same layer, as the first semiconductor layer; a second semiconductor layer of an oxide semiconductor on the first conductive layer and the second conductive layer; and a second gate electrode on the second semiconductor layer via the second gate insulating film.

公开(公告)号：US20240290293A1

公开(公告)日：2024-08-29

申请号：US18406439

申请日：2024-01-08

Applicant: Sharp Display Technology Corporation

Inventor： Masakatsu TOMINAGA

IPC: G09G3/36

CPC classification number: G09G3/3659 ,  G09G2300/0426 ,  G09G2310/0213 ,  G09G2310/0278

Abstract: A liquid crystal display device includes a display region including a first and second region adjacent in a first direction, a substrate with a width of the second region in the first direction being greater than a width of the first region, a plurality of first and second gate bus lines extending in a second direction and arranged in the first and second regions, and a first and second gate driver connected to the plurality of first and second gate bus lines, respectively. A first scanning period in which the first gate driver scans the first gate bus lines overlaps a part of a second scanning period in which the second gate driver scans the second gate bus lines.