公开(公告)号：US11972084B2

公开(公告)日：2024-04-30

申请号：US18079776

申请日：2022-12-12

Applicant: Sharp Display Technology Corporation

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

IPC: G06F3/044

CPC classification number: G06F3/0448 ,  G06F3/0443 ,  G06F2203/04105 ,  G06F2203/04107

Abstract: A touch panel system includes a touch panel, a cover member overlapping the touch panel, and a controller. The controller includes a position detection unit configured to detect a position of a pointer, based on a signal value obtained from a position detection electrode, an amplification processing unit configured to perform amplification processing on at least one signal value in a pressing force detection range corresponding to the position of the pointer detected by the position detection unit among signal values obtained from a pressing force detection electrode, and a pressing force detection unit configured to calculate magnitude of a pressing force generated by the pointer, based on a signal value after the amplification processing being a signal value in the pressing force detection range including a signal value obtained by amplification by the amplification processing unit.

公开(公告)号：US20240138212A1

公开(公告)日：2024-04-25

申请号：US18278404

申请日：2021-03-24

Applicant: Sharp Display Technology Corporation

Inventor： Takao SAITOH ,  Yohsuke KANZAKI ,  Masaki YAMANAKA ,  Masahiko MIWA ,  Yi SUN ,  Masaki FUJIWARA

IPC: H10K59/131 ,  H10K59/12 ,  H10K59/122 ,  H10K59/40 ,  H10K59/80

CPC classification number: H10K59/131 ,  H10K59/1201 ,  H10K59/122 ,  H10K59/40 ,  H10K59/873

Abstract: In an organic EL display device, a frame region provided outside a display region is provided with a damming wall extending on an outer periphery of the display region and a second lead-out wiring line extending across the damming wall from the display region side to an outside of the frame region. The damming wall includes a bank portion having a projecting shape and provided, in a part in which the second lead-out wiring line extends, on both sides in a direction in which the second lead-out wiring line extends with respect to a top portion of the damming wall. The bank portion is lower than a top portion of a second damming wall and forms, between the bank portion and the top portion, a trap portion having a recessed shape.

公开(公告)号：US20240136369A1

公开(公告)日：2024-04-25

申请号：US18373893

申请日：2023-09-26

Applicant: Sharp Display Technology Corporation

Inventor： Hidetoshi NAKAGAWA ,  Yoshihisa TAKAHASHI ,  Masahiro MATSUDA

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

CPC classification number: H01L27/1255 ,  G02F1/136259 ,  G02F1/1368 ,  G09G3/3674 ,  G09G2300/0413 ,  G09G2310/0286

Abstract: A display panel includes a display region defined by a plurality of pixels P and a peripheral region other than the display region. The display panel includes a gate drive circuit and a dummy capacitance portion in the peripheral region. The gate drive circuit includes a shift register. The dummy capacitance portion includes a plurality of capacitance elements connected in parallel and connected to a dummy stage. Each of the plurality of capacitance elements includes a first capacitance electrode, a second capacitance electrode, and a dielectric layer positioned between the first capacitance electrode and the second capacitance electrode. The dummy capacitance portion further includes at least one first connection portion with two ends respectively connected to the first capacitance electrode of any one of the plurality of capacitance elements and to the first capacitance electrode of any other one of the plurality of capacitance elements.

公开(公告)号：US11968858B2

公开(公告)日：2024-04-23

申请号：US17465053

申请日：2021-09-02

Applicant: Sharp Display Technology Corporation

Inventor： David James Montgomery ,  Hywel Hopkin

IPC: H10K59/122 ,  H10K50/818 ,  H10K50/828 ,  H10K59/35

CPC classification number: H10K59/122 ,  H10K50/818 ,  H10K50/828 ,  H10K59/353

Abstract: A top-emitting subpixel structure may include at least one bank structure defining a plurality of emissive areas, and an emissive structure located in each emissive area. The subpixel structure may have a subpixel length and a subpixel width less than the subpixel length, a ratio of the subpixel length to the subpixel width defining a subpixel aspect ratio. Each emissive area may have an emissive area length and an emissive area width shorter than the emissive area length, a ratio of the emissive area length to the emissive area width defining an emissive area aspect ratio. The subpixel length may define a primary axis when the subpixel aspect ratio is greater than the emissive area aspect ratio; otherwise, the emissive area length may define the primary axis. At least a majority of the emissive areas may be arranged successively widthwise along a secondary axis perpendicular to the primary axis.

公开(公告)号：US11953788B2

公开(公告)日：2024-04-09

申请号：US18132845

申请日：2023-04-10

Applicant: Sharp Display Technology Corporation

Inventor： Hiroyuki Hakoi

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

CPC classification number: G02F1/133753 ,  G02F1/133541 ,  G02F1/133638 ,  G02F1/133788 ,  G02F1/134336 ,  G02F1/13439

Abstract: A liquid crystal display device includes a first substrate, a second substrate located closer to an observer than the first substrate, and a liquid crystal layer provided between the first substrate and the second substrate, and performs display in a twisted vertical alignment mode. Each pixel includes a reflective region where display is performed in a reflection mode. The first substrate includes a reflective electrode including a portion located in the reflective region, and a first vertical alignment film. The second substrate includes a second vertical alignment film. The liquid crystal layer includes a liquid crystal material having negative dielectric anisotropy, and a chiral agent. The reflective electrode includes silver or a silver alloy. The reflective region includes a plurality of liquid crystal domains in which reference alignment azimuths of liquid crystal molecules are different from each other.

公开(公告)号：US11942056B2

公开(公告)日：2024-03-26

申请号：US17893631

申请日：2022-08-23

Applicant: Sharp Display Technology Corporation

Inventor： Shinji Tomokawa ,  Yasutomo Nishihara ,  Yohji Inui ,  Kohichi Ohhara ,  Katsutoshi Kikuchi

IPC: G09G3/36 ,  G02F1/13357 ,  G09G3/34

CPC classification number: G09G3/3648 ,  G02F1/1336 ,  G09G3/3406 ,  G09G2320/0233 ,  G09G2360/16

Abstract: A display device includes a lighting device, a display panel, a memory, and a correction circuit. The lighting device includes a light exit area defined into light exit sections corresponding to light sources. The display panel includes a display area disposed opposite the light exit area and including pixels. The memory stores data of pixel matrix linked to the display sections. The memory stores position data of the pixels that are not disposed opposite the corresponding light exit sections and deviation data when a position error is caused between the light exit area and the display area. The correction circuit is configured to determine whether the memory stores the position data of the pixels and link new pixel matrix units to the corresponding display sections based on the deviation data if a determination result is affirmative.

公开(公告)号：US11940696B2

公开(公告)日：2024-03-26

申请号：US18137402

申请日：2023-04-20

Applicant: Sharp Display Technology Corporation

Inventor： Takahiro Nemoto ,  Shogo Nishiwaki

IPC: G02F1/1343 ,  G02F1/1362 ,  G06F1/16 ,  H01L27/12

CPC classification number: G02F1/134309 ,  G02F1/13439 ,  G02F1/136286 ,  G06F1/163 ,  H01L27/124

Abstract: According to an aspect of the disclosure, a display device includes a first substrate, a second substrate, a first wire, a first electrode adjacent to the first wire and closer to the second substrate than the first wire, a second electrode closer to the second substrate than the first electrode and disposed to overlap the first wire and the first electrode, a first overlap section, disposed to overlap at least the first wire, that blocks light, and a third electrode closer to the second substrate than the first wire and further away from the second substate than the first electrode. A plurality of slits is formed in the second electrode, the plurality of slits being placed at spacings from one another and cutting across the first wire and the first electrode. The third electrode is disposed to overlap at least both the first wire and the slits.

公开(公告)号：US20240094577A1

公开(公告)日：2024-03-21

申请号：US18383548

申请日：2023-10-25

Applicant: Sharp Display Technology Corporation

Inventor： Koji MURATA ,  Yasuhiro HASEBA ,  Kazutaka HANAOKA ,  Kimiaki NAKAMURA ,  Mariko HONDA ,  Atsuko KANASHIMA ,  Tadashi HASEGAWA ,  Shinji SHIMADA

IPC: G02F1/1334 ,  G02F1/13357 ,  G02F1/1337 ,  G02F1/137

CPC classification number: G02F1/1334 ,  G02F1/133603 ,  G02F1/1337 ,  G02F1/13706

Abstract: Provided is a liquid crystal display device capable of switching between a transparent state and a scattering state, reducing or preventing a decrease in transmittance in the transparent state, and reducing or preventing a decrease in luminance in the panel central portion in the scattering state. The liquid crystal display device includes, sequentially from its viewing surface side toward its back surface side: a first liquid crystal panel; a light source; and a second liquid crystal panel, the first liquid crystal panel including a polymer dispersed liquid crystal containing a polymer network and liquid crystal components, the light source being configured to irradiate a back surface side main surface of the first liquid crystal panel with light from an oblique direction.

公开(公告)号：US11934073B2

公开(公告)日：2024-03-19

申请号：US18230205

申请日：2023-08-04

Applicant: Sharp Display Technology Corporation

Inventor： Takehisa Yoshida ,  Fumikazu Shimoshikiryoh

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

CPC classification number: G02F1/136286 ,  G02F1/134309 ,  G02F1/136209 ,  G02F1/1368

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.

公开(公告)号：US20240085752A1

公开(公告)日：2024-03-14

申请号：US18237501

申请日：2023-08-24

Applicant: Sharp Display Technology Corporation

Inventor： Atsushi HACHIYA ,  Hiroaki FURUKAWA ,  Yuhichi SAITOH

IPC: G02F1/1368 ,  G02F1/1362

CPC classification number: G02F1/13685 ,  G02F1/136286

Abstract: An active matrix substrate includes: a thin film transistor located in each pixel region; and a pixel electrode electrically coupled with the thin film transistor. The thin film transistor includes a lower gate electrode, a lower gate insulating layer, an oxide semiconductor layer, an upper gate insulating layer, and an upper gate electrode. The width of an upper gate line electrically coupled with the upper gate electrode is greater than the width of a lower gate line electrically coupled with the lower gate electrode.