公开(公告)号：US20240295787A1

公开(公告)日：2024-09-05

申请号：US18433752

申请日：2024-02-06

Applicant: Sharp Display Technology Corporation

Inventor： Seiichi UCHIDA ,  Kuniaki Okada ,  Hiromi Katoh ,  Keisuke Yoshida

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

CPC classification number: G02F1/1368 ,  G02F1/136209 ,  G02F1/136222 ,  G02F1/136227 ,  H01L27/124 ,  H01L27/1248

Abstract: An active matrix substrate includes: a support substrate; and a plurality of pixels located on the support substrate, in which each of the plurality of pixels includes: a thin film transistor; a first color filter layer; a contact hole provided in the first color filter layer; and a pixel electrode electrically coupled to the thin film transistor through the contact hole, and has a second color filter layer in the contact hole, the plurality of pixels include a first pixel, and in the first pixel, the first color filter layer transmits light in a first wavelength band and the second color filter layer transmits the light in the first wavelength band or transmits either the light in the first wavelength band or another light when a layer for transmitting the other light is provided around the contact hole.

公开(公告)号：US12021086B2

公开(公告)日：2024-06-25

申请号：US18238124

申请日：2023-08-25

Applicant: Sharp Display Technology Corporation

Inventor： Kuniaki Okada ,  Shinpei Higashida

IPC: H01L27/12 ,  G02F1/1362 ,  G02B27/01

CPC classification number: H01L27/1218 ,  G02F1/136286 ,  G02B27/0172

Abstract: An active matrix substrate includes a substrate and a plurality of pixels located on the substrate. Each of the pixels includes an oxide semiconductor layer, a first insulator covering the oxide semiconductor layer, a first contact hole located at the first insulator, a first extraction electrode located on the first insulator and in the first contact hole, and connected to the oxide semiconductor layer, a second insulator covering the first extraction electrode, a second contact hole located at the second insulator, a second extraction electrode located on the second insulator and in the second contact hole, and connected to the first extraction electrode, and a pixel electrode connected to the second extraction electrode. The first and second extraction electrodes are light-transmissive, and a portion of a side surface of at least one of the first and second contact holes is not covered with the first and second extraction electrodes.

公开(公告)号：US12164189B2

公开(公告)日：2024-12-10

申请号：US18233537

申请日：2023-08-14

Applicant: Sharp Display Technology Corporation

Inventor： Seiichi Uchida ,  Kuniaki Okada ,  Keisuke Yoshida

IPC: G02F1/1335 ,  G02F1/1339

Abstract: Provided are a liquid crystal panel which has good visibility and in which a decrease in the display quality is sufficiently suppressed, and a head mounted display and a liquid crystal display device using the same. The liquid crystal panel includes a liquid crystal layer, a spacer, and a light-shielding section between a first substrate a second substrate facing the first substrate. The light-shielding section includes column-direction light-shielding sections arranged in a column direction and shielding parts between the pixels aligned in a row direction from light, and row-direction light-shielding sections arranged in the row direction and shielding parts between the pixels aligned in the column direction from light. The row-direction light-shielding sections include one that includes a first light-shielding section including an arrangement region of the spacer and a second light-shielding section adjacent to the first light-shielding section in the column direction.

公开(公告)号：US20240255822A1

公开(公告)日：2024-08-01

申请号：US18631940

申请日：2024-04-10

Applicant: Sharp Display Technology Corporation

Inventor： Atsushi HACHIYA ,  Hiroaki Furukawa ,  Yuhichi Saitoh ,  Kuniaki Okada

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

CPC classification number: G02F1/1368 ,  G02F1/134309 ,  G02F1/136286 ,  H01L27/124 ,  G02F1/133345 ,  G02F1/133388 ,  G02F1/13439 ,  G02F2201/48 ,  G02F2202/105 ,  G02F2202/16

Abstract: An active matrix substrate includes a first TFT disposed in each of pixel regions, a first flattened layer covering the first TFT, and a pixel electrode provided on the first flattened layer. The first TFT 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 active matrix substrate further includes a first connection electrode for electrically connecting a drain contact region of the oxide semiconductor layer and the pixel electrode. The first flattened layer includes a pixel contact hole formed so as to expose a part of the first connection electrode. The bottom face of the pixel contact hole at least partially overlaps, of a lower gate metal layer including a lower gate electrode and an upper gate metal layer including an upper gate electrode, at least the lower gate metal layer when viewed from the normal direction of the substrate. The first connection electrode is formed from a transparent conductive material.

公开(公告)号：US11971641B2

公开(公告)日：2024-04-30

申请号：US17978312

申请日：2022-11-01

Applicant: Sharp Display Technology Corporation

Inventor： Atsushi Hachiya ,  Hiroaki Furukawa ,  Yuhichi Saitoh ,  Kuniaki Okada

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

CPC classification number: G02F1/1368 ,  G02F1/134309 ,  G02F1/136286 ,  H01L27/124 ,  G02F1/133345 ,  G02F1/133388 ,  G02F1/13439 ,  G02F2201/48 ,  G02F2202/105 ,  G02F2202/16

Abstract: An active matrix substrate includes a first TFT disposed in each of pixel regions, a first flattened layer covering the first TFT, and a pixel electrode provided on the first flattened layer. The first TFT 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 active matrix substrate further includes a first connection electrode for electrically connecting a drain contact region of the oxide semiconductor layer and the pixel electrode. The first flattened layer includes a pixel contact hole formed so as to expose a part of the first connection electrode. The bottom face of the pixel contact hole at least partially overlaps, of a lower gate metal layer including a lower gate electrode and an upper gate metal layer including an upper gate electrode, at least the lower gate metal layer when viewed from the normal direction of the substrate. The first connection electrode is formed from a transparent conductive material.

公开(公告)号：US12147138B2

公开(公告)日：2024-11-19

申请号：US18197014

申请日：2023-05-12

Applicant: Sharp Display Technology Corporation

Inventor： Seiichi Uchida ,  Kiyoshi Minoura ,  Kuniaki Okada ,  Hiromi Katoh ,  Keisuke Yoshida

IPC: G02F1/1368 ,  G02F1/1362

Abstract: An active matrix substrate includes a substrate that is transparent, and a plurality of pixels positioned on the substrate. Each pixel includes a thin-film transistor (TFT) positioned on the substrate, a first color filter layer disposed on the substrate so as to cover the TFT, a contact hole being provided in the first color filter layer, a pixel electrode that is positioned on a bottom face and a side face of the contact hole, and on the first color filter layer, and that is electrically connected to the TFT via the contact hole, and a second color filter layer disposed within the contact hole.