公开(公告)号：US20240407229A1

公开(公告)日：2024-12-05

申请号：US18700199

申请日：2021-12-20

Applicant: Sharp Display Technology Corporation

Inventor： Makoto KITAGAWA

IPC: H10K59/80

Abstract: An organic EL display device includes an array substrate provided with a plurality of organic EL elements, a counter substrate facing the array substrate, and a sealing member configured to bond together the array substrate and the counter substrate. The sealing member includes, between the array substrate and the counter substrate, a dam member disposed surrounding a display region and a fill member filling a sealed space surrounded by the dam member. A panel body formed by bonding together the array substrate and the counter substrate includes a partition wall configured to partition the dam member and the fill member and a plurality of spacers configured to maintain a gap between the array substrate and the counter substrate.

公开(公告)号：US20240404486A1

公开(公告)日：2024-12-05

申请号：US18621439

申请日：2024-03-29

Applicant: Sharp Display Technology Corporation

Inventor： KAORU YAMAMOTO ,  KOHHEI TANAKA ,  Keiichi YAMAMOTO

IPC: G09G3/36 ,  G09G3/20

Abstract: In a first transition period during which an operation mode transitions from a normal mode to a low power consumption mode, a VCOM generation unit in a power source IC changes a potential of a common electrode drive voltage VCOM from a potential of a first level (for example, 5 V) to a potential of a second level (for example, 12 V) so that a leakage current flowing through a pixel transistor is not generated during a pause period, a gate driver changes a potential of each gate bus line to 0 V, and a source driver changes a potential of each source bus line to 0 V.

公开(公告)号：US20240402547A1

公开(公告)日：2024-12-05

申请号：US18622050

申请日：2024-03-29

Applicant: Sharp Display Technology Corporation

Inventor： Masahiro IMAI

IPC: G02F1/1345 ,  G02F1/1362 ,  H01L27/12

Abstract: A display device includes a display panel having a main surface including a display region and a non-display region, a driver, a first terminal provided at a position overlapping with the driver, a first wiring line connected to the first terminal, a second terminal provided at a position overlapping with the driver and being farther from the display region than the first terminal, and a second wiring line connected to the second terminal. The driver has a rectangular planar shape, and has a first side portion closest to the display region and a second side portion connected to the first side portion. The first wiring line extends from the first terminal and is disposed across the first side portion, and the second wiring line extends from the second terminal and is disposed across the second side portion.

公开(公告)号：US20240395973A1

公开(公告)日：2024-11-28

申请号：US18693000

申请日：2021-11-24

Applicant: Sharp Display Technology Corporation

Inventor： Shinichi HANDA

IPC: H01L33/38 ,  H01L25/075 ,  H01L25/16 ,  H01L33/40 ,  H01L33/62

Abstract: This display device includes a first light-emitting element and a second light-emitting element connected in series, and a third light-emitting element and a fourth light-emitting element connected in series. The first light-emitting element and the second light-emitting element share a second electrode formed in an upper layer above a first light-emitting layer and a second light-emitting layer, and the third light-emitting element and the fourth light-emitting element share a fourth electrode formed in an upper layer above a third light-emitting layer and a fourth light-emitting layer. The second electrode is an island-shaped electrode and functions as a cathode of one of the first light-emitting element and the second light-emitting element and an anode of the other, and the fourth electrode is an island-shaped electrode and functions as a cathode of one of the third light-emitting element and the fourth light-emitting element and an anode of the other.

公开(公告)号：US20240385708A1

公开(公告)日：2024-11-21

申请号：US18687302

申请日：2021-11-22

Applicant: Sharp Display Technology Corporation

Inventor： Tetsuo FUJITA ,  Tetsunori TANAKA ,  Yukinobu NAKATA

IPC: G06F3/041 ,  G06F3/044 ,  H10K59/131 ,  H10K59/40 ,  H10K59/80 ,  H10K102/00

Abstract: A display device includes: a substrate; an interlayer insulating layer configured to cover a plurality of wiring lines on the substrate; a light-emitting element on the interlayer insulating layer; a sealing layer configured to cover the light-emitting element; a first inorganic insulating layer configured to cover the sealing layer; a first detection electrode extending in a first direction on the first inorganic insulating layer; a second inorganic insulating layer configured to cover the first detection electrode and the first inorganic insulating layer; a second detection electrode extending in a direction intersecting the first direction on the second inorganic insulating layer; and a third inorganic insulating layer configured to cover the second detection electrode and the second inorganic insulating layer, wherein the first inorganic insulating layer, the second inorganic insulating layer, and the third inorganic insulating layer are provided with an opening in a region corresponding to a light-emitting region.

公开(公告)号：US20240361637A1

公开(公告)日：2024-10-31

申请号：US18614882

申请日：2024-03-25

Applicant: Sharp Display Technology Corporation

Inventor： Atsuyuki TANAKA

IPC: G02F1/1335

CPC classification number: G02F1/133614

Abstract: A light source includes a first wavelength conversion portion including a first green fluorescent material to wavelength-convert light emitted by a first light-emitting element to green light in a green wavelength region and a first red fluorescent material to wavelength-convert the light emitted by the first light-emitting element to red light in a red wavelength region, and a second wavelength conversion portion including a second green fluorescent material to wavelength-convert light emitted by the second light-emitting element to the green light and a second red fluorescent material to wavelength-convert the light emitted by the second light-emitting element to the red light. The first wavelength conversion portion and the second wavelength conversion portion differ from each other in either one or both of a quantity and a composition of the first green fluorescent material, the first red fluorescent material, the second green fluorescent material, and the second red fluorescent material.

公开(公告)号：US20240357882A1

公开(公告)日：2024-10-24

申请号：US18289315

申请日：2021-06-24

Applicant: Sharp Display Technology Corporation

Inventor： Yukio SHIMIZU ,  Shinzoh MURAKAMI

IPC: H10K59/131 ,  H10K59/80 ,  H10K77/10 ,  H10K102/00

CPC classification number: H10K59/131 ,  H10K59/8731 ,  H10K77/111 ,  H10K2102/311

Abstract: In a chip mounting portion, a plurality of chip terminals arranged in a row and a plurality of terminal wiring lines corresponding to the plurality of chip terminals, the plurality of terminal wiring lines extending parallel to one another and being electrically connected to the plurality of chip terminals, respectively, are provided. For at least one chip terminal of the plurality of chip terminals, a chip support body is provided at each terminal wiring line with the chip support body overlapping the terminal wiring line corresponding to the at least one chip terminal or an extension line of the terminal wiring line.

公开(公告)号：US20240355302A1

公开(公告)日：2024-10-24

申请号：US18604650

申请日：2024-03-14

Applicant: Sharp Display Technology Corporation

Inventor： Akira SHIBAZAKI ,  Tetsuya FUJIKAWA ,  Yusuke NISHIHARA

IPC: G09G3/36 ,  G09G3/3225

CPC classification number: G09G3/3614 ,  G09G3/3225 ,  G09G3/3648 ,  G09G2300/0426 ,  G09G2310/08

Abstract: A display device includes: a pixel electrode; a drive circuit configured to charge the pixel electrode in accordance with an image signal; and a control unit configured to control a timing when the drive circuit charges the pixel electrode, wherein, when a cycle in which the image signal is changed is changed from a first cycle to a second cycle that is longer than the first cycle, the control unit causes the drive circuit to charge the pixel electrode in accordance with an identical image signal more than once in one cycle in which the image signal is changed.

公开(公告)号：US20240355287A1

公开(公告)日：2024-10-24

申请号：US18683526

申请日：2021-09-30

Applicant: Sharp Display Technology Corporation

Inventor： Kohhei TANAKA ,  Masahito SANO ,  Kaoru YAMAMOTO ,  Ryo YONEBAYASHI ,  Adnan HEGANOVIC

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/06 ,  G09G2320/0247 ,  G09G2330/02

Abstract: When a current-driven display device with an internal compensation method operates in a pause driving mode, a non-light emission period according to a light emission duty is provided in both a refresh frame period and a non-refresh frame period, and an on-bias applying period for applying on-bias to a drive transistor in a pixel circuit is provided in both the non-light emission periods. In the non-light emission period in the refresh frame period, an on-bias applying period is provided in a period from when data writing with threshold compensation is performed to when the light emission period starts. Thus, even when the light emission duty is low, the difference in the stress state of the drive transistor between the refresh frame period and the non-refresh frame period is reduced.

公开(公告)号：US20240353952A1

公开(公告)日：2024-10-24

申请号：US18612162

申请日：2024-03-21

Applicant: Sharp Display Technology Corporation

Inventor： Takatoshi KIRA ,  Masayuki HATA

IPC: G06F3/041 ,  G06F3/045

CPC classification number: G06F3/04166 ,  G06F3/045

Abstract: A touch panel built-in display device comprises a touch coordinate detection circuit. The touch coordinate detection circuit, as to each detection electrode pair, determines presence or absence of a touch by a pointer at a coordinate in a second direction where the detection electrode pair is positioned, based on a total value or a difference value of a detection values of the detection electrode pair, and when determining that a touch is present, calculates a coordinate in the first direction of the touch by the pointer, based on a ratio of a detection value of a first detection electrode of the detection electrode pair at which a touch is determined to be present with respect to the total value of the detection electrode pair.