公开(公告)号：US10943966B2

公开(公告)日：2021-03-09

申请号：US16593069

申请日：2019-10-04

Applicant: Japan Display Inc.

Inventor： Tetsuo Morita ,  Hiroyuki Kimura ,  Makoto Shibusawa ,  Hiroshi Tabatake ,  Yasuhiro Ogawa

IPC: H01L27/32 ,  H01L27/12 ,  H01L29/417 ,  H01L29/786

Abstract: Provided is a display device including a plurality of pixels at least one of which has a first transistor and a light-emitting element. The first transistor includes a gate electrode, a gate insulating film over the gate electrode, an oxide semiconductor film over the gate insulating film, and a first terminal and a second terminal electrically connected to the semiconductor film. The second terminal is electrically connected to the light-emitting element. A region in which the first terminal overlaps with the gate electrode can be smaller than a region in which the second terminal overlaps with the gate electrode.

公开(公告)号：US20190251903A1

公开(公告)日：2019-08-15

申请号：US16394113

申请日：2019-04-25

Applicant: Japan Display Inc.

Inventor： Tetsuo MORITA ,  Hiroyuki Kimura ,  Makoto Shibusawa ,  Hiroshi Tabatake ,  Yasuhiro Ogawa

IPC: G09G3/3233 ,  G02F1/1345 ,  H01L27/12 ,  H01L27/32 ,  H01L29/786

CPC classification number: G09G3/3233 ,  G02F1/13452 ,  G02F1/13454 ,  G02F1/13624 ,  G02F1/136286 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0256 ,  G09G2320/0238 ,  H01L27/1225 ,  H01L27/1251 ,  H01L27/1255 ,  H01L27/3262 ,  H01L27/3272 ,  H01L29/7869

Abstract: Disclosed is a display device including: a driving transistor, a first switching transistor, and a pixel transistor each having a gate and a pair of terminals; a storage capacitor having a pair of terminals; and a light-emitting element having an input terminal and an output terminal. One terminal of the driving transistor is electrically connected to one terminal of the pixel transistor. The other terminal of the driving transistor is electrically connected to one terminal of the first switching transistor and the input terminal of the light-emitting element. The other terminal of the first switching transistor is electrically connected to the gate of the driving transistor and one terminal of the capacitor. The one terminal of the capacitor overlaps with an active region of the driving transistor.

公开(公告)号：US10319297B2

公开(公告)日：2019-06-11

申请号：US15670241

申请日：2017-08-07

Applicant: Japan Display Inc.

Inventor： Tetsuo Morita ,  Hiroyuki Kimura ,  Makoto Shibusawa ,  Hiroshi Tabatake ,  Yasuhiro Ogawa

IPC: H01L27/32 ,  H01L29/786 ,  H01L51/50 ,  G09G3/3233 ,  G02F1/1345 ,  H01L27/12 ,  G02F1/1362

Abstract: Disclosed is a display device including: a driving transistor, a first switching transistor, and a pixel transistor each having a gate and a pair of terminals; a storage capacitor having a pair of terminals; and a light-emitting element having an input terminal and an output terminal. One terminal of the driving transistor is electrically connected to one terminal of the pixel transistor. The other terminal of the driving transistor is electrically connected to one terminal of the first switching transistor and the input terminal of the light-emitting element. The other terminal of the first switching transistor is electrically connected to the gate of the driving transistor and one terminal of the capacitor. The one terminal of the capacitor overlaps with an active region of the driving transistor.

公开(公告)号：US10096283B2

公开(公告)日：2018-10-09

申请号：US15365428

申请日：2016-11-30

Applicant: Japan Display Inc.

Inventor： Kazuyoshi Omata ,  Hiroyuki Kimura ,  Makoto Shibusawa ,  Hiroshi Tabatake

IPC: G09G3/32 ,  H01L27/32 ,  H01L51/52 ,  G09G3/325 ,  H05B33/08 ,  G09G3/3233 ,  G09G3/20 ,  G09G3/3258 ,  H01L27/12

Abstract: According to one embodiment, a display apparatus includes a plurality of semiconductor layers, a first insulation film, a first conductive layer, a second insulation film and a display element includes a second conductive layer. The first conductive layer and the second conductive layer are opposed to each other to form a capacitance unit.

公开(公告)号：US09542890B2

公开(公告)日：2017-01-10

申请号：US14554614

申请日：2014-11-26

Applicant: Japan Display Inc.

Inventor： Hiroshi Nakayama ,  Tetsuo Morita ,  Hiroyuki Kimura ,  Makoto Shibusawa

IPC: G09G3/30 ,  G09G3/32

CPC classification number: G09G3/3266 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/066 ,  G09G2320/0233

Abstract: According to one embodiment, a display device includes a plurality of pixel units which each includes a light-emitting element and a pixel circuit, a plurality of first scan lines and second scan lines, a plurality of video signal lines, a controller which controls a scan line drive circuit and a signal line drive circuit, wherein the pixel circuit comprises an output switch, a drive transistor, a capacitance, and a pixel switch, wherein the controller controls a reset operation, a cancellation operation, a correction operation, and a light-emitting operation, and the controller deforms a waveform of a control signal which is supplied from the second scan line in a manner that a time of transitioning the pixel switch from an on-state to an off-state is longer than the time of transitioning by a non-deformed control signal, when writing the video voltage signal in the correction operation.

Abstract translation: 根据一个实施例，显示装置包括多个像素单元，每个像素单元包括发光元件和像素电路，多个第一扫描线和第二扫描线，多个视频信号线，控制器 扫描线驱动电路和信号线驱动电路，其中所述像素电路包括输出开关，驱动晶体管，电容和像素开关，其中所述控制器控制复位操作，取消操作，校正操作和 发光操作，并且控制器使从第二扫描线提供的控制信号的波形以使得像素开关从导通状态转换到截止状态的时间长于时间 当在校正操作中写入视频电压信号时，通过非变形控制信号转换。

公开(公告)号：US09542888B2

公开(公告)日：2017-01-10

申请号：US15167401

申请日：2016-05-27

Applicant: Japan Display Inc.

Inventor： Kazuyoshi Omata ,  Hiroyuki Kimura ,  Makoto Shibusawa ,  Hiroshi Tabatake

IPC: G09G3/30 ,  G09G3/32 ,  G09G3/20 ,  H01L27/32 ,  H01L27/12

CPC classification number: G09G3/325 ,  G09G3/2003 ,  G09G3/32 ,  G09G3/3233 ,  G09G3/3258 ,  G09G2300/0426 ,  G09G2300/0452 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0262 ,  G09G2320/0233 ,  G09G2320/0252 ,  G09G2320/043 ,  H01L27/124 ,  H01L27/1255 ,  H01L27/3213 ,  H01L27/3248 ,  H01L27/3262 ,  H01L27/3265 ,  H01L27/3276 ,  H05B33/08 ,  H05B33/086 ,  H05B33/0896

Abstract: According to one embodiment, a display apparatus includes a plurality of semiconductor layers, a first insulation film, a first conductive layer, a second insulation film and a display element includes a second conductive layer. The first conductive layer and the second conductive layer are opposed to each other to form a capacitance unit.

Abstract translation: 根据一个实施例，显示装置包括多个半导体层，第一绝缘膜，第一导电层，第二绝缘膜和显示元件包括第二导电层。 第一导电层和第二导电层彼此相对以形成电容单元。

公开(公告)号：US11815774B2

公开(公告)日：2023-11-14

申请号：US17666831

申请日：2022-02-08

Applicant: Japan Display Inc.

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

IPC: G02F1/1362 ,  H04M1/02

CPC classification number: G02F1/136286 ,  G02F1/136209 ,  H04M1/0264

Abstract: According to one embodiment, an electronic device includes a liquid crystal panel and a camera. The liquid crystal panel includes a display area and an incident light control area. The display area includes a pixel electrode. The camera overlaps the incident light control area. The incident light control area includes an annular line, and a control electrode formed inside the annular line to be connected to the annular line. A time to apply a voltage to the control electrode is shorter than a time to apply a voltage to the pixel electrode.

公开(公告)号：US11532649B2

公开(公告)日：2022-12-20

申请号：US16952455

申请日：2020-11-19

Applicant: Japan Display Inc.

Inventor： Tetsuo Morita ,  Hiroyuki Kimura ,  Makoto Shibusawa ,  Hiroshi Tabatake ,  Yasuhiro Ogawa

IPC: H01L29/10 ,  H01L27/12 ,  H01L27/13 ,  H01L29/786 ,  G02F1/1362 ,  G02F1/1368 ,  H01L27/32

Abstract: Provided is a display device including: a capacitor having a first electrode, a first insulating film over the first electrode, and a second electrode over the first insulating film; and a first transistor over the capacitor. The first transistor includes the second electrode a second insulating film over the second electrode, an oxide semiconductor film over the second insulating film, and a first source electrode and a first drain electrode over the oxide semiconductor film. The first source electrode and the first drain electrode are electrically connected to the oxide semiconductor film.

公开(公告)号：US10991309B2

公开(公告)日：2021-04-27

申请号：US16596881

申请日：2019-10-09

Applicant: Japan Display Inc.

Inventor： Hiroyuki Kimura ,  Seiichiro Jinta

IPC: G09G3/3258

Abstract: A light emitting element display device with a narrow frame and high light emission efficiency is provided even when high definition is achieved. The light emitting element display device includes: a light emitting element which emits light at each of a plurality of subpixels forming one pixel; a drive transistor in which one of a source and a drain is connected to an anode of the light emitting element; and an output control circuit which selectively sets the other of the source and the drain of the drive transistor into one of a state of being connected to a power-supply voltage, a state of being connected to a reset voltage that is a lower voltage than the power-supply voltage, and a high-impedance state of not being connected to any of these voltages.

公开(公告)号：US10283045B2

公开(公告)日：2019-05-07

申请号：US15367426

申请日：2016-12-02

Applicant: Japan Display Inc.

Inventor： Makoto Shibusawa ,  Hiroyuki Kimura ,  Tetsuo Morita

IPC: G09G3/3258 ,  G09G3/3233 ,  G09G3/3266

Abstract: A display device including a light emitting element, a drive transistor connected to the light emitting element, a first switching element connected to the drive transistor and a main power supply line, a second switching element connected to the drive transistor and a reset power supply line, a third switching element connected to the drive transistor and a signal line, a fourth switching element connected to the third switching element and an initialization power supply line, and a capacitor element connected to the drive transistor and the third switching element, wherein two horizontal periods ON signal is supplied to a gate terminal of each of the second switching element, third switching element and fourth switching element respectively.