公开(公告)号：US12118940B2

公开(公告)日：2024-10-15

申请号：US18334930

申请日：2023-06-14

Applicant: JOLED INC.

Inventor： Hiroshi Fujimura ,  Hitoshi Tsuge

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0413 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2320/0247

Abstract: A control method is a method of a display device including a plurality of pixel circuits. Each of the pixel circuits includes a light emitting element, a drive transistor, and a pixel capacitance. The drive transistor includes a gate and a source. A frame period includes a first subframe period and at least one second subframe period. In the first subframe period, the control method includes: (A) applying a first initialization potential to the source; (B) writing a signal into the pixel capacitance; and (C) causing the light emitting element to emit light. In each of the at least one second subframe period, the control method includes: (D) maintaining the light emitting element in a non-emission state; (E) applying a second initialization potential to the source in (D); and (F) causing the light emitting element to emit light.

公开(公告)号：US10482813B2

公开(公告)日：2019-11-19

申请号：US15032133

申请日：2014-07-23

Applicant: JOLED INC.

Inventor： Hitoshi Tsuge

IPC: G09G3/3233 ,  G09G3/325 ,  G09G3/3266 ,  G09G3/3283

Abstract: A power off method of a display device includes: detecting a power off operation on the display device; setting, when the power off operation is detected, a same potential in one electrode and an other electrode of a capacitance element in each of a plurality of pixel circuits; and stopping power supply to a display panel immediately after the same potential is set.

公开(公告)号：US10235935B2

公开(公告)日：2019-03-19

申请号：US15032147

申请日：2014-07-23

Applicant: JOLED INC.

Inventor： Hitoshi Tsuge

IPC: G09G3/3233

Abstract: A power off method of a display device includes: detecting a power off operation on the display device; setting, when the power off operation is detected, a voltage for suppressing electrical stress on a drive transistor, in a capacitance element in each of a plurality of pixel circuits; and stopping power supply to a display panel immediately after the voltage is set.

公开(公告)号：US11164520B2

公开(公告)日：2021-11-02

申请号：US16600149

申请日：2019-10-11

Applicant: JOLED INC.

Inventor： Hitoshi Tsuge

IPC: G09G3/3233 ,  G09G3/325 ,  G09G3/3266 ,  G09G3/3283

Abstract: A light emitting display panel includes a plurality of pixel circuits arranged in a matrix. Each of the plurality of pixel circuits includes a light emitting element, a capacitor that is connected to a gate of a drive transistor and the light emitting element, a first switch transistor that is connected to a first electrode of the capacitor, a first wire that is connected to the first electrode of the capacitor via the first switch transistor, a second switch transistor that is connected to a second electrode of the capacitor and the light emitting element, and a second wire that is connected to the second electrode of the capacitor via the second switch transistor. A voltage of the first wire and a voltage of the second wire are the same during a power off operation or during a non-light emission period.

公开(公告)号：US10923030B2

公开(公告)日：2021-02-16

申请号：US17007741

申请日：2020-08-31

Applicant: JOLED INC.

Inventor： Hiroshi Takahara ,  Hitoshi Tsuge

IPC: G09G3/3241 ,  G09G3/325 ,  G09G3/3266 ,  G09G3/32 ,  H01L27/12 ,  H01L27/32 ,  H01L51/52 ,  G09G3/3233 ,  G09G3/3258 ,  G09G3/3275 ,  G09G5/02 ,  H01L33/56 ,  H01L33/58 ,  G09G3/20 ,  H01L29/786 ,  H01L27/15

Abstract: An EL display apparatus is provided. A display screen includes pixels arranged in a matrix, with each pixel including an EL device and a pixel circuit. A source driver circuit is configured to output an analog video signal to each pixel. A gate driver circuit is on at least one side of the display screen, with the gate driver circuit including first and second gate driver circuits. Each pixel includes a driving transistor, a first switch transistor, and a second switch transistor. A gate terminal of the first switch transistor is connected to a first gate signal line of the first gate driver circuit, and a gate terminal of the second switch transistor is connected to a second gate signal line of the second gate driver circuit. The first and second switch transistors are on/off controlled, independently, by the first and second gate driver circuits.

公开(公告)号：US10818235B2

公开(公告)日：2020-10-27

申请号：US16861676

申请日：2020-04-29

Applicant: JOLED INC.

Inventor： Hiroshi Takahara ,  Hitoshi Tsuge

IPC: G09G3/3241 ,  H01L27/32 ,  G09G3/325 ,  G09G3/3266 ,  G09G3/32 ,  H01L27/12 ,  H01L51/52 ,  G09G3/3233 ,  G09G3/3258 ,  G09G3/20 ,  G09G3/3275 ,  H01L27/15 ,  H01L33/56 ,  H01L33/58 ,  G09G5/02 ,  H01L29/786

Abstract: An EL display apparatus is provided. A display screen includes pixels arranged in a matrix, with each pixel including an EL device and a pixel circuit. A source driver circuit is configured to output an analog video signal to each pixel. A gate driver circuit is on at least one side of the display screen, with the gate driver circuit including first and second gate driver circuits. Each pixel includes a driving transistor, a first switch transistor, and a second switch transistor. A gate terminal of the first switch transistor is connected to a first gate signal line of the first gate driver circuit, and a gate terminal of the second switch transistor is connected to a second gate signal line of the second gate driver circuit. The first and second switch transistors are on/off controlled, independently, by the first and second gate driver circuits.

公开(公告)号：US10553158B2

公开(公告)日：2020-02-04

申请号：US16152999

申请日：2018-10-05

Applicant: JOLED INC.

Inventor： Hiroshi Takahara ,  Hitoshi Tsuge

IPC: G09G3/3241 ,  G09G3/325 ,  G09G3/3266 ,  G09G3/32 ,  G09G3/3233 ,  G09G3/3258 ,  G09G3/3275 ,  G09G5/02 ,  H01L33/56 ,  H01L33/58 ,  H01L27/32 ,  H01L27/12 ,  H01L51/52 ,  G09G3/20 ,  H01L29/786 ,  H01L27/15

Abstract: An electroluminescent (EL) display apparatus and corresponding method of control are provided. A display screen includes gate signal lines which are arranged to intersect source signal lines. A pixel provided with an EL device corresponds to each intersection of the gate signal lines and the source signal lines. A driving transistor is provided for each pixel to supply a current to the EL device. A first switch transistor is provided for each pixel on a current path through which the current is supplied to the EL device. A gate driver circuit is connected to the gate signal lines. The gate driver circuit is configured to turn the first switch transistor on and off to simultaneously generate band-shaped non-display regions and band-shaped display regions on the display screen and to move the band-shaped non-display regions and the band-shaped display regions relative to the display screen.

公开(公告)号：US10347183B2

公开(公告)日：2019-07-09

申请号：US16156660

申请日：2018-10-10

Applicant: JOLED INC.

Inventor： Hiroshi Takahara ,  Hitoshi Tsuge

IPC: G09G3/3241 ,  G09G3/325 ,  G09G3/3266 ,  G09G3/32 ,  G09G3/3233 ,  G09G3/3258 ,  G09G3/3275 ,  H01L33/56 ,  H01L33/58 ,  H01L27/32 ,  H01L27/12 ,  H01L51/52 ,  G09G3/20 ,  G09G5/02 ,  H01L29/786 ,  H01L27/15

Abstract: An electroluminescent (EL) display apparatus and corresponding method of control are provided. A display screen includes gate signal lines which are arranged to intersect source signal lines. A pixel provided with an EL device corresponds to each intersection of the gate signal lines and the source signal lines. A driving transistor is provided for each pixel to supply a current to the EL device. A first switch transistor is provided for each pixel on a current path through which the current is supplied to the EL device. A gate driver circuit is connected to the gate signal lines. The gate driver circuit is configured to turn the first switch transistor on and off to simultaneously generate band-shaped non-display regions and band-shaped display regions on the display screen and to move the band-shaped non-display regions and the band-shaped display regions relative to the display screen.

公开(公告)号：US10319303B2

公开(公告)日：2019-06-11

申请号：US15471067

申请日：2017-03-28

Applicant: JOLED INC.

Inventor： Masafumi Matsui ,  Hitoshi Tsuge ,  Kohei Ebisuno

IPC: G09G5/10 ,  G09G3/3258

Abstract: A plurality of pixel circuits included in a display device each includes: a drive transistor; a capacitor connected to a gate electrode and a source electrode of the drive transistor; a light-emitting element which is driven by the drive transistor; a write transistor having a gate electrode connected to a write control line for transmitting a write signal, one of a drain electrode and a source electrode connected to a data line for transmitting a data voltage corresponding to luminance, and the other of the drain electrode and the source electrode connected to the gate electrode of the drive transistor; and a compensation transistor having a gate electrode connected to the data line, and at least one of a drain electrode and a source electrode connected to the write control line, the compensation transistor being of same conductivity type as the write transistor.

公开(公告)号：US20190108791A1

公开(公告)日：2019-04-11

申请号：US16156660

申请日：2018-10-10

Applicant: JOLED INC.

Inventor： Hiroshi TAKAHARA ,  Hitoshi Tsuge

IPC: G09G3/3241 ,  H01L27/12 ,  G09G3/325 ,  G09G3/3266 ,  H01L27/32 ,  G09G3/32 ,  G09G3/3233 ,  G09G3/3258 ,  H01L51/52 ,  G09G3/3275 ,  G09G3/20

CPC classification number: G09G3/3241 ,  G09G3/2003 ,  G09G3/2007 ,  G09G3/32 ,  G09G3/3233 ,  G09G3/325 ,  G09G3/3258 ,  G09G3/3266 ,  G09G3/3275 ,  G09G5/02 ,  G09G2300/0404 ,  G09G2300/0413 ,  G09G2300/0809 ,  G09G2300/0814 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0205 ,  G09G2310/0218 ,  G09G2310/0248 ,  G09G2310/0251 ,  G09G2310/0256 ,  G09G2310/027 ,  G09G2310/0289 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2320/0257 ,  G09G2320/0261 ,  G09G2320/043 ,  G09G2320/06 ,  G09G2320/0606 ,  G09G2320/0626 ,  G09G2320/0646 ,  G09G2320/0653 ,  H01L27/124 ,  H01L27/1251 ,  H01L27/1255 ,  H01L27/127 ,  H01L27/156 ,  H01L27/3211 ,  H01L27/3216 ,  H01L27/3244 ,  H01L27/3262 ,  H01L27/3265 ,  H01L29/78645 ,  H01L29/78672 ,  H01L33/56 ,  H01L33/58 ,  H01L51/525 ,  H01L51/5253 ,  H01L51/5259 ,  H01L51/5281 ,  H05K999/99

Abstract: An electroluminescent (EL) display apparatus and corresponding method of control are provided. A display screen includes gate signal lines which are arranged to intersect source signal lines. A pixel provided with an EL device corresponds to each intersection of the gate signal lines and the source signal lines. A driving transistor is provided for each pixel to supply a current to the EL device. A first switch transistor is provided for each pixel on a current path through which the current is supplied to the EL device. A gate driver circuit is connected to the gate signal lines. The gate driver circuit is configured to turn the first switch transistor on and off to simultaneously generate band-shaped non-display regions and band-shaped display regions on the display screen and to move the band-shaped non-display regions and the band-shaped display regions relative to the display screen.