公开(公告)号：US20170223307A1

公开(公告)日：2017-08-03

申请号：US15514949

申请日：2015-09-08

Applicant: JOLED INC.

Inventor： Shinya ONO

IPC: H04N7/01 ,  H04N5/06

CPC classification number: H04N7/01 ,  G09G3/3233 ,  G09G3/3258 ,  G09G3/3266 ,  G09G5/005 ,  G09G2310/0216 ,  G09G2310/062 ,  G09G2320/0233 ,  G09G2320/045 ,  G09G2330/12 ,  G09G2360/12 ,  H04N5/06

Abstract: A video display device includes a video obtaining unit that obtains a video represented in an input video format for displaying, at a predetermined frame frequency, frames each including an effective pixel region having n rows and m columns, p1 columns of a horizontal blanking period, and q1 rows of a vertical blanking period; a video format conversion unit that converts a format of the video to an output video format for displaying, at the predetermined frame frequency, frames each including the effective pixel region having n rows and m columns, p2 columns of the horizontal blanking period, and q2 rows of the vertical blanking period, where q2 is less than q1; and a display driver unit that displays the video row by row in a display unit at a horizontal scanning frequency in the output video format.

公开(公告)号：US20170186369A1

公开(公告)日：2017-06-29

申请号：US15304944

申请日：2014-12-22

Applicant: JOLED INC.

Inventor： Hiroshi HAYASHI ,  Shinya ONO

IPC: G09G3/3233

Abstract: A display device includes: a display unit in which light-emitting pixels are disposed in rows and columns; and a control circuit controlling the display unit. The light-emitting pixels each include: a light-emitting element (organic EL element); and a drive transistor which supplies the light-emitting element with a current causing the light-emitting element to emit light, and the control circuit, when display by the display unit is stopped, calculates an amount of shift of a threshold voltage of the drive transistor at a time when a stopped state of the display unit is started, and determines on the basis of the amount of shift, at least one of (i) a recovery voltage which reduces the amount of shift by being applied across a gate and source of the drive transistor while the display by the display unit is stopped, and (ii) an application period during which the recovery voltage is applied.

公开(公告)号：US20160329390A1

公开(公告)日：2016-11-10

申请号：US15110217

申请日：2014-12-22

Applicant: JOLED INC.

Inventor： Shinya ONO

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

CPC classification number: H01L27/3262 ,  H01L27/1225 ,  H01L27/124 ,  H01L27/3272 ,  H01L27/3276 ,  H01L29/41733

Abstract: A display device includes a pixel circuit that includes a thin-film transistor. The thin-film transistor includes a gate electrode, a semiconductor layer formed above the gate electrode, a gate insulating layer formed between the gate electrode and the semiconductor layer, a channel protective layer formed on the semiconductor layer, and a source electrode and a drain electrode that are formed above the channel protective layer and electrically connected to the semiconductor layer. The source electrode and the drain electrode are formed in different layers.

Abstract translation: 显示装置包括具有薄膜晶体管的像素电路。 薄膜晶体管包括栅电极，形成在栅电极上的半导体层，形成在栅电极和半导体层之间的栅极绝缘层，形成在半导体层上的沟道保护层，以及源电极和漏极 电极，其形成在沟道保护层上方并电连接到半导体层。 源电极和漏电极形成为不同的层。

公开(公告)号：US20160055790A1

公开(公告)日：2016-02-25

申请号：US14779767

申请日：2014-07-04

Applicant: JOLED INC.

Inventor： Shinya ONO

IPC: G09G3/30

CPC classification number: G09G3/30 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2330/021 ,  G09G2330/028 ,  H02M3/07 ,  H02M3/158 ,  H02M2001/0048 ,  Y02B70/1491

Abstract: Display panel includes: a power supply unit that generates first power supply voltage and variable second power supply voltage; and first and second power supply lines that transmit the first and second power supply voltages, respectively, to light emitting elements. The power supply unit (i) includes: first and second input terminals; a switching control unit; an inductor having first terminal connected to the second power supply line; a first switch element that switches conduction/non-conduction between a second terminal of the inductor and the first input terminal; a second switch element that switches conduction/non-conduction between the second terminal and the second input terminal; a capacitor having first electrode to which constant voltage is applied; and a third switch element that switches conduction/non-conduction between the second terminal and a second electrode of the capacitor, and (ii) collects, into the capacitor, and regenerates power from parasitic capacitance of the second power supply line.

Abstract translation: 显示面板包括：电源单元，其产生第一电源电压和可变的第二电源电压; 以及将第一和第二电源电压分别发送到发光元件的第一和第二电源线。 电源单元（i）包括：第一和第二输入端子; 开关控制单元; 电感器，其具有连接到所述第二电源线的第一端子; 第一开关元件，其切换所述电感器的第二端子与所述第一输入端子之间的导通/非导通; 第二开关元件，其切换所述第二端子和所述第二输入端子之间的导通/不导通; 电容器，其具有施加恒定电压的第一电极; 以及第三开关元件，其切换所述第二端子和所述电容器的第二电极之间的导通/不导通，以及（ii）将所述第二开关元件收集到所述电容器中，并且从所述第二电源线的寄生电容再生功率。

公开(公告)号：US20200279529A1

公开(公告)日：2020-09-03

申请号：US16877040

申请日：2020-05-18

Applicant: JOLED INC.

Inventor： Hiroshi HAYASHI ,  Shinya ONO

IPC: G09G3/3233

Abstract: A method for driving a display device includes stopping a display operation of a display based on a presence or absence of a signal indicating an off operation of a main power switch of the display. The method further includes applying a recovery voltage across a gate and source of a driving transistor in the display based on a threshold voltage shift of the driving transistor. The threshold voltage shift is determined during a stopped state of the display operation of the display. The stopped state of the display operation of the display occurs prior to starting the display operation of the display.

公开(公告)号：US20170352312A1

公开(公告)日：2017-12-07

申请号：US15535919

申请日：2015-12-09

Applicant: JOLED INC.

Inventor： Kohei EBISUNO ,  Shinya ONO ,  Hitoshi TSUGE ,  Ichiro SATO

IPC: G09G3/3233 ,  H01L27/32 ,  G09G3/20 ,  H01L51/52 ,  H01L51/50

CPC classification number: G09G3/3233 ,  G09G3/2074 ,  G09G2300/0452 ,  G09G2300/0842 ,  G09G2320/0233 ,  H01L27/1214 ,  H01L27/3211 ,  H01L27/322 ,  H01L27/3262 ,  H01L27/3276 ,  H01L29/78696 ,  H01L51/5012 ,  H01L51/5275

Abstract: An organic EL display includes: a sub-pixel and a sub-pixel arranged adjacent to each other and each including a driving transistor; and a power supply line for supplying a power supply voltage to the driving transistor of the sub-pixel and the driving transistor of the sub-pixel, the power supply line being disposed at a boundary between the sub-pixel and the sub-pixel. The driving transistor of the sub-pixel and the driving transistor of the sub-pixel are oriented in a same direction.

公开(公告)号：US20170270856A1

公开(公告)日：2017-09-21

申请号：US15504987

申请日：2015-07-31

Applicant: JOLED INC.

Inventor： Kohei EBISUNO ,  Shinya ONO ,  Masafumi MATSUI

IPC: G09G3/3233 ,  H01L27/32

CPC classification number: G09G3/3233 ,  G09G2300/0842 ,  G09G2300/0866 ,  G09G2310/0251 ,  G09G2310/0254 ,  G09G2310/08 ,  G09G2320/0271 ,  G09G2320/043 ,  G09G2320/045 ,  G09G2320/0626 ,  H01L27/3262 ,  H01L27/3265 ,  H01L27/3276

Abstract: A method for driving a display device including a plurality of pixels arranged in rows and columns, each of the pixels including an organic EL device that emits light in accordance with supplied current, a driving transistor that supplies current to the organic EL device, and a storage capacitor connected between the gate of driving transistor and a source or drain thereof, includes causing the organic EL device to emit light by supplying current to the organic EL device; resetting charge of at least one of the storage capacitor and a parasitic capacitance of the organic EL device; and applying a reverse bias voltage between the gate and source of the driving transistor. The resetting is performed between the light emission and the reverse-bias application.

公开(公告)号：US20160203758A1

公开(公告)日：2016-07-14

申请号：US14914121

申请日：2014-08-26

Applicant: JOLED INC.

Inventor： Hitoshi TSUGE ,  Kouhei EBISUNO ,  Shinya ONO

IPC: G09G3/32

CPC classification number: G09G3/325 ,  G09G3/3258 ,  G09G3/3291 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0251 ,  G09G2310/0289 ,  G09G2320/045 ,  G09G2320/0626 ,  G09G2330/021

Abstract: By a drive method, for each of a plurality of display pixels each including an EL element, a capacitor, a drive transistor, an enable switch, and a switch, a period T21 is started by switching only the enable switch to an electrically conductive state before a period T22 in which the drive transistor is initialized, and the period T22 following the period T21 is started by switching the switch to an electrically conductive state. The period T21 is longer than a period T24 in which a threshold voltage of the drive transistor is compensated.

Abstract translation: 通过驱动方法，对于包括EL元件，电容器，驱动晶体管，使能开关和开关的多个显示像素中的每一个，通过仅将使能开关切换到导电状态来开始周期T21 在驱动晶体管初始化的周期T22之前，并且通过将开关切换到导电状态来开始周期T21之后的周期T22。 周期T21长于补偿驱动晶体管的阈值电压的周期T24。

公开(公告)号：US20160155762A1

公开(公告)日：2016-06-02

申请号：US14948857

申请日：2015-11-23

Applicant: JOLED INC.

Inventor： Eiichi SATO ,  Shinya ONO

IPC: H01L27/12

CPC classification number: H01L27/1255 ,  H01L29/42384

Abstract: A thin film transistor substrate including a thin film transistor and a capacitor formed of a pair of electrodes, which includes: a first electrode above a substrate; a first insulating film above the first electrode; a second electrode above the first insulating film; a second insulating film above the second electrode; and a semiconductor layer above the second insulating film, in which the capacitor includes the first electrode as one of the pair of electrodes and the second electrode as the other of the pair of electrodes, and the thin film transistor includes the second electrode as a gate electrode, the second insulating film as a gate insulating film, and the semiconductor layer as a channel layer.

Abstract translation: 一种薄膜晶体管基板，包括薄膜晶体管和由一对电极形成的电容器，其包括：在基板上方的第一电极; 在所述第一电极上方的第一绝缘膜; 在第一绝缘膜上方的第二电极; 在所述第二电极上方的第二绝缘膜; 以及在第二绝缘膜上方的半导体层，其中电容器包括作为一对电极之一的第一电极和作为该对电极中的另一个的第二电极，并且薄膜晶体管包括作为栅极的第二电极 电极，作为栅极绝缘膜的第二绝缘膜，以及作为沟道层的半导体层。

公开(公告)号：US20170162114A1

公开(公告)日：2017-06-08

申请号：US15321363

申请日：2015-06-24

Applicant: JOLED INC.

Inventor： Shinya ONO

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0814 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2300/0866 ,  G09G2310/0245 ,  G09G2310/0262 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2330/028 ,  H01L27/3276

Abstract: An organic EL display device includes: a plurality of pixels each of which includes an organic EL element that emits light according to a supplied pixel current Ipix, a drive transistor that supplies the pixel current Ipix to the organic EL element, and a holding capacitor connected between a gate and a source of the drive transistor; and a control unit that, in a display state of causing the organic EL element to emit light in a part of the plurality of pixels and changing a voltage of the holding capacitor to a threshold voltage of the drive transistor in another part of the plurality of pixels, applies a drain voltage of the drive transistor of a pixel in the other part independently of the drain voltage of the drive transistor of a pixel in the part.