公开(公告)号：US20200258451A1

公开(公告)日：2020-08-13

申请号：US16861676

申请日：2020-04-29

Applicant: JOLED INC.

Inventor： Hiroshi TAKAHARA ,  Hitoshi TSUGE

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

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：US20200135103A1

公开(公告)日：2020-04-30

申请号：US16714206

申请日：2019-12-13

Applicant: JOLED INC.

Inventor： Hiroshi TAKAHARA ,  Hitoshi TSUGE

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

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：US20180166013A1

公开(公告)日：2018-06-14

申请号：US15879198

申请日：2018-01-24

Applicant: JOLED INC.

Inventor： Hiroshi TAKAHARA ,  Hitoshi TSUGE

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

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 method of control are provided. A display screen includes gate signal lines which intersect source signal lines. A pixel provided with an EL device corresponds to each intersection of the gate and 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 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 includes a shift register circuit, and outputs a select or non-select signal for the gate signal lines. The gate driver circuit turns the first switch transistor on and off to control a duty ratio of the display screen. The duty ratio is controlled by a start pulse fed to the shift register circuit.

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.

公开(公告)号：US20180277038A1

公开(公告)日：2018-09-27

申请号：US15992477

申请日：2018-05-30

Applicant: JOLED INC.

Inventor： Hiroshi TAKAHARA ,  Hitoshi TSUGE

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

Abstract: An electroluminescent (EL) display apparatus and method of controlling are provided. A display screen includes gate and source signal lines. A pixel corresponds to each intersection of the gate and source signal lines. Each pixel includes: an EL device including anode and cathode terminals, the cathode terminal being connected to a common reference voltage; a driving transistor to flow a current to the EL device; a first switch transistor provided on a current path through which the current flows from a power line through the driving transistor to the EL device; a second switch transistor to supply, to the driving transistor, an image signal from one source signal line; and a third switch transistor provided between the anode terminal of the EL device and a voltage line. The voltage line is configured to supply a reverse bias voltage for reverse biasing the anode terminal of the EL device.

公开(公告)号：US20180005582A1

公开(公告)日：2018-01-04

申请号：US15685414

申请日：2017-08-24

Applicant: JOLED INC.

Inventor： Hiroshi TAKAHARA

IPC: G09G3/3258 ,  G09G3/3291 ,  G09G3/3225 ,  G09G3/3266

CPC classification number: G09G3/3258 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2300/0408 ,  G09G2300/0426 ,  G09G2300/08 ,  G09G2300/0809 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2310/0286 ,  G09G2320/0223 ,  G09G2320/064 ,  G09G2330/08

Abstract: An EL display includes a flexible board including: a plurality of connection terminals arranged at one side for connection with panel lines formed on a panel board; terminal connection lines for connecting points inside the flexible board with the connection terminals; serial connection lines for connecting between two or more of the connection terminals. On the flexible board: driver output terminals of each of gate driver ICs are connected to terminal connection lines; driver input terminals of the gate driver IC are connected to either terminal connection lines or the serial connection lines; and control terminals for performing logic setting of the gate driver IC are each arranged between connection terminals and driver input terminals to which the serial connection lines are connected. As a result, the number of control lines to be formed on the flexible board in serial connection is reduced.

公开(公告)号：US20170069267A1

公开(公告)日：2017-03-09

申请号：US15335919

申请日：2016-10-27

Applicant: JOLED INC.

Inventor： Hiroshi TAKAHARA ,  Hitoshi TSUGE

IPC: G09G3/3241 ,  H01L27/32 ,  G09G3/3275 ,  G09G3/20 ,  G09G3/3258 ,  G09G3/3266

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

Abstract: An electroluminescent (EL) display apparatus and manufacturing method are provided. A display screen includes gate signal lines which are arranged to intersect source signal lines. A pixel corresponds to each intersection of the gate signal lines and the source signal lines. Each pixel includes: an EL device; a driving transistor to supply a current to the EL device; a first switch transistor through which the current is supplied by the driving transistor to the EL device; a second switch transistor provided to supply, to the driving transistor, an image signal supplied to a corresponding one of the source signal lines; a third switch transistor provided between a gate terminal and a drain terminal of the driving transistor; and a capacitor connected to the gate terminal of the driving transistor for holding the image signal. The third switch transistor has a multi-gate structure.

Abstract translation: 提供一种电致发光（EL）显示装置及其制造方法。 显示屏幕包括被布置为与源极信号线相交的栅极信号线。 像素对应于栅极信号线和源极信号线的交点。 每个像素包括：EL器件; 驱动晶体管，以向EL器件提供电流; 第一开关晶体管，电流由驱动晶体管提供给EL器件; 第二开关晶体管，被设置为向驱动晶体管提供提供给对应的一个源极信号线的图像信号; 设置在驱动晶体管的栅极端子和漏极端子之间的第三开关晶体管; 以及连接到用于保持图像信号的驱动晶体管的栅极端子的电容器。 第三开关晶体管具有多栅结构。

公开(公告)号：US20170061886A1

公开(公告)日：2017-03-02

申请号：US15335932

申请日：2016-10-27

Applicant: JOLED INC.

Inventor： Hiroshi TAKAHARA ,  Hitoshi TSUGE

IPC: G09G3/3258 ,  G09G3/3233

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

Abstract: An electroluminescent (EL) display apparatus and corresponding method of control are provided. A display screen includes pixels arranged in a matrix. A pixel circuit of each of the pixels includes, in part: a second switch transistor to supply, to a driving transistor, an image signal; and a third switch transistor for initially resetting the pixel circuit before the second switch transistor supplies the image signal. A gate terminal of the second switch transistor and a gate terminal of the third switch transistor are connected to a second gate driver circuit. The second gate driver circuit includes a first gate driver circuit and a second gate driver circuit. The second gate driver circuit includes a second gate signal line connected to both the gate terminal of the second switch transistor of a Nth row and the gate terminal of the third switch transistor of a (N+1)th row.

Abstract translation: 提供一种电致发光（EL）显示装置和相应的控制方法。 显示屏包括以矩阵排列的像素。 每个像素的像素电路部分包括：向驱动晶体管提供图像信号的第二开关晶体管; 以及第三开关晶体管，用于在第二开关晶体管提供图像信号之前初始复位像素电路。 第二开关晶体管的栅极端子和第三开关晶体管的栅极端子连接到第二栅极驱动器电路。 第二栅极驱动器电路包括第一栅极驱动电路和第二栅极驱动器电路。 第二栅极驱动器电路包括连接到第N行的第二开关晶体管的栅极端子和第（N + 1）行的第三开关晶体管的栅极端子的第二栅极信号线。

公开(公告)号：US20180144686A1

公开(公告)日：2018-05-24

申请号：US15858692

申请日：2017-12-29

Applicant: JOLED INC.

Inventor： Hiroshi TAKAHARA ,  Hitoshi TSUGE

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

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 method of controlling are provided. A display screen includes gate signal lines and source signal lines. A pixel corresponds to each intersection of the gate and source signal lines. Each pixel includes: an EL device including an anode and cathode terminals; a driving transistor to flow a current to the EL device; a first switch transistor provided on a current path through which the current flows from a power line through the driving transistor to the EL device; a second switch transistor to supply, to the driving transistor, an image signal from one of the source signal lines; and a third switch transistor provided between the anode terminal of the EL device and a voltage line. The voltage line is configured to supply a reverse bias voltage for reverse biasing the anode terminal of the EL device.

公开(公告)号：US20170221412A1

公开(公告)日：2017-08-03

申请号：US15492033

申请日：2017-04-20

Applicant: JOLED INC.

Inventor： Hiroshi TAKAHARA ,  Hitoshi TSUGE

IPC: G09G3/325 ,  H01L27/12 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/20 ,  G09G3/3233

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

Abstract: An EL display apparatus according to the present invention includes an EL device adapted to emit light at a luminance corresponding to a current fed thereto. A source driver outputs a current higher than a current corresponding to an analog video signal to the EL device through a source signal line. This operation charges/discharges a parasitic capacitance present in the source signal line. A second gate driver circuit controls a transistor formed between the EL device and the source driver to operate so that the EL device is fed with the current for only a part of a one-frame period. As a result, the El device emits light for only the part of the period.