公开(公告)号：US10770003B2

公开(公告)日：2020-09-08

申请号：US16233892

申请日：2018-12-27

Applicant: JOLED INC.

Inventor： Tetsuro Yamamoto

IPC: G09G3/3266 ,  G11C19/28 ,  G09G3/3225 ,  G09G3/20 ,  H01L27/12

Abstract: A transfer circuit includes an input circuit, a reset circuit, an output circuit, and an output stabilizer circuit, and obtains an input signal at an input terminal, holds the input signal, and outputs the input signal from an output terminal as an output signal in synchronization with a clock signal. The transfer circuit includes an inverter circuit that has an input terminal connected to at least one of the input and output terminals of the transfer circuit, and outputs, from an output terminal, an inverted signal having an inverted polarity of at least one of the input and output signals. The reset circuit includes a first transistor having a control signal end connected to the output terminal of the inverter circuit, the first transistor switching continuity and discontinuity of a signal path between one end of a first capacitor that holds the input signal and a first power supply.

公开(公告)号：US10727290B2

公开(公告)日：2020-07-28

申请号：US15888398

申请日：2018-02-05

Applicant: JOLED INC.

Inventor： Tetsuro Yamamoto

IPC: H01L27/32 ,  G09G3/3233 ,  G09G3/3241 ,  G09G3/20

Abstract: An active-matrix display device includes pixels arranged in a matrix, and each of the pixels includes subpixels that are arranged along an X direction and emit light of mutually different colors. Each of the subpixels includes a TFT element provided on a TFT substrate and an organic EL element provided on the TFT substrate. The organic EL element has an opening which is a region from which emitted light exits, and the TFT substrate includes a first layer and a second layer. When same-colored subpixels of two of the pixels adjacent in the X direction are seen in a plan view, the first layer has a portion arranged in line symmetry between the same-colored subpixels and the second layer is disposed at an identical position in the openings of the same-colored subpixels.

公开(公告)号：US09230475B2

公开(公告)日：2016-01-05

申请号：US13969117

申请日：2013-08-16

Applicant: JOLED Inc.

Inventor： Tetsuro Yamamoto ,  Katsuhide Uchino

IPC: G09G3/32

CPC classification number: G09G3/3225 ,  G09G3/3233 ,  G09G2300/0417 ,  G09G2300/0842 ,  G09G2300/0866 ,  G09G2310/0251 ,  G09G2320/045

Abstract: There is provided a display device including pixel circuits which are arranged and each of which includes a driving transistor to drive an electro-optical element and a capacitor connected between a gate electrode and one source/drain electrode of the driving transistor. The driving transistor is configured by stacking the gate electrode and the source/drain electrode and a peripheral portion of the gate electrode is covered by the source/drain electrode.

Abstract translation: 提供了一种显示装置，其包括排列的像素电路，每个显示装置包括用于驱动电光元件的驱动晶体管和连接在驱动晶体管的栅电极和一源极/漏电极之间的电容器。 驱动晶体管通过层叠栅电极和源极/漏极配置，并且栅电极的周边部分被源极/漏极覆盖。

公开(公告)号：US20190259329A1

公开(公告)日：2019-08-22

申请号：US16239875

申请日：2019-01-04

Applicant: JOLED Inc.

Inventor： Tetsuro Yamamoto

IPC: G09G3/3233 ,  G09G3/3258

Abstract: A pixel circuit includes a driving transistor, a write transistor, a first switching transistor, a second switching transistor, a first storage capacitor, and a second storage capacitor. The driving transistor controls a current flowing in a light-emitting device. The write transistor controls application of a signal voltage to a gate of the driving transistor. The first switching transistor controls a gate voltage of the driving transistor upon correction operation that allows a gate-source voltage of the driving transistor to come close to a threshold voltage of the driving transistor. The second switching transistor is provided at a path between first and second terminals. The first storage capacitor is provided at a path between the gate of the driving transistor and the first terminal. The second storage capacitor is provided at a path between the gate of the driving transistor and the second terminal.

公开(公告)号：US10325556B2

公开(公告)日：2019-06-18

申请号：US15829478

申请日：2017-12-01

Applicant: JOLED Inc.

Inventor： Tetsuro Yamamoto

IPC: G09G3/3233 ,  G09G3/3225

Abstract: A display panel according to an embodiment of the technology is provided with a plurality of pixels. The pixels each include a light-emitting device and a pixel circuit. Each pixel circuit includes a memory circuit. The memory circuit includes a storage capacitor and a first switching transistor. The storage capacitor is configured to store a signal voltage. The first switching transistor is provided between a gate of a driving transistor and the storage capacitor. The memory circuit further includes a second switching transistor. The second switching transistor is provided between the storage capacitor and the first switching transistor, or provided on side opposite to the first switching transistor with respect to the storage capacitor.

公开(公告)号：US09984627B2

公开(公告)日：2018-05-29

申请号：US15268839

申请日：2016-09-19

Applicant: JOLED Inc.

Inventor： Hiroshi Fujimura ,  Tetsuro Yamamoto

IPC: G06F1/00 ,  G09G3/3258 ,  G09G3/3266

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G3/3266 ,  G09G2300/0426 ,  G09G2300/043 ,  G09G2300/0452 ,  G09G2300/0842 ,  G09G2320/0233 ,  G09G2320/0247

Abstract: A display panel includes a plurality of pixels, and a plurality of signal lines and a plurality of power lines. The plurality of pixels are disposed in matrix. The plurality of signal lines and the plurality of power lines both extend in a column direction. The plurality of power lines include a plurality of first power lines assigned to respective odd-numbered pixel rows and a plurality of second power lines assigned to respective even-numbered pixel rows. The first power lines are electrically coupled to one another. The second power lines are electrically coupled to one another.

公开(公告)号：US09852684B2

公开(公告)日：2017-12-26

申请号：US14539218

申请日：2014-11-12

Applicant: JOLED Inc.

Inventor： Naobumi Toyomura ,  Tetsuro Yamamoto

IPC: G09G3/32 ,  G09G3/3233 ,  G09G3/20

CPC classification number: G09G3/3233 ,  G09G3/20 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0216 ,  G09G2310/0221 ,  G09G2320/045

Abstract: Provided is a drive circuit that includes a scanning circuit configured to perform a first vertical scanning and a second vertical scanning on each of first and second display regions, adjacent to each other in a vertical direction in a display region including pixels, individually in one frame. The first vertical scanning causes light emission of each pixel to be performed, and the second vertical scanning causes light extinction of each pixel to be performed. The scanning circuit is configured to perform the first vertical scanning and the second vertical scanning to cause timing of starting the light emission of an n+1th frame for a first scanned row, adjacent to the first display region, in the second display region to be later than timing of ending the light emission of an n-th frame for a final scanned row, adjacent to the second display region, in the first display region.

公开(公告)号：US09653020B2

公开(公告)日：2017-05-16

申请号：US14149305

申请日：2014-01-07

Applicant: JOLED Inc.

Inventor： Katsuhide Uchino ,  Tetsuro Yamamoto

IPC: G09G3/32 ,  G09G3/3225 ,  G09G3/3233 ,  G09G5/10

CPC classification number: G09G3/3225 ,  G09G3/3233 ,  G09G5/10 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2320/043

Abstract: A display apparatus includes: a pixel array section including a row of first and second scanning lines, a column of signal lines, and pixels in a matrix, each of the pixels disposed at an intersection of both of the lines; and a drive section. The drive section performs line progressive scanning on the pixels. The pixel includes a light emitting device, a sampling transistor, a driving transistor, a switching transistor, and a holding capacitor. The sampling transistor samples a video signal on the signal line to hold the signal potential in the holding capacitor, the driving transistor makes the light emitting device conductive to be in a luminous state in accordance with the held signal potential, and the switching transistor becomes ON in accordance with the control signal supplied in advance of the sampling of the video signal to change the light emitting device to a non-luminous state.

公开(公告)号：US09286833B2

公开(公告)日：2016-03-15

申请号：US14528421

申请日：2014-10-30

Applicant: JOLED Inc.

Inventor： Tetsuro Yamamoto ,  Katsuhide Uchino

IPC: G09G3/32 ,  H03K3/3565 ,  H03K19/0185

CPC classification number: G09G3/3266 ,  G09G3/32 ,  G09G3/3233 ,  G09G2310/0286 ,  G09G2310/0291 ,  H03K3/3565 ,  H03K19/0185

Abstract: A buffer circuit includes a first transistor circuit having a first conductivity type transistor, a second transistor circuit having a second conductivity type transistors, in which the first and second transistor circuits are serially connected between a first fixed power supply and a second fixed power supply, and input terminals and output terminals of each of the first and second transistor circuits are connected in common respectively, in which at least one transistor circuit of the first transistor circuit and the second transistor circuit is a double gate transistor, and in which wherein a switch element, when any one transistor circuit of the first and the second transistor circuits is in an operating state, is included to supply a voltage of a third fixed power supply to a common connection node of the double gate transistor of the other transistor circuit.

Abstract translation: 缓冲电路包括具有第一导电类型晶体管的第一晶体管电路，具有第二导电类型晶体管的第二晶体管电路，其中第一和第二晶体管电路串联连接在第一固定电源和第二固定电源之间， 分别连接第一和第二晶体管电路中的每一个的输入端子和输出端子，其中第一晶体管电路和第二晶体管电路的至少一个晶体管电路是双栅极晶体管，其中开关 元件，当第一和第二晶体管电路的任何一个晶体管电路处于工作状态时，包括第三固定电源的电压给另一个晶体管电路的双栅极晶体管的公共连接节点。

公开(公告)号：US11164521B2

公开(公告)日：2021-11-02

申请号：US17004824

申请日：2020-08-27

Applicant: JOLED INC.

Inventor： Tetsuro Yamamoto

IPC: G09G3/3233 ,  G09G3/20

Abstract: A pixel circuit includes: a driver transistor that supplies a current dependent on a voltage supplied via a signal line; a write transistor connected between the signal line and a gate electrode of the driver transistor; a first organic EL element connected to one electrode of the driver transistor, the one electrode being one of a drain electrode and a source electrode of the driver transistor; a switching transistor connected to the one electrode of the driver transistor; and a second organic EL element connected to the one electrode of the driver transistor via the switching transistor. The pixel circuit performs mobility correction that corrects a mobility of the driver transistor. The switching transistor turns ON after a write operation that writes the voltage supplied via the signal line and turns OFF before an operation that performs the mobility correction of the driver transistor begins.