公开(公告)号：US10056028B2

公开(公告)日：2018-08-21

申请号：US15348846

申请日：2016-11-10

Applicant: JOLED Inc.

Inventor： Tetsuro Yamamoto

IPC: G09G3/30

CPC classification number: G09G3/30 ,  G09G3/3233 ,  G09G2300/0866 ,  G09G2310/0224 ,  G09G2310/04 ,  G09G2320/043 ,  G09G2330/021

Abstract: A display unit includes a plurality of pixels and a drive circuit. The plurality of pixels each includes a light emitting device, a transistor, and a capacitor. The drive circuit writes an image signal into each of the pixels and thereby performs display drive. The pixels as a whole are dividable into a plurality of pixel groups. The drive circuit performs intermittent stopping of the display drive for the respective pixel groups independently of each other in a still image display period based on the image signal.

公开(公告)号：US20170140693A1

公开(公告)日：2017-05-18

申请号：US15348863

申请日：2016-11-10

Applicant: JOLED Inc.

Inventor： Tetsuro Yamamoto

IPC: G09G3/20 ,  G09G3/3233 ,  H01L27/32 ,  G09G3/3266

CPC classification number: G09G3/2074 ,  G09G3/2092 ,  G09G3/3233 ,  G09G3/3266 ,  G09G2300/0426 ,  G09G2300/0465 ,  G09G2300/0809 ,  G09G2310/08 ,  H01L27/3211 ,  H01L27/3213 ,  H01L27/3218 ,  H01L27/3272 ,  H01L27/3276

Abstract: A display panel includes a plurality of pixels and a plurality of power lines. The plurality of pixels are disposed in a matrix and include respective light-emitting devices and respective pixel circuits. The pixel circuits are disposed at unequal intervals in a column direction. The light-emitting devices are provided to allow light-emitting regions of the respective light-emitting devices to have an equal interval in the column direction. The plurality of power lines are extended in a row direction and each supply a current flowing into the light-emitting device. Each one of the plurality of power lines is disposed for a plurality of pixel rows. A spacing between the pixel circuits in the column direction is relatively large at a portion facing one of the power lines. A spacing between the pixel circuits in the column direction is relatively small at a portion facing wiring other than the power lines.

公开(公告)号：US20170092197A1

公开(公告)日：2017-03-30

申请号：US15268839

申请日：2016-09-19

Applicant: JOLED Inc.

Inventor： Hiroshi Fujimura ,  Tetsuro Yamamoto

IPC: 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：US11043181B2

公开(公告)日：2021-06-22

申请号：US16268421

申请日：2019-02-05

Applicant: JOLED INC.

Inventor： Jiro Yamada ,  Tetsuro Yamamoto

IPC: G09G3/38 ,  G09G3/34

Abstract: A display unit includes a display panel that includes a plurality of pixels arranged in a matrix. Each of the pixels includes one of an optical modulator and a self-luminescent element, and one of an electrochromic element, an electrophoretic element, and an electrowetting element. Each of the pixels further includes a pixel circuit that is configured to selectively drive the one of the optical modulator and the self-luminescent element, and selectively drive the one of the electrochromic element, the electrophoretic element, and the electrowetting element.

公开(公告)号：US10818242B2

公开(公告)日：2020-10-27

申请号：US16239819

申请日：2019-01-04

Applicant: JOLED Inc.

Inventor： Tetsuro Yamamoto

IPC: G09G3/3266 ,  H01L27/32

Abstract: A pixel circuit includes a driving transistor, a write transistor, a first switching transistor, a first storage capacitor, a second and third switching transistors, 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 source end of the driving transistor. The first switching transistor controls a gate voltage of the driving transistor during 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 and third switching transistors are provided, in series, at an electrically conductive path between the source end of the driving transistor and a first voltage line.

公开(公告)号：US10783822B2

公开(公告)日：2020-09-22

申请号：US16233956

申请日：2018-12-27

Applicant: JOLED INC.

Inventor： Tetsuro Yamamoto

IPC: G09G3/32 ,  G09G3/36 ,  G11C19/28 ,  G09G3/3266

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 output stabilizer circuit includes an inverter circuit and a transistor. The inverter circuit outputs from an output terminal an inverted signal having an inverted polarity of at least one of the input signal and the output signal. The transistor has a control signal end connected to the output terminal of the inverter circuit, a first main signal end connected to a power supply line of the output stabilizer circuit, and a second main signal end connected to the output terminal of the transfer circuit.

公开(公告)号：US10176751B2

公开(公告)日：2019-01-08

申请号：US15863290

申请日：2018-01-05

Applicant: JOLED INC.

Inventor： Tetsuro Yamamoto ,  Hiroshi Fujimura

IPC: G09G3/3208

Abstract: A drive circuit having an output terminal includes a buffer circuit including a first transistor and a second transistor that are connected in parallel between a power supply and the output terminal. The first transistor and the second transistor are controlled such that after the first transistor and the second transistor are simultaneously turned on, the second transistor is turned off earlier than the first transistor.

公开(公告)号：US20180182290A1

公开(公告)日：2018-06-28

申请号：US15829478

申请日：2017-12-01

Applicant: JOLED Inc.

Inventor： Tetsuro Yamamoto

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G3/3225 ,  G09G2300/0809 ,  G09G2300/0814 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2310/0245 ,  G09G2310/0251 ,  G09G2320/045 ,  G09G2320/0626

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：US20170140700A1

公开(公告)日：2017-05-18

申请号：US15348846

申请日：2016-11-10

Applicant: JOLED Inc.

Inventor： Tetsuro Yamamoto

IPC: G09G3/30

CPC classification number: G09G3/30 ,  G09G3/3233 ,  G09G2300/0866 ,  G09G2310/0224 ,  G09G2310/04 ,  G09G2320/043 ,  G09G2330/021

Abstract: A display unit includes a plurality of pixels and a drive circuit. The plurality of pixels each includes a light emitting device, a transistor, and a capacitor. The drive circuit writes an image signal into each of the pixels and thereby performs display drive. The pixels as a whole are dividable into a plurality of pixel groups. The drive circuit performs intermittent stopping of the display drive for the respective pixel groups independently of each other in a still image display period based on the image signal.

公开(公告)号：US11631372B2

公开(公告)日：2023-04-18

申请号：US17495251

申请日：2021-10-06

Applicant: JOLED INC.

Inventor： Tetsuro Yamamoto ,  Kenji Kokuda ,  Hitoshi Tsuge ,  Teppei Tanaka

IPC: G09G3/3233

Abstract: A pixel circuit driving method is a method for driving a pixel circuit that includes a drive transistor that supplies a current corresponding to a signal voltage supplied via a signal line, a write transistor connected between the signal line and a gate electrode of the drive transistor, and an organic EL element that emits light in accordance with the current. The pixel circuit driving method includes supplying a reference potential to the gate electrode of the drive transistor before a threshold correction preparation operation of making a gate-source voltage of the drive transistor higher than a threshold voltage of the drive transistor.