公开(公告)号：US20240355287A1

公开(公告)日：2024-10-24

申请号：US18683526

申请日：2021-09-30

Applicant: Sharp Display Technology Corporation

Inventor： Kohhei TANAKA ,  Masahito SANO ,  Kaoru YAMAMOTO ,  Ryo YONEBAYASHI ,  Adnan HEGANOVIC

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/06 ,  G09G2320/0247 ,  G09G2330/02

Abstract: When a current-driven display device with an internal compensation method operates in a pause driving mode, a non-light emission period according to a light emission duty is provided in both a refresh frame period and a non-refresh frame period, and an on-bias applying period for applying on-bias to a drive transistor in a pixel circuit is provided in both the non-light emission periods. In the non-light emission period in the refresh frame period, an on-bias applying period is provided in a period from when data writing with threshold compensation is performed to when the light emission period starts. Thus, even when the light emission duty is low, the difference in the stress state of the drive transistor between the refresh frame period and the non-refresh frame period is reduced.

公开(公告)号：US12094407B2

公开(公告)日：2024-09-17

申请号：US17953942

申请日：2022-09-27

Applicant: SEIKO EPSON CORPORATION

Inventor： Yoichi Momose

IPC: G09G3/3233 ,  G09G3/20

CPC classification number: G09G3/3233 ,  G09G3/2007 ,  G09G2300/0842 ,  G09G2310/06 ,  G09G2310/08 ,  G09G2320/0257

Abstract: An electro-optical device includes digital scanning lines, a digital signal line, and pixel circuits. Each circuit is coupled to a digital scanning line included in the digital scanning lines, and the digital signal line. Each pixel circuit includes a light-emitting element and a digital driving circuit that performs digital driving in which, when the pixel circuit is selected by the digital scanning line, display data is written to selected pixel circuit from the digital signal line, and a drive current is supplied to the light-emitting element of selected pixel circuit in an on-period of a length corresponding to a gray scale value of the display data. A field being a period in which one image is formed includes an all-pixels-light-off period in which the pixel circuits turn off the light-emitting elements, and a digital driving period in which the digital driving circuit performs the digital driving after the all-pixels-light-off period.

公开(公告)号：US12057087B2

公开(公告)日：2024-08-06

申请号：US18471603

申请日：2023-09-21

Applicant: LAPIS Technology Co., Ltd.

Inventor： Shunsuke Ozawa

IPC: G09G5/00

CPC classification number: G09G5/003 ,  G09G2310/0237 ,  G09G2310/0243 ,  G09G2310/0291 ,  G09G2310/06

Abstract: A display apparatus includes a plurality of source drivers outputting a gradation voltage signal and a selector switchably supplying the output gradation voltage signal to a plurality of data lines. The plurality of source drivers include a first source driver that has a first output buffer outputting a switching signal and a second source driver that has a second output buffer. The first output buffer has first and second transistors coupled via output terminals of the switching signal and turned ON and OFF complementarily. The second output buffer has third and fourth transistors coupled via output terminals of the switching signal and turned ON and OFF complementarily. The first and the second output buffers have the output terminals electrically coupled, and the first source driver has an abnormal detection circuit detecting a state causing a flow-through current to occur between the output terminals.

公开(公告)号：US20240231526A1

公开(公告)日：2024-07-11

申请号：US18612151

申请日：2024-03-21

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Daisuke KUBOTA ,  Susumu KAWASHIMA ,  Koji KUSUNOKI

IPC: G06F3/041 ,  G06F3/042

CPC classification number: G06F3/0412 ,  G06F3/0421 ,  G06F2203/04106 ,  G09G2300/0814 ,  G09G2310/06 ,  G09G2310/08 ,  G09G2354/00 ,  G09G2360/141

Abstract: A novel functional panel that is highly convenient, useful, or reliable is provided. The functional panel includes a first driver circuit, a second driver circuit, and a pixel set, the first driver circuit has a function of supplying a first selection signal and a second selection signal, a second driver circuit has a function of supplying an image signal and a control signal, and the control signal includes a first level and a second level. The pixel set includes a first pixel, and the first pixel includes a first element and a first pixel circuit. The first pixel circuit has functions of obtaining the image signal on the basis of the first selection signal, obtaining the control signal on the basis of the second selection signal, and holding a first state to a third state. The first element is electrically connected to the first pixel circuit, performs display with first brightness on the basis of the first state, performs display with second brightness on the basis of the second state, and performs display using the image signal on the basis of the third state. The first brightness is darker than the second brightness.

公开(公告)号：US20240161673A1

公开(公告)日：2024-05-16

申请号：US18423236

申请日：2024-01-25

Applicant: Chengdu BOE Optoelectronics Technology Co., Ltd. ,  BOE Technology Group Co., Ltd.

Inventor： Yingsong XU ,  Zhenhua ZHANG ,  Qian MA ,  Xilei CAO ,  Changlong YUAN ,  Jingyi FENG ,  Weiyun HUANG ,  Benlian WANG

IPC: G09G3/20 ,  G11C19/28

CPC classification number: G09G3/20 ,  G11C19/28 ,  G09G2310/0286 ,  G09G2310/06

Abstract: The present disclosure provides a shift register unit, a driving method, a driving circuit and a display device. The shift register unit includes a first node potential adjustment circuit, a first tank circuit, a second node control circuit, a second tank circuit, a third node control circuit, a first node control circuit, and an output circuit; the first node potential adjustment circuit changes the potential of the first node according to the adjustment clock signal under the control of the potential of the first node; the first tank circuit is used to maintain the potential of the first node; the third node control circuit controls the potential of the third isolation node and the potential of the fourth node; the second node control circuit controls the potential of the second isolation node.

公开(公告)号：US20240120707A1

公开(公告)日：2024-04-11

申请号：US17960679

申请日：2022-10-05

Applicant: Microsoft Technology Licensing, LLC

Inventor： Yifei ZHANG ,  Thomas Hamish BARTER

IPC: H01S5/026 ,  F21V8/00 ,  G02B27/01 ,  G02F1/17 ,  G09G3/02 ,  H01S5/00 ,  H01S5/042

CPC classification number: H01S5/0265 ,  G02B6/0031 ,  G02B27/0172 ,  G02F1/17 ,  G09G3/02 ,  H01S5/0085 ,  H01S5/0427 ,  G02B2027/0112 ,  G02B2027/0118 ,  G02B2027/014 ,  G02B2027/0178 ,  G02F2201/06 ,  G02F2203/48 ,  G09G2310/06 ,  G09G2320/02 ,  G09G2320/041 ,  G09G2330/021

Abstract: A display system includes an integrated laser and modulator device and a display assembly. The integrated laser and modulator device includes a laser component configured to facilitate light emission responsive to applied current and a modulator component configured to selectively modulate light responsive to applied signal. The modulator component is integrally coupled to the laser component via a bridging structure that intervenes between the laser component and the modulator component. At least a portion of the bridging structure facilitates power reflectivity into a laser cavity of the laser component. The bridging structure facilitates transmission of light emitted by the laser component into the modulator component for modulation by the modulator component to provide modulated light. The display assembly is configured to direct the modulated light provided by the integrated laser and modulator device to illuminate pixels to form an image.

公开(公告)号：US20240071296A1

公开(公告)日：2024-02-29

申请号：US18383052

申请日：2023-10-24

Applicant: HKC CORPORATION LIMITED

Inventor： Mancheng ZHOU ,  Haoxuan Zheng

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/06 ,  G09G2320/0626

Abstract: A driving method and a driving device of a display panel, and a display device are provided. The driving method includes: receiving a video signal transmitted by an external processor; transmitting a first scanning signal to a current row of pixels in response to a first gray-scale value of each of the current row of pixels of the display panel corresponding to the video signal being greater than a preset gray-scale value; transmitting a second scanning signal to a next row of pixels of the display panel; and transmitting, based on the first gray-scale value, a data signal to the display panel and driving the display panel to display the video signal.

公开(公告)号：US20240054969A1

公开(公告)日：2024-02-15

申请号：US18049469

申请日：2022-10-25

Applicant: Shanghai Tianma Micro-Electronics Co., Ltd.

Inventor： Hua CHEN

IPC: G09G3/36 ,  G09G3/20

CPC classification number: G09G3/3614 ,  G09G3/2096 ,  G09G2310/06 ,  G09G2330/021 ,  G09G2320/0233

Abstract: A method for driving a display module, a display module and a display device are provided. The drive method includes: obtaining a common voltage value when the display module performs displaying in a current polarity inversion manner; and controlling the display module to perform displaying in a pre-stored polarity inversion manner when the common voltage value is out of a common voltage threshold range, the pre-stored polarity inversion manner being different from the current polarity inversion manner. In the drive method, the polarity inversion manner is adjusted such that an image is displayed in another polarity inversion manner.

公开(公告)号：US11900858B2

公开(公告)日：2024-02-13

申请号：US18091066

申请日：2022-12-29

Applicant: LX Semicon Co., Ltd.

Inventor： Jung Min Choi

IPC: G09G3/20 ,  G06F3/041 ,  G06F3/044

CPC classification number: G09G3/2096 ,  G06F3/0412 ,  G06F3/04166 ,  G06F3/044 ,  G09G2310/0289 ,  G09G2310/06 ,  G09G2330/021 ,  G09G2330/028 ,  G09G2354/00

Abstract: The present disclosure relates to a power management circuit including a multiplexer and a power converter, and can provide technology that implements a multiplexer selecting and outputting input power to the power management circuit and a power converter controlling input voltage of a timing controller as one integrated circuit.

公开(公告)号：US11837131B2

公开(公告)日：2023-12-05

申请号：US17081427

申请日：2020-10-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Si Duk Sung ,  Dae Sik Lee ,  Sang Hyun Lee

IPC: G09G3/3208 ,  G09G3/20

CPC classification number: G09G3/20 ,  G09G2300/043 ,  G09G2300/0842 ,  G09G2310/06 ,  G09G2330/022

Abstract: A display device includes a display panel including a plurality of pixels, a scan driver which supplies scan signals and sensing control signals to scan lines and sensing control lines, based on a clock signal, a power manager which applies initialization power to initialization lines, a sensor which senses threshold voltages of driving transistors, a detector which detects an error of the initialization lines and outputs line information indicating an initialization line having the error, a timing controller which changes a sensed threshold voltage using the initialization line having the error and generates image data with reference to a changed threshold voltage, and a data driver which supplies a data signal corresponding to the image data to data lines.