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公开(公告)号：US11996019B2
公开(公告)日：2024-05-28
申请号：US16932454
申请日：2020-07-17
Applicant: Samsung Display Co., Ltd.
Inventor： Jun Gyu Lee , Byung Ki Chun
CPC classification number: G09G3/007 , G09G3/20 , G09G2320/0257 , G09G2320/046 , G09G2340/045 , G09G2340/0464 , G09G2340/0492
Abstract: A display device includes: a plurality of first pixels connected to a first scan line; a plurality of second pixels connected to a second scan line; and a plurality of third pixels connected to a third scan line, wherein, from a position in a first frame period, an image portion displayed by the first pixels, the second pixels, and the third pixels, which are connected to first data lines, is shifted in a first direction, in a second frame period next to the first frame period, wherein an image portion displayed by the first pixels and the second pixels, which are connected to second data lines, is shifted in the first direction, in the second frame period, wherein an image portion displayed by the third pixels connected to the second data lines is shifted in a direction different from the first direction, in the second frame period.
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公开(公告)号：US20240161700A1
公开(公告)日：2024-05-16
申请号：US18417182
申请日：2024-01-19
Applicant: WUHAN TIANMA MICROELECTRONICS CO., LTD. , Wuhan Tianma Microelectronics Co., Ltd. Shanghai Branch
Inventor： Chenguang SUN , Xinyang LI , Zhenqiang LI , Xingyao ZHOU , Yana GAO , Shuai YANG
IPC: G09G3/3258
CPC classification number: G09G3/3258 , G09G2300/0814 , G09G2310/0286 , G09G2310/061 , G09G2310/08 , G09G2320/0247 , G09G2320/0257 , G09G2340/0435 , G09G2360/121
Abstract: A display method is applied to a display apparatus including a display panel, a display driver chip, and a microprocessor. The display method includes outputting, by the display panel, a scanning-done signal of a first frame image generated after scanning rows of pixel circuits of the display panel; after the microprocessor or the display driver chip receives the scanning-done signal, writing, by the display driver chip, initial data of a second frame image provided by the microprocessor and outputting, by the display driver chip, display data of the second frame image to the display panel based on the initial data; or outputting, by the display driver chip, the display data of the second frame image to the display panel in response to the scanning-done signal, the display data being generated based on the initial data provided by the microprocessor. The second frame image follows the first frame image.
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23.发明公开公开(公告)号：US20240144880A1
公开(公告)日：2024-05-02
申请号：US18280153
申请日：2022-07-29
Inventor： Li ZHU , Xilei CAO , Zhenhua ZHANG , Xiaoxin LI , Changlong YUAN
IPC: G09G3/3233
CPC classification number: G09G3/3233 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2310/08 , G09G2320/0247 , G09G2320/0257 , G09G2320/045
Abstract: A pixel driving circuit includes: a data writing circuit, a compensation control circuit, a light emission control circuit, a voltage regulation circuit, a driving transistor, the compensation control circuit is connected with the driving transistor at a first node, the compensation control circuit is connected with the data writing circuit at a second node, the compensation control circuit, the light emission control circuit, the voltage regulation circuit are connected with the driving transistor at a third node; the compensation control circuit obtains a threshold voltage of the driving transistor, writes a third voltage into the second node, and writes a light emission voltage into the first node according to a variation in a voltage at the second node and the threshold voltage; the voltage regulation circuit maintains a voltage at the third node stable during the compensation control circuit writing the light emission voltage into the first node.
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公开(公告)号：US20240144865A1
公开(公告)日：2024-05-02
申请号：US18494873
申请日：2023-10-26
Applicant: Samsung Display Co., Ltd.
Inventor： Pilsuk LEE , Yoomin KO , Sunho KIM , Hyewon KIM , Juchan PARK , Chung Sock CHOI , Sungjin HONG
IPC: G09G3/32
CPC classification number: G09G3/32 , G09G2310/0297 , G09G2320/0257 , G09G2320/043
Abstract: A display panel includes a base layer including a first display region, a second display region adjacent to the first display region, and a non-display region adjacent to the first display region and the second display region, a demultiplexer circuit overlapping the second display region, a first pixel including a first pixel driver overlapping the first display region, and a first light emitting element overlapping the first display region and electrically connected with the first pixel driver, and a second pixel including a second pixel driver overlapping the first display region, and a second light emitting element and a third light emitting element that are electrically connected with the second pixel driver. At least one of the second light emitting element and the third light emitting element overlaps the second display region and is disposed on the demultiplexer circuit.
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25.发明公开公开(公告)号：US20240135880A1
公开(公告)日：2024-04-25
申请号：US18492681
申请日：2023-10-22
Applicant: Samsung Display Co., LTD.
Inventor： Seok Ha HONG , Joon Chul GOH , Dong Joon KWAG , Hyung Jin KIM , Jae Sung BAE
IPC: G09G3/3233 , G09G3/20 , H01L25/16
CPC classification number: G09G3/3233 , G09G3/2007 , H01L25/167 , G09G2300/0819 , G09G2300/0842 , G09G2320/0233 , G09G2320/0257 , G09G2320/0285 , G09G2320/045 , G09G2360/06
Abstract: The display device includes a display panel and a pixel. A compensator configured to calculate a degradation rate of the pixel based on an input gray level of first image data, and compensates the first image data based on the degradation rate to generate second image data. A data driver configured to generate a data signal based on the second image data and configured to supply the data signal to the pixel. The pixel includes a first element group and a second element group connected in series to each other, the first element group includes at least one first light emitting element, and the second element group includes at least one second light emitting element. The compensator is to calculate the degradation rate by applying first information on the number of the first light emitting elements and second information on the number of the second light emitting elements.
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Patent Agency Ranking
公开(公告)号：US11967288B2
公开(公告)日：2024-04-23
申请号：US17281122
申请日：2021-03-17
Inventor： Jinfeng Liu
CPC classification number: G09G3/3406 , G09G3/3685 , G09G2320/0257
Abstract: The present disclosure provides a backlight driving circuit and a liquid crystal display device. The backlight driving circuit of the present disclosure adds a light emitting control module to control a light emitting device to turn on or off, thereby controlling a backlight to turn on or off, realizing a function of black insertion frame by frame of the backlight of the liquid crystal display device, satisfying a BFI function requirement. In addition, it improves product quality. In addition, the liquid crystal display device of the present disclosure lights up the backlight after a deflection of a liquid crystal layer is stabilized and displays normally, and therefore, a problem of trailing when displaying images can be decreased.
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公开(公告)号：US11961457B2
公开(公告)日：2024-04-16
申请号：US18094968
申请日：2023-01-09
Applicant: Samsung Display Co., LTD.
Inventor： Jae Hyun Koh , Sung Hoon Bang , Eui Myeong Cho , Ho Cheol Kang , Seok Young Yoon
IPC: G09G3/32 , G09G3/3233
CPC classification number: G09G3/32 , G09G3/3233 , G09G2300/0819 , G09G2300/0842 , G09G2310/08 , G09G2320/0247 , G09G2320/0257
Abstract: A display device, includes: a display panel including a pixel electrically coupled to a gate line and a data line; a gate driver configured to provide a gate signal to the gate line; and a data driver configured to provide a data signal to the data line, wherein the gate driver is configured to sequentially provide a first gate signal and a second gate signal to the gate line during a first frame period, wherein the data driver is configured to provide a first data signal to the data line in response to the first gate signal, and to provide a second data signal to the data line in response to the second gate signal, and wherein the second data signal is different from the first data signal and varies dependent on the first data signal.
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公开(公告)号：US20240119897A1
公开(公告)日：2024-04-11
申请号：US18273239
申请日：2022-07-05
Inventor： Zhenhua Zhang , Dongfang Yang , Xilei Cao , Xueguang Hao , Lang Liu , Jingyi Feng , Changlong Yuan , Xiaoxin Li , Li Zhu
IPC: G09G3/3233 , G09G3/20
CPC classification number: G09G3/3233 , G09G3/2007 , G09G2300/0819 , G09G2300/0842 , G09G2300/0861 , G09G2310/08 , G09G2320/0247 , G09G2320/0257 , G09G2330/021
Abstract: A pixel circuit and a driving method therefor and a display panel are provided. The pixel circuit includes a driving circuit, a data writing circuit, a storage circuit, and a first reset circuit; the driving circuit includes a control terminal, a first terminal, and a second terminal, and is configured to control a driving current flowing through the first terminal and the second terminal for driving a light-emitting element to emit light; the data write circuit is configured to write a data signal into the control terminal of the driving circuit; the storage circuit is configured to store the data signal; the first reset circuit is configured to apply a first initialization voltage to the control terminal of the driving circuit; the driving circuit and the data write circuit each include an N-type thin film transistor; and the first reset circuit includes an N-type oxide thin film transistor.
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公开(公告)号：US11948493B2
公开(公告)日：2024-04-02
申请号：US18184582
申请日：2023-03-15
Applicant: Samsung Display Co., LTD.
Inventor： Jong Hwan Park , Dae Cheol Kim , Kook Hyun Choi
IPC: G09G3/20
CPC classification number: G09G3/2007 , G09G2320/0257 , G09G2340/16 , G09G2370/08
Abstract: A display device of the present disclosure comprises pixels arranged in a display, a data accumulator for accumulating first image data for an N-th frame output through the display, a data receiver for receiving second image data for an (N+1)th frame to be output through the display, and an afterimage controller for correcting a current value corresponding to a grayscale value of the second image data through a convolution operation between a filter, which is set based on the first image data, and the second image data.
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公开(公告)号：US20240096301A1
公开(公告)日：2024-03-21
申请号：US18516853
申请日：2023-11-21
Applicant: Samsung Display Co., Ltd.
Inventor： Kang Hee LEE , Seung Ho Park , Mi Young Joo
CPC classification number: G09G5/393 , G09G3/007 , G09G2320/0257 , G09G2330/026 , G09G2330/027
Abstract: A display device including a controller and a display panel. The controller receives original image data and output a display image signal. The display panel receives the display image signal and displays a display image corresponding to the display image signal. The controller includes an image shift controller and a memory. The image shift controller generates shifted image data by modulating the original image data to shift the display image sequentially along a preset shift path on the display panel. The memory stores a shift path value indicating a distance by which the display image has been shifted on the preset shift path. The image shift controller generates the display image signal by processing the shifted image data. When the display device is powered on, the image shift controller generates shifted image data corresponding to a shift path value stored in the memory.
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