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公开(公告)号：US12080242B2
公开(公告)日：2024-09-03
申请号：US17749070
申请日：2022-05-19
Applicant: Samsung Display Co., LTD.
Inventor： Jun Ki Jeong
IPC: G09G3/3266 , G09G3/3225 , G09G3/3241 , G09G5/00 , G09G5/18 , G11C19/28
CPC classification number: G09G3/3266 , G09G3/3225 , G09G3/3241 , G09G5/008 , G09G5/18 , G09G2230/00 , G09G2300/0426 , G09G2300/08 , G09G2300/0842 , G09G2310/0202 , G09G2310/0216 , G09G2310/08 , G09G2320/0223 , G09G2320/0686 , G09G2330/021 , G09G2340/0435 , G09G2340/0442 , G11C19/28
Abstract: A display device includes a pixel unit including first pixels disposed in a first area and second pixels disposed in a second area, an emission driver configured to sequentially supply emission signals of a turn-off level to the first pixels and the second pixels based on a first start signal, a first clock signal, and a second clock signal, and a first scan driver configured to sequentially supply first scan signals of a turn-on level to the first pixels based on a second start signal, the first clock signal, and the second clock signal, and sequentially supply the first scan signals of the turn-on level to the second pixels based on a third start signal, the first clock signal, and the second clock signal.
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公开(公告)号：US12020653B2
公开(公告)日：2024-06-25
申请号：US17623762
申请日：2021-12-27
Inventor： Xiong Hu , Yu Wu , Xiaolong Chen , Tao He
IPC: G09G3/34 , G02F1/13357 , G09G3/36 , G09G5/18
CPC classification number: G09G3/3406 , G02F1/133602 , G09G3/342 , G09G3/36 , G09G5/18 , G09G2310/08 , G09G2320/0626 , G09G2320/0646 , G09G2340/0435
Abstract: A display panel and a driving method thereof are provided. The driving method includes: acquiring a display synchronization signal, and according to it to determine a first backlight synchronization signal including a plurality of second pulses corresponding to a plurality of first pulses in the display synchronization signal; acquiring a display setting frequency greater than a minimum value of refresh rates of frame images, and according to it to determine a unit backlight clock signal, where a duration of the unit backlight clock signal is equal to of a reciprocal of the display setting frequency; and generating a third pulse between some two adjacent second pulses to drive a backlight plate to emit light.
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公开(公告)号：US20240177690A1
公开(公告)日：2024-05-30
申请号：US18302272
申请日：2023-04-18
Applicant: NXP USA, Inc.
Inventor： Michael Andreas Staudenmaier , Iani Bogdan Almajan , Vincent Aubineau
IPC: G09G5/18
CPC classification number: G09G5/18 , G09G2330/12 , G09G2370/00
Abstract: A method for controlling a functional safety display controller including defining in a display controller, a visible display area of a display device, wherein the display device is configured to raster scan a series of pixel intensity data, the raster scan including at least one synchronization phase. A test area of the display device is defined to be mutually exclusive of the visible display area. A test data is rendered in the test area to generate a rendered test data during the at least one synchronization phase of the raster scan. A checksum of the rendered test data is generated. The checksum is compared with a previously generated checksum to verify a functionality of the display controller.
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公开(公告)号：US11935502B2
公开(公告)日：2024-03-19
申请号：US17758286
申请日：2020-12-30
Applicant: QUALCOMM Incorporated
Inventor： Nan Zhang , Long Han , Yongjun Xu
Abstract: Aspects of the present disclosure can receive a hardware Vsync signal from a display, generate a hardware timestamp signal based on the hardware Vsync signal, determine an error for a pulse in the hardware timestamp signal, determine whether the error for the pulse is over a threshold, synchronize a software Vsync signal based on the hardware timestamp signal, wherein the pulse of the hardware timestamp signal is ignored in synchronization based on whether the error is above the threshold, and control rendering and transmission of a frame to the display based on the synchronized software Vsync signal.
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公开(公告)号：US11869458B2
公开(公告)日：2024-01-09
申请号：US17688019
申请日：2022-03-07
Applicant: Samsung Display Co., Ltd.
Inventor： Myeong-Su Kim , Su-Hyeong Park , Ho-Yong Jung , Jae-Ho Choi
CPC classification number: G09G5/18 , G06T1/20 , G09G3/2096 , G09G5/10 , G09G2320/0247 , G09G2320/103 , G09G2330/021 , G09G2340/0435 , G09G2360/16 , G09G2370/08
Abstract: A display device includes a display panel including a plurality of pixels, a scan driving unit configured to provide a scan signal to the pixels, a data driving unit configured to provide a data signal to the pixels, and a controller configured to provide driving frequency information to a processor, which transfers image data with a driving frequency determined based on the driving frequency information to the display device, to receive the image data with the driving frequency from the processor, and to control the scan driving unit and the data driving unit to drive the display panel with the driving frequency.
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Patent Agency Ranking
公开(公告)号：US20230334796A1
公开(公告)日：2023-10-19
申请号：US18207663
申请日：2023-06-08
Applicant: ULTRAHAPTICS IP TWO LIMITED
Inventor： David S. HOLZ
CPC classification number: G06T19/006 , G02B27/0172 , G06F3/017 , G09G5/18 , G02B27/017 , G06F3/011 , G06F3/147 , G02B2027/0178 , G02B2027/0187 , G02B2027/0138 , G02B2027/014 , G09G2340/0464 , G09G2340/125 , G09G2360/144 , G09G2354/00
Abstract: The technology disclosed can provide capabilities to view and/or interact with the real world to the user of a wearable (or portable) device using a sensor configured to capture motion and/or determining the path of an object based on imaging, acoustic or vibrational waves. Implementations can enable improved user experience, greater safety, greater functionality to users of virtual reality for machine control and/or machine communications applications using wearable (or portable) devices, e.g., head mounted devices (HMDs), wearable goggles, watch computers, smartphones, and so forth, or mobile devices, e.g., autonomous and semi-autonomous robots, factory floor material handling systems, autonomous mass-transit vehicles, automobiles (human or machine driven), and so forth, equipped with suitable sensors and processors employing optical, audio or vibrational detection.
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公开(公告)号：US20230326429A1
公开(公告)日：2023-10-12
申请号：US18333987
申请日：2023-06-13
Applicant: HYPHY USA INC.
Inventor： Eyal FRIEDMAN , Todd ROCKOFF
CPC classification number: G09G5/18 , G09G5/008 , G09G2370/08 , G09G2310/08 , G09G2300/0828
Abstract: A timing controller of a display set is integrated with an encoder for transport of analog signals between a display controller and source drivers of the display panel. The timing controller and integrated encoder are within an integrated circuit and are part of a chipset. The integrated circuit is located immediately after the SoC of a display set or is integrated within the SoC. A video signal sent to the timing controller chip is unpacked into sample values which are permuted into vectors of samples, one vector per encoder. Each vector is converted to analog, encoded and the analog levels are sent to the source drivers which decode into analog samples. Or, each digital vector is encoded and then converted to analog. A line buffer uses a memory to present a row of pixel information to the encoders. A mobile telephone has an integrated TCON with SSVT transmitter.
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公开(公告)号：US11676557B2
公开(公告)日：2023-06-13
申请号：US17566910
申请日：2021-12-31
Applicant: Magnachip Semiconductor, Ltd.
Inventor： Sangsu Park
CPC classification number: G09G5/12 , G09G5/008 , G09G5/18 , G09G2330/021 , G09G2360/18
Abstract: A method of seamlessly switching over between the command mode and the video mode includes receiving a command for switching over from the command mode to the video mode; generating a sampling value by measuring a time interval between a point in time of an internal synchronization signal used in the command mode and a point in time of an external synchronization signal received in the video mode; generating a parameter for shifting the internal synchronization signal based on the sampling value; shifting the internal synchronization signal to synchronize with the external synchronization signal based on the parameter; and switching over from the command mode to the video mode when the internal synchronization signal of the command mode synchronizes with the external synchronization signal. According to the disclosure, while driving a display.
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公开(公告)号：US20180364510A1
公开(公告)日：2018-12-20
申请号：US16109886
申请日：2018-08-23
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Shunpei YAMAZAKI , Jun KOYAMA , Hiroyuki MIYAKE , Masashi TSUBUKU , Kosei NODA
IPC: G02F1/1368 , H01L29/786 , H01L27/12 , G09G3/36
CPC classification number: G02F1/1368 , G09G3/3611 , G09G3/3648 , G09G3/3674 , G09G3/3677 , G09G5/18 , G09G2310/0286 , G09G2320/103 , G09G2330/021 , G09G2330/022 , G09G2330/027 , H01L27/1225 , H01L29/7869
Abstract: A liquid crystal display device includes: a driver circuit portion; a pixel portion; a signal generation circuit for generating a control signal for driving the driver circuit portion and an image signal which is supplied to the pixel portion; a memory circuit; a comparison circuit for detecting a difference of image signals for a series of frame periods among image signals stored for respective frame periods in the memory circuit; a selection circuit which selects and outputs the image signals for the series of frame periods when the difference is detected in the comparison circuit; and a display control circuit which supplies the control signal and the image signals output from the selection circuit, to the driver circuit portion when the difference is detected in the comparison circuit, and stops supplying the control signal to the driver circuit portion when the difference is not detected in the comparison circuit.
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公开(公告)号：US20180357983A1
公开(公告)日：2018-12-13
申请号：US16049108
申请日：2018-07-30
Applicant: Sony Corporation
Inventor： Akira Yumoto
IPC: G09G5/18 , G09G3/3225 , G09G3/3233 , G09G3/32
CPC classification number: G09G5/18 , G09G3/32 , G09G3/3225 , G09G3/3233 , G09G2300/0404 , G09G2300/043 , G09G2300/0819 , G09G2300/0861 , G09G2300/0866 , G09G2310/0267 , G09G2320/0233 , G09G2320/043
Abstract: Herein disclosed an image display including: row scan lines configured to supply a control signal; column signal lines configured to supply a video signal; and pixel circuits configured to be disposed at intersections between the scan lines and the signal lines, wherein each of the pixel circuits has at least a drive transistor, a sampling transistor connected to a gate of the drive transistor, a capacitive part connected between the gate and a source of the drive transistor, and a light-emitting element connected to the source of the drive transistor.
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