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公开(公告)号：US12118954B2
公开(公告)日：2024-10-15
申请号：US18354751
申请日：2023-07-19
Applicant: Japan Display Inc.
Inventor： Takehiro Shima
IPC: G09G3/20 , G02F1/1345 , G02F1/1362 , G09G3/36 , G11C11/41
CPC classification number: G09G3/3611 , G02F1/13454 , G02F1/1362 , G09G3/20 , G09G3/3648 , G02F2201/56 , G09G2300/04 , G09G2300/0426 , G09G2300/0452 , G09G2300/0857 , G09G2310/0278 , G09G2310/0291 , G09G2310/08 , G11C11/41
Abstract: According to one embodiment, a display device includes a pair of substrates including a display area in which pixels are arranged, pixel electrodes and memories provided in the pixels, signal lines supplied with digital signals, switching elements connecting the memories and the signal lines, scanning lines supplied with scanning signals, a first driver unit, and a second driver unit. The first driver unit is provided in a peripheral area around the display area, and supplies the digital signal to the signal line. The second driver unit is provided in the peripheral area, and supplies the scanning signal to the scanning line. In the display device, at least a part of the first driver unit is provided between the display area and the second driver unit.
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公开(公告)号：US12045421B2
公开(公告)日：2024-07-23
申请号：US18196252
申请日：2023-05-11
Applicant: Japan Display Inc.
Inventor： Hirofumi Kato , Ayato Kitamura
CPC classification number: G06F3/0421 , G06V40/13 , G09G3/3611
Abstract: A detection device includes: optical sensors; switching elements, gate lines, and signal lines corresponding to the optical sensors; a detection circuit that is supplied with signals from the optical sensors through the signal lines; and a signal line selection circuit for switching a coupling state between the signal lines and the detection circuit. A drive signal is supplied to the gate lines row by row to bring the switching elements belonging to a predetermined row into a coupled state. The signal line selection circuit couples the signal lines to the detection circuit column by column in a predetermined order in a reading period of the predetermined row. A reset potential is supplied to the optical sensors and the signal lines belonging to the predetermined row after completion of the reading period of the predetermined row and before start of the reading period of a row next to the predetermined row.
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公开(公告)号：US20240233669A9
公开(公告)日：2024-07-11
申请号：US18279152
申请日：2021-03-10
Applicant: IIX INC.
Inventor： Makoto HATAKENAKA , Takashi SAKAMOTO , Mitsuo HAGIWARA , Norimasa SENDA , Yoshihide MINEGISHI , Hiroshi MURASE
IPC: G09G3/36
CPC classification number: G09G3/3611 , G09G2320/0233 , G09G2320/0626 , G09G2320/0673 , G09G2360/16
Abstract: A panel drive circuit having an input interface to which an image signal is input, a gamma correction circuit that corrects an image processing signal generated by an image processing circuit performing image processing on the image signal input to the input interface, such that a gamma correction signal thus generated has predetermined gamma characteristics, an unevenness correction circuit that corrects the gamma correction signal generated through the correction by the gamma correction circuit, based on correction data for reducing unevenness of a display panel, and an D/A convertor that has a variable output voltage range, and performs D/A conversion on an unevenness correction signal generated through the correction by the unevenness correction circuit and outputs the signal thus generated to the display panel, and the unevenness correction circuit changes the correction method according to the output voltage range of the D/A convertor.
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公开(公告)号：US20240233655A1
公开(公告)日：2024-07-11
申请号：US18391544
申请日：2023-12-20
Applicant: InnoLux Corporation
Inventor： Chien-Hao KUO , Yu-Jyun LYU
CPC classification number: G09G3/3406 , G02F1/13306 , G09G3/3611 , G09G2320/0257 , G09G2330/021 , G09G2330/025
Abstract: An electronic device including a display module and a backlight module is disclosed. The display module includes a display charging period and a liquid crystal rotating period in one frame. The backlight module is configured to provide a light source to the display module, and the backlight module includes a backlight driving period corresponding to one frame of the display module. A portion of the backlight driving period of an Nth frame is overlapped with the display charging period of an (N+1)th frame, and N is a positive integer.
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公开(公告)号：US20240221697A1
公开(公告)日：2024-07-04
申请号：US17923946
申请日：2021-11-16
Inventor： Junwei ZHANG , Feifei WANG , Wei HAO , Wengang SU , Kaimin YIN , Xingce SHANG , Taotao DUAN , Liguang GENG , Huangfei CHA , Yu DENG
IPC: G09G3/36 , G02F1/1335 , G02F1/13357 , H01L25/16
CPC classification number: G09G3/3611 , G02F1/133603 , G02F1/133612 , G09G2310/0243 , G09G2330/00 , H01L25/167
Abstract: A driver circuit includes a logic control component and a plurality of pins coupled to the logic control component. The plurality of pins include a clock pin, a data pin and at least two output pins. The clock pin is configured to receive a clock signal. The data pin is configured to receive, under control of the logic control component, a data signal in a period of an active level of the clock signal. The logic control component is configured to generate a driving control signal corresponding to each output pin according to the data signal, so as to control an electrical signal flowing through the output pin.
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Patent Agency Ranking
公开(公告)号：US11984061B2
公开(公告)日：2024-05-14
申请号：US17791153
申请日：2021-01-07
Applicant: Snap Inc.
Inventor： Ian Kyles , Nicholas William Melena , Edmund Passon , Joshua T. Wiersma
CPC classification number: G09G3/2096 , G09G3/2007 , G09G3/32 , G09G3/3611 , G09G2310/06 , G09G2310/08 , G09G2370/00
Abstract: Systems and methods for varying an intensity of pixels of displays are provided. A display subsystem may include a display driver for receiving image frame data and commands from an image or data source, including pixel intensity values for bit planes of an image frame; a parser for receiving the image frame data and the commands, and configured to determine a drive waveform having an pixel drive value and a pixel drive time interval for each bit plane of the image frame data; a display backplane for receiving the drive waveform, the display backplane including a pixel array comprising an array of pixels, each pixel driven by a pixel circuit; and display driver circuitry for driving the pixels in accordance with the drive waveform; and wherein an intensity of the pixel varies for each bit plane according to the pixel drive value and the pixel drive time interval.
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公开(公告)号：US11978411B2
公开(公告)日：2024-05-07
申请号：US18120312
申请日：2023-03-10
Applicant: STMicroelectronics S.r.l.
Inventor： Gaetano L'Episcopo , Giovanni Conti , Carmelo Occhipinti , Mario Antonio Aleo
CPC classification number: G09G3/3426 , G09G3/3611 , G09G2310/08 , G09G2330/021
Abstract: A non-emissive display includes a backlight controller sending a pulse during each sub-frame of a plurality of frames to row and column drivers that drive backlight zones. The row drivers count each pulse to keep a pulse count total, and reset the pulse count total when it is equal to a first number indicating how many row drivers are present. Each row driver activates its channels and waits for a next pulse if the pulse count total is not equal to the first number and if the pulse count total is equal to a second number indicating in which sub-frame that first driver is to be activated. Each row driver waits for a next pulse if the pulse count total is not equal to the first number and the second number. Each column driver activates its channel in response to receipt of each pulse.
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公开(公告)号：US20240127762A1
公开(公告)日：2024-04-18
申请号：US18377927
申请日：2023-10-09
Applicant: Japan Display Inc.
Inventor： Shinichi KOMURA , Toshiharu MATSUSHIMA
CPC classification number: G09G3/3406 , G06F3/013 , G09G3/3611 , G09G2310/061 , G09G2310/08 , G09G2340/0435 , G09G2354/00
Abstract: According to an aspect, a display device includes: a display panel having a display region in which pixel rows are arranged in a second direction; a scanning circuit configured to supply a drive signal to scan the pixel rows; a light source configured to emit light toward the display panel; and a light source control circuit configured to control light emission timing of the light source. The display region is divided into regions in the second direction and includes a first region including two or more pixel rows consecutively arranged in the second direction, and a second region except for the first region. The scanning circuit sequentially scans the pixel rows in the first region, and simultaneously scans two or more pixel rows consecutively arranged in the second direction in the second region.
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公开(公告)号：US20240112645A1
公开(公告)日：2024-04-04
申请号：US18378757
申请日：2023-10-11
Applicant: Semiconductor Energy Laboratory Co., Ltd.
Inventor： Kenichi WAKIMOTO , Masahiko HAYAKAWA
CPC classification number: G09G3/3648 , G09G3/3611 , H01L27/1225 , G09G2300/0408 , G09G2330/022 , G09G2340/0435 , G09G2360/14
Abstract: To reduce power consumption of a display device with the use of a simple structure and a simple operation. The display device includes an input device. Input of an image signal to a driver circuit is controlled in accordance with an image operation signal output from the input device. Specifically, input of image signals at the time when the input device is not operated is less frequent than that at the time when the input device is operated. Accordingly, display degradation (deterioration of display quality) caused when the display device is used can be prevented and power consumed when the display device is not used can be reduced.
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公开(公告)号：US20240105133A1
公开(公告)日：2024-03-28
申请号：US18528177
申请日：2023-12-04
Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Inventor： Hajime KIMURA
CPC classification number: G09G3/3426 , G06T1/00 , G06T3/4053 , G06T3/4069 , G09G3/3611 , G09G3/3648 , G09G5/005 , G06T2200/16 , G06T2200/28 , G06T2210/36 , G09G3/3614 , G09G2300/0426 , G09G2300/0434 , G09G2300/0814 , G09G2300/0876 , G09G2310/0224 , G09G2310/0229 , G09G2320/0252 , G09G2320/0257 , G09G2320/0261 , G09G2320/0276 , G09G2320/0646 , G09G2320/106 , G09G2340/0407 , G09G2340/16 , G09G2360/00
Abstract: A low-resolution image is displayed at higher resolution and afterimages are reduced. Resolution is made higher by super-resolution processing. In this case, the super-resolution processing is performed after frame interpolation processing is performed. Further, in that case, the super-resolution processing is performed using a plurality of processing systems. Therefore, even when frame frequency is made higher, the super-resolution processing can be performed at high speed. Further, since frame rate doubling is performed by the frame interpolation processing, afterimages can be reduced.
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