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公开(公告)号：US12141392B2
公开(公告)日：2024-11-12
申请号：US17531848
申请日：2021-11-22
Applicant: NOVATEK MICROELECTRONICS CORP.
Inventor： Keko-Chun Liang , Jhih-Siou Cheng , Hsu-Chih Wei , Jui-Chan Chang , Ju-Lin Huang , Po-Ying Chen , Wen-Yi Hsieh
Abstract: The present invention discloses a display panel and a display device. The display panel comprises a plurality of common electrode blocks and a plurality of display regions. During a display period, one or more common electrode blocks corresponding to one of the display regions which is to be displayed during the display period are coupled to a common voltage; and during the display period, one or more of the common electrode blocks corresponding to the display regions which are not to be displayed during the display period are kept in a floating state.
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公开(公告)号：US20250007475A1
公开(公告)日：2025-01-02
申请号：US18624110
申请日：2024-04-01
Applicant: NOVATEK Microelectronics Corp.
Inventor： Jui-Chan Chang , Jhih-Siou Cheng , Ren-Chieh Yang , Jin-Yi Lin
IPC: H03F3/45
Abstract: A calibration circuit of a differential difference amplifier (DDA) includes a trimming circuit, a bias generator and a compensation output circuit. The trimming circuit is used to output a trimming code. The bias generator, coupled to the trimming circuit, is used to generate a bias current or voltage according to the trimming code. The compensation output circuit, coupled to the bias generator, is used to receive a data code of the DDA and output the bias current or voltage corresponding to the data code to the DDA.
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公开(公告)号：US11900896B2
公开(公告)日：2024-02-13
申请号：US17881622
申请日：2022-08-05
Applicant: NOVATEK Microelectronics Corp.
Inventor： Jhih-Siou Cheng , Yen-Kai Chen , Jui-Chan Chang , Chih-Hsien Chou
CPC classification number: G09G3/3688 , G09G3/32 , G09G2310/0248 , G09G2310/0291 , G09G2310/061 , G09G2330/023
Abstract: A source driver includes a plurality of output terminals and a plurality of driving channels. Each of the plurality of driving channels is coupled to an output terminal among the plurality of output terminals and includes an output buffer, an output enable switch and a charge sharing circuit. The output enable switch is coupled between the output buffer and the corresponding output terminal. The charge sharing circuit is coupled to the corresponding output terminal. Wherein, the charge sharing circuits of at least two of the plurality of driving channels are commonly coupled to a charge sharing bus.
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公开(公告)号：US20230138843A1
公开(公告)日：2023-05-04
申请号：US17881622
申请日：2022-08-05
Applicant: NOVATEK Microelectronics Corp.
Inventor： Jhih-Siou Cheng , Yen-Kai Chen , Jui-Chan Chang , Chih-Hsien Chou
IPC: G09G3/32
Abstract: A source driver includes a plurality of output terminals and a plurality of driving channels. Each of the plurality of driving channels is coupled to an output terminal among the plurality of output terminals and includes an output buffer, an output enable switch and a charge sharing circuit. The output enable switch is coupled between the output buffer and the corresponding output terminal. The charge sharing circuit is coupled to the corresponding output terminal. Wherein, the charge sharing circuits of at least two of the plurality of driving channels are commonly coupled to a charge sharing bus.
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