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公开(公告)号：US11482293B2
公开(公告)日：2022-10-25
申请号：US17363020
申请日：2021-06-30
Applicant: NOVATEK Microelectronics Corp.
Inventor： Che-Wei Yeh , Keko-Chun Liang , Yu-Hsiang Wang , Yong-Ren Fang , Yi-Chuan Liu , Yi-Yang Tsai , Po-Hsiang Fang
Abstract: A control system includes a plurality of driving circuits coupled in series, which includes a first driving circuit and a second driving circuit. The first driving circuit includes a first receiver, a first transmitter and a replica receiver. The first transmitter is coupled to the first receiver, and the replica receiver is coupled to an output terminal of the first transmitter. The second driving circuit, coupled to the first driving circuit, includes a second receiver and a second transmitter. The second receiver is coupled to the first transmitter, and the second transmitter is coupled to the second receiver.
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公开(公告)号：US11288989B2
公开(公告)日：2022-03-29
申请号：US16867483
申请日：2020-05-05
Applicant: Novatek Microelectronics Corp.
Inventor： Yi-Yang Tsai , Po-Hsiang Fang , Jhih-Siou Cheng , Ju-Lin Huang
IPC: G09G3/00 , G09G3/3291
Abstract: A source driver and a calibration method thereof are provided. The source driver for driving and sensing a display panel of the disclosure includes a sensing circuit, an analog-to-digital converter circuit and a digital arithmetic circuit. The sensing circuit is configured to receive a reference signal through a sensing channel when the source driver is operated in a calibration mode. The analog-to-digital converter circuit is coupled to the sensing circuit, and configured to convert the reference signal to a digital reference signal. The digital arithmetic circuit is coupled to the analog-to-digital converter circuit, and configured to obtain a calibration parameter according to the digital reference signal. The source driver calibrates a sensing path for sensing a display panel according to the calibration parameter when the source driver is operated in a sensing mode.
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公开(公告)号：US20210072859A1
公开(公告)日：2021-03-11
申请号：US16784176
申请日：2020-02-06
Applicant: NOVATEK Microelectronics Corp.
Inventor： Keko-Chun Liang , Yi-Yang Tsai , Jin-Yi Lin , Chun-Wei Kang , Yi-Chuan Liu
IPC: G06F3/041
Abstract: A driving system for a touch display device includes a timing controller, configured to output a plurality of first data and receive a plurality of second data; and a driving module, coupled to the timing controller, comprises a display driving module, configured to output a plurality of output voltages according to the plurality of first data output by the timing controller; and a sensing module, configured to receive a plurality of display sensing data and a plurality of touch sensing data to generate the plurality of second data to the timing controller.
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公开(公告)号：US11929007B2
公开(公告)日：2024-03-12
申请号：US17885547
申请日：2022-08-11
Applicant: Novatek Microelectronics Corp.
Inventor： Chun-Wei Kang , Yi-Yang Tsai , Siao-Siang Liu , Shih-Hsuan Huang
CPC classification number: G09G3/2007 , G09G3/2096 , G09G2310/0297 , G09G2320/0233
Abstract: A display driving integrated circuit (IC) and a driving parameter adjustment method thereof are provided. The display driving IC includes a control circuit and a driving parameter determination circuit. The control circuit controls a current driving circuit and a scanning circuit according to a driving parameter, wherein the current driving circuit is suitable for driving multiple driving lines of a light emitting diode (LED) array, and the scanning circuit is suitable for driving multiple scanning lines of the LED array. The driving parameter determination circuit is coupled to the control circuit to provide the driving parameter. The driving parameter determination circuit dynamically adjusts the driving parameter for a target LED in the LED array according to a grayscale value of the target LED.
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公开(公告)号：US20210350731A1
公开(公告)日：2021-11-11
申请号：US16867483
申请日：2020-05-05
Applicant: Novatek Microelectronics Corp.
Inventor： Yi-Yang Tsai , Po-Hsiang Fang , Jhih-Siou Cheng , Ju-Lin Huang
IPC: G09G3/00 , G09G3/3291
Abstract: A source driver and a calibration method thereof are provided. The source driver for driving and sensing a display panel of the disclosure includes a sensing circuit, an analog-to-digital converter circuit and a digital arithmetic circuit. The sensing circuit is configured to receive a reference signal through a sensing channel when the source driver is operated in a calibration mode. The analog-to-digital converter circuit is coupled to the sensing circuit, and configured to convert the reference signal to a digital reference signal. The digital arithmetic circuit is coupled to the analog-to-digital converter circuit, and configured to obtain a calibration parameter according to the digital reference signal. The source driver calibrates a sensing path for sensing a display panel according to the calibration parameter when the source driver is operated in a sensing mode.
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Patent Agency Ranking
公开(公告)号：US12051381B2
公开(公告)日：2024-07-30
申请号：US18167896
申请日：2023-02-13
Applicant: Novatek Microelectronics Corp.
Inventor： Yi-Yang Tsai , Hung-Ho Huang , Tzong-Honge Shieh , Chieh-An Lin , Po-Hsiang Fang , Jhih-Siou Cheng
IPC: G09G3/34
CPC classification number: G09G3/3406 , G09G2310/0237 , G09G2320/0261 , G09G2320/064 , G09G2330/021 , G09G2370/00
Abstract: The disclosure provides a control method of a display driver. The control method includes receiving address information and defining an IC address according to the address information. The IC address includes n bits representing k zones, and n and k are positive integers. The control method further includes receiving the IC address, a black frame data signal and a pulse-width modulation (PWM) signal, and turning on or off the plurality of LEDs in the corresponding zone according to toggle of bit in the black frame data signal. Each bit in the black frame data signal indicates that a plurality of LEDs in a zone among the k zones are turned on or off.
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公开(公告)号：US20240096289A1
公开(公告)日：2024-03-21
申请号：US18167896
申请日：2023-02-13
Applicant: Novatek Microelectronics Corp.
Inventor： Yi-Yang Tsai , Hung-Ho Huang , Tzong-Honge Shieh , Chieh-An Lin , Po-Hsiang Fang , Jhih-Siou Cheng
IPC: G09G3/34
CPC classification number: G09G3/3406 , G09G2310/0237 , G09G2320/0261 , G09G2320/064 , G09G2330/021 , G09G2370/00
Abstract: The disclosure provides a control method of a display driver. The control method includes receiving address information and defining an IC address according to the address information. The IC address includes n bits representing k zones, and n and k are positive integers. The control method further includes receiving the IC address, a black frame data signal and a pulse-width modulation (PWM) signal, and turning on or off the plurality of LEDs in the corresponding zone according to toggle of bit in the black frame data signal. Each bit in the black frame data signal indicates that a plurality of LEDs in a zone among the k zones are turned on or off.
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公开(公告)号：US11188171B2
公开(公告)日：2021-11-30
申请号：US16784176
申请日：2020-02-06
Applicant: NOVATEK Microelectronics Corp.
Inventor： Keko-Chun Liang , Yi-Yang Tsai , Jin-Yi Lin , Chun-Wei Kang , Yi-Chuan Liu
IPC: G06F3/041
Abstract: A driving system for a touch display device includes a timing controller, configured to output a plurality of first data and receive a plurality of second data; and a driving module, coupled to the timing controller, comprises a display driving module, configured to output a plurality of output voltages according to the plurality of first data output by the timing controller; and a sensing module, configured to receive a plurality of display sensing data and a plurality of touch sensing data to generate the plurality of second data to the timing controller.
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公开(公告)号：US12142245B2
公开(公告)日：2024-11-12
申请号：US17945082
申请日：2022-09-14
Applicant: NOVATEK Microelectronics Corp.
Inventor： Che-Wei Yeh , Keko-Chun Liang , Yu-Hsiang Wang , Yong-Ren Fang , Yi-Chuan Liu , Yi-Yang Tsai , Po-Hsiang Fang
Abstract: A control system includes a plurality of driving circuits coupled in series, which include a first driving circuit and a second driving circuit. The first driving circuit includes a first receiver, a first transmitter and a first flag signal selector. The first transmitter is coupled to the first receiver, and the first flag signal selector is coupled between the first receiver and the first transmitter. The second driving circuit, coupled to the first driving circuit, includes a second receiver, a second transmitter and a second flag signal selector. The second transmitter is coupled to the second receiver, and the second flag signal selector is coupled between the second receiver and the second transmitter.
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公开(公告)号：US20230206813A1
公开(公告)日：2023-06-29
申请号：US17885547
申请日：2022-08-11
Applicant: Novatek Microelectronics Corp.
Inventor： Chun-Wei Kang , Yi-Yang Tsai , Siao-Siang Liu , Shih-Hsuan Huang
IPC: G09G3/20
CPC classification number: G09G3/2007 , G09G3/2096 , G09G2310/0297 , G09G2320/0233
Abstract: A display driving integrated circuit (IC) and a driving parameter adjustment method thereof are provided. The display driving IC includes a control circuit and a driving parameter determination circuit. The control circuit controls a current driving circuit and a scanning circuit according to a driving parameter, wherein the current driving circuit is suitable for driving multiple driving lines of a light emitting diode (LED) array, and the scanning circuit is suitable for driving multiple scanning lines of the LED array. The driving parameter determination circuit is coupled to the control circuit to provide the driving parameter. The driving parameter determination circuit dynamically adjusts the driving parameter for a target LED in the LED array according to a grayscale value of the target LED.
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