公开(公告)号：US20230269845A1

公开(公告)日：2023-08-24

申请号：US17964059

申请日：2022-10-12

Applicant: NOVATEK Microelectronics Corp.

Inventor： Chih-Hsien Chou ,  Jhih-Siou Cheng ,  Jin-Yi Lin ,  Ren-Chieh Yang

IPC: H05B45/325 ,  H05B45/46 ,  H05B45/345 ,  H05B45/54 ,  G09G3/32

CPC classification number: H05B45/325 ,  H05B45/46 ,  H05B45/345 ,  H05B45/54 ,  G09G3/32

Abstract: A display driver circuit for controlling a display panel having a plurality of light-emission diode (LED) strings includes a plurality of current regulators and a control circuit. Each of the plurality of current regulators is configured to control one of the plurality of LED strings. The control circuit, coupled to the plurality of current regulators, is configured to generate a plurality of pulses in a plurality of pulse width modulation (PWM) signals and output each of the plurality of PWM signals to a respective current regulator among the plurality of current regulators. Wherein, the plurality of pulses are scrambled.

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.

公开(公告)号：US10594264B2

公开(公告)日：2020-03-17

申请号：US16021032

申请日：2018-06-28

Applicant: NOVATEK Microelectronics Corp.

Inventor： Cheng-En Hsieh ,  Shen-Iuan Liu ,  Tzu-Chien Tzeng ,  Jin-Yi Lin ,  Kuo-Sheng Huang ,  Ju-Lin Huang

IPC: H03G3/10 ,  H03F1/02 ,  H03F3/00 ,  H03F3/45 ,  H03G1/00 ,  H03K19/0185

Abstract: A dynamic amplifier includes a first output capacitor, a first switch, a current source, a second switch, a voltage detector, a third switch and a level shifter. The first switch is coupled between a first terminal of the first output capacitor and a voltage detection node. The second switch is coupled to the current source and the voltage detection node. The voltage detector is coupled to the voltage detection node and the first switch. The third switch is coupled between the voltage detection node and a power source. The level shifter is coupled to a second terminal of the first output capacitor.

公开(公告)号：US20200020282A1

公开(公告)日：2020-01-16

申请号：US16512413

申请日：2019-07-16

Applicant: Novatek Microelectronics Corp.

Inventor： Chih-Hsien Chou ,  Jhih-Siou Cheng ,  Jin-Yi Lin

IPC: G09G3/3291

Abstract: A source driver is configured to drive an organic light-emitting diode (OLED) display panel. The source driver includes a sensing circuit and an operational amplifier. The sensing circuit is configured to sense pixel information of an OLED pixel circuit through a sensing line of the OLED display panel. The operational amplifier includes an amplifier circuit and at least one switch circuit. The amplifier circuit includes at least one gain circuit. An input terminal of the amplifier circuit is coupled to an output terminal of the sensing circuit. Each of the at least one switch circuit is coupled between a pair of output terminals of a corresponding one of the at least one gain circuit.