公开(公告)号：US20210398477A1

公开(公告)日：2021-12-23

申请号：US16908747

申请日：2020-06-23

Applicant: Novatek Microelectronics Corp.

Inventor： Te-Hsien Kuo

IPC: G09G3/20

Abstract: A display driver and a polarity inversion method thereof are provided. The display driver includes multiple channel pairs and a polarity inversion control circuit. The channel pairs are suitable for driving a display panel. Each of the channel pairs includes a positive polarity channel, a negative polarity channel, and a switching circuit. The polarity inversion control circuit controls the switching circuits so that the position where the polarity of a first data line of the display panel is inverted in a first frame period is different from the position where the polarity of the first data line is inverted in a second frame period. The display driver can prevent polarity inversion from occurring at a fixed position as much as possible.

公开(公告)号：US11201181B2

公开(公告)日：2021-12-14

申请号：US17078060

申请日：2020-10-22

Applicant: NOVATEK Microelectronics Corp.

Inventor： Chi-Ting Chen

IPC: H01L27/146

Abstract: An image sensor includes a sensor layer and a metal layer. The sensor layer includes a plurality of sensing elements arranged as a 2-dimensional array along a first direction and a second direction. The metal layer includes a plurality of metal wires configured to form a plurality of apertures superposed on the plurality of sensing elements. At least one of the plurality of metal wires forming the plurality of apertures is entirely disposed along a third direction different from the first direction and the second direction.

公开(公告)号：US20210373739A1

公开(公告)日：2021-12-02

申请号：US16884294

申请日：2020-05-27

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Jyun-Sian Li ,  Yun-Hsiang Yeh ,  Yen-Heng Chen

IPC: G06F3/041 ,  G06F3/044 ,  G06K9/00

Abstract: A method for touch sensing enhancement implemented in a single chip, a single chip capable of achieving touch sensing enhancement, and a computing apparatus are introduced. The single chip is used to be coupled to a display panel with a touch sensor and a fingerprint sensor. The computing apparatus may include the display panel, the single chip, and a processing unit, wherein the single chip is coupled between the display panel and processing unit. The method includes obtaining touch sensing data by a touch sensing module disposed within the single chip and coupled to the touch sensor; obtaining fingerprint sensing data by a fingerprint sensing module disposed within the single chip and coupled to the fingerprint sensor; and generating output touch data based on the touch sensing data and the fingerprint sensing data. With the contribution of the fingerprint sensing data, touch sensing enhancement can be achieved.

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：US20210366407A1

公开(公告)日：2021-11-25

申请号：US17123129

申请日：2020-12-16

Applicant: Novatek Microelectronics Corp.

Inventor： Chun-Hung Chen ,  Chia-Hsin Tung ,  Hsin-Hung Ou ,  Hung-Yi Lin

IPC: G09G3/3291 ,  G09G3/3258

Abstract: A driving device and an operation method thereof are provided. The driver device includes a source driver circuit, an output switching circuit, and an equalization control circuit. Two input ends of the output switching circuit are coupled to two output ends of the source driver circuit. Two output ends of the output switching circuit are coupled to two data lines of an LED display panel. The equalization control circuit checks whether sub-pixel data of the two data lines meets a predetermined condition. A plurality of sub-pixels located on a current display line of the LED display panel are reset in a reset period. In a data scanning period after the reset period, the equalization control circuit determines whether to control the output switching circuit to perform an equalization operation on the two data lines according to the checking result.

公开(公告)号：US11178351B1

公开(公告)日：2021-11-16

申请号：US16869584

申请日：2020-05-07

Applicant: Novatek Microelectronics Corp.

Inventor： Kuo Wei Cheng ,  Chi-Ting Chen

IPC: H04N5/378 ,  H04N5/357 ,  H01L27/146 ,  H04N5/3745

Abstract: A readout circuit is provided. The readout circuit is coupled to a pixel circuit for reading out signals from the pixel circuit. The readout circuit includes a biasing circuit. The biasing circuit includes a cascode transistor and a biasing transistor. A first terminal of the cascode transistor is coupled to an output terminal of the biasing circuit and the pixel circuit. A second terminal of the cascode transistor is coupled to a first terminal of the biasing transistor. A second terminal of the biasing transistor is coupled to a negative voltage.

公开(公告)号：US11177230B2

公开(公告)日：2021-11-16

申请号：US16737883

申请日：2020-01-08

Applicant: NOVATEK Microelectronics Corp.

Inventor： Hsien-Wen Lo ,  Chang-Sheng Tseng

IPC: H01L23/00 ,  H01L27/32

Abstract: An electronic device includes a substrate and first bumps. The first bumps are disposed on the substrate and arranged in a first bump row. Each first bump has a first end and a second end opposite to each other. Centers of the first ends of the first bumps are on a first axial line. A first axial coordinate of a center of the second end of a respective first bump relative to a second axial line perpendicular to the first axial line is XA(1+βAYA), in which XA is a first axial coordinate of the center of the first end of the respective first bump relative to the second axial line, YA is a second axial coordinate of the center of the second end of the respective first bump relative to the first axial line, and βA is a slope coefficient of the respective first bump.

公开(公告)号：US20210352237A1

公开(公告)日：2021-11-11

申请号：US16869584

申请日：2020-05-07

Applicant: Novatek Microelectronics Corp.

Inventor： Kuo Wei Cheng ,  Chi-Ting Chen

IPC: H04N5/378 ,  H04N5/3745 ,  H04N5/357 ,  H01L27/146

Abstract: A readout circuit is provided. The readout circuit is coupled to a pixel circuit for reading out signals from the pixel circuit. The readout circuit includes a biasing circuit. The biasing circuit includes a cascode transistor and a biasing transistor. A first terminal of the cascode transistor is coupled to an output terminal of the biasing circuit and the pixel circuit. A second terminal of the cascode transistor is coupled to a first terminal of the biasing transistor. A second terminal of the biasing transistor is coupled to a negative voltage.

公开(公告)号：US11163971B2

公开(公告)日：2021-11-02

申请号：US16691627

申请日：2019-11-22

Applicant: Novatek Microelectronics Corp.

Inventor： Min Huang

IPC: G06K9/00

Abstract: An optical fingerprint sensing apparatus and an anti-relative illumination (anti-RI) compensation method thereof are provided. The optical fingerprint sensing apparatus includes an optical fingerprint sensor module and a processing circuit. The optical fingerprint sensor module is configured to capture a fingerprint image frame. The processing circuit is coupled to the optical fingerprint sensor module to receive the fingerprint image frame. The processing circuit obtains an anti-RI gain value corresponding to a current pixel in the fingerprint image frame from a lookup table. The processing circuit compensates an original illumination of the current pixel using the anti-RI gain value to obtain a compensated illumination of the current pixel.

公开(公告)号：US20210333921A1

公开(公告)日：2021-10-28

申请号：US16860082

申请日：2020-04-28

Applicant: Novatek Microelectronics Corp.

Inventor： Yi-Ting Chung ,  Hsing-Lung Chung ,  Ding-Teng Shih ,  Bo-Jun Peng

IPC: G06F3/041 ,  G06K9/00

Abstract: A display device, a multi-fingerprint detection device and an operation method thereof are provided. The multi-fingerprint detection device includes a touch circuit and a fingerprint sensing control circuit. The touch circuit performs touch detection control on a touch panel module to determine a plurality of touch regions of a touch event on the touch panel module. The fingerprint sensing control circuit performs fingerprint sensing control on the touch panel module, so that the touch panel module senses a plurality of target sub-regions corresponding to the touch regions, and then obtains fingerprint sensing result of the target sub-regions. The fingerprint sensing control circuit divides the fingerprint sensing result into a plurality of sub-fingerprint images according to the touch regions.