公开(公告)号：US20240078969A1

公开(公告)日：2024-03-07

申请号：US18235891

申请日：2023-08-21

Applicant: NOVATEK Microelectronics Corp.

Inventor： Xuan-Yong Lin ,  Shang-Yu Su ,  Feng-Ting Pai

IPC: G09G3/3208 ,  G06T3/40 ,  G06T5/50 ,  G09G3/20

CPC classification number: G09G3/3208 ,  G06T3/40 ,  G06T5/50 ,  G09G3/2007 ,  G09G2320/0257 ,  G09G2340/02 ,  G09G2340/16 ,  G09G2360/12 ,  G09G2360/16

Abstract: An image processing circuit includes a receiver, at least one memory, a recognition circuit, a calculation circuit and a compensation circuit. The receiver is configured to receive a current image frame and a plurality of previous image frames. The at least one memory is configured to store the plurality of previous image frames. The recognition circuit is configured to select a first previous image frame or a second previous image frame among the plurality of previous image frames from the at least one memory. The calculation circuit is configured to calculate a compensation value for the current image frame according to at least one of the first previous image frame and the second previous image frame by referring to a lookup table (LUT). The compensation circuit is configured to modify a current image data of the current image frame by using the compensation value.

公开(公告)号：US11915666B2

公开(公告)日：2024-02-27

申请号：US17746988

申请日：2022-05-18

Applicant: Novatek Microelectronics Corp.

Inventor： Jung-Hsuan Sung ,  Kai-Wen Shao ,  Chien-Yu Chen

IPC: G09G3/3275 ,  G09G3/20 ,  G09G5/00

CPC classification number: G09G5/008 ,  G09G3/2096 ,  G09G3/3275 ,  G09G2310/0264 ,  G09G2320/04

Abstract: A display device, a display driving integrated circuit (DDIC), and an operation method are provided. The display device includes a display panel, a first DDIC, and a second DDIC. The first DDIC generates a display synchronization signal, and drives a first display area of a display panel according to the display synchronization signal. The second DDIC is coupled to the first DDIC to receive the display synchronization signal. The second DDIC performs a frequency tracking operation on an internal clock signal of the second DDIC by selectively using the display synchronization signal. The second DDIC drives a second display area of the display panel according to the internal clock signal and the display synchronization signal.

公开(公告)号：US11906355B1

公开(公告)日：2024-02-20

申请号：US18162687

申请日：2023-01-31

Applicant: Novatek Microelectronics Corp.

Inventor： Yu-Ying Tang ,  Yao Chung Chang ,  Chih-Chang Lai

IPC: G06V40/13 ,  G06F3/041 ,  G01J1/44 ,  G01J1/42 ,  H10K39/34 ,  G02F1/1333 ,  G02F1/1335 ,  H10K59/80 ,  H10K59/125

CPC classification number: G01J1/44 ,  G01J1/4204 ,  G02F1/13338 ,  G02F1/133512 ,  G06F3/0412 ,  G06V40/1318 ,  H10K39/34 ,  H10K59/8792 ,  G01J2001/446 ,  G01J2001/448 ,  H10K59/125

Abstract: An in-cell optical sensing display panel includes a pixel array, a plurality of first optical sensors and a plurality of second optical sensors. The pixel array is disposed in an active area of the in-cell optical sensing display panel, and the active area includes a first region and a second region which surrounds the first region. The sensor array is disposed in the first region of the active area and is configured to sense a fingerprint of a finger touching a surface of the in-cell optical sensing display panel. The second optical sensors are disposed in the second region of the active area and are configured to sense ambient light, and the second optical sensors are not to be used for fingerprint sensing.

公开(公告)号：US11889057B2

公开(公告)日：2024-01-30

申请号：US17585569

申请日：2022-01-27

Applicant: NOVATEK Microelectronics Corp.

Inventor： Yu-Min Wang

IPC: H04N19/172 ,  H04N19/177 ,  H04N19/105 ,  H04N19/159

CPC classification number: H04N19/105 ,  H04N19/159 ,  H04N19/172 ,  H04N19/177

Abstract: A method for a video encoder includes steps of: receiving a series of input frames; performing at least one of intra-prediction and inter-prediction on the series of input frames for generating at least one of an intra frame (I-frame), a predictive frame (P-frame), and a key predictive frame (key P-frame); generating an encoded bitstream with respect to a first input frame determined as the I-frame among the series of input frames; and performing inter-prediction on a second input frame determined as a key P-frame among the series of input frames according to a first reference frame which is derived from the encoded bitstream with respect to the first input frame.

公开(公告)号：US20240019965A1

公开(公告)日：2024-01-18

申请号：US17813041

申请日：2022-07-17

Applicant: NOVATEK Microelectronics Corp.

Inventor： Yu-Huang CHEN ,  Ting-Yu CHAN

IPC: G06F3/041

CPC classification number: G06F3/04186 ,  G06F3/04166

Abstract: A touch sensing method for a touch panel includes following operations: entering a first touch sensing process and performing a non-water mode; determining whether there is water on the touch panel in the first touch sensing process; entering a second touch sensing process and performing a water mode when there is water detected on the touch panel in the first touch sensing process; determining whether there is water on the touch panel in the second touch sensing process; and entering the first touch sensing process and performing the non-water mode when there is no water detected on the touch panel in the second touch sensing process.

公开(公告)号：US11871146B1

公开(公告)日：2024-01-09

申请号：US17889368

申请日：2022-08-16

Applicant: NOVATEK Microelectronics Corp.

Inventor： Chih Chang ,  I-Feng Lin ,  Hsiao-En Chang

IPC: G06F5/00 ,  H04N7/01

CPC classification number: H04N7/0135

Abstract: A video processor is configured to perform the following steps: receiving a series of input frames; calculating a buffer stage value according to the series of input frames, wherein the buffer stage value corresponds to a status of the input frames stored in a frame buffer of the video processor; and selecting a frame set from the input frames stored in the frame buffer for generating an interpolated frame as an output frame to be output by the video processor according to the buffer stage value.

公开(公告)号：US11862091B1

公开(公告)日：2024-01-02

申请号：US18094407

申请日：2023-01-09

Applicant: NOVATEK Microelectronics Corp.

Inventor： Kuo-Wei Cheng

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0852 ,  G09G2310/0251 ,  G09G2320/0233

Abstract: A pixel circuit of a display panel includes a driving transistor, first to fifth transistors, and a light emitting device. The driving transistor includes a first terminal, a second terminal and a gate terminal. The first transistor is coupled between a power supply terminal and the first terminal of the driving transistor. The second transistor is coupled between the first terminal of the driving transistor and the gate terminal of the driving transistor. The third transistor is coupled between the second terminal of the driving transistor and the gate terminal of the driving transistor. The fourth transistor is coupled between a data input terminal and the second terminal of the driving transistor. The fifth transistor is coupled to the second terminal of the driving transistor. The light emitting device is coupled between the fifth transistor and a reference voltage terminal.

公开(公告)号：US11862065B2

公开(公告)日：2024-01-02

申请号：US17692190

申请日：2022-03-11

Applicant: Novatek Microelectronics Corp.

Inventor： Grace Li ,  Jen-Ta Yang ,  Yen-Tao Liao ,  Yu-Hung Su

IPC: G09G3/20

CPC classification number: G09G3/2096 ,  G09G2310/08 ,  G09G2340/0435

Abstract: A timing control device for the display panel includes a control circuit. The control circuit is configured to generate a plurality of gate scanning control signals and a data transmission control signal. In response to that a display refresh rate changes from a first frequency to a second frequency, the control circuit adjusts the plurality of gate scanning control signals to generate a plurality of adjusted gate scanning control signals, or adjusts the data transmission control signal to generate an adjusted data transmission control signal, for driving a display panel under the second frequency as the display refresh rate.

公开(公告)号：US11854476B1

公开(公告)日：2023-12-26

申请号：US17841696

申请日：2022-06-16

Applicant: Novatek Microelectronics Corp.

Inventor： Yao-Min Chou ,  Kai-Wen Shao

IPC: G09G3/3208 ,  G06T1/20

CPC classification number: G09G3/3208 ,  G06T1/20 ,  G09G2310/08 ,  G09G2360/02 ,  G09G2360/18

Abstract: The disclosure is directed to a timing controller having a mechanism for frame synchronization, a display panel having the timing controller thereof, and a display system having the timing controller thereof. According to an aspect of the disclosure, the disclosure provides an integrated circuit which includes a timing controller to transmit a first TE signal to an application processor and receive a first image frame from the application processor after the application processor receives the first TE signal, and a control circuit to generate a first sync signal when the timing controller receives the first image frame, wherein when the application processor receives a second TE signal and the application processor is not ready to transmit a second image frame to the timing controller, the control circuit delays a first waiting period to generate a second sync signal.

公开(公告)号：US11830280B1

公开(公告)日：2023-11-28

申请号：US17869773

申请日：2022-07-20

Applicant: NOVATEK Microelectronics Corp.

Inventor： Jung-Chen Chung ,  Chi-Ting Chen ,  Jung-Yu Tsai

IPC: G06V40/13 ,  G06F3/041

CPC classification number: G06V40/1318 ,  G06F3/0418 ,  G06F3/04166

Abstract: An image processing circuit for controlling a panel is configured to: receive information of a fixed pattern noise (FPN) corresponding to a first sensing zone of the panel, wherein the first sensing zone is determined according to a touch position of a finger; scan the first sensing zone to perform fingerprint sensing on the finger, to receive a plurality of raw sensing signals; remove the FPN from the plurality of raw sensing signals to generate a plurality of modified sensing signals; and output a plurality of fingerprint data to a host for fingerprint recognition, wherein the plurality of fingerprint data are converted from the plurality of modified sensing signals.