公开(公告)号：US11974371B2

公开(公告)日：2024-04-30

申请号：US17388748

申请日：2021-07-29

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Yu-Hsiang Wang ,  Che-Wei Yeh ,  Keko-Chun Liang ,  Yong-Ren Fang ,  Yi-Chuan Liu

IPC: H05B45/33 ,  G09G3/32

CPC classification number: H05B45/33 ,  G09G3/32

Abstract: A light-emitting diode LED driver and a LED driving device including the LED driver are provided. The light-emitting diode LED driver includes a decoding circuit that receives a data signal and decodes the data signal to generate display data used to drive LEDs to emit light and display and a recovered clock signal. Further provided is an encoding circuit that encodes the decoded display data by using the recovered clock signal to generate an encoded data signal, where the data signal is encoded in a first encoding format, and the encoded data signal is encoded in a second encoding format.

公开(公告)号：US11966525B2

公开(公告)日：2024-04-23

申请号：US17457669

申请日：2021-12-06

Applicant: NOVATEK Microelectronics Corp.

Inventor： Huan-Teng Cheng

IPC: G06F3/041 ,  G06F3/044 ,  G06F21/32

CPC classification number: G06F3/0412 ,  G06F3/044 ,  G06F21/32 ,  G06F2218/00

Abstract: A touch device with the FPR function includes a plurality of sensing regions, a plurality of first switch sets, a plurality of first shift register circuits, a plurality of second switch sets, and a plurality of second shift register circuits. The first switch sets are coupled to transmitting electrodes and to transmit a first signal. The first shift register circuits are to control the first switch sets according to a plurality of first reset signals and a plurality of first control signals respectively. The second switch sets are coupled to receiving electrodes and to receive a second signal. The second shift register circuits are to control the second switch sets according to a second reset signal and a plurality of second control signals. The first signal and the second signal are for a touch operation and a FPR operation.

公开(公告)号：US11955070B2

公开(公告)日：2024-04-09

申请号：US17533043

申请日：2021-11-22

Applicant: NOVATEK Microelectronics Corp.

Inventor： Kun-Zheng Lin ,  Chang-Hung Chen ,  Wei-Chieh Lin ,  Po-Sheng Liao

IPC: G09G3/3225 ,  G09G3/3266 ,  G09G3/3275

CPC classification number: G09G3/3225 ,  G09G2330/021

Abstract: A first driver circuit is configured to cooperate with a second driver circuit to control a display panel, wherein the first driver circuit is configured to output display data to a first area of the display panel and the second driver circuit is configured to output display data to a second area of the display panel. A method used for the first driver circuit includes outputting at least one emission control signal to control the second area of the display panel when the second driver circuit is disabled.

公开(公告)号：US20240106443A1

公开(公告)日：2024-03-28

申请号：US18534702

申请日：2023-12-10

Applicant: NOVATEK Microelectronics Corp.

Inventor： Chin-Tung CHAN

IPC: H03L7/099 ,  H03L7/085 ,  H03L7/23

CPC classification number: H03L7/099 ,  H03L7/085 ,  H03L7/23

Abstract: A switching method, including: electrically coupling a switching circuit to a first impedance circuit, a second impedance circuit, a positive terminal of a frequency generation circuit and a negative terminal of the frequency generation circuit; adjusting an impedance value of the second impedance circuit according to a first clock signal and a second clock signal outputted by the frequency generation circuit; periodically conducting the negative terminal to one of the first impedance circuit and the second impedance circuit by a first switching unit of the switching circuit; and periodically conducting the positive terminal to the other one of the first impedance circuit and the second impedance circuit by a second switching unit of the switching circuit.

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.

公开(公告)号：US20240096259A1

公开(公告)日：2024-03-21

申请号：US18370865

申请日：2023-09-20

Applicant: NOVATEK Microelectronics Corp.

Inventor： Chien-Hao Li ,  Jen-Chieh Hu ,  Syang-Yun Tzeng

IPC: G09G3/20

CPC classification number: G09G3/2088 ,  G09G2300/0408 ,  G09G2310/0208 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2340/0435 ,  G09G2370/08

Abstract: A method of transmitting signals in a display device includes receiving a first data signal at a first data rate in a first time interval, and receiving a second data signal at a second data rate in a second time interval. The second data signal is generated at the second data rate, the second data rate is different from the first data rate, and the second time interval is non-overlapping with the first time interval.

公开(公告)号：US20240095933A1

公开(公告)日：2024-03-21

申请号：US17949238

申请日：2022-09-21

Applicant: NOVATEK Microelectronics Corp.

Inventor： Yi-Hung Huang ,  Hsiao-En Chang

IPC: G06T7/246 ,  G06T7/223

CPC classification number: G06T7/248 ,  G06T7/223 ,  G06T2207/10016

Abstract: An image processing method for a video processor, for generating an extrapolated frame according to a previous frame and a current frame, includes steps of: projecting a plurality of motion vectors (MVs) to the extrapolated frame subsequent to the current frame; determining whether a block of the extrapolated frame is projected by at least two of the MVs; selecting at least two candidate MVs from the MVs projected to the block when the block is projected by at least two of the MVs; calculating a blended MV which is a mixture of the at least two candidate MVs, and projecting the blended MV to the previous frame; obtaining a reference MV corresponding to position of the previous frame projected by the blended MV; and comparing the reference MV with the at least two candidate MVs, to select a final MV for the block from the at least two candidate MVs.

公开(公告)号：US20240095873A1

公开(公告)日：2024-03-21

申请号：US17947188

申请日：2022-09-19

Applicant: NOVATEK Microelectronics Corp.

Inventor： Teng-Yao Tsai

IPC: G06T1/60 ,  G06T7/194

CPC classification number: G06T1/60 ,  G06T7/194

Abstract: A controller circuit includes a background buffer, M safety information buffers, and an image mixer. The background buffer is used to store a background image. The M safety information buffers is used to store M images of M selected pieces of safety information, M being a positive integer. The image mixer is coupled to the M safety information buffers and the background buffer, and is used to generate an output image according to the background image and the M images of M selected pieces of safety information.

公开(公告)号：US20240054968A1

公开(公告)日：2024-02-15

申请号：US17883634

申请日：2022-08-09

Applicant: Novatek Microelectronics Corp.

Inventor： Fu-Jung Wen ,  Heng-Yao Lin ,  Yen-Tao Liao ,  Jen-Ta Yang ,  Yu-Hung Su

IPC: G09G3/36

CPC classification number: G09G3/3607 ,  G09G2320/0242 ,  G09G2320/0247 ,  G09G2310/061 ,  G09G2340/0435

Abstract: The disclosure provides a display driving device and a display control device and an operation method thereof. The display control device includes a data analyzing circuit and a data compensation circuit. The data analyzing circuit performs arithmetic operation on multiple sub-pixel data output by a target driving channel of a source driver in a current frame to obtain a resultant value corresponding to the target driving channel. The data compensation circuit determines at least one compensation grayscale value corresponding to the resultant value. The compensation grayscale value is to be displayed by the target driving channel in a vertical blank period of a frame period in which the current frame is displayed. The target driving channel of the source driver outputs at least one compensation voltage corresponding to the at least one compensation grayscale value in the vertical blank period of the frame period.

公开(公告)号：US20240046856A1

公开(公告)日：2024-02-08

申请号：US18365247

申请日：2023-08-04

Applicant: Novatek Microelectronics Corp.

Inventor： Yu-Sheng Ma ,  Jhih-Siou Cheng ,  Chun-Fu Lin ,  Jin-Yi Lin

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0275 ,  G09G2310/0267 ,  G09G2310/0251 ,  G09G2330/04

Abstract: A light-emitting diode (LED) panel and a driving device therefore is provided. The driving device includes a source driver and a scan driver. The source driver is coupled to a plurality of data lines disposed in the LED panel. The source driver outputs driving currents to the data lines in any one of a plurality of scan line periods, to drive an LED array of the LED panel. The scan driver is coupled to a plurality of scan lines disposed in the LED panel, wherein the scan driver scans the scan lines during the plurality of scan line periods. In an active period of any one of the scan line periods, the scan driver applies an enable voltage to a current scan line among the scan lines, and the scan driver applies a pre-charge voltage to other scan line among the scan lines.