公开(公告)号：US11733792B2

公开(公告)日：2023-08-22

申请号：US17165902

申请日：2021-02-02

Applicant: Novatek Microelectronics Corp.

Inventor： Yi-Ying Lin ,  Chih-Chang Lai

IPC: G09G5/00 ,  G06F3/041 ,  G06F3/044 ,  G06V40/13 ,  H10K59/40 ,  H10K59/65 ,  H10K59/121

CPC classification number: G06F3/0412 ,  G06F3/0445 ,  G06V40/1306 ,  H10K59/121 ,  H10K59/40 ,  H10K59/65 ,  G06F2203/04111

Abstract: A touch display device includes a plurality of photo sensors, a plurality of display pixels, and a touch sensing layer. The touch sensing layer disposed over the plurality of photo sensors and including a plurality of collimating openings corresponding to the plurality of photo sensors respectively to collimate light from different locations to the plurality of optical sensors.

公开(公告)号：US20230229263A1

公开(公告)日：2023-07-20

申请号：US18123672

申请日：2023-03-20

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Hung-Kai Chen ,  Yu-Huang Chen ,  Feng-Lin Chan

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/04184 ,  G06F3/04164 ,  G06F3/0446 ,  G06F3/0412

Abstract: A touch sensing method, apparatus for a touch panel, and electronic device are provided. The method includes: determining a first number of to-sense touch sensing circuits, and determining a second number of reference touch sensing circuits, each to-sense touch sensing circuit having a corresponding reference touch sensing circuit; causing each to-sense touch sensing circuit to receive a touch excitation signal TX1, and apply TX1 to a corresponding touch sensitive cell and receive a touch sensing signal therefrom, and output a first output signal; causing each reference touch sensing circuit to receive a touch reference signal DC/TX2, and apply DC/TX2 to a corresponding touch sensitive cell and receive a reference sensing signal therefrom, wherein DC/TX2 and TX1 are different signals; and obtaining, according to respective first and second output signals, a capacitance difference of capacitances sensed by each to-sense touch sensing circuit and its corresponding reference touch sensing circuit.

公开(公告)号：US11696483B2

公开(公告)日：2023-07-04

申请号：US17857421

申请日：2022-07-05

Applicant: NOVATEK MICROELECTRONICS CORP.

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

IPC: H10K59/40 ,  G06F3/041

CPC classification number: H10K59/40 ,  G06F3/04164 ,  G06F3/04166

Abstract: An OLED touch and display driver integration chip is provided, including: a group of display driving pads for providing display driving signals to the OLED touch display panel; a group of touch pads for providing touch driving signals to touch electrodes on the OLED touch display panel and/or receiving touch sensing signals from the touch electrodes, and adjacently arranged with the group of display driving pads; and at least one isolation pad arranged between the group of display driving pads and the group of touch pads.

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.

公开(公告)号：US11688327B2

公开(公告)日：2023-06-27

申请号：US17958449

申请日：2022-10-03

Applicant: Novatek Microelectronics Corp.

Inventor： Cheng-Tsu Hsieh

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/0291

Abstract: The disclosure provides a source driving circuit adapted to a display panel. The source driving circuit includes a data channel and a control circuit. The data channel is configured to be coupled to a data line of the display panel and drive the data line of the display panel sequentially according to first display data and second display data. The first display data corresponds to a first scan line of the display panel, and the second display data corresponds to a second scan line of the display panel next to the first scan line of the display panel. The control circuit is coupled to the data channel and is configured to control a time point that the data channel outputs the second display data according to similarity between the first display data and the second display data.

公开(公告)号：US11670262B2

公开(公告)日：2023-06-06

申请号：US17381180

申请日：2021-07-20

Applicant: NOVATEK Microelectronics Corp.

Inventor： Yuan-Po Cheng ,  Hung-Ming Wang

IPC: G09G5/397 ,  G09G3/36

CPC classification number: G09G5/397 ,  G09G3/3648 ,  G09G2340/12

Abstract: A method for generating a plurality of on-screen display (OSD) data is used in a back-end (BE) circuit. The BE circuit is configured to process a plurality of image data to be displayed on a display device. The method includes steps of: receiving the plurality of image data from an application processor (AP); and extracting information of a detecting layer embedded in the plurality of image data, wherein the information of the detecting layer indicates the plurality of OSD data corresponding to at least one user-interface (UI) layer in the plurality of image data.

公开(公告)号：US11669182B2

公开(公告)日：2023-06-06

申请号：US17674817

申请日：2022-02-17

Applicant: NOVATEK Microelectronics Corp.

Inventor： Yi-Ying Lin ,  Chih-Chang Lai

IPC: G06F3/041 ,  G09G3/3225 ,  G06F3/044

CPC classification number: G06F3/0412 ,  G06F3/0443 ,  G06F3/04166 ,  G09G3/3225 ,  G09G2310/0267 ,  G09G2310/0289 ,  G09G2310/08 ,  G09G2354/00 ,  H10K59/40

Abstract: The disclosure provides a method of driving a touch panel which includes a plurality of touch sensing electrodes and a plurality of display pixels. Each of the display pixels includes a light emission element and a driving transistor. Each of the touch sensing electrodes is coupled to the light emission element of at least one of the plurality of display pixels and served as an electrode of the light emission element. The method includes transmitting a first driving signal to at least one of the touch sensing electrodes during a touch sensing period, wherein the touch sensing electrode is coupled to a first power receiving terminal of the corresponding display pixel; transmitting a first power supply voltage to the first power receiving terminal during a display period; and controlling the light emission element of the corresponding display pixel to keep turned on when the first driving signal is transmitted.

公开(公告)号：US20230168282A1

公开(公告)日：2023-06-01

申请号：US17539170

申请日：2021-11-30

Applicant: NOVATEK Microelectronics Corp.

Inventor： Tzu-Wei Lin ,  Hung-Kai Chen ,  Feng-Lin Chan

IPC: G01R1/30 ,  H03G3/30

CPC classification number: G01R1/30 ,  H03G3/30 ,  H03G2201/103

Abstract: An analog front-end (AFE) circuit, configured to be coupled to a sensor having a plurality of sensing units, includes a plurality of sensing circuits and a plurality of multiplexers. Each of the plurality of multiplexers is coupled between one of the plurality of sensing units and at least two of the plurality of sensing circuits.

公开(公告)号：US11631373B1

公开(公告)日：2023-04-18

申请号：US17956820

申请日：2022-09-29

Applicant: NOVATEK Microelectronics Corp.

Inventor： Hung-Hsiang Chen ,  Che-Ching Chang ,  Huang-Chin Tang

IPC: G09G3/3266 ,  G09G3/3291

Abstract: A method of controlling a display panel includes steps of: detecting a plurality of lines of display data to generate a detection result; determining whether to apply a general timing or a compensation timing to each of the lines of display data according to the detection result; allocating a first display line period for a first line of display data determined to be applied with the general timing; outputting at least one control signal to the display panel in the first display line period according to a length of the first display line period; allocating a second display line period for a second line of display data determined to be applied with the compensation timing; and outputting the at least one control signal to the display panel in the second display line period according to a length of the second display line period different from the first display line period.

公开(公告)号：US11630540B2

公开(公告)日：2023-04-18

申请号：US17676856

申请日：2022-02-22

Applicant: Novatek Microelectronics Corp.

Inventor： Yen-Cheng Cheng

IPC: G06F3/044 ,  H04B1/04 ,  G06F3/041

Abstract: The disclosure includes a touch display apparatus having AFE circuit that performs a noise cancellation of an AFE channel by utilizing noise signal received by a neighboring AFE channels. The first AFE channel includes a first integrator having an input terminal coupled to the first terminal receiving a first sensing signal. The second AFE channel includes an input amplifier. The second AFE channel is coupled between the input terminal of the first integrator in the first AFE channel and a second terminal connected to the touch panel. The second AFE channel is configured to generate a reversal input signal based on a second sensing signal received by the second terminal and couple the reversal input signal to a common node between the first integrator and the first terminal.