公开(公告)号：US20240295935A1

公开(公告)日：2024-09-05

申请号：US18540790

申请日：2023-12-14

Applicant: Novatek Microelectronics Corp.

Inventor： Chih-Yang Ke ,  Wei-Ren Chang

IPC: G06F3/041 ,  G06F3/0354 ,  G06F3/038 ,  G06F3/044 ,  H04W72/23

CPC classification number: G06F3/04162 ,  G06F3/03545 ,  G06F3/0383 ,  G06F3/0441 ,  G06F3/0442 ,  H04W72/23

Abstract: A stylus, a touch device, and a touch processing circuit are provided. The stylus includes a holding portion and a first transmission electrode. The first transmission electrode is disposed on the holding portion. The touch device includes a touch panel and a touch processing circuit. The touch processing circuit is coupled to the touch panel. The first transmission electrode transmits a first downlink signal to the touch device. The first downlink signal is used to determine a touch event that the stylus is laid on the touch panel. The touch processing circuit receives at least one first downlink signal from the holding portion of the stylus through the touch panel. The touch processing circuit is configured to determine the touch event that the stylus is laid on the touch panel based on the first downlink signal.

公开(公告)号：US20240295938A1

公开(公告)日：2024-09-05

申请号：US18178518

申请日：2023-03-05

Applicant: Novatek Microelectronics Corp.

Inventor： Chih-Yang Ke ,  Chin-Lin Lee

IPC: G06F3/041 ,  G06F3/0354 ,  G06F3/038

CPC classification number: G06F3/04186 ,  G06F3/03545 ,  G06F3/0383 ,  G06F2203/04106

Abstract: A touch system, a stylus, a touch device, a touch processing circuit, and an operation method thereof are provided. The stylus includes a holding portion and a first transmission electrode. The first transmission electrode is disposed on the holding portion. When the hand of the user holds the holding portion of the stylus, the first transmission electrode transmits a suppressing report signal. The touch device includes a touch panel to detect a touch event. The touch device detects the suppressing report signal of the first transmission electrode through the touch panel to determine a false touch area of the hand on the touch panel. The touch device ignores the touch event of the false touch area when the hand touches the false touch area by mistake.

公开(公告)号：US12105907B2

公开(公告)日：2024-10-01

申请号：US17858945

申请日：2022-07-06

Applicant: Novatek Microelectronics Corp.

Inventor： Yu-Ying Tang ,  Wei-Ren Chang ,  Chih-Yang Ke ,  Chih-Chang Lai

IPC: G06F3/041 ,  G06F3/0354 ,  G09G3/20

CPC classification number: G06F3/04162 ,  G06F3/03545 ,  G06F3/0412 ,  G09G3/20 ,  G09G2300/0408 ,  G09G2310/0267 ,  G09G2354/00

Abstract: A display panel and an operation method of the display panel are provided. The display panel includes a display area and a frame area. The display area is configured to display an image. During a touch sensing period, the display area and the frame area emit an uplink signal to perform an active stylus touch detection operation.

公开(公告)号：US20230152918A1

公开(公告)日：2023-05-18

申请号：US17858945

申请日：2022-07-06

Applicant: Novatek Microelectronics Corp.

Inventor： Yu-Ying Tang ,  Wei-Ren Chang ,  Chih-Yang Ke ,  Chih-Chang Lai

IPC: G06F3/041 ,  G06F3/0354 ,  G09G3/20

CPC classification number: G06F3/04162 ,  G06F3/03545 ,  G06F3/0412 ,  G09G3/20 ,  G09G2310/0267 ,  G09G2300/0408 ,  G09G2354/00

Abstract: A display panel and an operation method of the display panel are provided. The display panel includes a display area and a frame area. The display area is configured to display an image. During a touch sensing period, the display area and the frame area emit an uplink signal to perform an active stylus touch detection operation.