公开(公告)号：US11182018B2

公开(公告)日：2021-11-23

申请号：US16286686

申请日：2019-02-27

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Po-Ying Chen ,  Wen-Yi Hsieh

IPC: G06F3/041 ,  G09G3/36

Abstract: The present invention discloses a touch display driving device and a driving method in the same. The touch display driving device is used for driving a touch display panel, the touch display panel comprising a plurality of common electrode blocks and a plurality of display regions. The touch display driving device comprising a multiplexing circuit which is configured to: during a display period, couple one or more common electrode blocks corresponding to one of the display regions which is to be displayed during the display period to a first voltage; and during the display period, couple one or more of the common electrode blocks corresponding to the display regions which are not to be displayed during the display period to a second voltage.

公开(公告)号：US12141392B2

公开(公告)日：2024-11-12

申请号：US17531848

申请日：2021-11-22

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Keko-Chun Liang ,  Jhih-Siou Cheng ,  Hsu-Chih Wei ,  Jui-Chan Chang ,  Ju-Lin Huang ,  Po-Ying Chen ,  Wen-Yi Hsieh

IPC: G06F3/041 ,  G09G3/36

Abstract: The present invention discloses a display panel and a display device. The display panel comprises a plurality of common electrode blocks and a plurality of display regions. During a display period, one or more common electrode blocks corresponding to one of the display regions which is to be displayed during the display period are coupled to a common voltage; and during the display period, one or more of the common electrode blocks corresponding to the display regions which are not to be displayed during the display period are kept in a floating state.