公开(公告)号：US20140111467A1

公开(公告)日：2014-04-24

申请号：US13912183

申请日：2013-06-06

Applicant: AU Optronics Corp.

Inventor： Yu-Ta Chen ,  Chao-Chen Wang ,  Chien-Ming Ko ,  Iru Wang ,  Tung-Tsun Lin ,  Yuan Mao

IPC: G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F3/0416

Abstract: An in-cell touch display panel includes a plurality of first sensing electrodes, a pixel matrix, a plurality of second sensing electrodes, a touch control unit, and a display driving unit. The plurality of first sensing electrodes are for generating touch sensing signals according to touch scanning signals. The plurality of second sensing electrodes are utilized as common voltage electrodes of pixels of the pixel matrix. Wherein when the display driving unit drives pixels of a first block of the pixel matrix to display image, the display driving unit outputs a common voltage to the pixels of the first block via the second sensing electrodes corresponding to the first block, and outputs the touch scanning signals via the second sensing electrodes corresponding to a second block of the pixel matrix; and wherein the display driving unit switches a frequency of the touch scanning signals according to magnitude of a noise.

Abstract translation: 单元内触摸显示面板包括多个第一感测电极，像素矩阵，多个第二感测电极，触摸控制单元和显示驱动单元。 多个第一感测电极用于根据触摸扫描信号产生触摸感测信号。 多个第二感测电极用作像素矩阵的像素的公共电压电极。 其中，当显示驱动单元驱动像素矩阵的第一块的像素以显示图像时，显示驱动单元经由与第一块相对应的第二感测电极向第一块的像素输出公共电压，并且输出触摸 经由与所述像素矩阵的第二块相对应的所述第二感测电极扫描信号; 并且其中所述显示驱动单元根据噪声的大小切换所述触摸扫描信号的频率。