公开(公告)号：US20180039359A1

公开(公告)日：2018-02-08

申请号：US14914660

申请日：2016-02-25

Applicant: Wuhan China Star Optoelectronics Technology Co. Ltd.

Inventor： Chunpeng GUO ,  Chun-hung Huang ,  Ying-chi WANG

IPC: G06F3/041 ,  G09G3/36

CPC classification number: G06F3/0412 ,  G06F3/041 ,  G06F3/0416 ,  G06F3/044 ,  G09G3/3648 ,  G09G3/3688 ,  G09G2310/06 ,  G09G2320/0252 ,  G09G2330/021 ,  G09G2354/00

Abstract: A driving method for a liquid crystal panel is disclosed. Wherein, the driving method includes: (A) at a moment of switching from a normal display time stage to a touch scanning time stage in a current frame, applying a first over driving voltage to a common electrode of each pixel of a liquid crystal panel; and (B) at a moment of switching from the touch scanning time stage in the current frame to a normal display time stage of a next frame, applying a second over driving voltage to the common electrode of each pixel. According to the method described above a time that the common electrode reaches a present level voltage is shorten in order to effectively improve the poor display and touch problem caused by signal abnormality at moments of switching between a normal display and a touch scanning in an in-cell touch panel.

公开(公告)号：US20180113364A1

公开(公告)日：2018-04-26

申请号：US15117651

申请日：2016-05-24

Applicant: Wuhan China Star Optoelectronics Technology Co., Ltd.

Inventor： Gonghua ZOU ,  Ying-chi WANG ,  Chun-hung HUANG

IPC: G02F1/1362 ,  G06F3/041 ,  G02F1/1333 ,  G06F3/044 ,  H01L27/12

CPC classification number: G02F1/136286 ,  G02F1/13338 ,  G06F3/041 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04111 ,  H01L27/124

Abstract: An in-cell touch liquid crystal panel and an array substrate thereof, and the array substrate includes a glass substrate and three metal layers, and a common electrode layer that are sequentially formed on the glass substrate and are insulated with each other. A plurality of scan lines are disposed in the second metal layer, a plurality of connection wirings are disposed in the third metal layer, and a common electrode layer is divided into a plurality of touch control inductive electrodes that are electrically connected to a touch control detection chip through the connection wirings. A plurality of metal lines are disposed in the second metal layer, the metal lines and the scan lines are insulated with each other, and two ends of each metal line are electrically connected to the connection wiring.

公开(公告)号：US20170242521A1

公开(公告)日：2017-08-24

申请号：US15161348

申请日：2016-05-23

Applicant: Wuhan China Star Optoelectronics Technology Co., Ltd.

Inventor： Lulu XIE ,  Ying-chi WANG ,  Chun-hung HUANG

IPC: G06F3/041 ,  G06F3/044

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

Abstract: A touch panel having a plurality of electrode units, a touch display control circuit configured to apply voltage signals on the electrode units during a display driving period of the touch panel, and apply touch driving voltage signals on the electrode units during a touch driving period of the touch panel, wherein, a frame period including a plurality of unit frames of the touch panel, when the touch panel displays images of respective unit frames, the touch display control circuit applies touch driving voltage signals in different time on the electrode units during the touch driving period. A driving method of the touch panel is also disclosed. When the touch panel displays the images of respective unit frames, a position of a brightness anomaly on the image of each unit frame is not fixed by changing the time of applying the touch driving voltage signals applied on each electrode unit.