Invention Grant
- Patent Title: Display device and touch sensing method thereof
- Patent Title (中): 显示装置及其触摸感测方法
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Application No.: US13873420Application Date: 2013-04-30
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Publication No.: US09075259B2Publication Date: 2015-07-07
- Inventor: Sung Chul Kim
- Applicant: LG Display Co., Ltd.
- Applicant Address: KR Seoul
- Assignee: LG Display Co., Ltd.
- Current Assignee: LG Display Co., Ltd.
- Current Assignee Address: KR Seoul
- Agency: Morgan, Lewis & Bockius LLP
- Priority: KR10-2012-0142363 20121207
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G02F1/1333 ; G06F3/044 ; G09G3/36

Abstract:
Disclosed is a display device. The display device includes a timing controller and a touch sensing unit. The timing controller temporally divides one frame period and drives a display panel such that a display mode for displaying an image in the display panel and a touch mode for sensing a user's touch are alternately driven. The touch sensing unit detects the user's touch with a DTX compensation value calculated by multiplying a DTX weight value and a maximum DTX amplitude of a touch sensing block which is obtained when a maximum grayscale value is applied to a plurality of pixels corresponding to the touch sensing block, in the touch mode. The DTX weight value is calculated by substituting an average value of grayscale values applied to the plurality of pixels corresponding to the touch sensing block into a normalization curve.
Public/Granted literature
- US20140160062A1 Display Device and Touch Sensing Method Thereof Public/Granted day:2014-06-12
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