Invention Grant
- Patent Title: Integrated touch screens
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Application No.: US14838234Application Date: 2015-08-27
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Publication No.: US09727193B2Publication Date: 2017-08-08
- Inventor: Shih Chang Chang , John Z. Zhong
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Morrison & Foerster LLP
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G06F3/044 ; G02F1/1333 ; G02F1/133 ; G02F1/1335 ; G02F1/1343 ; G02F1/1368 ; G06F1/16

Abstract:
Integrated touch screens are provided including drive lines formed of grouped-together circuit elements of a thin film transistor layer and sense lines formed between a color filter layer and a material layer that modifies or generates light. The common electrodes (Vcom) in the TFT layer can be grouped together during a touch sensing operation to form drive lines. Sense lines can be formed on an underside of a color filter glass, and a liquid crystal region can be disposed between the color filter glass and the TFT layer. Placing the sense lines on the underside of the color filter glass, i.e., within the display pixel cell, can provide a benefit of allowing the color filter glass to be thinned after the pixel cells have been assembled, for example.
Public/Granted literature
- US20150370378A1 INTEGRATED TOUCH SCREENS Public/Granted day:2015-12-24
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