Transcription of LCD In-Cell Touch - Walker Mobile
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LCD In-Cell Touch - Walker Mobile
THE term In-Cell Touch generally refersto the implementation of a Touch sensor insidethe cell of a liquid-crystal display (LCD).While the term and technology have beenapplied to Touch sensors integrated intoplasma-display panels, electrophoretic (electronic paper) displays, and OLEDs, thisarticle examines only the application in LCDs. LCD In-Cell Touch currently exists in threeforms, only one of which is physically insidethe LCD cell. The three forms are as follows: In-Cell :The Touch sensor is physicallyinside the LCD cell. The Touch sensorcan take the form of light-sensing ele-ments, micro-switches, or capacitiveelectrodes. On-cell:The Touch sensor is an X-Yarray of capacitive electrodes depositedon the top or bottom surface of the color-filter substrate.
the cell – but this is still usually called “on-cell” because of the type of elec-trodes. (This is a good illustration of the fact that the terminology for in-cell touch
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