LIQUID CRYSTAL DISPLAY
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United States of America Patent
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Issued Date -
Apr 28, 2011
app pub date -
Jan 4, 2011
filing date -
Sep 9, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A liquid crystal display comprises a liquid crystal module, a backlight module, a driving and detecting module, and plural photo-sensors; the said liquid crystal module contains polarizers, glass plates, liquid crystal, color filters, thin film transistors (TFTs), black matrixes, and various lines; the said backlight module contains light source, light guide, and diffuser; the said driving and detecting module contains date driver, gate driver, photo-sensor driver, and photo-sensing detector; the said plural photo-sensors contains P-N diodes or thin film transistors; each of the said plural photo-sensors is respectively installed at each pixel unit; the plural photo-sensors are used to sense the red and infrared rays which are first emitted from the light source, then pass through the liquid crystal module, and are finally reflected from the touch finger of the user using the optical touch-sensitive liquid crystal display, and are used to provide the sensed signals for the determination of the touch location of the user finger.
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