Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1997-10-21
2000-02-22
Shalwala, Bipin
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345175, 349 95, G09G 336, G09G 500
Patent
active
060285818
ABSTRACT:
A method and an appartus for a liquid crystal display (LCD) having an input function are provided. A first transistor is provided in each of the pixel cells of a pixel cell array of a LCD. This first transistor, or display transistor, is a thin film transistor (TFT) switch that is coupled to a transparent electrode that controls the display of pixels on the LCD. Moreover, a second transistor is provided in each of the pixel cells of the pixel cell array. This second transistor is a TFT switch that forms part of a metal-oxide semiconductor (MOS) image sensor array including a photo diode and a micro lens. The second transistor causes an input to be sensed by the LCD. The inputs sensed by the LCD include image inputs and inputs from a pen and a human touch. The first and second transistors are fabricated on the same side of the same substrate.
REFERENCES:
patent: 5430462 (1995-07-01), Katagiri et al.
patent: 5550659 (1996-08-01), Fujieda et al.
patent: 5610629 (1997-03-01), Baur
patent: 5771039 (1998-07-01), Ditzik
Lewis David L.
Shalwala Bipin
Sony Corporation
Sony Electronics Inc.
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