Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent
1998-06-26
2000-07-11
Lee, John R
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
257 72, 257435, 345 98, H01L 2100, H01L 2700, G09G 320
Patent
active
060876484
ABSTRACT:
In an active matrix display device integrated with peripheral drive circuits, an image sensor is provided on the same substrate as a pixel matrix and peripheral drive circuits. The image sensor is formed on the substrate having pixel electrodes, pixel TFTs connected to the pixel electrodes and CMOS-TFTs for driving the pixel TFTs. The light receiving unit of the image sensor has light receiving elements having a photoelectric conversion layer and light receiving TFTs. These TFTs are produced in the same step. The lower electrode and transparent electrode of the light receiving element are produced by patterning the same film as the light shielding film and the pixel electrodes arranged in the pixel matrix.
REFERENCES:
patent: 5349174 (1994-09-01), Van Berkel et al.
patent: 5589847 (1996-12-01), Lewis
patent: 5650637 (1997-07-01), Kodaira et al.
patent: 5684318 (1997-11-01), Ayres et al.
Sakakura Masayuki
Zhang Hongyong
Lee John R
Peabody LLP Nixon
Robinson Eric J.
Semiconductor Energy Laboratory Co,. Ltd.
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