Optical sensor with photo TFT

Details Optical sensor with photo TFT Optical sensor with photo TFT

2011-05-10

2011-05-10

Shalwala, Bipin (Department: 2629)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Touch panel

C345S207000

Reexamination Certificate

active

07940252

ABSTRACT:
An optical sensor is disclosed. Each sensor pixel circuit of the optical sensor includes a first readout TFT for reading out voltage of a charge node, a second readout TFT for controllably resetting the charge node to a first reset voltage, and a photo TFT for discharging the voltage at the charge node to a second reset voltage in absence of an object(s).

REFERENCES:
patent: 5204661 (1993-04-01), Hack et al.
patent: 5386543 (1995-01-01), Bird
patent: 7741646 (2010-06-01), Kang et al.
patent: 7773139 (2010-08-01), den Boer et al.
patent: 2002/0052192 (2002-05-01), Yamazaki et al.
“Active Matrix LCD with Integrated Optical Touch Screen”, SID 03 Digest, pp. 1494-1497, by Willem den Boer et al.
59.3: Integrated Optical Touch Panel in a 14.1 AMLCD, ADI Abileah et al. SID 04 Digest, 2004.

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