Title :
A 2.6 inch VGA LCD with Optical Input Function using a 1-Transistor Active-Pixel Sensor
Author :
Brown, Chris ; Hadwen, B. ; Kato, Hiromi
Author_Institution :
Sharp Labs. of Eur., Oxford
Abstract :
A 2.6 inch VGA active-matrix LCD has an integrated optical input function. The optical input function may be used for touch input or fingerprint recognition applications and is achieved by integrating image sensor elements within each display pixel. By using a 1-transistor active-pixel sensor, a 30Hz, 300dpi VGA image sensor is integrated within an LCD with an aperture ratio of 40%.
Keywords :
image sensors; liquid crystal displays; touch sensitive screens; 2.6 inch; 30 Hz; VGA LCD; active-pixel sensor; fingerprint recognition; image sensor; integrated optical input; touch input; Active matrix liquid crystal displays; Capacitors; Circuits; Image sensors; Liquid crystal displays; Optical sensors; Photodiodes; Substrates; Thin film transistors; Voltage;
Conference_Titel :
Solid-State Circuits Conference, 2007. ISSCC 2007. Digest of Technical Papers. IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
1-4244-0853-9
Electronic_ISBN :
0193-6530
DOI :
10.1109/ISSCC.2007.373623
