Input display having particular photo sensor, color filter,...

Details Input display having particular photo sensor, color filter,... Input display having particular photo sensor, color filter,...

2007-04-06

2010-11-02

Caley, Michael H (Department: 2871)

Liquid crystal cells, elements and systems

Liquid crystal system

Liquid crystal writing tablet

C349S106000, C349S110000, C349S155000, C349S156000, C345S173000, C345S175000

Reexamination Certificate

active

07825998

ABSTRACT:
Input displays are provided. A representative input display comprises a first substrate, a second substrate, a liquid crystal layer, a photo sensor, a color filter, and a light-shielding element. The liquid crystal layer accommodated in a liquid crystal space is sandwiched between transparent first and second substrates, comprising a first substrate side and a second substrate side. The photo sensor overlies the first substrate side. The color filter disposed in the liquid crystal space, over the photo sensor. The color filter comprises a first opening exposing portions of the photo sensor. The light-shielding element is disposed alongside portions of a periphery of the photo sensor.

REFERENCES:
patent: 6069674 (2000-05-01), Aomori et al.
patent: 6501529 (2002-12-01), Kurihara et al.
patent: 6657699 (2003-12-01), Matsumoto
patent: 6671025 (2003-12-01), Ikeda et al.
patent: 2004/0113877 (2004-06-01), Abileah et al.

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