Radiant energy – Photocells; circuits and apparatus – Photocell controls its own optical systems
Reexamination Certificate
2008-01-30
2009-11-17
Lee, John R (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Photocell controls its own optical systems
C250S2140AL, C349S061000, C345S102000, C345S207000, C345S690000, C345S063000
Reexamination Certificate
active
07619194
ABSTRACT:
An electro-optical device includes a panel formed so that an electro-optical material is held between a first substrate and a second substrate, a lighting unit that irradiates light to a surface of the first substrate or the second substrate of the panel, a light detecting portion that detects an illuminance of ambient light, and a light control portion that controls the lighting unit on the basis of result detected by the light detecting portion. The light detecting portion is provided on the first substrate or on the second substrate and includes a first optical sensor, a second optical sensor, a first electrode, a second electrode, and an electric potential applying portion. The first optical sensor is irradiated with ambient light. The second optical sensor is shielded against irradiation of ambient light. The electrodes are configured to overlap the respective optical sensors through an insulating layer.
REFERENCES:
patent: 6737629 (2004-05-01), Nixon et al.
patent: 6809718 (2004-10-01), Wei et al.
patent: 7064733 (2006-06-01), Cok et al.
patent: 7218048 (2007-05-01), Choi et al.
patent: 2003/0231161 (2003-12-01), Yamaguchi
patent: 2005/0275616 (2005-12-01), Park et al.
patent: 2006/0164408 (2006-07-01), Nishikawa et al.
patent: 2006/0202947 (2006-09-01), Lee
patent: 2006/0274027 (2006-12-01), Yamaguchi
patent: 2007/0070056 (2007-03-01), Sato et al.
patent: 2008/0173796 (2008-07-01), Lum et al.
patent: 2008/0284716 (2008-11-01), Edwards et al.
patent: 2009/0066897 (2009-03-01), Katoh et al.
patent: 2009/0122039 (2009-05-01), Katoh et al.
patent: A-1-143257 (1989-06-01), None
patent: A-4-254820 (1992-09-01), None
patent: A-11-98394 (1999-04-01), None
patent: A-2004-078160 (2004-03-01), None
patent: A-2005-352490 (2005-12-01), None
patent: 2006-118965 (2006-05-01), None
patent: WO 2006/117956 (2006-11-01), None
patent: WO 2006/118044 (2006-11-01), None
Epson Imaging Devices Corporation
Lee John R
Oliff & Berridg,e PLC
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