Liquid crystal cells – elements and systems – Liquid crystal system – Liquid crystal for recording or imaging on photosensitive...
Reexamination Certificate
2007-09-17
2010-11-16
Nguyen, Hoan C (Department: 2871)
Liquid crystal cells, elements and systems
Liquid crystal system
Liquid crystal for recording or imaging on photosensitive...
C349S024000, C349S025000, C349S027000, C349S028000, C349S106000, C073S001450, C073S001560, C073S514260
Reexamination Certificate
active
07834940
ABSTRACT:
A display device that includes a first substrate having pixel electrodes; a second substrate having a color filter corresponding to the pixel electrodes to display images; a photo switching element disposed at the first substrate; a red or green color filter corresponding to the photo switching element formed at the second substrate to sense an amount of external light; a driving controller configured to output a driving control signal responsive to the amount of external light sensed by the light sensing unit; and a light generation unit configured to provide the display unit with an internal light controlled by the driving control signal. This photo sensor is well suited to human-eye luminosity and uses external light to determine how much backlight is needed.
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Cantor & Colburn LLP
Nguyen Hoan C
Samsung Electronics Co,. Ltd.
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