Liquid crystal cells – elements and systems – Liquid crystal system – Liquid crystal writing tablet
Reexamination Certificate
2008-05-13
2008-05-13
Ton, Toan (Department: 2871)
Liquid crystal cells, elements and systems
Liquid crystal system
Liquid crystal writing tablet
C349S096000, C349S112000, C349S117000, C349S137000, C345S173000
Reexamination Certificate
active
07372510
ABSTRACT:
A flexible, non-birefringent cover and a polarizer on the front of a resistive touch panel reduce touch screen image distortion and obscuration resulting from the reflection of ambient light. Reduced reflection of ambient light is also obtained by touch screens of alternative construction incorporating combinations anti-reflection panels and polarizers located behind the touch panel.
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Chernoff Vilhauer & McClung & Stenzel
Duong Tai
Planar Systems Inc.
Ton Toan
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