Light switch having plural shutters

Details Light switch having plural shutters Light switch having plural shutters

2007-08-24

2010-06-22

Healy, Brian M (Department: 2883)

Liquid crystal cells, elements and systems

Particular structure

Having significant detail of cell structure only

C349S061000, C349S084000, C359S227000

Reexamination Certificate

active

07742125

ABSTRACT:
A display includes a light switch overlying a backlight and having at least two light shutters which do not, by themselves, convey information by the shape thereof. The lit area of the backlight is equal to or greater than the sum of the areas of the shutters within the area. The display can also include a graphics layer overlying the light switch. The information content of the display is changed by changing the graphics layer.

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patent: 2009/0051853 (2009-02-01), Thomas et al.
patent: WO 2005 121878 (2005-12-01), None
U.S. Appl. No. 06/254,894, filed Nov. 2006, Jung et al.

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