Displays

Details Displays Displays

G - Physics

09

F

G09F 9/35 (2006.01) G02F 1/1335 (2006.01) G09F 9/305 (2006.01)

Patent

CA 2114115

2114115 9325992 PCTABS00028 A switchable pixel of part of a display comprises a light source (1-4, 20) positioned behind a liquid crystal cell (8, 25). A reflective surface (8e, 29) is provided behind the cell (1-4, 20), a hole being present in the surface (8e, 29) which is aligned with the light beam (7) so that when the light source is emitting a beam of light, the cell can be switched to a relatively less transmissive state to allow ambient light to be reflected from the surface and enhance the contrast.

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