Liquid crystal display

Details Liquid crystal display Liquid crystal display

G - Physics

02

F

G02F 1/1335 (2006.01) F21V 5/02 (2006.01) F21V 8/00 (2006.01) G02F 1/13 (2006.01) G02F 1/13357 (2006.01) G02F 1/1333 (2006.01)

Patent

CA 2097109

A light converging unit using a prism lens adapted for use in a back light device and which enables the device to be manufactured in a thinner size and at a lower cost. A liquid crystal display comprising; a display means for displaying characters and graphics, said means including a display portion comprising at least a liquid crystal panel; an illuminating means for illuminating the display portion of the liquid crystal panel; a converging means for converging light rays from the illuminating means at the display portion of the liquid crystal panel. A prism lens comprises a plurality of prism portions provided with a flat portion formed thereon. Said flat portion may be formed at the bottom between two neighboring prism portions. A combination of top and bottom flat portions formed on and between the prism portions are also possible.

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