Backlight having a polarization separating element

Electric lamp and discharge devices – With temperature modifier – Having heat conducting path

Reexamination Certificate

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Details

C359S494010, C359S490020, C359S490020

Reexamination Certificate

active

07541723

ABSTRACT:
A display device includes a backlight having a discharge tube and a reflector. A heat conduction member is attached to the reflector in contact with the discharge tube, so that a part of the discharge tube is locally cooled by the heat conduction member. Liquid mercury is collected at a first position in the discharge tube, and the backlight is assembled so that the heat conduction member or other cooling device is located at the first position. Also, the display device includes an optical sheet having a diffusion portion having projections containing scattering material particles.

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