Light guiding sheet, manufacturing method thereof, back light us

Details Light guiding sheet, manufacturing method thereof, back light us Light guiding sheet, manufacturing method thereof, back light us

1996-06-24

1998-06-09

Sikes, William L.

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

349 98, 349113, 349117, 349 67, 359488, 362 31, 385901, G02F 11335, G09F 1304

Patent

active

057643229

ABSTRACT:
A liquid crystal display unit using a back light uses a light guiding sheet to transfer to a liquid crystal display panel the light from a light source, and provides a liquid crystal display unit where a display of images is obtained with uniform brightness and high brightness. The light guiding sheet is formed by stacking two or more kinds of transparent amorphous layers different in refractive index at a predetermined angle with respect to a sheet surface. This light guiding sheet is constructed so as to be employed in a back light.

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patent: 5557433 (1996-09-01), Maruyama et al.
patent: 5587816 (1996-12-01), Gunjima et al.

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