Illumination device and liquid crystal display apparatus includi

Details Illumination device and liquid crystal display apparatus includi Illumination device and liquid crystal display apparatus includi

1995-12-13

1998-08-18

Gross, Anita Pellman

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

349 65, G02F 11335

Patent

active

057964505

ABSTRACT:
An illumination device includes a plurality of linear light sources disposed with a prescribed spacing therebetween, a light guide means disposed between or among the linear light sources, and a reflection means disposed behind the light guide means so that light issued from the linear light sources is transmitted through the light guide means and reflected by the reflection means to be emitted in a direction forward from the light guide means. Further, a luminance distribution-adjusting means for reflecting light transmitted through the light guide means is disposed along the light guide means in a disribuption density which varies continuously at a changing rate free from discontinuity so as to adjust the luminance distribution of the light emitted in the direction forward from the light guide means. The illumination device may be suitably used as a backlight behind a liquid crystal panel to provide a liquid crystal display apparatus having improved display qualities.

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