Appeal No. 1999-1657
Application No. 08/877,781
The disclosed invention relates to an imaging display
apparatus and comprises a display device such as liquid-
crystal display (LCD) and an optical filter having either one
optical filter surface or two optical filter surfaces. The
optical filter surface uses diffusion or refraction such as a
microprism surface having a flat surface parallel to the LCD
surface and four angular surfaces. These surfaces in
conjunction with a limit view angle of the observer viewing
the imaging display apparatus creates a modified diffused
image. The diffusing system of the present invention
intentionally creates a gap, smaller than the actual pixel
gaps between the diffused pixel image so that focusing is
facilitated while reducing the noticeable gap between the
pixels. The invention is further illustrated by the following
claim.
1. An image display apparatus for displaying an
image to a predetermined observation point remote
from said apparatus having a predetermined
recognizable limit view angle, comprising:
a display device having a plurality of pixels
arranged in a mosaic pattern; and
an optical filter surface disposed on a front
face of said display device, so that said filter
surface is disposed between said display device and
2
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