G - Physics – 03 – H
Patent
G - Physics
03
H
G03H 1/02 (2006.01) G02B 5/32 (2006.01) G09F 9/35 (2006.01) G02F 1/1335 (2006.01)
Patent
CA 2207016
When illumination light is externally incident on a liquid crystal display, of the incident light, light of a polarized component in one direction passes through a polarizing film to reach a liquid crystal panel. After the light reaching the liquid crystal panel is optically rotated in accordance with the display pattern displayed on the liquid crystal panel, it reaches a polarizing film. The light passing through the polarizing film enters a holographic reflector. The incident light passes through a hologram without being diffracted due to the angle selectivity of the hologram. Light passing through the hologram is regularly reflected by a metal reflective layer arranged on the back surface of the hologram to be incident on the hologram again. Incident light (reflected light) is incident on the hologram at an incident angle having a plus or a minus sign reverse to the previous incident light. The incident light matches the angle selectivity of the hologram, and is transmitted aid diffracted at a specific angle to become diffracted light. The diffracted light passes through the polarizing film, the liquid crystal panel, and the polarizing film again to reach observer's eyes as pattern display light.
Murillo-Mora Luis Manuel
Sato Atsushi
Fetherstonhaugh & Co.
Toppan Printing Co. Ltd.
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