Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Patent
1990-10-16
1992-06-09
Miller, Stanley D.
Optical: systems and elements
Holographic system or element
Using a hologram as an optical element
359 42, 362367, 362372, G02F 112, F21V 1902
Patent
active
051212323
ABSTRACT:
A displaying device having a liquid crystal display, a light source, and an illuminating member. The displaying device is provided with at least two light receiving portions for respectively receiving external light and the light emitted by the light source. The illuminating surface of the illuminating member is arranged to face the back surface of the liquid crystal display for illuminating the liquid crystal display from behind. A casing for fixedly accommodating the liquid crystal display, the light source, and the light transmitting member therein is provided. The external light and the light emitted by the light source is selectively or simultaneously received by the illuminating member to illuminate the back surface of the liquid crystal display.
REFERENCES:
patent: 3783765 (1974-01-01), Uno et al.
patent: 3920311 (1975-11-01), Tsuda et al.
patent: 4555170 (1985-11-01), Wakui et al.
patent: 4560264 (1985-12-01), Kitazawa et al.
IBM, "Backlighting for liquid crystal display", IBM Technical Disclosure Bulletin, vol. 29, No. 11, Apr. 1987, pp. 4838-4839.
Asahi Kogaku Kogyo Kabushiki Kaisha
Mai Huy K.
Miller Stanley D.
LandOfFree
Displaying device having two separate light receiving portions f does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Displaying device having two separate light receiving portions f, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Displaying device having two separate light receiving portions f will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1809054