Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Patent
1990-10-05
1992-11-17
Sikes, William L.
Optical: systems and elements
Holographic system or element
Using a hologram as an optical element
359 72, 359 86, 340784, G02F 113, G02F 1135, G02F 1133, G09G 336
Patent
active
051648490
ABSTRACT:
Display apparatus and method having window shade heating. The display has an active matrix LCD with a plurality of elements and a backlight having a variable brightness. During warm-up of the display, the operating temperature will be below the normal operating temperature. To decrease warm-up time, the LCD elements are darkened and the brightness of the backlight is increased.
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Brown Robert W.
Evans Lansing B.
Allied-Signal Inc.
Massung Howard G.
Sikes William L.
Trice Ron
Walsh Robert A.
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