Optical: systems and elements – Holographic system or element – Using a hologram as an optical element
Patent
1990-06-19
1992-08-25
Miller, Stanley D.
Optical: systems and elements
Holographic system or element
Using a hologram as an optical element
359 58, 359 67, 359 68, G02F 113
Patent
active
051423863
ABSTRACT:
An active matrix liquid crystal display panel is composed of a number of liquid crystal display elements arranged in the form a matrix, each of the liquid crystal display elements being composed of an individual display electrode, a common electrode, and a liquid crystal material sandwiched between the individual display electrode and the common electrode. The individual display electrode of each of the liquid crystal display elements is selectively activated through an associated active element. A liquid crystal display element connected to a defective active element is modified by burning the associated color filter and/or heating the liquid crystal to render the liquid crystal translucent to become a half tone display element, so that the liquid crystal display element connected to the defective active element becomes overshadowed or inconspicuous when the display panel is in operation.
REFERENCES:
patent: 3938140 (1976-02-01), Garcia et al.
patent: 4301450 (1981-11-01), Smoliar
patent: 4368523 (1983-01-01), Kawate
patent: 4630893 (1986-12-01), Credelle et al.
patent: 4666252 (1987-05-01), Yaniv et al.
patent: 4775861 (1988-10-01), Saito
Miller Stanley D.
NEC Corporation
Trice Ron
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