Combined display panel of liquid crystal display and electrolumi

Details Combined display panel of liquid crystal display and electrolumi Combined display panel of liquid crystal display and electrolumi

1982-07-06

1986-04-08

Corbin, John K.

G02F 113

Patent

active

045808775

ABSTRACT:
A combined display panel comprises a liquid crystal display (LCD) and an electroluminescent display (EL). In addition to the conventional emitting agents, an electroluminescent layer of the EL contains a pigment element for reflecting radiation toward the LCD. Preferably, the LCD is a guest-host type and the EL is a powder type. The material of the pigment element may be selected from a white pigment including barium titanate and titanium oxide. A semi-transparent film such as a parchment paper may be inserted between the LCD and the EL.

REFERENCES:
patent: 3840695 (1974-10-01), Fischer
patent: 3881809 (1975-05-01), Fergason et al.
patent: 4196973 (1980-04-01), Hochstrate
patent: 4208869 (1980-06-01), Hanaoka
patent: 4212048 (1980-07-01), Castleberry

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