Liquid crystal display system with variable backlighting for dat

Details Liquid crystal display system with variable backlighting for dat Liquid crystal display system with variable backlighting for dat

1992-09-21

1993-07-06

Chan, Eddie P.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340793, 340709, 359 48, 364DIG2, 3649272, 3649484, G02F 113

Patent

active

052258220

ABSTRACT:
A data processing device is provided with a liquid crystal display incorporating electroluminescent backlighting, in which the electroluminescent backlighting panel is provided with several degrees of luminosity. A selection circuit specifies the degree of luminosity to allow the electroluminescent backlighting panel to generate the selected luminosity level.

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patent: 4655553 (1987-04-01), Klein
"Backlite Lights Handheld Multimeter", Electronic Engineering, vol. 56, No. 689, May 1984, pp. 19, 20.
Patents Abstracts of Japan, vol. 8, No. 79 (P-267) [1516], Apr. 11, 1984; & JP-A-58 221 828 (Sharp K.K.)Dec. 23, 1983 *Abstract*.
Patents Abstracts of Japan, vol. 8, No. 211 (P-303) [1648], Sep. 26, 1984; & JP-A-59 94 740 (Toshiba K.K.) May 31, 1984 *Abstract*.

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