Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1980-05-29
1984-01-31
Curtis, Marshall M.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340719, 340798, G09G 336
Patent
active
044293054
ABSTRACT:
A matrix liquid crystal display circuit includes a selecting transistor connected to the picture element and a capacitor for each picture element of the matrix. The other picture element and capacitor terminals connect to common electrodes and the transistor gates in each row connect to a common electrode. In each column a common source line connects to the sources of the transistors and a signal sampling circuit periodically applies an image signal to the source line of each column in sequence. No amplification is used between the sampling circuit and the transistor sources. Metallic leads serve as the source lines, but other circuits and components are integrated on a common substrate.
REFERENCES:
patent: 3862360 (1975-01-01), Dill et al.
patent: 4112333 (1978-09-01), Asars et al.
patent: 4239346 (1980-12-01), Lloyd
Hosokawa Minoru
Oguchi Koichi
Yazawa Satoru
Curtis Marshall M.
Kabushiki Kaisha Suwa Seikosha
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