Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1996-04-10
1998-08-18
Hjerpe, Richard A.
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345 98, 345100, 345147, G09G 300
Patent
active
057963797
ABSTRACT:
A digital data line driver includes a data input circuit for fetching data in response to an external clock, a reference voltage supply circuit having reference voltages corresponding to a plurality of gray-scale levels, a selector circuit for selecting a specified reference voltage representing the data from among those of the reference power supply circuit, and an output circuit for outputting the reference voltage selected by the selector circuit as display data onto data lines. The data input circuit and output circuit have a data-crossing function for switching data between adjoining channels of the data lines according to an external data switching control signal. Owing to this configuration, deterioration of liquid crystal can be prevented and a better display can be attained with suppressed flickers. At the same time, the picture-frame space can be reduced.
REFERENCES:
patent: 5337070 (1994-08-01), Kitajima et al.
patent: 5363118 (1994-11-01), Okumura
patent: 5414443 (1995-05-01), Kanatani et al.
patent: 5447234 (1995-09-01), Suzuki et al.
patent: 5638091 (1997-06-01), Sarrasin
Enomoto Hiromi
Isogai Hiroyuki
Miwa Hirokazu
Fujitsu Limited
Hjerpe Richard A.
Nguyen Tracy H.
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