Color display unit with plasma display panel

Details Color display unit with plasma display panel Color display unit with plasma display panel

1994-02-24

1996-08-13

Saras, Steven

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

345 72, 345150, 348674, G09G 328, H04N 5202

Patent

active

055461018

ABSTRACT:
A color display unit which comprises a plasma display panel and a driving device for driving the plasma display panel so that a picture constituted by input R, G and B signals is displayed on the plasma display panel, wherein the color display unit further comprises a device for analog-to-digital converting the input R, G and B signals and for giving gamma correction to the analog-to-digital converted R, G and B signals, so that the driving device drives the plasma display panel on the basis of the gamma-corrected R, G and B signals, the gamma correction having a characteristic in which a gamma value is made larger than 2.2 in a middle portion of a gamma characteristic curve, and, at the same time, the middle portion of the gamma characteristic curve is shifted to a position having a higher luminance level, and white and black foot portions of the gamma characteristic curve are made smooth.

REFERENCES:
patent: 4020280 (1977-04-01), Kaneko et al.
patent: 5045846 (1991-09-01), Gay et al.
patent: 5122783 (1992-06-01), Bassetti, Jr.
patent: 5187578 (1993-02-01), Kohgami et al.
patent: 5229860 (1993-07-01), Kido et al.
patent: 5298892 (1994-03-01), Shapiro et al.

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