Digital gamma correction circuit, gamma correction method, and a

Details Digital gamma correction circuit, gamma correction method, and a Digital gamma correction circuit, gamma correction method, and a

1998-03-12

2000-12-12

Hjerpe, Richard A.

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

348674, 348675, 348676, G09G 336

Patent

active

061605328

ABSTRACT:
Image data to which gamma correction for a CRT has been applied is digitally gamma corrected to image data based on an applied voltage-transmittance characteristic of a liquid crystal display unit.
A digital gamma correction circuit for correcting digital image data to which gamma correction for a CRT has been applied to digital image data suitable for driving display on liquid crystal display units 50R, 50G, 50B comprises a first digital gamma correction circuit 24 and a second digital gamma correction circuit 32. The first digital gamma correction circuit 24 applies a first gamma correction containing a correction for effectively restoring digital image data to which gamma correction for a CRT has been applied to the digital image data before gamma correction for a CRT was applied. The second digital gamma correction circuit 32 applies a second gamma correction based on an applied voltage-transmittance characteristic of the liquid crystal display unit to the digital image data before or after the first gamma correction is applied.

REFERENCES:
patent: 4999702 (1991-03-01), Knierim et al.
patent: 5311297 (1994-05-01), Seki et al.
patent: 5345265 (1994-09-01), Kim
patent: 5729297 (1998-03-01), Kwon
patent: 5751267 (1998-05-01), Sato et al.
patent: 5796384 (1998-08-01), Kim
patent: 5847688 (1998-12-01), Ohi et al.
patent: 5933199 (1999-08-01), Yoon

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