Image signal correcting method, correcting circuit,...

Details Image signal correcting method, correcting circuit,... Image signal correcting method, correcting circuit,...

2005-01-25

2009-10-13

Mengistu, Amare (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S098000, C345S103000

Reexamination Certificate

active

07602359

ABSTRACT:
To reduce a block ghost in phase expansion driving in which image signals are sampled on a plurality of data lines divided into groups. In a phase expansion driving method, correction data Db is calculated by more largely weighting the average value of a gray-scale level changed from the block in the previous stage of a target block when the target block is selected than the average value of a gray-scale level changed from the block in two previous stages of the target block when the previous block is selected and by adding the average values. Then, the correction data Db is added to image data Vd1dto Vd6dof the pixels belonging to the target block, respectively, to obtain the corrected image data Vd1eto Vd6e. Subsequently, the corrected image data are converted into analog data, and their polarities are inverted to supply to image signal lines of an electro-optical panel.

REFERENCES:
patent: 6329980 (2001-12-01), Uehara et al.
patent: 2002/0005858 (2002-01-01), Aoki
patent: A-09-304752 (1997-11-01), None
patent: A-11-231837 (1999-08-01), None
patent: A-2000-056726 (2000-02-01), None
patent: A-2000-322031 (2000-11-01), None
patent: A-2001-337641 (2001-12-01), None
patent: A-2002-149136 (2002-05-01), None
patent: A-2002-268604 (2002-09-01), None

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