Image display apparatus and image display methods

Details Image display apparatus and image display methods Image display apparatus and image display methods

2005-08-29

2008-08-26

Shalwala, Bipin (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S048000, C345S055000, C345S063000, C345S077000, C345S084000, C345S204000, C345S690000

Reexamination Certificate

active

07417610

ABSTRACT:
Provided are image display apparatus and image display methods capable of suitably making correction for variation of driving conditions due to an electric resistance of matrix wiring of a display panel by downsized hardware. The apparatus and methods involve a device of calculating voltage drop amounts caused by the resistance of row wires, for input image data, and a device of calculating image data with correction for the voltage drop amounts (corrected image data). An overflow processing circuit is provided so as to prevent overflow of the image data after the correction from an input range of a modulator, and the overflow is prevented by a gain. Since a gradation converter for changing a gradation conversion characteristic by a gain is provided in the stage preceding to the configuration for making the correction for influence of the voltage drop, it becomes feasible to cancel saturation characteristics of phosphors and to display images with high quality thereby.

REFERENCES:
patent: 5734361 (1998-03-01), Suzuki et al.
patent: 6580407 (2003-06-01), Suzuki et al.
patent: 6690344 (2004-02-01), Takeuchi et al.
patent: 2003/0117420 (2003-06-01), Muneki et al.
patent: 8-248920 (1996-09-01), None

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