Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2006-09-26
2006-09-26
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S063000
Reexamination Certificate
active
07113153
ABSTRACT:
The present invention solves the problem that the color temperature of initial setting is changed, when a PDP is driven for a long period of time, due to the non-uniform deterioration of red, green and blue fluorescent materials that is caused by the ultraviolet rays generated for discharge.Color temperature correction is performed by setting the numbers of discharge pulses for fluorescent materials in accordance with a discharge pulse number correction curve with respect to the cumulative elapsed driven time of a PDP.
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Kubota Hidenao
Sakamoto Hirofumi
Sudo Masatoshi
Umeda Masahiko
Hitachi , Ltd.
Hjerpe Richard
Nguyen Kevin M.
Townsend and Townsend / and Crew LLP
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