Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1997-07-01
2000-03-07
Hjerpe, Richard A.
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345 63, 345 68, G09G 328
Patent
active
060346558
ABSTRACT:
Method for controlling a white balance in a plasma display panel device, is disclosed, including the steps of (1) displaying one frame of gradation on an entire screen of the plasma display panel device, (2) discharging and erasing all cells in the plasma display panel device, (3) addressing all R cells, G cells, or B cells of the entire cells at a time; and (4) providing additional sustain pulses having numbers different from one another to the R cells, G cells and B cells addressed in the step (3) to reduce luminance differences between the R cells, G cells and B cells, thereby providing additional sustain pulses with numbers different from one another in the order of R cell>G cell>B cell to R cells, G cells, B cells after display of one frame of gradation on an entire screen, resulting in significant reduction of luminance differences between the R cells, G cells, B cells caused by provision of identical gradation data thereto, whereby facilitating implementation of a stable white balance and exact colors and has an advantage of improving a brightness of the entire screen.
REFERENCES:
patent: 5708453 (1998-01-01), Tsuchida et al.
patent: 5724054 (1998-03-01), Shinoda
Blackman Anthony J.
Hjerpe Richard A.
LG Electronics Inc.
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