Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2005-08-16
2005-08-16
Tran, Henry N. (Department: 2674)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S204000
Reexamination Certificate
active
06930659
ABSTRACT:
In a light emitting indicator drive circuit which supplies a current to display elements different in display areas, a constant-current is supplied from a P-channel MOS-FET to a display element and a pulse width control circuit controls a on/off ratio. deterioration information from a deterioration detecting circuit and saved segment area information is calculated, and its result decides a time to supply a current to the display elements as a result of the arithmetic operation. With the above operation, a difference in luminance between the display elements and the degradation of luminance caused by the deterioration can be corrected.
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Akase Tokuya
Fujita Susumu
Hoshino Masafumi
Odagiri Hiroshi
Sakumoto Kazumi
Adams & Wilks
Lesperance Jean
Seiko Instruments Inc.
Tran Henry N.
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