Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2011-06-28
2011-06-28
Shalwala, Bipin (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C315S169300
Reexamination Certificate
active
07969392
ABSTRACT:
A matrix type display apparatus includes a pixel circuit unit including electroluminescent elements and pixel circuits driving the electroluminescent elements arranged in a matrix, a plurality of data lines, each corresponding to a column of the pixel circuits for supplying a data current to the pixel circuits, and predetermined current setting circuits for supplying to the data lines a predetermined current for reducing a current to be supplied to the data lines, according to a setting by a reference current unrelated to a displaying, at a time of black displaying of the electroluminescent elements. In addition, switches are arranged corresponding to each of the data lines between the pixel circuits and the predetermined current setting circuits, and a row scanning circuit controls on and off of the switches. The row scanning circuit turns off the switches to disconnect the pixel circuit unit and the predetermined current setting circuits, and sets the predetermined current in the predetermined current setting circuits, and thereafter, the row scanning circuit turns on the switches to connect the pixel circuit unit and the predetermined current setting circuits, and to supply the data lines with the data current and the predetermined current.
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U.S. Appl. No. 11/539,442, filed Oct. 6, 2006, Takanori Yamashita, et al.
Iseki Masami
Kawano Fujio
Yamashita Takanori
Canon Kabushiki Kaisha
Crawley Keith
Fitzpatrick ,Cella, Harper & Scinto
Shalwala Bipin
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