Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2006-02-28
2009-12-01
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S077000, C345S082000, C345S083000, C345S084000
Reexamination Certificate
active
07626565
ABSTRACT:
To provide a current output type semiconductor circuit and a display device which are capable of realizing a reduction in cost by reducing the number of output stages and reducing a chip area. A display device includes three reference current generating units which generate reference currents corresponding to three display colors and outputs the reference currents, a selector which outputs an optimum reference current among the outputs of the three reference current generating units according to a display color of display data in response to a changing display color switching signal, a current output unit which outputs a current corresponding to a value of the display data with respect to a current per one gradation determined by the reference currents, and a selector for distributing the output of the current output unit to respective source signal lines corresponding to the display color.
REFERENCES:
patent: 7126568 (2006-10-01), LeChevalier
patent: 7345660 (2008-03-01), Mizukoshi et al.
patent: 7400098 (2008-07-01), Ng et al.
U.S. Appl. No. 12/361,069, filed Jan. 28, 2009, Takahara, et al.
Hjerpe Richard
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Shapiro Leonid
Toshiba Matsushita Display Technology Co., Ltd.
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