Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2007-05-01
2007-05-01
Lee, Wilson (Department: 2163)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C315S169300
Reexamination Certificate
active
10992663
ABSTRACT:
A power control apparatus for a display device that measures a power supply voltage and a cathode voltage and adjusts electrical characteristics that deviate from predetermined conditions to satisfy the conditions, thus preventing damage of a panel due to an excessive current and deterioration. The power control apparatus comprises a first power supply line for transmitting a first level of power supply voltage to a pixel; a second power supply line for transmitting a second level of power supply voltage to the pixel; a DC power generator for generating the first level of power supply voltage and the second level of power supply voltage; and an output detecting unit connected to an output of the DC power generator and for measuring a driving current of a display device. The output detecting unit includes an output detecting circuit for detecting the driving current of the display device, and an output control unit for comparing the detection signal of the output detecting circuit and a designated level of power supply voltage to adjust the detected output power to the designated level.
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Kwak Won-Kyu
Park Sung-Chon
H.C. Park & Associates PLC
Lee Wilson
Samsung SDI & Co., Ltd.
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