Circuit for driving flat display device

Details Circuit for driving flat display device Circuit for driving flat display device

2007-07-10

2007-07-10

Lao, Lun-Yi (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S067000, C345S211000, C345S204000, C315S169400

Reexamination Certificate

active

09988246

ABSTRACT:
A ramp waveform generation circuit for generating a ramp waveform to be applied to a capacitive load serving as a display element is connected between the ground and a signal line for supplying a high-level voltage generated by a power supply circuit for generating a voltage to be applied to the capacitive load, thereby operating the ramp waveform generation circuit with reference to the ground potential. Hence, without using a plurality of power supply circuits or a signal transmission circuit for converting the reference potential of a control signal for the ramp waveform generation circuit, a stable ramp waveform can be output with a simple circuit arrangement.

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European Search Report, mailed Mar. 1, 2007, and issued in corresponding European Patent Application No. 01309857.9-1228.

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