Driving circuit of liquid crystal display device
First Claim
1. A driving circuit of a liquid crystal display device, comprising:
- a timing controller for generating a polarity inverting signal and at least one digital signal; and
a low color scale driving circuit for generating at least one analog signal in response to said polarity-inverting signal and said digital signal.
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Abstract
A driving circuit used in a liquid crystal display device is disclosed which includes a timing controller, a source driver and a low color scale driving circuit. The timing controller outputs a polarity inverting signal, a first digital signal, a second digital signal, a third digital signal and a fourth digital signal. The low color scale driving circuit generates a first analog signal, a second analog signal, a third analog signal and a fourth analog signal according to the digital signals outputted from the timing controller for driving a liquid crystal panel. Through the low color scale driving circuit, power consumption of the liquid crystal display device reduces when operating in the condition of low color scale.
29 Citations
19 Claims
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1. A driving circuit of a liquid crystal display device, comprising:
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a timing controller for generating a polarity inverting signal and at least one digital signal; and
a low color scale driving circuit for generating at least one analog signal in response to said polarity-inverting signal and said digital signal. - View Dependent Claims (2)
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3. A driving circuit of a liquid crystal display device comprising a timing controller outputting a polarity-inverting signal and at least one digital signal, a source driver and a low color scale driving circuit, wherein the low color scale driving circuit generating at least one analog signal comprises:
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at least one buffer, receiving the polarity-inverting signal and said digital signal outputted from the timing controller; and
at least one set of transistors, coupled to an output terminal of the buffer for outputting said analog signal. - View Dependent Claims (4)
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5. A driving circuit of a liquid crystal display device including a timing controller, a source driver and a low color scale driving circuit, the timing controller outputting a polarity-inverting signal, a first digital signal, a second digital signal, a third digital signal and a fourth digital signal, the low color scale driving circuit generating a first analog signal, a second analog signal, a third analog signal and a fourth analog signal and comprising:
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a plurality of buffers, receiving the polarity-inverting signal, the first digital signal, the second digital signal, the third digital signal and the fourth digital signal; and
a plurality of sets of transistors which comprise a first set of transistors, a second set of transistors, a third set of transistors, and a forth set of transistors, respectively coupled to an output terminal of the buffers for respectively outputting the first, second, third and fourth analog signal. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification