DRIVING APPARATUS, DRIVING APPARATUS OPERATING METHOD, AND SELF-JUDGEMENT SLEW RATE ENHANCING AMPLIFIER
First Claim
1. A driving apparatus, applied to a liquid crystal display, the driving apparatus comprising:
- a first latch, for storing a second data signal;
a second latch, coupled to the first latch, for storing a first data signal, wherein the first data signal is previous to the second data signal;
an output buffer; and
a slew rate enhancing module, coupled to the first latch, the second latch, and the output buffer respectively, for comparing the first data signal and the second data signal to generate a compared result, and correspondingly output a control signal to the output buffer according to the compared result to control a driving current of the output buffer.
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Abstract
A driving apparatus applied in a liquid crystal display is disclosed. The driving apparatus at least includes a first latch, a second latch, an output buffer, and a slew rate enhancing module. The first latch is used to store a second data signal. The second latch is used to store a first data signal. The first data signal is previous to the second data signal. The slew rate enhancing module is used to compare the first data signal and the second data signal to generate a compared result, and correspondingly output a control signal to the output buffer according to the compared result to control a driving current of the output buffer.
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Citations
14 Claims
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1. A driving apparatus, applied to a liquid crystal display, the driving apparatus comprising:
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a first latch, for storing a second data signal; a second latch, coupled to the first latch, for storing a first data signal, wherein the first data signal is previous to the second data signal; an output buffer; and a slew rate enhancing module, coupled to the first latch, the second latch, and the output buffer respectively, for comparing the first data signal and the second data signal to generate a compared result, and correspondingly output a control signal to the output buffer according to the compared result to control a driving current of the output buffer. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A driving apparatus operating method, for operating a driving apparatus applied to a liquid crystal display, the driving apparatus comprising a first latch, a second latch, and an output buffer, a first data signal stored in the second latch being previous to a second data signal stored in the first latch, the method comprising steps of:
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(a) comparing the first data signal with the second data signal to generate a compared result; and (b) correspondingly output a control signal to the output buffer according to the compared result to dynamically adjust a driving current of the output buffer. - View Dependent Claims (8, 9, 10, 11)
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12. A self-judgment slew rate enhancing amplifier, applied to a driving apparatus of a liquid crystal display, the driving apparatus comprising a first latch, a second latch, and an output buffer, the self-judgment slew rate enhancing amplifier comprising:
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two input terminals, coupled to the first latch and the second latch respectively and receiving the second data signal and the first data signal from the first latch and the second latch respectively; a comparing unit, coupled to the two input terminals, for comparing the first data signal and the second data signal to generate a compared result; and an output terminal, coupled to the comparing unit, for outputting the compared result. - View Dependent Claims (13, 14)
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Specification