DISPLAY SYSTEM, DRIVER AND METHOD THEREOF FOR VOLTAGE OFFSET ADJUSTMENT
First Claim
1. A driver of a display panel, the driver comprising:
- an operational amplifier, outputting an output signal to drive the display panel according to a bias voltage; and
a bias control circuit, coupled to the operational amplifier and outputting the bias voltage to the operational amplifier, wherein the bias control circuit generates the bias voltage according to a random bit stream.
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Accused Products
Abstract
A driver of a display panel comprises an operational amplifier and a bias control circuit. The operational amplifier outputs an output signal to drive the display panel according to a bias voltage. The bias control circuit is coupled to the operational amplifier and is configured to output the bias voltage to the operational amplifier, wherein the bias control circuit generates the bias voltage according to a random bit stream. The bias voltage is changed according to signal levels of the random bit stream, and a systematic voltage offset of the operational amplifier is adjusted according to the bias voltage. A method adapted to a driver of a display panel, and a display system are also introduced.
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Citations
18 Claims
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1. A driver of a display panel, the driver comprising:
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an operational amplifier, outputting an output signal to drive the display panel according to a bias voltage; and a bias control circuit, coupled to the operational amplifier and outputting the bias voltage to the operational amplifier, wherein the bias control circuit generates the bias voltage according to a random bit stream. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method adapted to a driver of a display panel, the method comprising:
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providing a random bit stream; generating a bias voltage according to the random bit stream, wherein the bias voltage is configured to bias an operational amplifier; and outputting an output signal according to the bias voltage, wherein the output signal is configured to drive the display panel. - View Dependent Claims (9, 10, 11)
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12. A display system, comprising:
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a display panel, configured to display image data according to an output signal; and a driver, coupled the display panel, wherein the driver comprises; an operational amplifier, outputting the output signal to drive the display panel according to a bias voltage; and a bias control circuit, coupled to the operational amplifier and outputting the bias voltage to the operational amplifier, wherein the bias control circuit generates the bias voltage according to a random bit stream. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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Specification