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US 2023/0057575 A1Published application
Display driver having output correction function
AssigneeLx Semicon Co., Ltd.
InventorsByeong Yong KIM, Chang Bae LEE
Life of this patent
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Abstract
Various embodiments disclose a display driver, wherein the display driver may be configured to detect a defective output buffer among output buffers and perform an output correction function for the defective output buffer.
Claims20
A display driver comprising:
- an output buffer configured to output a source signal corresponding to an input signal;
- a dummy buffer configured to output a dummy source signal corresponding to the input signal;
- a detection circuit configured to provide a control signal by detecting a state of the source signal;
- and
- a switching circuit configured to select one of the source signal and the dummy source signal according to the control signal and output a selected signal as an output signal.
2 more elements
A display driver comprising:
- a first output buffer configured to output a first source signal corresponding to a first input signal;
- a second output buffer configured to output a second source signal corresponding to a second input signal;
- a first detection circuit configured to provide a first control signal by detecting a state of the first source signal;
- and
- a first switching circuit configured to select one of the first and second source signals according to the first control signal and output a selected signal as a first output signal corresponding to the first output buffer.
2 more elements
A display driver comprising:
- first output buffers of a first group;
- a number of second output buffers of a second group equal to a number of the first output buffers of the first group;
- a first detection circuit configured to provide a first control signal by detecting states of first source signals of the first output buffers;
- and
- a first switching circuit configured to select one group of the first group and the second group according to the first control signal and output source signals of the selected group as first output signals corresponding to the first output buffers.
2 more elements
Dependencies are inferred from the claim text.