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US 11,887,516 B2Granted
Display driver having output correction function
AssigneeLx Semicon Co., Ltd.
InventorsByeong Yong Kim, Chang Bae Lee
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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.
Claims6
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,
- wherein the detection circuit is configured to select the source signal in response to a check signal that remains enabled during a preset test frame period and output the control signal when the check signal is disabled due to expiration of the preset test frame period.
3 more elements
Dependencies are inferred from the claim text.