Display driving chip insensitive to temperature change and operation method thereof
AssigneeLx Semicon Co., Ltd.
InventorYoung Bok KIM
Life of this patent
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Abstract
The present invention relates to a driving chip which enables high-quality image data to be adaptively provided to a display device according to a temperature change, and an operation method thereof, wherein the driving chip may comprise: an impedance matching circuit which minimizes distortion of an input data signal; an equalization circuit which compensates for loss of the input data signal; a clock data recovery circuit which reconstructs an output of the equalization circuit to match a clock signal; a reordering circuit which reorders the reconstructed data for each channel; and a temperature control circuit which generates a plurality of control signals according to a temperature change.
Claims16
A display driver chip insensitive to temperature comprising:
- an impedance matching circuit configured to minimize distortion of an input data signal;
- an equalization circuit configured to compensate for the loss of the input data signal;
- a clock data recovery circuit configured to recover the output of the equalization circuit to match a clock signal;
- a reordering circuit configured to reorder the recovered data by channel;
- and
- a temperature control circuit configured to generate a plurality of control signals in response to temperature change.
A method of operating a display driver chip, comprising:
- applying a power supply voltage or a power-on reset to start the operation of the display driver chip;
- detecting temperature change;
- adjusting at least some of an initial impedance value, an initial gain value, and an initial bias value if there is temperature change as a result of the detection;
- and
- recovering image data.
Dependencies are inferred from the claim text.