UNDER-RUN COMPENSATION CIRCUIT, METHOD THEREOF, AND APPARATUSES HAVING THE SAME

摘要

PURPOSE: An under-run compensation circuit, a method thereof, and apparatuses including the same are provided to prevent image quality degradation of a display apparatus by compensating an under-run state by detecting the under-run state of an input/output buffer. CONSTITUTION: An under-run compensation circuit(320) outputs a clock signal and dummy data when an under-run detection signal is received. The under-run compensation circuit bypasses the clock signal and data when the under-run detection signal is not received. A count comparison unit(330) creates a comparison signal according a comparison result by comparing a standard count value and a count value from counting underflow in response to the under-run detection signal. A clock masking circuit(350) performs a clock masking process according to the comparison signal. A data selection circuit outputs data or dummy data according to the comparison signal.