Patent ID: 8305012

Claim:
A light-emitting adjustment method adapted for a light-emitting diode array, wherein the light-emitting diode array comprises n number of light-emitting diode columns, and each of the light-emitting diode columns comprises m number of light-emitting diodes connected in parallel to constitute a light-emitting area, n and m both are positive integers, the light-emitting adjustment method comprising: providing an operating voltage to the m number of light-emitting diodes; sequentially providing operating pulse signals to the m number of light-emitting diodes; sequentially enabling the m number of light-emitting diodes based on the operating voltage and the respective operating pulse signals, and sensing a plurality of overall current values of the m number of light-emitting diodes at different timings; calculating an operating current value of each of the m number of light-emitting diodes based on the overall current values; performing a compensation operation based on the operating current value and thereby obtaining a compensation signal; and adjusting a corresponding one of the operating pulse signals according to the compensation signal.