Patent ID: 9620052
Date: 2017-04-11
CPC Classifications: G09G

Claim:
1. A method of controlling a dimming operation, comprising: determining the brightness of an input image frame based on input image data; determining an input dimming value based on the brightness of the input image frame; deciding to perform the dimming operation when an absolute value of a difference between the input dimming value and a current output dimming value is smaller than a predetermined threshold value, or deciding not to perform the dimming operation when the absolute value of the difference between the input dimming value and the current output dimming value is greater than the predetermined threshold value, wherein a difference in brightness between the input image frame and a current output image frame is relatively smaller when the absolute value of the difference is such that the dimming operation is decided to be performed, and whereas the difference in brightness between the input image frame and the current output image frame is relatively greater when the absolute value of the difference is such that the dimming operation is decided not performed; and outputting as a next output dimming value one of a value generated by adjusting the current output dimming value by a predetermined adjustment value when deciding to perform the dimming operation and the input dimming value when deciding not to perform the dimming operation.