Patent ID: 9041745
Filing Date: 2015-05-26
Classification: G09G,H05B

Abstract:
1. A method of selectively controlling individualized boosting and re-dimming of individual ones of local light sourcing blocks of a backlit display whose image is to be observed by an observer, the method comprising: in response to a supplied image signal, determining whether or not respective local dimming signals, which are to be applied for individually driving respective light sourcing blocks on a per frame basis, satisfy a predetermined set of boosting qualifying conditions; and in response to said determining indicating that the boosting qualifying conditions are satisfied for a respective light sourcing block, beginning boosting at a first time point (T wherein an end of the light adaptation period (T-LAP) of the observer's eye is between the intermediate time point (Ta) and the boosting finishing time point (T wherein each of the respective local dimming signals is decreased from the predetermined reference luminance value to the primary luminance value greater than zero and maintained during a predetermined period.