Patent ID: 8456495

Claim:
A method of controlling power of a light emitting device for image display irradiating light from a plurality of divided regions, the light emitting device including a plurality of light emitting units having at least one light emitting element, the method comprising: a light emission brightness data determination step for determining light emission brightness data of each light emitting element based on image data for image display; and a light emitting element control step for executing a plurality of light emitting element control processes relating to each light emitting element based on the light emission brightness data, wherein the light emitting element control step includes: a power computation process step for computing power in each region and total light emission power based on light emission brightness data of each light emitting element in each region; and a power limit process step for limiting the power in each region if the computed total light emission power exceeds predetermined allowable power so that the total light emission power is equal to the predetermined allowable power or less.