Patent ID: 6650373
Filing Date: 2003-11-18
Classification: G09G,H04N

Abstract:
A display apparatus having a characteristic that power consumption therein varies in accordance with variation of brightness of a displayed image and arranged in such a manner that a video signal is temporarily stored in a memory and the video signal is read out of the memory to be displayed thereon, said display apparatus comprising:a current limiter operatively connected to an input part that receives the video signal, said current limiter being arranged to receive the video signal before it is stored in the memory, said current limiter being arranged to obtain a quantity of a limited electric current in a period of time between when the video signal is temporarily stored in the memory and when the video signal is read out of the memory, and said current limiter being arranged to obtain said quantity of a limited electric current using a reference value and a value that is derived from brightness levels of the video signal, wherein said current limiter is further arranged to obtain a proportionality term, arranged to obtain an integration term, and arranged to obtain the quantity of a limited electric current using said proportionality term and said integration term.