Patent ID: 6784936
Filing Date: 2004-08-31
Classification: H04N

Abstract:
An image-pickup display apparatus comprising:a camera unit including: an image-pickup optical system; an image-pickup device having a light intercepting surface at a position of image formation by said image-pickup optical system; a signal processing circuit for generating a picture signal based on an image-pickup signal output by said image-pickup device; and a controller unit for correcting exposure by controlling said image-pickup device and said signal processing circuit, and a display unit including: a liquid-crystal display unit having a liquid-crystal display panel to display a picture and a back-light to illuminate a rear side of said liquid-crystal display panel; a driver unit producing a drive/control signal fed to said liquid-crystal display unit for driving and controlling a brightness and a contrast of said liquid-crystal display panel and producing a drive/control feedback signal fed to said controller unit; a back-light controller for driving and controlling a brightness of said back-light; and a picture processor for outputting a driving signal to said driver unit based on said picture signal generated by said signal processing circuit employed in said camera unit, wherein upon receiving said feedback drive/control signal output by said driver unit of said display unit by the signal processing circuit of the camera unit as a feedback signal, said controller unit controls said picture processor and said back-light controller employed in said display unit and controls said image-pickup device and said signal processing circuit of the camera to be in an optimum range of the brightness and contrast of said liquid-crystal display unit.