초록 ▼

A display includes a light modulator, a source of light, and a control for controlling the intensity of light from the source supplied to the light modulator thereby to provide images of good contrast for both bright and dark scenes. A method of displaying an image using a passive light modulating d

A display includes a light modulator, a source of light, and a control for controlling the intensity of light from the source supplied to the light modulator thereby to provide images of good contrast for both bright and dark scenes. A method of displaying an image using a passive light modulating display apparatus includes controlling the intensity of light illuminating the display apparatus as a function of a brightness characteristic of the image.

대표청구항 ▼

[ I claim:] [1.] Apparatus for displaying an optical image represented by input signals indicating contrast and brightness information of the optical image, comprisinga passive light modulating display to modulate light in response to the input signals representing contrast characteristics of the op

[ I claim:] [1.] Apparatus for displaying an optical image represented by input signals indicating contrast and brightness information of the optical image, comprisinga passive light modulating display to modulate light in response to the input signals representing contrast characteristics of the optical image to display the optical image,light supply means for supplying a light input to said display for modulation by said display to produce the optical image output, andcontrol means responsive to the input signals for controlling the intensity of light supplied by said light supply means based on such brightness information, said control means comprising means for controlling, as a function of a desired optical output of the passive light modulating display, the intensity of light provided to the passive light modulating display by the light supply means to alter the brightness of the optical image output substantially without affecting the contrast ratio.