Display device and method for providing optical feedback

Details Display device and method for providing optical feedback Display device and method for providing optical feedback

2005-12-13

2009-06-23

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S087000, C345S088000, C345S082000, C345S055000

Reexamination Certificate

active

07551158

ABSTRACT:
A display device for providing optical feedback includes light sources, each for emitting light in a different respective wavelength range, electro-optical elements defining pixels of an image, each for selectively passing light in one of the wavelength ranges and a sensor for measuring the intensity of light output from a portion of the electro-optical elements. To provide the optical feedback, a controller activates one of the light sources, alters those electro-optical elements within the portion of the electro-optical elements that are arranged to pass light in the wavelength range of a select one of the light source and reads out the measured intensity from the sensor. Based on the measured light intensity, the controller adjusts an illumination parameter associated with the select light source.

REFERENCES:
patent: 7242384 (2007-07-01), Yamamoto et al.
patent: 7364336 (2008-04-01), Mori et al.
patent: 2003/0011832 (2003-01-01), Chang

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