Flat-panel display with luminance feedback
First Claim
Patent Images
1. A light emitting image display, comprising:
- a) a substrate;
b) an array of addressable light emitters formed on the substrate, the light emitters comprising a light emissive layer and electrode layers on either side of the light emissive layer which are deposited on the substrate;
c) a drive circuit for driving the light emitters to emit light in an imagewise pattern;
d) one or more photo-sensors formed on the substrate, the photo-sensor comprising a photo-sensor layer and electrode layers on either side of the photo-sensor layer which are deposited on the substrate, and the photo-sensor layer being directly optically coupled to the emissive layer of the light emitters in the array to detect light emitted by the light emitters and to generate a feedback signal in response thereto; and
e) a feedback control circuit responsive to the feedback signal for controlling the drive circuit to control the desired light output for each brightness level of the display.
1 Assignment
0 Petitions
Accused Products
Abstract
An image display, includes a substrate; a light emitter formed on the substrate; and a photo-sensor formed on the substrate and optically coupled directly to the light emitter.
224 Citations
46 Claims
-
1. A light emitting image display, comprising:
-
a) a substrate; b) an array of addressable light emitters formed on the substrate, the light emitters comprising a light emissive layer and electrode layers on either side of the light emissive layer which are deposited on the substrate; c) a drive circuit for driving the light emitters to emit light in an imagewise pattern; d) one or more photo-sensors formed on the substrate, the photo-sensor comprising a photo-sensor layer and electrode layers on either side of the photo-sensor layer which are deposited on the substrate, and the photo-sensor layer being directly optically coupled to the emissive layer of the light emitters in the array to detect light emitted by the light emitters and to generate a feedback signal in response thereto; and e) a feedback control circuit responsive to the feedback signal for controlling the drive circuit to control the desired light output for each brightness level of the display. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
-
Specification