Patent ID: 7274346
Filing Date: 2007-09-25
Classification: G01J,G09G,H04N

Abstract:
1. A detection system for the detection of brightness and uniformity variations in a pre-defined group of light-emitting elements in an OLED display, comprising: a) a two-dimensional OLED display having a pre-defined group of light-emitting elements distributed across the display comprising up to N b) a two-dimensional imager with a plurality of light-sensitive sensor elements sensitive to the light emitted by the light-emitting elements, wherein the number of light-sensitive sensor elements in a first dimension of the imager is greater than 2(N c) optical elements arranged so that the imager is exposed to all of the light-emitting elements in the predefined group of light-emitting elements of the OLED display simultaneously and at a magnification such that each light-sensitive sensor element records the light output from no more than one light-emitting element; and d) a controller to control the OLED display and cause each of the light-emitting elements of the predefined group of light-emitting elements to illuminate and the imager to acquire images of the illuminated light-emitting elements in the OLED display.