Patent ID: 7633550
Filing Date: 2009-12-15
Classification: G09G,H04N

Abstract:
1. A method for using a flicker detection component to detect and correct flicker in a display screen, comprising the steps of: operating a light source associated with the display screen being tested; illuminating the display screen during testing with the light source; taking a plurality of coarse readings over an entire range of a screen adjustment control by sensing light received from the display screen displaying a test pattern; outputting a signal representing an amount of screen flicker detected for each coarse reading, each coarse reading being associated with a particular level at which the screen adjustment control has been set; determining the coarse reading associated with the signal indicating a least amount of flicker; performing a plurality of fine readings in a vicinity of the coarse reading determined to indicate the least amount of flicker, each fine reading being associated with a particular level at which the screen adjustment control has been set wherein a distance between each fine reading is smaller than the distance between each coarse reading; determining the fine reading associated with the signal indicating the least amount of flicker from the plurality of fine readings; and setting the screen adjustment control to the level of the fine reading associated with the signal indicating the least amount of flicker.