Patent ID: 8421827
Filing Date: 2013-04-16
Classification: G09G

Abstract:
1. A method for maintaining a colour point for a plurality of light emitting elements used to illuminate a display of an electronic device, comprising: comparing a first value corresponding to activation data of each element of the plurality of light emitting elements against a first threshold to identify a compensation element to compensate for aging of the light emitting elements, the activation data corresponding to one of the total time the plurality of light emitting elements have been activated and a function of activation time and an intensity value of the plurality of light emitting elements; comparing the first value against a second threshold if the first value exceeds the first threshold; if the first value is between the first and the second thresholds, then utilizing a first compensation value for the compensation value for aging the each element; adjusting an output to produce the colour on the display by adjusting an intensity for the each element utilizing its compensation value; and for a grey scale image to be generated on the display, at a pixel of the display setting the pixel to a transmissive state if the grey scale image at the pixel includes a colour to be activated.