Patent Document ID: 9489897
Application ID: 14481520
Patent Status: 1

Claim One:
1. A semiconductor device, comprising: a plurality of pixels each including a drive transistor and an organic light emitting device coupled to the drive transistor, each drive transistor having a gate, wherein the plurality of pixels are arranged in an array; and a controller coupled to each of the plurality of pixels, the controller causing a programming voltage to be applied to the gate of the respective drive transistors to control the brightness of each pixel, during a first time frame, the controller: dividing the array into clusters of pixels, each cluster comprising a plurality of pixels, selecting a first select pixel in each of the clusters, reading data from each of the first select pixels to determine the temperature of the first select pixels, estimating the temperature of the other non-first-select plurality of pixels based on the determined temperature of the first select pixels; during a second time frame, the controller: selecting a different second select pixel in each of the clusters, reading data from each of the second select pixels to determine the temperature of the second select pixels, estimating the temperature of the other non-second-select plurality of pixels based on the determined temperature of the second select pixels.