Patent ID: 9618783
Date: 2017-04-11
CPC Classifications: G02F,G09G

Claim:
1. A display apparatus comprising: a two dimensional array of display elements disposed on a common semiconductor substrate, each display element comprising at least a pixel transistor, a storage capacitor (Cst) and a liquid crystal layer interposed between a pixel electrode and an ITO common plate; each transistor being arranged to control an operation state of the pixel, and having at least a gate, a drain, and a source terminal, the drain being coupled to a first plate of the storage capacitor; a plurality of row select lines distributed to control a first plurality of gate terminals; a plurality of column lines distributed to pass video voltages to the pixel electrode through the pixel transistor; a resistor heating mesh including three or more horizontal common voltage lines and three or more vertical common voltage lines; a heater driver coupled to at least one first and second vertical line node and arranged to supply at least a first and second vertical common line voltage to the at least one first and second vertical line node, respectively, the first vertical common line voltage supplied at the first vertical node and the second vertical common line voltage supplied at the second vertical node producing a vertical common line voltage difference and a vertical common line current flowing through the vertical common voltage line, and thereby heating the display elements coupled thereto.