Patent ID: 9269321
Filing Date: 2016-02-23
CPC Classification: G09G

Claim Text:
1. An electronic display system comprising: a light transmissive panel; a region of display elements on the panel; a plurality of gate lines and a plurality of source lines coupled to the display elements; gate driver circuitry having on-panel transistors that are coupled to the gate lines; a demultiplexer circuit having on-panel transistors that have a plurality of outputs coupled to the source lines as a plurality of groups of pass gates, wherein each pass gate comprises a pair of complimentary TFTs, and a plurality of signal outputs of each group of pass gates are connected to a respective group of the plurality of source lines; a display driver integrated circuit (IC) to receive video data and timing control signals, and having outputs coupled to analog inputs of the demultiplexer circuit, the display driver IC to provide digital timing control signals to control the on-panel transistors of the demultiplexer circuit, and digital timing control signals to control the on-panel transistors of the gate driver circuitry, wherein the control signals for the gate driver circuitry have a large voltage swing and the control signals for the demultiplexer circuit have a small voltage swing, and wherein a signal input of each group of pass gates of the demultiplexer circuit is connected to a respective output pin of the driver IC, and wherein the display driver IC comprises a plurality of buffer circuits each being coupled to drive one and not both of a pair of control electrodes of a respective pass gate in the plurality of groups of pass gates of the demultiplexer circuit; and a plurality of small voltage swing on-panel inverters whose constituent active devices are on-panel TFTs, wherein an output of each of the plurality of buffer circuits in the display driver IC is coupled to a respective one of the on-panel inverters, and an output of the on-panel inverter is coupled to another one of the pair of control electrodes of the respective pass gate.