Displays with Intra-Frame Pause

摘要

A touch screen display may include gate line driver circuitry coupled to a display pixel array. The display may be provided with intra-frame pausing (IFP) capabilities, where touch or other operations may be performed during one or more intra-frame blanking intervals. In one suitable arrangement, a gate driver circuit may include multiple gate line driver segments each of which is activated by a separate gate start pulse. Each gate start pulse may only be released at the end of an IFP interval. In another suitable arrangement, dummy gate driver units may be interposed among active gate driver units. Gate output signals may propagate through the dummy gate driver units during the IFP internal. In another suitable arrangement, each active gate driver unit may be provided with a buffer portion that protects at least some transistor in the gate driver unit from undesired stress.

主权项

1. An electronic device, comprising:
an array of display pixels arranged in rows and columns; and gate driver circuitry coupled to the array of display pixels, wherein operation of the gate driver circuitry is temporarily suspended during an intra-frame blanking interval, wherein the gate driver circuitry includes a gate driver unit having an output on which a corresponding gate line output signal is provided to display pixels arranged along a corresponding row in the array, and wherein the gate driver unit comprises:
a transistor having a source-drain terminal that is coupled to the output of the gate driver unit and having a gate terminal; anda pull-down circuit that is coupled to the gate terminal of the transistor and that is turned on during the entirety of the intra-frame blanking interval.