×

Touch control display panel with touch control dual-gate thin film transistors and touch display device

  • US 9,898,144 B2
  • Filed: 12/10/2013
  • Issued: 02/20/2018
  • Est. Priority Date: 12/21/2012
  • Status: Active Grant
First Claim
Patent Images

1. A touch control display panel, comprising:

  • a TFT (Thin Film Transistor) array substrate including a plurality of touch control dual-gate TFTs, each having a top gate and a bottom gate, wherein the top gate is insulated from both the bottom gate and a touch control gate line, and the bottom gate is electrically connected with the touch control gate line; and

    a color film substrate arranged in opposition of the TFT array substrate, the color film substrate comprising a plurality of electrically conductive posts on the surface facing the TFT array substrate,wherein each of the plurality of electrically conductive posts is arranged in correspondence to one of the plurality of touch control dual-gate TFTs, andwherein during a touch action, one of the plurality of electrically conductive posts is not electrically connected with the top gate of the touch control dual-gate TFT, and channel current of the touch control dual-gate TFT is modulated by a capacitive interaction formed between the electrically conductive post and the top gate of the touch control dual-gate TFT.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×