TOUCH DISPLAY SUBSTRATE AND TOUCH DISPLAY DRIVING METHOD
First Claim
1. A touch display substrate, comprising:
- a substrate, a common voltage compensation circuit, an electrode array and a touch display driving integrated circuit (TDDI circuit) all sequentially arranged on the substrate, and a first lead wire, a second lead wire, and a third lead wire disposed on the substrate;
the electrode array comprising a plurality of electrode units arranged in an array, and one first lead wire being disposed corresponding to each of the electrode units, and the common voltage compensation circuit comprising a plurality of switching units respectively corresponding to the plurality of electrode units;
each of the electrode units being electrically connected to an output end of the corresponding switching unit and the TDDI circuit through the corresponding first lead wire, and input ends of the plurality of switching units being electrically connected to the TDDI circuit through the second lead wires;
control ends of the plurality of switch units being electrically connected to the TDDI circuit through the third lead wires;
the TDDI circuit being configured to control the switching unit to turn on during a display phase, and simultaneously load a common voltage signal to the first lead wire and the second lead wire, and control the switching unit to turn off during a touch sensing phase, and load a touch sensing signal to the first lead wire.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention provides a touch display substrate and touch display driving method. The touch display substrate comprises: a substrate, a common voltage compensation circuit, an electrode array and a TDDI circuit, and first, second and third lead wires disposed on the substrate; the electrode array comprising a plurality of electrode units; the common voltage compensation circuit comprising a plurality of switching units; each electrode unit being electrically connected to an output end of switching unit and the TDDI circuit through a first lead wire, and input ends of the switching units being electrically connected to the TDDI circuit through the second lead wires; the switching unit turning on during display phase, the TDDI circuit simultaneously loading a common voltage signal to the first and second lead wires to achieve a dual-ended drive to reduce the common voltage signal difference on the electrode units to enhance the display effect.
-
Citations
10 Claims
-
1. A touch display substrate, comprising:
- a substrate, a common voltage compensation circuit, an electrode array and a touch display driving integrated circuit (TDDI circuit) all sequentially arranged on the substrate, and a first lead wire, a second lead wire, and a third lead wire disposed on the substrate;
the electrode array comprising a plurality of electrode units arranged in an array, and one first lead wire being disposed corresponding to each of the electrode units, and the common voltage compensation circuit comprising a plurality of switching units respectively corresponding to the plurality of electrode units; each of the electrode units being electrically connected to an output end of the corresponding switching unit and the TDDI circuit through the corresponding first lead wire, and input ends of the plurality of switching units being electrically connected to the TDDI circuit through the second lead wires;
control ends of the plurality of switch units being electrically connected to the TDDI circuit through the third lead wires;the TDDI circuit being configured to control the switching unit to turn on during a display phase, and simultaneously load a common voltage signal to the first lead wire and the second lead wire, and control the switching unit to turn off during a touch sensing phase, and load a touch sensing signal to the first lead wire. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- a substrate, a common voltage compensation circuit, an electrode array and a touch display driving integrated circuit (TDDI circuit) all sequentially arranged on the substrate, and a first lead wire, a second lead wire, and a third lead wire disposed on the substrate;
Specification