TFT liquid crystal display apparatus having a touch function

摘要

A TFT liquid crystal display apparatus having a touch function, including: a first electrode layer, having multiple first electrodes and multiple thin film transistors, wherein each of the multiple thin film transistors has a source coupled to a source control unit, a gate coupled to a gate control unit, and a drain coupled to one of the multiple first electrodes and to one of multiple storage capacitors; a liquid crystal display layer, located above the first electrode layer; a transparent electrode layer, being located above the liquid crystal display layer and having multiple transparent strip electrodes; and multiple switches, of which each has a control end coupled with a mode control signal, a first contact coupled to one of the multiple transparent strip electrodes, a second contact coupled to a common voltage generation unit, and a third contact coupled to a touch detection unit.

主权项

1. TFT liquid crystal display apparatus having a touch function, comprising:
a first electrode layer, having multiple first electrodes and multiple thin film transistors; each of said multiple thin film transistors having a source, a gate, and a drain; said source being coupled to a source control unit; said gate being coupled to a gate control unit; said drain being coupled to one of said multiple first electrodes and to one of multiple storage capacitors; a liquid crystal display layer, located above said first electrode layer; a transparent electrode layer, being located above said liquid crystal display layer and having multiple transparent strip electrodes, wherein a touch plane is provided above said transparent electrode layer and each of said multiple transparent strip electrodes opposes at least one of said multiple first electrodes; multiple switches, each of which having a control end, a first contact, a second contact, and a third contact; said control end being coupled with a mode control signal; said first contact being coupled to one of said multiple transparent strip electrodes; said second contact being coupled to a common voltage generation unit; said third contact being coupled to a first touch detection unit; when said mode control signal is at a first state, said first contact connects electrically with said second contact; and when said mode control signal is at a second state, said first contact connects electrically with said third contact.