Patent ID: 9727169
Date: 2017-08-08
CPC Classifications: G02F,G06F,G09G

Claim:
1. An embedded display screen having touch detection function, comprising: an upper substrate; a lower substrate; a liquid crystal display layer disposed between the an upper substrate and the lower substrate; a common electrode disposed between the upper substrate and the liquid crystal display layer, wherein, the common electrode is divided into multiple sub-electrodes arranged as a matrix to form a touch detection electrode; a display controller disposed outside a space formed by the upper substrate and the lower substrate, disposed at a first side of the space, and the display controller is connected with the common electrode through lead lines; a driving selector disposed between the upper substrate and the lower substrate, disposed oppositely to the display controller, and correspondingly connected with the multiple sub-electrodes one by one through multiple lead wires; a touch controller disposed outside the space formed by the upper substrate and the lower substrate, disposed at a second side of the space and disposed oppositely to the display controller, wherein, the touch controller is connected with the driving selector through at least one selection signal line and at least one scanning signal line; a total number of the at least one selection signal line and the at least one scanning signal line is less than a total number of the lead wires; the touch controller sends a selection signal to the driving selector through the at least one selection signal line; the driving selector responses to the selection signal and selects at least one lead wire from the multiple lead wires to be connected with the at least one scanning signal line through at least one switching modules; and wherein, the driving selector comprises multiple switching modules; each of the multiple switching modules comprises a first terminal, a second terminal, and a control terminal; the first terminals of the switching modules are directly connected and electrically connected with each other, and are connected with the touch controller only through the at least one scanning signal lines; each second terminal of the switching module is connected with one corresponding sub-electrode only through one corresponding lead wire; control terminals of the multiple switching modules are directly connected and electrically connected with each other, and each control terminal is connected with the touch controller only through the selection signal line.