Touch display device and manufacturing method thereof

Abstract

Provided are a touch display device and a manufacturing method thereof. The touch display device comprises a display area and a non-display area, the display area comprises a gate metal layer, a source and drain electrode metal layer, a conversion layer and a public electrode layer, the gate metal layer comprises a gate electrode and a plurality of gate lines, the source and drain electrode metal layer comprises a source electrode, a drain electrode and a plurality of source electrode lines, the conversion layer comprises a plurality of conversion lines, and the public electrode layer comprises a plurality of independent public electrodes. First via holes are formed in the first gate lines, at least part of the gate lines are exposed by the first via holes, second via holes are formed in the public electrodes, at least part of the public electrodes are exposed by the second via holes, the gate lines cross with the source electrode lines, the extending direction of the conversion lines is parallel to that of the source electrode lines, the conversion lines comprise a plurality of first conversion lines and a plurality of second conversion lines, the first conversion lines are electrically connected with the gate lines through the first via holes, and the second conversion lines are electrically connected with the public electrodes through the second via holes.

Description

technical field [0001] The present invention relates to the field of touch control, in particular to a touch display device and a manufacturing method thereof. Background technique [0002] In the prior art, a liquid crystal display generally includes a display panel, which has a plurality of data lines (data lines), a plurality of gate lines (or called scan lines) interlaced with these data lines, and a plurality of grid lines arranged in a matrix. pixel unit. In addition, a thin film transistor (Thin Film Transistor, TFT) is also included at the intersection of the data line and the gate line, wherein the gate of the TFT is electrically connected to the gate line, and the source of the TFT is electrically connected to the data line. And the drain of the TFT is electrically connected to the pixel electrode. In addition, the display panel also configures a gate driver to sequentially provide gate driving signals to the gate lines, and configures a source driver to provide ...

AI Technical Summary

Problems solved by technology

However, the lead wires used to provide the touch signals of the touch electrodes still need to pass through the non-effective display areas on both sides of the display panel, which further increases the frame area of ​​the display panel, resulting in a very small frame area of ​​the liquid crystal display combined with the touch function. very narrow

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