Touch Sensor Display Bezel Wire Routing
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Solution Overview
Problem
The existing touch sensor integrated type display devices face issues with deteriorated display and touch performance due to overlapping gate LOG wires and grouping wires, which can lead to increased resistance and reduced connectivity between touch electrodes, affecting the overall performance.
Innovation Solution
The proposed solution involves a touch sensor integrated type display device with a bezel area that includes a gate driving IC, flexible printed circuit board, and gate line-on-glass (LOG) wires, where the grouping wires in the bezel area are arranged parallel to each other with varying lengths to avoid overlapping with the gate LOG wires, ensuring non-overlap and maintaining the wire length for touch sensors and gate LOG area, thereby preventing performance deterioration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If grouping wires are arranged in the bezel area to connect touch electrodes, then connectivity between touch electrodes is improved, but overlapping with gate LOG wires increases resistance and deteriorates performance
Solution Approach 1:
The patent applies dimensionality change by varying the lengths of grouping wires in the bezel area to create a non-overlapping arrangement with gate LOG wires. Instead of arranging all grouping wires at the same position, the invention extends or shortens specific grouping wires to different lengths, thereby distributing them in the spatial dimension to avoid overlap and reduce resistance while maintaining connectivity.
2Object-affected harmful factors
If wire length is reduced to avoid overlap, then resistance is reduced, but touch sensor area and gate LOG area are compromised
Solution Approach 1:
The patent applies local quality by making each grouping wire have a different length according to its specific position and function. Instead of uniformly reducing all wire lengths, the invention selectively adjusts the length of individual grouping wires in the bezel area, thereby locally optimizing resistance reduction while preserving the necessary touch sensor area and gate LOG area for other wires.
Data Source
AI summary
Provided is a touch sensor integrated type display device. The device includes: an active area (AA), a bezel area (BA) outside the AA, the BA including: a data driving integrated circuit (IC), a flexible printed circuit (FPC) board, a gate driving IC, and gate line-on-glass (LOG) wires between the FPC board and the gate driving IC, first electrodes in the AA and crossing in first and second directions, second electrodes in the AA, arranged in the second direction and alternately disposed with the first electrodes along the first direction, grouping wires in the BA in parallel between the AA and the data driving IC, having different lengths, such that the grouping wires are non-overlapped with the gate LOG wires, and first sub-routing wires connecting the first electrodes, corresponding to one line in the first direction, to each of the grouping wires.