Display Panel Touch Structure Reducing Non-Display Area
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Solution Overview
Problem
The on-cell touch solution for smart devices increases the area ratio of non-display to display panel due to metal leads at the periphery of touch electrodes, which hampers the screen-to-body ratio.
Innovation Solution
The touch electrodes' metal leads are positioned under the touch area, with a structured arrangement of touch units and traces below the touch area, allowing electrical connections while minimizing the non-display area occupation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If metal leads are disposed at the periphery of touch electrodes to electrically connect touch electrodes to the flexible circuit board, then the touch function is achieved, but the area ratio of non-display area to display panel increases
Solution Approach 1:
The patent moves the metal leads from the periphery (2D plane at the edge) to underneath the touch area (3D spatial repositioning), effectively utilizing the vertical dimension to relocate components and reduce the footprint of non-display areas while maintaining electrical connectivity
2Reliability
If metal leads are disposed at the periphery of touch electrodes to electrically connect touch electrodes to the flexible circuit board, then the touch function is achieved, but the screen-to-body ratio decreases
Solution Approach 1:
By repositioning metal leads to the layer underneath the touch area, the patent maximizes the visible display area and improves the screen-to-body ratio, as the leads no longer occupy peripheral space that would reduce the effective screen area
Data Source
AI summary
The present disclosure provides a display panel, including a light emitting layer and a touch structure, wherein the touch structure includes a plurality of touch areas, and each of the touch areas includes a plurality of touch units, which are arranged in a first direction in at least two rows and arranged in at least two columns along the second direction, and the plurality of touch units in each of the at least two columns are arranged along the first direction, wherein a plurality of first traces are disposed below the touch area, the touch units in a same row are electrically connected to the driving circuit through one of the plurality of first traces corresponding to the row, the touch units in a same column are electrically connected to the driving circuit through a second trace corresponding to the column.