Floating Wiring Groups for Uniform Touch Wires in Display Substrates
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Solution Overview
Problem
The current FMLOC structure faces issues with non-uniform touch wires below the bending area, leading to suboptimal touch performance.
Innovation Solution
A display substrate design that includes a base substrate with a display area, a bending area, and an extension area, featuring a touch wiring group and at least one floating wiring group on its sides. The floating wiring groups are electrically insulated from the touch wires and arranged to protect them during the etching process, ensuring uniform line widths and improved touch performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the touch wiring group is arranged in the extension area below the bending area, then the on cell technology can be implemented with integrated touch display screen, but the touch wires become non-uniform due to over-etching, leading to suboptimal touch performance
Solution Approach 1:
The floating wiring groups are formed in advance before the touch wiring group etching process. These pre-formed wire structures serve as protective elements that prevent over-etching of the touch wires, ensuring uniform line widths and optimal touch performance while enabling the integrated on cell technology
2Manufacturing precision
If the floating wiring groups are added to protect the touch wires during etching, then the uniformity of touch wires is improved, but the device complexity increases
Solution Approach 1:
The floating wiring groups serve multiple functions: they act as protective elements during the etching process to prevent over-etching, maintain uniform touch wire line widths, and support the overall structural integrity of the wiring system. This multi-functionality reduces the need for additional separate protective structures, thereby limiting the increase in device complexity
Data Source
AI summary
Provided in the embodiments of the present disclosure are a display substrate and a display apparatus. The display substrate includes a base substrate, including: a display area, a bending area, which is connected to a side of the display area, and an extension area, which is connected to the side of the bending area that is away from the display area; a touch-control wiring group, wherein the touch-control wiring group is located in the extension area, and the touch-control wiring group includes a plurality of touch-control wirings, which extend in a first direction and are sequentially arranged in a second direction; and a first floating wiring group.