Integrated Electromagnetic Touch Display Panel Design
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Solution Overview
Problem
Externally mounted electromagnetic touch screens are relatively thick and costly due to their complex structure and bulkiness.
Innovation Solution
An electromagnetic touch display panel is designed with a substrate, circuit board, display trace, and antenna trace, where the circuit board includes signal terminals for transmitting display and antenna signals, and the antenna trace features intersecting and insulated antennas to reduce wiring space and integrate touch and display functions within a thinner, more cost-effective design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an externally mounted electromagnetic touch panel is used, then the touch function can be achieved, but the overall thickness increases and the structure becomes complex
Solution Approach 1:
The patent merges the electromagnetic touch panel and display panel into a single integrated structure. The touch detection electrodes are formed on the same substrate as the display electrodes, eliminating the need for separate externally mounted touch panels. This integration reduces overall thickness while maintaining both touch and display functions.
Solution Approach 2:
The patent implements multi-functionality by using the same substrate and electrode structures for both display and touch detection purposes. The display electrode serves dual functions as both the display element and the touch detection element, reducing structural complexity and thickness.
2Reliability
If an externally mounted electromagnetic touch panel is used, then the touch function can be achieved, but the structure becomes complex and costs increase
Solution Approach 1:
The patent combines the touch detection electrodes and display electrodes into a single integrated structure on one substrate. This merging eliminates the need for separate externally mounted panels and complex interconnections, thereby reducing structural complexity while maintaining full touch functionality.
Solution Approach 2:
The integrated electrode structure serves multiple functions simultaneously - display and touch detection - reducing the need for separate dedicated components and simplifying the overall device architecture.
3Reliability
If separate signal transmission lines are used for display and antenna signals, then signal transmission can be achieved, but the wiring space increases
Solution Approach 1:
The patent merges the display signal transmission lines and antenna signal transmission lines into a shared wiring structure. The same conductive traces on the substrate are used to transmit both display signals and antenna signals, significantly reducing the required wiring space while ensuring reliable signal transmission for both functions.
Data Source
AI summary
An electromagnetic touch display panel is provided. The electromagnetic touch display panel includes: a substrate having a display area and a binding area, a circuit board disposed in the binding area and including a first signal terminal and a second signal terminal, a display trace extending from the display area to the binding area and connected to the first signal terminal for transmitting a display signal, and an antenna trace extending from the display area to the binding area and connected to the second signal terminal for transmitting an antenna signal.