Display Panel Touch Layer Integration for Thin Stylus Input
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Solution Overview
Problem
Existing touch display panels that support stylus touch require an external Electro Magnetic Resonance (EMR) module, increasing thickness and manufacturing costs due to separate assembly processes.
Innovation Solution
Integrate a capacitive touch unit and an electromagnetic touch unit into a single touch layer, with electrodes and connecting portions arranged in different layers to reduce thickness and simplify manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an external EMR module is attached to support stylus touch, then stylus touch functionality is achieved, but the thickness of the display panel increases
Solution Approach 1:
The patent merges the capacitive touch unit and electromagnetic touch unit into a single integrated touch layer. The electromagnetic electrodes are arranged in different layers from the capacitor electrodes, combining both touch sensing functionalities in one structure rather than using separate external modules, thereby reducing overall panel thickness while maintaining both finger touch and stylus touch capabilities
Solution Approach 2:
The touch layer is designed to perform multiple functions simultaneously - it serves as both the capacitive touch sensing layer for finger touch and the electromagnetic touch sensing layer for stylus touch. This multi-functional design eliminates the need for separate external EMR modules, reducing thickness while achieving versatility
2Adaptability or versatility
If an external EMR module is attached to support stylus touch, then stylus touch functionality is achieved, but the manufacturing cost increases
Solution Approach 1:
The patent combines both touch sensing functions into a single integrated touch layer structure that can be manufactured in one process rather than requiring separate assembly of external EMR modules. This integration reduces manufacturing steps, labor costs, and assembly complexity, thereby lowering overall manufacturing cost while maintaining stylus touch functionality
Solution Approach 2:
The unified touch layer serves dual purposes as both capacitive and electromagnetic sensing layer, eliminating the need for separate external modules and their associated manufacturing and assembly processes. This multi-functional approach simplifies the supply chain and reduces per-unit costs
3Adaptability or versatility
If an external EMR module is attached to support stylus touch, then stylus touch functionality is achieved, but the manufacturing process becomes more complex
Solution Approach 1:
The patent merges the electromagnetic electrodes and capacitive electrodes into a single integrated touch layer structure. The electromagnetic electrodes are arranged in different layers from the capacitive electrodes, creating a unified multi-layer structure that can be manufactured together in one process rather than requiring separate attachment of external modules, thereby simplifying the manufacturing process
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Reduces panel thickness and manufacturing costs while maintaining touch sensitivity and functionality, simplifying the manufacturing process.
Implementation Method 1
When the stylus moves on the display screen, the electromagnetic coils of the EMR module communicates electromagnetically with the stylus
Implementation Method 2
The capacitive touch unit includes a first capacitor electrode and a second capacitor electrode
Data Source
AI summary
Provided are a display panel and a display apparatus. The touch layer includes a capacitive touch unit including a first capacitor electrode and a second capacitor electrode whose extension directions intersect and an electromagnetic touch unit including a first electromagnetic electrode and a second electromagnetic electrode whose extension directions intersect. At least one of the first electromagnetic electrode and the second electromagnetic electrode is disposed in a different layer from the first capacitor electrode or the second capacitor electrode. Two adjacent first capacitor electrodes are electrically connected through at least one first capacitor connecting portion, and two adjacent second capacitor electrodes are electrically connected through at least one second capacitor connecting portion. The first electromagnetic connecting portion or the second electromagnetic connecting portion is disposed in a same layer as one of the first capacitor connecting portion and the second capacitor connecting portion.