Capacitive Touch Display Electrode Integration
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Solution Overview
Problem
Portable electronic devices with touch-sensitive displays face challenges in optimizing user input and output due to limited space, requiring improvements in display technology to enhance functionality and portability.
Innovation Solution
The implementation of a touch-sensitive display assembly that includes a substrate with scanning and sense electrodes, a color filter, and a black matrix, where the electrodes are disposed between the substrate and the color filter, allowing for accurate touch detection and improved display quality by reducing manufacturing costs and layer thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional touch-sensitive display structures are used with multiple layers, then manufacturing precision and touch detection accuracy are maintained, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines the color filter layer and black matrix layer into a single integrated layer structure, eliminating the need for separate manufacturing steps and reducing overall display assembly complexity while maintaining touch detection functionality
Solution Approach 2:
The display structure is designed to serve multiple functions simultaneously: the color filter layer also acts as a touch-sensitive layer, and the black matrix provides both color filtering and structural support, reducing the need for additional dedicated layers
2Manufacturing precision
If more display layers are added to improve display quality, then display clarity is enhanced, but manufacturing cost and production time increase
Solution Approach 1:
Multiple functional layers are merged into fewer integrated structures, reducing the total number of manufacturing steps while maintaining display quality through optimized layer design
Solution Approach 2:
The patent optimizes the thickness and material composition of integrated layers to achieve desired display quality parameters while simplifying the manufacturing process
3Length of moving object
If the display assembly is made thinner to improve portability, then device compactness is improved, but touch sensitivity and display quality may deteriorate
Solution Approach 1:
The patent employs thin-film technologies for the color filter and electrode layers, achieving reduced display thickness while maintaining structural integrity and touch sensitivity through optimized film properties
Solution Approach 2:
Composite material structures are used to achieve high functionality in thin form factors, combining multiple functions in single layers with optimized material properties
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
This configuration enhances touch sensitivity and display clarity by accurately detecting touches and reducing manufacturing complexity, thereby improving the overall user experience and portability of portable electronic devices.
Implementation Method 1
a touch-sensitive display, also known as a touchscreen display, is particularly useful on handheld devices
Data Source
AI summary
An assembly includes a substrate, scanning electrodes and sense electrodes disposed on the substrate, and color filter and black matrix disposed in an arrangement on the scanning electrodes and sense electrodes. The scanning electrodes and sense electrodes are disposed between the substrate and the arrangement.