Metal-Barrier Touch Display Structure for Thin Low-Power Panels
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display devices face challenges in providing a touch detection function with a thin form factor and low power consumption while maintaining effective touch sensitivity.
Innovation Solution
A display device design incorporating a substrate with a metal barrier having an opening area and a first lens overlapping with the opening, along with a touch electrode structure, to enhance touch detection capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a touch detection function is added to the display device, then touch sensitivity is improved, but device thickness and power consumption increase
Solution Approach 1:
The patent combines the touch electrode function with the metal barrier layer, making the metal barrier serve dual purposes: as a barrier layer and as a touch electrode. This integration eliminates the need for separate touch electrode layers, thereby reducing overall panel thickness while maintaining touch detection capability
Solution Approach 2:
The metal barrier layer is designed to perform multiple functions simultaneously: it acts as both a barrier layer and a touch electrode. The opening area in the metal barrier allows it to detect touch input while maintaining its barrier functionality, achieving multi-functionality with a single structure
2Reliability
If a touch detection function is added to the display device, then touch sensitivity is improved, but power consumption increases
Solution Approach 1:
By merging the touch electrode function into the metal barrier layer, the patent reduces the number of separate components and their associated power requirements. The integrated structure allows for more efficient signal detection with lower power consumption compared to traditional multi-layer touch sensor configurations
3Length of moving object
If the display panel is made thinner, then device portability is improved, but touch detection capability deteriorates
Solution Approach 1:
The patent introduces opening areas in the metal barrier layer at specific locations where touch detection is needed. This local modification allows the metal barrier to maintain its barrier function in most areas while providing touch detection capability at the opening areas, achieving both thinness and touch sensitivity
Solution Approach 2:
The patent utilizes the vertical dimension by stacking the metal barrier layer with opening areas to create touch detection functionality. The opening areas in the metal barrier expose underlying structures that can detect touch input, adding touch detection capability in the vertical layering without increasing horizontal thickness
Data Source
AI summary
A display device may include a substrate, an encapsulation layer disposed on the substrate, a metal barrier including an opening area and constituting a touch electrode, and a first lens disposed to overlap with the opening area of the metal barrier, thereby providing a touch detection function.