Display Panel With Alternating Barrier Films
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Solution Overview
Problem
Current integration technologies for touch panels and OLED displays face issues such as complicated structures, large thickness, high cost, low production yield, poor moisture and oxygen barrier properties, and limited flexibility.
Innovation Solution
A display panel design featuring a substrate with a display element, a touch electrode layer, and touch signal lines in a single layer, with a first barrier layer comprising alternately arranged organic and inorganic films between the display element and touch electrode layer, providing excellent moisture and oxygen barrier properties while simplifying the structure and enabling flexible design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional integration technologies (On-Cell, OGS) are used to integrate touch panels and OLED displays, then touch functionality is achieved, but the structure becomes complicated and thickness increases
Solution Approach 1:
The patent combines the touch electrode layer and display element into a single integrated structure where the touch electrode layer is disposed in the same layer as the display element. This merging eliminates the need for separate touch panel and display components, thereby reducing structural complexity while maintaining both touch functionality and display performance.
Solution Approach 2:
The integrated layer serves multiple functions simultaneously - it acts as both the display element structure and the touch electrode layer. This multi-functionality allows the same structural layer to fulfill both display and touch sensing roles, reducing the overall number of components and simplifying the device architecture.
2Adaptability or versatility
If conventional integration technologies are used, then touch functionality is achieved, but production yield decreases and cost increases
Solution Approach 1:
By merging the touch electrode layer and display element into the same layer, the patent reduces the number of manufacturing steps and alignment processes required. This integration simplifies the production workflow, reduces material waste, and improves overall production yield while maintaining touch functionality.
3Adaptability or versatility
If conventional integration technologies are used, then touch functionality is achieved, but moisture and oxygen barrier properties deteriorate
Solution Approach 1:
The patent employs a barrier layer comprising alternately arranged organic films and inorganic films. This composite structure combines the advantages of both material types - the inorganic films provide excellent moisture and oxygen barrier properties, while the organic films offer flexibility and stress relief. The alternating arrangement creates a multi-layer barrier system that effectively prevents moisture and oxygen penetration while maintaining device reliability.
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
The solution results in a thinner, lighter, and more flexible display panel with improved moisture and oxygen barrier properties, reducing manufacturing complexity and maintaining image performance during touch operations.
Implementation Method 1
The first barrier layer is disposed between the display element and the touch electrode layer, and includes at least one organic film and at least one inorganic film alternately arranged
Data Source
AI summary
A display panel and a display device are provided. The display panel comprises a substrate, a display element, a touch electrode layer, a plurality of touch signal lines, and a first barrier layer. The display element, the touch electrode layer and the plurality of touch signal lines are disposed on the substrate, and the touch electrode layer and the touch signal lines are disposed in a same layer. The first barrier layer is disposed between the display element and the touch electrode layer, and includes at least one organic film and at least one inorganic film alternately arranged.