Bendable Display Panel Bending Detection Unit
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional flexible displays have inaccurate bending state detection due to non-monotonic strain signals in bending regions, which complicates the detection of bending angles and states.
Innovation Solution
A display panel design with distinct first and second regions, where the detection unit is placed in the non-bending second regions to detect the bending of the first regions, utilizing monotonic strain outputs for accurate bending angle measurement, and avoiding additional bonding processes by integrating the detection layer within the panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the detection unit is arranged in the bending region of the display panel, then the detection unit can directly detect the bending state, but the detection accuracy is reduced due to non-monotonic strain signals
Solution Approach 1:
The detection unit is extracted from the bending region and placed in the non-bending region adjacent to the bending region. This allows the detection unit to detect bending states through strain transmission from the bending region without being subjected to complex non-monotonic strain signals, thereby resolving the contradiction between detection capability and detection accuracy
Solution Approach 2:
The non-bending region serves as an intermediary between the bending region and the detection unit. The strain signals from the bending region are transmitted through this intermediary region to the detection unit, allowing indirect detection of bending states with monotonic strain outputs, thus improving measurement precision while maintaining detection capability
2Ease of manufacture
If external bonding materials are used to bond the detection layer, then the detection layer can be attached to the display panel, but creep issues occur affecting detection accuracy
Solution Approach 1:
The detection layer is merged with the display panel structure by integrating it within the panel rather than bonding it externally. This eliminates the need for external bonding materials that cause creep, thereby maintaining both ease of manufacture and detection accuracy
Solution Approach 2:
The patent converts the potential harm of adding external bonding materials (which cause creep) into a benefit by eliminating the need for such materials entirely. The detection layer is designed to be integrated within the panel structure, turning a manufacturing complexity into a solution that avoids creep issues and improves detection accuracy
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 approach enhances the accuracy of bending angle detection, allowing for precise monitoring of bending states, including folded and bent configurations, while avoiding creep issues associated with external bonding materials.
Implementation Method 1
a strain output from the detection unit in the non-bending region can be used to detect the bending angle of the display panel
Data Source
AI summary
A display panel and a display apparatus. The display panel includes at least one first region, at least two second regions, and a detection layer. The first region and the second region are adjacently arranged along a first direction, and the first region is located between adjacent second regions. The first region is bent, and the second region is not bent, in a case that the display panel is bent. The detection layer includes at least one detection unit, the detection unit is located in the second region, the detection unit does not overlap with the first region, and the detection unit is configured to detect bending of the first region. The display panel has high detection accuracy and strong detection capability.