Foldable Display Asymmetric Side Surfaces and Inorganic Encapsulation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current foldable display devices face challenges in achieving a balance between flexibility and durability, particularly in maintaining the integrity of the display and window modules during the folding process, while also ensuring effective light emission and functional capabilities such as touch sensing and biometric recognition.
Innovation Solution
The implementation of a flexible display module with an electroluminescent unit surrounded by an inorganic-inorganic contact closed loop, combined with a cushion module and a flexible window module, where the side surfaces of these components are strategically positioned to form acute angles and distinct planes, enhancing the structural integrity and reducing damage during laser cutting and folding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the display module and window module are positioned with side surfaces on the same plane, then the structural simplicity is improved, but the damage during laser cutting and folding increases
Solution Approach 1:
The patent applies asymmetry by positioning the side surfaces of the display module and window module on different planes rather than the same plane. Specifically, the side surface of the window module is positioned outside the side surface of the display module, creating an asymmetric configuration that protects the display area during laser cutting and folding operations while maintaining functional integration.
2Manufacturing precision
If the electroluminescent unit is surrounded by an inorganic-inorganic contact closed loop, then the manufacturing precision is improved, but the device complexity increases
Solution Approach 1:
The patent merges the inorganic encapsulation structures by creating an inorganic-inorganic contact closed loop that surrounds the electroluminescent unit. This closed loop structure integrates the protection function against moisture and oxygen while maintaining manufacturing precision, effectively combining multiple protective functions into a unified structure.
3Reliability
If the cushion module is positioned under the display module, then the protection during folding is improved, but the device complexity increases
Solution Approach 1:
The patent implements beforehand cushioning by positioning the cushion module under the display module in advance of the folding operation. This cushion module is strategically placed to provide protective cushioning during the folding process, preventing damage to the display module while maintaining a relatively simple overall structure.
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 minimizes damage to the display area during manufacturing and enhances the robustness and flexibility of the foldable display device, allowing for efficient light emission and integration of functional modules like touch sensing and biometric recognition.
Implementation Method 1
The flexible display module may have an electroluminescent unit
Data Source
AI summary
A foldable display device includes a flexible display module having an electroluminescent unit, a flexible functional module on the flexible display, the flexible functional module having at least one function selected from the group of polarization, a color filtering, color conversion, a touch sensing, and biometric information recognition, and a flexible window module on the flexible functional module. A side surface of the flexible display module, a side surface of the flexible functional module, and a side surface of the flexible window module may be located on a first plane at a first side portion. An inner angle formed by an upper surface of the flexible window module emitting light and the first plane may be an acute angle at the first side portion.