Patterned Glass Foldable Display Window for Visibility and Flexibility
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Solution Overview
Problem
Existing display devices lack a design that enhances visibility and flexibility, particularly in foldable display devices, which are not optimized for seamless folding and maintain high image quality.
Innovation Solution
A display device with a folding area featuring a patterned glass window that includes groove patterns and a filling layer, allowing for flexible folding and improved visibility through a structured light emission pattern.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a patterned glass is added to enhance visibility, then image quality improves, but device complexity increases
Solution Approach 1:
The window and patterned glass are merged into a single integrated component. The window includes both the transparent window layer and the patterned glass layer formed on it, combining protective and optical functions in one structure. This reduces the number of separate components while maintaining enhanced visibility through the patterned glass features.
2Measurement precision
If the window includes multiple groove patterns and filling layers, then visibility is enhanced, but manufacturing complexity increases
Solution Approach 1:
The patterned glass is segmented into multiple groove patterns (first groove patterns and second groove patterns) with different orientations. The first groove patterns extend in a first direction while the second groove patterns extend in a second direction perpendicular to the first direction. This segmentation creates enhanced optical effects for improved visibility while allowing systematic manufacturing through structured patterning processes.
3Measurement precision
If the window is made with patterned glass for high visibility, then image quality improves, but ease of operation during folding decreases
Solution Approach 1:
The patterned glass has different local properties in different regions. The first groove patterns are optimized for areas corresponding to light emitting elements, while the second groove patterns are optimized for peripheral areas. This local differentiation enhances visibility where needed while the overall integrated window structure maintains flexibility for folding operations.
Data Source
AI summary
A display device includes a folding area foldable around a folding axis on a plane, and a non-folding area adjacent to the folding area. The display device includes a display panel including a plurality of light emitting elements, and a window disposed on the display panel and including a patterned glass. The patterned glass includes a patterned portion corresponding to the folding area and having one surface in which a plurality of first groove patterns extending in a first direction and arranged in a second direction perpendicular to the first direction are defined, and a non-patterned portion adjacent to the patterned portion and corresponding to the non-folding area. The folding area includes a plurality of first areas corresponding to the plurality of light emitting elements, respectively, and arranged in the second direction, and a peripheral area adjacent to the plurality of first areas, and satisfies Equation 1 or 2.