Foldable Display Device Curved Support and Protective Plate
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing foldable display devices with dual screens suffer from a low screen-to-body ratio and an unsightly appearance due to the narrow and long secondary screen in the folded state.
Innovation Solution
A foldable display device design featuring a flexible display panel that wraps around a curved support part and extends to the other side of a second support plate, with a protective plate covering the bending axis to prevent exposure and potential damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a straight screen is used for the secondary screen in the folded state, then the installation space between the screen and the middle frame edge can be accommodated, but the screen-to-body ratio decreases and the appearance becomes unsightly
Solution Approach 1:
The patent applies curvature to the secondary screen by designing it to wrap around the curved support part, transforming the screen shape from straight to curved. This curved configuration allows the screen to better fit the folded device structure while maximizing the display area and improving the screen-to-body ratio, thereby resolving the contradiction between installation stability and screen area
2Reliability
If a front frame with protective glass is added to fix the straight screen, then the screen installation is stabilized, but the display space is sacrificed and the screen becomes narrower and longer
Solution Approach 1:
The patent merges the protective function with the structural support function by integrating the protective plate into the curved support part structure. The protective plate is positioned to cover the bending axis area where the flexible display panel bends, providing protection without requiring a separate front frame structure, thus preserving display space while maintaining screen fixation
Solution Approach 2:
The curved support part with its arc-shaped cross-section provides a natural protective structure that follows the bending path of the flexible display panel. This curved geometry protects the panel during folding while allowing maximum display area, eliminating the need for additional protective framing that would reduce screen space
3Area of stationary object
If the flexible display panel wraps around the curved support part, then the screen aspect ratio and display range are improved, but the bending axis area becomes exposed and vulnerable to damage
Solution Approach 1:
The protective plate is designed with a curved surface that matches the arc-shaped cross-section of the curved support part, creating a seamless protective cover over the bending axis area. This curved protective structure follows the natural bending path of the flexible display panel, providing protection against scratches and wear while maintaining the improved display range achieved through the wrapped configuration
4Area of stationary object
If the protective plate is made of transparent material, then the display appearance is maintained, but the structural strength may be reduced
Solution Approach 1:
The protective plate is integrated with the curved support part structure, forming a composite assembly where the transparent protective plate works in conjunction with the structural support framework. This composite structure maintains visual transparency for display purposes while the integrated support structure provides the necessary mechanical strength and protection
Data Source
AI summary
Disclosed is a foldable display device, comprising a first support plate, a second support plate, a bending member and a flexible display panel. The second supporting plate comprises a flat support part, a curved support part and a protective plate which are connected. The curved support part is located at one end of the flat support part away from the first support plate. One end of the flexible display panel wraps around the curved support part and extends to an other side of the second support plate, and penetrates a gap between a cover plate and the curved support part to avoid scratches and wear.