Display Device Support Substrate Groove Design for Narrow Frame
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Solution Overview
Problem
There is a challenge in creating a display device with a narrower frame, as existing techniques for achieving this, such as folding areas outside the display panel, do not effectively minimize the frame width while maintaining structural integrity and display quality.
Innovation Solution
A display device design featuring a sheet-like display panel with specific support substrates and grooves allows for folding along intersecting directions, reducing the frame width by moderating stress and maintaining flatness of non-display areas, thereby narrowing the frame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If areas outside the display panel are folded to narrow the frame, then the frame width is reduced, but the structural integrity and flatness of non-display areas deteriorate
Solution Approach 1:
The support substrate is divided into multiple regions: a first support portion overlapping the display area, and second and third support portions overlapping non-display areas. This segmentation allows differential support strategies - the first support portion maintains display quality while the second and third support portions prevent unwanted folding in non-display areas, thus resolving the contradiction between frame narrowing and structural integrity.
Solution Approach 2:
The support substrate acts as an intermediary element between the display panel and the external environment. It mediates the mechanical stresses during folding operations, allowing the display area to be properly supported while controlling the behavior of non-display areas, thereby maintaining structural integrity during frame narrowing operations.
2Length of stationary object
If areas outside the display panel are folded to narrow the frame, then the frame width is reduced, but the flatness of non-display areas deteriorates
Solution Approach 1:
Different regions of the support substrate are given different properties and functions. The first support portion under the display area provides uniform support for display quality, while the second and third support portions under non-display areas are specifically designed to maintain flatness and prevent unwanted folding. This local differentiation resolves the contradiction between frame narrowing and maintaining flatness in non-display areas.
3Stability of the object's composition
If support substrate is added to maintain structural integrity, then structural integrity is improved, but device complexity increases
Solution Approach 1:
The support substrate performs multiple functions simultaneously: it provides mechanical support for the display panel, enables controlled folding in specific regions, maintains flatness in non-display areas, and facilitates frame narrowing. By making the support substrate multi-functional, the patent reduces device complexity while maintaining structural integrity.
Data Source
AI summary
According to one embodiment, a display device includes a sheet-like display panel having a first area, second and third areas, and a support substrate bonded to the display panel. The support substrate has a first support portion overlapping the first area, second and third support portions overlapping the second area, fourth and fifth support portions overlapping the third area, a first groove between the first and second support portions, a second groove between the second and third support portions, a third groove between the first and fourth support portions, and a fourth groove between the fourth and fifth support portions. The first and second grooves extend along the second direction. The third and fourth grooves extend along a first direction.