Bridge-Connected Display Panel Bending for Narrow Bezel Uniformity
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Solution Overview
Problem
Existing display devices face challenges in reducing bezel size, ensuring uniform curvature between bending areas, and minimizing attachment deviation between printed circuit films and circuit boards.
Innovation Solution
A display panel design featuring a first part surrounded by a second part with a bending area, where the second parts are spaced apart and protrude from the first part, and a bridge part connects adjacent second parts, allowing for uniform curvature and reduced bezel size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the second part is bent to reduce bezel space, then the bezel size is reduced, but the radii of curvature between different bending areas become non-uniform
Solution Approach 1:
The bridge part acts as an intermediary element connecting adjacent second parts. It includes a first bending area that bridges the curvature transition between different second parts, ensuring that the radii of curvature remain uniform across the entire bent structure. This intermediary component transfers and harmonizes the curvature from one second part to another, solving the non-uniformity problem while maintaining the reduced bezel configuration.
2Strength
If multiple second parts are used to reduce bezel in medium or large-sized display devices, then the bending stress on each part is reduced, but the attachment deviation between printed circuit film and circuit board increases
Solution Approach 1:
The bridge part serves as a mediator that synchronizes the curvature of multiple second parts during the bending process. By including a first bending area that connects adjacent second parts, it ensures they bend to the same radius of curvature, thereby preventing attachment deviation between the printed circuit film and circuit board while maintaining reduced bending stress through the distributed multi-part structure.
3Area of stationary object
If the second part protrudes from the first part in a direction intersecting the first direction, then the bezel is reduced, but the structural complexity increases
Solution Approach 1:
The display device structure is segmented into distinct functional parts: the first part (display panel), multiple second parts (protruding structures), and bridge parts (connecting elements). This segmentation allows each component to perform its specific function - the second parts reduce bezel space when bent, while the bridge parts manage the curvature uniformity - thereby achieving bezel reduction without overwhelming structural complexity.
Solution Approach 2:
The second parts protrude from the first part in a second direction that intersects with the first direction (horizontal arrangement). This dimensional change allows the structure to reduce bezel space in the vertical direction while maintaining horizontal spacing between second parts, creating a three-dimensional configuration that optimizes both bezel size and structural manageability.
Data Source
AI summary
A display device includes a display panel including a display area, a first part positioned around the display area and including a first non-display area, and second parts disposed in a second non-display area positioned outside the first non-display area, and a bridge part disposed between adjacent second parts, wherein the second parts are spaced apart from each other in a first direction, each of the second parts protrudes from the first part in a second direction intersecting the first direction, and the bridge part physically connects the adjacent second parts.