Curved Display Bracket for PCB Bonding Accuracy
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Solution Overview
Problem
The accuracy of a sucking head for bonding a flexible printed circuit board in curved display screens is compromised due to the tilting of the flexible printed circuit board along the curved surface of the cover plate during the bonding process, leading to potential damage and uneven support.
Innovation Solution
A display device comprising a panel, a flexible connecting member, a printed circuit board, and a bracket with a planar and arc-shaped portion that supports the printed circuit board, ensuring accurate suction and reducing damage during bonding by providing uniform support and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a curved cover plate is used to achieve a curved display screen, then the aesthetic appearance and full-screen effect are improved, but the flexible printed circuit board tilts along the curved surface causing reduced bonding accuracy
Solution Approach 1:
The support structure is divided into multiple components: a support plate with first support points for the printed circuit board, and a second support structure with second support points for the flexible connecting member. This segmentation allows independent optimization of support for each component, maintaining planarity for bonding accuracy while accommodating the curved display requirement.
Solution Approach 2:
The support plate and second support structure act as intermediary elements between the curved cover plate and the flat printed circuit board/flexible connecting member. These intermediaries provide a planar bonding surface while the curved cover plate maintains its aesthetic shape, thus resolving the contradiction between curved shape and bonding precision.
2Stability of the object's composition
If the flexible printed circuit board is pressed against the curved cover plate, then the display assembly is compacted, but the sucking head accuracy is compromised during bonding
Solution Approach 1:
The support plate and second support structure are installed before the bonding process to preliminarily establish the correct positions and planar orientations of the printed circuit board and flexible connecting member. This preliminary action ensures that when the sucking head operates, all components are in their optimal positions, maintaining both compactness and bonding accuracy.
3Device complexity
If the printed circuit board is directly bonded to the curved surface, then the structure is simplified, but uneven support and potential damage occur
Solution Approach 1:
Instead of making the entire structure complex, the invention applies localized support structures only where needed: the support plate under the printed circuit board and the second support structure under the flexible connecting member. This localized approach provides necessary support and reliability without significantly increasing overall structural complexity.
Data Source
AI summary
The present application provides a display device and an electronic apparatus. The display device includes a panel, a flexible connecting member, a printed circuit board, a cover plate, and a bracket. The flexible connecting member connects the panel and the printed circuit board. The cover plate comprises a flat region and a curved region. An inner surface of the cover plate is attached to a first surface of the panel. The bracket comprises a planar portion. The planar portion horizontally supports the printed circuit board. Accordingly, the present application improves accuracy of a sucking head for sucking the printed circuit board during a bonding process of the printed circuit board.