Display Device Shape Maintaining Portion for Circuit Board Protection
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Solution Overview
Problem
Existing display devices face challenges in maintaining the structural integrity and reliability of the circuit board, particularly when it is curved to accommodate a dome-shaped window, which can lead to damage and assembly issues.
Innovation Solution
The display device incorporates a shape maintaining portion with a first surface convexly curved to match the dome shape of the window and a second surface that is flat to accommodate the circuit board, ensuring the circuit board maintains a flat shape and preventing interference with the bending portion of the display panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the circuit board is curved to accommodate a dome-shaped window, then the display device can achieve a compact and aesthetically pleasing design, but the structural integrity and reliability of the circuit board deteriorates, leading to potential damage and assembly issues
Solution Approach 1:
The support structure is divided into two distinct portions: a first support portion with a curved inner surface that contacts the curved display panel, and a second support portion with a flat upper surface that supports the circuit board. This segmentation allows each portion to independently fulfill its specific function - the curved portion accommodates the dome shape while the flat portion maintains circuit board integrity, thereby resolving the contradiction between achieving a compact dome design and maintaining circuit board reliability.
Solution Approach 2:
Different regions of the support structure are given different geometric properties: the first support portion has a curved inner surface matching the dome shape to accommodate the display panel, while the second support portion has a flat upper surface to provide stable support for the circuit board. This local differentiation of quality ensures that each region of the support structure is optimized for its specific function, allowing the overall system to achieve both the desired dome shape and circuit board reliability.
2Shape
If the circuit board is curved, then the display device achieves a compact form factor, but the manufacturing complexity and assembly difficulty increase
Solution Approach 1:
The support structure is segmented into a first support portion with curved geometry and a second support portion with flat geometry. This segmentation allows the curved display panel and flat circuit board to be assembled independently on their respective support portions, significantly simplifying the assembly process compared to attempting to curve the entire assembly including the circuit board.
Solution Approach 2:
The support structure acts as an intermediary component between the curved display panel and the flat circuit board. It provides a curved inner surface that accommodates the display panel's dome shape while presenting a flat upper surface to the circuit board, thereby mediating between two incompatible geometries and enabling straightforward assembly without requiring the circuit board itself to be curved.
3Shape
If the entire assembly is curved to match the dome shape, then the display device achieves a unified aesthetic design, but the circuit board and its elements are subjected to stress and potential damage
Solution Approach 1:
The support structure exhibits local quality differentiation: the first support portion has a curved inner surface that provides a unified aesthetic design matching the dome shape, while the second support portion has a flat upper surface that prevents stress concentration on the circuit board. This local differentiation allows the assembly to achieve unified aesthetics without compromising circuit board strength.
Solution Approach 2:
The first support portion copies the curved geometry of the display panel's outer surface, creating a unified aesthetic appearance. However, this curved geometry is only replicated on the support structure's inner surface, not transmitted to the circuit board, which remains flat and stress-free on the second support portion.
Data Source
AI summary
A display device includes a display panel including a display portion and a bending portion adjacent to the display portion, a circuit board spaced apart from the display portion in a first direction and connected to the bending portion, and a shape maintaining portion disposed between the display portion and the circuit board and including a first surface adjacent to the display portion and including a central portion convexly curved in a second direction opposite to the first direction and an edge portion which is flat and a second surface adjacent to the circuit board.