Curved Backlight Unit with Cambered Positioning
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Solution Overview
Problem
The production of curved backlight units for displays is complex and costly due to the existing methods of forming and assembling elements, which lack efficiency and increase production costs.
Innovation Solution
A curved backlight unit design featuring a light guide plate with cambered surfaces and cambered positioning pieces that are fixedly connected to backplates, ensuring structural stability and consistency in curvature, thereby simplifying the manufacturing process and reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional methods of forming and assembling elements are used to produce curved backlight units, then the structural integrity can be maintained, but the production process becomes complex and costly
Solution Approach 1:
The curved backlight unit is divided into multiple modular elements (light guide plates, diffusion plates, reflection plates, etc.) that can be independently formed and then assembled together using connection structures such as engagement members and positioning structures. This segmentation allows each element to be manufactured separately with standard processes while maintaining the overall curved structure through precise modular assembly.
2Stability of the object's composition
If traditional methods of forming and assembling elements are used to produce curved backlight units, then the structural stability can be ensured, but the manufacturing cost increases
Solution Approach 1:
Connection structures such as engagement members and positioning structures are pre-integrated into the modular elements during their formation process. This preliminary action ensures that when the elements are assembled, the structural stability is automatically ensured through the pre-configured connection mechanisms, eliminating the need for complex post-assembly operations and reducing manufacturing costs.
3Productivity
If modular elements are used to construct the curved backlight unit, then the manufacturing efficiency can be improved, but the device complexity increases
Solution Approach 1:
The engagement members and positioning structures are designed with universal features that can be applied across different modular elements. For example, the engagement members can connect multiple types of plates (light guide, diffusion, reflection) using the same connection mechanism, and the positioning structures provide standardized alignment features. This universality simplifies the assembly process and reduces the complexity of the overall assembly structure while maintaining high manufacturing efficiency.
Data Source
Figure 1a~1c
Figure 2~3b
Figure 3c~4
AI summary
A curved backlight unit, a display device and a manufacturing method are disclosed. The curved backlight unit includes a light guide plate (LGP) (1), one or more cambered positioning pieces (4). The LGP (1) is a curved LGP (1) formed by extending from a center position of the LGP to both sides along a first direction and includes an inner cambered surface (12) and an outer cambered surface (11). A second direction, perpendicular to the first direction, in the inner cambered surface (12) or the outer cambered surface (11) of the LGP (1) is a linear direction. At least the center position of the LGP (1) and at least one position on each side of the center portion are fixedly connected with a cambered structure of at least a same cambered positioning piece (4); and a bending direction of the cambered surfaces of the LGP (1) is consistent with a bending direction of the cambered structure of the cambered positioning piece (4).