Backlight Module with Integrated Support Parts for Bendable Displays
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Solution Overview
Problem
Traditional liquid crystal display panel backlight modules have complex structures, leading to increased thickness, cost, and fragility, making them unsuitable for bending and reducing product yield due to potential damage to the light emitting parts.
Innovation Solution
A simplified backlight module design featuring a backplane with integrated support parts and an optical film, where the light emitting part directs light towards the optical film, omitting the middle frame, top cover, and light guide plate, allowing for a thinner, more flexible structure that alleviates pressure on the light emitting parts during bending.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a traditional backlight module structure is used, then the structural strength is improved, but the thickness increases and bending becomes difficult
Solution Approach 1:
The patent removes the middle frame, top cover, and light guide plate from the traditional backlight module structure, retaining only the essential backplane with integrated support parts and optical film. This extraction of non-essential components reduces thickness while maintaining structural strength through the integrated backplane design.
Solution Approach 2:
The support parts are integrated directly into the backplane structure, merging previously separate components (backplane and support parts) into a unified structure. This integration eliminates additional layers and fasteners, reducing overall thickness while maintaining structural strength.
2Strength
If a traditional backlight module structure is used, then the structural strength is improved, but the cost increases
Solution Approach 1:
By removing the middle frame, top cover, and light guide plate, the patent reduces the number of components that need to be manufactured, stored, and assembled. This component reduction directly lowers material costs, manufacturing costs, and assembly costs while maintaining essential structural strength.
Solution Approach 2:
The integration of support parts into the backplane reduces the total component count and simplifies the bill of materials. Fewer parts mean lower material costs, reduced inventory requirements, and simplified supply chain management, all contributing to cost reduction.
3Strength
If a traditional backlight module structure is used, then the structural strength is improved, but the light emitting part becomes easily damaged during bending
Solution Approach 1:
By removing the middle frame and top cover that create rigid constraints, the patent allows the backlight module to bend more flexibly without concentrating stress on the light emitting part. The simplified structure distributes mechanical stress more evenly, preventing damage during bending operations.
Solution Approach 2:
The patent employs a thin-film optical film that can flex with the backlight module during bending. This flexible film structure, combined with the removed rigid components, allows the assembly to bend without creating stress concentration points that would damage the light emitting part.
4Length of moving object
If a simplified backlight module structure is used, then the thickness is reduced and bending becomes easier, but the structural strength may be compromised
Solution Approach 1:
The support parts are merged into the backplane as an integrated structure, ensuring that structural strength is maintained despite the removal of other components. The integrated design allows for optimized load distribution and structural reinforcement at critical areas without adding overall thickness.
Solution Approach 2:
The backplane with integrated support parts likely uses composite material structures that provide high strength-to-thickness ratios. This allows the simplified structure to maintain adequate structural strength while achieving reduced thickness and improved bendability.
5Device complexity
If a simplified backlight module structure is used, then the cost is reduced, but the manufacturing precision requirements may increase
Solution Approach 1:
By integrating the support parts into the backplane, the patent reduces the number of separate components that need to be manufactured and assembled. This integration simplifies the manufacturing process and reduces assembly precision requirements, as there are fewer interfaces and fasteners to align and secure.
Data Source
AI summary
The present disclosure relates to the field of display technology and, in particular, to a backlight module and a display panel. The backlight module may include a backplane, an optical film, and a light emitting plate. The backplane includes a bottom plate, a first side plate, and a second side plate, where the first side plate and the second side plate are arranged at two opposite sides of the bottom plate in a first direction, and both have support parts protruding toward an inner side of the back board. The optical film is arranged on a side of the support part away from the bottom plate, and has two opposite ends supported on the support parts. The light emitting part is arranged on the bottom plate and positioned at a side of the support part facing the bottom plate, and a light emitting direction of the light emitting part is toward the optical film.