Mini-LED Backlight Module Magnetic Lamp Plate Alignment
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Solution Overview
Problem
The existing manufacturing technology for Mini-LED lamp plates is limited, making it challenging to produce large-size Mini-LED TVs, which can affect brightness and viewing angle performance if not properly managed.
Innovation Solution
A backlight module design featuring a stack arrangement of a back plate, lamp plates, a diffuser plate, and optical films, with magnetic attraction parts to securely attach and align the lamp plates, ensuring uniform light distribution and reducing gaps between them.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If large size Mini-LED lamp plate is manufactured, then the display size is increased, but the brightness and viewing angle performance deteriorate
Solution Approach 1:
The lamp plate is divided into multiple separate lamp plate components that are magnetically attracted to the back plate. Each component can be independently manufactured with precise dimensions, and when assembled, they form a large-area lamp plate structure. This segmentation allows maintaining high brightness performance in each component while achieving large overall display size.
Solution Approach 2:
Magnetic attraction parts are strategically positioned at specific locations on the back plate to create localized attachment points for the lamp plate components. This ensures uniform distribution of magnetic force across the large-area structure, maintaining consistent brightness and viewing angle performance throughout the entire display area.
2Area of stationary object
If large size Mini-LED lamp plate is manufactured, then the display size is increased, but the viewing angle performance deteriorates
Solution Approach 1:
Dividing the large lamp plate into smaller manageable components enables precise manufacturing control for each segment. Each component can be manufactured with optimized viewing angle characteristics, and when assembled using magnetic attraction, they collectively provide uniform viewing angle performance across the entire large display area.
Solution Approach 2:
Traditional mechanical fastening methods are replaced with magnetic attraction to hold the lamp plate components. This substitution eliminates the need for complex mechanical assemblies that could interfere with light emission and viewing angle, while providing secure attachment that maintains component positioning for optimal viewing performance.
3Stability of the object's composition
If magnetic attraction parts are added to attach lamp plates, then the lamp plate stability is improved, but the device complexity increases
Solution Approach 1:
Complex mechanical fastening systems are replaced with magnetic attraction parts integrated into the back plate. The magnetic fields provide stable attachment of lamp plate components without requiring additional mechanical structures, screws, or clips, thus improving stability while minimizing structural complexity.
Solution Approach 2:
The magnetic attraction parts serve multiple functions: they attach the lamp plate components to the back plate, provide precise positioning, and enable easy assembly and disassembly. This multi-functionality reduces the need for separate components for each function, thereby reducing overall device complexity while maintaining high stability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design enhances the brightness and viewing angle performance of large-size Mini-LED TVs by providing a uniform light source and preventing lamp plate deformation, while allowing for detachable and expandable configurations.
Implementation Method 1
at least two magnetic attraction parts disposed on a back side of the lamp plate, and the at least two magnetic attraction parts being attracted to a lamp-plate mounting side of the back plate
Data Source
AI summary
A backlight module includes a back plate, at least two lamp plates, a diffuser plate and a plurality of layers of optical film provided in a form of a stack. The at least two lamp plates are disposed on one side of the back plate. The diffuser plate is disposed on one side of the lamp plate away from the back plate. The plurality of layers of optical film are disposed on one side of the diffuser plate away from the lamp plate. The backlight module further includes at least two magnetic attraction parts which are disposed on a back side of the lamp plate, and are attracted to a lamp-plate mounting side of the back plate.