Curved Light Guide Plate Magnetic Fixing
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Solution Overview
Problem
Existing display devices with curved designs face challenges in easily assembling and maintaining the curved shape of their backlight units, which can lead to deformation and damage of the light guide plates.
Innovation Solution
A backlight unit design featuring a light guide plate with a curved shape, supported by a bottom chassis and a support frame with magnetic members that securely fix the plate to maintain its curvature, along with a method of manufacturing that includes using a mold frame and top chassis to ensure the display panel is curved and aligned with the light guide plate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a curved light guide plate is used to provide three-dimensional visual effect, then the display quality and user immersion are improved, but the light guide plate is prone to deformation and damage during assembly and maintenance
Solution Approach 1:
The support frame is divided into multiple segments that can be assembled together, with each segment containing magnetic members positioned at specific locations. This segmentation allows the curved light guide plate to be supported at multiple discrete points, preventing deformation while enabling easier assembly and maintenance of individual segments.
Solution Approach 2:
Traditional mechanical fastening methods (screws, clips, or adhesives) are replaced with magnetic members that use magnetic attraction forces to secure the light guide plate to the support frame. This substitution provides a non-contact fixing mechanism that maintains the curved shape without applying concentrated mechanical stresses that could cause deformation or damage.
2Strength
If magnetic members are added to secure the curved light guide plate, then the structural integrity is improved, but the device complexity increases
Solution Approach 1:
The magnetic members serve multiple functions simultaneously: they secure the curved light guide plate to the support frame, maintain the curved shape through distributed magnetic attraction, and enable easy assembly and disassembly without additional fastening mechanisms. This multi-functionality reduces the need for separate components, thereby limiting the increase in device complexity.
3Stability of the object's composition
If the light guide plate is securely fixed to maintain curvature, then deformation is prevented, but the assembly process becomes more difficult
Solution Approach 1:
The magnetic fixing mechanism eliminates the need for complex mechanical fastening systems such as screws, bolts, or adhesives that would be required to securely fix the curved light guide plate. The magnetic members provide sufficient holding force to maintain curvature while allowing for simple assembly through magnetic attraction, significantly improving assembly ease.
Solution Approach 2:
The magnetic members automatically align and secure the light guide plate to the support frame through magnetic attraction without requiring additional alignment tools or complex assembly procedures. The curved shape is self-maintained through the distributed magnetic forces, enabling both secure fixation and easy assembly operations.
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
The solution allows for easy assembly and maintenance of the curved display device, preventing deformation and damage to the light guide plate while ensuring the backlight unit maintains its intended shape, enhancing the display's structural integrity and visual immersion.
Implementation Method 1
a first magnetic member disposed at at least one edge of the upper surface of the support frame, and a second magnetic member disposed at at least one edge of the opposite surface of the light guide plate and facing the first magnetic member
Data Source
AI summary
A display device includes a curved display panel, a light source unit, a curved light guide plate, a support frame disposed under the light guide plate and including a curved upper surface, a first magnetic member disposed at at least one edge of the upper surface of the support frame, and a second magnetic member disposed at at least one edge of a surface facing the upper surface of the light guide plate and facing the first magnetic member.