Backlight Unit Connection Members for Uniform Light Distribution
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Solution Overview
Problem
Existing backlight technologies face challenges in easy connection and integration with light-emitting devices, particularly in display devices, which affects optical efficiency and durability.
Innovation Solution
A backlight unit design that includes a bottom cover, a light-emitting device package module, a reflective plate, a light-guide plate, an optical sheet, and connection members, allowing for improved optical efficiency and easy assembly by guiding and diffusing light uniformly across a liquid crystal display panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a backlight unit is integrated with a light-emitting device, then optical efficiency is improved, but connection difficulty increases
Solution Approach 1:
The backlight unit is divided into separate components (light-emitting device, bottom cover, optical members) that can be independently manufactured and then assembled together using connection members, allowing for easy connection while maintaining optical efficiency
Solution Approach 2:
Connection members act as intermediaries between the light-emitting device and the backlight unit components, facilitating easy assembly and disassembly without compromising the optical performance of the integrated system
2Manufacturing precision
If multiple optical members are added to guide and diffuse light, then uniform light distribution is improved, but device complexity increases
Solution Approach 1:
Multiple optical members (reflective plate, light-guide plate, optical sheet) are combined into a single integrated backlight unit assembly that works together to achieve uniform light distribution, reducing the overall complexity compared to separate independent systems
Solution Approach 2:
The optical members are designed to perform multiple functions simultaneously (guiding light, diffusing light, reflecting light) within a compact structure, achieving uniform light distribution without proportionally increasing device complexity
3Ease of manufacture
If the backlight unit is designed for easy assembly, then manufacturing process is improved, but structural stability may worsen
Solution Approach 1:
Connection members are pre-designed with specific geometries and attachment methods that enable easy assembly during manufacturing while ensuring stable structural connection once assembled, balancing manufacturing ease with structural integrity
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 design enhances optical efficiency and durability by ensuring uniform light distribution and easy connection of the backlight unit with the display device, improving handling and manufacturing processes.
Implementation Method 1
a reflective plate, a light-guide plate, an optical sheet... guiding and diffusing light uniformly
Implementation Method 2
a light-guide plate... guiding and diffusing light uniformly
Implementation Method 3
an optical sheet... guiding and diffusing light uniformly
Data Source
Figure 1~2
Figure 3A~3B
Figure 4A~4B
AI summary
Provided is a backlight unit including, a bracket on which a light emitting device array is disposed, and a bottom cover on which the bracket is disposed, the bottom cover supporting an optical member, wherein a fixing member to removably fix is provided on the bottom cover, the side and top of the fixing member are flat and the cross-sectional area of a lower part of the fixing member is equal to or less than the cross-sectional area of un upper part of the fixing member.