Backlight Module Reflective Sheet Structure
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Solution Overview
Problem
The existing backlight modules for liquid crystal displays are thick due to the need for a glue frame, leading to increased manufacturing costs and complex assembly processes, which hinder the development of thinner, more efficient display designs.
Innovation Solution
A backlight module design that eliminates the glue frame by using a reflective sheet with a hollow display region, side wall, and reflective region to form an accommodation space, where the light guide plate and optical film assembly are stacked, allowing for easier assembly and reduced thickness through the use of fold lines and adhesives like double-side or single-side tape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a glue frame is used to fix the light guide plate and optical film assembly, then the structural stability is improved, but the thickness of the backlight module increases
Solution Approach 1:
The reflective sheet is merged with the light guide plate to form an integrated structure. The reflective sheet includes a reflective region and a side wall that extends from the edge of the reflective region, eliminating the need for a separate glue frame while maintaining structural stability through the integrated design
Solution Approach 2:
The reflective sheet serves multiple functions: it provides light reflection in the reflective region and simultaneously acts as a structural support element through its side wall that extends to the light guide plate, replacing the traditional glue frame's support function
2Stability of the object's composition
If a glue frame is used to assemble the components, then the structural stability is improved, but the assembly process becomes more complicated
Solution Approach 1:
The reflective sheet and light guide plate are merged into a single integrated component, reducing the number of separate parts that need to be assembled and eliminating the complex glue frame assembly process while maintaining structural stability
3Stability of the object's composition
If a glue frame is used in the backlight module, then the structural stability is improved, but the manufacture cost increases
Solution Approach 1:
The reflective sheet and light guide plate are combined into one integrated component, reducing the total number of parts and assembly steps, which lowers manufacturing costs while the side wall extension maintains structural stability
Solution Approach 2:
The reflective sheet performs multiple functions including light reflection and structural support, eliminating the need for separate support components like the glue frame, thereby reducing material costs and simplifying manufacturing
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 reduces the overall thickness of the backlight module, simplifies the assembly process, decreases manufacturing costs, and enhances light usage and display quality by eliminating the need for a glue frame and simplifying the structure.
Implementation Method 1
the reflective sheet comprises a hollow display region, a side wall, a reflective region
Implementation Method 2
adhesives like double-side or single-side tape
Data Source
AI summary
The present invention provides a backlight module, comprising an optical film assembly, a light guide plate, a reflector sheet, and the reflective sheet comprises a hollow display region, a side wall, a reflective region, and the display region is oppositely located to the reflective region, and the side wall is connected between the display region and the reflective region to form an accommodation space, and the light guide plate and the optical film assembly stack up together inside the accommodation space, and the light guide plate is located between the reflective region and the optical film assembly, and the optical film assembly is located between the light guide plate and the display region. By extending the reflective sheet into multiple regions, the reflective sheet can be bent to fix the light guide plate and the optical film assembly to eliminate the technical solution of the glue frame.