Backlight Module Frame Reflection Area
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Solution Overview
Problem
Conventional liquid crystal display backlight modules are costly and time-consuming to manufacture due to the use of expensive and heavy metal lampshades, which hinder production throughput and display quality.
Innovation Solution
A backlight module design featuring a first frame with a high-reflectivity material and reflection area that reflects light directly to a light guide plate, eliminating the need for a lampshade, and optionally including a second frame and optical films for enhanced light reflection and display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a metal lampshade is used to reflect light, then light reflection performance is improved, but manufacturing cost increases and assembly time increases
Solution Approach 1:
The patent merges the lampshade function into the first frame structure by providing a reflection area on the inner surface of the first frame. This integration eliminates the need for a separate lampshade component, reducing assembly steps and time while maintaining light reflection performance.
Solution Approach 2:
The patent extracts the lampshade function from the conventional separate component and relocates it to the first frame structure. By taking out the independent lampshade and incorporating its reflective function into the frame, the design simplifies the overall structure and reduces assembly complexity.
2Illumination intensity
If a metal lampshade is used to reflect light, then light reflection performance is improved, but manufacturing cost increases
Solution Approach 1:
The patent combines the lampshade function with the first frame, eliminating the need for separate metal lampshade components. This merging reduces material costs and manufacturing complexity while achieving the same light reflection effect through the reflection area on the frame's inner surface.
Solution Approach 2:
The patent replaces expensive metal lampshade components with a cost-effective reflection area integrated into the first frame. This substitution uses simpler, less expensive materials and structures to achieve the necessary optical function, thereby reducing manufacturing cost.
3Illumination intensity
If a metal lampshade is used to reflect light, then light reflection performance is improved, but weight increases
Solution Approach 1:
The patent merges the lampshade function into the first frame structure, eliminating the need for separate metal lampshade components. This integration significantly reduces the overall weight of the backlight module while maintaining effective light reflection performance through the frame's reflection area.
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 manufacturing costs, assembly time, and weight while improving display quality by efficiently reflecting light without a lampshade and enhancing the reliability and reuse rate of the backlight module.
Implementation Method 1
The inner surface of the first frame has at least a first reflection area... the first reflection area is suitable for reflecting the light emitted from the light source to the light incident surface
Data Source
AI summary
A backlight module including a first frame, a light guide plate, and a light source is provided. The inner surface of the first frame has at least a first reflection area. In addition, the light guide plate is disposed in the first frame and located beside the first reflection area, and the light guide plate has a light incident surface. Moreover, the light source is disposed in the first frame and between the first reflection area and the light incident surface. The first reflection area is suitable for reflecting a part of the light emitted from the light source to the light incident surface. A liquid crystal display using the backlight module is also provided.