Backlight Assembly with Divided Sidewalls for Efficient LED Integration
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Solution Overview
Problem
The manufacturing cost of backlight assemblies using light emitting diodes as light sources is higher compared to those using cold cathode fluorescent lamps, and there is a need to improve display quality while reducing the number of parts in the assembly process.
Innovation Solution
A backlight assembly design featuring a light guide plate with a chamfered corner for a light incident surface, a light source unit adjacent to this surface, and a receiving container with divided sidewalls to accommodate the light guide plate and light source unit, allowing for efficient assembly and reduced part count.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a backlight assembly uses light emitting diodes as light sources, then lower power consumption and higher brightness are achieved, but manufacturing cost increases
Solution Approach 1:
The receiving container integrates multiple functions: it holds the light guide plate, accommodates the light source unit, and provides structural support for the entire backlight assembly. This consolidation of functions into a single component reduces the total number of parts and simplifies the assembly structure, thereby lowering manufacturing costs while maintaining LED backlight performance benefits
2Strength
If the receiving container has integrated sidewalls, then structural integrity is maintained, but assembly complexity increases
Solution Approach 1:
The receiving container's sidewalls are divided into first and second parts that can be separately assembled. This segmentation allows for easier assembly of the light guide plate and light source unit, as components can be installed before coupling the sidewall parts together. The divided structure maintains structural integrity when coupled while reducing assembly complexity during 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 manufacturing costs and improves display quality by optimizing the assembly process and light distribution, while maintaining the benefits of LED-based backlight assemblies such as lower power consumption and higher brightness.
Implementation Method 1
The light source unit is disposed adjacent to the light incident surface to provide light to the light guide plate through the light incident surface
Data Source
AI summary
In a display apparatus, a light guide plate includes a chamfered corner portion that defines a light incident surface. A light source unit is arranged adjacent to the light incident surface to provide the light to the light guide plate through the light incident surface. A display panel receives light from the light guide plate to display an image. A receiving container includes sidewalls and a bottom portion to accommodate the light guide plate and the light source unit. At least one sidewall adjacent to the corner portion is divided into a first part and a second part that may be coupled to or separated from each other. Thus, the light guide plate and the light source unit may be easily accommodated in the receiving container, thereby improving an assembling efficiency.