LCD Backlight Supporting Member for Luminance Uniformity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In liquid crystal display (LCD) devices, the lack of a secure supporting mechanism for light sources in the backlight assembly leads to inconsistent spacing between the diffusion plate and the light sources, resulting in deteriorated image display quality due to light leakage and uneven luminance.
Innovation Solution
A supporting member with a base substrate, lamp clips, a supporting part, and fixing clips that securely hold and position the light sources relative to the diffusion plate, while a light leakage blocking member prevents light leakage through combining holes, maintaining consistent spacing and improving luminance uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the supporting member does not securely hold the lamp, then the structure is simple and easy to assemble, but the lamp drifts in the receiving container causing inconsistent distance between the diffusion plate and the lamp, thereby deteriorating image display quality
Solution Approach 1:
The supporting member is divided into multiple functional components: a base substrate providing support, lamp clips holding the lamp, a supporting part positioning the diffusion plate, and fixing clips securing the assembly to the receiving container. This segmentation allows each component to perform its specific function while maintaining precise spacing without requiring an overly complex integrated structure.
Solution Approach 2:
The supporting member acts as an intermediary component between the lamp, diffusion plate, and receiving container. It mediates the spatial relationship among these elements, ensuring consistent distance maintenance through its structured design with protrusions and clips that interface with each component.
2Illumination intensity
If light sources are positioned close to the diffusion plate to improve luminance, then brightness increases, but light leakage occurs reducing image display quality
Solution Approach 1:
The supporting member serves as an intermediary structure that enables optimal positioning of the lamp relative to the diffusion plate. By providing a fixed mounting structure with specific spacing, it allows the light source to be positioned close enough for high luminance while preventing light leakage through controlled geometry and light leakage blocking protrusions.
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 ensures consistent spacing between light sources and the diffusion plate, enhancing image display quality and luminance uniformity by blocking light leakage, thereby improving the overall performance of the LCD device.
Implementation Method 1
a light leakage blocking member interposed between the supporting member and the receiving container to block light leakage through the combining hole
Data Source
AI summary
A supporting member for a liquid crystal display device comprises a base substrate, a lamp clip protruded from the base substrate in a first direction to hold a lamp that generates light, a supporting part protruded from the base substrate in the first direction to support a diffusion member that diffuses the light generated from the lamp, and a fixing clip protruded from the base substrate in a second direction substantially opposite to the first direction, wherein the fixing clip combines with a receiving container.