LCD Backlight Support Main Alignment Hole Geometry
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Solution Overview
Problem
The existing liquid crystal display (LCD) devices have a wider bezel region due to the increased size of the support main, which results from the formation of alignment holes for accurate coupling with the liquid crystal panel, leading to an overall larger device size.
Innovation Solution
The proposed solution involves modifying the position and shape of the alignment hole on the support main, such as forming it with a circular shape centered apart from the vertex and extending an additional portion inward, or creating an angled corner with a semicircular alignment hole, to reduce the size of the support main and bezel region, while maintaining alignment accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If alignment holes are formed on the support main for accurate coupling with the liquid crystal panel, then alignment precision is improved, but the size of the support main increases
Solution Approach 1:
The alignment hole is positioned at the corner of the support main rather than on the side, utilizing the corner dimension to achieve alignment functionality without increasing the main body dimensions of the support structure
Solution Approach 2:
The alignment hole is formed only at the corner region of the support main where it interfaces with the liquid crystal panel, concentrating the alignment function in a localized area rather than requiring extended dimensions across the entire support main
2Manufacturing precision
If the support main size is increased to accommodate alignment holes, then alignment accuracy is improved, but the bezel region width increases
Solution Approach 1:
The alignment hole is repositioned to the corner of the support main, utilizing the corner geometry to achieve alignment accuracy without extending the bezel region width, as corners are formed by the intersection of sides rather than requiring additional side length
3Area of stationary object
If the support main size is reduced to minimize bezel region, then device size is minimized, but alignment accuracy may be compromised
Solution Approach 1:
The alignment hole is positioned at the corner of the support main, utilizing the corner dimension to maintain alignment accuracy while minimizing the overall support main size and bezel region area
Solution Approach 2:
The alignment function is concentrated in the corner region of the support main, allowing the rest of the support main to be minimized in size while preserving alignment accuracy through the strategically positioned alignment hole
Data Source
AI summary
A backlight unit for a liquid crystal display (LCD) device is capable of allowing a narrower bezel by reducing a size of a support main in the liquid crystal display (LCD) device. The backlight unit includes the support main in which an alignment hole is formed on at least one side.