LCD Main Support Integrating Panel Guide and Lower Cover
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Solution Overview
Problem
The assembly process of liquid crystal display (LCD) devices is complicated and costly due to the need for an independently manufactured panel guide, which increases manufacturing expenses and hinders the achievement of a slim profile.
Innovation Solution
A main support structure with first, second, and third movement preventing members is used to integrate the functions of a panel guide and lower cover, allowing the liquid crystal panel and backlight unit to be assembled directly within it, eliminating the need for a separate panel guide and reducing manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an independently manufactured panel guide is used to secure the liquid crystal panel, then the panel can be securely assembled, but the assembly process becomes complicated and manufacturing costs increase
Solution Approach 1:
The patent combines the panel guide and lower cover into a single integrated component called the main support. The main support includes a body portion that serves as the lower cover and protruding portions that function as the panel guide, eliminating the need for separate components and simplifying the assembly process while maintaining secure panel assembly
Solution Approach 2:
The main support serves multiple functions simultaneously: it acts as the lower cover to enclose the backlight unit, serves as the panel guide to secure the liquid crystal panel through its protruding portions, and provides structural support. This multi-functionality reduces the number of components and assembly steps
2Reliability
If an independently manufactured panel guide is used, then the liquid crystal panel can be secured, but manufacturing costs increase
Solution Approach 1:
By merging the panel guide and lower cover into the main support component, the patent reduces the total number of parts that need to be manufactured, stored, and assembled. This integration decreases manufacturing costs while maintaining the panel securing capability through the protruding portions of the main support
3Reliability
If multiple separate components (panel guide and lower cover) are used, then each component can be optimized, but the device thickness increases
Solution Approach 1:
The integration of the panel guide and lower cover into the main support eliminates the need for additional thickness that would be required to accommodate separate components. The protruding portions are formed as integral parts of the main support body, maintaining optimized component functionality while achieving a thinner overall device profile
Data Source
AI summary
A liquid crystal display device includes a liquid crystal panel; a backlight unit to provide a light to the liquid crystal panel, the backlight unit includes an optical sheet and a light guide plate; and a main support to receive the liquid crystal panel and the backlight unit together, the main support having first and second movement preventing members to prevent shifting of the optical sheet and the light guide plate of the backlight unit in a direction on a plane, and a third movement preventing member to prevent shifting of the light guide plate of the backlight unit in a direction normal to the plane.