Curved Backplane Stepwise Structure for LCD Assembly
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Solution Overview
Problem
Conventional liquid crystal display devices with curved designs face manufacturing challenges due to complex and costly structures, particularly in supporting a curved backlight module, which complicates the assembly and increases costs.
Innovation Solution
A backplane with a stepwise structure and curved mounting section is designed to securely support a circuit board and light guide plate, featuring reinforcement ribs for enhanced strength and simplicity in manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a curved steel frame is used to achieve forced bending of the backlight module, then the desired curvature is obtained, but the manufacturing cost increases and the structure becomes complicated
Solution Approach 1:
The backplane is divided into multiple stepped sections with different heights, creating a stepwise structure that forms the curved surface. This segmentation replaces the need for a complex curved steel frame while achieving the desired curvature through the stepped configuration of the backplane itself.
Solution Approach 2:
The invention transitions from a two-dimensional curved surface to a three-dimensional stepwise structure. By adding vertical height variations to the backplane, the curved shape is achieved through multiple levels rather than a continuous curve, simplifying the overall structure and eliminating the need for additional curved framing components.
2Shape
If a curved steel frame is used to achieve forced bending of the backlight module, then the desired curvature is obtained, but the manufacturing cost increases
Solution Approach 1:
The backplane is divided into multiple stepped sections with different heights, creating a stepwise structure that forms the curved surface. This segmentation replaces the need for a complex curved steel frame while achieving the desired curvature through the stepped configuration of the backplane itself.
Solution Approach 2:
The invention uses a simple stepwise backplane structure made from standard materials rather than expensive custom-formed curved steel frames. The stepped design can be manufactured using conventional fabrication processes, significantly reducing manufacturing costs while achieving the same functional curvature.
3Shape
If a stepwise backplane structure is used to support the light guide plate, then the curvature is achieved, but the circuit board cannot be securely fixed and assembly becomes difficult
Solution Approach 1:
A curved mounting section is introduced as an intermediary component on the backplane, providing a dedicated curved surface for mounting the circuit board. This mounting section acts as a mediator between the stepwise structure and the circuit board, enabling secure fixation while maintaining the overall curved configuration and simplifying assembly operations.
Data Source
AI summary
The present invention provides a backplane and a backlight module and a liquid crystal display device using the backplane. The backplane includes: a bottom plate (2) and multiple side plates (4) connected to the bottom plate (2). The bottom plate (2) includes a base section (22) and a mounting section (24) connected to a lateral edge of the base section (22). The base section (22) has two ends that are each provided with a stepwise structure (222) for mounting a curved light guide plate to an inner side thereof. The mounting sections (24) has an outside surface that is curved for mounting a circuit board. The base section (22) has an outside surface on which first reinforcement ribs (226) and second reinforcement ribs (228) perpendicularly connected thereto are formed. The backplane and the backlight module and the liquid crystal display device using the backplane of the present invention help make the backplane simple in structure and easy to manufacture and simplifies the assembling operation and reduces the manufacturing cost.