Curved Display Backlight Module with Detachable Arc Fixing Components
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Solution Overview
Problem
Current methods for manufacturing curved backplanes in display devices face challenges such as curvature accuracy deviations, thick and heavy structures due to mold size limitations, and inability to change curvature once molded, leading to unstable and inflexible designs.
Innovation Solution
A backlight module with a backplane and arc fixing components that allow for detachable curvature adjustment, featuring a backplane body with arc sides and arc fixing components that form a mounting groove for the backlight, enabling precise curvature control and replacement of arc fixing components for different curvatures, thus achieving a thinner and more flexible design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a mold is used to integrally form the curved backplane, then the curvature can be formed in one piece, but the thickness of the backplane becomes too large due to mold size limitations
Solution Approach 1:
The backplane is divided into a flat backplane body and separate arc fixing components. The arc fixing components are detachably installed on the backplane body to define the curvature, rather than forming the entire curved structure in one integral piece. This segmentation allows the backplane body to remain thin while achieving stable curvature through the attached arc components.
2Manufacturing precision
If a mold is used to integrally form the curved backplane, then the curvature is fixed, but the curvature cannot be changed once molded
Solution Approach 1:
The arc fixing components are designed to be detachably installed on the backplane body, enabling the curvature to be dynamically adjusted. Different arc fixing components with different curvatures can be attached or detached as needed, allowing the same backplane body to adapt to different curvature requirements while maintaining manufacturing precision through standardized connection structures.
3Length of moving object
If the backplane is bent in multiple sections and spliced, then the thickness can be reduced, but seams are produced resulting in deviations in curvature accuracy
Solution Approach 1:
Instead of bending and splicing the backplane body itself into multiple sections, the invention segments the curvature-defining function into separate arc fixing components that attach to a flat backplane body. This avoids creating seams in the backplane structure while still achieving the desired curvature, thereby maintaining both thinness and curvature accuracy.
4Length of moving object
If the backplane is bent in multiple sections and spliced, then processing becomes difficult, but the thickness can be controlled
Solution Approach 1:
The manufacturing process is simplified by producing a flat backplane body through standard processing, then separately manufacturing arc fixing components that define the curvature. These components are detachably assembled onto the backplane body, avoiding the difficulty of bending and splicing the backplane itself while maintaining controlled thickness.
Data Source
AI summary
Disclosed are a backlight module and a curved display device. The backlight module includes a backplane and a backlight. The backplane includes a backplane body and two arc fixing components. The backplane body is provided with two opposite arc sides and each arc fixing component is correspondingly detachably installed at each arc side to restrict a curvature of the backplane body. A mounting groove is formed by the cooperative enclosure of two arc fixing components and an inner surface of the backplane body. The backlight is provided into the mounting groove.