Variable Curved Bracket for Display Screen
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Solution Overview
Problem
Existing liquid crystal display televisions (LCD TVs) have fixed screen curvature, which cannot be adjusted to accommodate different viewing needs, leading to asymmetrical viewing angles and suboptimal visual experience for multiple viewers.
Innovation Solution
A variable curved surface bracket structure with a base, fixed sheet, and moving sheets hinged on both sides, driven by a pushrod mechanism and linkage strut assembly, allowing the curvature of the display screen to be adjusted between flat and curved states to suit various viewing requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the screen curvature is fixed, then the structure is simple and stable, but it cannot accommodate different viewing needs and creates asymmetrical viewing angles
Solution Approach 1:
The bracket structure transitions from a static fixed-curvature design to a dynamic adjustable design. The moving sheets (22) can rotate relative to the fixed sheet (21) around hinge axes, enabling the bracket to adapt its curvature to match different screen configurations and viewing requirements, thus resolving the contradiction between adaptability and structural simplicity.
Solution Approach 2:
The bracket is divided into multiple independent components: a fixed sheet (21) and multiple moving sheets (22) that can be independently positioned. This segmentation allows each component to be optimized for stability while collectively providing adjustable curvature, addressing both structural simplicity and viewing angle adaptability.
2Adaptability or versatility
If the screen curvature is adjusted to suit multiple viewers, then viewing experience improves, but the bracket structure becomes more complex
Solution Approach 1:
Multiple functional components are merged into integrated assemblies. The linkage mechanism combines connecting rods (41), struts (42), rod bushes (43), and cam wheels (44) into a unified system that collectively controls the movement of multiple sheets. This merging reduces the overall system complexity compared to having separate adjustment mechanisms for each sheet.
Solution Approach 2:
The cam wheels (44) act as intermediary elements between the driving mechanism and the moving sheets. They convert rotational motion into the appropriate movement patterns for adjusting sheet positions, simplifying the control mechanism while enabling precise curvature adjustment for different viewing configurations.
3Adaptability or versatility
If moving sheets are added to enable curvature adjustment, then viewing angle symmetry improves, but the number of parts increases
Solution Approach 1:
Each moving sheet (22) serves multiple functions: it provides a mounting surface for the display, acts as a structural support element, and functions as a movable joint in the linkage mechanism. The connecting rods (41) and struts (42) similarly serve both structural and adjustment functions, reducing the need for additional dedicated components.
Solution Approach 2:
The hinge connections between sheets are designed with specific local properties - the hinge axes are positioned and oriented to optimize the movement pattern for achieving symmetrical viewing angles. This localized optimization allows the system to achieve viewing symmetry without requiring complex global adjustments or additional components.
Data Source
AI summary
A variable curved surface bracket structure is provided, including a base and a bracket, and the bracket is in contact with the back of the display screen; the bracket includes a fixed sheet and moving sheets respectively hinged on two sides of the fixed sheet. The variable curved surface bracket structure further includes a moving mechanism, disposed on the base and drivingly connected to the moving sheets to make the moving sheets rotate forward or backward relative to the fixed sheet. The moving mechanism includes a pushrod structure arranged on the base and includes a retractable pushrod and a driving device drivingly connected to the pushrod; at least a linkage strut assembly including at least a connecting rod and at least a strut. The disclosure allows the curvature of the display screen in contact with the bracket to be adjustable, curved or planar, to meet different viewing needs.