Curved Display Back Plate Mechanism for Uniform Resilience

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Solution Overview

Problem

Current curved surface display devices face challenges in manufacturing ease, resilience uniformity, and limited curvature variability, leading to poor product quality and restricted applications due to fixed bending radii and material density issues.

Innovation Solution

A display device featuring a back plate mechanism composed of flat support plates with adjustable included angles, enabled by actuation portions such as variable-length actuation elements, allowing for flexible curvature adjustment and uniform resilience, thereby forming a display screen with variable and uniform curvature.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a pre-bent support back plate is used to maintain display screen curvature, then the display screen can maintain a stable bending radius, but the manufacturing complexity and difficulty increase due to the need for precise pre-bending treatment

Engineering Contradiction:
Improvebending radius uniformityVSAvoidsupport back plate manufacturing
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The support back plate is divided into multiple flat support plates that can be independently manufactured and assembled. Each flat support plate is easier to manufacture with precise dimensions compared to a single pre-bent plate, and their collective arrangement achieves the desired curved support function while improving manufacturing ease and precision.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The support structure transitions from a fixed pre-bent plate to an adjustable arrangement of flat support plates. The flat support plates can be positioned at different angles and distances, allowing dynamic adjustment of the curvature to compensate for resilience variations and achieve precise bending radius control.

Inventive Principle:
Principle #15Dynamics

2Stability of the object's composition

If the support back plate is pre-bent to counteract display screen resilience, then the display module can maintain a stable bending radius, but the resilience uniformity deteriorates due to material density variations and pre-bending inconsistencies

Engineering Contradiction:
Improvebending radius stabilityVSAvoidresilience uniformity
Core Design Contradiction:
Stability of the object's compositionVSManufacturing precision

Solution Approach 1:

Instead of relying on uniform pre-bending of a single plate, the invention uses multiple flat support plates with locally optimized positions and orientations. Each support plate can be independently adjusted to compensate for local resilience variations in the display screen, achieving uniform curvature across the entire display surface.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The support system allows adjustment of multiple parameters including the angles between adjacent support plates, their distances from the display screen, and their positions. These parameter adjustments enable fine-tuning of the support characteristics to match the actual resilience distribution of the display screen, improving curvature uniformity.

Inventive Principle:
Principle #35Parameter changes

3Device complexity

If a fixed bending radius is used in the curved surface display device, then the structure is simplified, but the adaptability and application range are limited

Engineering Contradiction:
Improvecurvature control mechanismVSAvoidcurvature variability
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The support back plate mechanism is designed to be adjustable rather than fixed. The flat support plates can be repositioned and reoriented to create different curvature configurations, enabling the display device to adapt to various application requirements while maintaining a relatively simple overall structure.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The same set of flat support plates can be configured to provide different curvature radii by adjusting their arrangement. This multi-functional capability allows a single support mechanism to serve multiple purposes and accommodate different application scenarios without requiring separate fixed-curvature components.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS10285289B2Display device
Publication Date: 2019.05.07 BOE TECHNOLOGY GROUP CO LTD
  • US10285289B2 patent drawing
  • US10285289B2 patent drawing
  • US10285289B2 patent drawing

AI summary

The present invention belongs to the field of display technology, and particularly relates to a display device. The display device includes a display screen and a back plate mechanism provided on the non-display side of the display screen. The back plate mechanism includes a plurality of flat support plates. Any two adjacent flat support plates are connected with an included angle formed therebetween. The display screen forms a curved surface structure while being supported by the flat support plates. The display device is a curved surface display device having good curvature uniformity.