Display Backplate Rib Layout for Corner Deformation Resistance

Solution Overview

Problem

Large-sized flat-panel television backplates face deformation and instability issues, particularly at corners, due to the complexity and high cost of traditional stiffening methods, which fail to adequately address curvature and structural reliability.

Innovation Solution

A backplate design featuring a stiffener assembly with first and second inclined ribs that form a cross pattern, surrounding triangle areas and forming a closed quadrilateral at the center, enhancing deformation resistance and structural reliability while maintaining low costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If traditional crisscrossed stiffeners or extra braces are added on the backplane surface, then the strength and stuffiness of the backplane is improved, but the deformation problem especially in corners cannot be solved very well and the structure becomes more complicated

Engineering Contradiction:

Improvebackplane strengthVSAvoidcorner deformation resistance

Core Design Contradiction:

StrengthVSReliability

Solution Approach 1:

The patent applies local quality by positioning stiffener ribs at specific locations - particularly at corners and along edges - rather than uniform distribution. The first stiffener ribs extend from corners toward the center, and second stiffener ribs connect midpoints of adjacent sides, creating localized reinforcement where deformation stress is highest. This targeted approach improves corner stability without requiring complete surface coverage.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The stiffener assembly is segmented into multiple functional components: first stiffener ribs extending from corners, second stiffener ribs connecting side midpoints, and optional third stiffener ribs forming central patterns. This segmentation allows each rib group to address specific deformation modes - corner ribs handle corner stress while edge ribs handle side stability - creating a coordinated reinforcement system.

Inventive Principle:

Principle #1Segmentation

2Strength

If traditional crisscrossed stiffeners or extra braces are added on the backplane surface, then the strength and stuffiness of the backplane is improved, but extra cost is needed and the structure becomes more complicated

Engineering Contradiction:

Improvebackplane strengthVSAvoidstiffener structure complexity

Core Design Contradiction:

StrengthVSDevice complexity

Solution Approach 1:

The stiffener assembly is segmented into multiple functional components: first stiffener ribs extending from corners, second stiffener ribs connecting side midpoints, and optional third stiffener ribs forming central patterns. This segmentation allows each rib group to address specific deformation modes - corner ribs handle corner stress while edge ribs handle side stability - creating a coordinated reinforcement system.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent implements partial action by providing only the essential stiffener ribs needed for corner and edge stability, rather than complete surface coverage. The first and second stiffener ribs constitute the minimum effective configuration, with third ribs forming a optional enhanced pattern. This partial approach achieves sufficient reinforcement without the excessive complexity of full crisscross patterns.

Inventive Principle:

Principle #16Partial or excessive action

3Area of stationary object

If the backplane is large in size, then the display area is increased, but the backplane becomes deformed and unstable in curvature

Engineering Contradiction:

Improvebackplane areaVSAvoidcurvature stability

Core Design Contradiction:

Area of stationary objectVSStability of the object's composition

Solution Approach 1:

The patent applies local quality by positioning stiffener ribs at specific locations - particularly at corners and along edges - rather than uniform distribution. The first stiffener ribs extend from corners toward the center, and second stiffener ribs connect midpoints of adjacent sides, creating localized reinforcement where deformation stress is highest. This targeted approach improves corner stability without requiring complete surface coverage.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS9933642B2Backplate for a rear surface of a display

Publication Date: 2018.04.03 TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO LTD

AI summary

A backplate for a rear surface of a display comprises a backplate main body and a stiffener assembly disposed on the surface of the backplate main body, the stiffener assembly comprises a first inclined rib extending from each corner of the backplate main body toward the center and a second inclined rib surrounding triangle areas with every corners; wherein, the first inclined rib sets up a cross relative to the nearest second inclined rib. The surface of the backplate main body comprises a stiffener assembly with a plurality of stiffener ribs, a first inclined rib extending from each corner toward the center, and a second inclined rib disposed at every corners.