Display Apparatus With Integrated Plastic Frame and Metal Back Plate

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Solution Overview

Problem

Conventional displays face challenges in reducing thickness and weight due to limitations in design and material usage.

Innovation Solution

A display design incorporating a metal back plate with wedging portions and a plastic frame, combined through injection molding, which reduces dimensions by omitting unnecessary elements and securely fastening essential components like the liquid-crystal module and rear housing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If conventional display structures with multiple frames (outer front frame, apparent central frame, rear housing) are used, then structural strength and component support are improved, but display thickness and weight increase

Engineering Contradiction:
Improvestructural strengthVSAvoiddisplay weight
Core Design Contradiction:
StrengthVSWeight of stationary object

Solution Approach 1:

The patent combines multiple separate frame structures (outer front frame, apparent central frame, rear housing) into a single integrated frame structure. This unified frame performs multiple functions: supporting the liquid-crystal module, housing the backlight module, and providing structural strength, thereby reducing the number of separate components and overall weight while maintaining structural integrity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated frame is designed to perform multiple functions simultaneously: it serves as the structural backbone, provides mounting surfaces for various components, houses the backlight module, and supports the liquid-crystal module. This multi-functionality eliminates the need for separate dedicated structures for each function, reducing overall weight.

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

2Stability of the object's composition

If multiple separate frames and housings are used to support components, then component support and structural stability are improved, but display thickness increases

Engineering Contradiction:
Improvestructural stabilityVSAvoiddisplay thickness
Core Design Contradiction:
Stability of the object's compositionVSLength of stationary object

Solution Approach 1:

The patent merges the rear housing and support structures into the integrated frame, eliminating the need for separate rear housing components. The frame itself provides the necessary support and stability for all internal components while maintaining a compact thickness profile.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The frame structure utilizes three-dimensional spatial optimization, with components arranged in layers along the thickness dimension. The liquid-crystal module is positioned at the front surface, the backlight module is integrated within the frame cavity, and connection terminals are arranged on the rear surface, maximizing space utilization while minimizing overall thickness.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Reliability

If multiple separate components (frames, housings, supporters) are used, then component support and fastening are improved, but device complexity and number of elements increase

Engineering Contradiction:
Improvecomponent fasteningVSAvoidnumber of elements
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent integrates multiple support and fastening functions into the single frame structure. The frame includes integrated mounting features, connection terminals, and support surfaces that eliminate the need for separate supporters, additional frames, and multiple fastening components, thereby reducing overall device complexity while maintaining reliable component attachment.

Inventive Principle:
Principle #5Merging (Combining)

4Reliability

If conventional multi-frame design is used, then component support is improved, but manufacturing complexity increases

Engineering Contradiction:
Improvecomponent supportVSAvoidmanufacturing complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The integrated frame can be manufactured as a single piece using injection molding or other成型 processes, significantly simplifying manufacturing compared to assembling multiple separate metal frames and housings. This reduces the number of manufacturing steps, assembly operations, and quality control checkpoints while maintaining structural support reliability.

Inventive Principle:
Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution effectively decreases the overall dimensions of the display by integrating the plastic and metal components, reducing the number of required elements and enhancing structural strength.

Implementation Method 1

The plastic frame is combined with the metal back plate by injection molding

Methodology Applied
Scientific EffectInjection molding:

Data Source

PatentUS10345634B2Display apparatus
Publication Date: 2019.07.09 WISTRON CORP
  • US10345634B2 patent drawing
  • US10345634B2 patent drawing
  • US10345634B2 patent drawing

AI summary

A display is provided. The display includes a metal back plate, a plastic frame, a backlight optical module and a liquid-crystal module. The metal back plate includes a plurality of metal wedging portions and a first side. The plastic frame is combined with the metal back plate by injection molding. The plastic frame includes a plurality of plastic wedging portions. The plastic wedging portions wedge the metal wedging portions. The plastic frame defines a recess on the first side of the metal back plate. The backlight optical module is disposed in the recess. The liquid-crystal module covers the backlight optical module and is connected to the plastic frame.