Display Frame Pin Coupling for PCB and Back Cover Rigidity

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Solution Overview

Problem

Existing large-screen, ultra-thin display devices face challenges in securing structural rigidity, efficiently coupling PCBs and back covers to frames, and reducing weight and cost.

Innovation Solution

A display device design that includes a frame with pins for direct coupling of a PCB and back cover, eliminating the need for additional coupling plates and enhancing structural rigidity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a plate is used to couple PCB and back cover to frame, then coupling is achieved, but weight and cost increase

Engineering Contradiction:
Improvecoupling capabilityVSAvoiddevice weight
Core Design Contradiction:
Ease of manufactureVSWeight of moving object

Solution Approach 1:

The patent extracts and eliminates the coupling plate from the assembly, replacing it with pins that directly couple the back cover and PCB to the frame. This removal of the intermediate component reduces weight while maintaining coupling functionality through the pin structure that protrudes from the frame and secures components directly.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent merges the coupling function into the frame structure itself by integrating pins directly into the frame body. Instead of using a separate coupling plate, the frame now performs both structural support and component coupling functions through its integrated pin structure, reducing the number of parts and overall weight.

Inventive Principle:
Principle #5Merging (Combining)

2Ease of manufacture

If a plate is used to couple PCB and back cover to frame, then coupling is achieved, but cost increases

Engineering Contradiction:
Improvecoupling capabilityVSAvoiddevice cost
Core Design Contradiction:
Ease of manufactureVSWeight of stationary object

Solution Approach 1:

The patent extracts and eliminates the coupling plate from the assembly, replacing it with pins that directly couple the back cover and PCB to the frame. This removal of the intermediate component reduces weight while maintaining coupling functionality through the pin structure that protrudes from the frame and secures components directly.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent merges the coupling function into the frame structure itself by integrating pins directly into the frame body. Instead of using a separate coupling plate, the frame now performs both structural support and component coupling functions through its integrated pin structure, reducing the number of parts and overall weight.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of manufacture

If traditional coupling structure is used, then components are secured, but structural rigidity is insufficient for large-screen ultra-thin devices

Engineering Contradiction:
Improvecomponent securingVSAvoidstructural rigidity
Core Design Contradiction:
Ease of manufactureVSStrength

Solution Approach 1:

The patent transitions from a planar coupling plate to a three-dimensional pin structure that protrudes from the frame. This dimensional change allows the pins to engage with corresponding holes in the back cover and PCB, creating a more rigid spatial connection that resists bending and twisting forces better than a flat plate could provide.

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

Solution Approach 2:

The frame is constructed using a composite material structure combining a core layer with front and rear skin layers. This composite construction provides enhanced structural rigidity and strength to support the pins and withstand the mechanical stresses of large-screen ultra-thin display devices, while maintaining a thin overall profile.

Inventive Principle:
Principle #40Composite materials

Data Source

PatentUS20250168997A1Display device
Publication Date: 2025.05.22 LG ELECTRONICS INC
  • US20250168997A1 patent drawing
  • US20250168997A1 patent drawing
  • US20250168997A1 patent drawing

AI summary

Provided is a display device. A display device according to the present disclosure may include: a display panel; a frame positioned behind the display panel, and to which the display panel is coupled; and a back cover covering a rear of the frame, wherein the frame may include: a pin including a body protruding from a rear surface of the frame toward an inner side of the back cover and a head protruding from a side surface of the body toward an outer side of the body, and a portion of the back cover is located between the rear surface of the frame and the head and is hung on the head.