Display Inspection Device Segmented Switch for Heat Dissipation

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Solution Overview

Problem

Existing inspection devices for display apparatuses face challenges in preventing damage and burning during the inspection process, particularly due to the design of the opening portion which can lead to overheating and adhesion issues when closing and opening.

Innovation Solution

An inspection device with a stage, an opening/closing module, and an inspection module, where the opening/closing module includes a switch and a switch moving part that rotates to ensure the switch is coplanar with the seating portion, reducing contact and adhesion, and the inspection module applies voltage to detect electrical signals while minimizing overheating.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the opening portion is closed during inspection, then electrical contact is improved, but burning and overheating of the display apparatus occurs

Engineering Contradiction:
Improveelectrical contact qualityVSAvoidburning and overheating
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The opening portion is divided into multiple segments that can be independently controlled. During inspection, only the necessary segments are closed to establish electrical contact, while other segments remain open to allow heat dissipation, thus preventing burning and overheating while maintaining adequate electrical contact.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The opening portion transitions from a static closed state to a dynamic state where segments can be selectively opened or closed. During inspection, the system dynamically adjusts which segments are closed based on the specific inspection needs, allowing optimal balance between electrical contact and heat management.

Inventive Principle:
Principle #15Dynamics

2Measurement precision

If the opening portion is closed during inspection, then electrical contact is improved, but damage during detachment occurs

Engineering Contradiction:
Improveelectrical contact qualityVSAvoiddamage during detachment
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The opening portion is segmented to allow selective closure. During detachment, only the segments that were closed during inspection remain closed, while other segments are open, creating gaps that prevent adhesion and facilitate easy, damage-free detachment of the display apparatus.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The segmented opening portion acts as an intermediary structure that can be in different states. During detachment, the open segments serve as intermediaries that prevent direct contact between the display apparatus and the inspection device, reducing adhesion and preventing damage.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Measurement precision

If the switch is moved to close the opening portion, then electrical contact is established, but contact area increases causing adhesion

Engineering Contradiction:
Improveelectrical contact establishmentVSAvoidadhesion
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The switch is designed with segmented contact points that correspond to the segmented opening portion. When closed, only specific segments make contact, minimizing the total contact area and reducing adhesion forces while still establishing the necessary electrical connections for inspection.

Inventive Principle:
Principle #1Segmentation

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 reduces burning and damage to the display apparatus by ensuring proper cooling and easy detachment, enhancing the reliability of the inspection process.

Implementation Method 1

a hinge that rotates the switch about a rotational axis so that a surface of the switch is coplanar with the seating portion of the stage

Methodology Applied
Scientific EffectRotational motion:

Implementation Method 2

an inspector including a probe that applies a voltage to a target and detects an electrical signal generated by the target

Methodology Applied
Scientific EffectElectrical signal detection:

Data Source

PatentUS20240094246A1Inspection device for display apparatus and inspection method for display apparatus
Publication Date: 2024.03.21 SAMSUNG DISPLAY CO LTD
  • US20240094246A1 patent drawing
  • US20240094246A1 patent drawing
  • US20240094246A1 patent drawing

AI summary

An inspection device for a display apparatus includes a stage including a seating portion on which a target is seated and an opening portion located in the seating portion, an opening/closing module that opens or closes the opening portion, and an inspection module that inspects electrical characteristics of the target.