Tool-Free Touch Panel Mounting via Protrusion and Guide Groove

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Solution Overview

Problem

The existing display devices with touch panels have complex structures due to disengagement mechanisms, leading to increased production costs and maintenance difficulties, particularly in replacing the touch panel without requiring tools.

Innovation Solution

A display device design featuring a front case with protrusions that engage with a guide groove and a lock unit on the rear case, allowing for simple mounting and removal without tools, using engagement protrusions and guide grooves for alignment and locking, thereby simplifying the structure and enhancing maintainability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of repair

If a disengagement mechanism is added to enable easy removal of the front case, then the ease of repair is improved, but the device complexity increases

Engineering Contradiction:
Improveease of touch panel replacementVSAvoidstructure complexity
Core Design Contradiction:
Ease of repairVSDevice complexity

Solution Approach 1:

The case is divided into a front case and a rear case that can be separated from each other. The front case can be easily removed from the rear case to access the touch panel for replacement, while the display unit remains mounted on the rear case. This segmentation enables easy maintenance without requiring complete disassembly of the device.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The touch panel is extracted as a separate replaceable component that can be accessed by removing the front case. This allows the touch panel to be independently replaced without affecting the display unit or the rear case, simplifying the repair process.

Inventive Principle:
Principle #2Taking out (Extraction)

2Ease of operation

If a disengagement mechanism is added to enable easy removal of the front case, then the ease of operation is improved, but the manufacturing cost increases

Engineering Contradiction:
Improveease of front case removalVSAvoidproduction cost
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

The case is divided into separable front and rear portions with simple engagement features. The front case can be easily attached to and removed from the rear case without complex mechanisms, reducing manufacturing costs while maintaining ease of operation.

Inventive Principle:
Principle #1Segmentation

3Stability of the object's composition

If the front case is made permanently fixed to ensure structural stability, then the stability of the object's composition is improved, but the ease of repair deteriorates

Engineering Contradiction:
Improvestructural stabilityVSAvoidmaintainability
Core Design Contradiction:
Stability of the object's compositionVSEase of repair

Solution Approach 1:

The case is segmented into front and rear parts that can be easily separated. The front case can be removed from the rear case without tools, allowing access to the touch panel for replacement while maintaining structural integrity during normal use.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The front case is designed with self-aligning engagement features that automatically guide it to the correct position on the rear case during assembly. The protrusions on the front case fit into guide grooves on the rear case, enabling tool-free attachment and removal while ensuring proper alignment and structural stability.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS10178783B2Display device
Publication Date: 2019.01.08 STEERETAIL CO LTD
  • US10178783B2 patent drawing
  • US10178783B2 patent drawing
  • US10178783B2 patent drawing

AI summary

A display device of this invention, includes a front case including a touch panel; and a rear case including a lock unit, which is configured to regulate movement of the front case, and a display unit, in which the front case is mounted to the rear case by inserting a protrusion that is formed in a peripheral edge portion of the front case into a guide groove that is formed in an outer edge portion of the rear case to bring the front case into contact with the rear case, subsequently moving the front case along the guide groove to engage the protrusion with the guide groove, and moving the lock unit of in the rear case from a first position to a second position, which is different from the first position, to regulate the movement of the front case.