Removable Front Case for Touch Panel Maintenance

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Solution Overview

Problem

Existing display devices with touch panels face maintainability issues as the touch panel cannot be removed without disassembling the entire display unit, making maintenance, repair, or replacement cumbersome and time-consuming.

Innovation Solution

A display device design featuring a rear case and a removably attached front case, allowing individual mounting and removal of the display unit and touch panel, with a disengagement mechanism and cushioning tapes for easy maintenance without specialized tools.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the display unit and touch panel are fixed together using common screws in a co-fastening state, then the structural integrity and assembly simplicity are improved, but the maintainability deteriorates as the touch panel cannot be removed without removing the display unit

Engineering Contradiction:
Improveassembly simplicityVSAvoidmaintainability
Core Design Contradiction:
Ease of manufactureVSEase of repair

Solution Approach 1:

The case is divided into a rear case and a front case that can be separately removed. The touch panel is mounted on the front case while the display unit is mounted on the rear case, allowing independent removal of each component for maintenance without affecting the other.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The touch panel mounting structure is extracted from the display unit mounting structure by placing the touch panel on the separable front case. This allows the touch panel to be removed independently through the opening portion of the front case without disassembling the display unit.

Inventive Principle:
Principle #2Taking out (Extraction)

2Ease of repair

If the touch panel is mounted on the front case with an opening portion, then the maintainability is improved by enabling independent removal, but the device complexity increases due to additional case structures

Engineering Contradiction:
ImprovemaintainabilityVSAvoidcase structure complexity
Core Design Contradiction:
Ease of repairVSDevice complexity

Solution Approach 1:

The case is segmented into rear case and front case portions, allowing the touch panel to be accessed and removed through the opening portion of the front case without affecting the display unit or requiring complete disassembly of the device.

Inventive Principle:
Principle #1Segmentation

3Ease of repair

If individual mounting structures are provided for display unit and touch panel, then the ease of maintenance is improved, but the manufacturing complexity increases

Engineering Contradiction:
Improveease of maintenanceVSAvoidmanufacturing complexity
Core Design Contradiction:
Ease of repairVSEase of manufacture

Solution Approach 1:

The case is divided into separable rear case and front case portions, each with its own mounting structure. The display unit is mounted on the rear case while the touch panel is mounted on the front case, enabling independent maintenance of each component.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The touch panel mounting structure is extracted from the display unit mounting structure by placing the touch panel on the separable front case with an opening portion, allowing independent access and removal without requiring complex disassembly procedures.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentUS10031550B2Display device exhibiting excellent maintainability
Publication Date: 2018.07.24 NEC PLATFROMS LTD
  • US10031550B2 patent drawing
  • US10031550B2 patent drawing
  • US10031550B2 patent drawing

AI summary

Provided is a display device, including: a display unit (31); a touch panel (32) stacked on a front part of the display unit (31); and a case for housing the touch panel (32) and the display unit (31). The case includes: a rear case (21); and a front case (22) removably attached to the rear case (21), which has an opening portion for exposing a touch detection region and a visible region of the touch panel (32) and the display unit (31) stacked together. The display unit (31) is mounted to the rear case (21), and the touch panel (32) is mounted to the front case (22).