Button Composite Structure Without Substrate Through-Holes

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Solution Overview

Problem

The existing button structure methods that penetrate a rigid substrate to fasten a button structure to a deck often damage the substrate, increase costs, and reduce design freedom, and can lead to defective display panels due to leakage through holes, making it difficult to replace or decompose the button structure when the circuit unit fails.

Innovation Solution

A button complex structure is designed where the button structure is directly stacked on a rigid substrate without forming a through hole, using a member with a third substrate and coupling members to secure the button body and circuit unit, allowing for wireless communication and easy replacement of the circuit unit, and featuring a locking pin and groove mechanism for secure attachment and detachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a through hole is formed in the rigid substrate to fasten the button structure to the deck, then the button structure can be securely attached, but the rigid substrate is damaged and the display panel may become defective due to leakage

Engineering Contradiction:
Improveattachment reliabilityVSAvoidsubstrate damage and leakage
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

A deck is introduced as an intermediary component between the rigid substrate and the button structure. The deck is disposed on the rear surface of the rigid substrate, and the button structure is fastened to the deck, which is then attached to the rigid substrate. This intermediary layer prevents direct penetration of the rigid substrate, eliminating damage and leakage risks while maintaining secure attachment.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a through hole is formed in the rigid substrate to fasten the button structure, then the button structure can be securely attached, but the cost increases and design freedom is reduced

Engineering Contradiction:
Improveattachment reliabilityVSAvoidmanufacturing cost and design flexibility
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The deck serves as a mediator that eliminates the need for through-holes in the rigid substrate. By attaching the deck to the rear surface of the rigid substrate and fastening the button structure to the deck, the invention avoids costly and complex substrate penetration processes, thereby reducing manufacturing costs and preserving design freedom.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If the button structure is fastened to the deck through the rigid substrate, then the button structure is securely attached, but it becomes difficult to separate and replace the button structure when the circuit unit fails

Engineering Contradiction:
Improveattachment reliabilityVSAvoidbutton structure replaceability
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The invention segments the attachment system into three independent components: the rigid substrate, the deck, and the button structure. The button structure is fastened to the deck, which is separately attached to the rigid substrate. This segmentation allows the button structure to be easily detached from the deck for replacement or repair without damaging the rigid substrate, while maintaining secure attachment during normal operation.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS11822174B2Button composite structure
Publication Date: 2023.11.21 TOVIS CO LTD
  • US11822174B2 patent drawing
  • US11822174B2 patent drawing
  • US11822174B2 patent drawing

AI summary

A button complex structure according to one embodiment of solving the aspect may include: a display panel including a first substrate, a second substrate on the first substrate, and a liquid crystal layer between the first substrate and the second substrate; a member on the second substrate; a first coupling member configured to couple the display panel to one surface of the member; a button structure disposed on the other surface opposite to the one surface of the member; and a second coupling member configured to couple the other surface of the member to the button structure, wherein the member includes a third substrate and the button structure is directly coupled to the third substrate via the second coupling member, wherein the button structure includes a button body fixed to the third substrate, a button circuit unit fastened to the button body, a button connected to the button circuit unit, and further includes a first communication unit disposed between the member and the display panel and a second communication unit disposed in the button circuit unit.