Clamping Positioning Structure for Touch Display Optomechanical Modules

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Solution Overview

Problem

The existing methods for fixing optomechanical modules to touch glass in touch display devices are prone to displacement during the gluing process, leading to reduced assembly speed and require destructive disassembly, which can damage the module or glass.

Innovation Solution

A positioning structure with two symmetric positioning members, each having a fixing and clamping part, is used to securely attach the optomechanical module to the touch glass via clamping, eliminating the need for additional jointing means and allowing for easy assembly and disassembly without damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the optomechanical module is fixed to the touch glass by gluing, then the module is attached to the glass, but the module is prone to displacement during the drying process due to glue flow or vibration

Engineering Contradiction:

Improvepositioning stabilityVSAvoidpositioning accuracy

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

The fixing mechanism is segmented into multiple independent clamping parts (first clamping part and second clamping part) that can independently constrain the optomechanical module from different directions, preventing displacement while maintaining positioning precision

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The clamping parts are designed to preliminarily constrain the optomechanical module in the correct position before final assembly is complete, preventing displacement during the entire assembly process rather than relying on glue drying

Inventive Principle:

Principle #10Preliminary action

2Reliability

If a positioning frame is disposed on the touch glass and the optomechanical module is fixed to the positioning frame by gluing, then the displacement problem is improved, but it takes a long waiting time for gluing thus reducing the assembly speed

Engineering Contradiction:

Improvepositioning stabilityVSAvoidassembly speed

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The chemical bonding process (gluing) is replaced with a mechanical clamping system that provides immediate positioning stability without requiring waiting time for adhesive drying, thereby maintaining reliability while significantly improving assembly speed

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The clamping parts are designed to be adjustable and adaptable, allowing quick installation and removal without permanent attachment, enabling fast assembly and disassembly operations while maintaining stable positioning during use

Inventive Principle:

Principle #15Dynamics

3Strength

If the optomechanical module is fixed to the positioning frame by gluing, then the module is attached securely, but destructive disassembly is required which may damage the optomechanical module

Engineering Contradiction:

Improveattachment strengthVSAvoiddisassembly ease

Core Design Contradiction:

StrengthVSEase of repair

Solution Approach 1:

The clamping mechanism is designed to be dynamically adjustable, allowing the clamping force to be easily released and reapplied, enabling non-destructive disassembly and reassembly multiple times while maintaining secure attachment during operation

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The clamping parts are designed to be reusable and non-damaging, allowing the optomechanical module to be recovered intact after disassembly, unlike glue-based methods that permanently damage components upon separation

Inventive Principle:

Principle #34Discarding and recovering

4Reliability

If additional jointing means are used to fix the optomechanical module, then the attachment is more secure, but the device complexity increases

Engineering Contradiction:

Improveattachment reliabilityVSAvoidstructure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The positioning and clamping functions are merged into an integrated positioning structure that is disposed on the touch glass, eliminating the need for separate positioning frames and additional jointing means, thereby maintaining secure attachment while reducing overall device complexity

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The positioning structure is designed to perform multiple functions simultaneously: positioning, clamping, and securing the optomechanical module, replacing what would otherwise require multiple separate components and assembly steps

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS9898052B2Positioning structure for touch display device and touch display device

Publication Date: 2018.02.20 WISTRON CORP

AI summary

The present disclosure relates to a positioning structure for touch display device and a touch display device. The touch display device comprises a touch glass, at least a positioning structure, and at least an optomechanical module. The positioning structure is used for positioning the optomechanical module to the touch glass. The positioning structure has at least a positioning member, which has a fixing part and a clamping part. The fixing part is clamped to the touch glass; the clamping part is provided for disposing the optomechanical module. The positioning structure according to the present disclosure allows direct assembly of the optomechanical module. In the assembling process, no other jointing means is required. Thereby, assembling easiness and speed can be well improved.