Bump Member Protruding Patterns for Edge Pressure Detection

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Solution Overview

Problem

Current display devices lack efficient pressure detection mechanisms, particularly in edge display portions, which limits their ability to accurately sense touch inputs and perform functions without physical buttons, especially in diverse environments such as underwater conditions.

Innovation Solution

Incorporating a pressure detection module with sensing electrodes and a bump member featuring protruding patterns that concentrate touch pressure, allowing for precise detection of touch positions and pressures across the display panel, including edge regions, and enabling operation of various functions through touch inputs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a pressure detection module is added to the display device, then pressure detection capability is improved, but device complexity increases

Engineering Contradiction:
Improvepressure detection accuracyVSAvoidstructure complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The bump member is integrated with the pressure detection module, combining the pressure concentrating function and the sensing function into a single unified structure. The bump member includes protruding patterns that are directly formed as part of the pressure detection module assembly, eliminating the need for separate pressure concentrating components and reducing overall device complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The bump member serves multiple functions simultaneously: it acts as a mechanical support structure, a pressure concentrating element, and an integral part of the pressure detection module. This multi-functionality reduces the number of separate components needed, thereby reducing device complexity while maintaining pressure detection accuracy.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Measurement precision

If protruding patterns are added to the bump member, then pressure concentration capability is improved, but manufacturing complexity increases

Engineering Contradiction:
Improvepressure detection accuracyVSAvoidmanufacturing difficulty
Core Design Contradiction:
Measurement precisionVSEase of manufacture

Solution Approach 1:

The bump member is formed with specific geometric parameters including protruding patterns with defined heights, widths, and spacing. By optimizing these parameters, the bump member effectively concentrates pressure while being compatible with standard manufacturing processes. The protruding patterns are designed with dimensions that can be achieved through conventional molding or fabrication techniques.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The bump member includes localized protruding patterns at specific positions to concentrate pressure at particular nodes where sensing electrodes are located. These localized features are integrated into the overall bump member structure, allowing pressure concentration at critical points without requiring complex manufacturing processes for the entire component.

Inventive Principle:
Principle #3Local quality

3Ease of operation

If the bump member is designed with specific protruding patterns, then touch input detection capability is improved, but device complexity increases

Engineering Contradiction:
Improvetouch input responsivenessVSAvoidstructure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The protruding patterns of the bump member are directly integrated with the sensing electrode structure, combining the pressure concentrating function and the sensing function into a single unified structure. This integration improves touch input detection responsiveness while avoiding the need for separate complex components.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The bump member is segmented into multiple protruding patterns that correspond to different sensing electrode regions. This segmentation allows independent optimization of pressure concentration for each sensing area, improving overall touch detection capability while maintaining a relatively simple overall structure that can be manufactured as a single integrated component.

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

Enhances the accuracy of pressure detection and enables the display device to perform functions without physical buttons, while also operating effectively in underwater environments by concentrating touch pressure on specific nodes, thus improving user interaction and convenience.

Implementation Method 1

a bump member in direct contact with the pressure detection module. The bump member includes a plurality of first protruding patterns, each of which overlaps a node defined as a region in which the first sensing electrode and the second sensing electrode cross

Methodology Applied
Scientific EffectPressure concentration:

Data Source

PatentUS10788911B2Display device including a bump member
Publication Date: 2020.09.29 SAMSUNG DISPLAY CO LTD
  • US10788911B2 patent drawing
  • US10788911B2 patent drawing
  • US10788911B2 patent drawing

AI summary

A display device includes a display panel having a central display portion and a first edge display portion extending from the central display portion and including a first bent region. A pressure detection module overlaps the first edge and includes a first sensing electrode and a second sensing electrode which extend in different directions. A bump member is in direct contact with the pressure detection module. The bump member includes a plurality of first protruding patterns, each of which overlaps a node defined as a region in which the first sensing electrode and the second sensing electrode cross.