What is a projected capacitive touch screen used for?

Table of Contents

1. Introduction
2. Understanding Projected Capacitive Touch Screens
3. Applications in Various Industries
4. Key Features and Specifications
5. Hangzhou Grahowlet Company Solutions
6. References

Introduction

Projected capacitive touch (PCT) screens, known for their robustness and dynamic functionality, have become pivotal in modern touch input technology. Their use spans across multiple industries due to their precision, durability, and interface flexibility.

Understanding Projected Capacitive Touch Screens

PCT screens operate by detecting touch through a glass panel that is capacitive, which means it can store and transmit electrostatic charges. The changes in these charges help determine the precise location of touch. This technology allows for multi-touch capabilities and high durability due to the absence of moving parts.

Applications in Various Industries

Projected capacitive touch screens are widely used in the following industries:

• Consumer Electronics: Smartphones and tablets incorporate PCT for its responsiveness and support for gestures.
• Automotive: Touch interfaces for navigation and entertainment units due to their resilience to dust and water.
• Medical Devices: Due to their precision and hygiene-friendly surfaces, PCT screens are ideal for medical equipment.
• Industrial Applications: Utilized in rugged environments where their robustness is essential.

Key Features and Specifications

Projected capacitive touch screens are characterized by the following features:

• Multi-Touch Support: Up to 10-point touch enabling complex gestures and dynamic input.
• Durability: Resistance to scratches and harsh environmental conditions.
• High Resolution and Optical Clarity: Providing vivid displays with resolutions around 1920x1080 pixels and higher.
• Response Time: Typically less than 5 milliseconds, offering swift and smooth user interactions.
• Operating Temperature Range: -20°C to +70°C, making it suitable for diverse environments.

Hangzhou Grahowlet Company Solutions

Hangzhou Grahowlet specializes in providing high-quality projected capacitive touch solutions. Their products are known for their advanced technical specifications and are designed to meet industry-specific needs.

Product Offerings:

• PCT Panels: Available in sizes ranging from 7 inches to 21.5 inches, catering to various applications.
• Customizable Options: Tailored designs for unique industrial requirements.
• Advanced Controller ICs: Incorporating high-performance sensors for accurate touch detection.

Performance Metrics: Solutions from Hangzhou Grahowlet feature a touch accuracy of <1.5 mm and a response time of under 10 milliseconds.

References

The following resources were referred for compiling information on projected capacitive touch technology and solutions:

• Technical Whitepapers on Touch Technology, available at IEEE Conferences.
• Product Data Sheets from Hangzhou Grahowlet, company publications.
• Industry Reports on Touchscreen Markets, published by TechNavio.