Working Principle Of Capacitive Touch Screens

Views : 652
Author : Capacitive Touchscreen supplier
Update time : 2020-10-15 16:27:30
From the earlier resistive touch screen to the popular capacitive touch screen, touch screen is advancing by leaps and bounds in the development of mobile phones. What is the principle that enables the capacitive touch screens to sense our touch and react accordingly?

The structure of the capacitive touchscreen is mainly coated with a transparent thin film conductor layer on the glass screen, and a protective glass is added to the conductor layer. the double glass design can completely protect the conductor layer and the inductor.

When the finger touches the metal layer, due to the human electric field, the user and the surface of the capacitive touch screen form a low voltage. For high-frequency current, the capacitance is a direct conductor, so the finger absorbs a small current from the contact point. The current flows from the electrodes on the four corners of the touch screen, and the current flowing through the four electrodes is proportional to the distance from the finger to the four corners. The controller obtains the position of the touch point by accurately calculating the proportion of the four currents.
Related News
Read More >>
2023: The Best Brand of LCD Display Screens for Your Needs 2023: The Best Brand of LCD Display Screens for Your Needs
Mar .27.2023
Discover the Best Brands of LCD Display Screens for Your Needs" - This informative article explores the advantages of top brands like Samsung, Dell, XIANHENG, BOE, and INNOLUX for those seeking high-quality LCD displays.
OLED vs LCD: What's the Difference and Which is Better? OLED vs LCD: What's the Difference and Which is Better?
Mar .25.2023
Whether OLED or LCD is the best choice based on whether you're in the market for a new screen or smartphone. Although each system has pros and drawbacks, you should be knowledgeable of some major variances between the two while making a purchase. We'll discuss the distinctions between OLED and LCD in this article and guide you in picking the appropriate one for your needs.
Understanding 800x1280 Resolution and How to Use It Understanding 800x1280 Resolution and How to Use It
Mar .21.2023
This article briefly describes the 800x1280 resolution and how to use it, which will help you understand and choose the 800x1280 resolution when purchasing LCD screens.
Purchasing Guide: How to Choose China LCD Module Manufacturers Purchasing Guide: How to Choose China LCD Module Manufacturers
Mar .17.2023
Discover how to choose the best Chinese LCD module manufacturer with our informative and authoritative article. Learn about customization, support, and sustainability, and explore the latest trends in LCD module manufacturing.
pop_close
pop_main
Know more about LCD technology?