Working Principle Of Capacitive Touch Screens

Views : 837
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 >>
Choosing the Right LCD for Digital Signage Choosing the Right LCD for Digital Signage
Sep .28.2023
Unlocking Digital Signage Success: Expert LCD Selection Tips for Vibrant Displays. Choose LCD, Digital Signage, Screen Size, Durability, and More!
Best LCD Screen for Gaming: Elevate Your Gaming Experience with XIANHENG TECH Best LCD Screen for Gaming: Elevate Your Gaming Experience with XIANHENG TECH
Sep .27.2023
Elevate your gaming experience with XIANHENG TECH's cutting-edge LCD screens. Immerse yourself in stunning visuals, reduce input lag, and enjoy fluid gameplay.
Exploring Touch-Enabled LCD Displays: Revolutionizing Interactivity Exploring Touch-Enabled LCD Displays: Revolutionizing Interactivity
Sep .26.2023
In the fast-paced world of technology, touch-enabled LCD displays have emerged as a transformative innovation, revolutionizing the way we interact with digital content. At XIANHENG TECH, with over a decade of professional expertise in providing cutting-edge LCD solutions, we understand the significance of touch-enabled displays in today's digital landscape. In this article, we delve into the world of touch-enabled LCDs, exploring their capabilities, applications, and the advantages they offer to various industries.
8 Factors to Consider When Buying an LCD: Your Ultimate Guide 8 Factors to Consider When Buying an LCD: Your Ultimate Guide
Sep .25.2023
In today's rapidly advancing technological landscape, choosing the perfect LCD (Liquid Crystal Display) for your needs can be a daunting task. With a multitude of brands, sizes, and features available, making an informed decision is crucial. In this comprehensive guide, we'll delve into the essential factors you should consider when buying an LCD. Whether you're searching for a new TV, computer monitor, or display for another purpose, our expert insights will empower you to make the right choice.
pop_close
pop_main
Know more about LCD technology?