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The Difference Between Resistive Touch Screen And Capacitive Touch Screen

The Difference Between Resistive Touch Screen And Capacitive Touch Screen

2020-04-20

Usually when we talk about touch screen, we will talk about two kinds of it, one is resistive touch screen, the other one is capacitive touch screen.

Before figuring out what a touch screen display is, let's first understand the basic principles of touch screen display product operation.

Simply put, display products are to solve the relationship between electricity and optics.

After strict design and manufacturing, the product is controlled by the embedded integrated chip to control the current operation, and the positive and negative electrodes are connected. The precision components inside the product are drilled. Then, light is generated and then the screen appears. And how is the touch function implemented? The answer is the same: the two conductive layers contact each other, the current at the contact point changes, and the corresponding function is executed.To control the change of the display screen through the touch principle, this is the basic principle of the operation of touch display products.

I believe that through the brief but vivid introduction above, you have understood the basic principles of touch and display.

 

Back to topic: resistive touch screen and capacitive touch screen.

 

Resistive touch screen is a relatively mature touch screen technology. It uses a passive, physical squeeze method to contact the two conductive layers under the touch screen with pressure: when you click or write with your finger or a rubber pen, the screen will slightly bend, causing the two conductive layers to contact. Then the current at the contact point changes, and the relevant commands are executed. The advantages of the resistive screen are cheap, mature technology (can also be understood as a technology to be eliminated soon), and durable; the disadvantage is that the response is slow, only a single point can be controlled at a time, inconvenient manipulation, and more reflected light. At present, resistive touch screens are mostly used on old-style ATM and electronic signature boards.


Capacitive touch screen is a more advanced touch screen technology. The advent of the iPhone has brought capacitive technology to the people. Unlike resistive technology that uses external pressure to contact the conductive layer of a product, capacitive technology uses a charged substance (usually our fingers) to participate in the flow of current to achieve the touch function. Our fingers become the bridge between the two conductive layers! The advantages of capacitive touch screen are quick touch response, multi-touch, and easy operation. Its disadvantage  is that it is more expensive than resistive products. At present, the application of capacitive touch screens has been very extensive. Most of our common consumer electronic products, casino entertainment equipments, self-service inquiry machines or kiosk machines at airports and train stations, etc. have mostly used capacitive screens.




Top One Tech Limited's touch screen displays all use high-spec, high-quality capacitive touch screens. The products are smooth to touch and operate smoothly, and are popular among customers. Whether one wants to buy a touch monitor, a touch screen, or a semi-finished product with a touch screen bound to an LCD screen, Top One Tech Limited can provide it.



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