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Introduction to the advantages and disadvantages of capacitive touch panel


The capacitive touch panel manufacturer tells you that touch screens are very common in our daily life, and we use it every day. You use it when you type a message on your phone, when you withdraw money from an ATM, when you adjust the air conditioner temperature in your office. But have you noticed that there are also certain differences between different touchscreens, such as response time, required pressure, and even different textures of your fingers. Capacitive touch panel manufacturers tell you that each type of touch panel is different and the reason for this is the difference in touch technology.

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Capacitive touch panel manufacturers tell you that capacitive touch technology relies on the capacitance of the human body, not pressure like resistive technology. There are two types of capacitive touch panels, surface capacitive technology and projected capacitive technology, both of which work by detecting changes in capacitance on the screen.
Surface capacitive touch panel: used for larger size touch screen products that require less precision. The touch screen is covered with a thin glass surface. Under this glass surface, there is a protective layer covered with a thin layer of electrodes. The electrodes on the corners of the panel supply voltage to the thin film layer. When the finger touches the screen, a small charge is transferred to the finger and the circuit is complete, which creates a voltage drop at that spot on the screen and the touch is detected. That's why you can't use a capacitive touchscreen while wearing gloves.
Projected capacitive touch panel: More sophisticated capacitive touch technology for smaller size touch screen products as it is more accurate than surface capacitive touch panel. Under the glass with the protective cover, there is a pattern or matrix of electrode layers. This pattern forms the plane of X and Y coordinates that the controller uses to count touch events.
Advantages of capacitive touch technology: 1. Excellent sensitivity; 2. Multi-touch capability; 3. Very good durability, with glass front design.
Disadvantages of capacitive touch technology: 1. The size of the screen limits the accuracy of the sensitivity; 2. The price is higher than that of the resistive screen; 3. The capacitive touch panel manufacturer tells you that it cannot be used with a gloved hand or a stylus.

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