It can be seen intuitively from the Android tablet teardown diagram: the bottom display panel and the upper touch panel are combined into one.
When we face a touch-type Android tablet, it looks like a screen at a glance. If there is enough skill to open the display, we will find that there is a mystery. The display is divided into two panels. The first layer is the display panel, and the touch panel is tightly covered on the display panel. The key to determining the performance of a flat panel touch is the touch panel above. The flagship Ten of the smart device uses a new piezoelectric touch panel in this panel. technology.
From this point of view, the effect of the separation of the display panel and the touch panel can be seen.
The key factors that determine the performance of a flat panel are related to the quality of the underlying display panel and the transmittance of the upper touch panel. The transmittance of the smart tablet flagship Ten is over 95%, giving a contrast, resistive touch panel only Can reach 80%. This article focuses on the leading touch technology on Ten--piezo touch.
For the touch-type tablet, we are not unfamiliar. The famous Apple iPad represents the direction of capacitive touch. A large number of touch-type tablets on the market use resistive touch technology. The Apple iPad itself is impeccable, but the price is high. It is difficult to get close to ordinary consumers. The price of resistive touch panel is suitable for the experience. However, consumers need a tablet machine with more advanced touch technology compatible with all the advantages of resistive screen and capacitive screen. Piezo touch technology Android tablets are born with the call. Let's take a look at how the touch screen works and compare the advantages and disadvantages of resistive and capacitive screens.
Resistive touch schematic:
The working principle of the resistive touch screen is that when the finger or the touch object touches the screen, the upper layer resistor is deformed by pressure and contacts the lower layer resistor, and the lower layer resistive film can sense the position of the finger or the touch object and feed back.
Capacitive touch structure diagram
The working principle of the capacitive touch screen is that when the finger touches, the capacitance of the contact changes, so that the frequency of the connected circuit board changes, and the touch position can be determined by measuring the frequency change.
Tempered Glass Screen Protector
Anti Spy Screen Protector,Tempered Glass Screen Protector,Anti Break Tempered Glass,Full Screen Tempered Glass
Guangzhou Ehang Electronic Co., Ltd. , https://www.ehangmobile.com