Front Screen Glass Lens For Iphonex13pro with OCA

                                                                         Touch screen capacitive screen principle

The touch screen is currently the most friendly computer user interface interface. It is more and more widely used in consumer electronics products. Touching the detection device and the touch screen controller will cause damage to the mechanical structure of the detection device during the touch screen installation process, resulting in a decrease in the touch accuracy of the touch screen. The lifespan is shortened; in addition, the cost of commonly used capacitive and resistive touch screens is relatively high. The inductive touch screen avoids damage to the touch detection device during the touch process and prolongs the life of the touch screen product.
The working principle of the inductive touch screen, as well as the hardware circuit and part of the program design of the controller, the controller circuit has all passed the verification. The non-direct contact touch of the inductive touch screen avoids damage to the touch detection device, prolongs the life of the entire touch control system, and the repetition accuracy and touch sensitivity of touching the same point meet the expected design requirements.

The capacitive sensing touch screen is not affected by dirt, dust or oil, but because it adopts the electric field coupling principle, it will be affected by the surrounding environment to varying degrees. At the same time, the capacitive sensing touch screen has serious drifting phenomenon.

What are the application fields of the touch screen

The touch screen has become a hot spot in the market. In the market, shopping malls, hotels and other places, smart phones are still the main products. The growth momentum of the smartphone market has slowed down and entered a period of flat development. Applications of touch screens other than mobile phones, such as automotive electronics, retail, medical care, public facilities, leisure and entertainment, will drive the rapid growth of the touch screen market.

In addition to applications in large fields, touch screens can be vigorously innovated in subdivided fields. In the field of "pen writing tablet", we will innovate the touch screen.

The products have been extended to tablets with pen and writing functions, e-books, all-in-one computers, electronic whiteboards, etc. And the pen and hand can be used at the same time, while the hand is touching, the pen can also write at the same time.

The traditional materials for capacitive touch screens are ITO, materials, metal grids, nano-silver wires, carbon nanotubes, conductive polymers, graphene, etc. Metal mesh and nano-silver wire have more supporters. Both materials are metal (silver or copper), and their conductivity is better than ITO.