ILITEK USB multi PCAP capacitive screen
Item specification
| Driver IC | WEIDA, ILITEK, EETI, FOCALTECH, GOODIX |
| Interface | 4 wire, 5 wire |
| Touch points | Multi Touch 5 points or 10 points |
| Circuit level | DC5V 1mA |
| Linearity | <3% |
| Transparency rate | >80% |
| Structure | Film+glass+tail |
| Operation pressure | 30-100g |
TFT Production process
* Mother glass cutting
* Backlight LED strip designing
* Backlight assembling
* COG bonding
* FOG bonding
The capacitive touch screen uses vacuum coating technology to coat the inner surface and the interlayer of the glass screen with a layer of IT0, the outer layer is a glass protective layer, and the interlayer IT0 coating is used as the working surface. When the user touches the metal layer, a coupling capacitance is formed between the user and the surface of the touch screen due to the electric field of the human body. The finger draws a very small current from the point of contact. This current is divided from the electrodes on the four corners of the touch screen, and the current is proportional to the distance from the finger to the four corners. The controller calculates the proportion of the four currents to obtain the position of the touch point. Capacitive touch screen can be completely adhered to the display, and it is not easy to be damaged and broken: capacitive touch can use the bonding method of bonding pad, which has waterproof function, and this kind of touch screen has high resolution, sensitive response, good tactile feeling, waterproof and waterproof Dust, sunscreen and other characteristics, very suitable for harsh environments. The working principle of the capacitive screen determines that the touch object must be a conductor, and there is no response when a gloved hand or a non-conductive object is touched.
FAQ
Q: Do you provide free samples?
A: For first time cooperation, samples will be charged, the amount will be returned at the mass order stage. In regular cooperation, samples are free. Sellers keep the right for any change.
Q：Which applications you products are mainly used for?
A: Embedded system, Intercom system, Biometric, HMI, Smart home, Robot, Hand-held PDA, after market automotive and etc.
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