3.5 Inch capacitive touch screen circuit
The capacitive touch panel, a high-resolution position sensor intended for computer displays, must be safe and inexpensive and must sense position accurately in spite of electrical noise, dirt, or direct electrostatic discharge. The implementation discussed uses a quasi-static electric field, applied to a semiconducting coating on the panel surface. A touch draws current from the surface. This current can be used to compute position. If the computation is performed properly, the computed position is independent of touch current and panel coating resistivity. The electroquasistatic basis for position measurement with a capacitive touch panel and a system to implement it are described.
Model Number | C4D035GG138 |
Structure | Glass+Glass |
Cover Glass Dimension | 72.1±0.05*104.2±0.05*0.7±0.05MM |
Sensor Size | 53.8±0.2*81.8±0.2*0.55±0.05MM |
Cover Lens VA | 49.56±0.15*74.04±0.15MM |
ITO Glass | 0.55MM |
Cover Glass | 0.7MM |
Total Thickness | 1.45±0.1MM |
Surface Hardness | ≥6H |
Transparency | ≥85% |
IC | FT |
Interface of CTP | I2C |
Touch Points | 5-10 Points |
Operating Temperature | –20℃~70℃ ≤90%RH |
Storage Temperature | –30℃~80℃ ≤90%RH |
Our strength
WIWO has more than 100 staffs and the factory plant is 100 grade dust-free with area of 3000 SQM. We are sure the high quality touch panels will satisfy your requirements owing to our key materials and components are sourced from Japan and Chinese domestic well famous companies. Our engineers have more than 10 years experience in touch screen industry. They are all very skillful and have idea to provide the reliable solution for the touch screen. The OEM & ODM are welcome in our factory. We use different kinds of IC chip controller, like EETI,CYPRESS, ILITEK,GOODIX,Focaltek.The optical bonding and tape bonding of LCM and touch panel is available in our factory.All the order processing managment is strictly controlled by the rule of IATF,ISO, ROHS and REACH.
Our first class team, first class equipment and first class service makes sure that we make the right touch panels with reliable and stable quality and function. Our factory has professional laboratory equipments to test the function of touch screens, like high temperature and humidity equipment,salt-spraying tester,optical tester,tensile tester, size tester and so on.
Contact us by email:Sales03@wiwotouch.com
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