Active Member
|
[China]
Address: 4th Floor ,Building1,Daxin Xinmei Industrial Park Guangming District.ShenZhen Guangding,China.
Contact name:Weibin Wang
Shenzhen Yongchuangli Electronic Technology Co., Ltd. |
|
|
17 inch or customized sizes factory directly sale CTP capacitive touch screen overlay kit panel
Capacitive Touch Panel Technology
Capacitive touch panel is a four-storey glass screen surface and
laminated within the glass screen is coated with a layer of ITO,
the outermost layer is a thin layer of silica glass, laminated ITO
coating as a face, four electrode leads in the four corners, inner
ITO good shielding to ensure a good working environment.
When finger touch the metal layer that is, because the body farm,
users and touch-screen surface with a coupling capacitor, high
frequency current, capacitance is a direct conductor, so fingers
sucked away a very small amount of current from the contact point.
The respectively current outflow from the touch electrode on the
four corners of the screen, and flows through the four electrode
current is proportional to the distance from the fingers to the
four corners, controller through the accurate calculation of the
four current percentage, came to the location of the touch point.
How does a Capacitive Touchscreen Work?
Capacitive touch screens are built with a thin layer of conductive material, such as copper or Indium Tin Oxide (ITO), printed onto the underside of the display's insulating outer layer. When a finger touches the screen, a small electrical charge is drawn to the point of contact, which effectively becomes a functioning capacitor. The resulting change in the electrostatic field is then measured to pinpoint where the contact took place.
Projected Capacitive touchscreens are used on the vast majority of
smartphones and tablets. PCap screens consist of a layer of glass,
a matrix of electrodes and a protective film. The matrix of
electrodes creates a three dimensional electrostatic field that
registers even the slightest change in electrical current. So, when
a conductive object, such as your finger or a stylus, comes into
contact with the matrix of electrodes, the electric field is
changed slightly, and the screen registers your touch.
Factory Direct Supply 10 touch points screen touch China 17" Capacitive Touch Panel mirror customized
| YCLtouch screen specification | |
| Size | 17 inch |
| Type | Capacitive |
| Controller | EETI / ILITEK |
| Touch points | 10 points |
| Structure | Cover glass + Senor glass |
| Touch solution | Chip on board |
| Interafce | USB / IIC / RS232 |
| Operate system | Win7,win8,win10,Android, Linux,MAC, etc. |
| Working voltage | 5V |
| MOQ | 1PCS |
| Surface hardness | 6H |
| The terms of delivery | EXW or FOB |
| Trade Terms | Sample in stock,1-4 weeks for mass production |
| Payment | 50% T/T in advance and 50% before delivery for mass production |
| Warranty | 12 months |
Capacitance Touchscreen Construction
Several techniques are available to construct a capacitance touchscreen. These include conductive wire construction or the application of transparent conductive materials, such as Indium Tin Oxide (ITO), to a polyester (PET) film layer "sandwich" or to a glass substrate.
