Capacitive Switches

Capacitive Frontpanel Switch

Item No.: 045
* PMMA Front Panel;
* Capacitive Rigid PCB Circuit;
* Embedded Backlighting LEDs;
* LGF Backlighting;
* USB Communication Protocol and Connection;
Description Review
Description
Teingesch is a professional designer and manufacturer of capacitive membrane switches and user interface membrane keypads technology in China mainland. Our capacitive touch membrane keypad consists of one or more capacitive touch buttons.

We print the capacitive touch buttons/sensors on PET circuit with the transparent conductive ink. We also use ITO etching technology to make the capacitive touch buttons/sensors.

Through the customized IC chip to control the touch function wanted. Except for the capacitive touch keypads, we also manufacture the capacitive touch sensor circuits.

By capacitive touch technology, the overlay materials can be very diverse and not only limited to PET or PC super thin films. For the normal membrane keypads, the function triggered by the mechanical buttons (metal domes or polydome) and also the common membrane keypads only can use PET, PC film for the graphic overlay.

Use a heavy force to press the buttons to make the conductive pads of the polydome or metal domes connected to the conductive pads on circuit layer, then become a loop circuit and occur the function. But for the capacitive touch membrane keypads or circuits, it is different.

We use a variety of overlay materials such as thick glass, PMMA, Polycarbonate panels, etc. The material choice is no longer limited to only a very thin film material, on the contrary, the options are not endless.


In addition, the capacitive touch keypad no longer needs heavy force to press buttons, you only need tiny touch the buttons, then the sensor pad can connect the circuit loop and occur the function.


Teingesch: The Industry Leader
Since Teingesch closely follows up the industry trend, therefore, we are always stepping forefront of domestic peers. We have also successfully developed our own capacitive membrane switches and inductive circuit foils.

Capacitive membrane switches consist of the top cover and the bellow sensor circuit. So, the top cover of our capacitive membrane switches can be from 0.15mm to 5.0mm thick PMMA, PC, glass, or other plates, which can cover nearly all different end market applications.
Likewise, the sensors on the inductive circuit can be printed on the PET film or etched on the ITO film. The different likes bellow:
Item Printed Sensor ITO Etched Sensor
Light Transparency Low (70~85%) High (90~99%)
Cost Low High
Tool Fees Low High


Key Benefits of Capacitive Switches:
  • Waterproof and easy to clean
  • Fingers light touch and non-conductive gloves touch
  • Can be backlighting
  • High Durability
  • Diverse front overlay selection
  • Friendly interface
  • Single key or multi-keys or slider
  • Low current needs

Applications for Capacitive Switches/Capacitive Circuits:
  • Medical equipment, devices
  • Healthcare devices
  • Energy
  • Computing
  • Dirty, oil contamination, wet environment
  • Household appliances
  • Industrial Control
  • Aviation and Boat
  • Others
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