Capacitive LCD Display: Touch Interaction

A capacitive LCD display is a display module that integrates capacitive LCD display technology with liquid crystal display technology. The capacitive LCD display uses a four-layer composite glass screen, with layers of ITO (indium tin oxide) conductive coating on its inner surface and interlayer. This structure enables the screen to sense changes in the human body's electric field, thereby achieving touch control. Capacitive touch screens leverage the conductive properties of the human body to read finger touches through changes in capacitance. It supports multi-touch and various gestures such as pinching, zooming, swiping, and scrolling, enhancing the user experience significantly.

Compared to LCD touch panels, capacitive touch panels (CTP screens) considerably improve the refresh rate and optical clarity, with an optical transmittance that can exceed 90%. Since they do not rely on pressure-based sensing, they can use a glass surface, which is more durable. Exson Tech offers standard projective capacitive LCD displays ranging from 0.96 to 43 inches and provides a wide range of choices for customer service. Product structures include G+G, GFF, GF, PG, and other options, with IC choices covering industrial control, medical equipment, and consumer uses. Optical treatments like AG, AF, and AR can also be applied for different applications, with all work fully customizable according to customer needs and requirements.

Advantages of Exson Tech's Capacitive LCD Displays

• Supports multiple gestures with multi-touch, making it more convenient to use

• Better image quality

  
  

• Excellent sensitivity

  
  

• Scratch-resistant

How Do Capacitive LCD Displays Adhere to TFT LCD Panels?

There are two bonding methods, frame adhesive bonding and optical adhesive bonding

Frame adhesive bonding uses double-sided tape to adhere the touch screen to the LCD frame

Optical adhesive bonding is a full bonding method with better light transmittance and image quality, using OCA adhesive

Application Fields of Capacitive LCD Displays

Smartphones and tablets

Provide an intuitive and convenient way of operation, supporting multi-touch, sliding, zooming, and other functions, greatly enhancing the user experience.

Industrial control

In industrial equipment, capacitive touch screens serve as human-machine interfaces, offering efficient and accurate control operations.

Medical equipment

In the medical field, capacitive touch screens are used to display patient information and operate medical devices, improving the efficiency and accuracy of medical work.

Public information query systems

In public places such as airports and train stations, capacitive touch screens provide convenient information query services.