structure of touch screen optically bonded to LCD explained.
Between LCD & Touch Screen
structure of cover lens optically bonded to LCD explained.
Between LCD & Various Cover Materials
reflection index comparison between optical bonding and air bonding.
Reduced Reflections

Optical Bonding Solutions

  • To apply optical bonding, an agent is used, usually chosen between optically clear adhesive (OCA), or the liquid optically clear adhesive (LOCA), otherwise known as the optically clear resin (OCR).
  • The OCA or the LOCA is then filled between the touch screen and the LCD module, which is the most commonly use of optical bonding.
  • Whether OCA or LOCA is chosen depends of the application of the product or the LCD used.

  • By applying this process, the air gap is eliminated and therefor the reflective index is reduced and brightness of the display increased, resulting in enhanced visibility.

  • Besides of enhancing optical performances, it also provides multiple benefits such as increasing impact absorption and preventing moisture from forming inside the module's gap.

  • Which is why optical bonding is not only useful for applications that requires better performing display, but also a commonly sought out solution in applications demanding ruggedness or environmental resistance.

  • Miracletouch's provides in-house optical bonding services in our own facility located in Taiwan, where we also manufacture the touch screens.

  • Our total solution provides an high FPY rate and very cost effective reworking system.

  • Besides the standard solutions, we also provide UV resistant and wide temperature solutions for different applications.

  • Bonding methods may differs between resistive and projected capacitive touch screen and can be applied to products up to 24".

  • Please kindly contact our sales department for more details on our optical bonding services.