OCA sheet (Silicone/Acryl)

OCA (Optical Clear Adhesive) Sheet is a Silicone-based self-adhesive sheet for the Direct bonding process that is glued between the cover glass and display. This method is to eliminate the air gap so that it can provide perfect contrast and readability.

oca_01

Reducing the diffused reflection caused by the sunlight by removing the air gap with the application of OCA on the high reflex point—back of the tempered glass, the POL side—of the display device

Benefits
By removing the air gap between the tempered glass and the polarizer, brightness is improved. Improved brightness enables minimizing the loss of visibility. Better visibility under direct sunlight provides improved contrast in brightness. Possible to use in bad conditions including vibration and impact. Diffused reflection is minimized.

oca_02

– Improve the contrast range by minimizing the refraction of light occurred when the light of BLU passes the air gap.

The Principles of improvement in Picture Quality
– In the existing monitors, laptops, TVs, audio, video and navigation systems, different mediums exist between the tempered glass and the polarizer in the module structure. Such a structure causes lower brightness, the limit in improving picture quality visibility and viewing angle, and the diffused reflection caused by the sunlight. By applying OCA, such optical properties can be improved.
(available for TFT-LCD, STN-LCD, PDP, OLED and 3D-TV)

Advantage

  • Suitable to the outdoor or harsh environments with silicone’s core properties, like low conductivity, low chemical reactivity, thermal stability and ability to repel water etc
  • Excellent readability and contrast with anti-reflection and anti-glare features.
  • With different thicknesses of OCA films, different depths of the display can be implemented simply
  • No condensation nor fogging by eliminating the air gap
  • Providing robust construction by shock and vibration absorption
  • No yellowing for more than 10 years

Comments are closed.