Optical bonding
Touch screen display technology with OCA lamination together, the cost may be a little higher but there will be no gap in the middle, which is waterproof, dustproof very good a programme, so the use of optical bonding is the best prevention.
Optical bonding capacitive touch screen is divided into two types of lamination, generally based on the LCD screen to determine what lamination. Because there are some LCD screen it is not suitable for OCA lamination way, like iron frame LCD must be OCR to achieve optical bonding.
Optical bonding TFT-LCD module can not only play a role in dustproof and waterproof, the saturation of the display colour is more full of effectively reduce the refraction and reflection of light, improve the display effect, especially in the bright light can be effectively avoided glare!
Tape bonding
Display touch screen frame paste with double-sided adhesive lamination, generally use the 3M glue, relatively speaking, the cost will be lower, the touch screen and the display will have a gap of 1mm between the lamination, if used outdoors or more humid environment will be easy to get into the water mist or dust.
If it is used outdoors, there will be some small droplets or dust between the touch screen and the LCD when the ambient temperature is low. So tape bonding are generally used indoors and the use of the environment is better.
Display and touch screen tape bonding together, which allows us to see the display screen with the brightness of the light is lower than the brightness of the reflected light. Reflected light makes white brighter and drowns out black and other colours. It makes the LCD screen poorly readable in bright light.
Optical bonding in the visual effect itself has a great visual effect, it looks like the texture will be more transparent, but the surface will look black. It is used outdoors without water mist and dust entering the middle of the touch display, and it is a good choice for outdoor or humid places.
Optical bonding touch screen display not only greatly improves the readability of the display in bright light, but also increases the reliability of the display in harsh environments.
Benefits of Optical bonding:
Optical bonding eliminates the gap between the touchscreen and the display, and the benefits of full bonding over tape bonding technology become apparent.
Improves sunlight readability by up to 400
Improves impact resistance by up to 300
Resistant to extreme temperatures
Enables lighter and thinner display designs
Resists condensation and fogging
Resistant to stains, dirt, dust, scratches and moisture