What is optical bonding and what are its advantages? The imp
2024-07-08 16:22
Optical bonding is the process of applying a layer of resin (OCR) or film (OCA) between the glass or touchscreen of a display and the LCD screen, bonding them together to form a solid laminate without gaps or bubbles. When choosing a screen for any project, you should evaluate the environment and operating conditions that the screen must withstand. Industrial-grade screens and tablet PCs are rugged and have all types of features to withstand any type of application. One such feature to consider is optical bonding.
The optical bonding process reduces refraction and glare, prevents condensation, and improves the accuracy and durability of LCD screens.
Optical bonding is the process of filling the air gap between the LCD and the glass with an adhesive or resin. Once cured, silicones provide several benefits for bonding displays, such as light refraction (from LCD backlight and external light), vibration resistance, water and dust resistance, improved touchscreen accuracy, and prevention of fogging and condensation in humid environments.
When manufacturing LCD displays (including touchscreens), the front glass of the screen is laminated onto the LCD module. This does not present a problem in standard viewing environments, but under certain conditions, such as outdoor placement, the slight gap between the two layers can affect viewing performance.
Benefits of Bonding:
Reduced Glare: The increased light transmittance of screens with optical bonding reduces glare from external light sources.
Enhanced Physical Durability: The additional resin layer in optical bonding also improves the physical durability of the screen.
Accurate Touch Experience: For touch displays, panel thickness affects touch accuracy and affects usability with a stylus and bare hands. Touch displays with optical bonding always maintain accurate touch response, making them easy and reliable to use.
Optical bonding is popular in the medical, military, transportation, and retail industries, which require higher performance touch screens and displays due to harsh environments. Optical bonding is suitable for industries that tend to use rugged touch screens and displays in high-reliability environments. The optical bonding process is particularly suitable for devices that operate outdoors or in well-lit environments, and it is more efficient.
In the field of optical bonding, machine vision technology plays a vital role. First of all, machine vision technology achieves image matching and comparison of product surfaces through high-precision image recognition and processing, thereby ensuring effective product inspection and quality control. Secondly, the use of machine vision technology in the production process not only improves production efficiency, but also significantly improves product accuracy, which is crucial to meet the demand for high-precision products in modern industry.
Specifically, the application of machine vision technology in optical bonding covers many aspects. For example, in the production and processing of capacitive touch screens and FPDs, the visual alignment system has become an essential technology for key process flows, which improves the yield rate and production efficiency of products by achieving high-precision alignment and bonding of key components. In addition, in the glass bonding process, machine vision technology is used for precise bonding accuracy detection, which raises the detection efficiency and accuracy to a new level and effectively avoids errors caused by human factors.
In short, machine vision technology plays an indispensable role in the field of optical bonding with its advantages of high precision, high efficiency and high stability. In the future, with the continuous advancement of technology and the continuous expansion of application fields, machine vision technology will play a more important role in the field of optical bonding, bringing more convenience and benefits to industrial production.