Optical Bonding

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Advantages Of Optical Bonding

sentiment:274 Published time :2020-12-23 23:03

The optical bonding technology uses optical glue to completely bond the touch screen glass and the LCD panel seamlessly. This technology improves the overall performance, makes the display more sturdy, and reduces the overall weight. The common bonding technology in the industry is frame bonding, which uses adhesive tape to bond the touch screen glass to the four sides of the LCD panel. This method creates an air layer between the glass and the panel. No matter how thin the air layer is, it may affect the performance of the display, such as the durability of the glass, touch accuracy, and viewing angle limitations. The optical bonding technology of the display has many advantages, which enhance the performance of the interactive touch screen and can meet the needs of a wider range of applications.


1. Improved durability

For optical bonding solution, due to the hardened adhesive behind the glass has a shock-absorbing effect, it can protect the touch screen glass and LCD panel from impact, and is not easy to suffer damage due to vibration or collision, which is good for transportation applications and improves impact resistance by 300%. Super mechanical strength resists vibration, low air pressure, and extreme weather effects. Even if the glass is damaged, the glass fragments will still stick to the optical glue without peeling off, so as to prevent users from being injured. It is suitable for environments with safety concerns, such as classrooms, conference rooms, etc.




2. Great viewing experience

The optically bonded display can reduce the refraction of the medium between the touch screen glass and the LCD panel, which can greatly reduce light reflection and reduce the loss of transmitted light to increase brightness, which can improve contrast and reduce parallax, the viewing experience is better in a bright environment, and the outdoor readability is increased by 400%. In addition, the optical bonding technology brings a wider perspective, whether it is sitting in the front corner of the classroom or the front of the meeting room, everyone can clearly see the screen without reflection.


3. Improve the touch experience

Optical bonding can reduce parallax. Light refraction will cause the physical position of the pen or finger on the touch screen glass to be different from the corresponding position on the LCD panel due to the different position of the line of sight, which will cause inaccurate touch and poor user experience. The optical bonding has no air layer, eliminating parallax problems, and providing the most natural and reliable user experience with the most precise touch.

At the same time, optical bonding can reduce noise interference. The close integration of the touch screen and the display panel can not only increase the strength, but the optical bonding can effectively reduce the interference caused by noise to the touch signal and improve the smoothness of touch operation.


4. Completely dust-proof and moisture-proof

Since there is no air layer between the glass and the LCD panel in the optical bonding display, dust and moisture will not penetrate the glass and condense on the inner surface of the glass. This is especially important in humid environments, where high humidity may cause fogging of non-optically bonded displays over time. In the process of transportation and storage, the full lamination technology can ensure that the display screen can be in the best condition for a long time.

5. Reduce the weight of the display

Because of the support of the adhesive, thinner glass can be used in the manufacturing process. The touch screen and the display are bonded with optical glue, which only increases the thickness of 25μm-50μm; it is 0.1mm-0.7mm thinner than the ordinary bonding method. The thickness of the module provides greater flexibility for the structural design of the whole machine, and the thinner body improves the product grade, highlights the technical content, and does not have to worry about the fragility of the glass. At the same time, the total weight of the display is greatly reduced, which is also more conducive to transportation.


6. Simplify assembly.

The assembly of the optically bonded module and the whole machine can be directly fixed by means of buckles or locking screws, which reduces the assembly problems caused by the deviation of the fit, and at the same time simplifies the assembly process and reduces the assembly cost. The optically bonded module does not need to consider dust and water vapor, so the CTP LENS frame does not need to consider the bonding width, and can achieve a narrower frame. At the same time, because the double-sided bonding strength is not considered, it also contributes to the narrow frame design, and the frame can be made narrower.