optically bonded lcd monitors factory

TFT LCD monitors are susceptible to glare and reflection from direct sunlight or high-bright applications. In almost all TFT LCDs there is an air gap between the TFT panel and the cover lens. Having an air gap causes repeat refraction between each component level of the display when in high-brightness installations. Reducing the reflection inside these components with optical bonding gives greater contrast and makes the screen more viewable in outdoor or high bright conditions without the need to increase the brightness of the screen itself.

Optical bonding is a process where a layer of resin is applied between the glass or touchscreen and TFT LCD TFT panel of a monitor, bonding them to make a solid laminate with no gaps or pockets of air. When choosing a screen for any project, you should evaluate the environment and operating conditions the screen will have to endure. Industrial grade screens and panel PCs are made rugged with all types of features available to withstand any type of application. One such feature available to consider is optical bonding.

When LCD displays are manufactured, including touchscreens, the front glass of the screen is layered onto the LCD module. This doesn’t present a problem in standard viewing environments, however in certain conditions, like with outdoor placement, the tiny gap between the 2 layers can impair viewing performance.

The display from an non-optically bonded monitor is created by the light of the LCD reflecting through the gap and then the outer glass of the screen. The light is interrupted and bends when it passes through the gap and glass of the screen and some of the light is actually reflected back to the LCD module, this is called refraction. This refraction through the layers impairs the intensity and clarity of the end image and thus lowers brightness and readability. By bonding the LCD module and glass together you remove the interruptions and chances for the light to be reflected back. More light gets through to the surface of the screen and therefore the image is brighter.

The same principle is applied when an external source of light hits the screen. With an non-bonded screen, the gap between the glass and LCD module creates opportunities for refraction which bounces external light back off the screen to the viewer as glare. When bonded together the light passes through the bonded layers and is absorbed somewhat into the screen. Optical bonding is therefore important in making screens sunlight readable.

The most obvious benefit to adding a resin bonding layer between the glass and LCD module is that it physically prevents dust and liquid ingress from getting between the two. The quality of manufacturing means that dust and water isn’t a big problem for screens in standard environments. What can be a problem however is condensation getting between the glass and LCD panel in environments with wide temperature ranges or fluctuating humidity. Condensation can cause screens to become foggy from moisture that penetrates the air gap. Again, the physical filling of the gap prevents this problem from arising. Optical bonding should therefore be considered for any outdoor application as well as indoor applications where consistent temperatures aren’t maintained.

Assured Systems are partnered with design and manufacturers industrial displays with optically bonded touch screens request, their displays or touchscreen displays can be optically bonded to remove the air gap inside the screen. If you require an optically bonded display or optically bonded panel PC please get in touch with Assured Systems.

There are many benefits to the optical bonding method of integration vs. traditional gasket attach methods,someof the most notable being the enhanced optics and improved impact strength. Optical bonding is the process of attaching thecover layerdirectly to an LCD display using alayer of optical grade adhesive. The intent is to strengthen theimpact resistance of thedisplay and vastly improve its overall performance, readability, and touch-point accuracy by bridging the gap between thecoverlayer and the display.

Optical bonding reduces the internal reflections between the LCD and cover substrate (glass, plastic, filter, touch panel) since the bonding adhesive creates a matching refractive index between the LCD and substrate. Reducing internal reflections increases the contrast and viewability, which enables displays to be more readily seen in bright ambient conditions (such as outdoor sunlight), without increasing backlight brightness and the accompanying higher power and operating temperatures.

Optical bonding dramatically increases both physical durability and impact resistance.Unlike traditional, unprotected LCDs, optically bonded displays can have a cover glass that protects the display from rain, dust, snow, hammers, screwdrivers, etc.  Adding custom cover glass, touch screens, optical filters, optical coatings, and other enhancements with optical bonding creates a durable and complete rugged solution.

Traditional touch screen configurations are only bonded from the sides and leave a massive gap in the middle that allows dust, dirt and moisture to get in and destroy the display from within.The optical adhesive fills the gap between the substrate layer and LCD, preventing contaminates from impacting the display viewability. Condensation or impurities can render the display unreadable.

For touch monitors, the panel thickness influences touch accuracy and can affect usability with both touch pens and bare hands. A touch monitor with optical bonding maintains consistently accurate touch response making it easy to use and reliable.

The process of applying adhesive tape to the edges of a touch panel that allows the cover lens to be bonded to the display. This process leaves an air gap between the touch panel and display cover lens. This process increases glare and reflections while also leaving the display susceptible to moisture and impact damage.

A combination of LOCA and OCA optical bonding. The liquid optically clear adhesive is dispensed to a touch sensor, next to the touch sensor and display are sealed together in a vacuum chamber, then the entire display is cured under UV light. This method of optical bonding provides the same benefits but is used with only certain display applications.

The E3 adhesives are designed using a low stress, low energy cure cycle which allows great flexibility in designing components and processes to maximize performance in optical bond LCD modules – especially using substrates such as touch screens, ITO, retarder films, and PMMA. Optical materials and components are compatibility tested to assure minimal negative interaction with the adhesive, cure cycle, and display constituents.

Adding custom cover glass, transparent heaters, optical filters, touch screens, and optical coating to your display solution will increase the ruggedization of your optically bonded display.

Optically bonding an LCD, OLED or Plasma display improves both optical performance and durability. By selecting an appropriate adhesive that matches the index of refraction of the flat panel and the overlay, General Digital is able to remove all of the air gaps, thus reducing the number of internal reflecting surfaces that can lead to degradation of optical performance. Providing a durable adhesion between the flat panel and the overlay improves the displays’ ability to resist shock, vibration and moisture.

On the practical side, the adhesive must also provide adequate bond strength, have a reasonable pot life after preparing, not present any health or safety issues, be available at reasonable cost from reliable sources, and cure to the proper finished bond condition using temperatures and times that are friendly to optical bonding facilities. Fortunately, there exist a relatively large number of choices. Typical bonded overlays include contrast enhancement filters, EMI/RFI filters, vandal shields, touch screens, and thermal heaters.

Bonded display assemblies mimic shatterproof glass. Although the bonded overlay can fracture from impact, the adhesive prevents/minimizes broken pieces from becoming airborne and endangering the operator and other nearby personnel.

The in-the-frame design is currently in limited production, primarily for avionic applications. The adhesive is epoxy, which was selected so that the bezel could be affixed to the display’s metal frame, with the bonded antireflective glass extending into the opening, reducing any issues of viewing angle and parallax to the display.

One drawback to the under-the-frame and in-the-frame bonds is that they are not suitable for making a liquid-proof seal to the bezel of the monitor. To accomplish this, monitor builders usually prefer to form a seal to the antireflective glass. In this case, an over-the-frame bond is necessary. This bond design is also required in the case of an optically bonded touch sensor. The details of the bond may vary slightly, depending on the nature of the overlay. However, in general, an appropriate gasket is placed onto the face of the OEM frame, forming a well-defined bond thickness and protecting the edge of the seal from abrasion.

It is, of course, possible to bond more than one overlay to the display. A specific example is the use of a conductive glass to control EMI, which is bonded to a touch sensor. As of this writing, General Digital Optical Bonding Laboratories has produced over 475 displays of this design for an aerospace application.

This bond design is the preferred over-the-frame bond. A gasket is applied between the LCD, OLED or Plasma display and the overlay and the space between them is then filled with adhesive.

Displays and touch panels are at their best when they perform with highly transparent, low-haze, and UV-resistant features. Adding an optically clear adhesive to your LCD’s stack up promotes these features. Liquid optical bond can prove to be expensive. OCA bonding is considered a safe and effective alternative to the liquid optical bond method. Like liquid clear adhesives, OCA reduces the reflection layers in a panel. There are various advantages to choosing OCA bonding as your preferred integration method. OCA bonding is clean, which eliminates the need to clean up residuals after the bonding process is complete. The process produces high yield and is repairable.

OCA bonding is thin, making it an ideal choice for rigid bonding and small LCD frames. Our OCA adhesives are precisely adjusted to fit LCD panels 12” or smaller. The material is considered a dry film, its pressure-sensitive application allows for precise and unique processing in which it fits into your industrial LCD. Although thin, bonding protects the LCD against environmental factors as well as foreign contaminants and abrasive material. Applications include laminating films to rigid or flexible substrates; laminating together two rigid substrates; bonding touch panels and cover lenses; bonding displays to cover lenses or touch panels.

Our experienced team services each industrial panel model individually to diagnose cover glass irregularities. After ensuring repairability, our professional team uses an advanced optically clear adhesive to fuse the LCD and new cover glass, creating a blemish and scratch-free surface. Our advanced OCA prevents and protects end-user’s industrial panels from further damage due to natural wear and tear.

Lowered optical clarity due to increase in glare layers: the addition of a single piece of glass will create two additional reflective surfaces which trap glare, not only from ambient light but can even produce glare from the actual LCD. Adding an AR film does not match the level of clarity and visibility achieved with OCA bond.

Optical bonding is the process of adjoining the LCD and touchscreen or cover glass together to create a single optical index. Put simply, the air gap between the LCD and the cover glass is eliminated, therefore benefiting the LCD’s optical functionality and reducing the number of reflection points. Creating this singular optical index adds clarity and viewability to the display’s screen. Our bonding is performed with a proprietary adhesive, which is solidified with a quick but reliable curing method.

Why add an optical bond to your display? Besides creating a single optical index, there are other benefits to adding an optical bond to your LCD. Most LCDs have plastic surfaces that are not vandal or weatherproof. This component is called a cover lens. The material does not hold up well against scratches or damages, leaving your LCD with large vulnerabilities. To protect your LCD display, you will need to install a cover glass or other strengthened polycarbonate material to the LCD for protection. Adding this hardened substrate will require a bond. Adding an optical bond improves resistance against shock and vibration, which benefits those using their display in a volatile or rugged environment. Lastly, eliminating the gap prevents dust, moisture and condensation ingression, keeping your LCD readability and clarity at superior levels.

Our optical bonding service is the most robust ruggedized bonding service AGDisplays has to offer. Augmented optical performance including increased luminance, increased contrast, and reduced internal reflections. Optical bonding creates superior LCD strength and prevents a shattering screen and less vulnerable to contamination and moisture. Increase the quality and lifespan of your LCD while keeping replacement costs low with this service. AGDisplays is capable of low and high volume production. Full lamination may include outer substrates consisting of adhesive and elements such as mesh and other optical films.

Our optical bonding method is performed in-house by a skilled technician on any sized LCD. Each LCD is carefully handled throughout the technical process. Quality assurance measures and testing are performed on each LCD to guarantee your specifications are met. We strive to meet the needs of medical, military and other specialty markets and ensure that each product maintains high quality standards.

When optical bonding is not practical for your LCD, AGDisplays offers tape, or perimeter, bonding. Perimeter bonding helps your company save on costs while still ruggedizing your panels sufficiently. Our tape bond services provide a secure bond that increases productivity, long-term durability and improved appearance. The adhesive offers a wide temperature specification, allowing durable placement of the touch screen to the LCD in various environments.

Our technical experts use a class 1000 clean room to manually perform each bond with precision. Manufacturing yield for perimeter bond is high and is a cost-effective & common solution. AGDisplays offers tape perimeter touch screen and shield front perimeter bonding. Consult AGDisplays today to speak with a representative about which option is best for your project. AGDisplays supports virtually any manufacturer of LCD and touchscreen. For cover glass shield protection, AGDisplays can work with your requirements to offer products and glass materials to achieve your exact requirement.

There are many different types of mechanism designs for LCD panels in the market: with metal frame, without metal frame (Black Tape), Open Cell, etc. AMT optical bonding can support all of them. Based on the structure and size of the touch panel and LCD panel, AMT will choose the most suitable thickness of SOCA for lamination. For optical bonding, AMT can provide Lucent Gel in different thicknesses, including 0.5mm, 0.8mm, 1.0mm, 1.2mm, and 1.5mm. If a thicker SOCA is required, we will discuss closely with the customers to fit their needs.

Some LCD panels on the market tend to have a narrow frame design. When the frame of the LCD panel is very narrow with a thicker SOCA, after optical bonding, a bright line at the edge of the active area might be seen when looking at the LCD panel sideways. AMT uses a special process and optical bonding technology to remove the bright line when you look at it sideways.

Some LCD panel bonding is not necessarily bonding a touch panel, it may use just a cover glass or other plastic material to protect the LCD panel. On the other hand, some products are designed with a three-dimensional plastic mechanism, which cannot use the usual flat lamination process. Not to mention the plastic material is easily deformed by the increase of temperature, and the black plastic mechanism absorbs all the light, and bonding material cannot be cured by UV during lamination. AMT optical bonding technology can provide an excellent solution for this kind of design. We have unique optical bonding technology with specially designed bonding jigs and Lucent Gel, which can work with plastic mechanisms or three-dimensional frames. We can also bond glass or other plastic materials to LCD panels.

In optical bonding, the jig design has a great impact on the bonding solution. AMT has strong jig design capabilities, we are equipped with a variety of tool machines for jig production. On top of that, AMT has a great reputation in experience, technology, and services in the touch-field. Our optical bonding is produced in high-quality, in-house, can be quickly bonded, and provides customers one stop service with comprehensive technical support. To further expand our optical bonding services, we have moved this factory team to our new additional branch-Xizhi in Taiwan. If your products have small orders or need short lead times, AMT is a great choice for you!

EIZO has an in-house production line for optical bonding - a method with which to provide increased visibility and durability to LCD monitors. Producing optical bonding in-house allows EIZO to continue to meet the needs of maritime, medical, and other specialty markets while ensuring each product maintains high quality standards.

There is a small gap of air that lies between the LCD module and the cover glass or touch panel of a monitor. Optical bonding is a process in which a layer of resin is used to fill the gap, adhering the two together.

By adhering the LCD module and panel together with optical bonding, the transmission of light is increased, improving the visibility of the display. This is useful when viewing a monitor with bright ambient lighting conditions.

Vartech’s VBOND Optical Bonding process reduces refraction and glare, prevents condensation, and increases the accuracy and durability of the LCD screen.

Optical bonding is the process of filling the air gap between the LCD and glass with an adhesive or resin, such as silicone. Once cured, the silicone adds multiple benefits to the bonded display such as light refraction (from both LCD back-light and outside light), durability against vibration, water, and dust resistant, improved touchscreen accuracy, and prevents fog and condensation in humid environments.

When LCD displays are manufactured, including touchscreens, the front glass of the screen is layered onto the LCD module. This doesn’t present a problem in standard viewing environments, however in certain conditions, like with outdoor placement, the tiny gap between the 2 layers can impair viewing performance.

Optical Bonding is available on our DiamondVue, All-Weather and ToughStation series of computers and monitors, as well as our ToughStation kiosks and hazardous area kiosks.

Accurate Touch Experience: For touch monitors, the panel thickness influences touch accuracy and can affect usability with both touch pens and bare hands. A touch monitor with optical bonding maintains consistently accurate touch response making it easy to use and reliable.

Increasing screen sunlight readability means to raise its extrinsic contrast ratio. It can be achieved by increasing LCD backlight or reducing the reflected light brightness, or both.

However, increasing the backlight, the power consumption also will rise; LCD heating will effect on its reliability. Consequently, reducing the reflected light brightness is the most effective way to tackle those problems.

Bonding touch screen or cover lens to the polarizer of LCD front side with clear optical adhesive. Since the refractive index of the optical glue is same to cover glass, both are 1.5, thus eliminating two reflective surfaces.the lower reflection, the higher contrast ratio is. Backlight 500 lumens can read in daylight; backlight 800 lumens can read under strong light.

We are industry leader offer the most advanced form of optical bonding. Applied between protective glass and touchscreen, plastic, filter, TFT LCD, or TFT panel.

Alibaba.com offers 233 optical bonding monitors products. such as return and replacement, call center and on-line technical support, and repair. You can also choose from led, lcd. As well as from new, stock, and open-box. And whether optical bonding monitors is for home and student, or industrial.

Optical bonding is an adhesive process used to bond a protective clear cover screen or layer to an underlying LCD panel. Use of this method of bonding will typically eliminate the air gap between the two layers, and can result in greatly improved screen visibility (see picture above). Silicone solutions, such as OCR (optically clear resin) or LOCA (liquid optically clear adhesive) are strong candidates to consider for optical bonding applications due to their overall design flexibility, as well as their tendency to remain clear over long time periods.

In a non-bonded panel, ambient light is reflected at both the front and rear surfaces of the coverlens and also from the front surface of the display immediately behind it. As much as 13% of ambient lightincident on the display surface can be reflected into the user’s eye.

Images shown on a monitor are reflections generated by light from the LCD module passing through the gap and the panel. The gap and panel have different refractive indexes, causing the light to bend when it passes through them. This results in a loss in its intensity, affecting the screen’s readability. By adhering the LCD module and panel together with optical bonding, the transmission of light is increased, improving the visibility of the display. This is useful when viewing a monitor with bright ambient lighting conditions.  In most cases, a rugged monitor acts as a second line of visibility. Optical bonding strengthens the ability to see data clearly on the screen in environments where it might be difficult to read.