Window film service
Casper Cloaking Film
An architectural film that blocks LED screens from outside view while the glass stays virtually transparent. Anyone walking by sees only a black screen.
Interactive demo
Inside, the meeting. Outside, a black screen.
Switch your viewpoint. Casper stops visual hacking through glass walls without closing the room off.
Casper Cloaking Technology by Designtex
Open glass. Private screens.
Casper Cloaking Technology by Designtex is an innovative architectural film designed to protect sensitive information while maintaining an open, collaborative workspace. Installed on glass, Casper acts as a smart shield, blocking LED screens from outside view while remaining virtually transparent. Anyone walking by sees only a black screen, while everyone inside enjoys full visibility.
When coupled with a decorative pattern, it becomes a simple yet powerful solution for balancing transparency and data security. Ideal for conference rooms, offices, and any space where digital privacy matters, Casper helps create secure environments without sacrificing design.
Product information videos
Learn more about Casper.
FAQs
Everything about Casper.
Who installs Casper?
Although Casper is installed in a similar manner to a regular window film, its installation process requires additional knowledge. It’s a technology that is applied to glass, so it’s critical to use a professional installer who will accurately follow the installation guidelines. We highly recommend you use a company with an established record and proven ability to install Casper. Casper is typically installed by professional window film companies that install safety, solar and privacy window films.
How is Casper installed?
Casper is installed using a wet technique in which the film and the receiving glass surface are saturated with a mounting solution. The film is then positioned on the glass while the solution is removed with a squeegee. The adhesive dries and cures over several days before it completely sets.
Can Casper be removed?
Yes, Casper can be removed if desired.
Are there any maintenance requirements for Casper?
Casper generally requires no regular maintenance outside of typical surface cleaning protocols.
What types of screens can be cloaked with Casper?
Casper is compatible with most types of 40”+ wide LED displays that are commonly used in office environments, including computer monitors, televisions, and video walls. Displays below 40” in width either don’t cloak, only partially cloak, or cloak in different directions, even within the same model. We suggest you always test out the compatibility of your specific display with a sample.
What types of screens cannot be cloaked with Casper?
Casper does not work with analog devices, such as projectors and many older digital display technologies, like CRT and plasma screens. Always test the compatibility of your specific display with a sample.
How can I determine if my monitor is compatible?
Compatibility can be determined using a standard sample of Casper and holding it up in front of the display that needs to be cloaked.
Is there a database of compatibility test results?
No, the Casper Display Compatibility Database is no longer available. With the proliferation of new models and technologies, the best practice to ensure compatibility between Casper and your display is to test the display with a sample of Casper.
Are there any limitations to Casper?
Casper is limited in its ability to cloak some types of displays. It is designed to work with LED screens 40” and wider. Displays smaller than this dimension may or may not cloak. Casper will also not cloak most touchscreen, phone screens and other smaller devices.
Are there considerations to keep in mind regarding the viewing angle?
Casper will provide the best cloaking when the display is viewed directly in front of the display. Casper can change opacity depending on the viewing angle; it will not be fully opaque in all circumstances. As you move at an angle to the display, the degree of cloaking can reduce up to 3-5%. Casper is least successful when the viewer is very close to the glass and viewing it at an extreme angle. It is important to consider the specific layout and configuration of your office space when implementing Casper. For more information refer to this video.
Does Casper require any other films for it to work properly?
No, Casper works without the need for any other material or film on the glass or the display.
Can Casper be used with other glass films and privacy solutions?
Yes, Casper can be used with other privacy solutions, such as privacy films to enhance visual privacy in open plan office spaces. Casper should always be installed on the inside of the room with the display that you wish to cloak. It is critical that nothing interferes with, or comes between, the light from the display and the Casper technology on the glass.
Can Casper be used in other environments other than office spaces?
Casper can be used in any environment where information on large displays in meeting spaces is readily viewable by those outside the space. Some examples include hospitals, research facilities, educational settings and institutions.
Can Casper be removed?
Yes, Casper can be removed if desired.
Are there any maintenance requirements for Casper?
Casper generally requires no regular maintenance outside of typical surface cleaning protocols.
Our work
Casper Cloaking Film projects.
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