LUSA Privacy Technology
How LUSA Delivers 30° Privacy Protection Without Compromising 95%+ Screen Clarity
For years, privacy screen protectors have had one major drawback:
The better the privacy, the worse the screen looks.
A lot of users are familiar with the problem:
- Dim displays
- Washed-out colors
- Grayish whites
- Poor outdoor visibility
- More eye strain during long hours of use
Traditional privacy films may block unwanted viewing angles, but they often do it at the expense of the display itself.
And today, that trade-off no longer makes sense.
Your phone isn’t just a device anymore. It’s where you work, create, communicate, and spend hours every day.
That’s why at LUSA, we believe:
Privacy protection shouldn’t ruin the screen experience you paid for.
Why Most Privacy Screen Protectors Make Screens Look Dark
Most traditional privacy films use aggressive micro-louver technology to narrow the viewing angle.
In simple terms, they block light from escaping sideways so people around you can’t see your screen.
But there’s a downside:
The same structure that blocks side visibility also blocks part of the screen’s natural brightness.
That often leads to:
- Reduced light transmission
- Lower brightness
- Hazy visuals
- Poor color accuracy
- A dull, less premium display experience
This is why many privacy protectors feel noticeably darker compared to the original screen.
LUSA Takes a Different Approach
At LUSA, our goal isn’t simply to create the darkest possible privacy filter.
Our focus is balance.
We engineered our privacy glass to preserve:
- Front-facing clarity
- High light transmission
- Natural color reproduction
- Comfortable everyday viewing
while still delivering effective side-angle privacy protection.
Because in real life, users don’t just want privacy.
They also want a screen that still feels:
- Bright
- Crisp
- Clear
- Comfortable to use all day
Why 95%+ Light Transmission Matters
Light transmission determines how much of your screen’s original brightness actually reaches your eyes.
Higher transmission means:
- Better clarity
- More vivid colors
- Cleaner whites
- Improved outdoor visibility
- Less eye fatigue over time
Lower transmission, on the other hand, often creates that dark, grayish appearance many users dislike about traditional privacy films.
That’s why LUSA prioritizes maintaining over 95% light transmission whenever possible.
The result is a display that still looks natural and premium — even with privacy protection applied.
Why 30° Privacy Protection Is the Sweet Spot
Many brands try to advertise the narrowest possible viewing angle.
But extremely aggressive privacy angles often create new problems:
- Darker front-facing brightness
- Uneven screen visibility
- Reduced viewing comfort
At LUSA, we believe privacy protection should work naturally in everyday situations.
That’s why we optimized around a balanced 30° privacy angle.
This helps:
- Keep the screen clear from the front
- Block visibility from side angles
- Maintain a more comfortable viewing experience
Whether you’re:
- Working in a coffee shop
- Riding the subway
- Traveling through airports
- Handling personal messages in public
your screen stays more private without sacrificing usability.
Anti-Reflective Technology Also Plays a Big Role
Privacy isn’t the only thing that affects screen visibility.
Reflections from:
- Sunlight
- Overhead lighting
- Windows
- Bright indoor environments
can make screens harder to read even without side-angle viewing.
That’s why LUSA combines privacy technology with optical-grade anti-reflective coating.
Instead of creating a matte or blurry surface, our AR layer helps reduce unwanted reflections while preserving display sharpness and color clarity.
The result is a cleaner, more comfortable viewing experience in both indoor and outdoor environments.
Privacy Protection Shouldn’t Come at the Cost of Display Quality
Modern users expect more from their screen protectors.
Not just protection.
Not just privacy.
But a display experience that still feels premium.
At LUSA, we believe the best privacy glass should do two things at the same time:
Keep your screen protected from others
while making it feel just as good for you.
Because screen protection should never take away from the beauty of the display itself.





Why 95%+ Light Transmission Matters