Light reaches the layer
Suitable blue light from the screen or surroundings reaches the quantum dots inside the film.
RED LIGHT TECHNOLOGY
Red light converter technology for your iPhone.
A red light screen protector with a quantum-dot optical layer that turns part of incoming blue light into red light. Tempered glass for your everyday screen. No charging required.
How it works
HOW CONVERSION WORKS
How does a red light converter work?
Tiny particles called quantum dots absorb some incoming light and emit it at a longer wavelength. This process is called photoluminescence.
Some light is converted
The particles absorb part of that light and re-emit it as red light. The amount depends on the light reaching the material.
Red light emerges
The emitted light travels in several directions. Some reaches the edges, where it may be visible under suitable lighting.
BASE FILM CROSS-SECTION
PET carrier23 or 50 μm
Red-light quantum dots17 μm functional layer
PET carrier23 μm
Layer arrangement from the E60 / E90 technical sheets. Not to scale.MORE THAN A SINGLE LAYER
Changes the light. Covers the glass.
Light conversion, built in
A thin quantum-dot layer sits between supporting film layers. It responds to light reaching the material, so there is no battery to recharge or extra app to open.
Glass for the surface you use every day
Tempered glass adds everyday scratch protection. An oleophobic finish makes fingerprints easier to wipe away. The optical layer and protective surface do different jobs in one accessory.
Made to fit your phone
Choose your complete iPhone model name, then follow your kit’s cleaning and alignment steps. Check the touch response and case clearance after installation.
Clean. Align. Apply. ↗KNOW THE DIFFERENCE
Conversion, filtering or a screen setting?
Similar names can describe different approaches to light.
Light conversion
An optical material absorbs some incoming light and emits light at a different wavelength.
Blue-light filtering
A filter reduces transmission in selected wavelengths. Filtering alone does not mean blue light is converted to red.
A warmer screen setting
A display setting changes the light produced by the screen. It does not add a physical protective layer.
FOR THE DETAIL MINDED
The material, by the numbers.
HUIBAO material technical notes, based on sheets dated June 8, 2026. These specifications describe the named base films; the complete protector also includes glass and adhesive layers.
| Property | E60-01 | E90-02 |
|---|---|---|
| Red emission peak | 630 ± 5 nm | 650 ± 5 nm |
| Emission FWHM | ≤ 45 nm | ≤ 45 nm |
| Transmittance | ≥ 87% | ≥ 87% |
| Haze | ≤ 2% | ≤ 2% |
| Base-film thickness | 60 ± 5 μm | 90 ± 5 μm |
Transmittance and haze: ASTM D1003. Peak wavelength and emission width: luminance-meter method stated in the technical sheets. Base-film thickness is not the total thickness of a finished screen protector.
TECHNOLOGY QUESTIONS
Understanding what you see.
Does this film need a battery?+
The conversion layer is excited by incoming light. It does not have its own powered light source; emitted output depends on the light reaching the material.
Is a red reflection the same as red-light conversion?+
A reflection redirects existing light. Photoluminescence absorbs excitation light and emits light at another wavelength. A visible red edge alone does not measure the conversion efficiency.
Will my whole display turn red?+
A visible red edge does not mean the entire display becomes red. Appearance depends on the phone, brightness and surrounding light. After installation, check a white background, your usual photos and text at your normal brightness.
Can I keep using my case?+
Check that the case lip does not press against or lift the glass. Match the full phone model before ordering, and check the edges gently when you refit your case.
How does this compare with a red-light mask or panel?+
Masks and panels use powered light sources for dedicated sessions. This protector converts part of the light already reaching it. Its output depends on that incoming light; matching a wavelength alone does not establish the same dose or health effect.
HUIBAO MATERIAL SCIENCE
Look inside the Red Light layer.
Explore the E60 and E90 base-film grades, the PET and OCA constructions, and how quantum dots turn part of incoming blue light into red light. Our material guide explains the specifications in English and connects them to the questions that matter when choosing your iPhone protector.
Explore HUIBAO materials and technology ↗