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No. 248-20, Xinsheng Rd., Qianzhen Dist., Kaohsiung City 806, Taiwan

+886-7-815-6666

FAQ Introduction

Introducing ALR Screen

1. What is ALR Screen? How it works?

An ambient light rejecting screen blocks more than 80% of environmental light, making it an effective solution for bright environments.

Common principles involve precise microstructure processing and special coating techniques to absorb and block ambient light, preventing it from reflecting into the viewer's eyes and enhancing contrast in bright rooms.

Common principles of ambient light rejection Common principles of ambient light rejection

It enhances the contrast and color vibrancy of the projected image, making it ideal for use in bright environments.

2. What’s the different between ALR projection screen and the ordinary projection screen ?

A good projection screen must have three key attributes: brightness gain (Gain), contrast, and viewing angle.

Among these, improving contrast in lit environments is the most challenging, which is why most projection screens require the lights to be turned off during use.

Contrast refers to the comparison between white and black areas on the screen. Higher contrast results in clearer images. Since projectors cannot produce black light, the screen plays a crucial role in achieving this effect.

IFT Technology utilizes advanced processing techniques, proprietary material research, and multiple screen patents to produce eco-friendly screens that protect eye health and provide an unparalleled viewing experience.

Brightness gain, contrast, and viewing angle

3. Benefits of using ALR screen?

  • Watching in the dark can cause eye fatigue, which may harm your eyes over time.
  • Video conferencing is becoming more common, and an ambient light rejecting screen ensures clearer visuals.
  • Ambient light rejecting screens provide over 10 times the contrast of regular white screens in bright rooms, with better results for higher-lumen projectors.
  • A high-quality screen allows your projector to perform at its best.
  • Unlike LED-backlit TVs, projection screens use reflected light, which is softer and free of harmful blue light and radiation, making it more comfortable for long viewing sessions.

(Official certification for reference)

Laser TV visual health certification Laser TV visual health certification

4. Regular Screen types?

Based on projector installation and characteristics:
  • Front projection screens
  • Rear projection screens
  • Ultra-short throw screens
Based on screen surface material:
  • Matte white screens
  • Gray screens
  • Metal screens
  • Pearl screens
  • 3D screens
  • Ambient light rejecting screens
Based on screen support structure:
  • Fixed frame screens
  • Motorized floor-rising screens (roll-up)
  • Motorized drop-down screens (roll-up)
  • Portable pull-up screens
  • Simple manual pull-down screens

5. How to select suitable projection screen?

Based on the configuration of the projector and screen, there are three main types: front projection, rear projection, and ultra-short throw projection.

Front projection
Front Projection
Ultra-short throw projection
Ultra-short Throw
Rear projection
Rear Projection

IFT Technology develops different ambient light rejecting screens for various projection methods. Feel free to contact us for demonstrations and recommendations for the most suitable screen.

6. Screen material introduction?

All screens manufactured by IFT comply with EU RoHS & REACH green environmental regulations for safe use:

Screen ProductDescription
CBSP, HBSPUltra-short throw screens made of multi-layer composite materials with PET as the base for excellent flatness. TPU microstructures ensure uniform reflection of projection light, and the ambient light blocking layer effectively blocks environmental light.
CBSPU-HUltra-short throw screens made of multi-layer composite materials with PET as the base for excellent flatness. UV microstructures enhance image detail, and the surface ambient light blocking layer effectively blocks environmental light.
HBSiUltra-short throw screens with the latest patented technology. PET base ensures excellent flatness, TPU microstructures, and special coating techniques significantly enhance screen brightness. The ambient light blocking layer effectively blocks environmental light, increasing contrast in bright rooms.
LLUAFront projection ceiling-mounted screens with thin PET base for excellent flatness and rollability, suitable for roll-up screens. UV louver design provides a viewing angle >170°, and AG anti-glare treatment prevents surface reflection, maintaining excellent visual effects and clarity.
LUGSFront projection tabletop screens made of PET + UV photosensitive resin composite ambient light blocking materials. High refractive index glass beads enhance screen brightness, providing soft and clear images.

7. Power Saving Appliances?

Comparison of power consumption between a 100-inch LED TV and a 100-inch projector.

Typical large LED TVs consume about 550~750W, while 2000~3000-lumen ultra-short throw laser projectors consume about 250~350W, resulting in approximately twice the energy efficiency.

8. Eye Careing?

The choice between a TV and a projector ultimately depends on your eyes.

Do you find it hard to sleep after watching TV or using your phone before bed? This phenomenon, known as "digital eye strain" or "computer vision syndrome," is caused by blue light emitted from screens, which can harm your eyes over time.

Most people spend about 10 hours a day in front of screens, whether working on computers, using phones, or watching TV. This lifestyle increases the risk of digital eye strain.

While laser projectors also emit blue light, the light does not directly enter the eyes. Instead, it is projected onto the screen, with some light refracted or diffused into the environment and some reflected into the eyes. This indirect light is softer, significantly reducing blue light exposure and the likelihood of digital eye strain.