Laser TV Screens

In short: CLR and Fresnel screens are special contrast screens for ultra-short-throw and laser TV projectors.

• CLR – best black levels, wide viewing angle, ideal for living rooms and home cinemas (even in moderate daylight).
• Fresnel – maximum brightness, made for very bright rooms, but with a narrower viewing angle.

How a CLR screen works in detail

CLR stands for Ceiling Light Rejecting. The basic principle: thousands of fine horizontal micro-slats are embedded in the fabric surface at a 45-degree angle. Their white-coated underside reflects the light coming obliquely from below from the Laser TV or UST projector directly to the viewer. The black-tinted top side absorbs ceiling light while simultaneously preventing the projection light from being reflected upwards onto the room ceiling. The grey base material of the fabric also contributes to the contrast: it absorbs some of the ambient light, thereby noticeably improving the black levels compared to a white projection surface.

There are significant differences in the quality of CLR fabrics. In simpler fabrics, manufacturing tolerances in the slat angle or a less thoroughly blacked top side can reduce the on-screen contrast. Scratch sensitivity also varies: even light scratching can leave visible image defects on cheap CLR screens. High-quality models use more durable slat materials, more uniform angle alignment, and more consistent light distribution across the entire image area. Therefore, pay attention to brand quality – the price difference pays off in the long term in image quality.

Fresnel as an alternative: When it is worth it

In addition to CLR, there are Fresnel screens that use semicircularly arranged microstructures. They filter scattered light not only from above but also from the side, thereby achieving higher image brightness. Modern soft Fresnel models have largely eliminated the weaknesses of earlier hard screens – poor black levels, strong ceiling reflections, narrow viewing area. However, Fresnel remains a special solution: The viewing angle is narrower than with CLR. The technology is particularly worthwhile when the room is very bright during the day and evening use is not the main focus – for example in offices or living rooms with large windows.

Fresnel frame screens from our range:

• celexon Bright Onyx (Fresnel frame screen, also available in 90 inches) – combines the contrast of a CLR screen with the higher brightness of a Fresnel: gain of 1.0 (brighter than a classic CLR screen) with comparable vertical light rejection and the best horizontal light absorption of the tested laser TV fabrics. The perfect screen for light-flooded rooms.
• XGIMI 100" UST-ALR screen – gain 1.4 with high ambient light suppression, if a larger diagonal beyond the frame dimensions is required.

CLR or Fresnel – decision aid based on room situation

Which technology is suitable depends primarily on your lighting conditions and viewing habits: Those who watch in the evening and in moderate daylight are better off with a CLR screen; in permanently very bright rooms, Fresnel plays to its strengths. The following table shows the most important differences in direct comparison:

Construction types compared: Which installation suits your room?

Frame screen – for the permanent home cinema

• highest flatness and thus best image sharpness
• permanently mounted on the wall
• first choice if the screen can stay in its place

The frame screen permanently stretches the CLR or Fresnel fabric over a fixed frame and is mounted on the wall like a large-format picture. High-quality models use a tension system with double mounting points and adjustable springs – particularly important for laser TV screens, because the steep projection angle makes even minimal waves visible as distortion.

Motor screen – if the screen should disappear

• retracts from the housing via remote control, trigger or smart home
• completely invisible when not in use
• needs a tab-tension system for the necessary flatness

The motor screen (electric screen) retracts from a housing on the ceiling or wall – an elegant solution for living rooms where the projection surface should not be permanently visible. A tab-tension system is crucial: Side pull cords keep the sensitive slat fabric under constant tension. Without tab-tension, a motor screen does not achieve the flatness required by a laser TV for a sharp image.

Floor scissor screen – maximum flexibility

• stands freely, without wall or ceiling mounting
• ideal for rental apartments and rooms with changing uses
• can be compactly stored after the presentation

The floor scissor screen retracts upwards while standing freely – without drilling, without mounting. Some models integrate a decorative housing or can be built into furniture; celexon has already developed custom-made solutions together with Kettnaker and USM Haller. Feel free to contact us if interested.

Choosing the right screen size and viewing distance

The largest screen is not automatically the best choice – an image that is too large can be just as straining at a short distance as one that is too small. The right image diagonal depends on the viewing distance, the room size, and the projection range supported by your laser TV. Common sizes for laser TV screens are 92, 100, 120, and 130 inches. We explain which screen size suits your setup with a size and viewing distance table in our screen buying guide.

Gain, flatness, and compatibility – the most important buying criteria

The gain value indicates how strongly the screen concentrates the projector light towards the viewer compared to a diffusely scattering reference surface. CLR screens typically have a gain of 0.5 to 0.8: they deliberately absorb some of the light to increase black levels and contrast. Fresnel screens achieve a gain of 1.0 to 1.4, which means more image brightness – but with a narrower optimal viewing angle. For most living room setups with one or two seating positions in front of the screen, this compromise is not a disadvantage.

The flatness of the fabric is more critical for a laser TV screen than for any other type of screen. While light hits relatively flatly in classic front projection, an ultra-short-throw projector projects extremely steeply from below – even the smallest waves or sags are thus displayed as visible image distortion. That is exactly why material quality and a good tension system are significantly more important and elaborate here than with a normal screen: they are the reason a good UST screen has its price.

Pay attention to compatibility: CLR and Fresnel screens work exclusively with ultra-short-throw projectors. They are not suitable for short-, medium-, or long-throw projectors – other ALR technologies are used here. You should also not use your laser TV with a conventional contrast screen for front projection: Its reflection properties are not tuned to the UST projection angle and deliver a significantly worse result.

Frequently asked questions about CLR and laser TV screens

What is the difference between CLR, ALR, and Fresnel?

ALR (Ambient Light Rejecting) is the umbrella term for all screens that specifically reject ambient light. CLR and Fresnel are two ALR designs specifically for ultra-short-throw projectors: CLR works with horizontal micro-slats and rejects ceiling light above all else (best black levels, wide viewing angle). Fresnel uses semicircular microstructures, rejects light from the side as well, and is brighter, but with a narrower viewing angle. For light coming in from the side from windows, there are additionally ALR fabrics for classic front projection – however, these are not suitable for UST projectors.

CLR or Fresnel – which screen suits my laser TV?

For the classic home cinema, which is used in the evening and in moderate daylight, a CLR screen is the right choice: best black levels, natural colors, wide viewing angle for multiple seats. A Fresnel screen like the celexon Bright Onyx is recommended for rooms with a permanently high proportion of daylight, where viewing mainly takes place during the day – it is brighter, but should be viewed as frontally as possible.

Does a CLR screen work with every projector?

No. CLR and Fresnel screens are designed exclusively for ultra-short-throw and laser TV projectors, which project the image steeply from below at a short distance. They do not work with a conventional projector with a larger projection distance: Its light hits the microstructure at the wrong angle, and the image becomes dark and uneven. For such projectors, there are separate daylight and contrast screens.

What size does my laser TV screen need?

Common sizes are 92, 100, 120, and 130 inches. The deciding factors are the viewing distance and the projection range supported by the projector – a UST projector creates a certain diagonal only within a narrow distance window to the wall. As a rule of thumb, the viewing distance should be about 1.2 to 1.5 times the image width. You can find a size table based on viewing distance in our screen buying guide.

Can I also use a CLR screen in daylight?

Yes – that is exactly what it is made for. A CLR screen rejects ceiling light and keeps the image high in contrast even with room lighting or daylight on. In very bright rooms with direct sunlight, the brighter Fresnel variant plays to its strengths. You do not need to completely darken the room for a laser TV screen in any case.

How do I clean a CLR screen?

Carefully and as rarely as possible. The slat fabric is sensitive to scratches – never rub or wipe with damp cloths. It is best to remove dust without touching it with slightly blown-out compressed air or a very soft, dry brush, always in the direction of the slats. In addition, follow the manufacturer's care instructions.

Buying a laser TV screen – what should I pay attention to?

Four criteria decide: Technology (CLR for the home cinema, Fresnel for very bright rooms) · Construction type (frame for best flatness, motor for hiding, floor for maximum flexibility) · Flatness (critical for UST – prefer a tension system) · Size (matching the viewing distance and projection range of your projector). If you are unsure which combination suits your room and projector, we will advise you personally.

Buy a laser TV screen at Beamer-Discount

With the right CLR or Fresnel screen, you get the full potential out of your laser TV – a large, high-contrast image that impresses even in daylight. At Beamer-Discount, you will find both technologies from celexon and other leading manufacturers – as frame, motor, and floor screens in common sizes.

It is best to think about the projector, screen, and installation together from the start: We plan your home cinema or conference room as a coordinated overall system – tailored to the room, lighting conditions, and use, from a single source.