UST Projector Screens — Does Your Projector Need a Special Screen?

If you own a UST projector — a Hisense laser TV, Samsung The Premiere, LG HU85, or any ultra short throw model — you need a UST-specific screen. Using a standard projection screen with a UST projector produces hotspots, colour banding, and uneven brightness. Here's exactly why, and which screen to buy.

Why UST Projectors Need Special Screens

A standard long-throw projector sits several metres from the screen and projects at a nearly perpendicular angle — light hits the screen surface head-on. Standard matte white and ALR screens are optimised for this geometry.

A UST projector sits 10–25 cm from the screen and projects at a steep upward angle — roughly 60–80 degrees from horizontal. The light hits the screen surface at a radically different geometry. Standard screens can't handle this: the angle creates severe hotspots where reflected light concentrates near the bottom of the image and falls off toward the top, producing an image that's dramatically brighter at the bottom than the top.

How UST Screens Work

UST screens use one of two optical technologies to handle steep projection angles:

Fresnel Optics (Flat Fresnel ALR)

A Fresnel screen uses concentric rings of prismatic micro-structures embedded in the screen surface. Each ring is angled to redirect light arriving from below (your UST projector) straight back toward the audience, while simultaneously absorbing light arriving from above (ceiling lights and ambient sources).

Fresnel screens provide excellent ambient light rejection and are suitable for most UST projectors with gain between 0.6–1.0.

Lenticular / CLR Optics

A lenticular screen uses horizontal micro-lens ridges that accept light from the extreme angle of a UST projector and focus it toward the audience. CLR (Ceiling Light Rejecting) screens add an additional layer that specifically absorbs downward ambient light from ceiling fixtures.

Lenticular CLR screens deliver higher gain (0.6–1.2) and better viewing angles than Fresnel screens, making them suitable for larger rooms with more off-axis seating.

Matching Your UST Projector to the Right Screen

Projector Type	Throw Distance	Recommended TrueThrow Screen	Price (CAD)
Laser TV (Hisense, TCL)	10–20 cm	Fresnel ALR UST or CBSP Carbon Black	$272–$416
UST Projector (LG, Epson)	20–35 cm	PET Crystal BSP or HBSP Premium	$348–$576
UST with bright room	Any UST	CBSP Carbon Black UST	$416
UST floor-rising (hidden)	Any UST	HBSI TPU Motorized Floor-Rising	$960

Standard Projector Screen vs UST Screen — Can I Just Use What I Have?

We get this question often. The short answer: no, not well. You can physically project an image onto a standard screen with a UST projector, but the result will be obviously inferior — uneven brightness, colour banding, and reduced contrast. The optical mismatch isn't subtle.

Some matte grey screens perform marginally better with UST projectors than white screens, but still fall well short of a purpose-built UST screen. If you're investing $1,500–$4,000 in a laser TV, spending $272–$576 on the correct screen is the right call.

Buying a UST Screen in

UST screens are frequently oversold at retailers — the same Fresnel ALR screen sold at $900+ at a specialty AV shop ships from TrueThrow for $272–$576 with free delivery to any region, no duties, and no brokerage fees.

TrueThrow's UST screen lineup covers every major UST projector category, with options for pure ambient light rejection (Black Crystal/CBSP), maximum brightness (HBSP), and concealed motorized installs (HBSI Floor-Rising).