QuantumBlack film clears the purple tint from QD-OLED
QuantumBlack film clears QD-OLED’s purple tint in lit rooms. BlackShield, DarkArmor and ObsidianShield are the same optional Samsung Display layer. It lifts hardness from 2H to 3H and fights scratches 2.5x better. Blacks stay closer to black when room light hits the quantum-dot stack.
Key Takeaways
- BlackShield, DarkArmor and ObsidianShield are the same Samsung Display film.
- QD-OLED blacks go purple when room light hits the quantum-dot layer.
- The film lifts hardness from 2H to 3H and fights scratches 2.5x better.
- Gen 4 and Gen 5 can add it, but not every 2026 model has it.
- AGLR matte is a separate factory coat for glare-heavy desks.
What is QuantumBlack film on QD-OLED?
Samsung Display makes every QD-OLED monitor panel on the market. Asus , MSI and Gigabyte all buy that same glass, then choose the coat and the name.
Every QD-OLED panel starts with a semi-glossy finish that looks glossy and stays sharp, and that base coat cuts some glare. Room light can still fade QD-OLED blacks.
QuantumBlack film is Samsung Display’s optional 2026 coat. Brands can add it on Gen 4 and Gen 5 panels. Some spec sheets list it as Black AR. You pick this film when you buy the screen, since it is built in at the factory.
Samsung Display dropped its own generation names in 2025. Gen 4 and Gen 5 are labels from TFTCentral’s QD-OLED generations FAQ , so you can tell later panels apart.
QuantumBlack film improves panel hardness from 2H to 3H, improving scratch resistance by 2.5x. It also helps improve ambient light handling, helping blacks look darker in the presence of ambient lighting and helping to eliminate the purple tint that impacts QD-OLED panels.
Those scores are Samsung Display specs reported through TFTCentral. No outside lab test is cited there.
The film came in the same 2026 panel wave as V-Stripe RGB sub-pixels. Samsung Display’s newsroom release says the company began mass supply of 34-inch 360Hz V-Stripe QD-OLED to seven monitor brands in 2025. Asus, MSI and Gigabyte are on that list. QuantumBlack is still a separate coat on those panels.
Why QD-OLED blacks turn purple in ambient light
QD-OLED has no polarizer, the filter layer other OLEDs use, so room light hits the quantum-dot stack straight on and blacks fade further than they do on WOLED under the same lamp.
Black areas climb toward grey with a purple tinge when the room is bright. The shift mostly goes away when you turn the lights off.
The glossy vs matte WOLED coating test measured that fade on QD-OLED without this film. That test put black depth at about 3.1 times the matte WOLED figure once a lamp hit the screen. A higher number means a worse fade.
Grain from a matte coat and the shape of glare are a different problem. The purple cast comes from the quantum-dot layer reacting to light from the side.
QuantumBlack is meant to block that extra light path, which is why a stick-on screen guard cannot do the same job.
BlackShield, DarkArmor and ObsidianShield are one film
All three brand names point at the same optional Samsung Display layer.
| Brand | Shop name | What to search |
|---|---|---|
| Asus | BlackShield Film | BlackShield |
| MSI | DarkArmor film | DarkArmor |
| Gigabyte | ObsidianShield | ObsidianShield |
| Any brand | QuantumBlack / Black AR | QuantumBlack, Black AR |
Search the product page for any of those four strings before you buy. If none show up, treat the screen as semi-glossy QD-OLED without QuantumBlack. A review can still prove the film is there if the spec sheet is silent.
QuantumBlack film vs AGLR matte on QD-OLED
Samsung Display’s other 2026 choice is AGLR, short for anti-glare low-reflection. The panel maker puts this matte coat on office screens that have to fight glare.
| Coating | Hardness | Scratch claim | Purple-tint fix | Glare handling | Typical buyer |
|---|---|---|---|---|---|
| Semi-glossy default | 2H | Base | No | Cuts some glare, blacks still fade | Dark or mixed rooms that want a sharp look |
| QuantumBlack | 3H | 2.5x better | Yes | Still semi-glossy, darker blacks in room light | Mixed light where purple blacks bother you |
| AGLR matte | Not stated | Not stated | Not claimed | Matte coat made to cut glare | Office desks with windows and lamps |
Some early Samsung Electronics QD-OLED screens added a matte AG layer on top of the semi-glossy panel. AGLR is different because the panel maker applies it at the factory.
TFTCentral’s FAQ does not say whether AGLR and QuantumBlack can share one panel. Until a spec sheet lists both, treat them as two separate factory choices.
Buy AGLR for a bright office with windows behind you. If your room light is mixed and the purple blacks bother you, check the spec sheet for QuantumBlack.
Which 2026 QD-OLED monitors ship with QuantumBlack?
TFTCentral says modern Gen 4 and Gen 5 panels use the film widely. A 2026 model year does not mean you get it.
Samsung Display started shipping 34-inch 360Hz V-Stripe QD-OLED to seven brands in 2025. Asus, MSI and Gigabyte are three of them. The release did not name the other four brands.
The new 34-inch 360Hz panel is a Gen 5 part in TFTCentral’s table. V-Stripe lines red, green and blue in vertical stripes so text edges look clean, and QuantumBlack does not change that pixel grid.
LG’s 27-inch 4K OLED uses a true RGB stripe to clean up text edges the same way. Samsung Display’s 1,300-nit peak on the 34-inch V-Stripe panels comes from the Penta Tandem brightness stack.
No SKU list appears in the FAQ or the supply release, so the product page is where you have to check.