OLED

Direct Answer

OLED (Organic Light-Emitting Diode) panels are self-emissive -- each pixel produces its own light and switches fully off for true black -- eliminating the backlight every LCD type requires. Response times run near-instantaneous, but organic material degradation makes burn-in a real, documented long-term risk.

Source: First practical device: Eastman Kodak, 1987 · Last reviewed Aug 28, 2026

Specs

Contrast Ratio	∞ : 1 (Infinite contrast)
Viewing Angle	178° / 178° (Flawless off-axis)
Response Time (GtG)	< 0.03–0.1 ms (Near-instant)
Color Gamut Coverage	100% sRGB / 98–99% DCI-P3 / 75–80% Rec.2020
Peak Brightness	800–1,300 nits (Small 3% window HDR) / 200–250 nits (Full field)
Burn-in Risk	Moderate (Requires pixel cleaning / static mitigation)
Backlight / Emissive Type	Self-Emissive Organic Diodes (No backlight)
Black Level / Minimum Luminance	Absolute Zero (0.000 nits, true black)

A 1987 Kodak Discovery

The first practical OLED device was built by Ching W. Tang and Steven Van Slyke at Eastman Kodak, published in Applied Physics Letters on September 21, 1987 -- work that grew out of research Tang had begun at Kodak in the 1970s. Unlike every LCD variant, which shutters light from a separate backlight, each OLED pixel is its own light source and can switch off completely, producing genuinely black pixels rather than a very dark grey, and switching state fast enough that response time is measured in fractions of a millisecond (LG cites under 0.01ms) rather than the several milliseconds typical of LCD.

That same organic material is also OLED's core long-term weakness: screen burn-in and gradual brightness degradation are real, documented characteristics, not a myth. Blue OLED subpixels degrade faster than red and green, gradually shifting a panel's color balance over years of use, and oxygen or moisture ingress can separately cause localized dark-spot degradation -- both inherent to organic emissive material aging, not manufacturing defects.