# item.guide
Side-by-Side Comparison Panel Types

QD-OLED vs. TN

Comparing 2 standards across 8 specifications. 8 key differences identified.

Comparing:
QD-OLED
TN

QD-OLED combines a blue OLED light source with a quantum-dot color-conversion layer, an approach Samsung Display commercialized in 2022 -- as distinct from LG's older WOLED, which uses a white OLED source filtered through color filters. Reviewers report wider color volume as the main practical benefit.

View full QD-OLED spec sheet →

TN (Twisted Nematic) is the fastest and cheapest common LCD panel type, with response times as low as 1ms -- traded off against narrow, asymmetric viewing angles and noticeable color shift when viewed from above or below.

View full TN spec sheet →

Specification Comparison Table

8 Parameters
Parameter / Spec
Contrast Ratio
∞ : 1 (Infinite contrast) 1,000 : 1 (Static)
Viewing Angle
178° / 178° (Flawless off-axis) 170° Horizontal / 160° Vertical (Severe vertical shift)
Response Time (GtG)
< 0.03 ms 0.5–1 ms (Ultra-fast)
Color Gamut Coverage
100% sRGB / 99–100% DCI-P3 / 90% Rec.2020 90–95% sRGB / 70–75% DCI-P3
Peak Brightness
1,000–1,500 nits (HDR peak) / 250–300 nits (Full field) 300–400 nits
Burn-in Risk
Low-Moderate (Quantum dot layer, heat mitigation) None (Immune)
Backlight / Emissive Type
Blue OLED + Quantum Dot Color Converter Transmissive Edge LED
Black Level / Minimum Luminance
Absolute Zero (0.000 nits in dark room) Moderate (0.2–0.4 nits)