QD-OLED vs WOLED: The TV Panel War Explained

The OLED TV market has split into two competing technologies, each championed by a Korean electronics giant. LG uses WOLED (White OLED), the technology that pioneered consumer OLED TVs. Samsung uses QD-OLED (Quantum Dot OLED), a newer approach that addresses some of WOLED's limitations. Here's what the differences actually mean for your viewing experience.

How WOLED Works (LG)

LG's WOLED panels use white-emitting organic LED sub-pixels with color filters on top. Each pixel has four sub-pixels: red, green, blue, and white (WRGB). The white sub-pixel passes through colored filters to produce the desired color, while the unfiltered white sub-pixel adds brightness.

Manufactured by: LG Display (supplies panels to LG, Sony, Vizio, and others)

Found in: LG C4 OLED, LG G4 OLED, Sony Bravia XR A95L (some models), Vizio OLED

WOLED Strengths

• Mature technology — 10+ years of refinement
• Perfect blacks — pixels turn completely off
• Wide viewing angles — color accuracy maintained off-axis
• More size options — available from 42" to 97"
• Lower cost — manufacturing scale reduces prices

WOLED Weaknesses

• Color filter absorbs light — reduces brightness and efficiency
• Peak brightness — lower than QD-OLED (1,000-1,500 nits vs 2,000+ nits)
• Color volume — colors desaturate at high brightness levels

How QD-OLED Works (Samsung)

Samsung's QD-OLED panels use blue-emitting organic LEDs with quantum dot (QD) color conversion layers. Blue light passes through red and green quantum dots to produce those colors, while blue light passes through directly. No white sub-pixel, no color filters.

Manufactured by: Samsung Display (supplies panels to Samsung and Sony)

Found in: Samsung S90D OLED, Samsung S95D OLED, Sony Bravia XR A95L (some models)

QD-OLED Strengths

• Higher peak brightness — quantum dots convert light more efficiently than filters
• Better color saturation at high brightness — colors stay vivid in HDR highlights
• Superior color volume — wider color gamut maintained across all brightness levels
• No color filter loss — every photon contributes to the image

QD-OLED Weaknesses

• Newer technology — less refinement, potential for more rapid degradation
• Limited sizes — currently 55", 65", and 77" only
• Higher cost — Samsung charges a premium for the newer tech
• Text fringing — early QD-OLED panels showed colored fringing on fine text at the sub-pixel level (largely addressed in 2024+ panels)

Side-by-Side Comparison

| Feature | WOLED (LG C4) | QD-OLED (Samsung S90D) | |---------|-------------|---------------------| | 55" Price | $1,196 | $1,297 | | Peak Brightness (HDR) | ~1,000 nits | ~1,500 nits | | Black Level | Perfect (0 nits) | Perfect (0 nits) | | Color Volume | Very Good | Excellent | | Viewing Angles | Excellent | Excellent | | Gaming Features | 4x HDMI 2.1, 144Hz | 4x HDMI 2.1, 144Hz | | Burn-In Risk | Low (with prevention) | Low (with prevention) | | Anti-Reflection | Standard (C4), excellent (G4) | Excellent (S95D) |

Which Should You Buy?

Buy WOLED (LG) If:

• You want the best overall value (LG C4 is cheaper than Samsung S90D)
• You watch in a darker room (WOLED's perfect blacks shine in dark environments)
• You want the widest selection of sizes (42" through 97")
• You value the mature, proven technology
• You want LG's webOS platform (arguably the best TV OS)

Buy QD-OLED (Samsung) If:

• You watch in a room with some ambient light (higher brightness helps)
• HDR content is a priority (QD-OLED's bright, saturated HDR highlights are stunning)
• Color accuracy at high brightness matters (photography, cinematography enthusiasts)
• You prefer Samsung's Tizen platform
• You're willing to pay a modest premium for the latest panel technology

What About Sony?

Sony sources panels from both LG Display (WOLED) and Samsung Display (QD-OLED) and applies its own processing. The Sony A80L uses WOLED; the Sony A95L uses QD-OLED. Sony's image processing is widely regarded as the best in the industry, so a Sony WOLED often looks better than a non-Sony QD-OLED despite using "inferior" panel technology.

The Future

LG is developing MLA (Micro Lens Array) technology that significantly increases WOLED brightness — the LG G4 with MLA achieves 2,000+ nits, closing the brightness gap with QD-OLED.

Samsung is expanding QD-OLED sizes and reducing manufacturing costs. By 2027, QD-OLED is expected to be price-competitive with WOLED across all sizes.

Both technologies deliver picture quality that would have been unimaginable five years ago. The differences between them, while measurable, are subtle in real-world viewing. Choose based on price, size availability, and platform preference rather than agonizing over panel technology.

Read our full OLED TV guide →

Read our full TV comparison →

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