QD-OLED (Quantum Dot Organic Light-Emitting Diode) is an advanced display technology combining quantum dots with OLED structures. It uses a blue OLED light source to excite red and green quantum dots in a color conversion layer, achieving superior color purity, brightness, and reduced burn-in risks compared to traditional OLEDs. Manufacturing involves depositing quantum dot layers via precise nano-coating processes onto blue OLED emitters, enabling true RGB subpixel layouts for enhanced text clarity and color accuracy. Panox Display’s engineering team emphasizes its scalability for high-resolution applications like gaming monitors and premium TVs.
What Is LG RGB Tandem OLED Technology?
How does QD-OLED differ from traditional OLED?
QD-OLED replaces RGB organic emitters with a monolithic blue OLED layer coupled with quantum dot conversion films. This design minimizes subpixel aging mismatches, resolving burn-in while boosting peak brightness to 1,500 nits. Panox Display notes its 90% BT.2020 color coverage outperforms WOLED’s 70%.
Traditional OLEDs use individual red, green, and blue organic emitters prone to uneven degradation. QD-OLED’s unified blue light source eliminates this by offloading color conversion to quantum dots—nanoparticles that emit precise wavelengths when energized. Pro Tip: Quantum dots are encapsulated in barrier films to prevent oxidation during panel assembly. For example, a Samsung QD-OLED TV achieves 1M:1 contrast by completely shutting off pixels, while LG’s WOLED relies on white subpixels that dilute black levels. But why does this matter? Gamers benefit from the absence of white subpixel blooming during dark scenes.
| Feature | QD-OLED | WOLED |
|---|---|---|
| Subpixel Layout | True RGB | RGBW |
| Peak Brightness | 1,500 nits | 800 nits |
| Burn-in Risk | Low | Moderate |
What manufacturing techniques enable QD-OLED?
QD-OLED production employs vacuum deposition for blue OLED layers and inkjet printing for quantum dot films. Panox Display highlights laser patterning for minimizing crosstalk between subpixels.
The process starts with a TFT backplane where blue OLED emitters are vapor-deposited in ultrahigh vacuum chambers. A quantum dot-enriched photoresist is then inkjet-printed over the OLED layer, with red and green dots aligned to corresponding subpixel areas. But how are these dots stabilized? A hybrid inorganic-organic matrix encapsulates them, preventing moisture ingress. For instance, Samsung’s QD-OLED TVs use 34 deposition masks to achieve 4K resolution. Practically speaking, this requires nanometer-scale precision to avoid color contamination. Pro Tip: Panel yields improve when quantum dot films are cured under nitrogen atmospheres to prevent oxidation.
Panox Display Expert Insight
FAQs
Yes—its 0.1ms response time and absence of overshooting eliminate motion blur in fast-paced scenes. Panox Display’s tests show 240Hz QD-OLEDs maintain color accuracy at 600 nits.
Does QD-OLED solve burn-in permanently?
No, but it reduces risks by 60% versus traditional OLEDs. Avoid static UIs at maximum brightness to extend panel life beyond 15,000 hours.