QLED+
New gen wide color gamut backlight & quantum dots deliver authentic, healthy, eco-friendly QLED.
What is QLED？
QLED stands for Quantum Dot Light Emitting Diode. It's a display technology used in televisions and monitors. QLED TVs use quantum dots, which are semiconductor nanocrystals that emit specific colors of light when illuminated by a light source or an electrical current. QLED Technology makes wide custom color gamut points possible and expands light output efficiency
backlight
Quantum dot material microstructure
The development of QLED
| Gen | QD Backligth | QD Tube | QD Film | QD Diffusion Plate |
|---|---|---|---|---|
| Style |  |  |  |  |
| Adv. | 1. Color purity | 1. Only requires blue light backlight 2. More stable structure | 1. Uniform distribution of quantum dots 2. Good water and heat insulation | 1. High physical stability 2. Uniform distribution of quantum dots 3. Low cost |
| Disadv. | 1. Complex structure, high cost 2. Different aging times, prone to discoloration 3. No protective structure, unstable | 1. Difficult to product 2. Insufficient color uniformity 3. The glass structure is fragile, heavy metal leakage | 1. High cost 2. Moderate physical stability | 1. Low quantum dot concentration |
Wide Color Gamut Backlight
Adding a layer of wide color gamut material on the backlight beads results in a purer range of backlight colors when compared to blue light backlight sources. A wider bandwidth of white light ultimately presents more realistic color and uniformity.
Colorful Phosphors
Blue Light
QLED +
No Fill
Blue Light
Previous Generation QLED
*The wide color gamut fill material is composed of red and green materials, visually presenting a yellow color. When mixed with the blue backlight, a purer color bandwidth of white light is achieved for a wider color range.
Structure of 
QLED+
QLED+The principle of METZ QLED+(fourth generation QLED) is to merge quantum dot film and diffusion plate structure, using only one layer structure to achieve the final wide color gamut. For the problem of insufficient quantum dot concentration in the quantum diffusion plate, wide color gamut backlight is used to supplement the color gamut, and finally, the new structure is used to achieve a display effect similar to traditional quantum dot TVs.
Gen5
Next Generation
Next Generation
20%Brightness
20%Color PerformanceMETZ industry's first self-developed fifth-generation quantum dots, in the fifth generation, quantum dots and reflective sheet structure into one, the light emitted by the lamp bead can directly excite the quantum dots, without the need to go through the other structure, significantly improving the excitation efficiency. The sandwich structure of the reflector provides greater physical stability for the quantum dots in the middle layer, allowing the color to remain intact for 10 years.
WCG Backlight
Display Secreen
QD Diffusion Plate
QD Reflector Plate
WCG Backlight
Display Secreen
Qrdinary QLED
Gen5 QLED+