Comparison of QLED and OLED: these are the differences

At CES 2017, Samsung introduced QLED technology in more detail - a direct competitor to OLED. This practical tip shows you exactly where the differences between the two technologies lie.

QLED vs. OLED: This is how OLED works

• With an OLED display, each pixel consists of two electrodes. One of the two electrodes is transparent. Semiconductor layers lie between the electrodes, which shine differently brightly due to different current intensities.
• Each pixel shines for itself. Compared to LCD screens, backlighting is no longer required, which enables flatter displays. The better contrast and a deeper black have also made OLED a successful technology.

QLED vs. OLED: This is how QLED works

• So-called quantum dots work in the QLED display. These are nano-crystals made from semiconductor materials. These absorb light and then emit it again.
• Depending on the size of the core of a quantum dot, a different color is displayed. A QLED display can thus be controlled more precisely than an OLED display. Nevertheless, the QLED continues to build on an LCD screen.
• Ultimately, the QLED displays should have even better contrasts and an even deeper black. According to Samsung, the brightness is also higher than that of OLED displays. Even at very steep viewing angles, the picture should hardly darken. In addition, the color space DCI-P3 is covered, so colors in the cinema standard are possible.

QLED vs. OLED: which is better?

• OLED is currently used in smartphones, but also in many TVs - for example LG, Sony and Panasonic. Some televisions already use OLED screens. In such sizes, however, these are quite expensive to produce.
• That's why Samsung developed QLED. If QLED is actually cheaper to produce and has no noticeable disadvantages, the technology could prevail in the field of televisions.

In the next practical tip, we will show you a comparison of 3 top models of OLED TVs.