QLED or quantum light-emitting diode is a new type of display developed, manufactured, and marketed by Samsung. It is based on quantum dot technology in which nanosized particles called quantum dots are used to produce light and generate colors. Nonetheless, despite having a somewhat similar sound to OLED displays, QLEDs are different.
What is the Difference Between QLED and OLED Display Technologies?
The key difference between QLED displays and OLED displays is the specific type of display technology. QLEDs are still based on general LCD technology while OLED is a display technology that uses organic light-emitting diodes to produce light and color.
Remember that a QLED is a type of quantum dot or QD displays. To be more specific, it is an integration of photo-emissive quantum dot technology and LCD technology.
What are the Characteristics of QLED Displays?
The following are the key characteristics of QLEDs:
• QLEDs use photoluminescent or photo-emissive quantum dots to produce light and generate colors. Essentially, these dots emit light upon absorption of photons or to put simply, upon exposure to light.
• A quantum dot is a type of nanocrystal with semiconducting and optical properties with sizes ranging from two to ten nanometers. Each dot produces called depending on its size. Larger ones emit reds while smaller ones emit blues.
• QLEDs naturally produce pure monochromatic red, green, and blue light. To be more specific, they deliver highly saturated narrow band primary colors.
• A LED backlighting is used to trigger these photo-emissive quantum dots. In addition, the LED backlighting also improves the brightness output of QLEDs.
Which is Better Between QLED and OLED Displays?
QLEDs have their respective advantages and disadvantages. The same is true for OLEDs. Take note of the following:
• Color Accuracy: QLEDs and OLEDs are capable of displaying higher color gamut. However, most OLED panels have oversaturated colors to make the images more vibrant. QLEDs produce more accurate colors and image representation.
• Brightness: When it comes to outdoor visibility or performance under bright lights, QLED outcompetes OLED. Backlighting makes QLEDs more vibrant. Note that OLED does not use any backlighting.
• Contrast Ratio: A QLED display has a competent contrast ratio when compared to other LCDs. However, OLEDs remain undisputed because it is capable of producing deep natural blacks. Backlighting in QLEDs washes out dark colors.
• Energy Efficiency: OLED technology has been acclaimed for its energy efficiency. However, QLEDs are still energy efficient. The precise production of colors makes power consumption in QLED displays more efficient.
• Lifespan: QLEDs outperform OLEDs when it comes to longevity. OLEDs are prone to faster degradation and water damage. QLEDs inherit the advantages of LCD that include better durability and lifespan.
• Cost and Price: In consideration of manufacturing, QLED display has become more efficient to produce, thus driving down production costs and subsequently, driving down the market price. OLED is still costly to manufacture. In the future, QLEDs will become cheaper than OLEDs.