Quantum dot vs. OLED: Which screen technology is better?
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Although OLED is no longer a new technology, panel manufacturers are still investing a lot of money in new production lines to increase the production of OLED displays. Market researchers predict that OLED will achieve a significant increase in market share in the next few years. In the future, OLED displays will replace traditional LCD screens, but they will face competitive pressure from quantum dot technology. Today, let's talk about the difference between quantum dots and OLED and compare the display effects of the two. Explanation of technical differences First, let's quickly review the main differences between OLED and quantum dots. OLED (Organic Light-Emitting Diode) is an organic light-emitting diode, also known as an organic electro-laser display. It has the characteristics of self-luminescence. It uses a very thin organic material coating and a glass substrate. When an electric current passes through, these organic materials will emit light. In addition, the OLED display screen has a large viewing angle and can save electricity. Quantum dots are extremely tiny inorganic nanocrystals that are invisible to the naked eye. Whenever stimulated by light, quantum dots will emit very pure colored light. The backlight source using quantum dot materials is currently the purest backlight source. Quantum dot TVs use the purest quantum dot light source as a backlight source, which revolutionizes the full color gamut display and restores the image color most realistically. Color gamut and viewing angle Compared with LCD screens, the color gamut of OLED displays is a very big advantage, which enables a more vivid visual experience and accurate color reproduction, while LCD screens often lack accuracy. However, the high precision of quantum dots means that developers can use pure blue backlight and accurate red and green filters to produce more accurate colors. Quantum dot displays do not need to worry about color accuracy at all, and in this regard, it even surpasses OLED displays. However, because quantum dots currently still rely on backlight sources, the accuracy and contrast of deep blacks still have similar shortcomings as existing LCD screens. In other words, OLED performs better in contrast and high dynamic range images. In addition, because quantum dot displays require a filter layer and cannot generate light directly on the surface, some light will be blocked. Quantum dot displays cannot compare with OLED in terms of viewing angles unless it can remove the backlight design. Production comparison The biggest key to the success of any technology is its cost, which is one of the reasons why LCD screens are so popular in mobile devices. Although costs have been falling, OLED displays still cost 20% more than LCD displays of the same size. Fortunately, with the emergence of new manufacturing processes, the production cost of OLED displays is expected to drop by 20% to 30% by 2017. Quantum dot displays retain the advantages of LCD displays that are cheaper to produce. In addition, OLED products have a shorter lifespan, while quantum dot displays do not have such problems. From the perspective of cost-effectiveness, the latter is obviously more attractive to manufacturers and consumers. Summary In summary, OLED displays do have very good display effects, but quantum dot displays are a very strong opponent. Both have some advantages and disadvantages. In the next few years, we will have the opportunity to see some high-quality quantum dot displays and OLED displays appear on the market. As a winner of Toutiao's Qingyun Plan and Baijiahao's Bai+ Plan, the 2019 Baidu Digital Author of the Year, the Baijiahao's Most Popular Author in the Technology Field, the 2019 Sogou Technology and Culture Author, and the 2021 Baijiahao Quarterly Influential Creator, he has won many awards, including the 2013 Sohu Best Industry Media Person, the 2015 China New Media Entrepreneurship Competition Beijing Third Place, the 2015 Guangmang Experience Award, the 2015 China New Media Entrepreneurship Competition Finals Third Place, and the 2018 Baidu Dynamic Annual Powerful Celebrity. |
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