What is QLED technology, what is its technical principle, why QLED TV has more advantages than OLED TV, where is the difference between QLED TV and OLED TV, what kind of visual sense can it bring us? Everything is known when you read this article.
What is QLED technology
QLED is an abbreviation of "Quantum Dot light Emitting Diode". The Chinese name is QD light emitting diode. It can also be called quantum screen display technology. This is a new technology between liquid crystal and OLED.
QLED technology principle
The principle of QLED technology is to stimulate the red and green light by irradiating quantum dots with a blue lED light source. After years of painstaking research and development, LG Display and Samsung Display formally announced that QLED Quantum Screen has already reached the conditions for mass production, sounding the clarion call for formal commercialization.
QLED Technology Development Process
QLED core technology is Quantum Dot. Quantum dots are composed of zinc, cadmium, selenium and sulfur atoms. As early as 1983, scientists at the Bell Labs conducted in-depth research on it, and Yale University was discovered several years later. The physicist Mark Reid officially named it Quantum Dots.
In 2005, Cole Sullivan graduated from MIT and founded QD Vision. QD Vision teamed up with South Korea's LG Display and Solvay, a Belgian chemical company, to research and manufacture QLED active matrix displays. QD Vision is responsible for providing quantum. Point core technology, LG Display is responsible for product production.
QLED technology features
1. Quantum dot QLED display technology is to put the optical material of quantum dots between the backlight and the LCD panel, which can make the color gamut meet or exceed the level of OLED, and even eliminate the polarizer on the light source side, effectively reducing the liquid crystal display Product (for LCD TVs and LCDs) manufacturing costs.
2. Quantum dot QLED display technology mainly includes quantum dot light emitting diode display technology (QLED) and quantum dot backlight technology (QD-BLU). Quantum dots have luminescent characteristics, and quantum dots in quantum dot film (QDEF) are in blue LEDs. Red light and green light are generated under the backlight, and mixed with the remaining blue light through the film to obtain white light, thereby enhancing the light emission effect of the entire backlight system.
3, Quantum dot QLED display technology unique characteristics, whenever subjected to light or electricity stimulation, quantum dots will emit colored light, the color of the light is determined by the composition of the quantum dot material and size shape, quantum dots can be LED light source The emitted blue light is completely converted to white light (the traditional YAG phosphor can only absorb part of it), which means that with the same brightness, the quantum dot QLED needs less blue light, and less electricity is needed to convert the electro-optical light, effectively reducing Backlight system power consumption assembly.
4, quantum dot QLED display technology unique advantage so that the TV brightness is effectively increased by 30 to 40%, the backlight system color conversion efficiency is greatly improved, the screen color is more beautiful, taking into account the characteristics of energy saving and environmental protection, the screen brightness, color purity are About 2 times the WLED backlight system, the performance improvement is very obvious.
The essential difference between QLED TV and OLED TV
The goal of QLED quantum screen display technology is to replace OLED display technology, and it must have excellent technical strength and market conditions. Then, where is the difference between the main OLED technology of OLED technology?
1, QLED quantum screen manufacturing costs less than half of the OLED.
2. OLEDs require a “shadow mask†when they are manufactured. However, the shadow masks are prone to thermal expansion and contraction, which affects the display accuracy. QLEDs do not need a shadow mask during the entire manufacturing process to avoid this problem and maintain stable image quality for a long time.
3, OLED color is not easy to control, need color filter "correction" to display different solid colors, and QLED can display different solid colors from the beginning.
4, QLED luminous efficiency is 30-45% higher than OLED, under the same picture quality QLED energy-saving 2 times than OLED.
QLED TV vs 4K TV Picture Quality
QD QLED display technology is not bragging? Take a look at the real machine demo of domestic brand TCL. The contrast is a high-end 4K ultra-high definition LCD TV (based on WLED backlight technology). Let's take a look at the contrast effect of multiple scenes. Due to the conditional ambient light, it is difficult to display perfectly. Differences between the two technologies, take a look together.
Although the real shot comparison chart has "narrowed down" the difference in the image quality of the two display technologies, the quantum dot QLED display technology has no suspense in all aspects to suppress the traditional 4K ultra high definition LCD TV, regardless of the translucent degree, color purity, and shadow detail of the screen. And so on, quantum dot QLED display technology is indeed surprising in terms of image quality. It turns out that our previous technical analysis of quantum dot QLED display technology has not been exaggerated.
QLED technology development prospects
“Although QLED Quantum Screen Technology is still at an early stage and there is still room for improvement in technology, QD Vision has made great progress and QLED will begin to show great commercial value.†Jennifer Kolegwei, an analyst at DisplaySearch, a well-known market research firm Said: "QLED technology is still in the early stages, but the technology has a very good market prospects."
According to WinterGreen Research’s latest “2013-2019 global quantum dot display technology market share, strategy and forecast†research report, the commercialization of QLED quantum screens in mass production means that the overall TV market landscape will change, with high quality and high Production and low cost can effectively improve the product quality of all display industries (including large-size and small-size markets), QLED quantum screen display technology will accelerate the evolution of the product.
The world's first QLED TV
The leader in quantum screen QLED display technology will be the leader in the television field - Samsung. According to the author's reliable news, Samsung will officially release its QLED TV product at the CES 2015 US Consumer Electronics Show in early January 2015. The first batch of QLED TVs are mainly 55-inch and 65-inch models, with a resolution of 3840×2160 ultra high definition, positioning the flagship market. The previous WLED backlight models will thoroughly say goodbye to the “flagship†word.
Among domestic brands, TCL is a quantum dot QLED TV product advocate, based on Huaxing Optoelectronics 55-inch 4K ultra-high-definition LCD panel, using 3M QDEF engine technology, the color gamut of the screen is as high as 105%. Prior to QLED and 4K TV picture quality comparison link, wall The QLED TV is the TCL's QLED TV. Previously, LG Electronics has been cooperating with QD Vision to develop quantum dot backlight technology, but there is no timetable for the launch date of the product. In terms of Japanese, currently only Sony has plans to launch Q-inch TVs with 55 inches or more.
With the active promotion of international panel manufacturers, quantum dot display technology will continue to heat up in the next five years. According to industry internal data, the penetration rate of quantum dot QLED display technology in smart phone LCD panels will reach 3% in 2015, and will quickly increase to 26% by 2020; tablet penetration rate will increase from 2% in 2015. In 15% of 2020; LCD TV panels, the market penetration rate in 2015 is only about 1%, or to 9% by 2020.
Tags: Android TV Forum, Smart TV Communication
12V 220V Inverter,12V To 220V Car Inverter,12V 220V Car Power Inverter,12 Volt Inverter Mini
GuangZhou HanFong New Energy Technology Co. , Ltd. , https://www.zjgzinverter.com