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OLED lighting advantage analysis
OLED technology has been hot recently, mostly because it has a tendency to replace other flat panel displays. In fact, OLEDs have their unique advantages as illumination sources. The principle of OLED illumination is that the organic material emits light under the action of an electric field, and the thickness of each layer of the organic light-emitting layer is only a few tens of nanometers. This is white light that is really close to the sun, and there is no ultraviolet light or infrared light in the sun. It is reported that incandescent bulbs produce infrared light, energy-saving fluorescent lamps produce ultraviolet light, and OLED light sources are completely absent. In addition, OLED illumination is a continuous spectrum and direct current can be used. This kind of natural light, its light is also softer, almost no harm to people's vision. OLED illumination does not require heating the filament to thousands of degrees Celsius, nor does it require mercury vapor to generate ultraviolet light to illuminate the phosphor. Because there is no multiple conversion process of electrical energy, OLED lighting saves about 60 to 70 more energy than current energy-saving lamps. Not only that, OLED lighting can also be made into any geometric pattern according to customer's requirements, or even directly into a part of the wall, completely changing the shape of the current lighting source. It is understood that OLED lighting is also a cutting-edge technology in the world, and multinational companies such as Philips and Osram are carrying out research on OLED lighting technology and are committed to industrialization. In the future, this technology is expected to form another huge industry with a value of 100 billion. The domestic OLED lighting market is expected to reach a scale of several billion yuan by 2020. The advantages of tunable temperature/high color rendering OLED are obvious in human health. Unlike power-saving bulbs, OLEDs do not contain mercury and have no ultraviolet rays. Fluorescent lamps use mercury vapor to form ultraviolet rays, and then ultraviolet rays excite phosphors to emit light. Some of the LEDs use ultraviolet light to excite visible light, which in turn forms white light. If exposed to ultraviolet light, it will cause harm to the human eye. And OLED only needs a few small batteries, or a 9 volt special-type battery, it can drive the light, because of its low voltage, it can be carried safely. In 2009, Taiwan’s Qingda published a solar-like OLED with a color temperature ranging from 2,000 to 8,000 K, covering 3,000 K in the morning, 5,500 K in the noon sun and 2,500 K in the setting sun. The different light colors and color temperatures emitted by the sun during sunrise, sunset and daytime, in addition to giving people different atmospheres, can regulate the physiological clock and rhythm of humans and creatures. Light with low brightness and color temperature does not prevent the secretion of melatonin that inhibits tumors. Whether it is LED, incandescent bulb or fluorescent tube, there are glare problems, among which LED is the most serious, and OLED is a natural plane light source, no concentrating glare of light, suitable for indoor or interior lighting, and will not flash, Can be used as eye protection lamps. On the other hand, LEDs or fluorescent tubes have sharp light color problems, among which fluorescent lamps are the most obvious, but OLED light colors are softer and closer to natural light. In addition, the incandescent bulb uses 95 electric power to generate heat and infrared light, so it is hot light. In contrast, because the OLED spectrum is adjustable and emits almost no infrared light, it is also called cold light. At the same time, the LED of the point-type light source has serious high heat problems, which may lead to a decrease in luminous efficiency of the component, deterioration of the package rubber and shortened service life, and the OLED is in the form of a sheet, which is easier to dissipate heat. The special lighting market is the first point of OLED power generation. At the current cost price, it is not easy for OLED to directly enter the general lighting market. But OLED has its unique advantages, the first to enter the special lighting market. For example, the light emitted by OLEDs has no ultraviolet light, and there is very little infrared light. Even the proportion of blue light is very small. This kind of light can really protect the eyes. In the current China, most children need to wear glasses before entering the youth. If you can use OLED as a reading light, it should help to improve the above situation. The light quality of OLED is also very suitable for the protection of ancient cultural relics. OLED lighting should be the best option in museums that are widely understood in China. In addition, in the high-end lighting market, OLED is a good surface light source with light quality, and its light and thin shape can form a unique artistic finished product, which can not achieve the effect that other lamps can't. Foreign big companies such as Philips and Osram have shown this aspect. We believe that the development of new markets is gradual. Starting from special markets and entering the high-end lighting market, we can enter the above-mentioned virtuous circle and become popular in the general lighting market. China's market potential OLED lighting has a unique advantage in China's development. Technically, we are currently in the leading position. In the market, whether it is the recent special lighting market or the mid-term high-end lighting market, China is far larger than any other country. Because OLED is a new type of luminaire, it is most suitable for the new construction market after promotion, and more than half of the world's new buildings are in China. In terms of policy, China has faced the dual constraints of resources and the environment, affecting sustainable development in the future. China has become the largest country in power consumption. While actively exploring renewable energy, energy conservation and emission reduction have become the most direct and effective way to reduce energy consumption. The national policy will greatly support the holding of light-emitting diodes (OLEDs), which will be the best lighting solution for energy saving and human eye and physiological safety. OLED lighting technology has more than a dozen excellent characteristics, and is the best lighting source in human history. Energy-saving lighting is a necessary choice without damaging the eyes and the body, but lighting suitable for daytime work is not necessarily equally suitable for night breaks. Recent medical discoveries that lighting at night is not necessarily good for the eyes, especially in the past 30 years, since the use of electronic lighting equipment at night, especially the irradiation of strong white light or blue light, causing rapid rise in breast cancer and colon cancer Has attracted the attention of advanced countries. Under the leadership of the European Union, many countries have clearly listed the timetable for the ban on incandescent bulbs year by year. Since incandescent bulbs produce only 15 lumens of light per watt of energy, they will gradually enter history. The incandescent bulbs have been around for 130 years, which is quite comparable to candles. For a short period of time. The fluorescent tubes that were born 60 years ago have energy efficiency of 60 to 90 lumens per watt, but in addition to saving energy, many other shortcomings and possible problems are also worthy of attention. However, before the incandescent bulbs were forced to be phased out by policy, no more complete light source technology was produced. Although incandescent bulb lighting technology consumes more electricity and generates high heat, it also has the advantages of continuous gentleness, no flickering and eye protection. At this stage, although the fluorescent lamps are power-saving, they are about to be eliminated due to problems such as mercury, ultraviolet rays, intermittent spikes and flickering. Nowadays, problems arising from poor lighting have emerged one by one. How to accelerate the pace of healthy and energy-saving lighting technology and practical product development is a challenge for scientists. The following will compare existing electronic lighting technologies and briefly describe the characteristics of energy saving, health and quality of OLED lighting. In view of the importance of the lighting industry to energy consumption, since 1996, the government has subsidized various energy-saving lighting. It is believed that with the gradual and in-depth understanding of OLED lighting, the government will also increase support for OLED lighting. At the same time, the country is actively promoting economic transformation, and OLED lighting is a truly innovative new industry, and is expected to establish a world-leading position.