Zhongzhao.com is an important condition for the survival and development of living things, and it is also the most important way for people to observe the world and understand the world. In the process of the development of human civilization, every technological innovation of the light source will be accompanied by a tremendous change in the human lifestyle. From light bulbs, fluorescent lamps to LEDs , the earth-shaking changes brought about by the emergence of new light sources have been verified.
In recent years, with the advancement of the times, people's pursuit of quality of life is getting higher and higher. Traditional LED light sources have not met the demand for quality due to high glare, high blue light and heat dissipation. After more than 20 years of experimentation and research. The new light source OLED is highly anticipated and praised, or will open a new generation of healthy lighting.
OLED light source technology is the most ideal lighting technology
The human eye's perception of light is not only the brightness of light, but also the color and saturation. In the professional field, color coordinates, color rendering index and color temperature are often used to judge the light quality of the light source.
Color coordinate map
The color coordinates are three-dimensionally labeled, where the x- axis represents the intensity of red light, the y- axis represents the intensity of green light, and the z- axis represents the intensity of blue light. The larger the value, the stronger the light intensity, which is generally defined ( x=0.33 , y=0.33). ) is pure white light. The color coordinate of the light source suitable for people's illumination is between 0.4 and 0.6 for the x- axis and y- axis , and the color coordinate range of the OLED source is approximately 0.4 .
The color rendering index is the difference between the degree of expression of the light source and the sunlight. The closer the value is to 100 , the more consistent with the sunlight, indicating the better color rendering; and the color rendering index is lower than 80 , which is generally not suitable as an illumination source because It will cause distortion of the color of the object being illuminated. The color rendering index ( >95 ) of OLED light sources is currently closest to sunlight compared to other artificial light sources.
For color temperature, it is related to light color. In visible light, the higher the color temperature, the more blue light is contained. The blue light is the strongest part of visible light. If the light source contains more blue light, the color temperature of the device will also be The higher the rate, the higher the energy of the blue light is most likely to penetrate the retina of the human eye, causing macular lesions and even permanent damage.
LED source spectrum
White LEDs are obtained by using high-energy blue light to excite yellow phosphors. Because LEDs are rich in blue light and the brightness of bare LED light sources is often high, LED lamps may have a risk of blue light hazards. For this reason, the state has to issue a mandatory inspection document GB7000.1 on the blue light hazard. "Lighting Part 1 : General Requirements and Tests", "From January 1 , 2017 , for lamps with integral LED or LED modules Blue Light Hazard Assessment should be performed in accordance with IEC/TR62778 .
OLED source spectrum
The OLED light source is formed by stacking organic materials that can emit light of different colors. The color temperature of the OLED is low, and the ratio of each color can be arbitrarily adjusted, so that the human eye is more friendly.
OLED lighting characteristics, subverting people's understanding of light
The reason why OLED lighting has been strongly promoted by domestic and foreign governments and the active investment of major manufacturers is not only because the light source technology meets people's requirements for light quality, but also subverts people's understanding of light and opens up new application fields. From the other important characteristics of OLED lighting, the main manifestations are as follows:
01
The OLED light source is the closest to natural light and is not glaring, which is very beneficial to human health. It can be installed in the direct view of the human eye. It does not require a soft plate or a light guide to reduce glare. For example, the OLED lighting panel can be directly mounted on the wall, and it looks pleasing to the eye like a work of art.
Designed by Schmitz Leuchten
Snowflake designed by David Marin
02
OLED color rendering index of up to 95 or more (near natural light), the light quality is very good, on the one hand can more realistically present the color of the illuminated items, on the other hand help to alleviate visual fatigue and protect vision. For example, the colorful paintings and exhibits in the museum will be more vivid and realistic under the OLED illumination.
03
OLED is a light and thin planar light source (thickness <1mm ), which can realize geometric and patterned shape. The effect is between display and illumination. It can also be customized to help develop innovative market applications.
Football OLED designed by Simon Enever
Designed by Luminaire
Designed by Antonia Kuellmer
04
OLED emits light without heat, cool to touch , can be combined with a variety of materials (paper, wood, etc.), a variety of products (furniture, home appliances, etc.), simple structure, can achieve folding, bending shape.
Designed by Ron Arad
05
OLED as a luminaire has high conversion efficiency and does not require transformers, heat sinks, light guide plates and other components. It does not require secondary light source structure design, which not only saves costs, but also generates less waste, which can effectively achieve energy saving and emission reduction.
06
OLED dimmable, multi-color, easy to intelligent control, greatly improving the freedom of design. Especially in the increasingly mature Internet of Things technology and the development trend of technology across borders, people are increasingly expecting more humanized interactive experiences, such as the ability to automatically adjust the bright, warm and cold changes of space lighting according to mood, I believe this is the replacement of lighting products. New design opportunities are coming.
Fire ring desigmed by Blackbody
Although OLED lighting is currently not dominant in price, OLED light source is unique in quality and efficiency, and is showing increasing development potential. It will gradually play a role in the medical field and education field where the lighting environment is high. Its dominant effect.
Source : Shuguang OLED Editor: Li Lin
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