The development of OLED lighting is growing stronger. Because OLED lighting has flat illumination and does not harm the eye, attracting panel, material and equipment manufacturers have been investing in development, and actively research and develop new materials, equipment and process solutions, overcoming the challenges of material degradation and large-scale development, and then dividing The lighting market has huge business opportunities. 
Organic light-emitting diodes (OLEDs) had a market size of only $500 million in 2009, but in the following years, they have continued to attract investors to invest in capital development, which is really intriguing. In fact, OLED has set off a development boom, partly because it can be used on mobile screens, such as the Samsung Galaxy series; the introduction of mobile screens has boosted OLED revenues to $3 billion in 2011 and reached in 2012. 6 billion US dollars.
In addition to the mobile phone screen, lighting is another very potential application of OLED. Although OLED lighting currently accounts for only a small part of the overall output value, the huge potential lighting market is expected to bring new revenue opportunities to OLED operators.
LED performance / cost to take advantage of OLED lighting still has time to develop
The way to improve traditional lighting with LED solid-state lighting has received a lot of attention from the industry, which has also raised doubts about how OLED will enter the lighting market in the future. Most people think that OLED will directly compete with LED technology, which means that OLED must overcome the current comparison with LED. Big performance and cost gaps.
At this stage, LED lighting luminous efficiency is 110 watts per watt (lm / W), while commercial OLED products up to 60 lm / W; as for cost, LED technology costs almost 5 US dollars / thousand lumens (klm), OLED is about 350 USD/klm, there is still a clear gap between the two technologies in the development of lighting applications. As a result, OLED technology is bound to take advantage of its unique light and glare, the size of the lamp can be large and flat, in order to successfully seize the lighting market.
Compared with standard LEDs and other light sources, it is necessary to cover the glare with a blackout, which may cause the problem of vision loss. The OLED light source can provide illumination without shielding, which is another lighting future that is still developing; in addition, OLED can With many different styles of material combinations and structures, there is a chance of a significant jump in luminous performance.
At present, OLED manufacturers have increased the efficiency by increasing the driving current, but at the cost of shorter component life. At the same time, the OLED structure can be stacked in series to improve the luminous efficiency, such as stacking two different structures during the deposition process. Together, driving with the same current will produce almost twice as much light. In this way, related companies can also use a lower current to drive the stacked OLED panel, which can produce the same luminosity and increase the reliability, and overcome the problem of affecting the lifetime of the OLED due to the increase of current.
Although OLED lighting has potential for development, if it is seen as a direct competitor of LED in the lighting market, the difference in performance and cost may make OLED out in the foreseeable future. However, in the case of OLED lighting technology and luminaire design progress, two solid-state lighting technologies still need to exist at the same time, which has nothing to do with whether OLEDs compete with LEDs, or are not better technologies, because both lock The application is not exactly the same.
Considering the technical differences other than cost and luminous efficiency, if OLEDs reach the same level as LEDs, it will be a great achievement. In general, commercial LED products have a 20 to 25 year guaranteed life, and OLEDs are only 5 to 10 years. The main reason is that some materials in OLEDs are faster than other materials, and the color will change. This is in some industries or automobiles. The application is unacceptable.
Material cost / barrier layer designed to break through the focus of OLED
The OLED material is eroded because the organic material layer is sensitive to oxygen and moisture, and must be carefully coated and protected by a permeation barrier. This poses a serious challenge to the elastic design of the OLED panel. It is difficult for manufacturers to make Cost-effective, and transparent, flexible, and high temperature resistant penetration barrier during manufacturing.
At this stage, 100% of commercial lighting OLEDs use glass as the substrate of the film layer, and put a piece of glass plate as a physical protective layer and a moisture/oxygen barrier layer (Fig. 1). However, even with these components, OLED organic materials It will still be eroded in a high temperature environment. In this case, an accelerated pressure test at a temperature above 85 °C will cause problems.
Figure 1 Schematic diagram of OLED panel architecture
On the other hand, it is difficult for manufacturers with traditional lighting backgrounds to use OLED expertise to make lighting equipment. Therefore, OLED operators must also propose countermeasures to overcome the commercial and technical challenges of lighting. Especially now, OLED panels and traditional lighting equipment manufacturers are in charge. In a short period of time, OLEDs will have difficulty in penetrating the lighting market. The possible solution in the future is that OLED panel manufacturers produce their own lighting equipment, which is driven by technology rather than taking Traditional marketing strategy.
But another challenge is how to reduce OLED manufacturing expenditures. Three major issues can be found in the cost breakdown of commercial OLED panels. First, OLED manufacturing yields are low, manufacturers do not have sufficient control, technology or experience in high-yield processes. Second, the cost of building OLED production lines is high. For example, OSRAM has invested £20 million in OLED trial production line in Regensburg, Germany. The third is the high cost of materials and equipment, and the high cost of OLED production lines is mainly because this is an emerging technology, so there is no standard equipment.
Lithium (CAS No.14258-72-1) Li is a silver-white metal with soft, large toughness, good ductility, and the least density metal. The relative atomic mass of lithium is 6.94, the density is 0.534g/cm3, and the melting point is 180°C. It can react with a large number of inorganic reagents and organic reagents. It is extremely unstable in nature, variable in the event of air, and can react violently with water. Because the atomic weight of lithium is very small, the battery with lithium as an anode has the advantages of high energy, high circulation life, small volume, light quality, high charging, and discharging rate, no memory effect, simple maintenance, long storage life, green and environmental protection. In addition, the battery field has become the largest application field of lithium.
Ultrathin Lithium Ribbon,Ultra-Thin Lithium Belthigh Energy Density,0.1 0.2Mm Ultra-Thin Lithium Button Battery Material,0.1 0.2Mm Ultra-Thin Li Thermal Battery Material
Shandong Huachuang Times Optoelectronics Technology Co., Ltd. , https://www.dadncell.com