OLED and LED is not a dispute but complementary symbiosis

LED and OLED PK topic has been rampant. Then, in the field of solid state lighting, LED compared with OLED, what merits? Affirmative: LED theory of industrial competitive strength is stronger, LED lighting for 100 thousand hours, LED chip light emitting efficiency can reach more than 120lm/W, compared with OLED are not dominant. Focus on a new technology and new products, not only to focus on technology.

OLED lighting has become a hot topic in the solid-state lighting industry. For a time, "OLED will replace LED", "LED", It is all up with temporarily unable to shake the "OLED LED" status ", OLED leather LED life" view of course also have a lot of emerge in an endless stream, bad mouthing the sound of OLED lighting. In short, the topic of LED and OLEDPK has been rampant.

Then, in the field of solid state lighting, LED compared with OLED, what merits? Affirmative: LED theory of industrial competitive strength is stronger, LED lighting for 100 thousand hours, LED chip light emitting efficiency can reach more than 120lm/W, compared with OLED are not dominant. Concerned about a new technology and new products, not only to pay attention to technology or the product itself, but also to the future development of its industrialization. Solid state lighting industry development, and cost, life, light efficiency and other factors, of course, these factors and the technology itself there is a causal relationship. Stressed that the competitive strength of LED lighting and bad mouthing OLED lighting people, nothing more than to do in these factors.

For the cost, LED package price of $5 /klm, the overall price of $20 to $100 per KLM, and OLED is much more expensive than this. It is argued that the $300 ~500 /klm price point (panel level), including lamp design costs, OLED is not a cost-effective option. Despite the fact that OLED vendors usually position their products in the professional market, high prices will hinder the development of the market. Of course, the OLED price problem is still due to the technical level, the packaging layer (barrier, adhesion and seal) and integrated substrate (transparent conductive layer, substrate and light layer) is still the main driving force of the cost.

For life, the industry believes that the LED lighting theory lasting 100 thousand hours, of course, there is heat effects of life, depreciation and other problems in the process of using, and the lifetime of OLED devices is seriously insufficient, generally only 5000~8000 hours, OLED lighting applications to be popularized, must also further improve its service life, the initial goal is to to achieve the level of fluorescent lamp, that is 20000 hours, and the next goal is to reach 50000 hours, to achieve this goal, must have the big breakthrough in materials, and further improvement of device structure and process level.

For the light effect, LED chip light emitting efficiency can reach more than 120lm/W, when additional lamps, lamp shade, light scattering effect in the device, the actual efficiency may be reduced to around 60~70lm/W; OLED lighting can only do 30~50lm/W, also said to have the highest 60lm/W.

However, there is still a big gap between the two.

OLED and LED is not a dispute but complementary symbiosis

The OLED lighting OLED lighting will A new force suddenly rises. continuous spectrum, no ultraviolet radiation, more natural light and soft, almost will not hurt people's vision. Surface light source is a unique OLED lighting label, around this feature, but also derived a lot of advertised advantages. For example, in the design of lamps and lanterns, LED heat concentration, the need for additional shade, heat sink or light scattering devices, lighting design is more complex. OLED plane light source characteristics, in addition to suitable for various types of lamp design, heat dissipation performance is better, do not have to install additional heat sink and raise the cost of lamps. If the flexible substrate, OLED will become a curved surface light source, which is believed to be favored by many designers to create more and more imaginative form of lamps. Because it is a surface light source, so OLED lighting in a large area has a high potential for lighting, but also has the advantage of size. The impact of human vision is another key factor in the discussion, in which OLED is better. OLED lighting for continuous spectrum, can use DC, such natural light, its light is also more gentle, almost no harm to human vision. More importantly, OLED is completely no UV problem.

Most of the LED is the use of UV visible light, and then through the formation of white or other light, if the device in the ultraviolet treatment of the exposed, it will harm the human eye. The sun light is currently developing OLED device can be widely used in the daytime and night lighting situation, OLED lighting design with ultra high color rendering, color temperature and color rendering of the performance also features change lighting through different processes or voltage. From the perspective of the industrial chain, some industry insiders believe that the OLED industry chain is shorter, stronger integration. Their reason is that, for the upstream of the OLED industry chain, is the supplier of various materials and components, such as organic semiconductor materials, electrode materials, substrate materials, optical materials, etc.. It is likely that the substrate supplier will integrate the electrode material and the light extraction material with the substrate to provide a complete substrate solution to the middle panel manufacturer.

The middle panel manufacturing field, because organic semiconductor materials using OLED devices for tolerance to the environment is relatively low, OLED panel manufacturers also bear the package duty, which is different from the LED lighting industry, the current LED chip manufacturers and packaging business are independent, while vertical integration in the field of LED has been raging like a storm, but still less than OLED the natural combination of chip and package.

For the downstream, due to the OLED lighting design is more flexible, downstream lighting manufacturers can be based on different lighting needs, the corresponding design and development. Therefore, OLED lighting industry chain integration ability is stronger.

Conclusion: not the Titans battle but complementary LED has leapt into the field of general lighting, and OLED is mainly used in the field of special lighting, will enter the next office, commercial facilities and senior housing. For OLED lighting and LED lighting, what is the best or worse, in fact, more people think that the two will perform their duties, common existence and common development. From the point of view of lighting demand, LED is a point of light, lighting light concentration, when applied to the outdoor environment is more eye-catching, suitable for local lighting, advertising signs, traffic signs and other applications. OLED belongs to the surface light, the light is soft and uniform in the room better, two each one has his good points. In the application, LED has entered the field of general lighting. And because the OLED industry still in its infancy, the first phase of OLED lighting or special lighting purposes, followed by the lighting for office, commercial facilities and senior housing, really into the general lighting market depends on the next development technology.