In the lighting of rivers and lakes, the battle between LED and OLED has almost ended in the future. Although the word difference, the industry has already identified LED as the future light.
Of course, even so, there are still scholars and entrepreneurs who love OLEDs, trying their best to let OLED lighting embrace their imaginary future in the best posture.
Professor Zhou Zhuohui from Tsinghua University in Taiwan, who has been engaged in OLED research for 24 years, said that no candle-light and low-light candle-like OLEDs will be the mainstream products of future lighting. He believes that today, the quality of the light is the king, and the future of humanity is more willing to use light sources that are very friendly to the eyes, to the physiology, and to the masterpieces of art. LEDs contain blue light problems that cannot be avoided.
He also cites several seemingly powerful data: candlelight or candle-like OLEDs, which are 10 times safer than white fluorescent lamps and LED lamps at the same illumination; 5 times safer from the point of view of melatonin secretion protection; In terms of light efficiency, it is 900 times that of a candle and 9 times that of an incandescent lamp, which is close to the existing energy-saving fluorescent lamp. Obviously, he tried to continue to escort OLED with the words "high light quality" and "natural light."
Dr. Xie Wenfa of Jilin University also admitted that although OLED light source has a certain gap from the comprehensive performance and LED, OLED is easy to realize flexible lighting, which can be made into any size and graphics, such as bending and pasting, making the light source design more free. To give the light source more new functions, it can open up the light source market that belongs to the OLED characteristics.
Judging from the current territory of LED and OLED, the strength of the two is indeed very different, but Professor Zhou and Dr. Xie said that it is not far-fetched, and it seems that it is not impossible to occupy the high-end market in the future.
Of course, in addition to the views of academic experts, the industry may be more interested in the dynamics of the enterprise.
Nanjing Dijon Organic Optoelectronics is the first company in the world and the first in China to specialize in OLED lighting. Wang Jinshan, the president of the company, agrees with the views of the above two scholars. He recently pointed out objectively in public: It is too early to talk about the outbreak of the OLED lighting market and really occupy the market space. At the same time, he also stressed that it is clear that the OLED lighting market will emerge in the near future. Beautiful name: Winter is over, will spring be far behind?
In addition, Wang Jinshan also pointed out the status quo of OLED lighting industrialization: 3-4 second-generation in-line production lines (370mm X 470mm) in the world, with an annual production capacity of 30,000 square meters, yield: >80%.
Xie Jing, manager of Gu'an Shuguang Technology Development Department, recently revealed the application of OLED in vehicle lighting. OLEDs can achieve a lighter, thinner, and broader design space, but the most powerful feature is the uniformity of the OLED's illumination. He emphasizes that this is a key indicator of taillight performance. At present, Gu'an Shuguang has developed the first transparent OLED car taillights in China. According to Xie Jing, the next step will be to prepare for mass production of OLED lamps around high temperature stability and mechanical reliability.
Next, take a look at what happened in 2015 in the field of lighting:
1 Philips sold its OLED lighting business to OLEDWORKS in the US (formerly Kodak's employees were founded, the only US OLED lighting manufacturer).
2 LG Chemical sold the OLED lighting business to LGD at a transaction price of 160 billion won ($142 million). LGD or chose to replace the current 4.5-generation OLED display factory with OLED lighting production.
3 In the Taiwan region, the company will invest RMB 10 million (about US$300,000) in smart crystal OLED lighting projects every year for two years. Zhijing Optoelectronics has started mass production of 1.9 million OLED panels.
4 OSRAM invests 2 billion euros in automotive LED and OLED applications, and automotive OLED lighting panels will be mass-produced in early 2016. The BMW M4 GTS will enter the limited edition (700 units) and will be the first commercial vehicle to use OLED taillights.
5 Geqin Technology Development Co., Ltd. invested in Nanjing Dijon Organic Optoelectronics and became the largest shareholder.
Let's take a look at the current status of OLED lighting technology:
(Source: Nanjing Dijon Organic President Wang Jinshan's speech at SSLChina)
Although OLED lighting is still under-scale, and as is well known, there are still disadvantages such as lower energy efficiency, increased cost, complicated structure, large volumetric quality, and color change. However, the above information also shows that OLEDs are particularly high-quality and automotive lighting in the future. The field of lighting may be able to show its talents. Of course, this view is already not new, and it is only a king. However, in the face of LED lighting that is now mature but does not have a firm foothold in the high-end field, it is not ruled out that OLED lighting is “bearing and burdening†and it is a big move.
In the past, a Taiwanese female expert talked about OLED when it was an interesting metaphor: OLED is like a woman, the light is soft, mainly for the surface light source, and the LED is like a man, with a cold light source and a point light source.
This world has always been a man's world, but in the end women can also occupy half the sky.
Maybe she is right?
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