[Text / high-tech LED Yue Mengdi] "The year before we said that we can almost buy red powder to send yellow powder, I did not expect someone to do this." Cui Lei, deputy general manager of the South China Operation Center of Rare Earth, joked. He is talking about 2014.
According to a survey by the Institute of Advanced Industrial Research LED Research (GGII), the sales volume of phosphors in 2015 is expected to reach 184 tons, a year-on-year increase of 34.8%. The increase in sales volume did not lead to an increase in sales. On the contrary, its sales volume declined compared with last year. The output value was about 695 million yuan, a year-on-year decrease of 12.63%.
Liu Ronghui, director of the Rare Earth Luminescence Materials Division, said that the performance improvement of white LED phosphors has entered a bottleneck period, but it is far from over.
Today's yellow powder prices have almost fallen to the end, and if no new products introduce new profit growth points, it is difficult for phosphor companies to continue. General lighting has increased the requirements for the efficacy, lifetime and color rendering of LED light sources, and the requirements for high color gamut and full spectrum coverage of backlight/display LED devices are also increasing. This phenomenon has caused many phosphor companies to Found a new profit point.
In the field of high-quality wide color gamut display, Rare Earth has pioneered the introduction of high-performance fluoride red phosphor in China. Fluoride powder has outstanding advantages in color gamut, definition and index.
“It’s getting harder and harder to push products now,†Cui Lei said. Since the users of phosphors, the current products of packaging factories, tend to be identical, it is increasingly difficult to find rare points in researching rare earths. But in fact, even if the performance and price are almost the same, a strong company can still open a certain gap with other homes.
"There are advantages in researching rare earths that are not available to other companies, such as sales personnel and service personnel from all-technology, such as the research and development of new products." He Huaqiang, general manager of the South China Operations Center of Rare Earth, told Gaogong LED. It is undeniable that the central enterprises that have the background of the research and development of new materials, the research and development of rare earths in terms of staffing and financial support have unparalleled advantages.
Although domestic LED phosphors have made extraordinary developments in recent years, there are still many shortcomings. First, the basic research on new materials involved in enterprises is insufficient. Among them, nitride and NOx phosphor core patents and key applications have great application prospects. The preparation technology has not yet completely broken through.
In the case of fluoride phosphors, GE and Sharp have applied for patents to add blue light for backlighting, but there is no fear of researching rare earths. They are also actively applying for related patents in order to better lay out the market.
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