At present, there are several well-known LED chip manufacturers on the market, but the production technology and material development of each company are different. In order to produce the best products. It is necessary for each manufacturer to develop its technology. Now let's take a look at the similarities and differences between the products of these chip vendors.
1, Cree (CREE)
Cree is a leading innovator and semiconductor manufacturer on the market to significantly increase the value of solid-state lighting, power and communications products to enhance their value.
Cree's market advantage lies in the company's unique material expertise in GaN-based silicon carbide (SiC) to manufacture chips and complete devices. These chips and kits can use more power in a small space while radiating less heat than other prior art materials and products.
Cree uses energy return solutions for a variety of applications, including brighter and more adjustable LED light illumination, more vivid backlighting, high current switching power supplies and variable speed motors for optimal power management, and more There are exciting alternatives to effective wireless infrastructure for data and voice communications. Cree's customers range from innovative lighting fixture manufacturers to federal agencies related to defense.
Cree's product line includes blue and green LED chips, illuminated LEDs, backlit LEDs, light-emitting diodes for power switching devices, radio frequency devices and radios.
Technical advantages
1. SiC-based Group III nitride epitaxial, chip-scale packaging technology;
2. High-power chips and packaging technology.
Enterprise status in 2008-2009
In 2008, Cree achieved 25% annual revenue growth, reaching 493 million US dollars, of which LED product sales revenue was 415 million US dollars, accounting for 84% of total revenue. Mergers and acquisitions INTRINSIC and COTCO and investment in marketing links to sales Administrative expenses increased by 44% compared with 2007; due to the depreciation of hidden assets brought about by the merger of the two companies, the corresponding expenses in the financial statements increased more than three times compared with 2007.
Career attributed its performance growth to its strategic focus: XLamp LED sales increased by 140% compared to 2007, successfully acquired LLF and Huagang, etc., and achieved the expected revenue target, doubling the sales of spare parts through distribution channels, and passing The expansion in Asia mainly includes the transfer of XLamp production to China, which has greatly reduced production costs.
Investing in technology and achieving the best R&D report results in the industry - 161 lumens per watt of white light power LED, while Cree has also expanded the scope of its products. In 2008, Cree designed and installed lighting systems based on energy conservation and maintenance costs for campuses and major streets in the United States, laying the foundation for future development of the indoor and outdoor general lighting market. Its sponsorship and participation in lighting projects include: LED City, LED Workplace and LED University. The growth in general lighting applications and the company's growth in power and RF product sales offset the decline in sales of LED chips and high-brightness LED components due to reduced consumer demand for mobile phones and automotive applications.
In addition, Cree has signed a patent license agreement with Mitsubishi Chemical Corporation to give it an exclusive license to manufacture and sell independent GaN substrates. Cree charges the security and royalties for the sale of GaN substrates as specified in the agreement. Agreement with BridgeLux on patent infringement litigation. According to another supply agreement reached later, Cree will become an important supplier to BridgeLux.
2. Osram
Osram is one of the world's two largest light source manufacturers, headquartered in Munich, Germany, with a research and development and manufacturing base in Malaysia, and is a wholly-owned subsidiary of Siemens. In fiscal year 2007 (as of September 30, 2007), Osram's global sales reached 4.7 billion euros.
Osram's customers are located in nearly 150 countries and regions around the world. With innovative lighting technologies and solutions, Osram continues to develop new areas of artificial light sources for use in public spaces, offices, factories, homes and automotive lighting.
Osram has a number of world-leading patents, and many of the world's most famous projects have chosen Osram's lighting products and solutions. From the Taipei 101 building of the world's tallest building to the extremely luxurious Dubai Sailing Hotel; from the 2000 Sydney Olympic Stadium to the 2006 World Cup Munich Allianz Arena; from the solemn Beijing Tiananmen Square to the modern architectural classic Swedish Malmo Rotating Tower... Osram's lighting products are shining in it.
Osram has three production bases in China and a research and development center. The company has nearly 8,000 employees in China. Among them, Osram (China) Lighting Co., Ltd. was established in 1995. The company has about 3,500 employees and nearly 40 sales offices across the country. OSRAM China has become the strength of Osram's Asia Pacific region and plays an important role in Osram's global strategy.
With more than 5,000 varieties of lighting products, Osram is able to meet the needs of people in work, life and special areas. Its product range includes: fluorescent lamps, compact fluorescent lamps, high-intensity discharge lamps, halogen lamps, automotive lamps, motorcycle lamps, special light sources, electronic ballasts and light-emitting diodes. The advanced electronic management system and perfect logistics distribution network have realized the desire of Osram products to serve thousands of households in China.
Technical advantages
1. "FaceTIng" of SiC substrate;
2. It has a leading edge in fluorescent materials for white LEDs;
3, zz is installed with power type packaging technology and vehicle lighting technology.
Enterprise status in 2008-2009
Osram achieved 4.624 billion euros in 2008, down 1% from 2007. Among them, general lighting accounted for 51% of total revenue, automotive lighting 16% showed lighting 4% other semiconductor and optical equipment 29%. Osram's financial expenditure in 2008 was 386 million. The euro, compared to 284 million in 2007. Osram is also optimistic about the development prospects of LED, and firmly believes that LED will occupy at least 1/3 of the general lighting market by 2020. In terms of technology, the company reinvested 5.8% of its revenue into research and development, of which OSRAM Opto Semiconductors' R&D investment ratio was as high as 15.1%.
In 2008, Osram continued its efforts in front-end and high-end lighting applications, such as architectural lighting design, landscape lighting, and the operation of novel small/handheld fixtures. The company has also increased its research and development of OLEDs, especially in the field of lighting applications, while vigorously developing off-grid lighting and lighting systems with the greatest advantage of energy saving and environmental protection. The company has put the corresponding technologies and products in Africa, India and other countries and regions. Promotion. In the meantime, Osram and Cree increased their reliance on the Asia Pacific market. In 2008, Osram provided 77% of sales revenue to Osram and 18% in Asia Pacific. Since the establishment of the company's second R&D production center in Malaysia in 2007, Osram has established its Asia Pacific headquarters in Hong Kong, focusing on the development of China and India. .
The leader of the automotive lighting industry was greatly affected by the decline of the world economy, especially the automobile industry. For the downturn in the automotive industry, Osram believes that recovery is sooner or later, and efficient and high-quality automotive lighting systems cannot be replaced. The company said it will control measures to reduce usage costs and focus more on technology and market-oriented, more long-term strategies.
3. Philips (PHILIPS)
Philips Lighting offers advanced energy efficient solutions for all areas including road, office, industrial, entertainment and home lighting. Philips is also a leader in the use of future applications and technologies for new lighting, such as LED technology. The company's main products include, æ°™ car lights, road lighting, ambient lighting.
Philips established its leadership position in the LED chip industry mainly due to the acquisition of Lumileds, a joint venture between Agilent and Philips in 1999. In 2005, Philips completely acquired the company. Philips Lumileds is the world's leading provider of high power LED lighting solutions. The company has always been committed to promoting the development of solid-state lighting technology, improving the environmental protection of lighting solutions, helping to reduce carbon dioxide emissions and reducing the need to expand power plants, and the company's leading light output, efficiency and thermal management is a long-term effort in this regard. Direct result. Philips Lumileds' LUXEONLED products offer new options for store, outdoor, office, school and home lighting solutions. Philips Lumileds is available in a variety of LED chips and LED packages, including LEDs in red, green, blue, amber, and white.
Technical advantages
1. Unique heat sink design and Si-Submount "Flip-Chip" packaging technology;
2. It has a first-mover advantage in high-power white lighted lighting.
Enterprise status in 2008-2009
Philips' sales increased by 17% in 2008 mainly to support the acquisition of Genlyte and Color KineTIcs. The adjusted portfolio change of 18% and the unfavorable exchange rate impact of 4% of sales increased by 3% compared to 2007. This increase was mainly due to continued sales growth in the field of energy-efficient lighting solutions. The company's diversified product portfolio has enabled it to maintain a level of profitability in the rapidly declining economic situation in the second half of 2008, as demand in the automotive, consumer goods and construction industries has fallen sharply. Sales of green products increased by 12% from 2007 to 2.97 billion euros. This growth is mainly driven by increased sales including solid-state lighting applications, as well as strong product innovation design and application-based solutions, with the company's revenue in the SSL sector increasing by 6% to 470 million euros in 2008.
Regionally, sales in mature markets have declined slightly compared to 2007; revenues in energy-efficient lighting solutions have largely offset losses in the automotive, consumer goods and architectural lighting markets in the deteriorating economic environment of North America and Western Europe. Sales in emerging markets increased by 8%, with all of the businesses in India, Eastern Europe and ASEAN countries (except for special lighting applications) achieving strong double-digit sales growth.
In 2008, the company's interest rate before interest and tax depreciation was 538 million euros, accounting for 7.6% of sales compared with 2007, a decrease of 184 million, including 221 million euros restructuring costs and 0.41 billion euros related to acquisition costs. Earnings in 2008 were also affected by the compression of gross margins in mature markets, and the gains in acquisitions partially offset the slowdown in demand in areas such as automotive and architectural lighting.
In 2008, the company's EBIT was 165 million euros, compared to 675 million euros in 2007. In 2008, PHILIPS filed a €232 million non-cash goodwill impairment for Lumileds, mainly due to weak demand in the automotive, display and mobile phone markets.
Pre-financing cash flow activities include a cash payment of 1.825 billion euros, mainly related to the acquisition of Genlyte and the total expenditure related to the acquisition in 2007 was 1.162 billion euros, mainly related to the acquisition of PLI and Color KineTIcs. In addition to the above-mentioned acquisitions, the increase in cash flow before the financing activities increased by 173 million euros compared with 2007, and the company's net capital expenditure increased by 54 million euros due to higher investment in solid-state lighting solutions.
Given that the economic outlook may continue to deteriorate, PHILIPS believes that 2009 is a very challenging year. The company will not only continue to maintain contracts in the construction and automotive markets, but also strive to maintain consumer confidence in most emerging markets. In this environment, PHILIPS said it will proactively expand its restructuring plan and select more effective cash management measures to further reduce (fixed) costs last year and ensure that investors begin to present a favorable balance sheet to investors in 2009. In order to achieve sound financial management, the company will stop the share repurchase program, and will continue to closely manage the company's market and competition. PHILIPS hopes that through strict cost and cash management, coupled with a strong brand and balanced portfolio advantages, it will be able to weather the current economic turmoil and achieve more powerful targets when economic conditions are restored.
This series features transparent LED screens, which are suitable for various indoor places and various stores, especially in storefronts with floor-to-ceiling glass windows. Installing the transparent screen against the glass wall has a very good effect. When the display is turned off, the audience can watch the indoor environment from the outdoors, and when the display is turned on, they can directly watch the content played on the display.It not only preserves the visibility in the store, but also can effectively display advertising videos to the other party, which is very practical.
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Guangzhou Cheng Wen Photoelectric Technology Co., Ltd. , https://www.nbcwdisplay.com