LED standard: from the display to advance-LED semiconductor lighting standards, the semiconductor – Electrical Industry
Display of acceptance in accordance with regulations, the acceptance of completed most of the contents of the final key program?? Display evaluation. Owners unit leaders and experts focused vision to the screen television content on a moment, into the discussion:
"Screen brightness seems not enough, not bright colors." Some experts said.
"Font is not clear, look a little fuzzy." Another expert to speak.
"I think the flat screen surface is not enough, some places it seems to have a lack of color?" The question was raised.
"Contract screen playback of up to television effects, big screen TV effect the actual results, much worse than that!" Owners excited voice that becomes extremely tense atmosphere.
Project construction Party's technical staff get together, after some discussions and technical operations, according to the recommendations of contractor requirements, inspection officers stood in front of the screen a certain distance, re-opening of the screen to start playing a new round of shows. First play is a video animation, large-screen images shown in all colors, fonts are very clear; then play video, white clouds blossoming, the grass green, bright flowers, gorgeous glory issue. Project passed inspection!
China Optics and Optoelectronics Manufactures Association, vice president of branch LED display applications, Beijing Stone Intelligent Transportation System Integration Co., Ltd. General Manager, product Zhen in an interview about the story above. Jane stressed that the relevant product, the above scenario, the LED display applications acceptance of the Project is not uncommon. In recent years, with the LED display applications, the expansion of field of use, product, project acceptance and even challenge court case there is also frequent. The crux of the problem lies in understanding product performance and quality differences.
Start from the display application Information obtained in the human, the human eye's view through the information received the largest proportion. However, due to the formation of human visual sensory effects of the complex nature of human perception provide information for the display of products, standardization issues become very complicated on.
According to the China Optics and Optoelectronics Manufactures Association, the Secretary-General Peng Wanhua Branch of optoelectronic devices introduced in recent years, the main LED technology and industrial development is very rapid, its application area also expanded, from the earliest and most widely used LED display to present the more and more hot semiconductor lighting, its product variety, in desperate need of relevant technical standards and product standards. Particularly in the field of semiconductor lighting, relevant organizations at home and abroad were active in organizing and developing standards for semiconductor lighting technology have also encountered many problems, but with the market demand growth, accelerate the development of semiconductor lighting technology standards is an urgent need.
High-volume applications and impact of the products to promote the development of standards. LED display is a more obvious example.
1995 years ago, as the LED display applications, the rapid development of representative products LED display, LED display, but the production was no industry standards and criteria to guide. In 1996 the Department commissioned the original electronic communications company developing Beijing Blue "LED display universal norms", in January 1998, "LED display universal norms" as an electronic industry standard officially adopted, so that the standardization of LED display industry began to standardize. In early 1998, the Chinese branch of Optoelectronic Devices Light Association was formally established LED display professional committees, industry associations set up, guide and standardize the industry in the development of optoelectronic devices and LED display to carry out product testing standards for exchange of technical and coordination work actively. Held in Kunming in 1999 LED devices and applications seminars, and the company commissioned the drafting of the Nanjing Antelope "LED display detection method", to discuss modifications in the organization, in August 2000 issued a formal, professional members of the Committee in LED display units on a trial basis.
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