LED display is aimed at the export standard threshold of western countries

"LED display screens export standard thresholds for western countries" the global LED display manufacturing base China accounts for the majority of the share, although the development of China's LED industry is relatively slow, after more than ten years of development, LED display supporting enterprises can easily be found in China, Coupled with the national preferential policies and labor advantages in the past few years, many high-quality LED display factories have been catalyzed. The export of my country's LED display products shows that overseas markets are blooming everywhere, and the export regional structure is more balanced. Among them, the North American and EU markets have become the two largest regions for the export of LED products in my country, but there are differences in the laws and regulations of LED display products in the two regions. Manufacturer concerns.

LED products, as a new generation of green display screens, have gradually risen to global applications. At the same time, with the recovery of the global economic situation and the development of my country's LED industry, the scale of my country's semiconductor display industry continues to grow. Among them, LED general-purpose display screens are still market development. the main driving force. In Europe, the demand for LED displays is expected to gradually increase due to the policy of banning the sale of high-energy-consuming displays in Europe. In addition, a variety of fields including automotive, outdoor and decoration applications, as well as the demand for indoor use of LED displays will also surge, and compliance with EU regulatory access requirements will become a challenge for Chinese manufacturers.

According to the European Commission's decree, display screens and similar products sold in Europe must be affixed with CE certification labels, then the products need to be marked with CE marks, and must comply with the EU's electrical safety, EMC, chemical substances, energy consumption and energy efficiency labels for display products. Wait for the requirements of the following directives: Electromagnetic compatibility test, according to the requirements of the European Union's 2014/30/EU directive, battery compatibility testing includes two aspects: electromagnetic interference (EMI) and electromagnetic tolerance (EMS), the former mainly manifests as conducted interference and radiated interference, and then Those who mainly consider the product's tolerance to such as electrostatic discharge, radiation, burst, surge, conducted interference, that is, anti-interference test. The main tests are: EN55015; EN61547 and EN61000-3-2 power supply harmonic requirements, EN61000-3-3 power supply flicker requirements. Electrical safety testing, Low Voltage Directive (LVD) establishes overall safety requirements for all low voltage products entering the EU. Semiconductor display products are low voltage products defined by it, so they must also follow the specifications of the Low Voltage Directive.

Different LED display products have different corresponding test standards, as shown in the following table: For LED display products, the ERP directive stipulates that LED display screens and control devices need to meet the following requirements: energy consumption requirements: maximum energy efficiency index EEI of the display screen; No-load power, standby power, and load efficiency; LED display functional test requirements: 6000h display survival rate and lumen maintenance rate; number of switches before failure; start-up time; 95% lumen rise time; premature failure rate; display Color index; color tolerance (requirements for color consistency); power factor PF. However, at present, the EU ERP does not have requirements for LED flash frequency; product information signs and energy efficiency labels require: marked luminous flux, nominal life, color temperature, etc. Please refer to the implementation rules (EUNO.1194/2012; NO.874/2012) for detailed requirements and limits; LED display products can be marked with CE if they meet the above electrical safety, EMC, ERP, chemical Rosh, Reach and electronic scrap recycling instructions. In addition, LED display screens and display screens also need to be affixed with energy efficiency labels according to the measured energy consumption data.

The access requirements of the United States and Canada, LED display products exported to the North American market also need to meet the electrical safety, electromagnetic compatibility, energy efficiency and chemical testing requirements of the US regulations; but these requirements are different from the EU directives to some extent in some regions of the United States Different degrees of financial subsidies are also provided for display products that have obtained Energy Star or DLC certification; the current energy efficiency testing of LED display screens and display screens in the United States is mainly focused on Energy Star and DLC of LED display screens, LightingFactslabel They are all voluntary The United States Federal Minimum Energy Efficiency Requirements (DOE) has not yet included LED display screens and LED displays in the scope of control. However, in the California region of the United States, the movable LED display must meet the special requirements of California energy consumption. Electrical Safety Testing The Occupational Safety and Health Administration (OSHA) under the U.S. Department of Labor requires that products used in the workplace must be tested and certified by the Nationally Recognized Laboratory (NRTL) to ensure the personal safety of users, so most Electrical products entering the US market must comply with the NRTL mark, and OSHA has authorized an international certification body as the NRTL certification body to test and issue certificates in accordance with the applicable standards of the product; for the Canadian market, electrical products sold in Canada or imported into Canada must Verified, testing must be done by a laboratory accredited by the Standards Council of Canada (SCC).

For example: the applicable standards for fixed-installed ceiling displays and embedded ceiling displays are ANSI/UL1598 and CAN/CSAC22.2No. 250.0, if these display screens use LED light sources, additional consideration should be given to ANSI/UL8750 and CSAC22.2No. 250.13; If the LED display uses a built-in electronic power supply, in addition to passing the test of the display screen series standards, its built-in electronic power supply circuit must also meet the requirements of UL1310 or UL60950-1. North American display standards are quite different from EU IEC, and North American electrical safety testing does not need to consider EMF requirements. Display standards in North America usually determine the scope of the standard according to the purpose of installation and the place of use.

LightingFactsLabel energy efficiency certification is a voluntary energy efficiency labeling project announced by the U.S. Department of Energy (DOE). It is currently only for LED display products. Higher requirements, disclose the real performance parameters of the product from five aspects: lumens lm, initial luminous efficacy lm/W, input power W, correlated color temperature CCT, and color rendering index CRI. The scope of LED display products applicable to this project is: complete display screens powered by AC mains or DC power, low-voltage 12V AC or DC display screens, LED display screens with detachable power supplies, linear or modular products. ENERGY STAR energy efficiency certification: The ENERGY STAR energy star mark is jointly created by the US Environmental Protection Agency (Environmental Protection Agency, EPA) and the Department of Energy (Department of Energy, DOE) to ensure that the energy efficiency of listed products meets regulatory requirements, but it is Voluntary testing certification.

At present, for LED display screen products, Energy Star LampsprogramV1.1 and the latest version V2.0 can be adopted, but from January 2, 2017, LampsprogramV2.0 must be used; for LED display products, Energy Star test requires version Luminaireprogram V2.0 has officially come into effect on June 1, 2016. There are three main types of applicable LED display screens: non-directional display screens, directional display screens and non-standard display screens. Energy Star has strict requirements on the relevant photoelectric parameters, flicker frequency, lumen maintenance and lifespan of LED display screens. The test method refers to two standards of LM-79 and LM-80.

In the new Energy Star regulation display screen LampV2.0, the light efficiency requirements of the display screen have been greatly improved, the product performance and range have been broadened, and the classification level of energy efficiency and performance has been increased. EPA will continue to focus on power factor, dimming, flicker, accelerated aging schemes and connected products. FTC energy efficiency label, according to the requirements of the FTC law of the US Federal Trade Commission, LED display screens entering the US market need to affix energy labels on the packaging box and display body, and disclose the annual power consumption, life expectancy and other information of the product to the public , The FTC energy efficiency label is similar to the LightingFactsLabel above, but the FTC energy efficiency label is mandatory.

See FTCenergyguidelabel requirements and regulations for details: 16CFR305. DLC's energy efficiency certification, the full name of DLC is "TheDesignLightsConsortium". A voluntary energy efficiency certification program initiated by the Northeast Energy Efficiency Partnerships (NEEP), the DLC certified product catalog is used in high-performance LED displays that have not been covered by the "Energy Star (ENERGY STAR)" standard throughout the United States. promotion.

The latest version of the current DLC technical requirements form is the V4.0 version that will be implemented on September 1, 2016. The display products involved are mainly concentrated in outdoor LED displays for commercial and industrial buildings, such as outdoor wall displays, Display products such as garage display, industrial and mining display, outdoor LED display and LED display tube. Its main performance requirements for the product: total luminous flux, annular luminous flux, luminous efficacy, color temperature, color rendering index, luminous flux maintenance rate, power factor, harmonic distortion. DLC certification requires that the product must be tested and issued a report by a third-party laboratory accredited by NVLAP.

Canada’s energy efficiency testing requirements, for display products, currently Canada’s mandatory energy efficiency requirements NRCan has controlled general-purpose fluorescent displays, general-purpose high-energy reflective displays, and general-purpose display products, but currently there is no mandatory energy efficiency requirement for LED light source display products . FCC/ICES test requirements, FCC is a mandatory certification of the radio disturbance (EMI) characteristic limits of telex video products under the US federal law, but does not include EMS (radio anti-interference) test requirements; LED display There is a big difference between the FCC certification test and the electromagnetic compatibility EMC certification test in the EU CE. The FCC certification methods are divided into three modes: Verification (self-certification), Declaration of Conformity (announcement declaration) and Certification (certification). The certification method used depends on the type of product. For example, the FCC test standard for LED panel display products is FCC47CFRpart15B , the authentication type is: Verification.

It should be noted that the FCC certification of LED displays is divided into ClassA (LED displays used in industrial and commercial environments) and ClassB (LED displays used in residential environments). The test limits of the two types are completely different. CE There is only one radio disturbance test limit standard in the certification, which is similar to Class B in FCC, with an additional 9k-30MHz electromagnetic field radiation test. California Energy Efficiency Requirements, in order to improve the efficiency of electrical products, the California Energy Commission (California Energy Commission) implemented the Appliance Efficiency Regulation (ApplianceEfficiency Regulation) on December 30, 2005. In total, there are more than 20 types of products that must comply with the energy efficiency and use efficiency regulations that must be complied with when entering California, USA.

The latest requirement is the CEC regulations promulgated and implemented in October 2015. For display products, the energy efficiency of movable LED displays must meet the energy efficiency requirements of CEC before they can be sold in California, and the test must be completed in a laboratory accredited by CEC. Canada has also formulated mandatory electromagnetic compatibility requirements for electrical products, referred to as ICES, which is a compulsory certification of the Canadian Ministry of Industry (IndustryCanada). The standard for LED display products is ICES-005, and its requirements are basically consistent with FCCpart15B, but the radiation Test extended to 1000MHz.

From December 1, 2016, ICES-005Issue4 will be officially implemented, and Canada will no longer accept ICES005. In addition, the special optical characteristics of certain LED products are increasingly valued by buyers, such as stroboscopic verification, spectral measurement, color consistency, and color rendering index CRI, LED aging test, energy conversion efficiency, and total luminous flux , viewing angle range and other performance requirements. Therefore, in the face of increasingly fierce competition in the European and American markets, in addition to complying with mandatory certification tests, additional performance often makes it easier for products to stand out among many similar products.

In LED product testing, in addition to common electrical, energy efficiency, electromagnetic compatibility testing and other mandatory requirements, regardless of the EU or North American markets, more and more buyers pay attention to some voluntary certification and performance testing of LED display products, such as the European market recognized GS certificate, American DLC (DesignLightsConsortium), LightingFacts test certification listing, etc. .