From its birth to the present, LEDs are constantly being updated. How to ensure the performance and quality of these products and make LED products more trustworthy has become one of the important issues for the future development of LEDs.
The application range of LED display products is constantly expanding, and the products are constantly diversified, and the inspection requirements for LEDs will also continue to increase. The same product uses different inspection methods, and even the same method is used in different inspections. Institutions, there may also be deviations in the test results. Therefore, in order to unify the various parameters we need to obtain and make the results of different testing institutions comparable, we need to quantify various test indicators and standardize various testing methods, that is, we need to customize various testing methods. The need for product and testing standards.
LED display, in general, each light source is white light, but careful observation, the light emitted by each lamp is different, it can be said that the color temperature of these four lamps is gradually increasing. But this is only our understanding of the sensor tube. To get a quantitative value, we must use the specified instrument or method to measure, so as to obtain the color temperature value of each lamp. This process includes the application of two layers of standards. One is the measurement standard of the testing agency. When the testing agency measures the LED lights, it must use the specified instruments in accordance with the specified methods, and these instruments are calibrated by statutory agencies. In order to ensure that comparable test results can be obtained in different testing institutions, the other layer is the product standard of LED lamps. When manufacturers produce lamps, they must mark the products according to the product standards.
In the process of LED development, my country has also formulated some standards, which play a huge role in promoting the development of my country's semiconductor light-emitting diode industry. However, with the advancement of technology and the expansion of application fields, some standard technical contents are backward, such as the testing method of semiconductor light-emitting device, which was formulated 20 years ago and has not been revised, which can no longer meet the needs of ultra-bright light-emitting diode products. When the chip is delivered as a product, there is a lack of corresponding technical requirements to specify the quality level and performance requirements of the product. Generally speaking, the semiconductor lighting technology certification needs to be formulated urgently.
