Key word: LED pixels,RGB, LED dip, led smd, IP65, led display, led modules,led pcs board, indoor led dispay, outdoor led display. Small pitch, low brightness, ;lamp,
After ten years of efforts, LED electronic display industry has been greatly developed, rapidly improving technology and quality level, LED electronic display industry has been basically formed the basic framework for the standardization system, enterprise standardization work has made great progress. Standardization of regulating the market, improve product quality industry, and promote the overall development of the industry played an important role. Industry testing work also contributed to the technological advancement and quality improvement industry. I believe the standards and testing work will get more and more attention.
1, many of the company's products fails "led electronic display general specification" requirements for environmental adaptability (6.9) test. So involving environmental temperature, vibration and other indicators, it is difficult enough to prove that the product meets the requirements of the contract or the tender, there is no assurance of product quality.
2, the companies within the industry to "led electronic display general specification" safety requirements (6.4) seriously enough. Ground, security tags, the leakage current, dielectric strength and temperature and other indicators of safety and quality is very important, such as failure to bring personal injury or other catastrophic damage. In accordance with the provisions of the relevant national standards are mandatory for such projects fatal flaw, a defective item is defective after testing or product engineering.
3, many references to the term contract or tender irregularities. Not "led electronic display universal norms" and "led electronic display test methods" in the existing definitions and standards. The names and references to other relevant indicators, resulting in not properly detect, in the case of a seller's market, the user is not conducive to the manufacturer for explanation, resulting in unnecessary trouble and controversy.
4, a clear part of the detection or identification of projects currently undetectable. Commissioned units, especially outside of the display detect the user great expectations. For example confirm the origin and quality of the light tube, LED display operating current is detected, the judge video effects, evaluation and testing of Henan LED large screen display overall quality of the production process, these users concerned about the project is currently unable to meet the requirements of the requester , standards need to be improved to improve in the future work.
5, LED full color display current inspection work, are generally placed after the installation, and testing should be part of the pre-production process and the products manufactured on conduct should not be all on the acceptance or delivery proceed.
6, lack of reasonable industry standards and effective quality testing methods and eligibility criteria. Since the display is composed of a large number of display units, taking into account the uncertainties in the scene, there will be a local area or part of the display indicators (especially assembled precision) below standard. Hence the need to introduce a reasonable sampling methods, inspection rules to make the display more reasonable and feasible.
7, companies should establish enterprise standard products and raw materials, components and inspection rules display unit allows the display of maximum brightness, viewing angle, color and other indicators of the main wavelength error is guaranteed in the production process.
8, enterprises should establish a quality inspection agencies and with appropriate quality testing equipment. No part of small businesses to implement industry-standard equipment and professionals, resulting in the construction of a third-party product testing data with the contract requirements were quite different.
9, enterprises should strengthen the factory inspection. Preflight inspection and increase plant before completion of the project. And preflight inspection by plant can be completed before the self-correcting defective item, so that the third party or customer's final acceptance smooth clearance.
10 industry associations should establish a more professional testing team and is equipped with the appropriate test equipment, training professional testing personnel to meet the testing requirements of the market and the member units.
LED drive power encapsulants for general electronic components, power supply module and potting protection circuit board, and a variety of electrical and electronic potting, such as switching power supply, power supply, automotive HID lamp module power supply, automotive ignition system module power supply , home appliances controller, network transformers. Many customers do not understand the use of LED drive power encapsulants, and now by the Kee Chong Technology as we explain below regarding the use of LED drive power encapsulants:
1, before mixing: A, B component were first carried out by manual or mechanical stir, avoid the filler sedimentation caused by performance changes.
2. Mixed: 1: 1 ratio in the two parts weighing stir into a clean container, the error should not exceed 3%, otherwise it will affect the cured performance.
3, degassing: natural degassing: the mixed plastic stand for 20-30 minutes, vacuum degassing: degree of vacuum 0.08-0.1MPa, vacuum 5-10 minutes.
4, perfusion: should the rubber primed in the operating time, or affect leveling. The front surface of the substrate potting kept clean and dry.
5, the cure: room temperature or heat curing can be. Adhesive curing speed and curing temperature has a lot in the winter take a long time to cure, it is recommended heating curing, curing 15-30 minutes at 80 ℃, room temperature curing normally takes about 6-8 hours.