LED ekrano reklamos laikmenos taip pat pasižymi didelio efektyvaus pasiekiamumo savybėmis. Palyginti su tokia žiniasklaida, kaip televizija ir laikraščiai, LED ekrano kaina yra palyginti maža. Dėl šių unikalių vertybių spalvotų{0}}LED reklaminių ekranų medija natūraliai tampa lauko medijos pradžia. Skirtingai nuo tradicinės lauko medijos, spalvotas-LED ekranas nėra tik lauko laikmena. Ji taip pat turi TV ir kitų medijų ypatybes ir privalumus. Ji turi didesnę kūrybinę erdvę ir platesnę trijų-dimensijų erdvę sąveikai ir bendravimui su vartotojais. Tai unikali ekrano forma, atitinkanti individualius poreikius ir turinti komunikacijos skaitmeniniame amžiuje koncepciją.
skystųjų kristalų ekranas
Naudodami LED ekranus dažnai susiduriame su tokiomis problemomis. Gaminio pradžioje LED ekranas veikia įprastai, tačiau po tam tikro laiko ims blyški šviesa, mirksėjimas, gedimas, nutrūks šviesa ir pan., todėl gaminys bus rimtai pažeistas. Šio reiškinio priežastys yra maždaug tokios:
1. When applying the product, there are problems with the soldering process, such as high soldering temperature, too long soldering time, and failure to prevent static electricity. More than 95 percent of these problems are caused by the packaging process.
2, the quality of the LED itself or the production process.
Prevention method
1. Do a good job of controlling the welding process.
2. Carry out aging test on the product
Aging is an important guarantee for the reliability of electronic products, and it is the most indispensable step in product production. LED products can improve performance after aging and contribute to stable performance in later use. LED display aging test is a very important link in product quality control, but in many cases it is often overlooked and cannot be properly and effectively aging. LED aging test is a countermeasure taken according to the characteristics of the product's failure rate curve, that is, the bathtub curve, to improve the reliability of the product, but this method is not necessary. After all, the aging test sacrifices the life of a single LED product. At the cost.
LED aging methods include constant current aging and constant voltage aging. Constant current source means that the current is constant at any time. There is a frequency problem, not a constant current. That is alternating current or pulsating current. AC or pulsating current source can be designed to have a constant effective value, but this kind of power source cannot be called a constant current source. Constant current aging is a characteristic of LED current work and a scientific LED aging method; overcurrent impact aging is also a new aging method adopted by LED display manufacturers. This type of aging is carried out by using a constant current source with adjustable frequency and adjustable current. , In order to judge the quality and life expectancy of LEDs in a short time, and can pick out many hidden LEDs that cannot be picked out by conventional aging.
Ankstesnis LED skaidraus ekrano laidų sujungimo būdas
