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Did you find that the transformer got very hot just after installing the large LED screen? Or the screen suddenly goes black while the device is running? Let me tell you, this is most likely the transformer causing trouble. Yesterday, an old man who runs an Internet cafe complained to me, saying that the transformer on his stage screen burned out every three days, and the money spent on replacement parts could have been used to buy a new monitor...
1. How terrible is poor heat dissipation? Revealing the secrets of measured data "My LED screen has lost color after two years of use and has had to be repaired three times! "This is a classic symptom of poor cooling. Data shows that for every 10°C increase in temperature, the life of LED lamp beads is shortened by 35%. Last year, due to defects in the heat dissipation design of an advertising screen in a shopping mall, the module temperature soared to 85°C...
Master Zhang, who had just joined the industry, squatted on the 8-meter-high scaffolding and looked confused - where was the promised LED screen inspection opening? This is the third time this week that I was forced to disassemble and assemble the entire screen frame because I couldn't find the access door. Don’t laugh, data shows that 37% of after-sales disputes are due to defects in the design of inspection openings. Let’s talk about this today...
When you look at the cool LED advertising screens all over the streets, do you always wonder - how do you do these moving light and shadow magic? If you sign up for a training class, you're afraid of being cut off, and you can't find a way to learn on your own. Why is it so difficult to learn a craft these days? Don't worry, today we will dig into the knowledge of this industry. Last year my cousin spent 68...
Are you also looking for a large LED screen that saves energy and is not harmful to your eyes? Recently, many shopping malls and office buildings are replacing this kind of green and environmentally friendly display screens, but it is really easy for novices to get into trouble when they first come into contact with them. Last week, a friend who owns a gym asked me: "Why don't other people's screens look dazzling? When the LED screens installed in my home arrive...
Have you ever seen a commercial street at three in the morning? I've seen it - the last time I helped someone repair an LED advertising screen, six electricians rummaged through the control cabinet with flashlights, just to find that fist-sized switching power supply. What's even more shocking is that in the end, it was discovered that the decoration team had sealed it in the ceiling with gypsum boards and demolished half of the wall before taking it out. The maintenance cost soared to five people...
How to choose a display screen that suits the scene? Core parameters determine the display effect: When purchasing LED outdoor rolling display screens, you need to focus on checking three technical indicators: Brightness adjustment capability: Outdoor environments require a dynamic adjustment range of 4000-7500cd/m² to cope with changes in day and night light. refresh...
A few days ago, I was helping Lao Wang, who runs a milk tea shop, choose an advertising screen. The supplier said, "This is a P3 screen." Lao Wang secretly asked me, "What exactly is this P3 screen?" "Today we broke it apart and crushed it into pieces and said, in 5 minutes, you will become a human flesh detector! 1. The secret hidden in the pixels The P value is actually the center of the two lamp beads...
Hey, have you noticed? When advertisements are broadcast on large LED screens in some shopping malls, there is always an "afterimage" when the screen is switched, just like the old TV signal is not good. What's wrong with this? Let me tell you, the problem lies with the "behind-the-scenes steward" of line blanking. Today we are going to take a look at this mysterious and crucial technology...
Hey, have you also encountered this situation? Standing in a shopping mall, looking at the large LED screen that suddenly went black, I wondered: How on earth do you turn off the power of this thing? Don't panic, today we will break down the issue of shutting down the LED screen in a common way and explain it clearly. 1. The power off button may be hidden where you want...
Bosses, do you often have a headache - where should you sell the LED screens that cost a lot of money to develop and make the most money? Today we will spread out the world map and teach you step by step how to find the market gold mine. Let me pour some cold water on you first: Now is not an era where you can just hang up an "Export" sign and make money. You have to learn how to use telescope...
Are newcomers who have just taken over the LED large screen often go crazy? The computer was obviously connected, but no content was displayed on the screen. I was so anxious that I was sweating. Last week, a mall administrator was even more outrageous - he accidentally touched a certain setting, and the entire promotion advertisement turned into snowflakes all over the screen, and he was scolded by the boss. Today we will break it down and understand this...