Do you know? Last month, my buddy opened a racing yard and spent 200,000 yuan to buy a display screen. The driver said that it was like looking at a mosaic when driving to 200 yards. If a novice wants to buy a high-speed LED screen, it is the same as how a novice can quickly increase his fans - it is useless to just look at the parameters, you have to understand the twists and turns in the industry.

​​Let's talk about some industry insiders​​：

1. Many merchants marked ordinary screens as "high-speed screens", and the actual refresh rate was not reaching 1920Hz at all.
2. If the outdoor screen is not heat-dissipated, the control card will be burned directly in the high temperature in summer.
3. Manufacturers who claim to be "not broken for five years" may not even have a waterproof test room.

It is quite interesting that there is an old factory in Shenzhen that supplies Tokyo Racing Park. Their floor tiles can withstand the crushing of racing cars, and the transparent window screen installed on Seoul Commercial Street is still transparent on rainy days. The key is that people do full-process monitoring, from chip welding brightness to box load-bearing test recording, and buyers can check production records at any time - this transparent operation is much more reliable than those who take photos of workshops with their mobile phones.

​​Three must-see elements for purchasing​​：

• ​​The refresh rate must be real​ ​: You have to read the third-party inspection report and don’t believe in the promotional leaf data
• ​​Brightness must be automatically adjusted​ ​: When the sun is poisonous in the morning, it will automatically be full, and it will not be dazzling at night.
• ​​The heat dissipation structure is touched​ ​: Run on the back of the prototype for three hours, the temperature exceeds 45℃ and pass directly

These parameters are hiding

Last time I helped the e-sports hall to select screens, I found a pitfall: many merchants use video refresh rate to impersonate hardware refresh rate. The two things that really need to be watched:

1. ​​Grayscale transition​ ​: Can you see the 16-level grayscale clearly in the high-speed moving screen?
2. ​​Response time​ ​: It will not drag the shadows below 0.5ms

For example: The fence screen installed on the racing yard must satisfy the driver's 200 yards to see the real-time data clearly when turning. The chips of this type of screen must be made of gallium arsenide, and the gallium nitride chips of ordinary screens cannot withstand high-frequency signals.

​​Scenario corresponding parameter table​​：

Life and death line for installation and maintenance

Have you ever seen a curved intelligence screen in the high-speed service area? That can't be installed just by just a welding rack. Reliable manufacturers will be equipped with aviation aluminum boxes, which can be disassembled and installed by 200 square meters in three hours. If you encounter someone who wants to cut the steel structure on site, withdraw quickly!

There is a cold knowledge: manufacturers who have truly made export orders must be equipped with moisture-proof nitrogen packs in the packaging box. The screen is still on for three months of shipping, and few domestic companies can do this.

​​Pit avoidance guide​​：

• Choose a hot-swap backup card slot, and you don’t need to turn off the control card if you change it.
• Requires installation simulation three-dimensional diagrams to prevent them from being unable to install after buying them.
• The brightness decay standard is stated in the contract, and it is considered qualified if it does not exceed 3% per year.

The truth about custom services

Recently, a theme park is going to have a roller coaster interactive screen, with the track curvature reaching 70 degrees. Reliable manufacturers directly dispatched a three-dimensional modeling team, and even the vibration frequency of the equipment was counted. Therefore, the real technology flow is the one who dares to meet abnormal needs.

​​Quick question and answer​​：
Q: Will the entire screen be scrapped if the control card is broken?
A: The modularly designed screen can be replaced in a single piece without affecting the overall operation.
Q: How to judge a real high-speed screen?
A: Use your phone to shoot the screen in slow motion, if there is a black line, it means fake high brushing
Q: Will rainy days affect the display?
A: IP65 protective screen still works on rainy days, but waterproof glue should be applied to the joints

The editor finally said the truth: buying a high-speed LED screen is like a modified sports car engine. You can’t just look at the horsepower (parameters), but you have to look at the chassis adjustment (overall design) and ECU matching (control system). Those whose quotes are ridiculously low will cut corners on the lifespan of the lamp beads or the power supply. Remember, a good screen can speak by itself - if you run for three years without any shadows or color will not decay, that is the real skill.

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