Alas, have you ever encountered such embarrassment? The large screen in the mall is so bright that it can be used as a searchlight, and the screen in the conference room is as dark as if it is not awake. I want to adjust the brightness but can't find it. Last week, I helped the chain supermarket handle such a case - their promotional screen was reflective during the day and blinded the customers at night, and the store manager was so anxious that he stomped his feet. ActuallyFinding the right adjustment portal is easier than adjusting the volume of your phone​！

1. How much difference is the brightness requirements in different scenarios?

First figure out where your screen is used, which is much more particular about the color of manicure selection:

• ​​Outdoor advertising screen​: You have to compete with the Sun, at least 4,000 nits to jump
• ​​Mall window screen​: It should attract attention but not be dazzling. It is recommended to 1200-1500 nits
• ​​Conference room home screen​​: In line with the lighting environment, 800 nits is just right
• ​Stage floor tiles screen​: Follow the chasing light and you must be able to automatically adjust the brightness

The dance floor screen installed for the bar last year made a joke - the lighting engineer changed the screen brightness to full, but the singer was shaken so hard that he could not open his eyes and almost fell off the stage. In the end, it is still possible to solve this problem by relying on intelligent sensing mode.

2. Three major adjustment channels reveal the secrets

Don't be scared by those buttons, in fact, only three entrances can be done:

1. ​Physical keypad​：

   • The waterproof button box is hidden on the back of the outdoor screen
   • The screen frame of the conference room has touch sensor bars
   • Rental screen box with knob adjuster

2. ​Remote Control Tips​：

   • Press and hold the "menu key" for 3 seconds to enter the project mode
   • The "up+confirm" key combination directly adjusts the brightness
   • Enter a specific code for numeric keys (such as ##321)

3. ​​Software Console​：

   • Computer-side control software with brightness curve diagram
   • Mobile APP can be adjusted remotely (need to be connected to the Internet)
   • Timed task setting sunrise and sunset change automatically

The weird design I saw last week - the interactive screen of a brand store actually had to gesture "OK" to the camera to call out the adjustment menu. This operation is like using magic!

3. Teach you the five-step dimming method step by step

Follow this flow chart and ensure you don’t get lost:

• ​Step 1​: Determine the current brightness value (see the screen information page)
• ​Step 2​: Find the corresponding adjustment entrance (refer to above)
• ​Step 3​: Calculate the target value according to the ambient light illuminance (outdoor screen formula: ambient light × 5)
• ​Step 4​: Gradually adjust in stages (10% increase or decrease each time)
• ​Step 5​: Save the preset mode for convenience for next call

Here is a tip: the screens we customize for customers all have ambient light sensors, which can automatically become brighter and darker like mobile phone screens. Just like the guide screen installed for the library last year, the mode will be automatically switched according to the opening and closing time of the library, which is very worry-free.

4. Three life-saving moves with abnormal brightness

If the screen suddenly changes to a "yin and yang face", try these three tricks:

1. ​Check the power supply voltage​: Unstable voltage will cause brightness fluctuations
2. ​​View signal transmission​: Low-quality HDMI cables will cause brightness loss
3. ​​Testing lamp bead status​: Attenuation of some lamp beads will produce light and dark spots

The case I handled for the gym last month was very interesting - their physical test data screen always dimmed at 3 pm, and finally found that the sunlight was directly shining on the sensor, so I blocked it with a sticker.

5. The editor’s practical experience

After six years of on-site debugging, I found a rule:​Manufacturers who dare to hide the adjustment keys deeply usually have more reliable quality​​. Just like the transparent screen we customized for high-end customers, the brightness adjustment requires fingerprint verification to operate. Although it is troublesome, it is not easy to touch.

Remind all newbies: the higher the brightness, the better, it depends on the actual application scenario. Before adjusting the parameters next time, use the mobile phone illuminator APP to measure the ambient light, which is much better than blind Meng. When we provide training for customers, we will also give mini illumination meters as small gifts. This kind of caringness is like giving a refractory instrument with glasses!

After all, a good screen needs to be used scientifically. If you are worried about brightness adjustment, you might as well write down these practical things, which will definitely come in handy next time you encounter a problem. After all, people who can play with LED screens are gold that shines in the eyes of the boss!

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