Standard for customers to choose high quality LED display screen

In recent years, LED display screen is widely used in various fields such as indication, display, decoration, backlight, general lighting and urban night scene. It can be roughly divided into: indoor LED display, outdoor LED display, commercial LED advertising screen, led creative screen, stadium LED screen, LED floor tile screen, LED color screen, ฯลฯ.

different companies focus on different sales strategies. Some companies focus on price war, วัสดุ, performance, quality are often unsatisfactory, do not covet cheap, buy some substandard low-quality products, regret.

So how can consumers choose a product that they are satisfied with in the complicated environment of LED display industry? The following LED display factory will briefly summarize several points for you as your reference for screening: the most important component of

LED display screen is led device. The general selection criteria are: ความสว่างสูง, low operating voltage, การใช้พลังงานต่ำ, large-scale, long life, impact resistance and stable performance. Failure rate
refers to the failure rate of LED display screen from the beginning of assembly to 72 hours aging, and the failure rate shall not be higher than 3 / 10000 (refers to the failure caused by LED device itself)

2 2 LED is a semiconductor device, which is sensitive to static electricity and easily leads to static failure. ดังนั้น, antistatic ability is very important to the life of display screen. พูด, พูดแบบทั่วไป, พูดทั่วๆไป, the failure voltage of LED human body electrostatic mode test should not be lower than 2000V.

3. Flatness
LED display surface flatness should be within 0, so as to ensure that the display image will not be distorted. Local bulge or concave will lead to dead angle of the display screen.

4. Brightness and visual angle
the brightness of indoor full-color LED display screen should be above 800 ซีดี / ตร.ม, and outdoor full-color LED display screen should be above 1500? ซีดี / ตร.ม, so as to ensure the normal display of LED display screen, otherwise, the brightness will be too low to see the displayed image. If the environment is very bright, please give priority to LED or rear projection. The brightness is mainly determined by the quality of LED tube core? The size of

visual angle directly determines the visible area space of LED display, so the larger the better. The size of visual angle is mainly determined by LED chip.

5. White balance effect
white balance effect is one of the most important indicators of LED display. In chromatics, when the ratio of red, green and blue is 1:4.6:0.16, the pure white will be displayed. If the actual proportion has a little deviation, there will be a deviation of white balance. The quality of white balance is mainly determined by LED chips, and LED chips also have an impact on color reducibility.

6. Color reducibility
color reducibility refers to the color restoration of LED display screen, that is, the color displayed on LED display screen should be highly consistent with the color of the playback source, so as to ensure the authenticity of the image.

7. Whether there are mosaics or dead spots?
mosaics refer to the small four squares which are always bright or black on the LED display screen, which is the phenomenon of module necrosis. The number of dead point is mainly determined by the quality of LED chip. ก 6032 ก 6032 8. With or without color block a 6032 color block refers to the lack of color in a small area; the main reason is to control the IC and power supply, control the quality of circuit layout.

9. The appearance of LED display screen
LED display screen appearance is the most intuitive, the most original to do the most preliminary evaluation of product quality. The appearance quality can reflect the production process and material quality of LED display screen manufacturer.