6 Methods to test the quality of LED

We’re going to talk about 6 Methods to test the quality of LED, There are also more and more LED products, such as the familiar full-color LED display, small-pitch LED Display, transparent screen and so on.

Therefore, how to distinguish between the good and the bad of the LED display has become a thorny issue for the majority of users.

(6 Methods to test the quality of LED)

So we’re going to talk about 6 Methods to test the quality of LED:

1. Brightness:

The brightness of the display screen is generally reflected in the outdoor screen, Because the outdoor screen is outdoors, it has to withstand more tests than the incoming water.

The brightness of a normal outdoor full-color screen should be above 1200cd/㎡-2000cd/㎡, and the current brightness of conventional LED beads can reach this level.

2. Balance effect:

the second way of 6 Methods to test the quality of LED, The balance effect is an important indicator that cannot be ignored for LED screens, Now most of the shoddy manufacturers are not very clear about this indicator.

In color science, pure white will be displayed when the ratio of the three primary colors of red, green and blue is 1:4.6:0.16.

If there is a slight deviation in the actual ratio, there will be a deviation in white balance. Generally, pay attention to whether the white is blue or yellow Green phenomenon.

3. Color reproduction:

The color reducibility of the display screen refers to the reducibility of the screen color, which means that the color displayed on the screen must be highly consistent with the color of the playback source, so as to ensure that the image displayed on the display screen is stable and true.

4. Whether there is a dead point:

ONE OF THE Important of the 6 Methods to test the quality of LED, The dead point we often say refers to a single point that appears on the screen that is always on or black.

The number of dead points is mainly determined by the quality of the LED beads. Generally, the use of braided genuine lights will not cause mass death.

The problem of the LED, and some dead LEDs are caused by virtual soldering during the patch, If there is a dead point on the screen, it will greatly affect the visual effect of our viewing, so if it is found, it must be solved immediately.

5. Whether there are color blocks:

Color block refers to the obvious color difference between adjacent modules, The color transition is based on the module, If the color block occurs, it is mostly caused by poor control system or low gray level of the screen.

6. Screen flatness:

Regarding the flatness of the display screen, this does not require a professional user, because it is only visible to anyone with eyes.

The normal flatness of the display should be within ±0.1mm, so as to ensure that the image broadcast on the screen will not be distorted, but local protrusions or recesses will cause a blind spot in the viewing angle of the display.

It is best to ensure that there is no gap between the module and the module during the installation process, The display screen below P3 should pay special attention to this problem when assembling.

If there is a gap between the module and the module, it will be very difficult to play the screen You may see black lines, After we have explained 6 Methods to test the quality of LED, we will talk about the duration of the LED screen.

(6 Methods to test the quality of LED)

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HOW LONG WILL MY DISPLAY LAST?

Lifetime – 6 Methods to test the quality of LED

one of the most Important OF What you should know about LED screens.

The typical life for an LED display is 100,000 hours, or about 10 years give or take, However, there are many variables that affect LED life, including diode manufacturer, environment, and how the display is used over time.

For example, the life of a display could be significantly reduced is a user operates a display at full brightness and bright/light content for the majority of the content schedule, The brightness for LED displays should be regulated and scheduled according to ambient light.

For example, screens that are blinding at night because they are needlessly set at full brightness are losing their LED life over time.

(6 Methods to test the quality of LED)

How to choose the size and resolution of LED display?

The size and resolution of the LED display must be considered according to the specific application scenarios and requirements.

(6 Methods to test the quality of LED)

Generally speaking, the selection of LED display size to consider the following three factors:

1- Application scenario: Select an appropriate LED display size based on the specific application scenario and requirements. For example, in outdoor advertising places, generally choose larger size LED display to achieve better publicity effect.

In indoor Spaces, LED displays of appropriate size can be selected based on factors such as the actual space size and distance from the audience.

2- Budget constraints: The larger the size of the LED display, the higher the price.

Therefore, budget constraints need to be taken into account when selecting LED display sizes, and the appropriate size should be selected to meet the demand while staying within the budget range.

3- Installation conditions: When selecting the size of the LED display screen, it is necessary to consider its installation conditions, including installation location, fixing method, support structure and other factors to ensure stable and reliable installation.

The resolution of the LED display also needs to be considered according to the actual demand.

(6 Methods to test the quality of LED)

Generally speaking, the selection of LED display resolution to consider the following 4 factors:

1- Display content: According to the specific content to be displayed, select the appropriate resolution to display clear and delicate images and videos.

2- Audience distance: The farther away the audience is, the lower the resolution is required, and vice versa.

Therefore, the selection of LED display resolution needs to consider the distance and perspective of the audience and other factors.

3- Budget constraints: The higher the resolution, the higher the price.

Budget constraints should be taken into account when selecting LED display resolution, and the appropriate resolution should be selected to meet the demand while staying within the budget range.

4- Compatibility: When selecting LED display resolution, it is necessary to consider its compatibility.

Whether the selected resolution is supported by the controller or other related devices.

In conclusion, when choosing the size and resolution of an LED display, it is necessary to consider application scenarios, budget constraints, installation conditions, display content, audience distance and compatibility.

Screen display resolution is one of the most important criteria for choosing a suitable screen.

With the tremendous development in the visual content industry (movies – pictures – programs – serials..etc…)

It is important to choose the best display resolution for the screen, as the largest display resolution gives you a very accurate and clear viewing experience, and you can enjoy watching your favorite programs and content with the smallest details in an immersive and wonderful viewing experience.

With a bigger or higher screen, you can watch your favorite star or a wonderful natural scene as if you see it in real life, and this is due to the quality of the display panel or screen.

where the higher resolution means that the display screen contains a greater number of pixels, which means a sharper display And clear with a wonderful and comfortable viewing.

you will not strain your eyes to search for image details that may not be available in the case of using a low-resolution TV screen (less pixels per inch).

The importance of the screen resolution comes at the forefront of the standards and specifications that the consumer is currently looking for, and that is with the start of the availability of video and photo content with a resolution of 4k specifically.

There may be content with a resolution of 8k soon, and the acquisition of a screen with a high display resolution becomes necessary to obtain the best immersive viewing experience with charming details that take you to a world of Dazzling entertainment as if you live inside the scene with the smallest details.

(6 Methods to test the quality of LED)

There are common terminologies in the field of display resolution.

For example, the letters “HD” mean:

HD resolution in the screens, which is the standard resolution, and the letters HD come as an abbreviation for the English phrase (High quality display), which means in Arabic (high quality display).

The HD screen can display an image consisting of (1280 horizontal pixels x 760 vertical lines) and the “FUL HD” resolution is higher and better than the standard HD resolution, as the FHD screen can display with a resolution of (1920 vertical pixels x 1080 lines or vertical pixels, the image The following explains more about the terms screen resolution and what they mean.

The higher the screen resolution or “Screen Resolution”, the more suitable it is for larger screens

For example, the display resolution is HD 1280 * 760.

This means a display resolution of pixels, 1280 by the width of the screen multiplied by 760 pixels, by the height.

This is equal to 972,800 pixels that make up the display screen, but this number is actually multiplied by three, because each pixel in the display screens is composed of three smaller sub-pixels.

in the main colors, so the real number of pixels for screens with HD image quality is equal to 2,918,400 million pixels It works to show the image on this screen, the rest of the terms we mention in succession.

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