How to Improve Clarity of LED Display?

June 21, 2019

As the main carrier of commercial advertising and information broadcasting, LED display keeps close pace with the current market trend for high definition image production and better visual experience. High-definition video can often make the image on the display more detailed and realistic and thus bring a more dramatic visual impact. There are two factors should be taken into consideration to achieve high-definition displaying. One is that the video source has to be full HD format, and the other is that the LED display has to be full HD resolution.

Thanks to the breakthrough of LED encapsulation technology, fine pitch LED display is now an important category of LED display and playing an irreplaceable role in special industries like TV studio, board room and monitor room etc. But do you know what will affect the clarity of the LED display and how to improve it? Here is what we are going to share with you in the following chapters.

Chapter 1 Improve the contrast ratio of LED display

Contrast is one of the key factors which affect visual effects of LED display. Generally speaking, the higher the contrast, the clearer the image and the brighter the color. A LED display with high contrast ratio can display sharp and detailed image and ensuring an excellent gray level performance.

If you are looking for a LED display with high contrast ratio, you should look into the LED type and module mask when doing the comparison.

That is because the black LED has better contrast ratio than white LED and will show better image effect. Technically speaking, black LED has lower brightness than white LED, but it won’t be a problem when it is for indoor full HD application. If it is for outdoor events, you should balance the contrast ratio and brightness. But some rental companies did a comparison, for the same outdoor LED display model, the screen with black LED (higher contrast ratio but lower brightness) has better image effect and performance than white LED (higher brightness but poor contract ratio). So, it just depends on your option, the display with black LED normally cost much than white LED.

Except the LED type, you also need to look at the module mask. Normally the darker the mask, the higher contrast ratio it will be.

If you already had one LED display and would like to make the image on your display looks better, you should choose the image or video content with high contrast ratio. It is very practical for commercial advertising billboard, the high contrast ratio content can make the image on display looks really high profile and easier to get attractions.

Chapter 2 Improve the gray level of LED display

Gray level refers to the brightness level that can be distinguished from the darkest to the brightest. The higher the gray level of the LED display, the richer and more vivid the color. The increase on gray level can greatly improve the color depth and enables the display level of the image color increasing geometrically. The gray level of LED display is normally 14bit~16bit, which ensures the LED display showing detailed image effect and makes it the current most preferred media solution for AV industry. With the development of hardware technology, the gray scale of LED display will be improved to a higher level to meet any high end visual experience.

Chapter 3 Narrow the pixel pitch of LED display

The smaller the pixel pith, the higher the resolution. When the market requires higher resolution on the limited display area, the only way is to narrow the pixel pitch. Which is the fine pitch LED display or narrow pixel pitch LED display we have today. For the same screen dimension, the smaller pixel pitch can display more information and create sharper image. But the cost is relatively higher. The lower the pixel pitch, the bigger the price gap. So, when looking for a LED display with certain resolution, both screen dimension and pixel pitch should be taken into consideration to find out the best solution works for your project.

Chapter 4 Use LED video processor

LED video processors is specially designed for LED display for its high-performance image processing. Generally, it can change the resolution format and color space, as well as image scaling.

One of the primary functions of LED video processor is to improve the image quality. With its image enhancement technology and advanced algorithms, it can decorate signal, execute interlaced scanning, edge sharpening, motion compensation and other series of processing to enhance the detail of the image and improve the ultimate image quality.

The image scaling processing algorithm of LED video processor will make sure that the video or image will be scaled to maintain its sharpness and gray level to the greatest extent. In addition, LED video processor has rich image effects option, it will process the contrast, grayscale and brightness of the source image to ensure a soft and clear image output on the LED display.


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