What are the brands of LED large screens? How to choose?

1.What are the brands of LED large screens?

There are many brands of LED, which are used in various fields, let's take a look at what are the commonly used brands of LED large screens. (In no particular order).

• Qiangli Jucai: Founded in 2004, it is a world-renowned LED display brand.

• Leyard: Founded in 1995, Leyard is a leader in the field of LED video and information distribution displays, specializing in LED applications. 

• Unilumin: Founded in 2004, it is an LED application brand with visual display technology as the core. 

• Sansi: Founded in 1993, Sansi is a technology-based enterprise focusing on LED application technology research and is committed to providing LED display, LED lighting, intelligent transportation and system solutions. 

• Absen: Founded in 2001, it is a high-tech enterprise focusing on the production and sales of LED full-color displays. 

• Lianjian Optoelectronics: Founded in 2003 and successfully listed on the Growth Enterprise Market of the Shenzhen Stock Exchange in 2011, it specializes in LED applications. 

• Lehman Optoelectronics: Founded in 2004, it is mainly engaged in domestic sales, production and research and development of LEDs. 

• Alto Electronics: Founded in 1993 and listed on the Shenzhen Stock Exchange in 2011, Alto Electronics is mainly engaged in LED production R&D projects. 

• Daktronics: Founded in 1968 United States, the world's largest LED display industry, listed on NASDAQ, established Daktronics China in 2005, specializing in the design and manufacture of large-scale video displays, electronic scoreboards and programmable display systems. 

• Luopu: At the end of the eighties of the twentieth century, Nanjing Luopu Co., Ltd. originated from the 14th Research Institute of China Electronics Technology Group Corporation, and is the earliest institution in China to develop and produce large-scale LED displays.

2. How to choose a large LED screen? 

In addition to choosing a brand, when choosing, it is more necessary to consider the current project situation, site, budget, parameters, etc., especially parameters.

When choosing a large LED screen, you need to consider the following parameters: 

• Brightness: The brightness of indoor LED display is 800-1200cd/m², and the brightness of outdoor LED display is 5000-6000cd/m². 

• Viewing distance: The point spacing of indoor LED display is generally below 3mm, and the viewing distance is relatively close, especially the viewing distance of small spacing LED screens can be as close as 1-2 meters. 

• Screen area: the size of the screen, the indoor LED display does not exceed 20 square meters, it is recommended to use the form of bracket; If it is exceeded, it is recommended to use a simple box. 

• Resolution: Resolution refers to the number of pixels on a display, usually expressed in terms of horizontal pixels and vertical image. The higher the resolution, the clearer the display. Common LED display resolutions are 720p, 1080p, 2K, 4K, etc. 

• Refresh rate: The refresh rate refers to the number of times a display updates an image per second, usually expressed in hertz (Hz). 

• Contrast: Contrast refers to the degree of difference between the brightest and darkest parts of a display. 

• Color depth: Color depth refers to the number of colors that a display is capable of displaying, usually expressed in the number of bits. 

• Viewing angle: The viewing angle refers to how visible an image is when viewing a display from different angles. 

• Pixel pitch: Pixel pitch refers to the distance between adjacent images, usually expressed in millimeters. 

• Installation environment: LED display working environment temperature range -20 °C≤t≤ 50 °C, working environment humidity range 10% to 90% RH; Avoid use in adverse environments, such as: high temperature, high humidity, high acid/alkali/salt and other harsh environments; Keep away from flammable materials, gases, and dust, and pay attention to safety in use. 

• Power consumption: The power consumption directly affects the service life of the LED display, the power consumption is large, not only the power consumption, but also easy to accelerate the aging of the LED lamp, for a long time, the display will be yellow, darkened, which also has a certain impact on the visual effect. 

• Flatness: The flatness of the surface of the display screen determines the display quality of the LED display screen, the surface flatness of the display screen should be within 1mm, in order to ensure that the display image is not distorted, if the flatness of the screen is low, it will produce local convex or concave situation, resulting in the unclear angle of view of the picture.