How to make the color of LED display more vivid

2022-08-13
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How to make the color of LED display more vivid

color plays a very important role in the visual effect of LED display screen, and it is also one of the standards to judge the quality of products when we buy them. In production, the chromaticity uniformity of LED display screen has always been the focus of manufacturers' breakthrough. It is generally believed that the LED brightness unevenness can be improved by single point correction, and the chromaticity unevenness cannot be corrected, but it is necessary for this complex product, which can only be improved by subdividing and screening the LED color coordinates. How to make the color display of LED display more bright

to manufacture LED display screen, first select the optional light-emitting or display module according to the brightness index, and then determine the color based on the red, green and blue color intensity of the selected product. Usually, the low brightness ratio is used as a brightness reference. When the baseline maximum brightness lightweight 1 is the technical direction adjustment continuously promoted by the automotive industry, and the other (two-color) or 2 (full-color). Dual color display, large in most cases, green as the benchmark, adjust the working current of red 2 transistor. Generally, it is necessary to reduce the yellow color of the working current balance and adjust the standard. For example, if the whole display 1 is reduced, regular inspection must be carried out (about 310 working days of normal use) to show the brightness of the screen. If the color of LED display screen is adjusted to the balance of the state, the brightness of the screen will be reduced. If the screen is displayed to meet the brightness requirements, each color will reach the maximum brightness, and then lose balance. For example: double color screen yellow or red, green

we found that even for the first time, international brands and leaders also have a larger wavelength deviation of color saturation and bias, and the deviation range greatly exceeds the human eye's green difference threshold. Therefore, chromaticity uniformity correction is important. The primary colors of red, green and blue are widely used in the light-emitting color, light-emitting efficiency, light-emitting materials and production technology. Because the LED displays low working voltage, it can actively light and has certain brightness, brightness and voltage (or current) regulation, impact resistance, vibration resistance itself, and long service life, so it is used in large display devices

LED light-emitting materials used in LED display screens have the following forms:

1. Diversified wafers composed of LED lattice modules form a light-emitting time array, which is sealed in a plastic shell with epoxy resin. The fitting line scan drive is easy to form a high-density display for indoor display screens

2. The SMD LED lamp (or LED) is a package in the form of light-emitting lamp welding. It can use indoor LED display screen, realize single point maintenance, and effectively overcome the mosaic phenomenon

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3. The light-emitting lamp consists of a light-emitting diode chip, a reflecting bowl, a metal anode, a cathode, a metal structure, and an epoxy resin shell with condensing capacity. One or more (different colors) provided form a single lamp basic pixel, which is used for outdoor LED display due to its high brightness

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