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As the saying goes, adept guard the entrance, dilettante watch the scene of bustle. Wide variety of LED display to show the audience linger, so we should how to discern the stand or fall of LED display? On the occasion of the arrival of the 3.15, the reporter in guangzhou LED show factory wholeheartedly teaching tips, summarizes a set of choice of high quality LED display strategy.
In terms of performance parameters, the so-called good LED display, also refers to the screen has a high gray scale, high refresh rate, high utilization rate. The following is to introduce how these a few characteristics of LED display:
LED display the gradations of color is gray or gray, is refers to the brightness of light and shade degree. For the LED digital display technology, gray is to display the number of color. In general gray level is higher, shows the more colorful, the picture is more exquisite, more abundant details.
High refresh rate refers to the electron beam on the image on the screen the number of repeat scanning is higher. The refresh rate is higher, shown in the image (images) stability is better. The refresh rate will directly decide the price, but due to the refresh rate and the resolution limit and therefore only achieve high refresh rate under high resolution in this way can display as excellent performance. Currently on the market normal LED display refresh rate of about 800 to 1500 hz, for high refresh rate of more than 4000 hz.
LED high utilization means don't need to use the power of LED, can achieve the required brightness, moreover, can also reduce the energy consumption of the LED display. On the 10th guangzhou international LED fair, enterprises show the different shape of LED display, have a spherical shape LED display, column type LED display, arc and Angle LED display, in the space utilization, and presents the form would be more efficient, it also means that application range is more extensive.
From the aspects of visual effect, can choose a good LED display from the following three aspects:
1, white balance effect. The white balance effect is one of the most important indicator display. Chromatology on red, green and blue color for the proportion of 1:4. Lost. 6 shows the pure white, if the actual rate is a little deviation will appear white balance deviation, generally pay attention to whether there is a slant blue, white slant yellow phenomenon. The stand or fall of the white balance is mainly determined by the control system to display, tube core of color reducibility may also be affected.
2, brightness and the viewing Angle. Indoor full color brightness to above 800 CD/m2, outdoor full color brightness to above 1500 CD/m2, to guarantee the normal work of the screen, otherwise it will because the brightness is too low and can't see shown in the image. Mainly by the size of the brightness of LED tube core is good or bad decision.
3, the display of surface roughness to within + / - 1 mm, to ensure that the image is not distorted, local convex or concave leads to display the visual Angle of corner. The stand or fall of flatness is mainly decided by the production process.
Source: BVSION Electronic