Weak current College】 【large screen is it sew concatenation system screen selection guide.

<br> <br> Current large screen display system splicing seamlessly in Conference rooms, control rooms and virtual simulation areas have access to a wide range of applications, in a variety of application areas in large screen is it sew concatenation system technology are using screen .bears vision Center, is essential. If the projection screen select inappropriate, is equivalent to the entire system sets a bottleneck. Regardless of how the system or other equipment performance, overall visual effects will be, unable to put the system of perfect performance fully evident ., therefore, for the purchase of large-splicing screen should not be given. This article briefly describes the large screen is it sew concatenation system selection screen to be taken into account. <br> <br> First, choose the screen should take into .account environmental factors of the system <br> <br> 1. building structure: <br> <br> This mainly refers to the formation of the large screen is it sew concatenation system objectives to be achieved, as well as internal geometry, it .decided a large-screen display of the size and location, and implementation. <br> <br> 2. Visual business scenarios: <br> <br> Including the main number and location of the observer, the minor number and location of the .observer and the lighting conditions. <br> <br> In the design of large-screen display system, and watch the display different, due to the large-screen display for features not only information but also to share information and comprehensive information, particularly .the large-screen display is not possible to give the viewer the same position and viewing, so to distinguish and identify the main Viewer, a minor number of spectators, watching the location and watching the way is important. For example, a large screen in .the main role is to promote and to visitors to watch, according to the visitors visit the channel and watch location to determine the location and the large screen size. <br> <br> In addition, the system environment of lighting design and large- .screen display has close links, should be consolidated. Uniformity of illuminance and its direct impact on the large screen display brightness and contrast of OK, so it should be given adequate attention. <br> <br> 3. system information: <br> .<br> Including the nature of the signal (computer graphics, video), signal resolution, signal source and signal transmission mode, and displays both the number of requirements and modalities. <br> <br> Display system (equipment) primary role is .to reproduce the signal real, so understanding displayed signal on select what kind of large-screen display technology has a direct relationship. The number of signals and display requirements (how many simultaneous display) combined with the viewer's location and distance decided to big screen size .and display unit quantity. <br> <br> <br> Second, how to choose a large screen is it sew concatenation system screen <br> <br> 1, combined with the size of the system environment to determine the screen size of .geometry: <br> <br> 1, according to the most distant viewing distance to calculate the height of the screen <br> <br> Up to watch the distance is defined as the last row, the distance between the edge of the screen ., the Viewer. General big-screen display of height H = MDV/4-8 <br> <br> 2, according to a recent viewing distance to determine the screen width <br> <br> Recent viewing distance refers to the first .row of the Viewer, the distance from the big screen, because the first row of the edge source of viewers watching the big screen to the other side of the deformation and when graphics, distortion of the first row of the distance from the big screen and .the first row of table arrangement and the width of the big screen. In General, most edge Viewer and other side view graphics not more than 45 degrees, with a maximum of 60 degrees. <br> <br> 3, big-screen height .from the ground to ensure that the back of the watch, the viewer should be more than front staff head's height or will control room designed for ladder format, the height of the current console is generally between 110-125 cm, large screen height from the .ground shall not be less than the height of the console. <br> <br> 2. Select large seamless mosaic screen should consider indexes <br> <br> Screen material and resolution <br> <br> Screen resolution directly affects the clarity .of the screen, and different screen materials have different resolution, various lens material screen regardless of the resolution from the angle of view or affect the screen display resolution and sharpness. <br> <br> Screen angle of gain and <br> <br .> In previous mosaic projection system, due to technical limitations, the brightness of the projector is unable to do so is very high, so in order to increase the brightness on the screen projection, generally require a relatively high rate of gain, but it will .affect the degree of contrast and color and smooth. Now the development of the projection technology is very rapid, projector brightness is not a problem, so the requirements on the projection screen, gain rate is placed in a lower position, while the main screen of .flatness, angle of contrast and uniformity. <br> <br> Projection screen gain and perspective is a rightness of Antinomies, larger screen screen gain perspectives will be smaller, so in the big screen is it sew concatenation system for screen gain select agreed that .1.0 (+ / -0.5) can yield better image, this ensures that even if the audience stood at the edge of the area is also very ugly screen picture of fusion, this picture of overall homogeneity. <br> <br> Screen uniformity < .br> <br> Good uniformity can ensure screen horizontally, vertically, from 0-180 ° watch, screen brightness, and color consistency, uniformity of the screen and projector, projection of not only the technology are closely related, and screen their own materials ., surface material homogeneity of the screen on the projector screen uniformity played a good complement. <br> <br> The smoothness of the screen <br> <br> Perfect screen should minimize the creases and folds. <br> <br> Super .dawufeng <br> <br> To meet the needs of the user on the projection screen brightness (high gain), flatness, uniformity of high demand, the large screen is it sew concatenation system for screen also requires adequate and the screen itself does not .have the slit demerits. Obviously, this time using the mosaic screen will greatly reduce the screen effects, impactScreen and intuitive visual impact. Therefore, the entire seamless large-screen splicing system more in line with the demand. <br> <br> 3 .. choose the large screen is it sew concatenation system screen should also take account of other factors <br> <br> Large screen is it sew concatenation system already from the initial virtual simulation and virtual reality applications widely extended to command and control, virtual simulation .and training, industrial manufacturing and design as well as scientific research and complex decision-making process, and in the exhibition, advertising, entertainment applications has become increasingly popular. The placement of the screen is no longer confined to the indoor environment, and therefore should .also be made with regard to environmental considerations in easy-to-maintain products, such as cleaning, reduces ambient light effects of the drop shadow effect. <br> <br> 3. Select a good screen provider <br> <br> The .Division of the screen is no longer simple into positive vote / rear projection screen, hard / soft screen, which is becoming more and more refined. For example, fit into the side of the screen, dedicated simulation screen, the screen can acoust, electric .screen, and so on. A true screen experts will provide professional advice, have the ability to provide a full range of products that give users the most caring support. <br> <br> <br> <br>.