screen splicing

A splicing screen is a complete unit of LCD video wall, both individually as a monitor, but also to a large screen LCD splicing use. According to different needs and achieve big variable is also variable small, variety features: a single split-screen display, single-screen alone, any combination of display, full-screen LCD splicing, vertical screen display.

There are both second andhand hand lcd splicing screen and which are easy to clean and require less maintenance. The lcd splicing screen bead is equipped with a built-in lcd splicing screen design, and generally the most common lcd splicing screen type is the second option. However, the lcd splicing screen bead is less convenient to require and has a built-in storagehesive.

Looking at the large-screen splicing system in my country at this stage, many displays still have more splicing seams in their work. For example, the LCD splicing system has too large gaps to meet the needs of users; while plasma and rear projection large-screen splicing systems have more advantages than liquid splicing technology, but in terms of their visual effects, there are still many split line. Even if LCD, DLP, and PDP technologies are used in engineering, they can only reduce the gap, but cannot completely eliminate them. The seamless LED splicing technology can completely solve the problem of screen segmentation and meet the requirements of complete seamlessness.

The use of seamless LED splicing technology can increase the screen resolution in a small area, ensure the quality of the picture, and meet the needs of users for close viewing. Compared with the existing splicing technology, LED physical seamless splicing can realize cross-screen display. For splicing, its level is not the size of the gap, but the question of whether the gap exists.

The application of seamless LED technology will effectively handle the situation where the brightness and chromaticity attenuation of spliced ​​large screens are different. In this technology, point-by-point brightness and chromaticity correction technology is generally used, which ensures the unity of brightness and chromaticity. For example, the application of point control technology creates a platform for users to correct chromaticity and brightness point by point, and to control the pixels of the screen to achieve a high degree of image restoration. This technology has both SMS and E-mail prompt functions, which can let users grasp the status information of the splicing wall in time.

In the project, a larger viewing angle is provided, and the occurrence of light reflection is prevented. When the picture is taken, the state is relatively stable, and it responds to the dynamic display of the picture. The edge of the image is clear and has good dynamic expressiveness, which can accurately and truly restore the image information. Make the video screen delicate and smooth, bring maximum visual enjoyment. In addition, it is particularly pointed out that the brightness uniformity of the LED screen is excellent, and the single-point brightness correction is carried out to make the brightness uniformity of the entire screen tend to the extreme.

The large screen splicing video display wall is a large screen display system composed of a plurality of display units and video processors, and is generally used for a large screen display of one screen and a multi-window display of multiple screens. Therefore, the input video signals are all processed by the video processors and distributed to each display unit, and each display screen can span the boundary of the display unit.

LED display adopts large-scale integrated circuits, which greatly improves the reliability and facilitates debugging and maintenance. All-weather work is fully adapted to various harsh outdoor environments, waterproof, moisture-proof, anti-corrosion, lightning protection, strong overall performance of earthquake resistance, strong luminous brightness, and the display content is clearly visible when the sun is directly on the surface of the screen within the visible distance, and cost-effective.

LCD splicing screen has low power consumption, light weight, and long life (normally work for 50,000 hours), Non-radiation, high definition, high brightness, high color saturation, high contrast, high resolution and a series of high-quality display advantages, which are highly praised and respected by the large-screen market, and are widely used in security, advertising media, Entertainment and culture, command centers, coal mines and many other industries. But its biggest shortcoming is that it cannot be seamlessly spliced, which is a bit of a pity for industry users with very fine display screen requirements.

At present, LCD splicing screens can be spliced ​​arbitrarily according to customer needs, up to 10X10 splicing. And secondly, LCD splicing screens use LED backlight to emit light, with a life span of up to 50,000 hours. The life of the backlight source is ten times that of the rear projection bulb compared to DLP and PDP. In addition to the high definition, high brightness, high color saturation, high contrast, and high resolution of LCD splicing, the life of the LCD is very long. Moreover, the power consumption is low, the heat generation is small, the failure rate is very low, the performance is stable to support 7×24 hours of uninterrupted work, and the subsequent maintenance cost is low.

DLP is the abbreviation of "Digital Light Procession" which means that this technology must first process the image signal digitally, and then project the image with light. It is based on DMD (Digital Micro-Mirror Device) to complete the visual digital information display technology. The cold light emitted by the UHP bulb passes through the condensing lens, homogenizes the light by Rod. And the processed light passes through a color wheel to divide the light into RGB three colors (or more colors such as RGBW), and then divided colors lights project on the DMD chip through lens, and finally reflected through the projection lens to form an image on the projection screen.

The DLP splicing screen is formed by splicing multiple rear projection display panels. Its main feature is the large screen size and small gaps. Although there will be gaps between the display panels, the physical splicing gaps between the panels can be within 0.5mm. However, the DLP splicing screen still has some fatal shortcomings. Because the DLP display uses multiple display panels to splice, the color and brightness will be uneven when the number of splicing screen is reached, and the power consumption is high, and the internal luminous bulb is continuously working after 6000-8000 hours, the brightness will decrease. In order to maintain a better display effect, the light bulb needs to be replaced, so the maintenance cost is very large. In addition, due to the large thickness of the DLP splicing panel, it is necessary to leave enough space on the back, which is also a problem for some environments with relatively small space.

However, with the continuous development of splicing technology, the current DLP splicing panel adopts LED light source, which not only has a major breakthrough in the service life, but also has revolutionary changes in color and power consumption.

PDP is the abbreviation of “Plasma Display Panel”, its working principle is very similar to fluorescent lamp. At present, there are three types of color PDP researched and developed: single substrate type (also known as surface discharge type) AC PDP, double substrate type (also known as counter discharge type) Formula) AC PDP and pulse storage DC PDP. From the perspective of technical principles, since the luminous plasma tubes in the PDP screen are evenly distributed in the plane, the center and the edges of the displayed image are exactly the same without distortion, and a pure plane in the true sense is realized. Since there is no electron beam movement during the display process, no electromagnetic field is needed, so the external electromagnetic field will not interfere with it, and it has good environmental adaptability.

Since the PDP does not require a background light source for light emission, there is no LCD display viewing angle and brightness uniformity problem, and higher brightness and contrast ratio are achieved. The design of the three primary colors sharing the same plasma tube also avoids focusing and convergence problems and can achieve very clear images. Compared with LCD display technology, the larger the screen of the PDP, the higher the depth and fidelity of the image. In addition to the advantages of brightness, contrast, and viewing angle, PDP technology also avoids the response time problems in LCD technology, and these characteristics are the most important factors in dynamic video display. PDP monitors have no scan line scanning, which is completely pixel-to-pixel, so the image is clear and stable without flicker, and will not cause eye fatigue. PDP is also free of X-ray radiation. Because of these two characteristics, PDP can be called a truly green display product.

However, PDP screen products have large pixel gaps, lower reliability performance than other products, higher power consumption, and congenital shortcomings of life. After 5000-7000 hours of use, the screen brightness will decay by half, and it is difficult to operate at an altitude of 2500 meters or more. Its most fatal weakness is that it is easy to burn when displaying computer images or static images for a long time (the so-called burning phenomenon refers to the change of plasma inside the screen when the plasma TV is in a static state for a long time, causing it to fail to work normally. It appears that there will be residual image of the image at a specific position on the screen, and it cannot be removed regardless of changing any source).

LCD splice screen with the functions of high picture-reduction , high brightness display and automatic shadow elimination, greatly improve its visual performance. To adopt the latest 3D digital decoding, image noise reduction and digital image correction technology. LCD offers you the best visual enjoyment.

LCD splicing screen can be used as a display alone, but also can be spliced into a large screen use. According to the different use requirements, to achieve variable large can also be changed to small hundred big screen function: single screen split display, single screen alone display, any combination of display, full-screen LCD splicing, double splicing LCD screen splicing, vertical screen display, image border optional compensation or masking, support digital signal roaming, scaling stretch, cross-screen display, a variety of display pre-programmed settings and operation, full HD signal real-time processing.

LCD splicing high brightness, high reliability, ultra-narrow edge design, uniform brightness, stable image without flicker, as well as having a longer service life of the LCD splicing screen, etc.

LCD splicing screen is a single independent and complete display unit, ready to hang, installation is as simple as building blocks, single or multiple LCD splicing screen use and installation are very simple. LCD splicing around the edge of only 0.88mm width, the surface with tempered glass protection layer, built-in intelligent temperature control alarm circuit and the unique “fast dissipation” cooling system.

LCD splicing screen has everything, not only adapt to digital signal input, the support of analog signal is also very unique, in addition to the LCD splicing signal interface, the use of DID LCD splicing technology to achieve the analog signal and digital signal can be accessed at the same time, the most recent one LCD splicing technology can also achieve the naked eye 3D intelligent effect. LCD splicing series of products using unique and the world’s most cutting-edge digital processing technology, allowing users to truly experience the full HD large screen effect.

1.7mm Narrow Bezel  Full High Definition FHD Mutiple-Combinations Rotatable Wall Mount Stand. Splicing display is more and more applied to commercial display, ultra-narrow seams bring perfect picture, display picture is clear and complete after splicing, wide viewing angle, high brightness, no burns, dynamic and extremely eye-catching , widely used in advertising, image display. It can be applied to Shopping malls, jewelry stores, museums, memorials, planning halls, science museums, etc.

According to different needs, LCD splicing can achieve the following functions: single screen splitting, the single-screen display alone, any combination of display, full-screen LCD splicing, double splicing LCD splicing screen, vertical screen display, optional compensation or masking of the image frame, support for digital signal roaming, zooming and stretching, cross-screen display, setting and running of various display profiles, real-time processing of full HD signal.

The LCD splicing can be used as a monitor alone, but also can be spliced into a large screen. According to different requirements, it can achieve the following functions: single screen splitting, the single-screen display alone, any combination of display, full-screen LCD splicing, double splicing LCD splicing, vertical screen display, optional compensation or masking of the image frame, support for digital signal roaming, scaling and stretching, cross-screen display, setting and operation of various display profiles, real-time processing of full HD signals. Real-time processing. The LCD splicing is a complete finished product, ready to use, as simple as building blocks, single or multiple LCD splicing is very simple to use and install. The LCD splicing is only 6.7mm wide around the edge, with a tempered glass protective layer, built-in intelligent temperature control alarm circuit, and the unique "fast dissipation" cooling system. In addition, the LCD splicing technology enables analog signal and digital signal to access at the same time. LCD splicing series products use the unique and the world"s most advanced digital processing technology so that users can truly experience the full HD large screen effect.

LCD splicing screen resolution is an important indicator of the display image format. Usually, we refer to the resolution refers to the physical resolution of the LCD screen, that is, the screen shows the number of points, is the horizontal and vertical pixel value, this value determines the clarity of the LCD screen.

By 2013, the mainstream resolution of LCD splicing screen products is 1366 × 768 and 1920 × 1080 two kinds, in line with what is usually said 16:9 widescreen ratio, 1366 × 768 is to achieve the minimum resolution limit of national HDTV standards. The future of high-definition television signals, there are three main formats, respectively, 720p, 1080i, and 1080p, the current popular Blu-ray BD and HD DVD also use these three formats.

Some businesses like to do above the concept of "resolution", some of the physical resolutions is only 1366 × 768 small size screen LCD screen flaunted as the highest supported resolution of 1920 × 1080, where there is actually a trap. Consumers are misguided in this "physical" and "highest support" two words above, the LCD screen can actually show how wide the screen, how high the pixels, lies entirely in its physical resolution only. A flaunting the highest support for 1920 × 1080 resolution TV in fact only shows that the product is to support the 1920 × 1080 signal input format, in addition to the panel characteristics, but also and TV drive decoding technology, but in fact, if the physical resolution of the panel is only 1366 × 768, then the panel in the display of 1920 × 1080 signal screen. This is not a one-to-one correspondence of the point-to-point display, but through the transformation of the image of the 1920 × 1080 signal into a 1366 × 768 format in line with the panel output is presented in front of the audience, and this conversion process will be accompanied by the compression and loss of screen effects, the user sees is not the quality of the original 1920 × 1080 screen.

In addition, it should be noted that the resolution and screen aspect ratio is actually not equal. In general, the horizontal and vertical dot pitch of the screen pixels is the same, that is to say, the pixels are square, so the resolution parameter ratio can be seen as the screen aspect ratio, for example, the resolution of a 1366×768 panel screen ratio is 16:9. For example, there is no contradiction between a product with a resolution of 1024×1024 and a product with a screen ratio of 16:9, 1024×1024 does not mean that the screen of the product is square.

The LCD splicing is a specialized terminal display device designed for engineering applications. It is based on FPGA array and parallel high-speed graphics processing technology, realizing unified processing of multiple high-speed video signals, replacing card-type splicing controller fundamentally, and solving the problem of a limited number of VGA signal input. It will be the most excellent high-definition, high-brightness, and high color gamut liquid crystal display technology, embedded hardware splicing technology, multi-screen image processing technology, signal switching technology, etc. into one, forming a high brightness, high definition, low power consumption, high life, advanced liquid crystal splicing curtain wall display system. Liquid crystal splicing curtain wall is a new kind of large-screen splicing method, which can be infinitely spliced. Flat-panel splicing display technology will be the mainstream application technology of the next generation of splicing display system. Liquid crystal display technology has developed over the years, has occupied an important position in the field of flat panel mosaic display. 　The advantages of the splicing curtain wall, such as ultra-light, ultra-thin, long life, low maintenance cost, low power consumption, no radiation, high-definition, stand out, and attract attention. 　The LCD mosaic curtain wall, with the LCD screen as the basic display unit, integrates the latest LCD display technology and pure hardware high-speed real-time splicing control technology, all input signals can be freely displayed in the window of the display wall, and fully supports cross-screen, roaming, picture-in-picture, superimposition, zoom, and other high-end display functions. The controller is tailor-made for the display, dedicated to the machine, and can maximize the performance of the display unit. 　The LCD mosaic wall provides clear images, flexible and diverse combinations, rich display content, giving users maximum freedom to design and provide shocking display results.　The LCD splicing wall is widely used in video surveillance, telecommunications, public utilities, process processing, traffic control, security monitoring, national defense, stage entertainment, TV studio, stocks, large exhibition, shopping malls, banks, office halls, company welcome screen, stores, scheduling command, etc. The practicality of the LCD splicing wall is very important. The practicality of LCD splicing curtain wall has a large combination of space: can use small screen splicing, can also use large screen splicing; can be a single screen splicing or a pair of M × N whole screen splicing; can also be a combination of large and small screen splicing. According to the customer on the LCD splicing curtain wall system proposed system scale and application requirements, according to the use of the system environment, choose the right product and splicing mode, design a specific implementation plan to meet the application requirements of the system.

According to the user"s requirements for the input signal, choose different video processing system, VGA, composite video, S-VIDEO, YPBPR/YCBCR, or DVI signal input, to meet different occasions, different signal input requirements. Through the control software, it can realize various signal switching, splicing into a full-screen display, any combination of display, image stretching display, image roaming display, image superimposed display, etc.　The LCD splicing curtain wall can be customized to meet the different needs of customers, providing different implementation plans and technical support.

The preliminary survey of the LCD splicing screen project largely determines the length of the project cycle, cost control and the presentation of the final effect, so special attention must be paid.

The weight of the entire LCD screen splicing system is very heavy, especially for rear projection splicing. If the floor where the equipment is installed is tiled, you must first confirm whether the wall can bear this weight. It is suggested that the entire installation is fixed to anti-static floor. It is also important to ensure the ground will not be deformed by long-term weight.

When wiring the large LCD screen splicing system, the power cord and signal line should be separated to avoid unnecessary interference to the signal; in addition, the cables specifications like length, number of connectors and name of signal line should be calculated according to the specifications of the splicing screen, the location of the cabinet, the location of the signal source, etc. It is also necessary to confirm with the customer whether the pipeline channels available meet the actual needs of the project. This will ensure the smoothness for the follow-up work.

For brightness of LCD splicing products is relatively limited, a strong light environment will have a certain impact on the picture effect of the solution. Theoriotically, it is required to leave a dark area within 4 meters in front of the solution. It is best not to install fluorescent tubes but a line of built-in downlight can. The light from the built-in downlight should not directly shine on the screen. A separate switch shall be set for the downlight. In addition, the installation of the line of built-in downlight should be parallel to the video wall. Try to ensure that there is enough lighting in the work area while to ensure the light will give few impact on the video wall.

Considering the convenience of installation and maintenance of the LCD splicing screen, the frame edging must be a detachable edging. The inner edge of the outer frame is left with a gap of about 25mm on each side of the splicing wall (upper, lower, left, and right sides). For large splicing walls, the margin should be appropriately increased according to the number of columns. In addition, in order to enter the cabinet for maintenance later, the maintenance channel is in principle not less than 1.2m wide. The detachable side strips should preferably be pressed by 3-5mm from the edge of the screen. After the cabinet and the screen are fully installed in place, the detachable side strips are finally fixed.

In the maintenance passage, air conditioners must be installed or vents must be reserved to ensure that the equipment is well ventilated. The location of the air outlet should be as far away as possible from the LCD splicing wall (about 1m). The wind from the air outlet cannot directly blow against the cabinet to avoid damage to the LCD splicing screen due to uneven heating and cooling.