In the display field, the status of LCD splicing screens can be said to be one of the best, and it is a star-rated product among large-screen display products; it is composed of multiple LCD units, and the spacing between each screen is very small, which hardly affects the display. Effect: As the technology becomes more and more mature, this type of splicing large screen can already achieve a minimum of 0.88mm.

The reasons why LCD splicing screens are favored by users.

1. Innovation

The display principle of the large LCD splicing screen is to divide the video and picture signals into each display unit through the splicing screen processing software. it is different from the display method we usually touch, which can make the transmitted picture more stable.

2. Simple operation

No complicated steps are required. In this era of efficiency, people like fragmented reading and smart devices to bring convenience to life. So the easy-to-operate splicing large screen has naturally become people’s first choice.

3. Long life

iSEMC's LCD splicing screen has a long life span, which is longer than DLP splicing, plasma large screens and other products. Therefore, relatively speaking, the cost-effectiveness is definitely higher, which is beyond doubt.

4. Support 7*24 hours of uninterrupted work

Many display products mostly have a problem, that is, they will become particularly fragile and easily damaged after a long time of operation, but the LCD splicing screen is different, it can run without interruption and damage, so there is no need to worry about the LCD splicing screen running for too long Bringing all kinds of problems, especially in some monitoring command and dispatch centers, LCD splicing screens can better exert their own characteristics.

5. HD display

The display effect of the iSEMC’s LCD splicing screen is excellent. Whether in terms of brightness, clarity, contrast, etc.

LCD splicing screens have become the mainstream of large indoor terminal display screens, and are used in entertainment, government, transportation, energy, finance, radio and television and many other fields, and the processing capacities of iSEMC’s video wall system and excellent LCD splicing screen determine its rapid development.

Video Wall Image Scaling Why it's important

With isemc video walls, source content resolution is typically substantially smaller than the combined pixel output resolution offered by the displays in the video wall. The vast majority of existing source content is 1080p with most new content being created now at 4k.

Video walls typically can offer 6k or even 16k pixel output resolution, so it is not uncommon to scale up content four or even sixteen times its original pixel count for output on the video wall. 

Scaling on a 2x2 video wall:

With four 1080p displays combined into a 2x2 video wall, you actually have the capacity to display 4k resolution. Hence, the source content needs to be upscaled roughly four times to 4K to output to the 2x2 wall (four displays). This scales up the 1080p source file stretching it across four displays. Though the algorithms are typically more complex, in the simplest approach (linear scaling), it takes one pixel and expands it into four.

Server Scaling

Scaling is common in video walls and there are many different scaling algorithms that vary in terms of perceived visual quality basically, a viewer's ability to see pixilation—and CPU demands. One way to achieve scaling is to intelligently utilize the built-in scalers within the display (these hardware-based scalers add no performance load to the server and generally create very good image quality).

One way to do this is by sending a 720p source to a 1080p display. In a network video wall, this “display scaling” can often create quite good results as it places less demand on the network and host CPU.  Additionally, the built-in scalers in most displays provide more than decent visual scaling quality.

Performance-optimized Scaling

Another approach is to use a performance-optimized scaling algorithm on the CPU. Useful offers an optimized mix of server scaling and display scaling” to balance performance available bandwidth/CPU with visual results.

This enables us to use the best scaling algorithms, and scale on the server side up to full output resolution without bogging down the CPU. Useful automatically optimizes the scaling algorithms based on a user's setup and content, but also provides the option to manually specify if a user wants to substantially improve visual image quality on heavily scaled video walls.

isemc provides professional video wall controllers

iSEMC Video Wall Controller is the core of the CCTV monitoring system. It receives all the video signals and displays them on the display, while recording all the video signals. The CCTV monitoring system refers to the closed-circuit television monitoring system, which is an important part of the security technical defense system.

It mainly uses equipment to monitor and control many important places or places that cannot be inspected in real time by personnel. And this system transmit the scenes of all places to one or more monitoring rooms for display, in order to record the situation.

The front end is generally composed various cameras and lens, a pan-tilt, etc. which are used to obtain images of the monitored area.

. The video cable or WiFi transmits the video signal output from the camera to the monitoring point equipment, the controller. It plays the role of information decoding and encoding and can be compatible with a variety of front-end equipment to achieve control and communication functions. iSEMC provides a software can control the movement and adjustment of camera to rotate up and down, left and right, and view the recorded signals. The software can also send out an alarm signal. send the corresponding alarm information through the signal transmission medium, and show out an alarm light and sound signal on the screen to remind the security personnel.

Its terminals generally include monitors, various control equipment, and recording equipment, etc., for display and recording, video processing, output control signals, and receive signals from the front end. The display device can display the signal processed by the controller, and can display the image through the computer monitor, screen, or professional monitor. The video wall controller iSEMC supports multi-screen splicing, and displays camera information in multiple regions.

iSEMC video wall controller is very suitable for surveillance and security scene,Check out our latest CCTV + Multimedia Information Release System video wall controller solution

LCD, LED and DLP are three commonly used in current display technology. Different display technology will lead to different display effect. They have own advantages and disadvantages, depends on your using needs, you must select the display technology more correspondent.

LCD
At present, the most cost-effective screen equipment in command center, which is also the mainstream product.
Advantages:

- High resolution,1920*1080 can be achieved on a single screen.

- Moderate brightness and contrast, bright colors.

- No dazzling to watch for a long time.

- Stability and durability of screen. It can work on continuously for a whole day.

- Low maintenance cost.

Disadvantages:

- There are joint lines between the screens, so that the image will have a division. It could be a visual impact. The currently available of the patchwork panel is 0.88mm.

LED

Advantages:

- No matter how to splice the screens there are no display barriers between them.

- Adjustable brightness, flexible splicing.

Disadvantages:

- High unit price, high overall cost.

- Over time there will be a large number of lamp beads damaged, no bright or only display monochrome. In this situation,

- Low resolution.

DLP

DLP is a rear-projection technology that uses a chip to produce images by refracting a screen.

Advantages:

- The highest resolution can reach 1080 like the LCD screen. There are two size of screen 16:9 and 4:3.

- The patchwork is extremely small, only 0.2mm,which is almost the same as seamless..

Disadvantages:

- the screen is expensive, maintenance costs such as replacement of light bulbs are high.

- Low brightness, the screen reflects light when the light hits it. At present, more users begin to shift from DLP to LCD with small patchwork.

In the display system of command center, you need to consider encoding and decoding ability of monitoring equipment, and the command center is used all year round, which requires high stability of screen. iSEMC video wall controller supplier provides display products, solutions and technical service to satisfy your demands from all sides on display system.