Technogical Terms
17.Work temperature
The working temperature has a direct impact on the lifespan. Generally, the working temperature should below 40°C ~ 45°C. Any electronic component can be affected by operating at a higher temperature than the recommended temperature. Besides, the high-temperature environments may increase the electricity consumption therefore the costs.
There is an article which will tell you the specific methods about how to avoid overheating, please click how to maintain LED displays on hot days.
18.Power consumption
The electrical consumption of LED displays is determined by several factors including brightness, size and the number of LEDs.
There are several ways to control the LED display board’s power consumption:
1)You can set a time schedule to manage when the screen should switch off or switch on. Moreover, you can control the brightness level according to the different lighting conditions of different periods of the day.
2)Light sensor: the light sensors can measure the brightness of the environment, and the adjustment of the LED screen display can be fully automated.
19.Rear maintenance
The rear-maintenance screens have door-like openings to access the internal parts of the LED cabinet. It should be noted that if the screen is used outdoor, the cabinet should be designed to prevent water leakage.
20.Frontal maintenance
The screen has a frontal access system to access the internal parts, which is used widely for LED screens installed in places where on a wall or facade. If without frontal access, there will not be possible to access the interior parts of the display.
1)Frontal access systems with a “lock”
From the front we have openings where we can release the LED display modules by inserting a key. You can simply think the LED modules are connected to the LED cabinets utilizing a closing and opening system similar to a basic lock.
2)Frontal access systems with front screws
The LED modules are attached to the cabinets through screws and the system can be reliable especially for outdoor applications. However, the installation process can be more laborious.
In addition, each modular LED piece must have a locking mechanism. For this reason, larger LED modules are usually used in these cases to reduce its number. But on the contrary, if there is any problem on the LED screen module, it may be a bigger problem to replace.
21.Magnetic system
This is a new kind of front access maintenance method, and it is very easy and practical to operate. For example, if you want to remove the modules from the front of the screen, you only need to use a powerful magnet which will remove the magnet LED module from the front of the screen.
However, there is a little point you need to know, as when fastening the modules by magnets the system may move minimally, they have to be repositioned once the screen is installed.
22.LED cabinet
LED cabinet, or LED screen frames, are the modular units on which the LED screen is assembled. The cabinet can be easy to assemble then constitute the screen (most LED screens are large or even gigantic).
The LED display cabinets vary in size, building materials and can be customized depending on the specific requirements of the LED display screens.
1)Front maintenance cabinet: in this case, the modules are removed from the front of the screen, and this kind of cabinets is widely used for wall installation.
2)Rear maintenance cabinet: the cabinets will have doors on the backside of the screen. There should be enough space for the operator to open the cabinet and take out the modules.
23.LED screen components
There are several components for LED screens:
Cabinets: we have discussed the component before, there we don’t go into details.
Structural chassis: it is the frame that houses the other components of the cabinet. It can be manufactured in different materials according to specific conditions.
Power sources: it can transform and regulates the voltage of the electrical network to power the other electronic components.
Data card: receives the image data that each cabinet will issue and distributes them to all the cabinet’s modules.
Data circuit: the set of wiring used to connect the data cards with LED modules and to connect cabinets with each other.
Power circuit: the set of wiring used to connect the power supplies to the other electronic components of the cabinet and to interconnect all the cabinets with the electrical network.
Terms of Control System
24.LED Sending card
The sending card is a typical component in synchronous LED control systems. This card is responsible for converting the input video signal (HDMI / DVI) to a format that the screen can interpret.
Linsn TS921 LED Sending Card
25.LED Receiving card
LED Receiving cards distribute the image and video information they receive and send it to each of the LEDs and pixels that make up the screen, to create a complete image or video. All this process is done in real time, so it is a process that requires fast transfers and coordination between all the components of the screen and the sending card.
Linsn RV908M32 LED Receiving Card
26.Player
The LED players can reproduce and store the video and image contents for the LED screens. The player can be asynchronous or synchronous.
The functions can listed but not limited as below:
1)Upload videos and images;
2)Schedule videos by calendar;
3)Screen brightness scheduling.
27.LED video processor
The LED scaling video processor for LED screens is a device that converts an input video signal (DVB-T, Camcorders, Computer, etc.) to the resolution of the giant LED screen. This can ensure the videos and images fill the entire image and are not deformed or have black bands on the sides.
The functions can be listed but not limited as:
1)Support multiple video inputs
2)Division of screens in different video areas
3)Chroma live functions
4)Color calibration and brightness calibration functions
5)Support image rotation
6)Support configuration of technical parameters of the LED screen
7)Remote management of the video processor
28.Video processor interfaces
When you choosing the LED video processor, you will meet different types of interface types. Generally speaking, there are various types including DVI, VGA, HDMI, DP, etc. For detailed introduction about common interfaces, you can refer to LED Video Processor Interfaces Introduction.
29.Control PC
It is a PC that manages the LED billboard and is directly linked with the LED display. It can be installed internally (embedded PC) or out of the display.
30.Remote PC
It is the another PC which linked to the control PC. This remote PC communicates directly with the control PC and manage the settings to be transmitted to the display. It is usually used in scenarios where the LED billboard doesn’t allow access to the Control PC (for example a large height installation).