LED electronic large screen has become the favorite of advertisers because it can play dynamic video, pictures and text, fine picture quality, long viewing distance, wide range of advertising, high arrival rate, wide perspective and large area seamless splicing. Now we can see the figure of LED display everywhere. In order to meet the different needs of different users, LED display manufacturers develop different performance products. The following is a brief introduction by the mini photoelectric LED display manufacturers about the comparison of LED electronic large screen lamp driver in one and lamp driver separation.
Comparison of LED electronic large screen lamp driver integration and lamp driver separation
The LED electronic large screen is made up of a piece of unit module or unit box seamlessly, and the module is made up of LED lamp beads. LED, also known as light-emitting diode, is a kind of display mode controlled by semiconductor light-emitting diode. It is made of gallium, arsenic, phosphorus, nitrogen and indium compounds. When electrons and holes are combined, they can emit visible light, so they can be used to make light-emitting diodes.
It can be used as indicator light in circuit and instrument, or it can form text and digital display. Gallium phosphide diode emits red light, gallium phosphide diode emits green light, silicon carbide diode emits yellow light, and InGaN diode emits blue light. LED display screen is generally used to display text, image, video, video signal and other information. The following is the comparison between drive in one and lamp drive separation.
LED display circuit board is composed of lamp board and driver board. In the market, LED display screen with integrated lamp driver is commonly used, that is, LED lamp and driver IC are all packaged on a PCB. Usually, the lamp bead is on the PCB board, and the driver IC is packaged under the PCB board. The signal connection between modules is carried out by means of row pin and row bus.
On the contrary, led beads are packaged on a separate PCB, while the driver IC is packaged on another PCB. The driving IC PCB is about half smaller than the lamp bead PCB, and the signal connection between the two PCBs is also in the form of row pin and row bus.
The two are compared with the integrated LED driver and electronic screen lamp.
1. As far as heat dissipation is concerned, led beads and IC will generate heat when they are working, while the driver is separated. Because the beads and driver IC are packaged on two different PCB boards, the heat dissipation speed is faster.
2. In terms of cost, only one PCB board is used for lamp driver integration, and two PCB boards are used for lamp driver separation, so the cost of lamp driver integration is lower.
3. As far as maintenance is concerned, since the lamp driver is separated from the IC, they can be replaced with each other for detection, and it is easier to replace the lamp beads.
4. In terms of production efficiency, because the lamp driver is integrated, the lamp bead and the driver IC are packaged on the same PCB, so the packaging speed is faster and the production efficiency is higher.
5. Assembly speed, because the lamp driver of a PCB board has only one power plug, two cable outlets, so just connect the power socket and cable outlet with another PCB board, assembly speed is faster. The power supply module and the other two lamp drivers can be connected by separate power supply wires.
Therefore, in the market, the LED display screen with lamp beads in one is commonly used, while the lamp driver separation is less used. In general, the module with separate lamp driver is used in the following three cases.
In a word, due to the small number of chips, low brightness and low heat generation of LED indoor display screen, the LED electronic large screen with lamp driving is used. According to the installation environment requirements, LED outdoor display can choose whether to use the display with separate light and driver. Generally speaking, the LED outdoor display screen is the light driven screen. The following is a brief introduction of the mini photoelectric LED display manufacturers, and the comparison between LED electronic large screen lamp driver in one and lamp driver separation. Customers can choose the screen according to their actual needs
