In the modern digital age, large screens have become standard equipment in all kinds of venues, whether indoors or outdoors, in shopping malls or stadiums. However, behind these dazzling screens lies a sophisticated control system. In this system, the transmitting and receiving cards are considered indispensable core devices, responsible for signal transmission and reception, ensuring the normal operation of the large screen. Let's take a look at the relationship between these two key devices.
Transmitting Card: Also known as the control card, the transmitting card is the signal transmission device for the advertising large screen. Its main function is to convert input signals (such as signals from computers and cameras) into signals suitable for display on the large screen, and then transmit these signals to the receiving card through transmission lines. The transmitting card typically has a built-in image processor and color management system, which can process and adjust the input signals to ensure high-fidelity and stability of image quality.
For digital large screens, the transmitting card also has an important function: segmenting and splicing image signals. Large screens are usually composed of multiple modules, each of which needs to receive corresponding signals for display. The transmitting card segments the input image signal and transmits it to the receiving cards of each module in a splicing manner, thus achieving complete image splicing and display.
Receiver Card: Also known as a decoding card, the receiver card is the signal receiving device for the large advertising screen. Its main function is to receive signals from the transmitting card and decode them into images that can be displayed on the large screen. The receiver card typically has a built-in decoder and driver, which can decode and drive the received signals, thereby controlling the brightness and color adjustment of each pixel on the large screen.
A large screen usually consists of dozens or even hundreds of modules, each equipped with a receiver card. After receiving the signal from the transmitting card, the receiver card begins to decode the signal and adjust its brightness and color. By controlling the brightness and color of each module, the large screen can present a clear and balanced image. In addition, the receiver card is also responsible for monitoring and controlling the status of the large screen, ensuring its normal operation.
Relationship between Transmitting and Receiving Cards: As two core devices in the large screen control system, the transmitting and receiving cards are closely linked. The transmitting card converts the input signal into a signal suitable for large-screen display and transmits it to the receiving card. The receiving card receives and decodes these signals, controlling the brightness and color of the large screen. Working together, they ensure the quality and stability of the large screen display.
Furthermore, the transmitting and receiving cards are connected via a transmission line. The quality and stability of the transmission line directly affect the signal transmission effect; therefore, special attention must be paid when selecting and installing the transmission line. Only when the signal is stably transmitted from the transmitting card to the receiving card can the normal operation of the large screen be guaranteed.
In short, the transmitting and receiving cards are indispensable core devices for advertising large screens, undertaking the important tasks of signal transmission and reception. Through the coordinated operation of the transmitting and receiving cards, the large screen can present high-fidelity and stable image effects. As a representative of the modern digital age, the widespread application and continuous innovation of large screens cannot be separated from the support and development of transmitting and receiving cards.
