1. Technical background
With the development of the LED display industry, the varieties and specifications of display screens are constantly diversified and intelligent, and the application fields are constantly expanding. The visibility in the daily field is getting higher and higher. As a new generation of display media, it has already entered the mainstream display market. It has become an indispensable display window in the image promotion of enterprises and institutions and the information display field of public places. In almost all social service fields such as stations, airports, schools, hospitals, securities, shopping malls, gymnasiums, stages, dispatching, etc., LED display screens can be seen everywhere.
With the advancement and in-depth application of LED display technology, especially the wide application of small-pitch LED display screens in various command systems, monitoring systems, and commercial display fields, it has brought a lot of troubles: splicing cannot be perfect, forming splicing bright lines or dark lines; the screen pixels reach billions or even billions of scales. Any existing large-scale LED lamp packaging company cannot provide such a large number of single batches of lamps, resulting in color difference or mosaic phenomenon in the screen unit due to different lamp parameters.
The traditional approach is to splice the screen at the application site, and then use the point-by-point correction system to calibrate the color and brightness on site. Many sites have poor correction effects due to site reasons and insufficient distance; or the arc or special-shaped splicing on site leads to poor correction effects on site, or the correction system itself collects data (CCD image sensor resolution) is not precise enough; or because the correction equipment is the collection point and the display screen is flat, the resulting angle difference leads to color difference between the screen boundary and the center of the screen, etc., making correction difficult or taking several days to correct, greatly affecting the efficiency of installation and increasing the trouble of users.
With the development of technology, an LED smart display screen with communication function that can realize automatic correction has emerged, which can solve the above problems well. By realizing the communication control module installed on the LED display screen and the functional software of the product itself, it is realized in its installation and debugging method that the identification number of each module is automatically retrieved to download the driver and related information of the module, so that each cabinet can be correctly lit; by identifying the position of each cabinet, the screen can be correctly lit.
2. Remote automatic correction
With the development of technology, a cloud-based LED smart display with communication function has emerged, which can solve the above problems well. By implementing the communication control module installed on the LED display, it is realized that in its installation and debugging method, the identification number of each module is automatically retrieved to download the driver and related information of the module, so that each box can be correctly lit; by identifying the position of each box, the screen can be correctly lit.
In the module information collection and storage method, by correctly matching the module information with the module identification number, the module information can be stored in the cloud server and correctly called during the installation and debugging process, thus avoiding errors caused by manual input and making the installation and debugging process more convenient and quick. With the rapid development of communication technology, this LED smart display product has been quickly recognized and welcomed by the market, and its bright development prospects can be foreseen.
This automatic correction system consists of the following parts: factory correction data storage server, cloud server, LED display control system, mobile device, etc.
Each LED module adopts the method of exit correction and storing the correction data on the server. The system automatically identifies the display module parameters on the screen application side, and requests the correction data from the server through the cloud control according to the parameters. The server sends the corresponding data to the requesting side according to the request. After the screen control side receives the correction data, it directly downloads it to the control system to complete the correction, and the screen displays normally. It solves the time-consuming and labor-intensive on-site correction and the problem of inaccurate correction.
When the user on the application side uses these modules or display units, they assemble them and connect them to the control system normally. The operation control system automatically reads the module number information on the screen and uploads the module number information to the cloud through the network (or mobile terminal) to request the correction data of the corresponding module; after the cloud receives the request data and passes the security authentication, the relevant correction data is collected from the server in the order of the request data, and transmitted to the mobile terminal or control terminal computer through the cloud, and saved. After receiving, the data is sent to the display control system and stored in the control card to realize the data correction of the display screen.
3. Practical significance
Although there are no mandatory requirements for automatic calibration of LED smart display screens in my country, we should promote the development of the entire industry through correct guidance of enterprises, especially by leveraging the influence and high-quality product performance of leading enterprises in the industry, so that some high-tech energy-saving products cannot highlight their technical advantages. We can further prove the superior product performance of our products to consumers by obtaining valuable certifications, and gain an advantage in the fierce industry competition.