Ultrathin double-sided digital poster with maintenance door

Abstract

The invention discloses an ultrathin double-sided digital poster with a maintenance door. The ultrathin double-sided digital poster comprises a first frame, a second frame, a control system, a first display screen, a first backlight module, a middle back plate, a second backlight module and a second display screen, wherein the first display screen, the first backlight module, the middle back plate, the second backlight module and the second display screen are sequentially arranged between the first frame and the second frame; a first display window matched with the first display screen is arranged on the first frame, a second display window matched with the second display screen is arranged on the second frame, the control system is installed on the inner side of the second frame, a detachable or rotatable maintenance door is arranged on the first frame, the maintenance door is arranged opposite to the control system, the maintenance door has a closed state and an open state; and whenthe maintenance door is in an open state, the control system can be maintained by opening a gap formed by opening the maintenance door. The double-sided digital poster in the invention has the advantages of being small in thickness, attractive in appearance, light in weight and convenient to install, the control module is integrally arranged, and the maintenance door is arranged at the relative position of the control module, thereby facilitating later maintenance.

Description

[0001] Cross References to Related Applications [0002] This application claims the priority of the patent application No. 2018113120635 filed on November 6, 2018. technical field [0003] The invention relates to the field of digital advertising machines, in particular to an ultra-thin double-sided digital poster with a maintenance door. Background technique [0004] The value of window advertisements is being paid more and more attention at present, and now the common practice is to hang print poster advertisements in the windows, but with the development of Internet and Internet of Things technology, the disadvantages of print poster advertisements are becoming more and more obvious: Billboards lack bright spots, and content replacement is inconvenient and wastes resources. Therefore, it is the general trend to use digital billboards instead of flat billboards for window advertisements. [0005] Now there is a double-sided digital advertising machine, which includes tw...

AI Technical Summary

Problems solved by technology

However, this product has a low degree of integration, resulting in a large thickness of the advertising machine, poor appearance, heavy weight, inconvenient installation and potential safety hazards, and it is inconvenient for later maintenance.

[0006] In the prior art, even if the double-sided display screen and the control equipment are made into an integrated machine, the distribution of its control modules is as follows: figure 1 As shown, its working circuit principle is as follows figure 2 As shown, that is, the first power supply board 87 has two outputs, one of which supplies power to the first display screen through the first system board 85 and the first control board 83, and the other through the second system board 86 and the second control board 84 for power supply. The second display screen supplies power, and the second power supply board 88 also has two outputs, one of which supplies power to the light bar of the first backlight module after passing through the first current regulator 81, and the other passes through the second current regulator 82 to supply power to the second backlight module. The light bar of the module is powered; image 3 As shown, the above all-in-one machine only places the external control equipment inside the casing of the double-sided display screen. In addition to the front frame and the rear frame, there is also a middle frame 89. Since the control modules are distributed and arranged at the bottom of the backlight module, therefore Increased the thickness and weight of the digital poster all-in-one machine, a highly integrated and easy-to-maintain double-sided digital poster is lacking in the prior art

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