Display screen power supply framework and display screen

Abstract

The utility model provides a display screen power supply framework and a display screen, the display screen power supply framework is applied to the display screen, the display screen comprises a plurality of display units, the display screen power supply framework comprises a plurality of ACDC modules, the plurality of ACDC modules are used for supplying power to the plurality of display units, the direct current ends of the adjacent ACDC modules are connected together to form a power supply network, and compared with a single power supply structure, the power supply network is connected with the power supply network. A plurality of interconnected power supplies in the power supply network can mutually play a backup role, even if the power supplies in the power supply network are damaged, the display screen formed by the power supplies can work under a certain condition as long as all the power supplies are not damaged, that is, the product reliability is improved to a certain extent, and compared with a single power supply, the interconnected power supplies are more convenient to use. The power range of the power supply supplied to the display unit is wider, namely, the brightness dynamic range of the display unit is improved, and then the user experience is improved.

Description

Technical Field

[0001] This application belongs to the field of display technology, and particularly relates to a power supply architecture for a display screen and a display screen. Background Art

[0002] With the development of display technology, current Light Emitting Diode (LED) display screens are applied to various fields due to their advantages such as low cost, low power consumption, high visibility, and free assembly. At the same time, with the popularization of High Dynamic Range Imaging (HDR) content and the increasing demand of users for realistic picture quality, HDR-related technologies have developed greatly from video content, to playback devices, to video processing devices, and to the display side, and users use the HDR function more and more.

[0003] However, in the current LED display field, the structure of the basic display unit (box) for building an LED display screen is still the same as before, using independent power supplies, and the DC ends independently output current to their respective display panels. The LED display large screen built with this kind of box structure combined with HDR display technology cannot achieve the best display effect. Summary of the Utility Model

[0004] The purpose of the embodiments of this application is to provide a power supply architecture for a display screen and a display screen, aiming to solve the problem that the best display effect cannot be achieved after a simple construction of a related LED display screen.

[0005] The first aspect of the embodiments of this application proposes a power supply architecture for a display screen, which is applied to a display screen. The display screen includes a plurality of display units. The power supply architecture for the display screen includes:

[0006] A plurality of ACDC modules, and the plurality of ACDC modules are used to supply power to the plurality of display units;

[0007] The DC ends of adjacent ACDC modules are commonly connected.

[0008] In some embodiments, the DC ends of the plurality of ACDC modules are respectively connected to the power supply ends of the plurality of display units in a one-to-one correspondence.

[0009] In some embodiments, the power supply architecture for the display screen includes: a plurality of horizontal DC power supply lines and a plurality of vertical DC power supply lines;

[0010] The plurality of horizontal DC power supply lines and the plurality of vertical DC power supply lines are cross-connected;

[0011] The DC end of each ACDC module is connected to the corresponding horizontal DC power supply line and vertical DC power supply line.

[0012] In some embodiments, the plurality of ACDC modules are arranged in an array.

[0013] In some embodiments, the DC terminals of each row of the ACDC modules are connected to a corresponding row of horizontal DC power supply lines.

[0014] In some embodiments, the DC terminals of each column of the ACDC modules are connected to a corresponding column of vertical DC power supply lines.

[0015] In some embodiments, the sum of the powers of the plurality of display units is equal to the sum of the output powers of the plurality of ACDC modules.

[0016] In some embodiments, the maximum power of each display unit is less than or equal to the sum of the output powers of the plurality of ACDC modules.

[0017] A second aspect of the embodiments of the present application further provides a display screen, including: a plurality of display units; and a display screen power supply architecture as described in any one of the above.

[0018] In some embodiments, the plurality of display units are arranged in an array.

[0019] The beneficial effects of the embodiments of the present application compared with the prior art are as follows: The display screen power supply architecture is applied to a display screen, which includes a plurality of display units. Among them, the display screen power supply architecture includes a plurality of ACDC modules, and the plurality of ACDC modules are used to supply power to the plurality of display units. The DC terminals of adjacent ACDC modules are commonly connected. A power supply network is formed by commonly connecting the DC terminals of the plurality of ACDC modules. Compared with a single power supply structure, the power supplies in the multiple interconnections in the power supply network can backup each other. Even if a power supply in the power supply network is damaged, as long as not all of them are damaged, the formed display screen can still work under certain conditions, that is, the product reliability is improved to a certain extent. And the power supplies in the interconnections can supply a wider range of power to the display units compared with a single power supply, that is, the brightness dynamic range of the display units is improved, thereby enhancing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 Structural schematic of the display screen power supply architecture provided by the embodiments of the present application Figure 1 ;

[0022] Figure 2 Schematic structure of the display power supply architecture provided by the embodiments of the present application Figure 1 ;

[0023] Figure 3 Schematic structure of the display power supply architecture provided by the embodiments of the present application Figure 1 ;

[0024] Figure 4 Schematic structure of the display power supply architecture provided by the embodiments of the present application Figure 1 。 Detailed implementation manners

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer and more understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0026] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0027] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.

[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" means two or more, unless otherwise specifically defined.

[0029] Currently in the field of LED displays, the structure of the basic display unit (box) for building an LED display screen remains the same as before, using independent power supplies, and the DC ends independently output current to their respective display panels. However, when the LED display large screen built with this box structure is combined with HDR display technology, the best display effect cannot be achieved. At the same time, during the operation of the LED display screen, it is inevitable that the power supply of the display box is damaged due to some other factors, resulting in the entire screen not being able to be used normally, which affects the user experience.

[0030] To solve the above technical problems, an embodiment of the present application proposes a display screen power supply architecture, which is applied to a display screen. The display screen includes a plurality of display units. Refer to Figure 1 As shown, the display screen power supply architecture includes a plurality of ACDC modules 100, and the plurality of ACDC modules 100 are used to supply power to the plurality of display units 200; the DC terminals of adjacent ACDC modules 100 are commonly connected.

[0031] In this embodiment, by commonly connecting the DC terminals of the plurality of ACDC modules 100, after the display units 200 are spliced to form a display screen, the maximum brightness of a single display unit 200 can be selected according to user requirements. Each display unit 200 can correspond to a display area 300, and the power supply of the display units 200 in the display area 300 can be provided by the plurality of ACDC modules 100, so as to achieve the purpose of reusing other ACDC modules 100 to increase the power supply of a single display unit 200, so that a single or multiple display areas 300 can increase the dynamic display range according to user requirements. Moreover, even if one or more ACDC modules 100 are damaged, other ACDC modules 100 can also distribute current signals to the power supply terminals of the corresponding display units 200, playing a backup role, improving the working stability after the display units 200 are spliced, and enhancing the user experience.

[0032] In some embodiments, in combination with Figure 1 As shown, a plurality of ACDC modules 100 are correspondingly provided for the plurality of display units 200. The plurality of display units 200 can be spliced to form a display screen with a larger area. The brightness of the display area 300 of each display unit 200 can be determined by the output power of all the ACDC modules 100. By commonly connecting the DC terminals of the plurality of ACDC modules 100 in the display screen, all the display units 200 in the display screen can be powered by the plurality of ACDC modules 100 in the display screen together, so as to increase the power supply of each display unit 200 in the spliced display screen and avoid the dynamic display of the spliced display screen being limited by the power supply.

[0033] In this embodiment, the common connection of the DC terminals of the plurality of ACDC modules 100 can form a power network. Compared with a single power supply structure, the plurality of interconnected ACDC modules 100 in the power network can backup each other. Even if the ACDC modules 100 in the power network are damaged, as long as not all the ACDC modules 100 are damaged, the formed display screen can still work under certain conditions, that is, the product reliability is improved to a certain extent. And the interconnected ACDC modules 100 have a wider power supply range for the display unit 200 compared with a single power supply structure, that is, the brightness dynamic range of the display unit 200 is increased, and thus the user experience is enhanced.

[0034] In some embodiments, the display unit 200 may be an LED display panel, and multiple display units 200 can be spliced together to form an LED large screen.

[0035] In some embodiments, each display unit 200 may be an independent display panel. Multiple display panels can be directly spliced through a scan signal interface and a data signal interface to form a display screen with a larger area. However, the maximum brightness of each display panel lamp is determined by the power output of the power supply, the composition of the display unit 200, and the control method. The power output of the power supply determines the highest value of the brightness that the LED display unit can reach. Since the LED large screen is composed of multiple display units 200, based on the above splicing architecture, the maximum brightness value of a single LED display unit 200 is the same as the maximum brightness value of the LED large screen. In the embodiments of the present application, during the splicing process of multiple display units 200, the DC terminals of the ACDC modules 100 corresponding to each display unit 200 are commonly connected, so that multiple ACDC modules 100 can supply power to all display units 200 simultaneously. In this way, during the application of the LED large screen display, the local display units 200 can meet higher display brightness according to the requirements of the picture, which can greatly expand the application scenarios of the display screen. At the same time, it also avoids the problem that when a single high-power power supply supplies power to the LED large screen, due to the large power supply wiring, the voltage difference of the power supplies of each display unit 200 is large, resulting in display deviation of the display unit 200.

[0036] In some embodiments, the DC terminals of multiple ACDC modules 100 are respectively and correspondingly connected to the power supply terminals of multiple display units 200.

[0037] In this embodiment, each display unit 200 is provided with an ACDC module 100. The ACDC module 100 can be arranged in the form of a box on the back of the corresponding display unit 200, which can facilitate the splicing and installation of the display unit 200 and also reduce the probability of the spliced display screen malfunctioning.

[0038] Figure 2Schematic diagram of an ACDC module 100 provided by an embodiment of the present application. The ACDC module 100 includes a power supply box 120, an ACDC power supply 110, an AC input interface AC, a first DC output interface DC1, a second DC output interface DC2, a third DC output interface DC3, a fourth DC output interface DC4, and a fifth DC output interface DC5. The AC input interface AC can be used to access AC power. The ACDC power supply 110 can convert the input AC power into DC power and output it to the first DC output interface DC1, the second DC output interface DC2, the third DC output interface DC3, the fourth DC output interface DC4, and the fifth DC output interface DC5. The first DC output interface DC1, the second DC output interface DC2, the third DC output interface DC3, and the fourth DC output interface DC4 can be connected to the DC output interfaces of the corresponding ACDC modules 100 of other display units 200 when the display units 200 are spliced. The fifth DC output interface DC5 can supply power to the corresponding display unit 200.

[0039] In some embodiments, the first DC output interface DC1, the second DC output interface DC2, the third DC output interface DC3, the fourth DC output interface DC4, and the fifth DC output interface DC5 can be commonly connected, and the fifth DC output interface DC5 is connected to the power supply terminal of the corresponding display unit 200. The first DC output interface DC1, the second DC output interface DC2, the third DC output interface DC3, the fourth DC output interface DC4, and the fifth DC output interface DC5 are all provided on the power supply box 120.

[0040] In this embodiment, by paralleling the DC ports of the power supply box 120 to form a mesh interconnection structure, the brightness dynamic range of the LED large screen formed after splicing can be improved. Figure 3As shown, the DC output terminals of multiple power supply boxes 120 are connected in parallel. Then, the power supply range of a single display unit 200 is extended from the power range of a single ACDC module 100 to the sum of the power ranges of multiple ACDC modules 100. For example, if the maximum power of the original ACDC module 100 is 200W and the maximum brightness it can support for the display unit 200 is 2000nits, when the DC terminals of 5 ACDC modules 100 are connected in parallel, the maximum power that can be provided is 200W * 5 = 1000W. Without considering other factors, theoretically, the maximum brightness of the display unit 200 that can be supported is 2000 * 5 = 10000nits. At this time, the brightness dynamic range of the display screen formed by splicing multiple display units 200 is extended from 0 - 2000nits to 0 - 10000nits, greatly enhancing the user experience of the display screen. On the other hand, by connecting the DC terminals of the power supply boxes 120 in parallel to form a mesh structure, even if one or more power supply boxes 120 in the middle are damaged, the other power supply boxes 120 can still ensure the normal operation of the display screen, greatly improving the working stability of the display screen.

[0041] In some embodiments, one side of the power supply box 120 is attached to the back surface of the display unit 200.

[0042] In this embodiment, the fifth DC output interface DC5 of the power supply box 120 is connected to the power supply terminal of the corresponding display unit 200. The other DC interfaces of the power supply box 120 (such as the first DC output interface DC1, the second DC output interface DC2, the third DC output interface DC3, and the fourth DC output interface DC4) can extend to all directions of the power supply box 120, facilitating the transmission of DC power signals between power supply boxes 120. Through the interconnection and intercommunication of DC power signals, it achieves the effects of improving the brightness range of the LED large screen formed by splicing multiple display units 200 and power backup.

[0043] In some embodiments, refer to Figure 4 As shown, the display screen power supply architecture includes: multiple horizontal DC power supply lines 420 and multiple vertical DC power supply lines 410; the multiple horizontal DC power supply lines 420 and the multiple vertical DC power supply lines 410 are cross - connected, and the DC terminal of each ACDC module 100 is connected to the corresponding horizontal DC power supply line 420 and vertical DC power supply line 410.

[0044] In some embodiments, multiple ACDC modules 100 are arranged in an array.

[0045] In this embodiment, the ACDC module 100 can be disposed on the back surface of the display unit 200. When the display unit 200 is spliced with other display units 200, the ACDC module 100 disposed on its back surface will also be electrically connected to the corresponding DC terminals of the adjacent ACDC modules 100, so as to output the power inside the power supply box 120 to the adjacent power supply box 120 via a plurality of DC interfaces at the edge of the power supply box 120, realizing direct or indirect electrical connection between all the power supply boxes 120.

[0046] In some embodiments, the DC terminals of each row of ACDC modules 100 are connected to a corresponding row of horizontal DC power supply lines 420.

[0047] In some embodiments, the DC terminals of each column of ACDC modules 100 are connected to a corresponding column of vertical DC power supply lines 410.

[0048] In some embodiments, the sum of the powers of a plurality of display units 200 is equal to the sum of the output powers of a plurality of ACDC modules 100.

[0049] In this embodiment, the ACDC module 100 can be disposed on the back surface of the display unit 200. When the display unit 200 is spliced with other display units 200, the ACDC module 100 disposed on its back surface will also be electrically connected to the corresponding DC terminals of the adjacent ACDC modules 100, thus forming a complete power network. Even if one or more ACDC modules 100 are damaged, the other ACDC modules 100 can also distribute current signals to the corresponding ACDC modules 100, playing a backup role. For example, if the ACDC module 100 corresponding to a certain display unit 200 in the central area of the display screen is damaged, the ACDC modules 100 carried by the display units 200 in the four directions of its up, down, left, and right can all supply power to this display unit 200 through the power network to ensure its normal operation.

[0050] In some embodiments, the maximum power of each display unit 200 is less than or equal to the sum of the output powers of a plurality of ACDC modules 100.

[0051] In this embodiment, when the display unit 200 is spliced with other display units 200, the DC terminals of the ACDC module 100 corresponding to this display unit 200 are also connected to the DC terminals of the ACDC module 100 corresponding to other display units 200. All the ACDC modules 100 can supply power to all the display units 200 simultaneously, or supply power to specified display units 200 among them. For example, the output power of the ACDC module 100 is 200W, and the maximum brightness of the display unit 200 it loads is 1000 nit. After multiple display units 200 are spliced to form a large-screen splicing structure, assuming the display screen includes 16 display units 200 and the powers of the ACDC modules 100 corresponding to the 16 display units 200 are the same, then there are 16 power supplies in the power network after forming the large-screen splicing structure, and the total output power is 200 * 16 = 3200W. The theoretically supported maximum screen brightness is 1000 * 16 = 16000 nit, which is equivalent to the brightness range of the display screen being extended from 0 - 1000 nit to 0 - 16000 nit, achieving an improvement in the dynamic range of the large screen after splicing.

[0052] The embodiment of the present application also provides a display screen, including: a plurality of display units 200; and a display screen power supply architecture as described in any one of the above.

[0053] In some embodiments, the plurality of display units 200 are arranged in an array.

[0054] In this embodiment, the ACDC module 100 can be arranged on the back of the display unit 200. When the display unit 200 is spliced with other display units 200, the ACDC module 100 arranged on its back will also be electrically connected to the corresponding DC terminals of the adjacent ACDC modules 100, so as to output the power inside the power supply box 120 to the adjacent power supply box 120 via a plurality of DC interfaces on the edge of the power supply box 120, realizing the direct or indirect electrical connection between all the power supply boxes 120.

[0055] The beneficial effects of the embodiment of the present application compared with the prior art are as follows: The display screen power supply architecture is applied to a display screen, and the display screen includes a plurality of display units. Among them, the display screen power supply architecture includes a plurality of ACDC modules, and the plurality of ACDC modules are used to supply power to the plurality of display units. The DC terminals of adjacent ACDC modules are commonly connected to form a power network. Compared with a single power supply structure, the multiple interconnected power supplies in the power network can back up each other. Even if a power supply in the power network is damaged, as long as not all of them are damaged, the formed display screen can still work under certain conditions, that is, the product reliability is improved to a certain extent. And the power supply power range supplied to the display unit by the interconnected power supplies is wider than that of a single power supply, that is, the brightness dynamic range of the display unit is improved, thereby improving the user experience.

[0056] The foregoing embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A display screen power supply architecture, characterized in that: Applied to a display screen, the display screen includes a plurality of display units, and the display screen power supply architecture includes: A plurality of ACDC modules, wherein the plurality of ACDC modules are used to supply power to the plurality of display units; The DC terminals of the adjacent ACDC modules are connected in common.

2. The display screen power supply architecture according to claim 1, wherein: The DC ends of the multiple ACDC modules are respectively connected to the power supply ends of the multiple display units in a one-to-one correspondence.

3. The display screen power supply architecture as claimed in claim 2, characterized in that: A plurality of the ACDC modules are arranged in an array.

4. The display screen power supply architecture according to any one of claims 1 to 3, characterized in that: The display screen power supply architecture includes: a plurality of horizontal DC power supply lines and a plurality of vertical DC power supply lines; The plurality of transverse DC power supply lines and the plurality of longitudinal DC power supply lines are cross-connected; The DC end of each ACDC module is connected to the corresponding transverse DC power supply line and longitudinal DC power supply line.

5. The display screen power supply architecture as claimed in claim 4, characterized in that: The DC end of each row of the ACDC modules is connected to a corresponding row of transverse DC power supply lines.

6. The display screen power supply architecture as claimed in claim 4, characterized in that: The DC end of each column of the ACDC modules is connected to a corresponding column of longitudinal DC power supply lines.

7. The display screen power supply architecture according to any one of claims 1 to 3, characterized in that: The sum of the powers of the plurality of display units is equal to the sum of the output powers of the plurality of ACDC modules.

8. The display screen power supply architecture according to any one of claims 1 to 3, characterized in that: The maximum power of each of the display units is less than or equal to the sum of the output powers of the multiple ACDC modules.

9. A display screen, characterized in that: include: multiple display units; And a display screen power supply architecture as claimed in any one of claims 1 to 8.

10. The display screen according to claim 9, characterized in that: The plurality of display units are arranged in an array.

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