CN218547865U - Display device - Google Patents

Abstract

The application discloses a display device. The display device includes: the display panel and the display screen bracket; the display panel is composed of a plurality of lamp panel modules, and the display screen bracket is positioned on one side of the display device away from the light emitting surface of the display device and used for fixing the lamp panel modules; the lamp panel module comprises a module bracket and a plurality of lamp panels fixed on the module bracket, and an adjusting layer used for adjusting the height of the lamp panel in the lamp panel module is arranged between the driving surfaces of at least one part of the lamp panels in the lamp panel module and the module bracket of the adjacent driving surfaces. The height of each lamp plate in the lamp plate module is adjusted through the adjusting layer, and then the light emitting surface of each lamp plate in the lamp plate module is controlled to be located on the same horizontal plane.

Description

Display device

Technical Field

The present application relates to the field of optoelectronics, and more particularly, to a display device.

Background

As a screen display technology, light Emitting Diodes (LEDs) have started to be a development course of continuous innovation since birth, and in recent years, sub-millimeter Light Emitting diodes (Mini LEDs) have increasingly become a mainstream trend in the screen display technology field, and are proposed by a competitive trend of each brand.

The Mini LED display screen is composed of a plurality of lamp panel modules, and each lamp panel module comprises a preset number of sub-millimeter LED lamp panels. In engineering requirements, the difference in level between the sub-millimeter light emitting diodes in the lamp panel module is usually required to be not more than ± 0.01mm, but is limited by the manufacturing process, and the difference in level between the lamp panels can reach ± 0.015mm at present. In the related art, the module thickness is selected, or the lamp panel height is finely adjusted through an adjusting plate and a transmission assembly matched with the adjusting plate, so that the engineering requirements are met. However, the adjustment process is time-consuming and labor-consuming, has accuracy errors, and easily causes the problem that the produced display screen has insufficient splicing flatness, so that the display effect is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a display device for set up the adjustment layer through the drive face of at least some lamp plates in the lamp plate module and the module bracket of adjacent drive face, keep the level with the light emitting area of each lamp plate in the control lamp plate module.

In a first aspect, the present invention provides a display device, including:

the display panel is used for displaying images and is composed of a plurality of lamp panel modules;

the display screen support is positioned on one side of the display device away from the light emitting surface of the display device and used for fixing the lamp panel module; wherein, the lamp plate module includes the module bracket and fixes a plurality of lamp plates on the module bracket, the drive face of at least some lamp plates in the lamp plate module is adjacent be equipped with the adjustment layer between the module bracket of drive face, the adjustment layer is used for the adjustment lamp plate height in the lamp plate module, so that each lamp plate light emitting area is in same horizontal plane in the lamp plate module.

The embodiment of this application sets up the adjustment layer through the module bracket of the drive face of at least partly lamp plate in the lamp plate module and adjacent drive face to lamp plate height in the lamp plate module is adjusted through this adjustment layer, and then each lamp plate light emitting area is in same horizontal plane in the control lamp plate module.

In some possible embodiments, the adjusting layer is made of a photosensitive adhesive.

In some possible embodiments, a designated area of the driving surface of the lamp panel is provided with a first glue filling area, and the first glue filling area is used for filling the photosensitive glue;

the module bracket is kept away from a side surface of the lamp panel is provided with a frame area with preset sizes, and a second glue filling area used for being pasted with photosensitive glue filled in the first glue filling area is arranged in the frame area.

In some possible embodiments, the designated area is provided with a plurality of spaced-apart adjacent column structures; and no overlapping area exists between each cylinder structure and the first glue filling area of the driving surface.

In some possible embodiments, the frame region of the module bracket is provided with a plurality of column holes which are spaced and adjacent; wherein, there is no overlapping area between the second glue filling area of each column hole and the frame area; the post pore pair the cylinder structure one-to-one, the post pore be used for with the cylinder structural connection of lamp plate, in order to incite somebody to action the lamp plate is fixed the module bracket is kept away from a side surface of display screen support.

In some possible embodiments, a hollow-out area penetrating through the module bracket is arranged outside the frame area of the module bracket; after the lamp panels are fixed on the module bracket, the orthographic projection of the components positioned on the lamp panel driving surfaces is positioned in the hollowed-out area.

In some possible embodiments, the designated position of the module bracket is provided with a threaded connecting hole, and the threaded connecting hole is used for connecting a screw corresponding to the threaded connecting hole so as to fix the module bracket on one side surface of the display screen bracket, which is close to the module bracket;

wherein, the screw with the degree of connection of threaded connection hole with the module bracket is in the level on the display screen support is positive correlation.

In some possible embodiments, the lamp panel module further includes an interface board disposed on a surface of one side of the module bracket adjacent to the display screen bracket; after the lamp panels are fixed on the module bracket, the lamp panels are connected with the interface boards through electric signals.

In some possible embodiments, the lamp panel module further includes an adapter plate, and the adapter plate is disposed on a side surface of the interface board away from the module bracket;

the adapter plate is connected with the interface plate through an electric signal.

In some possible embodiments, the lamp panel includes a printed circuit board, a plurality of sub-millimeter light emitting diodes disposed on the printed circuit board, and a package layer for covering a side surface of the printed circuit board adjacent to the sub-millimeter light emitting diodes;

and each sub-millimeter light emitting diode is arranged between the printed circuit board and the packaging layer.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a common Mini LED display screen provided in an embodiment of the present invention;

fig. 2 is a schematic view of a lamp panel module provided in an embodiment of the present invention;

fig. 3 is a schematic view of the level difference between the lamp panels according to the embodiment of the present invention;

fig. 4 is a schematic view of an adjusting plate according to an embodiment of the present invention;

fig. 5 is a structural diagram of a display device 500 according to an embodiment of the present invention;

fig. 6 is a structural diagram of a lamp panel module 601 provided in the embodiment of the present invention;

fig. 7 is a schematic diagram of a conventional module construction method according to an embodiment of the present invention;

fig. 8 is a schematic view illustrating that photosensitive glue is filled into the lamp panel 602 according to an embodiment of the present invention;

fig. 9 is a schematic view of a driving surface of the lamp panel 602 provided in an embodiment of the present invention;

fig. 10 is a schematic view of the glue filling area and the column structure provided in the embodiment of the present invention;

fig. 11 is a schematic diagram of a hollow area of a module bracket 601 according to an embodiment of the present invention;

fig. 12 is a schematic view of bright and dark lines provided by an embodiment of the present invention;

fig. 13 is a schematic view of a threaded connection hole provided in an embodiment of the present invention;

fig. 14 is a schematic diagram of an interface board 700 according to an embodiment of the present invention;

fig. 15 is a schematic view of an interposer 800 according to an embodiment of the present invention;

reference numerals: 501-display panel, 502-display screen support, 503-lamp panel module, 601-module bracket, 602-lamp panel, 603-adjusting layer, 700-interface board and 800-adapter plate.

Description of the preferred embodiment

In order to make the objects, technical solutions and advantages of the present application more clearly understood, the technical solutions in the embodiments of the present application will be described below clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. In the present application, the embodiments and features of the embodiments may be arbitrarily combined with each other without conflict. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.

The terms "first" and "second" in the description and claims of the present application and the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the term "comprises" and any variations thereof are intended to cover non-exclusive protection. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus. The term "a plurality" in the present application may mean at least two, for example, two, three or more, and the embodiments of the present application are not limited.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

With the development of the Mini LED technology, the existing display screen manufactured by using the Mini LED as a light source has been widely used by people. The Mini LED display generally includes a lamp panel module including a plurality of LEDs, and displays various information such as text, graphics, images, animation, video, and the like by controlling on/off of each sub-millimeter LED light source lamp on the lamp panel module.

Specifically, a conventional Mini LED display screen may be configured as shown in fig. 1, and includes a display screen support and a display panel located on the display screen support and used for displaying images. The display panel is formed by splicing a plurality of lamp panel modules, each lamp panel module is formed by splicing a preset number of sub-millimeter light-emitting diode lamp panels, and 4 lamp panels are contained in one lamp panel module shown in figure 2. As further shown in fig. 3, in engineering requirements, it is generally required that the difference in the horizontal height between the lamp panels in the lamp panel module is not more than ± 0.01mm, but is limited by the manufacturing process, and the difference in the horizontal height of the led lamp panel of each sub-millimeter in the currently constructed lamp panel module can reach ± 0.015mm. Adopt in the correlation technique mostly if select to the template lamp plate thickness, or through like the regulating plate that fig. 4 shows and with regulating plate matched with drive assembly to the height of each lamp plate in the lamp plate module finely tune to satisfy the engineering demand. However, the adjustment process is time-consuming and labor-consuming, has accuracy errors, and easily causes the problem that the produced display screen has insufficient splicing flatness, so that the display effect is poor.

In order to solve the above problem, an embodiment of the present application provides a display device 500, and fig. 5 is a cross-sectional view of the display device 500, and particularly as shown in fig. 5, the display device includes: a display panel 501 and a display screen holder 502. The display panel 501 is used for displaying images and is composed of a plurality of lamp panel modules 503; the display screen bracket 502 is located on one side of the display device 500 away from the light emitting surface thereof, and is used for fixing the lamp panel module 503. The lamp panel module 503 includes a module bracket 601 and a plurality of lamp panels 602 fixed to the module bracket 601.

As shown in the cross-sectional view of the lamp panel module 503 shown in fig. 6, an adjusting layer 603 is provided between the driving surfaces of at least a part of the lamp panels 602 in the lamp panel module 503 and the module bracket 601 of the adjacent driving surfaces, and the adjusting layer 603 is used for adjusting the horizontal height of each lamp panel 602 in the lamp panel module 503. In the structure shown in fig. 6, the adjustment layer 603 is provided between the driving surfaces of at least a part of the lamp panels 602 in the lamp panel module 503 and the module bracket 601 adjacent to the driving surfaces, so that the level of each lamp panel 602 in the lamp panel module 503 is adjusted by the adjustment layer 603, and the light emitting surfaces of each lamp panel 602 in the lamp panel module 503 are controlled to be on the same horizontal plane. The lamp panel 602 includes a printed circuit board, a plurality of sub-millimeter light emitting diodes disposed on the printed circuit board, and a packaging layer for covering the printed circuit board and the surface of the sub-millimeter light emitting diodes adjacent to each other, and each sub-millimeter light emitting diode is disposed between the printed circuit board and the packaging layer to construct the lamp panel 602.

In some possible embodiments, the material of the adjustment layer 603 may be a photosensitive adhesive.

The traditional module construction method is mostly as shown in fig. 7, and the lamp panel is directly fixed on the bracket through the methods such as screws, buckles, magnetic attraction and the like. Because the total height of different lamp plates has the difference, this kind of mode of directly fixing the lamp plate on the bracket easily leads to the unsatisfied engineering demand of each lamp plate difference in the module. In order to solve the above problem, in the embodiment of the present application, as shown in fig. 8, when building the lamp panel module 503, firstly, photosensitive glue is applied to a designated area of the driving surface of each lamp panel 602, and then the photosensitive glue is cured by a light source. The cured photosensitive adhesive is then polished to make the total height of each lamp panel 602 equal to the total height of the photosensitive adhesive covering the driving surface thereof. When the lamp panels 602 thus processed are mounted on the module bracket 601, the light emitting surfaces of the lamp panels 602 are located on the same horizontal plane.

In some possible embodiments, the driving surface of the lamp panel 602 according to the embodiment of the present application is shown in fig. 9, and a first glue filling area for filling photosensitive glue is disposed in a designated area of the driving surface of the lamp panel 602; a side surface of the module bracket 601, which is far away from the lamp panel 602, is provided with a frame area with a preset size, and a second glue filling area used for being pasted with the photosensitive glue filled in the first glue filling area is arranged in the frame area. When the lamp panel module 503 is constructed, photosensitive adhesive can be applied to the first glue filling area of each lamp panel 602, and the glue application side of each lamp panel 602 is attached to the module bracket 601 after the photosensitive adhesive is cured and polished by the light source, that is, the first glue filling area corresponds to the second glue filling area.

Further, the designated area of above-mentioned lamp plate 602 still is equipped with a plurality of adjacent cylinder structures of interval, and there is not the overlapping region between the first glue filling district of each cylinder structure and drive surface. Correspondingly, the frame area of the module bracket 601 is provided with a plurality of column holes which are spaced and adjacent to each other, and no overlapping area exists between each column hole and the second glue filling area of the frame area. As shown in fig. 10, the positions of the first glue filling area and the column structure corresponding to the column hole in the lamp panel 602 can be set according to the position of the column hole of the module bracket 601, and then the position of the second glue filling area corresponding to the first glue filling area is set according to the position of the first glue filling area. Like this, wait to scribble the photosensitive glue and scribble the first gluey district of filling of each lamp plate 602 and polish the back to the photosensitive glue of solidification, can make the photosensitive glue that is located first gluey district of filling accurately laminate in the second gluey district of filling through being connected the post hole with lamp plate 602 and the cylinder structure of module bracket 601.

In some possible embodiments, a hollow-out area penetrating through the module bracket 601 is disposed outside the frame area of the module bracket 601 in the embodiments of the present application. The hollow-out areas are not overlapped with the frames, and the hollow-out areas are used for exposing components on the driving surfaces of the lamp panels 602 installed on the module bracket 601 to the outside of the bracket, specifically, as shown in fig. 11, after the lamp panels 602 are fixed on the module bracket 601, the orthographic projections of the components on the driving surfaces of the lamp panels 602 are located in the hollow-out areas.

As mentioned above, the display panel of the Mini LED display screen is formed by splicing a plurality of lamp panel modules, and the overall thickness of each lamp panel module may be different, which causes a height difference in the splicing process of the lamp panel modules. This causes the assembled display panel to appear as bright and dark lines that can be visually perceived by a viewer as shown in fig. 12 during the display of an image. In order to solve the above problem, in the embodiment of the present application, a screw coupling hole is provided at a predetermined position of the module bracket 601. As shown in fig. 13, the screw holes are used to connect screws corresponding to the screw holes, so as to fix each module panel module 503 on a side surface of the display panel bracket 502 adjacent to the module bracket 601. It should be understood that the connection degree of the screw and the threaded connection hole is positively correlated to the horizontal height of each module bracket 601 on the display screen bracket 502, that is, the screw is rotated to ensure that each lamp panel module 503 is at the same horizontal height on the display screen bracket 502. Therefore, the problem that the bright and dark lines appear in the process of displaying images of the assembled display panel can be avoided.

In the above-mentioned flow, this application embodiment sets up the adjustment layer through the module bracket of the drive face of at least some lamp plates in the lamp plate module and adjacent drive face to through the lamp plate height in this adjustment layer adjustment lamp plate module, and then each lamp plate light emitting area is in same horizontal plane in the control lamp plate module. And through the threaded connection hole that is used for connecting the screw that sets up for the module bracket of lamp plate module to all be in same level on the display screen support through each lamp plate module of adjustment screw degree of connection control.

Next, how the lamp panel module 503 is mounted on the display screen bracket 502 will be described. Specifically, as shown in fig. 14, the lamp panel module 503 of the embodiment of the present application further includes an interface board 700 disposed on a side surface of the module bracket 601 adjacent to the display screen bracket 502. The interface board 700 is a HUB board, and after the lamp panels 602 are fixed on the module bracket 601, the components on the driving surface of the lamp panels 602 are electrically connected to the interface board 700 through the hollow areas of the module bracket 601. Specifically, a plurality of first connection terminals may be disposed on the driving surface of each lamp panel 602, and a second connection terminal (not shown) for electrically connecting with the first connection terminals may be disposed on the interface board 700. Thus, the interface board 700 can convert the received display signals such as text, pictures, video, etc. into control signals for controlling the lamp panels 602, and further control the lamp panels 602 to display images.

In some possible embodiments, in order to better control the plurality of lamp panels 602 on different module brackets 601 synchronously, an adapter board 800 may be disposed on the side of the interface board 700 away from the lamp panel module 503. As shown in fig. 15, the adapter board 800 is used for electrically connecting with a plurality of interface boards 700, so as to receive display signals and transmit the display signals to each interface board 700. Specifically, a plurality of third connection terminals may be disposed on a side surface of each interface board 700 away from the lamp panel module 503, and a fourth connection terminal (not shown in the figure) for electrically connecting with the third connection terminals may be disposed on the adaptor board 800. It should be noted that the adaptor board 800 and the interface board 700 may be integrated into a single board, that is, they may be integrated into a single board, so as to simultaneously implement the functions of receiving and converting signals.

It should be noted that the above-mentioned contents are only the preferred embodiments of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Further, while the operations of the methods of the present application are depicted in the drawings in a particular order, this does not require or imply that these operations must be performed in this particular order, or that all of the illustrated operations must be performed, to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims (10)

1. A display device, comprising:

the display panel is used for displaying images and is composed of a plurality of lamp panel modules;

the display screen support is positioned on one side of the display device away from the light emitting surface of the display device and used for fixing the lamp panel module; wherein, the lamp plate module includes the module bracket and fixes a plurality of lamp plates on the module bracket, the drive face of at least some lamp plates in the lamp plate module is adjacent be equipped with the adjustment layer between the module bracket of drive face, the adjustment layer is used for the adjustment lamp plate height in the lamp plate module, so that each lamp plate light emitting area is in same horizontal plane in the lamp plate module.

2. The display device according to claim 1, wherein the adjusting layer is made of a photosensitive adhesive.

3. The display device according to claim 2, wherein a designated area of the driving surface of the lamp panel is provided with a first glue filling area, and the first glue filling area is used for filling the photosensitive glue;

the module bracket is kept away from a side surface of the lamp panel is provided with a frame area with preset sizes, and a second glue filling area used for being pasted with photosensitive glue filled in the first glue filling area is arranged in the frame area.

4. The display device according to claim 3, wherein the designated area is provided with a plurality of spaced-adjacent columnar structures; and no overlapping area exists between each cylinder structure and the first glue filling area of the driving surface.

5. The display device according to claim 4, wherein the frame region of the module bracket is provided with a plurality of column holes spaced apart from each other; wherein, there is no overlapping area between the second glue filling area of each column hole and the frame area; the post pore pair the cylinder structure one-to-one, the post pore be used for with the cylinder structural connection of lamp plate, in order to incite somebody to action the lamp plate is fixed the module bracket is kept away from a side surface of display screen support.

6. The display device according to any one of claims 3 to 5, wherein a hollow-out region penetrating through the module bracket is provided outside a frame region of the module bracket; after the lamp panels are fixed on the module bracket, the orthographic projection of the components positioned on the lamp panel driving surfaces is positioned in the hollowed-out area.

7. The display device according to claim 1, wherein a designated position of the module bracket is provided with a threaded connection hole for connecting a screw corresponding to the threaded connection hole to fix the module bracket to a side surface of the display screen bracket adjacent to the module bracket;

the connection degree of the screw and the threaded connection hole is in positive correlation with the horizontal height of the module bracket on the display screen support.

8. The display device according to claim 1, wherein the lamp panel module further comprises an interface board disposed on a surface of a side of the module bracket adjacent to the display screen bracket; after the lamp panels are fixed on the module bracket, the lamp panels are connected with the interface boards through electric signals.

9. The display device of claim 8, wherein the lamp panel module further comprises an adapter plate, and the adapter plate is arranged on a side surface of the interface board away from the module bracket;

the adapter plate is connected with the interface plate through an electric signal.

10. The display device of claim 1, wherein the lamp panel comprises a printed circuit board, a plurality of sub-millimeter light emitting diodes arranged on the printed circuit board, and an encapsulation layer covering a side surface of the printed circuit board adjacent to the sub-millimeter light emitting diodes;

and each sub-millimeter light emitting diode is arranged between the printed circuit board and the packaging layer.

Images