Backboard and display module

Abstract

The embodiment of the utility model provides a back plate and a display module, the back plate is provided with a lamp panel mounting side and a back side which are oppositely arranged, the lamp panel mounting side is provided with a central area and two edge areas, and the two edge areas are arranged on the two opposite sides of the central area in the first direction respectively; the central area is provided with a first lamp panel mounting surface, the edge area is provided with a second lamp panel mounting surface, the position of the first lamp panel mounting surface is higher than that of the second lamp panel mounting surface, and the first direction is the length direction or the width direction of the back plate.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a backplane and a display module. Background Art

[0002] In the related art, direct-type display modules need to be set with a larger light mixing distance to ensure uniform light output; the larger light mixing distance results in a larger overall thickness of the direct-type display module, which is difficult to meet the design requirements of thin and light products. Achieving overall thinning of direct-type display modules without reducing the light mixing effect is a technical problem that needs to be solved urgently. Utility Model Content

[0003] The embodiments of the present application provide a backplane and a display module, which can reduce the overall thickness of a direct-type display module without reducing the light mixing effect, thereby meeting the requirements of a lightweight and thin design.

[0004] On the one hand, an embodiment of the present application provides a back panel, having a light board mounting side and a back side that are relatively arranged, the light board mounting side having a central area and two edge areas, the two edge areas are respectively arranged on opposite sides of the central area along a first direction, the central area is provided with a first light board mounting surface, the edge area is provided with a second light board mounting surface, the first light board mounting surface is located at a higher position than the second light board mounting surface, and the first direction is the length direction or the width direction of the back panel.

[0005] In some embodiments, a first protrusion is provided on the back plate, and the first protrusion protrudes in the central area to form a first boss structure, and the top surface of the first boss structure is the first lamp panel mounting surface.

[0006] In some embodiments, a plurality of first protrusions are disposed on the back plate, the plurality of first protrusions are spaced apart corresponding to the central area, and the top surfaces of the plurality of first protrusions are flush; and / or the first protrusions are protruding ribs or protruding platforms.

[0007] In some embodiments, a second protrusion is provided on the back plate, and the second protrusion protrudes in the edge region to form a second boss structure, and the top surface of the second boss structure is the second lamp panel mounting surface.

[0008] In some embodiments, a plurality of second protrusions are provided on the back panel, the plurality of second protrusions are spaced apart corresponding to the edge area, and the top surfaces of the plurality of second protrusions are flush; or, the plurality of second protrusions are spaced apart in sequence along the first direction, and the height positions of the top surfaces of the plurality of second protrusions decrease in the direction from the center area to the edge area where they are located.

[0009] In some embodiments, the second raised portion is a raised rib or a raised platform.

[0010] In some embodiments, a connection hole is provided on at least one of the first light panel mounting surface and the second light panel mounting surface.

[0011] On the other hand, an embodiment of the present application provides a display module, comprising a light board, an optical film, two frames and the back panel described in any of the above embodiments, the light board is arranged on the light board mounting side of the back panel through the first light board mounting surface and the second light board mounting surface, the optical film is arranged on the side of the light board away from the light board mounting side, the two frames are respectively fixed on the two end edges of the back panel along the first direction, and the frames cover the edge of the optical film on the side away from the light board.

[0012] In some embodiments, the display module further includes a display panel, and the display panel is disposed on a side of the frame away from the optical film.

[0013] In some embodiments, the frame has a bottom wall, side walls and a front guard edge connected in sequence, the bottom wall is fixed to the edge of the back plate, the bottom wall and the front guard edge are arranged in sequence at intervals along the light emitting direction of the display module, the edge of the optical film is blocked between the front guard edge and the bottom wall, and the display panel is fixed on the side of the front guard edge away from the optical film.

[0014] In the embodiment of the present application, a first light board mounting surface and a second light board mounting surface of different heights are arranged on the light board mounting side of the back panel, and the position of the first light board mounting surface is higher than that of the second light board mounting surface. When the back panel is applied to a direct-down display module, the middle portion of the light board and the optical film is relatively far away from the back side of the back panel, while the edge portion is closer to the back side of the back panel. In this way, when the edge portion of the direct-down display module is provided with structural members such as a frame and a rib for supporting the display panel, the edge portion of the optical film can form an avoidance space with the surface of one side of such structural members away from the display panel, and the thickness of such structural members along the display direction can be reduced without overlapping such structural members and the optical film, thereby reducing the overall thickness of the direct-down display module, and at the same time avoiding the loss of the mixing distance and the mixing effect, thereby better meeting the design requirements of thinness and uniform light display. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 is a partial cross-sectional structural diagram of a back plate provided in some embodiments of the present application;

[0017] Figure 2 It is a partial cross-sectional structural diagram of a display module provided in some embodiments of the present application.

[0018] Description of main component symbols:

[0019] 1-back panel, 101-light board mounting side, 102-back side, 1011-central area, 1012-edge area, 11-first raised portion, 111-first light board mounting surface, 12-second raised portion, 121-second light board mounting surface, 13-connecting hole, 2-light board, 21-substrate, 22-optical lens, 3-optical film, 4-frame, 41-bottom wall, 42-side wall, 43-front guard, 5-display panel. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0021] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply 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 on the present application. 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 technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0022] “A and / or B” includes the following three combinations: A only, B only, and a combination of A and B.

[0023] The use of "suitable for" or "configured to" in this application is meant to be open and inclusive language, which does not exclude devices that are suitable for or configured to perform additional tasks or steps. In addition, the use of "based on" is meant to be open and inclusive, because the process, step, calculation or other action "based on" one or more stated conditions or values ​​can be based on additional conditions or values ​​beyond the stated values ​​in practice.

[0024] In this application, the word "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described in this application as "exemplary" is not necessarily to be construed as being preferred or advantageous over other embodiments. The following description is given to enable any technician in the field to implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present application can be implemented without using these specific details. In other instances, well-known structures and processes will not be elaborated in detail to avoid obscuring the description of the present application with unnecessary details. Therefore, the present application is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in the present application.

[0025] like Figure 1 and Figure 2 As shown, on the one hand, the embodiment of the present application provides a backplane 1, which can reduce the overall thickness of the direct-type display module without reducing the light mixing effect, thereby meeting the design requirements of lightness and thinness.

[0026] The back panel 1 has a light panel installation side 101 and a back side 102 which are arranged opposite to each other, and the light panel installation side 101 is used to install the light panel 2. The type of the back panel 1 can be determined according to actual needs, and can be a curved back panel with an inner cavity, a flat back panel without an inner cavity, etc., which is not limited in the embodiment of the present application.

[0027] The light board installation side 101 has a central area 1011 and two edge areas 1012, and the two edge areas 1012 are respectively arranged on opposite sides of the central area 1011 along the first direction, and the first direction is the length direction or the width direction of the back plate 1. The central area 1011 is provided with a first light board installation surface 111, and the edge area 1012 is provided with a second light board installation surface 121. Here, the position of the first light board installation surface 111 is higher than the position of the second light board installation surface 121, that is, the height position of the first light board installation surface 111 is higher than the height position of the second light board installation surface 121, so that the first light board installation surface 111 is farther away from the back side 102 of the back plate 1, and the second light board installation surface 121 is closer to the back side 102 of the back plate 1.

[0028] When the back panel 1 provided in the embodiment of the present application is applied to a direct-type display module, the middle portion of the light board 2 can be installed on the light board installation side 101 of the back panel 1 through the first light board installation surface 111, and the edge portion can be installed on the light board installation side 101 of the back panel 1 through the second light board installation surface 121. Since the first light board installation surface 111 is located at a higher position than the second light board installation surface 121, the middle portion of the light board 2 is relatively far away from the back side 102 of the back panel 1, and the edge portion of the light board 2 is closer to the back side 102 of the back panel 1, thereby making the middle portion of the optical film 3 arranged on the light board 2 relatively far away from the back side 102 of the back panel 1, and the edge portion of the optical film 3 is closer to the back side 102 of the back panel 1. In this way, when the edge of the direct-down display module is provided with structural members such as a frame 4 and a rib for supporting the display panel 5, the edge of the optical film 3 can form an avoidance space with the surface of one side of such structural members away from the display panel 5, so that the thickness of such structural members along the display direction can be reduced without overlapping the structural members and the optical film 3, thereby reducing the overall thickness of the direct-down display module; and the optical film 3 will not be affected by the overlapping effect of such structural members and will not be deformed or displaced, thereby avoiding the loss of the mixing distance and the mixing effect, and better meeting the design requirements of thinness and uniform light display.

[0029] In some embodiments, a first protrusion 11 may be provided on the back plate 1, and the first protrusion 11 may be provided corresponding to the central area 1011 of the light board installation side 101. The first protrusion 11 protrudes from the central area 1011 of the light board installation side 101 to form a first boss structure, and the top surface of the first boss structure is the first light board installation surface 111.

[0030] The number of the first raised portions 11 can be determined according to actual needs, and can be one or more, and the embodiments of the present application do not limit this. In some examples, a plurality of first raised portions 11 can be provided on the back panel 1, and the plurality of first raised portions 11 are arranged at intervals corresponding to the central area 1011 of the light board installation side 101, and the top surfaces of the plurality of first raised portions 11 are flush. In this way, the top surfaces of the plurality of first raised portions 11 can be in the same plane, and the top surfaces of the plurality of first raised portions 11 can be used to jointly support the middle portion of the light board 2, so that the middle portion of the light board 2 can be arranged flatly in the central area 1011 of the light board installation side 101.

[0031] The structure of the first raised portion 11 can be determined according to actual needs, and the embodiments of the present application do not limit this. In some examples, the first raised portion 11 is a raised rib or a raised platform. The raised rib is a linear rib extending along the second direction, and the second direction is perpendicular to or inclined at an angle to the first direction. The raised platform is a point-shaped rib that forms a local area on the back panel 1, and can have a platform-shaped structure such as a truncated cone, a prism, or a special-shaped cone. Here, the raised rib or the raised platform can be stamped by a stamping process, or can be integrally formed on the back panel 1 by processes such as injection molding, casting, etc., and the embodiments of the present application do not limit this.

[0032] In some embodiments, the back plate 1 may be provided with a second protrusion 12, which may be arranged corresponding to the edge area 1012 of the lamp board installation side 101. The second protrusion 12 protrudes from the edge area 1012 to form a second boss structure, and the top surface of the second boss structure is the second lamp board installation surface 121.

[0033] The number of the second raised portions 12 can be determined according to actual needs, and can be one or more, and the embodiments of the present application do not limit this. In some examples, a plurality of second raised portions 12 can be provided on the back panel 1, and the plurality of second raised portions 12 are arranged at intervals corresponding to the edge area 1012 of the light board installation side 101. In some examples, the top surfaces of the plurality of second raised portions 12 can be flush; in other words, the top surfaces of the plurality of second raised portions 12 can be in the same plane, and the top surfaces of the plurality of second raised portions 12 can be used to jointly support the edge of the light board 2, so that the edge of the light board 2 can be arranged flatly in the edge area 1012 of the light board installation side 101.

[0034] In other examples, the plurality of second protrusions 12 are arranged in sequence along the first direction, and the height positions of the top surfaces of the plurality of second protrusions 12 decrease in the direction from the center area 1011 to the edge area 1012 where the plurality of second protrusions 12 are located; in other words, in the edge area 1012 where the plurality of second protrusions 12 are located, the height position of the top surface of the second protrusion 12 closer to the center area 1011 is higher, while the height position of the top surface of the second protrusion 12 farther from the center area 1011 is lower. In this way, when the light board 2 and the optical film 3 are arranged on the back plate 1, along the direction from the center area 1011 to the edge area 1012 where the second protrusions 12 are located, the edge portions of the light board 2 and the optical film 3 gradually approach the back side 102 of the back plate 1, thereby providing a larger avoidance space and thickness reduction space at the edge portion of the direct-down display module, and the overall thickness of the direct-down display module can be significantly reduced.

[0035] The structure of the second raised portion 12 can be determined according to actual needs, and the embodiment of the present application does not limit this. In some examples, the second raised portion 12 can be a raised rib or a raised platform. For the corresponding introduction of the raised rib and the raised platform, please refer to the above description, which will not be repeated here.

[0036] In some embodiments, at least one of the first light board mounting surface 111 and the second light board mounting surface 121 may be provided with a connection hole 13. In some examples, the first light board mounting surface 111 may be provided with a connection hole 13, while the second light board mounting surface 121 may not be provided with a connection hole 13; in other examples, the first light board mounting surface 111 may not be provided with a connection hole 13, while the second light board mounting surface 121 may be provided with a connection hole 13; in still other examples, the first light board mounting surface 111 and the second light board mounting surface 121 may be provided with connection holes 13 respectively. The type of the connection hole 13 can be determined according to actual needs, and can be, for example, a threaded hole, a pin hole, etc., which is not limited in the embodiments of the present application.

[0037] On the other hand, an embodiment of the present application provides a display module, which includes a light board 2, an optical film 3, two frames 4 and a back panel 1 provided in any of the above embodiments. The overall thickness of the direct-type display module can be compressed without reducing the mixing light effect, thereby meeting the requirements of lightweight design.

[0038] The light board 2 is arranged on the light board installation side 101 of the back panel 1 through the first light board installation surface 111 and the second light board installation surface 121. The light board 2 may be provided with a substrate 21, a light-emitting chip and an optical lens 22, and emits light when powered on. The optical film 3 is arranged on the side of the light board 2 away from the light board installation side 101; when the optical lens 22 is provided on the light board 2, the optical film 3 may be arranged on the surface of the side of the optical lens 22 away from the substrate 21. Two frames 4 are respectively fixed to the two end edges of the back panel 1 along the first direction to enclose the back panel 1 to form an inner cavity; each frame 4 blocks one end edge of the optical film 3 away from the light board 2, and the frame 4 and the optical film 3 may be arranged at intervals.

[0039] Since the display module provided in the embodiment of the present application has the above-mentioned back panel 1, the thickness of the frame 4 along the display direction can be reduced while avoiding the overlapping interference between the frame 4 and the optical film 3, thereby reducing the overall thickness of the display module; at the same time, the optical film 3 can be prevented from being deformed and displaced by the overlapping effect of such structural parts, thereby avoiding the loss of the mixing distance and the mixing effect, thereby better meeting the design requirements of lightness and uniform light display.

[0040] In some embodiments, the display module may further include a display panel 5, which is disposed on a side of the frame 4 away from the optical film 3. The type of the display panel 5 may be determined according to actual needs, such as a liquid crystal panel, which is not limited in the present embodiment.

[0041] The structure of the frame 4 can be determined according to actual needs, and the embodiments of the present application do not limit this. In some examples, the frame 4 may have a bottom wall 41, a side wall 42, and a front rib 43 connected in sequence. The bottom wall 41 is fixed to the edge of the back plate 1, and the bottom wall 41 and the front rib 43 are arranged in sequence along the light emitting direction of the display module. The edge of the optical film 3 is blocked between the front rib 43 and the bottom wall 41, and the display panel 5 is fixed to the side of the front rib 43 away from the optical film 3.

[0042] The backplane and display module provided in the embodiments of the present application are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A backplane, characterized in that: It has a light board installation side and a back side that are relatively arranged, the light board installation side has a central area and two edge areas, the two edge areas are respectively arranged on the opposite sides of the central area along a first direction, the central area is provided with a first light board installation surface, the edge area is provided with a second light board installation surface, the first light board installation surface is located at a higher position than the second light board installation surface, and the first direction is the length direction or the width direction of the back panel.

2. The back plate according to claim 1, characterized in that: A first protrusion is provided on the back plate, and the first protrusion protrudes in the central area to form a first boss structure, and the top surface of the first boss structure is the first lamp board installation surface.

3. The back plate according to claim 2, characterized in that: The back plate is provided with a plurality of first protrusions, the plurality of first protrusions are arranged at intervals corresponding to the central area, and the top surfaces of the plurality of first protrusions are flush; and / or the first protrusions are protruding ribs or protruding platforms.

4. The back plate according to claim 1, characterized in that: A second protrusion is provided on the back plate, and the second protrusion protrudes in the edge area to form a second boss structure, and the top surface of the second boss structure is the second lamp panel installation surface.

5. The back plate according to claim 4, characterized in that: A plurality of second protrusions are provided on the back plate, and the plurality of second protrusions are arranged at intervals corresponding to the edge areas, and the top surfaces of the plurality of second protrusions are flush; or, the plurality of second protrusions are arranged at intervals in sequence along the first direction, and the height positions of the top surfaces of the plurality of second protrusions decrease in the direction from the center area to the edge area where they are located.

6. The back plate according to claim 4, characterized in that: The second raised portion is a raised rib or a raised platform.

7. The back plate according to claim 1, characterized in that: At least one of the first light board installation surface and the second light board installation surface is provided with a connection hole.

8. A display module, characterized in that: It includes a light board, an optical film, two frames and the back panel according to any one of claims 1 to 7, the light board is arranged on the light board installation side of the back panel through the first light board installation surface and the second light board installation surface, the optical film is arranged on the side of the light board away from the light board installation side, the two frames are respectively fixed to the end edges of the back panel along the first direction, and the frames cover the edge of the optical film on the side away from the light board.

9. The display module according to claim 8, characterized in that: The display module further comprises a display panel, and the display panel is arranged on a side of the frame away from the optical film.

10. The display module according to claim 9, characterized in that: The frame has a bottom wall, side walls and a front guard edge connected in sequence, the bottom wall is fixed to the edge of the back plate, the bottom wall and the front guard edge are arranged in sequence at intervals along the light output direction of the display module, the edge of the optical film is blocked between the front guard edge and the bottom wall, and the display panel is fixed on the side of the front guard edge away from the optical film.

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