Backlight source assembly, double-sided display module and double-sided display device

Abstract

The present application discloses a backlight source assembly, a double-sided display module, and a double-sided display device, wherein the double-sided display module includes a back panel and a first display assembly and a second display assembly arranged on opposite sides of the back panel, and the backlight source assembly includes: a substrate; a first light source component and a second light source component, which are arranged on one side of the substrate in parallel and spaced apart in a first direction, respectively corresponding to the first display component and the second display component. In the above manner, the backlight source assembly in the present application effectively reduces the number of times the large-sized raw material substrate is cut into panels during the manufacturing process of the backlight source assembly by making the substrate correspond to the two display components and simultaneously arrange two groups of light sources, thereby effectively reducing the amount of the raw material substrate remaining after cutting, and thus greatly reducing the waste of the raw material substrate, thereby effectively reducing the production cost of the backlight source assembly and improving the manufacturing efficiency of the backlight source assembly.

Description

Technical Field

[0001] The present application relates to the technical field of display panels, and in particular to a backlight source assembly, a double-sided display module and a double-sided display device. Background Art

[0002] With the continuous expansion of the LCD (Liquid Crystal Display) panel industry, industry competition is becoming increasingly fierce. How to seize cost advantages has become an important factor in maintaining a solid market position. Therefore, improving the utilization rate of various manufacturing materials has become the key to reducing costs.

[0003] Among them, many large-sized glass plates currently used to set LEDs (light emitting diodes) are cut into panels to form glass-based light strips as LCD backlight sources, which usually have glass left over and will generate a considerable amount of waste, thereby increasing production costs and reducing manufacturing efficiency. Summary of the invention

[0004] The main technical problem solved by the present application is to provide a backlight source assembly, a double-sided display module and a double-sided display device to solve the problem in the prior art that a considerable amount of waste will be generated when the glass substrate in the backlight source assembly is cut into panels, thereby increasing production costs and reducing manufacturing efficiency.

[0005] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide a backlight source assembly applied to a double-sided display module, the double-sided display module includes a back panel and a first display component and a second display component arranged on two opposite side surfaces of the back panel, wherein the backlight source assembly includes: a substrate; a first light source component and a second light source component, which are arranged on one side surface of the substrate in parallel and spaced apart in a first direction corresponding to the first display component and the second display component respectively.

[0006] The first light source component and the second light source component are symmetrically arranged corresponding to the center line of the substrate in the first direction.

[0007] Wherein, a minimum distance between the first light source component and the second light source component in the first direction is not less than a width of the first light source component in the first direction.

[0008] Wherein, in the first direction, the minimum distance between the first light source and one side edge of the substrate is not less than 50-100 microns; the minimum distance between the second light source and the other side edge of the substrate is not less than 50-100 microns.

[0009] There are at least two first light source elements, and at least two first light source elements are arranged parallel to each other and spaced apart in the second direction; there are at least two second light source elements, and at least two second light source elements are arranged parallel to each other and spaced apart in the second direction; and the second direction is perpendicular to the first direction.

[0010] In order to solve the above technical problems, another technical solution adopted in the present application is: to provide a double-sided display module, wherein the double-sided display module includes: a frame assembly; a back panel connected to the frame assembly; a first display assembly and a second display assembly, respectively arranged on opposite side surfaces of the back panel; a backlight source assembly, including a substrate, a first light source component and a second light source component, the substrate is connected to the frame assembly with the back panel separated, and is perpendicular to the back panel, the first light source component and the second light source component are respectively arranged in parallel and spaced apart on one side of the substrate facing the back panel in a first direction corresponding to the first display assembly and the second display assembly; wherein the first direction is perpendicular to the opposite side surfaces of the back panel.

[0011] Among them, the first display component includes a first switch tube body layer and a first display film, the first switch tube body layer is arranged on one side of the substrate, and the first display film is arranged on the first switch tube body layer; the second display component includes a second switch tube body layer and a second display film, the second switch tube body layer is arranged on the other side of the substrate, and the second display film is arranged on the second switch tube body layer.

[0012] The double-sided display module further includes a switch tube body layer, and the switch tube body layer is embedded in the back plate.

[0013] The double-sided display module also includes a driving circuit board, which is connected to the frame assembly or the back plate and is perpendicular to the back plate.

[0014] To solve the above technical problems, another technical solution adopted in the present application is: to provide a double-sided display device, wherein the double-sided display device includes a connected housing and a double-sided display module; wherein the double-sided display module is a double-sided display module as described in any of the above items.

[0015] The beneficial effect of the present application is that, different from the prior art, the first light source component and the second light source component in the backlight source assembly provided by the present application are respectively arranged in the first direction corresponding to the first display component and the second display component on the opposite side surfaces of the back panel in the double-sided display module, and are arranged in parallel and spaced apart on one side surface of the substrate, so that the two light source components are arranged simultaneously on the substrate corresponding to the two display components without the need to cut the substrate into panels again, thereby effectively reducing the number of times the large-size raw material substrate is cut into panels for each light source component during the manufacturing process of the backlight source assembly, thereby effectively reducing the remaining amount of the raw material substrate after cutting, and thus greatly reducing the waste of the raw material substrate, thereby effectively reducing the production cost of the backlight source assembly and improving the manufacturing efficiency of the backlight source assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0017] Figure 1 It is a structural schematic diagram of the first embodiment of the double-sided display module of the present application;

[0018] Figure 2 yes Figure 1 A detailed structural diagram of an embodiment of a backlight source assembly in a double-sided display module;

[0019] Figure 3 It is a structural schematic diagram of a second embodiment of a double-sided display module of the present application;

[0020] Figure 4 It is a structural schematic diagram of a third embodiment of a double-sided display module of the present application;

[0021] Figure 5 It is a structural schematic diagram of an embodiment of a double-sided display device of the present application.

[0022] Among them, 10 / 20 / 30 / 42, double-sided display module; 11 / 21 / 31, frame assembly; 12 / 22 / 32, back plate; 13 / 23 / 33, first display assembly; 131, first switch tube body layer; 132 / 231, first display film; 133 / 232, first cover plate; 331, first optical film; 332, first middle frame member; 333, first liquid crystal panel; 14 / 24 / 34, second display assembly; 141, second switch tube body layer; 142 / 241, second display film; 143 / 242, second cover plate; 341, second optical film; 342, second middle frame member; 343, second liquid crystal panel; 15 / 25 / 35, backlight assembly; 151 / 251 / 351, substrate; 152 / 252 / 352, first light source member; 153 / 253 / 353, second light source member; 16 / 26 / 36, driver circuit board; 361, movement board; 362, first circuit board; 363, second circuit board; 37, chip-on-film; 40, double-sided display device; 41, housing. DETAILED DESCRIPTION

[0023] 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 ordinary technicians in this field without creative work are within the scope of protection of this application.

[0024] The terms "first", "second" and "third" in this application are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first", "second" and "third" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. All directional indications (such as up, down, left, right, front, back...) in the implementation mode of this application are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0025] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0026] The present application is described in detail below with reference to the accompanying drawings and implementation methods.

[0027] See also Figure 1 , Figure 1 1 is a schematic diagram of the structure of the first embodiment of the double-sided display module of the present application. In this embodiment, the double-sided display module 10 includes: a frame assembly 11, a back plate 12, and a backlight assembly 15.

[0028] It is worth noting that the double-sided display module 10 specifically refers to a module that can display images synchronously in two opposite directions, such as electronic price signs used in shopping malls, or LCD TVs used in public places, and any other device that reasonably requires double-sided display. This application does not limit this.

[0029] The frame assembly 11 is specifically used to provide strength installation support for each component in the double-sided display module 10 .

[0030] Specifically, the back panel 12 is connected to the frame assembly 11, and a first display assembly 13 and a second display assembly 14 are respectively provided on two opposite side surfaces of the back panel 12, so that synchronous image display can be performed in two opposite directions through the first display assembly 13 and the second display assembly 14.

[0031] It is worth mentioning that the backlight source assembly 15 is specifically used to provide sufficient brightness and uniformly distributed light source for the first display assembly 13 and the second display assembly 14, so that the first display assembly 13 and the second display assembly 14 can display images normally, and the reliability of the backlight source assembly 15 will directly affect the quality of the display device.

[0032] The backlight source assembly 15 further includes a substrate 151 , a first light source component 152 and a second light source component 153 . The substrate 151 is spaced apart from the back plate 12 to be connected to the frame assembly 11 and is perpendicular to the back plate 12 .

[0033] Furthermore, the first light source 152 and the second light source 153 are specifically arranged in parallel and spaced apart on a side surface of the substrate 151 facing the back panel 12 corresponding to the first display component 13 and the second display component 14 respectively in the first direction X, so as to provide two mutually parallel light beams for the first display component 13 and the second display component 14 respectively, so that the first display component 13 and the second display component 14 can display images synchronously in two opposite directions.

[0034] The first direction X is specifically perpendicular to two opposite side surfaces of the back plate 12 .

[0035] The above scheme, by simultaneously setting two light source components on the substrate 151 corresponding to two display components, without the need to cut the substrate 151 into panels again, effectively reduces the number of times the large-sized raw material substrate 151 is cut into panels for each light source component during the manufacturing process of the backlight source assembly 15, thereby effectively reducing the remaining amount of the raw material substrate 151 after cutting, and thus greatly reducing the waste of the raw material substrate 151, thereby effectively reducing the production cost of the backlight source assembly 15 and improving the manufacturing efficiency of the backlight source assembly 15.

[0036] In one embodiment, the first display component 13 further includes a first switch body layer 131 and a first display film 132 . The first switch body layer 131 is correspondingly disposed on one side of the back plate 12 , and the first display film 132 is disposed on the first switch body layer 131 .

[0037] The second display component 14 further includes a second switch body layer 141 and a second display film 142 . The second switch body layer 141 is specifically disposed on the other side of the back plate 12 , and the second display film 142 is disposed on the second switch body layer 141 .

[0038] The first switch tube body layer 131 and the second switch tube body layer 141 are respectively used to receive external drive signals to light up the first display film 132 and the second display film 142 respectively, so that the first display film 132 and the second display film 142 display images respectively.

[0039] Furthermore, in one embodiment, the double-sided display module 10 specifically includes a driving circuit board 16, and the driving circuit board 16 is correspondingly connected to the frame assembly 11 or the back panel 12, and is perpendicular to the back panel 12, so as to effectively avoid being overlapped in the thickness direction of the back panel 12, thereby effectively reducing the overall thickness of the double-sided display module 10.

[0040] Among them, the driving circuit board 16 is specifically also electrically connected to the first light source component 152, the second light source component 153, the first switch tube body layer 131 and the second switch tube body layer 141, so as to provide power to the first light source component 152 and the second light source component 153 respectively to light up the first light source component 152 and the second light source component 153.

[0041] The first switch tube body layer 131 and the second switch tube body layer 141 are also electrically connected to the first display film 132 and the second display film 142, respectively, and the driving circuit board 16 is also used to provide the same or different driving signals to the first switch tube body layer 131 and the second switch tube body layer 141, respectively, so that the first display film 132 and the second display film 142 display the same or different pictures, respectively.

[0042] Furthermore, the driving circuit board 16 specifically includes a core board 161, a first circuit board 162 and a second circuit board 163. The core board 161 is electrically connected to the first light source component 152 and the second light source component 153 respectively, so as to provide power to the first light source component 152 and the second light source component 153, so as to light up the first light source component 152 and the second light source component 153.

[0043] The first circuit board 162 and the second circuit board 163 are electrically connected to the first switch tube body layer 131 and the second switch tube body layer 141, respectively, so as to provide the same or different driving signals to the first switch tube body layer 131 and the second switch tube body layer 141, so that the first display film 132 and the second display film 142 can display the same or different images, respectively.

[0044] In one embodiment, the first display component 13 specifically also includes a first cover plate 133, and the second display component 14 also correspondingly includes a second cover plate 143, and the first cover plate 133 and the second cover plate 143 are respectively arranged on the first display film 132 and the second display film 142 to provide protection for the first display film 132 and the second display film 142.

[0045] Optionally, the first display film 132 and the second display film 142 may be any other reasonable material layer such as an electronic paper film or an optical film, and the present application does not limit this.

[0046] Please continue reading Figure 2 , Figure 2 yes Figure 1 A detailed structural diagram of an embodiment of a backlight source assembly in a double-sided display module.

[0047] In one embodiment, the first light source component 152 and the second light source component 153 are symmetrically arranged with respect to a center line of the substrate 151 in the first direction X.

[0048] Optionally, a minimum distance a between the first light source element 152 and the second light source element 153 in the first direction X is not less than a width of the first light source element 152 in the first direction X.

[0049] Optionally, in the first direction X, a minimum distance b between the first light source element 152 and an edge of one side of the substrate 151 is not less than 50-100 micrometers.

[0050] Optionally, a minimum distance c between the second light source 153 and the other side edge of the substrate 151 is not less than 50-100 micrometers.

[0051] Optionally, the number of the first light source elements 152 is at least two, and the at least two first light source elements 152 are arranged parallel to each other and spaced apart in the second direction Y. The second direction Y is perpendicular to the first direction X.

[0052] Optionally, the number of the second light source elements 153 is at least two, and at least two second light source elements 153 are arranged in parallel with each other in the second direction Y and spaced apart from each other.

[0053] Optionally, the substrate 151 may be made of any reasonable material such as glass or resin, which is not limited in the present application.

[0054] See also Figure 3 , Figure 3 Schematic diagram of the structure of the second embodiment of the double-sided display module of the present application. Figure 1 The difference between the double-sided display module 20 and the first embodiment of the present application is that the double-sided display module 20 further includes a switch tube body layer (not shown), and the switch tube body layer is specifically embedded in the back plate 22 .

[0055] It is understandable that in this embodiment, by embedding the switch tube layer in the back plate 22 , the thickness of the first display component 23 and the second display component 24 can be effectively reduced, thereby effectively reducing the overall thickness of the double-sided display module 20 .

[0056] In one embodiment, the double-sided display module 20 specifically also includes a driving circuit board 26, and the driving circuit board 26 is correspondingly connected to the frame assembly 21 or the back panel 22, and is perpendicular to the back panel 22, so as to effectively avoid being overlapped in the thickness direction of the back panel 22, thereby effectively reducing the overall thickness of the double-sided display module 20.

[0057] The driving circuit board 26 is also electrically connected to the first light source 252 , the second light source 253 and the switch tube layer to provide power to the first light source 252 and the second light source 253 respectively to light up the first light source 252 and the second light source 253 .

[0058] The switch tube body layer is also electrically connected to the first display film 231 and the second display film 241 , and the driving circuit board 26 is also used to provide a driving signal for the switch tube body layer so that the first display film 231 and the second display film 241 can display images synchronously.

[0059] It can be understood that, in the present embodiment, the frame assembly 21, the first display film 231, the first cover plate 232, the second display film 241, the second cover plate 242, the backlight assembly 25, the substrate 251, the first light source component 252 and the second light source component 253 are respectively the same as the frame assembly 11, the first display film 132, the first cover plate 133, the second display film 142, the second cover plate 143, the backlight assembly 15, the substrate 151, the first light source component 152 and the second light source component 153, for details, please refer to Figure 1 And the related text content will not be repeated here.

[0060] See also Figure 4 , Figure 4 Schematic diagram of the structure of the third embodiment of the double-sided display module of the present application. Figure 1The difference between the first embodiment of the double-sided display module provided in the present application is that the first display component 33 in the double-sided display module 30 specifically also includes a first optical film 331, a first middle frame member 332 and a first liquid crystal panel 333; the second display component 34 specifically also includes a second optical film 341, a second middle frame member 342 and a second liquid crystal panel 343.

[0061] Among them, the first optical film 331 is arranged on one side surface of the back plate 32, and the first middle frame member 332 is arranged on the first optical film 331, and the first liquid crystal panel 333 is connected to the frame assembly 31; the second optical film 341 is arranged on the other side surface of the back plate 32, and the second middle frame member 342 is arranged on the second optical film 341, and the second liquid crystal panel 343 is connected to the frame assembly 31.

[0062] In one embodiment, the double-sided display module 30 specifically also includes a driving circuit board 36, which further includes a core board 361, a first circuit board 362 and a second circuit board 363. The core board 361 is electrically connected to the first light source component 352 and the second light source component 353 respectively to provide power to the first light source component 352 and the second light source component 353 to light up the first light source component 352 and the second light source component 353.

[0063] The first circuit board 362 and the second circuit board 363 are electrically connected to the first liquid crystal panel 333 and the second liquid crystal panel 343, respectively, so as to provide the same or different driving signals to the first liquid crystal panel 333 and the second liquid crystal panel 343, so that the first liquid crystal panel 333 and the second liquid crystal panel 343 can display the same or different pictures, respectively.

[0064] Furthermore, in one embodiment, the double-sided display module 30 specifically also includes a chip-on-chip film 37, which is specifically connected to the frame assembly 31, and the driving circuit board 36 is correspondingly arranged on the side surface of the chip-on-chip film 37 away from the back plate 32; and the driving circuit board 36 and the chip-on-chip film 37 are specifically perpendicular to the back plate 32, so as to effectively avoid being superimposed on the thickness direction of the back plate 32, thereby effectively reducing the overall thickness of the double-sided display module 30.

[0065] It is understandable that, in this embodiment, the frame assembly 31, the back plate 32, the backlight assembly 35, the substrate 351, the first light source component 352 and the second light source component 353 are respectively the same as the frame assembly 11, the back plate 12, the backlight assembly 15, the substrate 151, the first light source component 152 and the second light source component 153. For details, please refer to Figure 1 And the related text content will not be repeated here.

[0066] This application also provides a double-sided display module, see Figure 5, Figure 5 1 is a schematic diagram of a double-sided display device according to an embodiment of the present invention. In this embodiment, the double-sided display device 40 includes a housing 41 and a double-sided display module 42 connected to each other.

[0067] The double-sided display module 42 described in this embodiment is the double-sided display module 10, the double-sided display module 20 or the double-sided display module 30 described in any one of the above embodiments. Figure 1-Figure 4 And the related text descriptions will not be repeated here.

[0068] Different from the prior art, the first light source component and the second light source component in the backlight source assembly provided in the present application are respectively arranged in the first direction corresponding to the first display component and the second display component on the opposite side surfaces of the back panel in the double-sided display module, and are arranged in parallel and spaced apart on one side surface of the substrate, so that the two light source components are arranged simultaneously on the substrate corresponding to the two display components without the need to cut the substrate into panels again, thereby effectively reducing the number of times the large-size raw material substrate is cut into panels for each light source component during the manufacturing process of the backlight source assembly, thereby effectively reducing the remaining amount of the raw material substrate after cutting, and greatly reducing the waste of the raw material substrate, thereby effectively reducing the production cost of the backlight source assembly and improving the manufacturing efficiency of the backlight source assembly.

[0069] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A backlight source assembly used in a double-sided display module, the double-sided display module comprising a driving circuit board, a switch tube layer, a frame assembly, a back plate, and a first display assembly and a second display assembly arranged on two opposite sides of the back plate, the switch tube layer is embedded in the back plate, the first display assembly comprises a first display film and a first cover plate, the second display assembly comprises a second display film and a second cover plate, characterized in that: The backlight source assembly comprises: The substrate is provided with a plurality of layers of the back plate, wherein the substrate is spaced apart from the back plate so as to be connected to the frame assembly and is perpendicular to the back plate; the driving circuit board is connected to a side surface of the back plate facing the substrate, is perpendicular to the back plate, and is spaced apart from the substrate; the length of the driving circuit board in the first direction is greater than the length of the back plate in the first direction, the distance between the first display film and the substrate is greater than the distance between the back plate and the substrate, and the distance between the second display film and the substrate is greater than the distance between the back plate and the substrate; the first direction is perpendicular to the thickness direction of the back plate; The first light source component and the second light source component are arranged in parallel and spaced apart on one side surface of the substrate in a first direction, respectively corresponding to the first display component and the second display component; wherein the driving circuit board is electrically connected to the first light source component, the second light source component and the switch tube body layer, and the switch tube body layer is electrically connected to the first display film and the second display film.

2. The backlight source assembly according to claim 1, characterized in that: The first light source component and the second light source component are symmetrically arranged with respect to a center line of the substrate in the first direction.

3. The backlight assembly according to claim 1, characterized in that: A minimum distance between the first light source element and the second light source element in the first direction is not less than a width of the first light source element in the first direction.

4. The backlight assembly according to claim 1, characterized in that: In the first direction, the minimum distance between the first light source and an edge of one side of the substrate is not less than 50-100 microns; The minimum distance between the second light source and the other side edge of the substrate is not less than 50-100 micrometers.

5. The backlight source assembly according to any one of claims 1 to 4, characterized in that: The number of the first light source elements is at least two, and the at least two first light source elements are arranged parallel to each other and spaced apart in the second direction; The number of the second light source elements is at least two, and at least two of the second light source elements are arranged parallel to each other and spaced apart in the second direction; wherein the second direction is perpendicular to the first direction.

6. A double-sided display module, characterized in that: The double-sided display module comprises: Frame assembly; A back plate connected to the frame assembly; A switch tube body layer, embedded in the back plate; The first display assembly and the second display assembly are respectively arranged on two opposite sides of the back plate; the first display assembly includes a first display film and a first cover plate, and the second display assembly includes a second display film and a second cover plate; A backlight source assembly, comprising a substrate, a first light source component and a second light source component, wherein the substrate is connected to the frame assembly with the back plate spaced therebetween and is perpendicular to the back plate, and the first light source component and the second light source component are arranged in parallel and spaced apart on a side surface of the substrate facing the back plate in a first direction corresponding to the first display component and the second display component, respectively; wherein the first direction is perpendicular to the thickness direction of the back plate; A driving circuit board, wherein the driving circuit board is connected to a side surface of the back plate facing the substrate, is perpendicular to the back plate, is spaced apart from the substrate, and is electrically connected to the first light source component, the second light source component and the switch tube body layer, and the switch tube body layer is electrically connected to the first display film and the second display film; wherein the length of the driving circuit board in the first direction is greater than the length of the back plate in the first direction, the distance between the first display film and the substrate is greater than the distance between the back plate and the substrate, and the distance between the second display film and the substrate is greater than the distance between the back plate and the substrate.

7. A double-sided display device, characterized in that: The double-sided display device comprises a housing and a double-sided display module connected to each other; Wherein, the double-sided display module is the double-sided display module as claimed in claim 6.

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