Double-sided display and display equipment

Abstract

The utility model provides a double-sided display and display equipment, the double-sided display comprises a bearing frame, a light bar, a light guide plate assembly and two display panels, and the bearing frame is provided with a containing cavity; the light bar is arranged on the side wall of the accommodating cavity; the light guide plate assembly is arranged on the side wall of the containing cavity, the light guide plate assembly is provided with two opposite light-emitting surfaces and a light-in surface arranged between the two light-emitting surfaces, and the light-emitting side of the light bar faces the light-in surface, so that first light rays emitted by the light bar are emitted from the two light-emitting surfaces after passing through the light-in surface; the display panels are arranged on the bearing frame, the two display panels are in one-to-one correspondence with the two light-emitting surfaces, the light-emitting sides of the display panels deviate from the corresponding light-emitting surfaces, and the light-emitting directions of the display panels are the same as the light-emitting directions of the corresponding light-emitting surfaces. The double-sided display can achieve the purposes of being light, thin and high in cost performance.

Description

Technical Field

[0001] The present application belongs to the field of display technology, and more specifically, to a double-sided display and a display device. Background Art

[0002] At present, the LCD industry has launched a new double-sided display, which is mostly used in display devices that require double-sided display like airports, stations, and shopping malls, such as advertising machines that can display on both sides.

[0003] The double-sided display in the related art is achieved by placing two independent display modules on opposite sides of a carrier plate and then fixing the two display modules with an outer frame. However, the double-sided display with the above structure is relatively thick, which not only makes the double-sided display heavy and inconvenient to carry, but also has more parts and higher cost. Utility Model Content

[0004] The embodiments of the present application provide a double-sided display and a display device, wherein a light bar and a light guide plate assembly are both arranged on the side walls of a receiving cavity, and the light emitting side of the light bar faces the light input surface of the light guide plate assembly, so that the first light emitted by the light bar passes through the light input surface and then is emitted from the two light output surfaces, and then two display panels are both arranged on a carrier frame, the two display panels correspond one-to-one to the two light output surfaces of the light guide plate assembly, and the light output directions of the display panels are the same as the light output directions of the corresponding light output surfaces, so that not only the first light rays from the two output lights are displayed after passing through the corresponding display panels, thereby realizing double-sided display, but also the size of the double-sided display in the thickness direction is reduced, so that the double-sided display achieves the purpose of being both thin and light-weight and having a high cost performance.

[0005] In the first aspect, the present application provides a double-sided display, comprising a carrying frame, a light bar, a light guide plate assembly, and two display panels, wherein the carrying frame has a accommodating cavity; the light bar is arranged on the side wall of the accommodating cavity; the light guide plate assembly is arranged on the side wall of the accommodating cavity, the light guide plate assembly has two light emitting surfaces opposite to each other, and a light incident surface arranged between the two light emitting surfaces, the light emitting side of the light bar faces the light incident surface, so that the first light emitted by the light bar passes through the light incident surface and then is emitted from the two light emitting surfaces; the display panels are arranged on the carrying frame, the two display panels correspond to the two light emitting surfaces one by one, the light emitting sides of the display panels respectively turn away from the corresponding light emitting surfaces, and the light emitting directions of the display panels are the same as the light emitting directions of the corresponding light emitting surfaces.

[0006] In some embodiments, the light guide plate assembly includes: two light guide plates, and a reflective element sandwiched between the two light guide plates, the surface of the light guide plate close to the reflective element is a grid surface, the surface of the light guide plate away from the reflective element is the light emitting surface, the side surface connected between the light emitting surface and the grid surface is the light incident surface, the light incident surface intersects with the light emitting surface, and the light incident surface can receive the first light.

[0007] In some embodiments, the light incident surface is perpendicular to the light emitting surface.

[0008] In some embodiments, the thickness of the light guide plate ranges from 1.5 mm to 6 mm.

[0009] In some embodiments, the light guide plate is a tempered glass light guide plate.

[0010] In some embodiments, an edge of the light guide plate along a first direction protrudes from an edge of the display area of ​​the display panel by 1 mm to 3 mm, and the first direction is perpendicular to a thickness direction of the light guide plate.

[0011] In some embodiments, an edge of the light guide plate along the second direction protrudes from an edge of the display area of ​​the display panel by 1 mm to 3 mm, and the second direction, the first direction, and a thickness direction of the light guide plate are perpendicular to each other.

[0012] In some embodiments, the light strip is provided on one side of the light guide plate, and the light strip includes a light board and lamp beads arranged on the light board, the lamp beads face the light incident surface, and the gap between the light incident surface and the lamp beads along the optical axis direction of the lamp beads is 0 to 0.3 mm.

[0013] In some embodiments, the two light guide plates correspond to the two display panels one by one, and an optical film is disposed between the light guide plate and the corresponding display panel.

[0014] In some embodiments, the supporting frame includes a first frame and a second frame, the first frame and the second frame are connected to form the accommodating cavity, the first frame and the second frame are detachably connected, and the light bar is arranged on the first frame and / or the second frame.

[0015] In some embodiments, the first frame includes a first side wall, a second side wall, and a third side wall, the first side wall is connected between the second side wall and the third side wall, the first side wall, the second side wall, and the third side wall are perpendicular to each other, the light bar is disposed on the first side wall, and the light guide plate assembly is fixed on the inner wall of the second frame.

[0016] In some embodiments, a portion of the edge of the display panel is bonded to the second frame, and another portion of the edge of the display panel is connected to the first frame via foam.

[0017] In some embodiments, the foam has a thickness of 0.4 mm to 0.9 mm.

[0018] The beneficial effect of the double-sided display provided by the present application is that compared with the prior art, the double-sided display provided by the present application, by arranging the light guide plate assembly and the light bar on the side wall of the accommodating cavity of the carrying frame, the light emitting side of the light bar faces the light incident surface of the light guide plate assembly, and then arranging the two display panels on the carrying frame, the two display panels correspond one-to-one to the two light emitting surfaces of the light guide plate assembly, and the light emitting directions of the display panels are the same as the light emitting directions of the respective corresponding light emitting surfaces, so that not only the first light rays from the two light emitting surfaces are displayed after passing through the respective corresponding display panels, thereby realizing double-sided display, but also, the present application arranges the light bar on the side wall of the accommodating cavity, so that the light bar is located on the side of the light guide plate assembly to provide a side-emitting light source for the two display panels, thereby reducing the size of the double-sided display in the thickness direction, so that the double-sided display can achieve the purpose of being both light and thin and having a high cost performance.

[0019] In a second aspect, the present application further provides a display device, comprising a base, and the double-sided display described in the first aspect, wherein the double-sided display is disposed on the base.

[0020] The beneficial effect of the display device provided by the present application is that: by arranging both the light guide plate assembly and the light bar on the side wall of the accommodating cavity of the bearing frame, the light emitting side of the light bar faces the light inlet surface of the light guide plate assembly, and then arranging both the two display panels on the bearing frame, the two display panels correspond to the two light emitting surfaces of the light guide plate assembly one by one, and the light emitting direction of the display panel is the same as the light emitting direction of the corresponding light emitting surface, so that not only the first light rays from the two light emitting surfaces are displayed after passing through the corresponding display panels, thereby realizing double-sided display, but also, the present application arranges the light bar on the side wall of the accommodating cavity, so that the light bar is located on the side of the light guide plate assembly to provide a side-emitting light source for the two display panels, reducing the size of the double-sided display in the thickness direction, so that the double-sided display can achieve the purpose of being both thin and light and cost-effective. The display device can be placed on a desktop or on the ground through a base. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 paying creative labor.

[0022] Figure 1 A schematic diagram of the structure of a double-sided display provided in Embodiment 1 of the present application;

[0023] Figure 2 for Figure 1 Exploded view in ;

[0024] Figure 3 for Figure 1 A cross-sectional view at the dotted line A;

[0025] Figure 4 for Figure 3 The enlarged view of point I in the middle;

[0026] Figure 5 for Figure 3 The enlarged view of II in the middle;

[0027] Figure 6 It is a cross-sectional schematic diagram of the connection between the first frame, the light bar and the light guide plate assembly in the first embodiment of the present application;

[0028] Figure 7 This is a schematic diagram of the structure of the double-sided display provided in Example 2 of the present application.

[0029] Among them, the reference numerals in the figure are:

[0030] 100, double-sided display; 1, carrying frame; 10, accommodating cavity; 11, first frame; 111, first side wall; 112, second side wall; 113, third side wall; 12, second frame; 13, foam; 14, double-sided tape;

[0031] 2. Light bar; 21. Light board; 22. Light beads;

[0032] 3. Light guide plate assembly; 301. Light emitting surface; 302. Light entering surface; 303. Dot surface; 31. Light guide plate; 32. Reflector; 33. Optical film;

[0033] 4. Display panel;

[0034] 200. Base. DETAILED DESCRIPTION

[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0036] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0037] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and 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 should not be understood as a limitation on the present application.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] Embodiment 1

[0040] like Figures 1 to 4 As shown, the present application provides a double-sided display 100, including a carrying frame 1, a light bar 2, a light guide plate assembly 3, and two display panels 4, the carrying frame 1 has a accommodating cavity 10; the light bar 2 is arranged on the side wall of the accommodating cavity 10; the light guide plate assembly 3 is arranged on the side wall of the accommodating cavity 10, the light guide plate assembly 3 has two light emitting surfaces 301 opposite to each other, and a light incident surface 302 arranged between the two light emitting surfaces 301, the light emitting side of the light bar 2 faces the light incident surface 302, so that the first light emitted by the light bar 2 passes through the light incident surface 302 and then is emitted from the two light emitting surfaces 301; the display panels 4 are arranged on the carrying frame 1, the two display panels 4 correspond to the two light emitting surfaces 301 one by one, the light emitting sides of the display panels 4 are respectively away from the corresponding light emitting surfaces 301, and the light emitting directions of the display panels 4 are the same as the light emitting directions of the corresponding light emitting surfaces 301.

[0041] The light emitting direction of the display panels 4 is the same as the light emitting direction of the corresponding light emitting surfaces 301, which means that the two display panels 4 are arranged along the same direction. Figure 3 The directions indicated by the arrows X are arranged on two opposite sides of the carrier frame 1, Figure 3 The light from the display panel 4 on the left side is emitted in a direction to the left, from the light guide plate assembly 3 located at Figure 3 The light emitting direction of the first light emitted from the light emitting surface 301 of the left light guide plate 31 is also leftward; Figure 3 The light from the display panel 4 on the right is directed to the right, from the light guide plate assembly 3 located at Figure 3 The light emitting direction of the first light emitted from the light emitting surface 301 of the right light guide plate 31 is also rightward.

[0042] The beneficial effect of the double-sided display 100 provided by the present application is that compared with the prior art, the double-sided display 100 provided by the present application, by arranging the light guide plate assembly 3 and the light bar 2 on the side wall of the accommodating cavity 10 of the carrying frame 1, the light emitting side of the light bar 2 faces the light inlet surface 302 of the light guide plate assembly 3, and then arranging the two display panels 4 on the carrying frame 1, the two display panels 4 correspond one-to-one to the two light emitting surfaces 301 of the light guide plate assembly 3, and the light emitting directions of the display panels 4 are the same as the light emitting directions of the respective corresponding light emitting surfaces 301, so that not only the first light rays from the two light emitting surfaces are displayed after passing through the respective corresponding display panels 4, thereby realizing double-sided display, but also, the present application arranges the light bar 2 on the side wall of the accommodating cavity 10, so that the light bar 2 is located on the side of the light guide plate assembly 3 to provide a side-emitting light source for the two display panels 4, thereby reducing the size of the double-sided display 100 in the thickness direction, so that the double-sided display 100 can achieve the purpose of taking into account both lightness and thinness and high cost performance.

[0043] like Figure 3 and Figure 4 As shown, in some embodiments, the light guide plate assembly 3 includes: two light guide plates 31, and a reflective member 32 sandwiched between the two light guide plates 31, and the side surfaces of the two light guide plates 31 close to the reflective member 32 are arranged opposite to each other, so that the side surfaces of the two light guide plates 31 facing away from the reflective member 32 are opposite to each other, that is, the two light emitting surfaces 301 of the light guide plate assembly 3 are opposite to each other, and the surface of the light guide plate 31 close to the reflective member 32 is the grid surface 303, and the surface of the light guide plate 31 facing away from the reflective member 32 is the light emitting surface 301, and the side surface connected between the light emitting surface 301 and the grid surface 303 is the light input surface 302, the light input surface 302 intersects with the light emitting surface 301, and the light input surface 302 can receive the first light.

[0044] By sandwiching the reflector 32 between the two light guide plates 31 to form an overlapping sandwich structure, the light guide plate assembly 3 is easy to assemble and has good supporting strength, which is beneficial to improving the reliability of the double-sided display 100; moreover, the use of the luminescence method can not only improve the uniformity of the first light emitted from the light emitting surface 301.

[0045] like Figure 3 and Figure 6 As shown, in some embodiments, the light incident surface 302 is perpendicular to the light emitting surface 301 .

[0046] Through the above-mentioned arrangement, not only can the uniformity of the first light emitted from the light emitting surface 301 be further improved, but also it is easy to determine the installation reference when installing the light guide plate assembly 3 with the supporting frame 1 and the light strip 2, which is beneficial to improve the installation accuracy. In addition, this makes the processing technology of the light guide plate 31 simple, the cost is low, and the processing accuracy is high.

[0047] like Figure 3 and Figure 4 As shown, in some embodiments, the thickness of the light guide plate 31 ranges from 1.5 mm to 6 mm.

[0048] The thickness of the light guide plate 31 is a major factor in the design process of the double-sided display 100. When the thickness of the light guide plate 31 is small, the overall support strength of the light guide plate assembly 3 will be insufficient, which will cause the double-sided display 100 to be easily damaged. If the thickness of the light guide plate 31 is too large, the thickness of the double-sided display 100 will be too large, which is not conducive to the thinness of the double-sided display 100. By designing the thickness of the light guide plate 31 to be within the above range, the user can select the thickness of the light guide plate 31 in combination with the overall support strength of the light guide plate assembly 3 and the overall thickness requirements of the display. The thickness of the light guide plate 31 can be 1.5 mm, 2 mm, 3 mm, 5 mm, 6 mm, etc., so that the overall support strength of the light guide plate assembly 3 meets the requirements, which not only improves the reliability of the double-sided display 100, but also facilitates the thinness of the double-sided display 100 and has a wide range of applications.

[0049] like Figure 3 and Figure 4 As shown, in some embodiments, the light guide plate 31 is a tempered glass light guide plate 31 .

[0050] Since tempered glass has higher strength than ordinary glass, the light guide plate 31 is made of tempered glass, which improves the supporting strength of the light guide plate assembly 3, thereby facilitating the improvement of the installation accuracy of the light guide plate assembly 3 and thus facilitating the improvement of the reliability of the double-sided display 100.

[0051] like Figure 2 , Figure 3 and Figure 5 As shown, in some embodiments, the light guide plate 31 is arranged along a first direction (eg Figure 3 and Figure 5 The edge (the direction indicated by the arrow Z) Figure 5 The right end surface of the light guide plate 31 in the display panel 4 protrudes from the edge of the display area ( Figure 5 For example, the edge of the light guide plate 31 along the first direction protrudes from the edge of the display area of ​​the display panel 4 by 1 mm, 1.2 mm, 1.8 mm, 2 mm, or 2.5 mm, etc. The first direction is perpendicular to the thickness direction of the light guide plate 31 (such as Figure 2direction indicated by arrow X).

[0052] The first direction may be a length direction or a width direction perpendicular to the thickness direction of the light guide plate 31. Figure 3 and Figure 5 The direction indicated by the arrow Z in the figure is used as an example for explanation, but it is not limiting.

[0053] If the edge of the light guide plate 31 protrudes from the display area by a small distance, less first light will enter the display panel 4 from the light guide plate 31, especially less first light entering the edge of the display panel 4 along the first direction, causing a dark shadow to appear at the edge of the display panel 4; if the edge of the light guide plate 31 protrudes from the display area by a large distance, part of the first light from the light emitting surface 301 of the light guide plate 31 will not be able to fully enter the display panel 4, resulting in an overall reduction in the first light entering the display panel 4, thereby reducing the display brightness. Through the above settings, the double-sided display 100 can achieve the purpose of both reducing shadows and increasing brightness.

[0054] In some embodiments, the edge of the light guide plate 31 along the second direction protrudes from the edge of the display area of ​​the display panel 4 by 1 mm to 3 mm, and the second direction, the first direction, and the thickness direction of the light guide plate 31 are perpendicular to each other.

[0055] The second direction is the length direction of the light guide plate 31 (eg Figure 2 direction indicated by arrow Y).

[0056] If the edge of the light guide plate 31 protrudes from the display area by a small distance, less first light will enter the display panel 4 from the light guide plate 31, especially the edge of the display panel 4 along the second direction, and even the first light on all four edges will be reduced, causing a dark shadow to appear on the edge of the display panel 4; if the edge of the light guide plate 31 protrudes from the display area by a large distance, part of the first light from the light exit surface 301 of the light guide plate 31 will not be able to fully enter the display panel 4, resulting in an overall reduction in the first light entering the display panel 4, thereby reducing the display brightness. Through the above-mentioned settings, the double-sided display 100 can achieve the purpose of both reducing dark shadows and increasing brightness.

[0057] like Figure 4 and Figure 6 As shown, in some embodiments, a light strip 2 is provided on one side of the light guide plate 31, and the light strip 2 includes a light board 21 and lamp beads 22 arranged on the light board 21, the lamp beads 22 face the light incident surface 302, and the gap between the light incident surface 302 and the lamp beads 22 along the optical axis direction of the lamp beads 22 is 0 to 0.3 mm.

[0058] When the gap between the lamp bead 22 and the light input surface 302 along the direction of the optical axis is large, part of the first light emitted by the lamp bead 22 leaks out from the above gap, causing the double-sided display 100 to leak light. The gap between the light input surface 302 and the lamp bead 22 along the optical axis of the lamp bead 22 can be set to, for example, 0.1mm, 0.15mm, or 0.2mm, etc., to meet the above range, so that as much first light emitted by the lamp bead 22 as possible can enter the light input surface 302, thereby reducing light loss and improving the display effect.

[0059] like Figure 2 As shown, in some embodiments, the supporting frame 1 includes a first frame 11 and a second frame 12, the first frame 11 and the second frame 12 are connected to form a accommodating cavity 10, the first frame 11 and the second frame 12 are detachably connected, and the light bar 2 is arranged on the first frame 11 and / or the second frame 12.

[0060] The first frame 11 and the second frame 12 are detachably connected, so that the carrying frame 1 and the light bar 2 can be easily disassembled, assembled and repaired.

[0061] The above-mentioned detachable connection can be a snap connection or a screw connection through a fastener, etc., which is not specifically limited here.

[0062] Specifically, Figure 2 As shown, the display panel 4 is rectangular, the first frame 11 can be strip-shaped, the second frame 12 can be U-shaped or approximately U-shaped, and the first frame 11 and the second frame 12 are connected, so that the carrier frame 1 is an annular rectangle as a whole. Usually, the first frame 11 is strip-shaped and is located on one side of the length direction of the display panel 4. The light bar 2 can be set on the first frame 11. In this way, not only can the display requirements be met, but the structure is also simple.

[0063] Of course, the light bar 2 may be provided not only on the first frame 11 but also on at least one inner wall of the second frame 12, or the light bar 2 may be provided only on the second frame 12. In this way, the number of light bars 2 is increased, which is beneficial to improving the display brightness.

[0064] It should be noted that the light bar 2 is provided on the second frame 12, including providing the light bar 2 on one side wall of the second frame 12, or providing the light bar 2 on two opposite side walls, or providing the light bar 2 on all side walls, which is not specifically limited here.

[0065] like Figure 2 As shown, in some embodiments, the second frame 12 can be integrally formed to form an overall U-shaped or approximately U-shaped profile. In other embodiments, the second frame 12 can also be composed of three strip frames connected, or two L-shaped frames connected, or other numbers of strips and L-shaped frames, which are not specifically limited here.

[0066] like Figure 4 As shown, in some embodiments, the first frame 11 includes a first side wall 111, a second side wall 112, and a third side wall 113, the first side wall 111 is connected between the second side wall 112 and the third side wall 113, the first side wall 111, the second side wall 112, and the third side wall 113 are perpendicular to each other, the light bar 2 is arranged on the first side wall 111, and the light guide plate assembly 3 is fixed on the inner wall of the second frame 12.

[0067] Through the above-mentioned arrangement, the second side wall 112 and the third side wall 113 can not only block the first light emitted by the light bar 2, but also reduce the probability of the first light being emitted out of the supporting frame 1 and causing light leakage in the double-sided display 100; moreover, the second side wall 112 and the third side wall 113 can provide bearing capacity for the display panel 4, thereby facilitating the installation of the display panel 4.

[0068] Specifically, the first side wall 111 is vertically arranged on one side edge of the second side wall 112 and the third side wall 113. The first side wall 111, the second side wall 112, and the third side wall 113 can form a receiving groove with an opening. In the cross section perpendicular to the extension direction of the first frame 11, the cross-sectional profile of the receiving groove is U-shaped or approximately U-shaped. The first side wall 111 is the bottom wall of the receiving groove, and the second side wall 112 and the third side wall 113 are the side walls of the receiving groove. The opening of the receiving groove is arranged toward the light-incoming surface 302 so that the light-emitting side of the light bar 2 faces the light-incoming surface 302. That is to say, the light bar 2 is arranged on the bottom wall of the receiving groove. In this way, not only the side walls of the receiving groove, that is, the second side wall 112 and the third side wall 113, can block the first light emitted by the light bar 2, thereby helping to reduce the probability of light leakage, but also the space utilization rate of the receiving cavity 10 of the supporting frame 1 is improved, and it is beneficial to improve the installation accuracy of the display panel 4.

[0069] The light guide plate assembly 3 can be fixed to the inner wall of the second frame 12 by a rubber frame. When the light guide plate assembly 3 is installed, a certain installation gap is reserved between the end surface of the light guide plate 31 and the inner wall of the corresponding second frame 12, and then a rubber frame is arranged in the installation gap to fix the light guide plate assembly 3 to the inner wall of the second frame 12, so that the light guide plate assembly 3 is fixedly connected to the second frame 12. Usually, the installation gap between the end surface of the light guide plate 31 and the inner wall of the corresponding second frame 12 ranges from 0.5 mm to 1.5 mm. For example, the installation gap between the end surface of the light guide plate 31 and the inner wall of the corresponding second frame 12 can be 0.75 mm, 1 mm, or 1.25 mm.

[0070] like Figure 4 As shown, along the thickness direction of the display panel 4 (such as Figure 4In the direction indicated by arrow X), the second side wall 112 and the third side wall 113 overlap with the light guide plate assembly 3. In this way, the probability of light leakage can be further reduced, thereby improving the display effect.

[0071] In some embodiments, the inner surfaces of the second side wall 112 and the third side wall 113 can be provided with a reflective film or coated with a reflective coating (not shown), so that the second side wall 112 and the third side wall 113 can be used to reflect the first light emitted by the light bar 2 onto the light-incoming surface 302, thereby increasing the first light irradiated on the light-incoming surface 302, thereby improving the display brightness.

[0072] like Figure 3 to Figure 5 As shown, in some embodiments, a portion of the edge of the display panel 4 is fixedly connected to the second frame 12 , and another portion of the edge of the display panel 4 is connected to the first frame 11 via the foam 13 .

[0073] By fixedly connecting a portion of the edge of the display panel 4 to the second frame 12, the display panel 4 is firmly connected to the supporting frame 1; another portion of the edge of the display panel 4 is connected to the first frame 11 through the foam 13, so that the display panel 4 and the first frame 11 are detachable, thereby facilitating the disassembly and assembly of the second frame 12. In addition, the user can select the thickness of the foam 13 according to the installation error between the display panel 4 and the second frame 12 along the thickness direction of the display panel 4, thereby improving the installation accuracy of the display panel 4.

[0074] The display panel 4 includes a display area and a non-display area arranged around the display area, and the display panel 4 is rectangular.

[0075] Among them, a part of the edge of the display panel 4 is fixedly connected to the second frame 12, and the three sides of the non-display area of ​​the display panel 4 correspond one to one with the three sides of the second frame 12, and are respectively fixedly connected by double-sided tape 14 or glue, so that the main part of the display panel 4 is fixed relative to the supporting frame 1.

[0076] Among them, the other side of the edge of the non-display area of ​​the display panel 4 (usually a side with a circuit board) is connected to the first frame 11 through the foam 13. Specifically, the first frame 11 is strip-shaped, that is, the second side wall 112 and the third side wall 113 are both strip-shaped. One of the two display panels 4 is connected to the second side wall 112 of the first frame 11 through the foam 13, and the other display panel 4 is connected to the third side wall 113 of the first frame 11 through the foam 13. In this way, the foam 13 can not only play the role of supporting the display panel 4, thereby improving the installation accuracy of the display panel 4, but also the foam 13 has a certain elasticity, which can reduce the shaking of the display panel 4 during the transportation or use of the double-sided display 100, thereby playing a buffering and shock-absorbing role, thereby improving the reliability of the double-sided display 100.

[0077] like Figure 4 As shown, in some embodiments, the thickness of the foam 13 ( Figure 4 The dimension in the direction indicated by the arrow X is 0.4 mm to 0.9 mm.

[0078] The thickness of the foam 13 is an important parameter in the installation process of the display panel 4. When the thickness is small, the supporting force of the foam 13 is small, which causes the display panel 4 to tilt and the installation flatness is low; when the thickness is large, the supporting force of the foam 13 is large, which also causes the display panel 4 to tilt and the installation flatness is low; the thickness of the foam 13 is selected within the above range, and the user can select the thickness of the foam 13 according to the thickness of the double-sided tape 14 between the display panel 4 and the second frame 12. For example, the thickness of the foam 13 can be 0.4mm, 0.5mm, 0.55mm, 0.6mm, 0.65mm, 0.7mm, or 0.8mm, etc., which is not only beneficial to improving the installation flatness of the display panel 4, but also plays a good role in supporting and buffering shock absorption, thereby improving the reliability of the double-sided display 100.

[0079] like Figure 3 As shown, in some embodiments, two light guide plates 31 correspond to two display panels 4 one by one, and an optical film 33 is disposed between the light guide plate 31 and the corresponding display panel 4 .

[0080] By setting an optical film 33 between the light guide plate 31 and the corresponding display panel 4, the user can select one or more optical films 33 that meet the display effect according to the optical property requirements of the double-sided display 100, thereby facilitating improving the light output display effect of the double-sided display 100.

[0081] The optical film 33 can also be called an optical film, which can be classified into the following types according to its usage, characteristics and application: reflective film, anti-reflective film / anti-reflective film, filter / film, polarizer / film, compensation film / phase difference plate, alignment film, diffusion film / sheet, brightness enhancement film / prism sheet / condenser sheet, shading film / black and white film, etc. Related derivative types include optical grade protective film, window film, etc. Users can select at least one type according to actual needs, and no specific limitation is made here.

[0082] Embodiment 2

[0083] like Figure 7 As shown, the present application further provides a display device, including a base 200 and the double-sided display 100 in the first embodiment, wherein the double-sided display 100 is disposed on the base 200 .

[0084] By arranging the light guide plate assembly 3 and the light bar 2 on the side wall of the accommodating cavity 10 of the carrier frame 1, the light emitting side of the light bar 2 faces the light inlet surface 302 of the light guide plate assembly 3, and then arranging the two display panels 4 on the carrier frame 1, the two display panels 4 correspond to the two light emitting surfaces 301 of the light guide plate assembly 3 one by one, and the light emitting direction of the display panel 4 is the same as the light emitting direction of the corresponding light emitting surface 301, so that not only the first light rays from the two light emitting surfaces are displayed after passing through the corresponding display panels 4, thereby realizing double-sided display, but also, the present application arranges the light bar 2 on the side wall of the accommodating cavity 10, so that the light bar 2 is located on the side of the light guide plate assembly 3 to provide a side-emitting light source for the two display panels 4, thereby reducing the size of the double-sided display 100 in the thickness direction, so that the double-sided display 100 can achieve the purpose of being both thin and light and cost-effective. The display device can be placed on a desktop or on the ground through the base 200.

[0085] The double-sided display 100 in the second embodiment has the same structure as the double-sided display 100 in the first embodiment, and will not be described in detail herein.

[0086] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A double-sided display, characterized in that: include: A carrying frame (1) having a receiving cavity (10); A light bar (2) is arranged on a side wall of the accommodating cavity (10); A light guide plate assembly (3) is arranged on the side wall of the accommodating cavity (10), the light guide plate assembly (3) having two light emitting surfaces (301) facing each other, and a light inlet surface (302) arranged between the two light emitting surfaces (301), the light emitting side of the light bar (2) facing the light inlet surface (302), so that the first light emitted by the light bar (2) passes through the light inlet surface (302) and then is emitted from the two light emitting surfaces (301); Two display panels (4), the display panels (4) being arranged on the carrier frame (1), the two display panels (4) corresponding one to the two light emitting surfaces (301), the light emitting sides of the display panels (4) respectively facing away from the light emitting surfaces (301) corresponding to them respectively, and the light emitting direction of the display panels (4) being the same as the light emitting direction of the light emitting surfaces (301) corresponding to them respectively.

2. The double-sided display according to claim 1, characterized in that: The light guide plate assembly (3) comprises: two light guide plates (31), and a reflective member (32) sandwiched between the two light guide plates (31); a surface of the light guide plate (31) close to the reflective member (32) is a dot surface (303); a surface of the light guide plate (31) away from the reflective member (32) is a light emitting surface (301); a side surface connected between the light emitting surface (301) and the dot surface (303) is a light input surface (302); the light input surface (302) intersects with the light emitting surface (301); and the light input surface (302) is capable of receiving the first light.

3. The double-sided display according to claim 2, characterized in that: The light-incoming surface (302) is perpendicular to the light-emitting surface (301).

4. The double-sided display according to claim 2, characterized in that: The thickness of the light guide plate (31) ranges from 1.5 mm to 6 mm; And / or, the light guide plate (31) is a tempered glass light guide plate.

5. The double-sided display according to any one of claims 2 to 4, characterized in that: The edge of the light guide plate (31) along a first direction protrudes from the edge of the display area of ​​the display panel (4) by 1 mm to 3 mm, and the first direction is perpendicular to the thickness direction of the light guide plate (31); And / or, the edge of the light guide plate (31) along the second direction protrudes from the edge of the display area of ​​the display panel (4) by 1 mm to 3 mm, and the second direction, the first direction, and the thickness direction of the light guide plate (31) are perpendicular to each other.

6. The double-sided display according to any one of claims 2 to 4, characterized in that: The light bar (2) is provided on one side of the light guide plate (31), the light bar (2) comprising a light board (21) and lamp beads (22) arranged on the light board (21), the lamp beads (22) facing the light-incoming surface (302), and a gap between the light-incoming surface (302) and the lamp beads (22) along the optical axis direction of the lamp beads (22) is 0 to 0.3 mm; And / or, the two light guide plates (31) correspond to the two display panels (4) one by one, and an optical film (33) is provided between the light guide plate (31) and the corresponding display panel (4).

7. The double-sided display according to any one of claims 1 to 4, characterized in that: The carrying frame (1) comprises a first frame (11) and a second frame (12); the first frame (11) and the second frame (12) are connected to form the accommodating cavity (10); the first frame (11) and the second frame (12) are detachably connected; and the light bar (2) is arranged on the first frame (11) and / or the second frame (12).

8. The double-sided display according to claim 7, characterized in that: The first frame (11) comprises a first side wall (111), a second side wall (112), and a third side wall (113); the first side wall (111) is connected between the second side wall (112) and the third side wall (113); the first side wall (111), the second side wall (112), and the third side wall (113) are perpendicular to each other; the light bar (2) is arranged on the first side wall (111); and the light guide plate assembly (3) is fixed on the inner wall of the second frame (12).

9. The double-sided display according to claim 7, characterized in that: A portion of the edge of the display panel (4) is bonded to the second frame (12), and another portion of the edge of the display panel (4) is connected to the first frame (11) via foam (13).

10. A display device, characterized in that: include: Base(200); The double-sided display (100) according to any one of claims 2 to 9, wherein the double-sided display is arranged on the base (200).

Images