Light guide assembly, display screen frame, double-sided display module and display equipment

Abstract

The invention discloses a light guide assembly, a display screen frame, a double-face display module and display equipment, and relates to the technical field of display equipment, the light guide assembly is used for the double-face display module, the light guide assembly comprises two light guide plates and two optical films, the two light guide plates are oppositely arranged and mutually supported, and the two optical films are arranged on the two light guide plates. One side, deviating from the other light guide plate, of the light guide plate forms a light-emitting surface, one side, deviating from the light-emitting surface, of the light guide plate is provided with a reflecting part, and the two optical films are respectively supported on the light-emitting surfaces of the two light guide plates. According to the technical scheme, the two light guide plates support each other, then the light guide plates support the optical film and the reflection part, compared with an existing double-face display screen, the double-face display screen does not need to be supported through a back plate, the overall structure is thinner, and the weight is lighter.

Description

Technical Field

[0001] The present invention relates to the technical field of display devices, and in particular to a light guide component, a display screen frame, a double-sided display module and a display device. Background Art

[0002] With the continuous advancement of science and technology, display technology is also constantly developing. Traditional display devices can usually only display on one side, which cannot meet the needs of some specific scenarios. Although the double-sided displays on the current market can achieve double-sided display functions, there are still many deficiencies in structural design. For example, its light guide components such as light guide plates, optical films and reflective sheets are supported in the frame by the backplane, and each light guide component of the double-sided display screen often requires two, and the backplane also requires two, resulting in the overall double-sided display screen being relatively thick. Summary of the invention

[0003] The main purpose of the present invention is to provide a light guide assembly, a display screen frame, a double-sided display module and a display device, aiming to at least solve the technical problem of the double-sided display being relatively thick in the related art.

[0004] To achieve the above object, the present invention provides a light guide assembly for a double-sided display module, comprising:

[0005] Two light guide plates, the two light guide plates are arranged opposite to each other and support each other, a side of the light guide plate facing away from the other light guide plate constitutes a light emitting surface, and a reflective portion is arranged on a side of the light guide plate facing away from its light emitting surface; and

[0006] The two optical films are respectively supported on the light emitting surfaces of the two light guide plates.

[0007] In one embodiment, the two light guide plates are fixedly connected to each other.

[0008] In one embodiment, the light guide assembly further includes an interlayer disposed between the two light guide plates to fixedly connect opposite sides of the two light guide plates.

[0009] In one embodiment, the reflective portion includes a reflective coating.

[0010] In one embodiment, a side of the light guide plate facing away from the light emitting surface thereof is screen-printed with reflective ink to form the reflective coating.

[0011] In one embodiment, a light shielding portion is provided on the peripheral side of the light guide plate.

[0012] The present invention further provides a display screen frame, comprising a frame body, wherein the frame body has a receiving cavity communicating with two sides thereof in a thickness direction, and the receiving cavity is used for installing the above-mentioned light guide assembly.

[0013] At least two opposite inner sides of the frame body are provided with first installation grooves, and the first installation grooves are communicated with the accommodating cavity so as to allow the light guide assembly to be slidably installed in the accommodating cavity.

[0014] In one embodiment, two support portions are convexly disposed on the inner side of the frame body and are spaced apart in the thickness direction, and the space between the two support portions constitutes the first mounting groove.

[0015] In one embodiment, opposite sides of the two support portions are used for panel installation.

[0016] In one embodiment, a buffer pad is disposed inside the first mounting groove.

[0017] In one embodiment, the buffer pad comprises a silicone pad; and / or,

[0018] The buffer pad is embedded in a side of the first installation groove facing the accommodating cavity.

[0019] In one embodiment, the thickness direction of the frame body is a first direction;

[0020] The frame body comprises a first frame and a second frame, the first frame comprises a main body and two side portions, the main body and the second frame are arranged opposite to each other in a second direction, the two side portions are respectively connected to two ends of the main body and are detachably connected to the second frame, and the main body, the two side portions and the second frame enclose the accommodating cavity;

[0021] The first mounting groove is disposed on the inner side of the side portion and is connected to an end of the side portion away from the main body portion.

[0022] In one embodiment, the first mounting groove is disposed inside the main body.

[0023] In one embodiment, the main body and the two side portions are integrally formed.

[0024] In one embodiment, two ends of the main body are bent toward the second frame to form the two side portions.

[0025] In one embodiment, a second mounting groove communicating with the accommodating cavity is disposed on the inner side of the second frame, and the second mounting groove is used for the light guide assembly to be installed toward one end of the second frame.

[0026] In one embodiment, two ends of the second frame are provided with sliding fitting parts, and the two sliding fitting parts are respectively slidably fitted with the first installation grooves of the two side portions.

[0027] The present invention also provides a double-sided display module, which includes a light guide component and a display screen frame;

[0028] The light guide assembly comprises:

[0029] Two light guide plates, the two light guide plates are arranged opposite to each other and support each other, a side of the light guide plate facing away from the other light guide plate constitutes a light emitting surface, and a reflective portion is arranged on a side of the light guide plate facing away from its light emitting surface; and

[0030] Two optical films, respectively supported on the light emitting surfaces of the two light guide plates;

[0031] The display screen frame comprises a frame body, and the frame body has a receiving cavity communicating with two sides thereof in a thickness direction;

[0032] Wherein, the light guide assembly is installed in the accommodating cavity.

[0033] In one embodiment, at least two opposite inner sides of the frame body are provided with first mounting grooves, and the first mounting grooves are communicated with the accommodating cavity, so as to allow the light guide assembly to be slidably mounted in the accommodating cavity;

[0034] The thickness direction of the frame body is a first direction;

[0035] The frame body comprises a first frame and a second frame, the first frame comprises a main body and two side portions, the main body and the second frame are arranged opposite to each other in a second direction, the two side portions are respectively connected to two ends of the main body and are detachably connected to the second frame, and the main body, the two side portions and the second frame enclose the accommodating cavity;

[0036] The first mounting groove is arranged at the inner side of the side portion and is connected to an end of the side portion away from the main body portion;

[0037] A second mounting groove communicating with the accommodating cavity is provided on the inner side of the second frame, and the second mounting groove is used for the light guide assembly to be installed toward one end of the second frame;

[0038] The double-sided display module also includes a light bar arranged in the second mounting groove.

[0039] In one embodiment, the light bar comprises:

[0040] a substrate, disposed in the second mounting groove; and

[0041] Two groups of light emitting chips are arranged on a side of the substrate facing the light guide assembly, and each group of light emitting chips is arranged corresponding to one light guide plate.

[0042] In one embodiment, two side walls of the second mounting groove in the first direction are provided with long slide grooves, and at least one end of the long slide groove is connected to the end of the second frame;

[0043] The two ends of the base plate in the first direction are respectively slidably disposed in the two long sliding grooves.

[0044] In one embodiment, a thermal pad is disposed in the second mounting groove and is thermally connected to the light bar.

[0045] The present invention further provides a display device, which includes the above-mentioned double-sided display module.

[0046] In the technical solution of the present invention, the light guide assembly includes two light guide plates and two optical films, the two light guide plates are arranged opposite to each other and support each other, the side of the light guide plate facing away from the other light guide plate constitutes a light emitting surface, the side of the light guide plate facing away from its light emitting surface is provided with a reflecting portion, and the two optical films are respectively supported on the light emitting surfaces of the two light guide plates; in this arrangement, the optical films and the reflecting portions are supported by the light guide plates through the mutual support of the two light guide plates. Compared with the existing double-sided display screen, there is no need for support through a back plate, and the overall structure is thinner and lighter. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, 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 invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0048] Figure 1 A schematic diagram of a three-dimensional exploded structure of an embodiment of a double-sided display module provided by the present invention;

[0049] Figure 2 A schematic structural diagram of an embodiment of a light guide assembly provided by the present invention;

[0050] Figure 3 A schematic structural diagram of an embodiment of a display screen frame provided by the present invention;

[0051] Figure 4 for Figure 3 A schematic diagram of the structure of the first frame in FIG.

[0052] Figure 5 for Figure 3 A schematic diagram of the installation structure of the first frame and the light guide assembly;

[0053] Figure 6 for Figure 3 A schematic diagram of the enlarged structure of part A;

[0054] Figure 7 for Figure 3 A schematic diagram of the installation structure of the second frame and the light guide assembly;

[0055] Figure 8 for Figure 3 A schematic diagram of the structure of the second frame in FIG.

[0056] Fig. 9 for Figure 3 A schematic diagram of the installation structure of the second frame and the light bar;

[0057] Fig.10 for Figure 1 Schematic diagram of the light bar structure.

[0058] Description of Figure Numbers:

[0059] 1000, double-sided display module; 100, light guide assembly; 200, display screen frame; 1, light guide plate; 11, reflective portion; 12, interlayer; 2, optical film; 3, frame body; 301, first frame; 3011, main body; 3012, side portion; 302, second frame; 3021, second mounting groove; 3022, sliding fitting portion; 31, first mounting groove; 32, supporting portion; 33, buffer pad; 4, light bar; 41, substrate; 42, light-emitting chip; 5, panel; 6, thermal pad; 7, circuit board; 8, protective cover.

[0060] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0061] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0062] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0063] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0064] With the continuous advancement of science and technology, display technology is also constantly developing. Traditional display devices can usually only display on one side, which cannot meet the needs of some specific scenarios. Although the double-sided displays on the current market can achieve double-sided display functions, there are still many deficiencies in structural design. For example, its light guide components such as light guide plates, optical films and reflective sheets are supported in the frame by the backplane, and each light guide component of the double-sided display screen often requires two, and the backplane also requires two, resulting in the overall double-sided display screen being relatively thick.

[0065] The main purpose of the present invention is to provide a light guide assembly, a display screen frame, a double-sided display module and a display device, aiming to at least solve the technical problem of the double-sided display being relatively thick in the related art.

[0066] See also Figure 1 and Figure 2 In one embodiment of the present invention, the light guide assembly 100 is used for a double-sided display module 1000, and the light guide assembly 100 includes two light guide plates 1 and two optical films 2. The two light guide plates 1 are arranged opposite to each other, and the side of the light guide plate 1 facing away from the other light guide plate 1 constitutes a light emitting surface. The side of the light guide plate 1 facing away from its light emitting surface is provided with a reflective portion 11, and the two optical films 2 are respectively supported on the light emitting surfaces of the two light guide plates 1.

[0067] In the technical solution of the present invention, the light guide assembly 100 includes two light guide plates 1 and two optical films 2, the two light guide plates 1 are arranged opposite to each other, the side of the light guide plate 1 facing away from the other light guide plate 1 constitutes a light emitting surface, the side of the light guide plate 1 facing away from its light emitting surface is provided with a reflecting portion 11, and the two optical films 2 are respectively supported on the light emitting surfaces of the two light guide plates 1; with such an arrangement, the optical films 2 and the reflecting portion 11 are supported by the mutual support of the two light guide plates 1 and then by the light guide plate 1, compared with the existing double-sided display screen, there is no need for support through a back plate, and the overall structure is thinner and lighter.

[0068] Among them, there are many materials for the light guide plate 1. The light guide plate 1 can be a glass light guide plate 1 or an acrylic light guide plate 1. In comparison, the glass light guide plate 1 has better rigidity and hardness, while the acrylic light guide plate 1 has better light transmittance. The present design does not limit the specific material of the light guide plate 1, and it can be selected according to actual needs.

[0069] It is understandable that one side of the light guide plate 1 is used to receive light from the light bar 4, and then the light is reflected to the light exiting surface of the light guide plate 1 through the reflecting portion 11. In this process, the light cannot be completely emitted through the light exiting surface of the light guide plate 1, and some light will be emitted from other sides of the light guide plate 1, which will cause light leakage and affect the visual effect. Therefore, in an embodiment of the present invention, a shading portion is provided on the peripheral side of the light guide plate 1, and the shading portion is used to reduce the light from the side of the light guide plate 1, thereby reducing the possibility of light leakage.

[0070] The shading portion may be in various forms, which may be a black tape attached to the side of the light guide plate 1 , or a black ink layer silk-screened on the side of the light guide plate 1 , and the present application does not impose any limitation on this.

[0071] Although the two light guide plates 1 support each other, they can also be fixed together or separately set; when the two light guide plates 1 are separately set, the installation of the entire light guide assembly 100 into the display screen frame 200 needs to be carried out twice, which is more troublesome. At the same time, the light guide plates 1 are deformed during actual use. Although the two light guide plates 1 are separately set, they can also support the other when deformed, but the overall ability to resist deformation is weak. In an embodiment of the present invention, the two light guide plates 1 are fixedly connected to each other; by fixing the two light guide plates 1 together, the rigidity of the entire light guide assembly 100 can be increased, and the ability to resist deformation is stronger, and it can also be more convenient during installation.

[0072] After the two light guide plates 1 are fixed, it will be easier to set the light shading part. The light shading part can be completed at one time regardless of whether it is in the form of tape or black ink. If the two light guide plates 1 are not fixed, it is often necessary to stick tape or screen-print a black ink layer on the two light guide plates 1 twice; that is, fixing the two light guide plates 1 will also increase the formation efficiency of the light shading part.

[0073] There are many ways to fix the two light guide plates 1. They can be fixed by screws or by glue. The glue fixing method can be fixed by applying glue on the sides or by applying glue between the two light guide plates 1. It is understandable that since the two light guide plates 1 need to support each other, that is, the sides of the two light guide plates 1 opposite to the light emitting surface are in a fitted state, if the side coating glue is used for fixing, when the light guide plates 1 are deformed, relative friction may occur between the two reflective parts 11, thereby causing damage to the reflective parts 11. When the screw fixing method is used, when the deformation degrees of the two light guide plates 1 are inconsistent, the rigid screws may damage the light guide plates 1. Therefore, in the embodiments of the present invention, please refer to Figure 2 The light guide assembly 100 further includes an interlayer 12 disposed between the two light guide plates 1 to fix the opposite sides of the two light guide plates 1. Thus, by fixing the two light guide plates 1 with the interlayer 12 disposed between them, the strength of the entire light guide assembly 100 can be increased. At the same time, when the light guide plates 1 are deformed, the interlayer 12 can play a certain buffering role, thereby reducing the possibility of damage to the light guide plates 1 and the reflective portion 11.

[0074] In the related art, the reflecting part 11 is usually in the form of a reflecting sheet, which itself has a certain thickness and needs to be coated with glue when fixed to the light guide plate 1, and the glue occupies a certain thickness; in order to further reduce the thickness of the entire light guide component 100, in an embodiment of the present invention, the reflecting part 11 includes a reflective coating; the reflecting part 11 is formed in the form of a coating, which is thinner than the existing reflecting sheet, and does not require additional glue to fix it, thereby making the thickness of the entire light guide component 100 smaller.

[0075] The reflective coating may be formed in a variety of ways, such as silk-screen printing or spraying. In the present embodiment, the side of the light guide plate 1 away from its light emitting surface is silk-screened with reflective ink to form the reflective coating.

[0076] In order to ensure the reflective effect of the reflective coating, the reflective ink is white or light-colored ink; preferably, white ink is used for better reflective effect.

[0077] The present invention further provides a display screen frame 200 , which includes a frame body 3 . The frame body 3 has a receiving cavity communicating with two sides thereof in a thickness direction, and the receiving cavity is used for installing the above-mentioned light guide assembly 100 .

[0078] In the technical solution of the embodiment of the present invention, the light guide component 100 is supported by the two light guide plates 1, and the optical film 2 and the reflective part 11 are supported by the light guide plate 1. Compared with the existing double-sided display screen, there is no need to support it through a back plate, and the overall structure is thinner and lighter. At the same time, for the display screen, the display screen frame 200 needs to completely cover the light guide component 100. The thinner the light guide component 100 is, the thinner the display screen frame 200 will be, and the lighter the weight will be, thereby further reducing the weight of the double-sided display module 1000.

[0079] In order to install the light guide assembly 100 in the accommodating cavity, in the embodiment of the present invention, please refer to Figures 3 to 5 , at least two opposite inner sides of the frame body 3 are provided with first mounting grooves 31, and the first mounting grooves 31 are connected to the accommodating cavity, so as to allow the light guide assembly 100 to be slidably installed in the accommodating cavity. The existing display frame 200 fixes the light guide assembly 100 in the form of a middle frame, and in the embodiment of the present invention, the light guide assembly 100 is fixed by providing the first mounting grooves 31 on the frame body 3, without the need to add an additional middle frame structure, so that the overall display frame 200 can be thinner and lighter; at the same time, the provision of the first mounting grooves 31 can play a positioning role in the installation of the light guide assembly 100, making the installation of the light guide assembly 100 easier.

[0080] There are many ways to form the first mounting groove 31, which can be directly formed by digging a groove on the inner side of the frame body 3. It is understandable that the frame body 3 needs a certain thickness to ensure its strength. If it is formed by digging a groove, in order to ensure its strength, the frame body 3 itself will be thicker, which will increase the weight of the display screen frame 200. In the embodiment of the present invention, the inner side of the frame body 3 is provided with two support portions 32 arranged at intervals in the thickness direction, and the interval between the two support portions 32 constitutes the first mounting groove 31; in this way, by protruding two support portions 32 on the inner side of the frame body 3, the two support portions 32 form the first mounting groove 31 to install the light guide assembly 100. Although the support portion 32 is additionally provided, other parts of the frame body 3 do not need to be provided very thick, which will reduce the weight of the overall display screen frame 200.

[0081] Moreover, the opposite sides of the two support parts 32 are used for installing the panel 5 , and no additional structure is needed to install the panel 5 , thereby achieving lightness and thinness.

[0082] It can be seen from the above that the light guide assembly 100 will be deformed during actual use. In order to prevent the light guide assembly 100 from being damaged by a rigid collision with the frame body 3 during the deformation process, in an embodiment of the present invention, a buffer pad 33 is provided on the inner side of the first mounting groove 31; the buffer pad 33 is used to buffer the light guide assembly 100 installed in the first mounting groove 31 to reduce the possibility of damage.

[0083] The buffer pad 33 may be made of various materials, such as sponge, silica gel, etc.

[0084] Specifically, in order to keep the buffer pad 33 fixed in the first mounting groove 31, in the present embodiment, the buffer pad 33 is embedded in the first mounting groove 31 on the side facing the accommodating cavity. Compared with other fixing methods, such as bonding, bonding requires glue to form a glue layer. While ensuring that the installation space of the first mounting groove 31 for the light guide component 100 remains unchanged, the existence of the glue layer will increase the size of the entire display frame 200, and the first mounting groove 31 itself is relatively small, and remains unchanged when the glue is applied. For another example, in the screw fixing method, in order to avoid a rigid collision between the screw and the light guide component 100, the thickness of the buffer pad 33 needs to be increased. Based on the same principle as the glue fixing, the size of the display frame 200 will also be increased, which is not conducive to a lightweight setting.

[0085] Of course, when the buffer pad 33 is embedded, the buffer pad 33 is preferably made of elastic materials with a certain strength, such as a silicone pad or a rubber pad. The essence of embedding is equivalent to making grooves on the frame body 3. Under the possibility that the size of the frame body 3 remains unchanged, the silicone pad and the rubber pad can play a certain supporting role, and will not have much impact on the strength of the frame body 3.

[0086] In order to install the light guide assembly 100 into the accommodating cavity, in the embodiment of the present invention, please continue to refer to Figure 6 and Figure 7, the thickness direction of the frame body 3 is the first direction; the frame body 3 includes a first frame 301 and a second frame 302, the first frame 301 includes a main body 3011 and two side portions 3012, the main body 3011 and the second frame 302 are arranged opposite to each other in the second direction, the two side portions 3012 are respectively connected to the two ends of the main body 3011 and are detachably connected to the second frame 302, the main body 3011, the two side portions 3012 and the second frame 302 are enclosed to form the accommodating cavity; the first mounting groove 31 is arranged on the inner side of the side portion 3012, and is connected to one end of the side portion 3012 away from the main body 3011. With such a configuration, the first frame 301 is in a U-shape as a whole. Before installing the light guide assembly 100, the second frame 302 and the first frame 301 are separated. After the light guide assembly 100 is slid into the first frame 301 through the first mounting grooves 31 on the two side portions 3012, the main body 3011 and the two side portions 3012 can support the light guide assembly 100 in three directions. Even without the support of the second frame 302 for the light guide assembly 100, the light guide assembly 100 can remain stable. Then, the second frame 302 and the two side portions 3012 only need to be fixed to complete the installation of the light guide assembly 100. Compared with other methods, such as dividing the frame body 3 into four side portions, and gradually installing the four side portions with the surrounding sides of the light guide assembly 100, this is obviously easier.

[0087] In order to facilitate the assembly of the second frame 302 and the first frame 301, in the embodiment of the present invention, please refer to Figure 6 , two ends of the second frame 302 are provided with sliding fitting parts 3022, and the two sliding fitting parts 3022 are respectively slidably fitted with the first mounting grooves 31 of the two side parts 3012. In this way, when the second frame 302 is installed with the first frame 301, it is only necessary to insert the sliding fitting parts 3022 at the two ends of the second frame 302 into the two first mounting grooves 31 respectively, and the second frame 302 is positioned by the first mounting grooves 31 of the first frame 301 itself, without the need to set other positioning structures on the first frame 301, which is convenient for installation and saves costs.

[0088] The side wall of the first mounting groove 31 can support the light guide assembly 100 and shield the side of the light guide assembly 100. In order to improve the stability of the installation of the light guide assembly 100, in the embodiment of the present invention, the first mounting groove 31 is provided inside the main body 3011. In this way, the stability of the installation of the light guide assembly 100 can be improved, and the side of the light guide assembly 100 can be shielded by the main body 3011 to reduce the possibility of light leakage.

[0089] Please continue to refer to Figure 7 , Figure 8 and Fig. 9 The inner side of the second frame 302 is provided with a second mounting groove 3021 connected to the accommodating cavity, and the second mounting groove 3021 is used for the light guide assembly 100 to be installed toward one end of the second frame 302. The setting of the second mounting groove 3021 can also play a role in supporting and shielding the light guide assembly 100, and in actual assembly, the light guide assembly 100 is first assembled with the first frame 301, and then the second frame 302 is assembled with the first frame 301 and the light guide assembly 100. The setting of the second mounting groove 3021 can play a role in positioning the installation of the second frame 302, making the assembly more convenient and quick.

[0090] There are many ways to form the first frame 301. The main body 3011 and the two side portions 3012 can be produced separately and then fixed to form, or they can be integrally formed. In this embodiment, the main body 3011 and the two side portions 3012 are integrally formed. In this way, when assembling the frame body 3, there is no need to assemble the main body 3011 and the two side portions 3012, which can effectively improve the assembly efficiency.

[0091] There are many ways of one-piece molding, such as injection molding, but since the first frame 301 is U-shaped as a whole, and the first mounting groove 31 is also provided on the inner side of the side portion 3012 and the main body 3011, the overall structure is irregular, the injection molding method is relatively complicated, and the mold development cost is very high. In addition, for different display devices, the size of the display frame 200 is not consistent, that is, the size of the first frame 301 is not consistent, which often leads to the need to develop multiple sets of molds, which is too costly. In an embodiment of the present invention, the two ends of the main body 3011 are bent toward the second frame 302 to form the two side portions 3012. It is only necessary to produce the longer main body 3011 and then bend the two ends to form the first frame 301, and the first frame 301 of any size can be formed, which greatly reduces the cost.

[0092] Specifically, the longer main body 3011 is formed by injection molding and extrusion molding. For injection molding, although a very long main body 3011 can be formed by direct injection molding, and then the first frame 301 of various sizes can be formed by bending and cutting, the mold itself will be very long, occupying more space, and there will be waste each time it is cut, which increases the cost. Therefore, in an embodiment of the present invention, it is preferred to adopt extrusion molding. According to the required length of the first frame 301, the main body 3011 of the corresponding length is directly extruded and then bent, which saves cost and is convenient and quick.

[0093] The present invention further proposes a double-sided display module 1000, which includes a light guide component 100 and a display screen frame 200. The specific structures of the light guide component 100 and the display screen frame 200 refer to the above embodiments. Since the double-sided display module 1000 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0094] In the technical solution of the embodiment of the present invention, the light guide component 100 is supported by the two light guide plates 1, and the optical film 2 and the reflective part 11 are supported by the light guide plate 1. Compared with the existing double-sided display screen, there is no need to support it through a back plate, and the overall structure is thinner and lighter. At the same time, for the display device, the display screen frame 200 needs to completely cover the light guide component 100. The thinner the light guide component 100 is, the thinner the display screen frame 200 will be, and the lighter the weight will be, thereby further reducing the weight of the double-sided display module 1000 and realizing the lightweight design of the double-sided display module 1000.

[0095] In one embodiment, at least two opposite inner sides of the frame body 3 are provided with first mounting grooves 31, the first mounting grooves 31 are communicated with the accommodating cavity, and are used for the light guide assembly 100 to be slidably installed in the accommodating cavity; the thickness direction of the frame body 3 is the first direction; the frame body 3 includes a first frame 301 and a second frame 302, the first frame 301 includes a main body 3011 and two side portions 3012, the main body 3011 and the second frame 302 are arranged opposite to each other in the second direction, and the two side portions 3012 are respectively connected to the two ends of the main body 3011 and are connected to the second frame The frame 302 is detachably connected, and the main body 3011, the two side portions 3012 and the second frame 302 enclose the accommodating cavity; the first mounting groove 31 is arranged on the inner side of the side portion 3012, and is connected to one end of the side portion 3012 away from the main body 3011; the inner side of the second frame 302 is provided with a second mounting groove 3021 connected to the accommodating cavity, and the second mounting groove 3021 is used for the light guide assembly 100 to be installed toward one end of the second frame 302; the double-sided display module 1000 also includes a light bar 4 arranged in the second mounting groove 3021.

[0096] In the technical solution of this embodiment, during assembly, the light guide component 100 is slid into the first frame 301 through the first mounting groove 31, and before installing the second frame 302, the light bar 4 is installed in the second mounting groove 3021, and then the second frame 302 is installed between the two side portions 3012, the light bar 4 and the light guide component 100 are arranged opposite to each other, and the second frame 302 and the first frame 301 are fixed to complete the assembly of the second frame 302 and the first frame 301.

[0097] Of course, the light bar 4 is not limited to being installed in the second installation groove 3021, and the light bar 4 can also be installed in the first installation groove 31. It is understandable that if the light bar 4 is installed in the first installation groove 31, when the light guide assembly 100 and the first frame 301 are installed, the light guide assembly 100 is easy to collide with the light bar 4, which may cause damage to the light bar 4. When the light bar 4 is installed in the second installation groove 3021, since the second frame 302 is installed after the light guide assembly 100, the relatively lighter second frame 302 is better controlled, and when it is installed following the second frame 302, it is not easy to collide and cause damage to the light bar 4. Therefore, the light bar 4 is preferably set in the second installation groove 3021.

[0098] Since the double-sided display module 1000 is to realize double-sided display, the light bar 4 must include two groups of light emitting chips 42 to correspond to the two light guide plates 1. In order to facilitate the installation of the light bar 4 and the second mounting groove 3021, in the embodiment of the present invention, the light bar 4 includes a substrate 41 and two groups of light emitting chips 42. The substrate 41 is arranged in the second mounting groove 3021. The two groups of light emitting chips 42 are arranged on the side of the substrate 41 facing the light guide assembly 100, and each group of light emitting chips 42 is arranged corresponding to one light guide plate 1. In this arrangement, the two groups of light bars 4 are integrated through one substrate 41, which can reduce the installation steps compared to the two groups of light emitting chips 42 being arranged separately, and at the same time, it can be more convenient to position each group of light emitting chips 42 with the corresponding light guide plate 1.

[0099] There are many ways to install the light bar 4, for example, it can be fixed by glue, but when the light bar 4 is damaged and needs to be replaced or repaired, it is necessary to dissolve the glue by heating, which makes the repair more troublesome. Therefore, in this embodiment, the two side walls of the second installation groove 3021 in the first direction are provided with long slide grooves, and at least one end of the long slide groove is connected to the end of the second frame 302; the two ends of the substrate 41 in the first direction are respectively slidably arranged in the two long slide grooves. In this way, when installing the light bar 4, it is necessary to insert the substrate 41 from one end of the second frame 302 into the long slide groove between the installation of the second frame 302 and the first frame 301, so as to realize the installation of the light bar 4. At the same time, after the second frame 302 and the first frame 301 are fixed, the light bar 4 can also be fixed; when disassembling, it is only necessary to remove the second frame 302 from the first frame 301, and then the light bar 4 can be taken out from the long slide groove.

[0100] The double-sided display module 1000 also includes two circuit boards 7 and two protective covers 8. The two protective covers 8 respectively cover the two sides of the second frame 302 in the first direction. The two circuit boards 7 are respectively arranged between the corresponding protective covers 8 and the second frame 302, and are electrically connected to the two groups of light-emitting chips 42 and the two panels 5 to control the double-sided display of the double-sided display module 1000. The maintenance of the circuit boards 7 is also relatively convenient. The circuit boards 7 can be exposed to the outside by simply removing the protective covers 8.

[0101] Of course, a sealing structure needs to be provided between the cover plate and the second frame 302 for sealing to protect the circuit board 7. The present design does not limit the sealing structure as long as it can protect the circuit board 7 from water and dust.

[0102] In order to dissipate heat for the light bar 4, a thermal pad 6 is provided in the second mounting groove 3021 and is thermally connected to the light bar 4. The thermal pad 6 can be in various forms, such as a metal pad or a graphite sheet. In the embodiment of the present invention, the thermal pad 6 is made of thermally conductive silicone. The thermally conductive silicone has a certain elasticity, and its elasticity can clamp the light bar 4 in the second mounting groove 3021 to maintain the stability of the light bar 4.

[0103] The present invention also proposes a display device, which includes a double-sided display module 1000. The specific structure of the double-sided display module 1000 refers to the above embodiment. Since the display device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.

[0104] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A light guide assembly for a double-sided display module, characterized in that: include: Two light guide plates, the two light guide plates are arranged opposite to each other and support each other, a side of the light guide plate facing away from the other light guide plate constitutes a light emitting surface, and a reflective portion is arranged on a side of the light guide plate facing away from its light emitting surface; and The two optical films are respectively supported on the light emitting surfaces of the two light guide plates.

2. The light guide assembly according to claim 1, wherein: The two light guide plates are fixedly connected to each other.

3. The light guide assembly according to claim 2, wherein: The light guide assembly further includes an interlayer disposed between the two light guide plates to fixedly connect opposite sides of the two light guide plates.

4. The light guide assembly according to claim 1, wherein: The reflective portion includes a reflective coating.

5. The light guide assembly according to claim 4, characterized in that: The side of the light guide plate facing away from the light emitting surface thereof is screen-printed with reflective ink to form the reflective coating.

6. The light guide assembly according to claim 1, wherein: A light shielding portion is arranged on the peripheral side of the light guide plate.

7. A display screen frame, characterized in that: It comprises a frame body, wherein the frame body has a receiving cavity communicating with two sides thereof in a thickness direction, and the receiving cavity is used for installing the light guide assembly as claimed in any one of claims 1 to 6.

8. The display screen frame according to claim 7, characterized in that: At least two opposite inner sides of the frame body are provided with first installation grooves, and the first installation grooves are communicated with the accommodating cavity so as to allow the light guide assembly to be slidably installed in the accommodating cavity.

9. The display screen frame according to claim 8, characterized in that: Two support parts are convexly arranged on the inner side of the frame body and are spaced apart in the thickness direction, and the space between the two support parts constitutes the first installation groove.

10. The display screen frame according to claim 9, characterized in that: The opposite sides of the two support parts are used for panel installation.

11. The display screen frame according to claim 8, characterized in that: A buffer pad is arranged inside the first installation groove.

12. The display screen frame according to claim 11, wherein: The buffer pad comprises a silicone pad; and / or, The buffer pad is embedded in a side of the first installation groove facing the accommodating cavity.

13. The display screen frame according to claim 8, wherein: The thickness direction of the frame body is a first direction; The frame body comprises a first frame and a second frame, the first frame comprises a main body and two side portions, the main body and the second frame are arranged opposite to each other in a second direction, the two side portions are respectively connected to two ends of the main body and are detachably connected to the second frame, and the main body, the two side portions and the second frame enclose the accommodating cavity; The first mounting groove is disposed on the inner side of the side portion and is connected to an end of the side portion away from the main body portion.

14. The display screen frame according to claim 13, wherein: The first mounting groove is disposed on the inner side of the main body.

15. The display screen frame according to claim 14, wherein: The main body and the two side portions are integrally formed.

16. The display screen frame according to claim 15, characterized in that: Two ends of the main body are bent toward the second frame to form the two side portions.

17. The display screen frame according to claim 13, wherein: A second mounting groove communicating with the accommodating cavity is disposed on the inner side of the second frame, and the second mounting groove is used for the light guide assembly to be installed toward one end of the second frame.

18. The display screen frame according to claim 13, wherein: Sliding fitting parts are provided at both ends of the second frame, and the two sliding fitting parts are respectively slidably fitted with the first mounting grooves of the two side portions.

19. A double-sided display module, characterized in that: include: A light guide assembly as claimed in any one of claims 1 to 6; as well as, A display screen frame, a display screen frame as claimed in any one of claims 7 to 18.

20. The double-sided display module according to claim 19, wherein: The display screen frame is the display screen frame as claimed in claim 17; The double-sided display module also includes a light bar arranged in the second mounting groove.

21. The double-sided display module according to claim 20, characterized in that: The light bar comprises: a substrate, disposed in the second mounting groove; and Two groups of light emitting chips are arranged on a side of the substrate facing the light guide assembly, and each group of light emitting chips is arranged corresponding to one light guide plate.

22. The double-sided display module according to claim 21, characterized in that: The two side walls of the second mounting groove in the first direction are provided with long sliding grooves, and at least one end of the long sliding groove is connected to the end of the second frame; The two ends of the base plate in the first direction are respectively slidably disposed in the two long sliding grooves.

23. The double-sided display module according to claim 20, characterized in that: A heat conducting pad is arranged in the second mounting groove and is thermally connected to the light bar.

24. A display device, characterized in that: It comprises a double-sided display module as claimed in any one of claims 19 to 23.

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