Edge-type backlight module and display device

Abstract

The present application discloses an edge-entry backlight module, which mainly relates to the field of display technology. The edge-entry backlight module includes a back plate, which includes a bottom plate and a side plate, and the side plate is connected to the edge of the bottom plate; a light guide plate, which is arranged on the bottom plate; a light-emitting structure, which includes a circuit board and a plurality of lamp beads, and the circuit board is arranged on the side plate, and the plurality of lamp beads are arranged equidistantly on the side of the circuit board away from the side plate, and the light-emitting surface of the lamp beads faces the side of the light guide plate; and a light guide, which is arranged on the side of the light-emitting structure away from the bottom plate, and the light guide has a first end and a second end, the first end faces between the light guide plate and the lamp beads, and the second end faces the lamp shadow formed by two adjacent lamp beads, and the first end guides the light leaked from the lamp beads to the lamp shadow. The present application can solve the problem of light leakage and lamp shadow at the edge of the light-entry side of the edge-entry backlight module by only arranging a light guide above the light-emitting structure and the light guide plate.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to an edge-type backlight module and a display device. Background Art

[0002] With the development demand of thin backlight modules, thinness has become the direction of continuous efforts of display devices. Due to the trend of thinness, the thickness of display devices is correspondingly limited, and one of the key factors for whether a display device is thin or not is the thickness of the backlight module. Backlight modules can be divided into direct-type backlight modules and edge-type backlight modules according to the different positions of the light source. Compared with direct-type backlight modules, edge-type backlight modules can be thinner.

[0003] When operators assemble a thin backlight module, it is easy for the light-emitting structure and the light guide plate to be misaligned, resulting in the failure of all light emitted by the light-emitting structure to enter the light guide plate. As a result, light leakage occurs on the light-entry side of the edge-entry backlight module.

[0004] Moreover, in order to further reduce the weight and cost of the edge-entry backlight module, manufacturers usually increase the driving current of the light-emitting structure and increase the distance between the lamp beads in the light-emitting structure, thereby reducing the number of lamp beads and reducing the weight and cost. After increasing the distance between adjacent lamp beads, especially in display devices with narrow bezels, due to the limited light-emitting angle of the lamp beads, there is less light between two adjacent lamp beads, which will cause the area between the two corresponding lamp beads in the light guide plate to not be covered by light. The less light is the lamp shadow, so the light leakage and lamp shadow of the edge-entry backlight module have become technical problems that need to be solved urgently. Summary of the invention

[0005] The purpose of the present application is to provide an edge-entry backlight module and a display device, which can solve the light leakage and lamp shadow problems at the edge of the edge-entry backlight module.

[0006] The present application discloses an edge-entry backlight module, which comprises: a back panel, which comprises a bottom panel and a side panel, wherein the side panel is connected to the edge of the bottom panel; a light guide plate, which is arranged on the bottom panel; a light-emitting structure, which comprises a circuit board and a plurality of lamp beads, wherein the circuit board is arranged on the side panel, and the plurality of lamp beads are arranged equidistantly on a side of the circuit board away from the side panel, and the light-emitting surfaces of the lamp beads face the side of the light guide plate; and a light guide, which is arranged on a side of the light-emitting structure away from the bottom panel, and the light guide has a first end and a second end, wherein the first end faces between the light guide plate and the lamp beads, and the second end faces a lamp shadow formed by two adjacent lamp beads, and the first end guides the light leaked from the lamp beads to the lamp shadow.

[0007] Optionally, the edge-entry backlight module also includes a rubber frame, which includes a main body and a supporting part, the main body is fixed to the side panel, and the supporting part is connected to the main body, the supporting part is located on the side of the light-emitting structure away from the bottom plate, and covers the light-emitting structure and part of the light guide plate; a light guide mounting groove is provided in the supporting part, the light guide mounting groove is located on the side of the supporting part close to the bottom plate, and the light guide is provided in the light guide mounting groove.

[0008] Optionally, a supporting structure is also provided on the rubber frame, and the supporting structure is located in the light guide mounting groove, the supporting structure includes a connecting part and a fixing part, one end of the connecting part is connected to the bottom of the light guide mounting groove, and the other end is connected to the fixing part, the arrangement direction of the lamp beads is a first direction, the width of the fixing part in the first direction is greater than the width of the connecting part in the first direction, the side of the light guide away from the bottom plate abuts against the bottom of the light guide mounting groove, and the side of the light guide close to the bottom plate abuts against the fixing part.

[0009] Optionally, a reflective sheet is provided on a side of the fixing portion away from the connecting portion, the direction in which the light emitting surface of the lamp bead faces the side surface of the light guide plate is a second direction, and the thickness of the reflective sheet gradually decreases along the second direction.

[0010] Optionally, the light guide member includes a plurality of connecting parts and a plurality of light guide structures arranged in parallel at intervals, the two ends of the connecting part are respectively connected to two adjacent light guide structures, the light guide structure includes a light entrance part, a conduction part and a light output part, the two ends of the conduction part are respectively connected to the light entrance part and the light output part, the light entrance part, the conduction part and the light output part form an inverted concave structure, the light entrance part faces between the light guide plate and the lamp bead, and the light output part faces the lamp shadow formed by two adjacent lamp beads; the light entrance parts of two adjacent light guide structures are connected through the connecting part, the light entrance parts of the plurality of light guide structures and the plurality of connecting parts form the first end of the light guide member, and the light output parts of the plurality of light guide structures form the second end of the light guide member.

[0011] Optionally, the conducting part is parallel to the light guide plate, and the angle between the light incident part and the conducting part is 140° to 160°; the angle between the light emitting part and the conducting part is 140° to 160°; the arrangement direction of the lamp beads is a first direction, and the spacing between two adjacent light emitting parts is equal to the length of the lamp bead in the first direction.

[0012] Optionally, an area of ​​an end of the light incident portion away from the conductive portion is greater than an area of ​​an end of the light emitting portion away from the conductive portion.

[0013] Optionally, the light guide is filled with a photoluminescent material, and the photoluminescent material is located at the second end.

[0014] Optionally, the light guide member includes a plurality of connecting parts and a plurality of light guide structures arranged in parallel at intervals, the two ends of the connecting part are respectively connected to two adjacent light guide structures, the light guide structure includes a light entrance part, a conduction part and a light output part, the two ends of the conduction part are respectively connected to the light entrance part and the light output part, the light entrance part, the conduction part and the light output part form a semicircular structure, the light entrance part faces between the light guide plate and the lamp bead, and the light output part faces the lamp shadow formed by two adjacent lamp beads; the light entrance parts of two adjacent light guide structures are connected through the connecting part, the light entrance parts of the plurality of light guide structures and the plurality of connecting parts form the first end of the light guide member, and the light output parts of the plurality of light guide structures form the second end of the light guide member.

[0015] The present application also discloses a display device, which includes a display panel and the edge-type backlight module as described above, wherein the edge-type backlight module provides a backlight source for the display panel.

[0016] Compared with the solution of setting a reflective sheet above the position between the light-emitting structure and the light guide plate, the present application only adds a light guide in the edge-entry backlight module, and the first end of the light guide is directed to between the light guide plate and the lamp beads, that is, the position where the lamp beads leak light, and the second end of the light guide is directed to the lamp shadow formed by two adjacent lamp beads, thereby guiding the light leaked from the lamp beads to the lamp shadow, making secondary use of the light leaked from the lamp beads, and improving the utilization rate of light; and also improving the brightness of the lamp shadow, alleviating the lamp shadow problem of the edge-entry backlight module, and can also improve the overall brightness of the light guide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The included drawings are used to provide a further understanding of the embodiments of the present application, which constitute a part of the specification, are used to illustrate the implementation methods of the present application, and together with the text description, explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0018] Figure 1 is a schematic diagram of a display device according to an embodiment of the present application;

[0019] Figure 2 is a schematic diagram of an edge-type backlight module according to the first embodiment of the present application;

[0020] Figure 3 is a schematic diagram of a light path of a light guide member of the first embodiment of the present application;

[0021] Figure 4 is a schematic diagram of a cross section of a rubber frame of the first embodiment of the present application;

[0022] Figure 5 It is a three-dimensional schematic diagram of a plastic frame of the first embodiment of the present application;

[0023] Figure 6 is a schematic diagram of a light guide member according to the first embodiment of the present application;

[0024] Figure 7 It is a schematic diagram of a light guide member according to the second embodiment of the present application.

[0025] Among them, 10, display device; 20, display panel; 30, edge-entry backlight module; 100, back plate; 110, side plate; 120, bottom plate; 200, light-emitting structure; 210, circuit board; 220, lamp beads; 300, light guide; 310, first end; 320, second end; 330, connecting part; 340, light guide structure; 341, light input part; 342, transmission part; 343, light output part; 400, rubber frame; 410, main body; 420, supporting part; 430, light guide installation groove; 450, supporting structure; 451, connecting part; 452, fixing part; 500, small white reflector; 510, light guide plate; 600, reflective sheet; 700, optical film; 800, heat dissipation structure. DETAILED DESCRIPTION

[0026] It should be understood that the terms used herein, the specific structures and functional details disclosed are only for describing specific embodiments and are representative, but the present application can be implemented in many alternative forms and should not be construed as being limited to only the embodiments described herein.

[0027] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, unless otherwise specified, features defined as "first" and "second" may explicitly or implicitly include one or more of the features; "plurality" means two or more. The term "including" and any variation thereof means non-exclusive inclusion, and one or more other features, integers, steps, operations, units, components and / or combinations thereof may exist or be added.

[0028] In addition, terms indicating orientation or positional relationships, such as “center,” “lateral,” “up,” “down,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inside,” and “outside,” are described based on the orientation or relative positional relationships shown in the accompanying drawings and are merely simplified descriptions for the convenience of describing the present application. They do not indicate that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limitations on the present application.

[0029] In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internally connected between two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] The present application is described in detail below with reference to the accompanying drawings and optional embodiments.

[0031] Figure 1 is a schematic diagram of a display device according to an embodiment of the present application. Figure 1 As shown, the present application discloses a display device 10 , which includes a display panel 20 and an edge-type backlight module 30 , wherein the edge-type backlight module 30 provides a backlight source for the display panel 20 .

[0032] Among them, the display panel 20 of the present application includes various display types of display panels 20, such as TN (Twisted Nematic) display panel 20, IPS (In-Plane Switching) display panel 20, VA (Vertical Alignment) display panel 20, and MVA (Multi-Domain Vertical Alignment) display panel 20.

[0033] The present application also discloses an edge-type backlight module 30, and improves the edge-type backlight module 30, which can be used in the display device 10 described above. For the edge-type backlight module 30 of the present application, the following design is provided:

[0034] Figure 2 is a schematic diagram of an edge-type backlight module according to the first embodiment of the present application, Figure 3 is a schematic diagram of a light path of a light guide member of the first embodiment of the present application, such as Figure 2-3 As shown, Figure 3The direction indicated by the middle arrow is the direction in which light is conducted in the light guide 300. The present application also discloses an edge-type backlight module 30, which includes:

[0035] The back plate 100 includes a bottom plate 120 and side plates 110 , wherein the side plates 110 are connected to edges of the bottom plate 120 .

[0036] The light guide plate 510 is disposed on the bottom plate 120 .

[0037] The light emitting structure 200 includes a circuit board 210 and a plurality of lamp beads 220, wherein the circuit board 210 is disposed on the side plate 110, and the plurality of lamp beads 220 are equidistantly disposed on a side of the circuit board 210 away from the side plate 110, and the light emitting surface of the lamp beads 220 faces the side of the light guide plate 510, and

[0038] The light guide 300 is arranged on a side of the light-emitting structure 200 away from the base plate 120, and has a first end 310 and a second end 320. The first end 310 faces between the light guide plate 510 and the lamp beads 220, and the second end 320 faces the lamp shadow formed by two adjacent lamp beads 220. The first end 310 guides the light leaked from the lamp beads 220 to the lamp shadow.

[0039] The light emitting surface of the lamp bead 220 faces the light guide plate 510 , and most of the light emitted by the lamp bead 220 enters the light guide plate 510 . The part of the light that does not enter the light guide plate 510 is called the light leaked from the lamp bead 220 .

[0040] Compared with the solution of setting a reflective sheet above the position between the light-emitting structure 200 and the light guide plate 510, since the reflective sheet will reflect the light leaked from the lamp bead 220 onto the light guide plate 510, although the brightness of the corresponding lamp shadow on the light guide plate 510 can be improved, it will also cause the area of ​​the light guide plate 510 that was not originally a lamp shadow to be brighter, thereby exacerbating the difference in brightness between the lamp shadow and the area that is not a lamp shadow, resulting in a more prominent lamp shadow effect. Therefore, the solution of only setting a reflective sheet 600 above the position between the light-emitting structure 200 and the light guide plate 510 cannot solve the problems of light leakage and shadow at the same time.

[0041] Therefore, the present application adds a light guide 300 in the edge-entry backlight module 30, and the first end 310 of the light guide 300 is oriented between the light guide plate 510 and the lamp bead 220, that is, the position where the lamp bead 220 leaks light, and the second end 320 of the light guide 300 is oriented toward the lamp shadow formed by two adjacent lamp beads 220, thereby guiding the light leaked from the lamp bead 220 to the lamp shadow, and performing a secondary utilization of the light leaked from the lamp bead 220, thereby improving the utilization rate of light; and also improving the brightness of the lamp shadow, alleviating the lamp shadow problem of the edge-entry backlight module 30, and also improving the overall brightness of the light guide plate 510, thereby achieving that only by adding the light guide 300, the light leakage problem and the lamp shadow problem of the edge-entry backlight module 30 can be solved at the same time.

[0042] The edge-entry backlight module 30 also includes a small white reflector 500, a heat dissipation structure 800, an optical film 700 and a plastic frame 400. The small white reflector 500 is arranged on the bottom plate 120 and is located below the light guide plate 510 and the light-emitting structure 200. The small white reflector 500 reflects the light leaked downward from the light-emitting structure 200 back to the light guide plate 510, and reflects the light refracted downward by the light guide plate 510 back to the light guide plate 510, thereby improving the utilization rate of light and increasing the brightness of the light guide plate 510.

[0043] The heat dissipation structure 800 is arranged between the circuit board 210 and the side panel 110. The heat dissipation structure 800 can be a structure such as a heat dissipation tape. The material of the back panel 100 is metal. The heat dissipation tape can not only fix the light-emitting structure 200 on the side panel 110, but also conduct the heat emitted by the light-emitting structure 200 to the side panel 110, dissipate the heat generated by the light-emitting structure 200, and thus improve the service life of the light-emitting structure 200.

[0044] The optical film 700 is disposed on the light guide plate 510 and is located in the display area of ​​the light guide plate 510 corresponding to the display panel 20. The optical film 700 includes films such as a diffuser and a brightness enhancement film, which diffuse and increase the light transmitted from the light guide plate 510 to improve the optical quality of the display panel 20.

[0045] The plastic frame 400 is attached to the display panel 20 by adhesive tape, thereby fixing and supporting the display panel 20. The plastic frame 400 is made of black material, thereby preventing the light emitted by the light emitting structure 200 from being transmitted from the plastic frame 400 to the outside of the display panel 20.

[0046] like Figure 3-5As shown, the light guide 300 can be fixedly connected to the side panel 110, and of course, it can also be connected to the glue frame 400. The present application is explained by the fixed connection between the light guide 300 and the frame glue. The glue frame 400 includes a main body 410 and a support part 420. The main body 410 is fixed to the side panel 110, and the support part 420 is connected to the main body 410. The support part 420 is located on the side of the light-emitting structure 200 away from the bottom plate 120, and covers the light-emitting structure 200 and a part of the light guide plate 510; the covered part of the light guide plate 510 is the non-display area of ​​the light guide plate 510 corresponding to the display panel 20.

[0047] The support part 420 is provided with a light guide installation groove 430, and the light guide installation groove 430 is located on a side of the support part 420 close to the bottom plate 120, and the light guide 300 is arranged in the light guide installation groove 430. Specifically, the material of the light guide 300 is composed of one of transparent polycarbonate and polyester resin. The present application provides the light guide installation groove 430 on the support part 420, and injects the transparent polycarbonate or polyester resin material into the light guide installation groove 430 by injection molding, thereby forming the light guide 300, so that the shape of the light guide 300 matches the light guide installation groove 430, and the assembly steps of the light guide 300 and the rubber frame 400 can be omitted.

[0048] Of course, it is also possible to prepare a complete light guide 300 separately first, and then fix it on the support part 420 of the plastic frame 400 by gluing or the like. Compared with the above method, preparing a complete light guide 300 separately, and then fixing it on the support part 420 of the plastic frame 400 by gluing or the like, has a simpler preparation process and higher production efficiency.

[0049] Further, such as Figure 4-5 As shown, in order to improve the connection stability of the light guide 300, the present application further provides a support structure 450. Specifically, the support structure 450 is located in the light guide installation groove 430. The support structure 450 includes a connecting portion 451 and a fixing portion 452. One end of the connecting portion 451 is connected to the bottom of the light guide installation groove 430, and the other end is connected to the fixing portion 452.

[0050] The arrangement direction of the lamp beads 220 is the first direction, the width of the fixing portion 452 in the first direction is greater than the width of the connecting portion 451 in the first direction, the side of the light guide 300 away from the bottom plate 120 abuts against the bottom of the light guide installation groove 430, and the side of the light guide 300 close to the bottom plate 120 abuts against the fixing portion 452. This prevents the light guide 300 from falling off the supporting portion 420 during later use.

[0051] And, if Figure 3 As shown, the present application further provides a reflective sheet 600 on the side of the fixing portion 452 away from the connecting portion 451, and the direction of the light-emitting surface of the lamp bead toward the side of the light guide plate is the second direction, and the thickness of the reflective sheet 600 gradually decreases along the second direction, that is, it can also be understood that the reflective surface of the reflective sheet 600 is an inclined reflective surface, and the cross-section of the reflective sheet 600 is a triangle. The inclined reflective sheet 600 reflects more light toward the direction of the light guide plate 510, thereby improving the utilization rate of light.

[0052] Figure 6 is a schematic diagram of a light guide member of the first embodiment of the present application, such as Figure 6 As shown, the light guide 300 includes a plurality of connecting parts 330 and a plurality of light guide structures 340 arranged in parallel at intervals. A reflective layer can be coated on the inner walls of the connecting parts 330 and the light guide structures 340 to improve the conduction efficiency of the light guide 300 and reduce the loss of light in the light guide 300.

[0053] The two ends of the connecting portion 330 are respectively connected to the two adjacent light guide structures 340, and the light guide structure 340 includes a light entrance portion 341, a conduction portion 342 and a light output portion 343, and the two ends of the conduction portion 342 are respectively connected to the light entrance portion 341 and the light output portion 343, and the light entrance portion 341, the conduction portion 342 and the light output portion 343 form an inverted concave structure, and the light entrance portion 341 faces between the light guide plate 510 and the lamp bead 220, and the light output portion 343 faces the lamp shadow formed by two adjacent lamp beads 220.

[0054] The light entrance portions 341 of two adjacent light guide structures 340 are connected through the connecting portion 330 , and the light entrance portions 341 of the multiple light guide structures 340 and the multiple connecting portions 330 form the first end 310 of the light guide member 300 , and the light exit portions 343 of the multiple light guide structures 340 form the second end 320 of the light guide member 300 .

[0055] The orthographic projection of the first end 310 completely covers the entire light-emitting structure 200, the connecting portion 330 corresponds to the position of the lamp bead 220, and the light-guiding structure 340 corresponds to the position between two adjacent lamp beads 220. The light leaked from the lamp bead 220 enters the light guide 300 from the connecting portion 330 and the light-entering portion 341, and is transmitted to the light-emitting portion 343 through the transmission portion 342, and finally emitted from the light-emitting portion 343 toward the position of the light guide plate 510 corresponding to the lamp shadow, thereby supplementing the lamp shadow. The connecting portion 451 of the support structure 450 is located between two adjacent transmission portions 342, and the fixing portion 452 is located below the transmission portion 342 and abuts against the transmission portion 342.

[0056] Specifically, the conducting portion 342 is parallel to the light guide plate 510, and the angle between the light entrance portion 341 and the conducting portion 342 is 140° to 160°; the angle between the light exit portion 343 and the conducting portion 342 is 140° to 160°; preferably 150°, at which time most of the light leaked from the lamp bead 220 is parallel to the direction of the light entrance portion 341, so that the light leaked from the lamp bead 220 can enter the light guide 300 from the light entrance portion 341 as much as possible.

[0057] The distance between two adjacent light emitting portions 343 is equal to the length of the lamp bead 220 in the first direction, so that one light emitting portion 343 corresponds to one lamp shadow area, thereby avoiding the occurrence of misalignment between the light emitting portion 343 and the lamp shadow area.

[0058] In order to further improve the brightness of the lamp shadow area, a photoluminescent material can be directly set at the position of the light guide plate 510 corresponding to the lamp shadow area, so that the light inside the light guide plate 510 can also excite the photoluminescent material to fill in the lamp shadow area.

[0059] Of course, photoluminescent material can also be filled in the light guide 300, and the photoluminescent material is located at the second end 320, that is, the light exit portion 343. In this way, even if there is less light entering the light guide 300 from the light entrance portion 341, the photoluminescent material on the light exit portion 343 can be stimulated, so that the photoluminescent material emits light to increase the brightness of the light shadow area. Compared with the above-mentioned solution of arranging the photoluminescent material at the position of the light guide plate 510 corresponding to the light shadow area, filling the light guide 300 with photoluminescent material does not require improvement of the original light guide plate 510 of the edge-entry backlight module 30, and the process is simpler.

[0060] Of course, the area of ​​the end of the light input portion 341 away from the conductive portion 342 can be made larger than the area of ​​the end of the light output portion 343 away from the conductive portion 342, so as to increase the amount of light entering the light input portion 341, increase the light gathering degree of the light output portion 343, and increase the brightness of the light shadow area.

[0061] Embodiment 2:

[0062] Figure 7 is a schematic diagram of a light guide member of the second embodiment of the present application, such as Figure 7As shown, different from the first embodiment, the light guiding structure 340 of this embodiment is in the form of a curved cylinder. Specifically, the light guiding member 300 includes a plurality of connecting portions 330 and a plurality of light guiding structures 340 spaced and arranged in parallel, the two ends of the connecting portion 330 are respectively connected to two adjacent light guiding structures 340, the light guiding structure 340 includes a light input portion 341, a conducting portion 342 and a light output portion 343, the two ends of the conducting portion 342 are respectively connected to the light input portion 341 and the light output portion 343, the cross-sections of the light input portion 341, the conducting portion 342 and the light output portion 343 form a semicircular structure, the light input portion 341 faces between the light guide plate 510 and the lamp bead 220, and the light output portion 343 faces the lamp shadow formed by two adjacent lamp beads 220.

[0063] The light entrance portions 341 of two adjacent light guide structures 340 are connected through the connecting portion 330, and the light entrance portions 341 of the plurality of light guide structures 340 and the plurality of connecting portions 330 form the first end 310 of the light guide member 300, and the light exit portions 343 of the plurality of light guide structures 340 form the second end 320 of the light guide member 300. Compared with the first embodiment, the interior of the light guide member 300 of the solution of this embodiment is a curved surface, which is more conducive to the reflection and propagation of light, reduces the loss of light, and improves the fill light effect on the light shadow.

[0064] It should be noted that the inventive concept of the present application can form a large number of embodiments, but the length of the application document is limited and it is impossible to list them one by one. Therefore, under the premise of no conflict, the embodiments or technical features described above can be arbitrarily combined to form new embodiments. After the embodiments or technical features are combined, the original technical effects will be enhanced.

[0065] The above content is a further detailed description of the present application in combination with specific optional implementation methods, and it cannot be determined that the specific implementation of the present application is limited to these descriptions. For ordinary technicians in the technical field to which the present application belongs, several simple deductions or substitutions can be made without departing from the concept of the present application, which should be deemed to fall within the scope of protection of the present application.

Claims

1. A side-lit backlight module, characterized in that: The edge-type backlight module comprises: A back plate, the back plate comprising a bottom plate and side plates, the side plates being connected to edges of the bottom plate; A light guide plate, the light guide plate being arranged on the bottom plate; A light-emitting structure, comprising a circuit board and a plurality of lamp beads, wherein the circuit board is arranged on the side plate, the plurality of lamp beads are arranged equidistantly on a side of the circuit board away from the side plate, and the light-emitting surfaces of the lamp beads face the side of the light guide plate, and A light guide is arranged on a side of the light emitting structure away from the bottom plate, the light guide has a first end and a second end, the first end faces between the light guide plate and the lamp beads, the second end faces the lamp shadow formed by two adjacent lamp beads, and the first end guides the light leaked from the lamp beads to the lamp shadow; The edge-entry backlight module further comprises a plastic frame, which comprises a main body and a supporting part, wherein the main body is fixed to the side plate, and the supporting part is connected to the main body. The support portion is located at a side of the light emitting structure away from the bottom plate, and covers the light emitting structure and a portion of the light guide plate; A light guide installation groove is provided in the support portion, the light guide installation groove is located on a side of the support portion close to the bottom plate, and the light guide is provided in the light guide installation groove; A supporting structure is also provided on the rubber frame, and the supporting structure is located in the light guide mounting groove, the supporting structure includes a connecting part and a fixing part, one end of the connecting part is connected to the bottom of the light guide mounting groove, and the other end is connected to the fixing part, the arrangement direction of the lamp beads is a first direction, the width of the fixing part in the first direction is greater than the width of the connecting part in the first direction, the side of the light guide away from the bottom plate abuts against the bottom of the light guide mounting groove, and the side of the light guide close to the bottom plate abuts against the fixing part.

2. The edge-lit backlight module according to claim 1, characterized in that: A reflective sheet is disposed on a side of the fixing portion away from the connecting portion, the direction in which the light emitting surface of the lamp bead faces the side surface of the light guide plate is a second direction, and the thickness of the reflective sheet gradually decreases along the second direction.

3. The edge-lit backlight module according to claim 1, characterized in that: The light guide is filled with a photoluminescent material, and the photoluminescent material is located at the second end.

4. A side-lit backlight module, characterized in that: The edge-type backlight module comprises: A back plate, the back plate comprising a bottom plate and side plates, the side plates being connected to edges of the bottom plate; A light guide plate, the light guide plate being arranged on the bottom plate; A light-emitting structure, comprising a circuit board and a plurality of lamp beads, wherein the circuit board is arranged on the side plate, the plurality of lamp beads are arranged equidistantly on a side of the circuit board away from the side plate, and the light-emitting surfaces of the lamp beads face the side of the light guide plate, and A light guide is arranged on a side of the light emitting structure away from the bottom plate, the light guide has a first end and a second end, the first end faces between the light guide plate and the lamp beads, the second end faces the lamp shadow formed by two adjacent lamp beads, and the first end guides the light leaked from the lamp beads to the lamp shadow; The light guide member comprises a plurality of connecting parts and a plurality of light guide structures arranged in parallel at intervals, the two ends of the connecting part are respectively connected to two adjacent light guide structures, the light guide structure comprises a light entrance part, a transmission part and a light exit part, the two ends of the transmission part are respectively connected to the light entrance part and the light exit part, the light entrance part, the transmission part and the light exit part form an inverted concave structure, the light entrance part faces between the light guide plate and the lamp beads, and the light exit part faces the lamp shadow formed by two adjacent lamp beads; The light entrance parts of two adjacent light guide structures are connected through the connecting part, the light entrance parts of multiple light guide structures and multiple connecting parts form the first end of the light guide member, and the light exit parts of multiple light guide structures form the second end of the light guide member.

5. The edge-lit backlight module according to claim 4, characterized in that: The conducting part is parallel to the light guide plate, and the angle between the light incident part and the conducting part is 140° to 160°; the angle between the light emitting part and the conducting part is 140° to 160°; the arrangement direction of the lamp beads is a first direction, and the spacing between two adjacent light emitting parts is equal to the length of the lamp bead in the first direction.

6. The edge-lit backlight module according to claim 4, characterized in that: An area of ​​the end of the light incident portion away from the transmission portion is greater than an area of ​​the end of the light emitting portion away from the transmission portion.

7. An edge-type backlight module, characterized in that: The edge-type backlight module comprises: A back plate, the back plate comprising a bottom plate and side plates, the side plates being connected to edges of the bottom plate; A light guide plate, the light guide plate being arranged on the bottom plate; A light-emitting structure, comprising a circuit board and a plurality of lamp beads, wherein the circuit board is arranged on the side plate, the plurality of lamp beads are arranged equidistantly on a side of the circuit board away from the side plate, and the light-emitting surfaces of the lamp beads face the side of the light guide plate, and A light guide is arranged on a side of the light emitting structure away from the bottom plate, the light guide has a first end and a second end, the first end faces between the light guide plate and the lamp beads, the second end faces the lamp shadow formed by two adjacent lamp beads, and the first end guides the light leaked from the lamp beads to the lamp shadow; The light guide member includes a plurality of connecting parts and a plurality of light guide structures arranged in parallel at intervals, the two ends of the connecting part are respectively connected to two adjacent light guide structures, the light guide structure includes a light entrance part, a transmission part and a light exit part, the two ends of the transmission part are respectively connected to the light entrance part and the light exit part, the light entrance part, the transmission part and the light exit part form a semicircular structure, the light entrance part faces between the light guide plate and the lamp beads, and the light exit part faces the lamp shadow formed by two adjacent lamp beads; The light entrance parts of two adjacent light guide structures are connected through the connecting part, the light entrance parts of multiple light guide structures and multiple connecting parts form the first end of the light guide member, and the light exit parts of multiple light guide structures form the second end of the light guide member.

8. A display device, characterized in that: The display device comprises a display panel and an edge-entry backlight module as claimed in any one of claims 1 to 7, wherein the edge-entry backlight module provides a backlight source for the display panel.

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