CN218647580U - Light guide plate, backlight module and display device - Google Patents

Abstract

The utility model discloses a light guide plate, backlight unit and display device. The light guide plate comprises a light guide substrate, a quantum dot adhesive layer and a protective layer; the light guide substrate is provided with a light incident surface and a light emergent surface; the quantum glue dispensing layer is arranged on the light incident surface of the light guide base body and/or the light emergent surface of the light guide base body; the protective layer is provided with at least two layers and is fixedly attached to one side, deviating from the light guide base body, of the quantum glue dispensing layer. The utility model discloses technical scheme is through directly establishing the income plain noodles and/or the play plain noodles at the leaded light base member with quantum point glue layer, make the leaded light base member as the protection base member of one side of quantum dot glue film, the leaded light base member has acted as the protective layer of quantum point glue layer one side promptly, thereby make leaded light base member, quantum dot glue film and quantum dot glue film deviate from the thickness of leaded light base member and be less than the thickness sum that sets up light guide plate and quantum dot membrane alone, in order to satisfy frivolous demand, and can also improve the light efficiency to a certain extent.

Description

Light guide plate, backlight module and display device

Technical Field

The utility model relates to a display technical field, in particular to light guide plate, use backlight unit of this light guide plate and use this backlight unit's display device.

Background

With the progress of display technology, display devices are increasingly required to have a high color gamut. At present, the requirement of high color gamut is usually met by adding quantum dot films in the backlight module, especially above the light guide plate. However, the conventional quantum dot film and the duct board are separately manufactured, and in order to ensure the stability of the quantum dot film, two protective layers are usually disposed on the upper and lower surfaces of the quantum dot film in the manufacturing process, wherein one protective layer is a water-oxygen barrier film, and the other protective layer is a mechanical isolation layer. Therefore, the quantum dot film and the light guide plate are thick in whole thickness, the requirement for lightening and thinning of display equipment cannot be met, and the lighting effect can be reduced to a certain extent.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a light guide plate aims at making the solidification form the quantum dot membrane on the light guide plate to reduce the whole thickness of light guide plate and quantum dot membrane.

In order to achieve the above object, the light guide plate provided by the present invention comprises a light guide substrate, a quantum dot glue layer and a protective layer; the light guide substrate is provided with a light incident surface and a light emergent surface; the quantum glue dispensing layer is arranged on the light incident surface of the light guide base body and/or the light emergent surface of the light guide base body; the protective layer is provided with at least two layers and is fixedly attached to one side, deviating from the light guide base body, of the quantum dot adhesive layer.

In one embodiment, the protective layer has two layers, the protective layer comprising:

the water and oxygen blocking layer is arranged on one side, away from the light guide substrate, of the quantum dispensing layer; and

the mechanical isolation layer is arranged on the water-oxygen barrier layer and deviates from one side of the quantum dot glue layer.

In one embodiment, the light guide substrate has an upper surface and a lower surface opposite to each other, the light exit surface of the light guide substrate is the upper surface, and the quantum dot adhesive layer is disposed on the light exit surface of the light guide substrate.

In an embodiment, the light guide substrate has an upper surface, a lower surface and a side surface connecting the upper surface and the lower surface, one of the side surface or the lower surface is a light incident surface of the light guide substrate, and the quantum dot glue layer is disposed on the light incident surface of the light guide substrate.

In one embodiment, the light incident surface of the light guide substrate is recessed to form a groove, and the quantum dot adhesive layer is disposed on a groove wall of the groove.

The utility model also provides a backlight module, including backplate, light source and foretell light guide plate, the backplate is formed with the installation cavity, the light source with the light guide plate all is located in the installation cavity, the light source is fixed to be located the backplate, the income plain noodles of leaded light base member with the light source sets up relatively.

In an embodiment, the light incident surface of the light guide substrate is recessed to form a groove, the quantum dot adhesive layer is disposed on a groove wall of the groove, and the light source extends into the groove.

In one embodiment, the light source includes:

the lamp beads are positioned in the grooves; and

the base plate, the lamp pearl connect in the base plate, the base plate is fixed to be located the backplate.

In one embodiment, a reflector plate is arranged at the bottom of the light guide base body; and/or an optical film is arranged on the top of the light guide plate.

The utility model also provides a display device, including display panel and foretell backlight unit, display panel locates backlight unit's light-emitting side.

The utility model discloses technical scheme is through directly establishing the income plain noodles and/or the play plain noodles at the leaded light base member with quantum dot glue layer, then can have the effect of ordinary light guide plate on the one hand and have the effect of quantum dot membrane, on the other hand still makes the leaded light base member regard as the protection base member of one side of quantum dot glue film, promptly the leaded light base member has acted as the protective layer of quantum dot glue film one side, then only need in quantum dot glue layer deviate from one side of leaded light base member set up the protective layer can, thereby make the leaded light base member, quantum dot glue film and quantum dot glue film deviate from the thickness of leaded light base member and be less than the thickness sum that sets up light guide plate and quantum dot membrane alone, in order to satisfy frivolous demand, and can also improve the light efficiency to a certain extent. In addition, through setting up two-layer at least protective layer, then have better separation effect to the quantum dot glue film, avoid external force or external environment to cause the influence to quantum dot glue film.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a light guide plate according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a light guide plate according to another embodiment of the present invention;

fig. 3 is a schematic structural view of a light guide plate according to another embodiment of the present invention;

fig. 4 is a schematic structural diagram of a backlight module according to a second embodiment of the present invention;

fig. 5 is a schematic structural diagram of a backlight module according to another embodiment of the present invention;

fig. 6 is a schematic structural diagram of a backlight module according to another embodiment of the present invention;

fig. 7 is a schematic structural diagram of a display device according to a third embodiment of the present invention.

The reference numbers indicate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Light guide plate	110	Light guide substrate
111	Light incident surface	111a	Groove
				112	Light emitting surface	120	Quantum dot glue layer
130	Protective layer	131	Water oxygen barrier layer
				132	Mechanical isolation layer	200	Back plate
210	Base plate	220	Side plate
				300	Light source	310	Lamp bulb
320	Substrate	400	Reflector plate
				500	Optical film	600	Display panel

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The first embodiment is as follows:

the utility model provides a light guide plate 100.

In the embodiment of the present invention, please refer to fig. 1 to 3, the light guide plate 100 includes a light guide substrate 110, a quantum dot adhesive layer 120, and a protection layer 130; the light guide substrate 110 has a light incident surface 111 and a light emitting surface 112; the quantum dot adhesive layer 120 is disposed on the light incident surface 111 of the light guide substrate 110 and/or the light emitting surface 112 of the light guide substrate 110; the protective layer 130 has at least two layers and is fixedly attached to a side of the quantum dot adhesive layer 120 away from the light guide substrate 110.

The utility model discloses when light guide plate 100 among the technical scheme is applied to display device, light source 300 among the display device can be blue light source 300. Through setting up quantum dot glue film 120, then this quantum dot glue film 120 includes that the base member glues and scatters the quantum dot powder in the base member glues, and the quantum dot powder can include red quantum dot powder and green quantum dot powder, and the two can allot out manifold colour through certain allotment proportion to can improve the colour gamut of using this light guide plate 100's display device.

Through locating on leaded light base member 110 with quantum dot glue film 120, then the utility model discloses light guide plate 100 among the technical scheme both has the effect of ordinary single light guide plate 100, also has the effect of quantum dot membrane, under the shining of blue light promptly, red quantum dot powder and green quantum dot powder in the blue light arouses quantum dot glue film 120 are luminous, and the light after the mixture jets out for white light and from the play plain noodles 112 of light guide plate 100. The quantum dot adhesive layer 120 may be disposed on the light incident surface 111 of the light guide substrate 110, and at this time, under the irradiation of the blue light, the blue light is mixed with the light emitted from the quantum dot powder in the quantum dot adhesive layer 120 to form a white light, and then the white light passes through the light guide substrate 110 and is emitted from the light emitting surface 112 of the light guide substrate 110. The quantum dot adhesive layer 120 may also be disposed on the light-emitting surface 112 of the light guide substrate 110, at this time, the blue light irradiates the light-entering surface 111 of the light guide substrate 110, and passes through the light guide substrate 110 to irradiate the light-emitting surface 112 of the light guide substrate 110, and the blue light emitted from the light-emitting surface 112 of the light guide substrate 110 passes through the quantum dot adhesive layer 120 to mix with the light emitted from the quantum dot powder in the quantum dot adhesive layer 120 and emit white light. Or, the light incident surface 111 and the light exit surface 112 of the light guide substrate 110 may be provided with the quantum dot adhesive layer 120 at the same time, so that when blue light still leaks through the quantum dot adhesive layer 120 on the light incident surface 111 of the light guide substrate 110, the blue light may be further mixed with the quantum dot powder in the quantum dot adhesive layer 120 through the quantum dot adhesive layer 120 on the light exit surface 112 of the light guide substrate 110 to form white light, thereby preventing excessive blue light from leaking from the light guide plate 100. Establish in the income plain noodles 111 and/or the play plain noodles 112 of leaded light base member 110 through the quantum dot glue film 120, make quantum dot glue film 120 and light guide plate 100 be integrative structure, avoid setting up protective layer 130 again alone in one side of quantum dot glue film 120 towards leaded light base member 110 with the condition of preventing quantum dot glue film 120 oxidation or scratch, leaded light base member 110 at this moment can act as the effect of protective layer 130 of protection quantum dot glue film 120, so set up, the whole thickness of quantum dot film and light guide plate 100 has been reduced, thereby can satisfy the demand of frivolousization on the one hand, on the other hand can also improve the light efficiency to a certain extent, make display device have better optical display effect.

Further, at least two protective layers 130 are further arranged on one side of the quantum dot adhesive layer 120 departing from the light guide substrate 110, so that the quantum dot adhesive layer 120 is not easily oxidized or scratched, the stability of the quantum dot adhesive layer 120 is ensured, and the service lives of the light guide plate 100 and the display device using the light guide plate 100 are prolonged. Specifically, the at least two protection layers 130 may be made of the same material, or different protection layers 130 may be made of different materials. In addition, each of the protection layers 130 may also have protection effects of different layers, for example, one of the protection layers 130 may be a chemical protection layer 130, that is, a protection layer that protects the quantum dot adhesive layer 120 from being oxidized by water and air, and the other protection layers 130 may also be a mechanical protection layer 130, that is, a protection layer that improves the wear resistance of the quantum dot adhesive layer 120 from a mechanical layer.

The utility model discloses technical scheme is through directly establishing quantum dot glue film 120 at the income plain noodles 111 and/or play plain noodles 112 of leaded light base member 110, then can have ordinary light guide plate 100's effect and the effect that has the quantum dot membrane on the one hand, on the other hand still makes leaded light base member 110 regard as the protection base member of one side of quantum dot glue film 120, leaded light base member 110 has acted as the protective layer 130 of quantum dot glue film 120 one side promptly, then only need to deviate from one side of leaded light base member 110 at quantum dot glue film 120 set up protective layer 130 can, thereby make leaded light base member 110, the thickness sum that quantum dot glue film 120 and quantum dot glue film 120 deviate from leaded light base member 110 is less than the thickness sum that sets up light guide plate 100 and quantum dot membrane alone, in order to satisfy frivolous demand, and can also improve the light efficiency to a certain extent. In addition, by arranging the at least two protective layers 130, a better blocking effect is provided for the quantum dot adhesive layer 120, and the quantum dot adhesive layer 120 is prevented from being affected by external force or external environment.

Further, referring to fig. 1 and fig. 3, the protection layer 130 has two layers, the protection layer 130 includes a water-oxygen barrier layer 131 and a mechanical isolation layer 132, the water-oxygen barrier layer 131 is disposed on a side of the quantum dot glue layer 120 away from the light guiding substrate 110; the mechanical isolation layer 132 is disposed on a side of the water-oxygen barrier layer 131 away from the quantum dot glue layer 120.

By providing two protective layers 130, on the one hand, a strong protection effect can be ensured, and on the other hand, a thicker thickness of the light guide plate 100 is avoided. The water-oxygen barrier layer 131 is used for blocking quantum dot powder and rings in the quantum dot glue layer 120The water and oxygen in the environment react, and the effectiveness and the service life of the quantum dot glue layer 120 can be further improved. Still be equipped with mechanical isolation layer 132 through the one side that deviates from quantum dot glue film 120 at water oxygen barrier layer 131, then this mechanical isolation layer 132 all has mechanical protection effect to water oxygen barrier layer 131 and quantum dot glue film 120, prevents that water oxygen barrier layer 131 and quantum dot glue film 120 scratch and inefficacy. Specifically, the material of the water oxygen barrier layer 131 may be SiO ₂ 、TiO ₂ 、Al ₂ O ₃ 、CaCO ₃ 、BaSO ₄ One or more of polymethyl methacrylate, polystyrene, acrylonitrile-butadiene-styrene copolymer, polyurethane and organic silicon polymer. The material of the mechanical isolation layer 132 may be a poly-terephthalic plastic or other wear resistant material.

In an embodiment, as shown in fig. 1, the light guide substrate 110 has an upper surface and a lower surface opposite to each other, the light emitting surface 112 of the light guide substrate 110 is the upper surface, and the quantum dot adhesive layer 120 is disposed on the light emitting surface 112 of the light guide substrate 110.

The utility model discloses the upper surface of leaded light base member 110 among the technical scheme indicates that leaded light base member 110 deviates from the surface of one side of the bottom plate 210 of backplate 200 among the backlight unit, and the lower surface of leaded light base member 110 indicates that leaded light base member 110 is towards the surface of one side of the bottom plate 210 of backplate 200 among the backlight unit. In this embodiment, the quantum dot adhesive layer 120 is disposed on the upper surface of the light guide substrate 110, that is, the quantum dot adhesive layer 120 is disposed on the light emitting surface 112 of the light guide substrate 110, so that the light emitted from the light source 300 first passes through the light guide effect of the light guide substrate 110 and then emits white light through the quantum dot adhesive layer 120. In addition, it can be understood that other diaphragms are usually further disposed above the light guide plate 100, and the quantum dot adhesive layer 120 is disposed on the light emitting surface 112 of the light guide substrate 110, so that the protective layer 130 is located on a side of the quantum dot adhesive layer 120 away from the light guide substrate 110, and thus the diaphragm disposed above the light guide plate 100 does not scratch the light guide substrate 110 and the quantum dot adhesive layer 120, and a stable light guide effect of the light guide substrate 110 and a stable state of quantum dot powder in the quantum dot adhesive layer 120 are ensured.

In another embodiment, as shown in fig. 2 or fig. 3, the light guide substrate 110 has an upper surface, a lower surface and a side surface connecting the upper surface and the lower surface, wherein one side surface or the lower surface is the light incident surface 111 of the light guide substrate 110, and the quantum dot adhesive layer 120 is disposed on the light incident surface 111 of the light guide substrate 110.

By setting the side surface of the light guide substrate 110 as the light incident surface 111, the backlight module is a side-in type backlight module when the light guide plate 100 is applied to the backlight module. By setting the lower surface of the light guide substrate 110 as the light incident surface 111, when the light guide plate 100 is applied to a backlight module, the backlight module may be a direct-type backlight module. By disposing the quantum dot adhesive layer 120 on the light incident surface 111 of the light guide substrate 110, the light emitted from the light source 300 firstly passes through the quantum dot adhesive layer 120 and is mixed with the light emitted from the quantum dot powder in the quantum dot adhesive layer 120 to form white light, and then the light guide substrate 110 conducts light, so that most of the light is emitted from the light emitting surface 112 of the light guide substrate 110.

As shown in fig. 3, based on the scheme that the quantum dot adhesive layer 120 is disposed on the light incident surface 111 of the light guide substrate 110, further, the light incident surface 111 of the light guide substrate 110 is recessed to form a groove 111a, and the quantum dot adhesive layer 120 is disposed on a groove wall of the groove 111 a.

By disposing the quantum dot paste layer 120 on the wall of the groove 111a, the light source 300 can be disposed in the groove 111a, thereby reducing the occupied space.

Of course, in other embodiments, the light incident surface 111 of the light guide substrate 110 may also be a plane or other curved surface. When the quantum dot adhesive layer 120 is disposed on the light-emitting surface 112 of the light guide substrate 110, the light-emitting surface 112 may be a plane, a curved surface, or a structure having a groove 111a, as long as the quantum dot adhesive layer 120 can cover the groove wall surface of the groove 111 a.

Example two:

the utility model discloses still provide a backlight unit, please combine to refer to fig. 4 to fig. 6, this backlight unit includes backplate 200, light source 300 and light guide plate 100, and above-mentioned embodiment is referred to this light guide plate 100's concrete structure, because this backlight unit has adopted all technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here. The back plate 200 is formed with a mounting cavity, the light source 300 and the light guide plate 100 are both located in the mounting cavity, the light source 300 is fixedly disposed on the back plate 200, and the light incident surface 111 of the light guide substrate 110 is disposed opposite to the light source 300.

The back plate 200 is formed with a mounting cavity for mounting components of the backlight module such as an optical film, the light guide plate 100, and the light source 300 therein. Specifically, the backplate 200 includes a bottom plate 210 and a side plate 220, and the bottom plate 210 is connected to the side plate 220 and encloses a mounting cavity together with the side plate 220. The light source 300 may be fixed to the bottom plate 210 of the back plate 200 or may be fixed to the side plate 220 of the back plate 200. When the light source 300 is fixed on the bottom plate 210 of the back plate 200, the backlight module is a direct type backlight module. When the light source 300 is fixed on the side plate 220 of the back plate 200, the backlight module is a side-in type backlight module. The light incident surface 111 of the light guide substrate 110 is disposed opposite to the light source 300, so that light emitted from the light source 300 can enter the light guide substrate 110 through the light incident surface 111 of the light guide substrate 110 to guide the light, and then exit from the light exit surface 112 of the light guide substrate 110.

The quantum dot adhesive layer 120 is arranged on the light incident surface 111 and/or the light emergent surface 112 of the light guide substrate 110, so that the protective layer 130, which is originally arranged separately and faces one side of the light guide substrate 110, of the quantum dot adhesive layer 120 can be omitted, the sum of the thicknesses of the light guide substrate 110 and the quantum dot film can be reduced, and the light and thin effect and the light effect improvement can be realized conveniently.

Further, as shown in fig. 6, the light incident surface 111 of the light guide substrate 110 is recessed to form a groove 111a, the quantum dot adhesive layer 120 is disposed on a groove wall of the groove 111a, and the light source 300 extends into the groove 111 a.

The light incident surface 111 of the light guide substrate 110 is recessed to form a groove 111a, and the quantum dot adhesive layer 120 is disposed on the wall of the groove 111a, so that light emitted from the light source 300 is first mixed with light emitted from the quantum dot powder in the quantum dot adhesive layer 120 to form white light, and then the white light is emitted from the light emitting surface 112 under the light guide effect of the light guide substrate 110. The light source 300 extends into the groove 111a, so that the structure of each part of the backlight module is more compact, the occupied space is reduced, and the light source 300 is protected to a certain extent, and the light source 300 is prevented from being damaged under the action of external force. It will be appreciated that the light source 300 is spaced from the walls of the recess 111a in order to provide a certain light mixing effect.

Further, as shown in fig. 6, the light source 300 includes a lamp bead 310 and a substrate 320, the lamp bead 310 is located in the groove 111 a; the lamp beads 310 are connected to the substrate 320, and the substrate 320 is fixedly disposed on the back plate 200.

Be equipped with the circuit board on the base plate 320, lamp pearl 310 is connected on the circuit board of base plate 320 to realize the effect that control lamp pearl 310 goes on and off. In addition, by providing one substrate 320, it is convenient to fix the light source 300 on the backplate 200, so as to ensure that the light source 300 is installed more stably.

Further, referring to fig. 4 to 6, a reflective sheet 400 is disposed at the bottom of the light guide substrate 110.

The bottom of the light guide substrate 110 is the side of the light guide substrate 110 facing the bottom plate 210 of the back plate 200. By providing the reflective sheet 400 on the side of the light guide substrate 110 facing the bottom plate 210, light incident on the lower surface of the light guide substrate 110 can be reflected back into the light guide substrate 110 by the reflective sheet 400, thereby further improving the light efficiency.

Further, referring to fig. 4 to fig. 6, an optical film 500 is disposed on the top of the light guide plate 100.

By providing the optical film 500 on the top of the light guide plate 100, that is, by providing the optical film 500 on the light exit side of the light guide plate 100, the optical efficiency can be further improved and the amount of stray light can be reduced.

Example three:

the utility model discloses still provide a display device, as shown in FIG. 7, this display device includes display panel 600 and backlight unit, and this backlight unit's concrete structure refers to above-mentioned embodiment, because this display device has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, no longer gives unnecessary details one by one here. The display panel 600 is disposed on the light-emitting side of the backlight module.

The backlight module is used for providing light, and the display panel 600 is arranged on the light emitting side of the backlight module, so that the light emitted by the backlight module can be conveniently emitted to the display panel 600, and the picture can be displayed through the display panel 600.

The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the inventive concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims (10)

1. A light guide plate, comprising:

the light guide substrate is provided with a light incident surface and a light emergent surface;

the quantum dot glue layer is arranged on the light incident surface of the light guide base body and/or the light emergent surface of the light guide base body; and

and the protective layer is provided with at least two layers and is fixedly attached to one side of the quantum dot adhesive layer, which deviates from the light guide base body.

2. The light guide plate according to claim 1, wherein the protective layer has two layers, the protective layer comprising:

the water and oxygen blocking layer is arranged on one side, away from the light guide substrate, of the quantum dispensing layer; and

the mechanical isolation layer is arranged on one side, deviated from the quantum dot glue layer, of the water-oxygen isolation layer.

3. The light guide plate according to claim 1 or 2, wherein the light guide substrate has an upper surface and a lower surface opposite to each other, the light exit surface of the light guide substrate is the upper surface, and the quantum dot adhesive layer is disposed on the light exit surface of the light guide substrate.

4. The light guide plate according to claim 1 or 2, wherein the light guide substrate has an upper surface, a lower surface and a side surface connecting the upper surface and the lower surface, one of the side surface or the lower surface is a light incident surface of the light guide substrate, and the quantum dot adhesive layer is disposed on the light incident surface of the light guide substrate.

5. The light guide plate according to claim 4, wherein the light incident surface of the light guide substrate is recessed to form a groove, and the quantum dot adhesive layer is disposed on a groove wall of the groove.

6. A backlight module is characterized by comprising a back plate, a light source and the light guide plate as claimed in any one of claims 1 to 5, wherein the back plate is provided with an installation cavity, the light source and the light guide plate are both positioned in the installation cavity, the light source is fixedly arranged on the back plate, and the light incident surface of the light guide substrate is opposite to the light source.

7. The backlight module as claimed in claim 6, wherein the light incident surface of the light guide substrate is recessed to form a groove, the quantum dot adhesive layer is disposed on a groove wall of the groove, and the light source extends into the groove.

8. The backlight module of claim 7, wherein the light source comprises:

the lamp beads are positioned in the grooves; and

the base plate, the lamp pearl connect in the base plate, the base plate is fixed to be located the backplate.

9. The backlight module as claimed in claim 7, wherein a reflective sheet is disposed at the bottom of the light guide substrate;

and/or an optical film is arranged on the top of the light guide plate.

10. A display device comprising a display panel and the backlight module according to any one of claims 6 to 9, wherein the display panel is disposed on the light-emitting side of the backlight module.

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