CN218630436U

CN218630436U - Display device

Info

Publication number: CN218630436U
Application number: CN202221114288.1U
Authority: CN
Inventors: 张首臣; 郭好磊; 付坤
Original assignee: Hisense Visual Technology Co Ltd
Current assignee: Hisense Visual Technology Co Ltd
Priority date: 2022-05-10
Filing date: 2022-05-10
Publication date: 2023-03-14
Anticipated expiration: 2032-05-10

Abstract

The application discloses a display device relates to display equipment technical field for solve the lower problem of luminance of current LCD TV. The display device comprises a display panel, a back plate, a reflecting sheet, a supporting layer, a plurality of light sources and a plurality of lenses. The display panel has a display surface and a back surface disposed opposite to the display surface. The back plate is positioned on one side of the display panel close to the back surface and forms an installation cavity with the display panel in an enclosing mode. The reflector plate is positioned in the mounting cavity and provided with a plurality of avoiding holes, and each light source is positioned in one avoiding hole. The supporting layer is positioned on one side of the reflecting sheet close to the display panel and is abutted against the reflecting sheet. The plurality of lenses are arranged on one side, far away from the reflector plate, of the supporting layer, and each lens is arranged opposite to one light source. The display device is used for displaying pictures.

Description

Display device

Technical Field

The application relates to the technical field of display equipment, in particular to a display device.

Background

With the development of science and technology, liquid crystal televisions are gradually popularized and become necessary household appliances in ordinary families. The lcd tv generally includes a display screen and a light source located at the back side of the display screen, wherein light emitted from the light source is projected onto the display screen, so that a viewer can watch an image on the display screen.

In order to increase the color gamut of the lcd tv, the conventional lcd tv further includes a quantum dot film or a quantum dot diffuser plate, and the light source is generally a blue Light Emitting Diode (LED) chip. The light color domain display of the liquid crystal television can be realized by matching the quantum dot film or the quantum dot diffusion plate with the blue LED chip.

However, the above scheme is prone to cause a problem of low brightness of a display screen, and affects the viewing experience of a user.

SUMMERY OF THE UTILITY MODEL

The application provides a display device for solving the problem that the brightness of an existing liquid crystal television is low.

In order to achieve the purpose, the technical scheme is as follows:

an embodiment of the present application provides a display device, which includes a display panel, a back plate, a reflective sheet, a supporting layer, a plurality of light sources, and a plurality of lenses. The display panel has a display surface and a back surface disposed opposite to the display surface. The back plate is positioned on one side of the display panel close to the back surface and forms an installation cavity with the display panel in an enclosing mode. The reflector plate is positioned in the mounting cavity and provided with a plurality of avoiding holes, and each light source is positioned in one avoiding hole. The supporting layer is positioned on one side of the reflecting sheet close to the display panel and is abutted against the reflecting sheet. The plurality of lenses are arranged on one side, far away from the reflector plate, of the supporting layer, and each lens is arranged opposite to one light source. The lens includes a quantum dot material-a lens body and a quantum dot material.

The display device that this application embodiment provided encloses into the installation cavity by display panel and the backplate that is located display panel one side, provides installation space. Because the reflector plate is positioned in the mounting cavity, a plurality of avoiding holes are formed, and each light source is positioned in one avoiding hole. Thus, the light emitted by the light source can be emitted to the back of the display panel through the avoiding hole. The reflector plate can reflect the light emitted by the light source, so that most of light can be emitted to the back of the display panel, the utilization rate of the light is guaranteed, and the overall brightness of the display device is improved. The supporting layer positioned on one side, close to the display panel, of the reflector plate provides convenience for installation of the lenses, and the lenses can be conveniently installed on one side, far away from the reflector plate, of the supporting layer. In addition, because each lens is arranged opposite to each light source, light emitted by the light sources firstly penetrates through the supporting layer, then enters the inside of the lens, and finally exits from the lens after being refracted.

In addition, because quantum dot materials are distributed in the quantum dot material-lens main body, light emitted by the light source can be excited by the quantum dot materials to generate light of other colors when passing through the quantum dot material-lens main body, so that the color gamut range of the display device is enlarged, and wide color gamut display of the display device is realized.

In some embodiments, the quantum dot material-lens body has a transmission plane and a refractive curved surface. The transmission plane and the refraction curved surface enclose the outer contour of the quantum dot material-lens main body. The transmission plane is attached to the surface of one side, close to the display panel, of the support layer.

In some embodiments, the shape of the outer contour of the quantum dot material-lens body enclosed by the transmission plane and the refractive curved surface is hemispherical.

In some embodiments, the curved refractive surface of the quantum dot material-lens body has a depression that is depressed toward a direction near the transmission plane.

In some embodiments, the surface of the depression is hemispherical in shape.

In some implementations, the boundary of the perpendicular projection of the transmission plane on the reflector sheet coincides with the boundary of the avoidance hole. Alternatively, the boundary of the perpendicular projection of the transmission plane on the reflective sheet is located at the periphery of the boundary of the avoidance hole.

In some embodiments, the quantum dot material-lens body material includes an ultraviolet light-curable glue.

In some embodiments, the material of the support layer comprises a polyethylene terephthalate PET material.

In some embodiments, the light source comprises a light emitting diode. The light emitting diode is used to emit blue light. The quantum dot material includes a red quantum dot material and a green quantum dot material. The red quantum dot material is used for exciting blue light emitted by the light-emitting diode, so that the blue light is converted into red light. The green quantum dot material is used for exciting blue light emitted by the light-emitting diode, so that the blue light is converted into green light.

In some embodiments, the display device further comprises an adhesive. The bonding piece is positioned between the reflecting sheet and the back plate. One end of the bonding piece is bonded with one side of the reflection sheet far away from the display panel, and the other end of the bonding piece is bonded with one side of the back plate close to the reflection sheet.

In some embodiments, the plurality of avoidance holes are arranged in a plurality of rows along the first direction. Along the second direction, a plurality of avoidance holes are arranged in each row. Wherein the first direction and the second direction are perpendicular to each other.

Drawings

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

Fig. 1 is a schematic overall structure diagram of a display device according to an embodiment of the present disclosure;

fig. 2 is a schematic partial structure diagram of a display device according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of the path of light as it passes through the lens;

FIG. 4 is a schematic view of a light path after the light passes through a lens;

FIG. 5 is a schematic structural diagram of a lens separated from a supporting layer according to an embodiment of the present disclosure;

FIG. 6 is a schematic view of another lens structure according to an embodiment of the present application when the lens is separated from the supporting layer;

fig. 7 is a schematic structural diagram of a quantum dot material-lens body according to an embodiment of the present disclosure, in which a curved refractive surface has a concave portion;

fig. 8 is a schematic structural diagram of a quantum dot material-lens body according to an embodiment of the present disclosure, in which a curved refractive surface has a plurality of concave portions;

FIG. 9 is a schematic diagram of a structure in which a vertical projection of a transmission plane on a reflector plate is located at the periphery of an avoidance hole;

fig. 10 is a schematic view of the arrangement of a plurality of prisms on the support layer.

Reference numerals:

100-a display device; 1-a display panel; 2-a back plate; 20-mounting a cavity; 3-a light source; 31-a light ray; 311-red light; 312-green light; 313-blue light; 4-a reflector plate; 41-avoiding holes; 5-a support layer; 6-a lens; 61-quantum dot material-lens body; 611 — a transmission plane; 612-a refractive curved surface; 612 a-a recess; 62-quantum dot material; 7-a diffusion plate; 8-a light ray film; 9-bonding piece; 91-Release film.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present application.

In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first" and "second" may be used to explicitly or implicitly include one or more of the features. In the description of the present application, "a plurality" means two or more unless otherwise specified.

It should be noted that in practical applications, due to the limitation of the precision of the device or the installation error, the absolute parallel or perpendicular effect is difficult to achieve. The vertical, parallel or same-directional descriptions in this application are not an absolute limiting condition, but rather indicate that the vertical or parallel structural arrangement can be realized within a preset error range and achieve a corresponding preset effect, so that the technical effect of limiting features can be realized maximally, the corresponding technical scheme is convenient to implement, and the feasibility is high.

In the description of the present application, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either a fixed connection, a removable connection, or an integral connection; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In the related art, in order to increase the color gamut of the display device, the display device generally includes a blue LED chip and a quantum dot film or a quantum dot diffusion plate.

When the display device is used, the blue LED chip emits blue light, and after the blue light is incident to the quantum dot film or the quantum dot diffusion plate, the blue light is excited by quantum dots in the quantum dot film or the quantum dot diffusion plate to generate green light and red light. The color gamut range of the display device can be further improved by adjusting the proportion of the quantum dot materials in the quantum dot film and the quantum dot diffusion plate.

However, the distance between the light emitting position of the blue LED chip and the quantum dot film or the diffusion plate is relatively long, and when the blue light irradiates the quantum dot film or the diffusion plate, the luminance of the blue light is weak, and the luminance of the excited red light and the excited green light is low, so that the overall luminance of the display device is reduced to some extent, and the luminance is low.

In order to improve the brightness of the display device, more incremental films or prism sheets may be additionally disposed in the display device to improve the brightness. However, this increases the cost of the product as a whole, thereby reducing the competitiveness of the product.

Based on this, an embodiment of the present application provides a display device, as shown in fig. 1, fig. 1 is a schematic diagram of an overall structure of a display device 100 provided in an embodiment of the present application. The display device 100 may include a display panel 1, a rear plate 2, a plurality of light sources 3, a reflective sheet 4, a support layer 5, and a plurality of lenses 6.

As shown in fig. 1, the display panel 1 may include a display surface 11 and a rear surface 12 disposed opposite the display surface 11. The display panel 1 may be a liquid crystal display panel, in which a plurality of sub-pixels are distributed, and after the light emitted from the light source 3 is irradiated to the sub-pixels, the sub-pixels can emit light to display an image.

The sub-pixels are the minimum imaging units of the display panel 1, and a plurality of sequentially adjacent sub-pixels emitting different light rays may form a pixel. For example, a red (R) sub-pixel, a green (G) sub-pixel, and a blue (B) sub-pixel, which are adjacent in this order, constitute one pixel. In this case, the ratio of the R, G, B light in different pixels can be adjusted to achieve the purpose of adjusting the display color of the pixels.

With continued reference to fig. 1, the back plate 2 is located on a side of the display panel 1 near the back surface 12, and encloses a mounting cavity 20 with the display panel 1. For example, as shown in fig. 1, the back plate 2 and the display panel 1 may enclose a substantially trapezoidal mounting cavity 20.

The reflector plate 4 is located in the installation cavity 20, and is provided with a plurality of avoiding holes 41, and each light source 3 is located in one avoiding hole 41. Thereby, the light emitted by the light source 3 can exit to the back surface 12 of the display panel 1 through the avoiding hole 41. The reflector plate 4 can reflect the light emitted by the light source 3, so that most of light can be emitted to the back 11 of the display panel 1, the utilization rate of the light is ensured, and the overall brightness of the display device 100 is improved. Illustratively, as shown in fig. 1, the light source 3 is located on a side of the display panel 1 near the back surface 12, and emits light toward the back surface 12 of the display panel 1.

With continued reference to fig. 1, the support layer 5 is located on a side of the reflective sheet 4 close to the display panel 1, and abuts against the reflective sheet 4. A plurality of lenses 6 are mounted on a side of the support layer 5 adjacent to the display panel 1, and each lens 6 is disposed opposite one of the light sources.

Thus, the light emitted from each light source 3 is transmitted through the support layer 6, enters the lens 6, and is refracted and emitted from the lens 6. Because light can take place the refraction through lens 6 for the exit angle of light is bigger, and the dispersion that light is more for it is more even to go out light zone, finally makes picture display's luminance more even. Meanwhile, the support layer 5 can be used as a support for a plurality of lenses 6, so that the lenses 6 can be more conveniently and easily mounted and fixed.

As shown in fig. 2, fig. 2 is a schematic partial structure diagram of a display device according to an embodiment of the present disclosure, and the lens 6 includes a quantum dot material-lens body 61 and a quantum dot material 62. Quantum dot material 62 is distributed within the quantum dot material-lens body 61.

Thus, as shown in fig. 3, fig. 3 is a schematic structural diagram of the light emitted from the light source 3 when the light passes through the quantum dot material-lens body 61. When the light 31 emitted from the light source 3 passes through the quantum dot material-lens body 61, the light is excited by the quantum dot material 62 to generate light of other colors, so that the color gamut of the display device is enlarged, and the wide color gamut display of the display device is realized.

Meanwhile, because the distance between the quantum dot material-lens main body 61 and the light source 3 is short, when the light source 3 irradiates the inside of the quantum dot material-lens main body 61, the intensity of the light emitted by the light source 3 is high, and the intensity of the light of other colors formed after being excited by the quantum dot material 62 is also high, so that the overall brightness of the display device is not attenuated, and the brightness is high.

Thus, as shown in fig. 1, the display device 100 provided in the embodiment of the present invention provides an installation space by enclosing the display panel 1 and the back plate 2 located at one side of the display panel 1 into the installation cavity 20. Since the reflector 4 is located in the installation cavity 20, a plurality of avoiding holes 41 are formed, and each light source 3 is located in one avoiding hole 41. In this way, the light emitted by the light source 3 can exit through the avoiding hole 41 to the back surface 12 of the display panel 1. The reflector plate 4 can reflect the light emitted by the light source 3, so that most of the light can be emitted to the back 11 of the display panel 1, the utilization rate of the light is ensured, and the overall brightness of the display device 100 is improved. The support layer 5 on the side of the reflector 4 close to the display panel 1 provides convenience for mounting the lens 6, and a plurality of lenses 6 can be conveniently mounted on the side of the support layer 5 far from the reflector 6. In addition, since each lens 6 is disposed opposite to each light source 3, light emitted from the light source 3, after being transmitted through the support layer 6, enters the inside of the lens 6, and finally exits the lens 6 after being refracted.

In addition, as shown in fig. 3, the quantum dot material 62 is distributed in the quantum dot material-lens main body 61, when the light 31 emitted by the light source 3 passes through the quantum dot material-lens main body 61, the light is excited by the quantum dot material 62 to generate light of other colors, so that the color gamut range of the display device is enlarged, and the wide color gamut display of the display device is realized, and since the distance between the quantum dot material-lens main body 61 and the light source 3 is relatively short, when the light source 3 irradiates the inside of the quantum dot material-lens main body 61, the intensity of the light emitted by the light source 3 is relatively high, and the intensity of the light of other colors formed after being excited by the quantum dot material 62 is relatively high, so that the brightness of the whole display device is not attenuated, and the brightness is relatively high.

In some embodiments, the light source 3 may comprise a light emitting diode for emitting blue light. The quantum dot material 62 may include a red quantum dot material as well as a green quantum dot material. The red quantum dot material is used for exciting blue light emitted by the light-emitting diode, so that the blue light is converted into red light. The green quantum dot material is used for exciting blue light emitted by the light-emitting diode, so that the blue light is converted into green light.

Thus, as shown in fig. 4, fig. 4 is a schematic diagram of the light path of the light ray 31 after passing through the lens 6; after passing through the lens 6, the light emitted from the light source 3 can emit light 31 of three colors, namely red light 311, green light 312 and blue light 313, to form light of narrow-spectrum red, green and blue bands. The light rays 31 of the three colors are mixed in the installation cavity 20 to obtain white light, and finally, the white light can be emitted to the display panel 1.

In order to further process the emitted light, in some embodiments, as shown in fig. 4, the display device 100 may further include a diffuser 7 and an optical film 8. The diffusion plate 7 is located between the support layer 5 and the display panel 1, and can diffuse light, so that the light emitted by the light source 3 is more uniform.

An optical film 8 is positioned between the diffuser plate 7 and the display panel 1 to further process the light. The light diaphragm 7 may include a brightness enhancement film 81 and a prism film 82. The brightness of the light beam can be improved by the brightness enhancement sheet 81, and when the light beam passes through the prism sheet 82, the dispersed light beam can be emitted in a certain angle in a concentrated manner according to the total reflection and refraction principles, so that the brightness in the angle range is improved.

Fig. 5 is a schematic structural diagram of a lens 6 separated from a supporting layer 5 according to an embodiment of the present disclosure, as shown in fig. 5. In some embodiments, the quantum dot material-lens body 61 may have a transmission plane 611 and a refractive curved surface 612. The transmission plane 611 and the refraction curved surface 612 enclose an outer contour of the quantum dot material-lens body 61. The transmission plane 611 is attached to a surface of the support layer 5 on a side close to the display panel.

Since the quantum dot material-lens body 61 has the transmission plane 611, the surface is flat, and the quantum dot material-lens body 61 is conveniently disposed on the surface of the support layer 5. Illustratively, the transmission plane 611 of the quantum dot material-lens body 61 may be fixed on the surface of the support layer 5 on the side close to the display panel by means of adhesion.

Meanwhile, since the quantum dot material-lens body 61 has the refractive curved surface 612, most of the light emitted from the light source 3 enters the quantum dot material-lens body 61 through the transmission plane 611. Then, the light rays are emitted from the refraction curved surface 612, and since the refraction curved surface 612 is a curved surface, when the light rays are refracted by the refraction curved surface 612, the diffusion angle of the light rays is large, so that the distribution range of the light rays is large.

With continued reference to fig. 5, in some embodiments, the shape of the outer contour of the quantum dot material-lens body 61 enclosed by the transmission plane 611 and the curved refractive surface 612 may be a hemisphere. I.e. the quantum dot material-lens body 61 is hemispherical in shape. At this time, the hemispherical plane is the transmission plane 611, and the hemispherical spherical surface is the refraction curved surface 612.

Like this, when quantum dot material-lens main part 61's shape is the hemisphere, the light that light source 3 transmitted both can have a great diffusion angle after the refraction of refraction curved surface 612, also can make the distribution of light in all directions comparatively even to make light more even in each position distribution, the light-emitting effect is better.

Of course, in other embodiments, the outer contour of the quantum dot material-lens body 61 enclosed by the transmission plane 611 and the curved refractive surface 612 may have other shapes. Exemplarily, as shown in fig. 6, fig. 6 is a schematic structural diagram of another lens 6 provided in the embodiments of the present application when the lens 6 is separated from the support layer 5. The quantum dot material-lens body 61 may also be tapered in shape. Of course, the shape of the quantum dot material-lens body 61 may also be other shapes.

It is understood that the quantum dot material-lens body 61 may be selected from a common shape for the convenience of processing the quantum dot material-lens body 61. Thus, the quantum dot material-lens body 61 can be manufactured using a simple mold, and the manufacturing process is simpler and easier to manufacture.

The manufacturing process of the lens will be briefly described below. In some embodiments, the material of the lens may include an Ultraviolet light curable (UV) glue. Therefore, when the lens is manufactured, the quantum dot material is firstly added into the UV adhesive material, and then the UV adhesive material added with the quantum dot material is stamped by using a mould, so that the lens main body with a certain shape is obtained. And finally, curing the UV glue added with the quantum dot material by using a UV light source lamp to obtain the lens.

Meanwhile, the UV adhesive material is adopted to manufacture the lens, so that the light rays can be guaranteed to be refracted when passing through the lens, and the effect of increasing the diffusion angle is realized. Meanwhile, the UV adhesive material has high transmittance, so that light can smoothly penetrate through the UV adhesive material, and the light can smoothly penetrate through the UV adhesive material. Of course, the lens may be made of other materials as long as the material has a good transmittance and can refract and emit light.

Also, in some embodiments, the material of the support layer 5 may include Polyethylene terephthalate (PET). The PET material has better transmissivity, can guarantee that the light of light source 3 transmission can be better the inside that penetrates the supporting layer and enter into lens main body.

As shown in fig. 7, fig. 7 is a schematic structural diagram of the quantum dot material-lens body 61 according to an embodiment of the present disclosure when the refractive curved surface 612 has a concave portion 612a, in order to make the light distribution emitted by the light source 3 more dispersed, in some embodiments, the refractive curved surface 612 may have a concave portion 612a, and the concave portion 612a is concave toward a direction close to the transmission plane.

Therefore, as shown in fig. 7, a part of the light ray 31 emitted by the light source reaching the concave portion 612a may be refracted twice, that is, after being refracted for the first time at the concave portion 612a, the part of the light ray is reflected to the inside of the quantum dot material-lens body 61, and then reaches other positions of the refractive curved surface 612 to be refracted and emitted. In this way, the emission angle of the light rays can be further increased, so that the divergence angle of the light rays 31 is further increased.

As shown in fig. 7, in some embodiments, the surface of the depression 612a may also be spherical in shape. In this way, the light reaching the concave portion 612a can be refracted in all directions, and the distribution of the light 31 is further dispersed and uniform. Of course, the recessed portion 612a may have another shape, and for example, the surface of the recessed portion 612a may have another shape such as a tapered shape.

As described above, the shape of the concave portion 612a may be a regular shape for facilitating the lens fabrication. Therefore, the structure of the mold for manufacturing the lens is simpler, and the mold is convenient to manufacture. Of course, the curved refractive surface 612 may not be provided with the recess 612a.

In some embodiments, the recess 612a may be disposed opposite to the center of the light source 3, that is, the perpendicular projection of the recess 612a to the light source 3 is located at the center of the light source located on the refractive curved surface 612. For example, as shown in fig. 7, when the refractive curved surface 612 is a spherical surface, the depression 612a may be provided at the vertex of the refractive curved surface 612, i.e., at the farthest position from the transmission plane in the refractive curved surface 612.

Thus, as shown in fig. 7, the light rays 31 emitted by the light source and emitted vertically upwards can be diffused towards the periphery, so that the number of the light rays 31 emitted vertically upwards is reduced, more light rays are distributed towards the periphery, the light distribution is more uniform, and the brightness of the display picture is more uniform.

It is understood that, in some embodiments, as shown in fig. 8, fig. 8 is a schematic structural diagram of the quantum dot material-lens body 61 provided in the embodiments of the present application when the curved refractive surface 612 has a plurality of concave portions 612a. The plurality of concave parts 612a are arranged at different positions on the refraction curved surface 612, so that light can be dispersed more, and the dispersion effect is better. Of course, as shown in fig. 7, the number of the concave portion 612a may be one, and when the lens has only one concave portion 612a, the shape is more regular, and the manufacturing is easier and more convenient.

In order to make the light enter the inside of the lens body as much as possible, in some embodiments, as shown in fig. 9, fig. 9 is a schematic structural view when the perpendicular projection of the transmission plane 611 on the reflective sheet 4 is located at the periphery of the avoiding hole 41, and the boundary of the perpendicular projection of the transmission plane 611 on the reflective sheet 4 is located at the periphery of the boundary of the avoiding hole 41.

Thus, as shown in fig. 9, the quantum dot material-lens body 61 above the support layer 5 can almost block the avoiding hole 41, and most of the light emitted from the light source needs to enter the quantum dot material-lens body 61 through the transmission plane 611, and then exit after being refracted by the refraction curved surface 612. The amount of light directly emitted from the edge of the avoiding hole 41 into the mounting cavity without passing through the quantum dot material-lens body 61 is reduced.

Therefore, by means of the above scheme, on one hand, the light divergence effect is ensured, so that light is emitted dispersedly, and on the other hand, a sufficient amount of light is excited by the quantum dot material 62 (fig. 3) in the quantum dot material-lens main body 61 and is converted into light of other colors, so that the display device is ensured to have a wider color gamut.

In some embodiments, as shown in fig. 8, the boundary of the perpendicular projection of the transmission plane 611 on the reflection sheet 4 may also coincide with the boundary of the avoidance hole 41. Similarly, when the boundaries of the quantum dot material and the lens body are overlapped, it is better to ensure that most of the light emitted by the light source can enter the quantum dot material-lens body 61. On the other hand, the size of the quantum dot material-lens body 61 can be reduced, the material consumption can be reduced, and the manufacturing cost can be reduced.

In some embodiments, as shown in fig. 9, the display device may further include an adhesive 9. The adhesive 9 is located between the reflective sheet 4 and the backsheet 2 (fig. 6). One side of the adhesive 9 is adhered to the side of the reflection sheet 4 far from the display panel, and the other side is adhered to the side of the back plate near the reflection sheet 4. Therefore, the reflecting sheet 4 can be well fixed on the back plate, and the fixing effect is good. As shown in the figure, in order to facilitate the setting of the light source, the bonding member 9 may be provided with a through hole, and the through hole and the avoiding hole 41 are arranged oppositely, so that the light source can be better fixed.

The adhesive member 9 may be double-faced foam adhesive, and when fixing, one side of the adhesive member 9 is firstly adhered to one side of the reflective sheet 4, and then the other side of the adhesive member 9 is adhered to the back plate. As shown in the drawing, the release film 91 may be bonded to the bonding surface of the adhesive 9 when not in use, and the release film 91 may be directly peeled off to bond the bonding surface to the bonded member when in use.

As shown in fig. 10, fig. 10 is a schematic view of the arrangement of a plurality of prisms 6 on the support layer 5; in some embodiments, the plurality of lenses 6 are arranged in a plurality of rows along the first direction X. A plurality of lenses 6 are arranged in each row along the second direction Y. The first direction X and the second direction Y are perpendicular to each other. Thus, as shown, the plurality of lenses 6 on the support layer 5 are arranged in a matrix. The first direction X may be a length direction of the support layer 5, and the second direction Y may be a width direction of the support layer 5.

It will be appreciated that since the plurality of lenses 6 are arranged in a matrix on the support layer 5, that is to say the plurality of light sources are also arranged in a matrix. Like this, after the light of a plurality of light source launches through the quantum dot's in the divergence of a plurality of lenses 6 and the lens 6, the light distribution of outgoing is comparatively dispersed and even to make the luminance of the holistic picture of display device comparatively even, the display effect is better.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A display device, comprising:

a display panel having a display surface and a back surface disposed opposite to the display surface;

the back plate is positioned on one side of the display panel close to the back surface and forms an installation cavity with the display panel in an enclosing mode;

the reflector plate is positioned in the mounting cavity and is provided with a plurality of avoiding holes;

a plurality of light sources, each of the light sources being located within one of the avoidance holes;

the supporting layer is positioned on one side, close to the display panel, of the reflector plate and abuts against the reflector plate;

the lenses are arranged on one side, far away from the reflector plate, of the supporting layer, and each lens is arranged opposite to one light source; wherein the lens comprises:

quantum dot material-lens body; and (c) a second step of,

a quantum dot material.

2. The display device of claim 1, wherein the quantum dot material-lens body has a transmission plane and a refractive curved surface; the transmission plane and the refraction curved surface enclose the outer contour of the quantum dot material-lens main body; the transmission plane is attached to the surface of one side, close to the display panel, of the support layer.

3. The display device as claimed in claim 2, wherein the outer contour of the quantum dot material-lens body enclosed by the transmission plane and the curved refractive surface is shaped as a hemisphere.

4. The display device according to claim 2 or 3, wherein the refractive curved surface of the quantum dot material-lens body has a depression; the recess portion is recessed toward a direction close to the transmission plane.

5. The display device according to claim 4, wherein a surface of the recess is hemispherical in shape.

6. The display device according to claim 2, wherein a boundary of a perpendicular projection of the transmission plane on the reflective sheet coincides with a boundary of the avoidance hole, or wherein a boundary of a perpendicular projection of the transmission plane on the reflective sheet is located at a periphery of a boundary of the avoidance hole.

7. The display device according to claim 1, wherein the light source comprises:

a light emitting diode for emitting blue light;

the quantum dot material includes:

the red quantum dot material is used for exciting blue light emitted by the light-emitting diode and converting the blue light into red light;

the green quantum dot material is used for exciting blue light emitted by the light-emitting diode, so that the blue light is converted into green light.

8. The display device according to claim 1, further comprising:

an adhesive member positioned between the reflective sheet and the back plate; one side of the bonding piece is bonded with one side of the reflection sheet far away from the display panel, and the other side of the bonding piece is bonded with one side of the back plate close to the reflection sheet.

9. The display device according to claim 1, wherein a plurality of the lenses are arranged in a plurality of rows in the first direction; a plurality of the lenses are arranged in each row along a second direction; wherein the first direction and the second direction are perpendicular to each other.