Display device, manufacturing method of display device and displayer

Abstract

The invention relates to the technical field of optical display, in particular to a display device, a manufacturing method of the display device and a displayer. The backlight module is driven by the backlight driver to provide backlight for the display panel on the non-display surface of the display panel, light rays of the side light sources enter the reflecting layer through the light guide effect of the light guide plate, the reflecting layer comprises a first substrate, a matrix and a concave lens structure, the matrix is arranged on the first substrate to form containing grooves corresponding to sub-pixels, and the concave lens structure is arranged on the first substrate. The concave lens structure is arranged in the containing groove, the light entering the reflecting layer is reflected to the display panel from the light guide plate through the photonic crystals with the multiple primary colors, and the light forms light with the multiple primary colors under the action of the photonic crystals. The primary color light can enter the display panel to increase the color of sub-pixels or replace a color film substrate in an existing display panel, so that the display effect of the display panel is improved, and the thickness of the display panel is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of optical display, and in particular to a display device, a method for manufacturing a display device, and a display. Background Art

[0002] In recent years, with the rapid development of downstream application fields such as consumer electronics, automobiles, and home appliances, the market demand for liquid crystal display devices has continued to grow, and the scale of the industry has continued to expand. At the same time, the rise of new display technologies such as O-LED, Mini LED, and Micro LED has brought new growth momentum and industrial upgrading opportunities to the display industry. These new display technologies have promoted the development of display devices towards higher contrast, lower power consumption, and thinner and lighter. Therefore, in order to improve the competitiveness of liquid crystal display devices in the display industry, it is necessary to further improve their display effects. Summary of the invention

[0003] The purpose of the present application is to provide a display device, a method for manufacturing a display device, and a display.

[0004] The present application provides a display device, comprising: a display panel, comprising a plurality of sub-pixels, the display panel having a non-display surface; a backlight module, the backlight module comprising: a light guide plate, arranged on a side of the display panel facing the non-display surface; a side light source, arranged on an outer side of the light guide plate in a radial direction of the light guide plate; a reflective layer, arranged on a side of the light guide plate away from the display panel, the reflective layer comprising a first substrate, a matrix and a concave mirror structure, the matrix being arranged on the first substrate to form a receiving groove corresponding to the sub-pixel, the concave mirror structure being arranged in the receiving groove, the concave mirror structure comprising a carrier and a photonic crystal, the photonic crystal being filled in the carrier, the carrier forming a concave mirror surface on the side facing the light guide plate, and the photonic crystal having a plurality of primary colors.

[0005] In an exemplary embodiment of the present application, the display panel has a display surface, and the display panel includes an array substrate, a second substrate and a liquid crystal, the liquid crystal is arranged between the array substrate and the second substrate, the array substrate is arranged close to the light guide plate, and the second substrate is arranged away from the light guide plate, the second substrate is a transparent substrate, and the light forms a plurality of primary color lights under the action of the photonic crystal, and the plurality of primary color lights are sequentially emitted from the display surface through the array substrate, the liquid crystal and the second substrate.

[0006] In an exemplary embodiment of the present application, the light emitted by the side light source is incident on the concave mirror via the light guide plate, and after being converged by the concave mirror, the light is incident on the non-display surface via the light guide plate.

[0007] In an exemplary embodiment of the present application, the backlight module also includes a convex mirror structure, which has a convex mirror surface on the side facing the display panel. The light entering the light guide plate forms an outgoing light through the convex mirror structure, and the outgoing light is perpendicular to the non-display surface.

[0008] In an exemplary embodiment of the present application, the number of the convex mirror structures and the concave mirror structures is the same, and the convex mirror structures are arranged correspondingly to the concave mirror structures.

[0009] In an exemplary embodiment of the present application, the side wall of the concave mirror structure abuts against the side wall of the receiving groove, and in the height direction, the height of the side wall of the concave mirror structure is equal to the height of the side wall of the receiving groove.

[0010] The present application also provides a method for manufacturing a display device, including a method for manufacturing a backlight module, the method for manufacturing the backlight module comprising: coating a photoresist material layer on a first substrate, forming a matrix on the photoresist material layer, and forming a receiving groove in the matrix; adding a solution of photonic crystals into the receiving groove, setting a shaping mold at the notch of the receiving groove, the shaping mold having a convex surface, the convex surface being pressed into the solution of the photonic crystals, and forming a concave mirror structure after curing the solution of the photonic crystals, the concave mirror structure comprising a carrier and a photonic crystal, the photonic crystal being filled in the carrier, the side of the carrier facing away from the bottom wall of the receiving groove forming a concave mirror surface, and the photonic crystals having multiple primary colors.

[0011] In an exemplary embodiment of the present application, the manufacturing method of the backlight module also includes: arranging a light guide plate on a side of the matrix away from the first substrate; arranging a convex mirror structure on a side of the light guide plate away from the matrix, the convex mirror structure having a convex mirror surface on the side away from the matrix, and the light incident on the light guide plate forms an outgoing light through the convex mirror structure, and the outgoing light is perpendicular to the non-display surface.

[0012] In an exemplary embodiment of the present application, a method for manufacturing a display panel is included, and the method for manufacturing a display panel includes: adding liquid crystal on an array substrate; arranging a second substrate on the array substrate, and encapsulating the liquid crystal through the second substrate and the array substrate, the second substrate is a transparent substrate, and the light forms a plurality of primary color lights under the action of the photonic crystal, and the plurality of primary color lights are sequentially emitted from the display surface of the display panel through the array substrate, the liquid crystal and the second substrate; and respectively arranging polarizers on a side of the array substrate away from the second substrate and on a side of the second substrate away from the array substrate.

[0013] The present application also provides a display, comprising the above-mentioned display device.

[0014] A display device, a manufacturing method of a display device and a display of the present application scheme have the following beneficial effects: the backlight module provides backlight for the display panel on the non-display surface of the display panel under the drive of the backlight driver, the light of the side light source enters the reflective layer through the light guiding effect of the light guide plate, the reflective layer includes a first substrate, a matrix and a concave mirror structure, the matrix is ​​arranged on the first substrate to form a receiving groove corresponding to the sub-pixel, the concave mirror structure is arranged in the receiving groove, the light entering the reflective layer is reflected from the light guide plate to the display panel through the photonic crystal with multiple primary colors, the light forms multiple primary color light under the action of the photonic crystal, the primary color light can be injected into the display panel to increase the color of the sub-pixel or replace the color film substrate in the existing display panel, thereby improving the display effect of the display panel and reducing the thickness of the display panel. In addition, because the concave mirror structure can converge the light or form a parallel light beam through the reflection effect, the light after entering the concave mirror surface from the light guide plate can be concentrated and injected into each sub-pixel after the reflection effect of the photonic crystal corresponding to each sub-pixel, thereby reducing the probability of light crosstalk and further improving the display effect.

[0015] Other features and advantages of the present application will become apparent from the following detailed description, or may be learned in part by the practice of the present application.

[0016] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 is a schematic structural diagram of a display device in an embodiment of the present invention;

[0019] Figure 2 Schematic diagram of the principle of light reflection by the concave mirror structure in an embodiment of the present invention;

[0020] Figure 3 Schematic diagram of the principle of light reflection by the convex mirror structure in an embodiment of the present invention;

[0021] Figure 4 is a schematic flow chart of a method for manufacturing a backlight module in an embodiment of the present invention;

[0022] Figure 5 is a schematic structural diagram of forming a matrix on a first substrate in an embodiment of the present invention;

[0023] Figure 6 is a schematic diagram of a first structure of a concave mirror structure formed in an embodiment of the present invention;

[0024] Figure 7 is a second structural schematic diagram of a concave mirror structure formed in an embodiment of the present invention;

[0025] Figure 8 is a structural schematic diagram of a light guide plate and a convex mirror structure arranged on a concave mirror structure in an embodiment of the present invention;

[0026] Fig. 9 is a schematic diagram of a structure in which side light sources are arranged on both sides of a light guide plate in an embodiment of the present invention;

[0027] Fig.10 is a schematic flow chart of a method for manufacturing a display panel according to an embodiment of the present invention;

[0028] Fig.11 is a schematic diagram of a structure in which liquid crystal is added to an array substrate in an embodiment of the present invention;

[0029] Fig.12 is a schematic structural diagram of a second substrate for display panel packaging in an embodiment of the present invention;

[0030] Fig.13 is a schematic structural diagram of a polarizer provided in an embodiment of the present invention;

[0031] Fig.14 It is a schematic structural diagram of the assembly of a backlight module and a display panel in an embodiment of the present invention.

[0032] Description of reference numerals:

[0033] 10. Display panel; 11. Sub-pixel; 12. Non-display surface; 13. Display surface; 14. Array substrate; 15. Second substrate; 16. Liquid crystal; 20. Backlight module; 21. Light guide plate; 22. Side light source; 23. Reflective layer; 231. First substrate; 232. Matrix; 2321. Accommodating groove; 23211. Notch; 233. Concave mirror structure; 2331. Carrier; 23311. Concave mirror surface; 2332. Photonic crystal; 25. Convex mirror structure; 251. Convex mirror surface; 30. Photoresist material layer; 40. Molding mold; 41. Convex surface; 50. Polarizer. DETAILED DESCRIPTION

[0034] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this application will be more comprehensive and complete and fully convey the concept of the example embodiments to those skilled in the art.

[0035] In addition, described feature, structure or characteristic can be combined in one or more embodiments in any suitable manner. In the following description, many specific details are provided to provide a full understanding of the embodiments of the present application. However, those skilled in the art will appreciate that the technical scheme of the present application can be put into practice without one or more of the specific details, or other methods, components, devices, steps, etc. can be adopted. In other cases, known methods, devices, realizations or operations are not shown or described in detail to avoid blurring the various aspects of the application.

[0036] The present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the technical features involved in the various embodiments of the present application described below can be combined with each other as long as they do not conflict with each other. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limiting the present application.

[0037] It should be noted that the "multiple" mentioned in this article refers to two or more. "And / or" describes the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0038] In recent years, with the rapid development of downstream application fields such as consumer electronics, automobiles, and home appliances, the market demand for liquid crystal display devices has continued to grow, and the scale of the industry has continued to expand. At the same time, the rise of new display technologies such as O-LED, Mini LED, and Micro LED has brought new growth momentum and industrial upgrading opportunities to the display industry. These new display technologies have promoted the development of display devices towards higher contrast, lower power consumption, and thinner and lighter. Therefore, in order to improve the competitiveness of liquid crystal display devices in the display industry, it is necessary to further improve their display effects.

[0039] Existing liquid crystal display devices are mainly divided into two parts: display panel and backlight module. The display panel can convert digital signals into visible images. At the same time, it can also control display effects such as color, brightness, contrast, etc., to provide clear images and accurate color performance. The backlight module is used to provide backlight for the display panel under the drive of the backlight driver. A high-quality backlight module can provide sufficient and uniform light, so that the liquid crystal display can present a clear and bright image. However, the current improvement and enhancement of the display effect is mainly concentrated on the display panel part, while the backlight module is mainly focused on improving the thinness of the display. Therefore, innovation has certain limitations and cannot achieve breakthrough improvements. If the display effect and thinness can be improved at the same time through the innovative design of the backlight module, it will be a major innovation in the field of liquid crystal display and provide a new direction for the reform of the field of liquid crystal display.

[0040] In order to solve the above technical problems, the present application provides a display device, as shown in the figure, including a display panel 10 and a backlight module 20; the display panel 10 includes a plurality of sub-pixels 11, and the display panel 10 has a non-display surface 12; the backlight module 20 includes a light guide plate 21, a side light source 22 and a reflective layer 23: the light guide plate 21 is arranged on the side of the display panel 10 facing the non-display surface 12; the side light source 22 is arranged on the outer side of the light guide plate 21 in the radial direction of the light guide plate 21; the reflective layer 23 is arranged on the side of the light guide plate 21 away from the display surface On one side of the plate 10, the reflective layer 23 includes a first substrate 231, a matrix 232 and a concave mirror structure 233. The matrix 232 is arranged on the first substrate 231 to form a receiving groove 2321 corresponding to the sub-pixel 11. The concave mirror structure 233 is arranged in the receiving groove 2321. The concave mirror structure 233 includes a carrier 2331 and a photonic crystal 2332. The photonic crystal 2332 is filled in the carrier 2331. The carrier 2331 forms a concave mirror surface 23311 toward the side of the light guide plate 21. The photonic crystal 2332 has multiple primary colors.

[0041] In some embodiments, the periodic structure of the photonic crystal 2332 results in the generation of a photonic band gap, which prevents the propagation of light with a specific wavelength. Therefore, the photonic crystal 2332 is called an optical semiconductor because they have the ability to control the flow of photons, just as semiconductors control electrons. In recent years, the photonic crystal 2332 material has been used as a reflective substrate to enhance the intensity of light, while matching the corresponding photonic band gap with the wavelength of light, thereby achieving the regulation of the luminescent color. Therefore, driven by the backlight driver, the backlight module 20 provides backlight for the display panel 10 on the non-display surface 12 of the display panel 10, and the light of the side light source 22 enters the reflective layer 23 through the light guiding effect of the light guide plate 21. The reflective layer 23 includes a first substrate 231, a matrix 232 and a concave mirror structure 233. The matrix 232 is arranged on the first substrate 231 to form a receiving groove 2321 corresponding to the sub-pixel 11, and the concave mirror structure 233 is arranged in the receiving groove 2321. The light entering the reflective layer 23 is reflected from the light guide plate 21 to the display panel 10 by the photonic crystal 2332 having multiple primary colors. The light forms multiple primary color light under the action of the photonic crystal 2332. The primary color light can be injected into the display panel 10 to increase the color of the sub-pixel 11 or replace the color film substrate in the existing display panel 10, thereby improving the display effect of the display panel 10 and reducing the thickness of the display panel 10. Furthermore, since the concave mirror structure 233 can converge light or form a parallel light beam through reflection, after the light is incident from the light guide plate 21 into the concave mirror surface 23311, it can be focused and emitted into each sub-pixel 11 after being reflected by the photonic crystal 2332 corresponding to each sub-pixel 11, thereby reducing the probability of light crosstalk and further improving the display effect.

[0042] In some embodiments, the primary colors of the photonic crystal 2332 include red, green and blue. The photonic crystal 2332 with different primary colors can generate corresponding red light, green light and blue light after being regulated. In this application, red light, green light and blue light are defined as primary color light (i.e., primary colors of light). These three primary color lights can be mixed in different proportions to generate various colored lights. For example, red, green and blue light will form white light after mixing.

[0043] In some embodiments, reference Figure 1 As shown, the display panel 10 has a display surface 13, and the display panel 10 includes an array substrate 14, a second substrate 15 and a liquid crystal 16. The liquid crystal 16 is arranged between the array substrate 14 and the second substrate 15. The array substrate 14 is arranged close to the light guide plate 21, and the second substrate 15 is arranged away from the light guide plate 21. The second substrate 15 is a transparent substrate. The light forms a plurality of primary color light under the action of the photonic crystal 2332, and the plurality of primary color light is sequentially emitted from the display surface 13 through the array substrate 14, the liquid crystal 16 and the second substrate 15. Therefore, after the light forms a plurality of primary color light through the regulation of the photonic crystal 2332, the picture display can also be realized. The existing display panel 10 includes an array substrate 14, a color filter substrate and a liquid crystal 16. The color filter substrate in the existing display panel 10 is replaced by the second substrate 15 in the present application. Since the second substrate 15 is a transparent substrate, a basic glass substrate can be selected, which can reduce the thickness and simplify the manufacturing process compared with the color filter substrate. It breaks the traditional idea of ​​improving and optimizing the liquid crystal 16 display device. By changing the structural design of the display, optimizing the preparation process and using the new photonic crystal 2332 material, it effectively improves the display effect and thinness of the display, while simplifying the manufacturing process and reducing the manufacturing cost. Since the color rendering principle of the existing color film substrate only allows light of the corresponding color wavelength to pass through, light of other wavelengths will be absorbed by the filter of the color film substrate, so the transmittance is low and the loss of the backlight module 20 is large. However, the present application directly converts the backlight module 20 into the corresponding primary color light, the utilization rate of the backlight module 20 is increased, and the contrast is effectively improved. Therefore, compared with the existing display device, the display device of the present application not only makes the product thinner and lighter, but also improves the display effect.

[0044] In some embodiments, reference Figure 1 As shown, the side wall of the concave mirror structure 233 abuts against the side wall of the accommodating groove 2321, and in the height direction, the height of the side wall of the concave mirror structure 233 is equal to the height of the side wall of the accommodating groove 2321. Since the matrix 232 is a black matrix 232, the black matrix 232 can absorb light and reduce the refractive index of light, thereby forming a concave mirror surface 23311 that can receive more light, increase the refractive index of light, and improve the display effect.

[0045] In some embodiments, in combination Figure 1 and Figure 2As shown, the light emitted by the side light source 22 enters the concave mirror 23311 through the light guide plate 21, and the light is converged by the concave mirror 23311 and then enters the non-display surface 12 through the light guide plate 21. In order to make the movement path of the light after being reflected by the photonic crystal 2332 close to the middle and unable to spread around, the photonic crystal 2332 is designed as a concave mirror 23311. The principle is shown in Figure 2. When the light is irradiated to the concave mirror 23311, the light will be reflected and converged at the focus in front of the concave mirror 23311. If the light source is at the focus, the light emitted from the light source will form a parallel light beam after being reflected by the concave mirror 23311. Therefore, it is only necessary to place the focus of the concave mirror 23311 of the photonic crystal 2332 on the light guide plate 21 to ensure that there will be no light crosstalk after the light is reflected by the photonic crystal 2332 corresponding to each sub-pixel 11.

[0046] In some embodiments, in combination Figure 1 and Figure 3 As shown, the backlight module 20 also includes a convex mirror structure 25. The convex mirror structure 25 has a convex mirror surface 251 on the side facing the display panel 10. The light incident on the light guide plate 21 forms an outgoing light through the convex mirror structure 25, and the outgoing light is perpendicular to the non-display surface 12. Although the photonic crystals 2332 of the radiation layer can solve the problem of light crosstalk of the reflected light in the light guide plate 21, there will be a certain angle when the light is emitted through the light guide plate 21. If the movement trajectory of the light is not changed, the primary color light will also crosstalk in the display panel 10, reducing the display effect. Therefore, the number of convex mirror structures 25 and concave mirror structures 233 is the same, and the convex mirror structure 25 is set corresponding to the concave mirror structure 233. The convex mirror surface 251 of the convex mirror structure 25 can convert the primary color light from different incident angles into a beam of parallel light beams for emission. The principle is as follows: Figure 3 As shown, each sub-pixel 11 has a corresponding convex mirror structure 25, and the refraction of the convex mirror structure 25 prevents the primary color light entering the display panel 10 from crosstalk, thereby improving the transmittance while ensuring the display quality.

[0047] In the present application, by improving the reflective layer 23, since the concave mirror structure 233 can converge light or form a parallel light beam through reflection, after the light enters the concave mirror surface 23311 from the light guide plate 21, it can be reflected by the photonic crystal 2332 corresponding to each sub-pixel 11, and the light can be gathered and shot into each sub-pixel 11; and since the color rendering principle of the existing color filter substrate only allows light of the corresponding color wavelength to pass through, other wavelengths of light will be absorbed by the filter of the color filter substrate, so the transmittance is low, and the loss of the backlight module 20 is large. However, the present application directly converts the backlight module 20 into the corresponding primary color light. In conjunction with the convex mirror structure 25, the convex mirror surface 251 of the convex mirror structure 25 can convert the primary color light from different incident angles into a beam of parallel light beams for emission. Therefore, compared with the existing display device, the display device of the present application not only makes the product thinner, but also improves the display effect.

[0048] The present application also provides a method for manufacturing a display device, referring to Figure 4 As shown, the manufacturing method of the backlight module 20 specifically includes the following steps:

[0049] Step S110 : coating a photoresist material layer 30 on the first substrate 231 , forming a matrix 232 on the photoresist material layer 30 , and forming receiving grooves 2321 in the matrix 232 .

[0050] Reference Figure 5 As shown, the photoresist material layer 30 is a black photoresist material layer. The photoresist material layer 30 of the first substrate 231 is subjected to vacuum drying and pre-baking and then to exposure, development and curing processes to form a matrix 232 on the first substrate 231, that is, a black matrix 232 is formed on the first substrate 231, and then a receiving groove 2321 is formed in the matrix 232.

[0051] Step S120: Add the solution of the photonic crystal 2332 into the receiving groove 2321, and set a shaping mold 40 at the notch 23211 of the receiving groove 2321. The shaping mold 40 has a convex surface 41, and the convex surface 41 is pressed into the solution of the photonic crystal 2332. After the solution of the photonic crystal 2332 is solidified, a concave mirror structure 233 is formed. The concave mirror structure 233 includes a carrier 2331 and a photonic crystal 2332. The photonic crystal 2332 is filled in the carrier 2331. The side of the carrier 2331 away from the receiving groove 2321 forms a concave mirror surface 23311. The photonic crystal 2332 has multiple primary colors.

[0052] Reference Figure 6 and Figure 7As shown, the solution of the photonic crystal 2332 is first evenly mixed, and then added to each receiving groove 2321 respectively, and then pressed into the solution of the photonic crystal 2332 by a shaping mold 40 and baked for shaping, and the convex surface 41 of the shaping mold 40 forms a corresponding concave mirror surface 23311.

[0053] The photonic crystals 2332 of different primary colors are arranged alternately in the order of red, green and blue. Each sub-pixel 11 corresponds to a receiving groove 2321. The three sub-pixels 11 of red, green and blue form one pixel. Each sub-pixel 11 can form corresponding red light, blue light and green light. The three lights are mixed in different proportions to produce various colored lights.

[0054] The periodic structure of photonic crystal 2332 leads to the generation of photonic band gaps, which prevent the propagation of light with a specific wavelength. Therefore, photonic crystals 2332 are called optical semiconductors because they have the ability to control the flow of photons, just like semiconductors control electrons. In recent years, photonic crystal 2332 materials have been used as reflective substrates to enhance the intensity of light, while matching the corresponding photonic band gap with the wavelength of light to achieve the regulation of luminescent color. Therefore, driven by the backlight driver, the backlight module 20 provides backlight for the display panel 10 on the non-display surface 12 of the display panel 10, and the light of the side light source 22 enters the reflective layer 23 through the light guiding effect of the light guide plate 21. The reflective layer 23 includes a first substrate 231, a matrix 232 and a concave mirror structure 233. The matrix 232 is arranged on the first substrate 231 to form a receiving groove 2321 corresponding to the sub-pixel 11, and the concave mirror structure 233 is arranged in the receiving groove 2321. The light entering the reflective layer 23 is reflected from the light guide plate 21 to the display panel 10 by the photonic crystal 2332 having multiple primary colors. The light forms multiple primary color light under the action of the photonic crystal 2332. The primary color light can be injected into the display panel 10 to increase the color of the sub-pixel 11 or replace the color film substrate in the existing display panel 10, thereby improving the display effect of the display panel 10 and reducing the thickness of the display panel 10. Furthermore, since the concave mirror structure 233 can converge light or form a parallel light beam through reflection, after the light is incident from the light guide plate 21 into the concave mirror surface 23311, it can be focused and emitted into each sub-pixel 11 after being reflected by the photonic crystal 2332 corresponding to each sub-pixel 11, thereby reducing the probability of light crosstalk and further improving the display effect.

[0055] Step S130: placing the light guide plate 21 on a side of the matrix 232 away from the first substrate 231;

[0056] Reference Figure 8 As shown, the light guide plate 21 is cut into a suitable size as required, and then pasted on the reflective layer 23 through processes such as dotting and laminating. The specifications and sizes of the light guide plate 21 can also be selected according to actual conditions.

[0057] Step S140: The convex mirror structure 25 is disposed on the side of the light guide plate 21 away from the matrix 232 . The side of the convex mirror structure 25 facing the display panel 10 has a convex mirror surface 251 . The light incident on the light guide plate 21 forms an outgoing light through the convex mirror structure 25 . The outgoing light is perpendicular to the non-display surface 12 .

[0058] Reference Figure 8 As shown, a convex mirror structure 25 which is neatly arranged and has a size matching that of the sub-pixel 11 is attached to the top of the light guide plate 21. The convex mirror surface 251 of the convex mirror structure 25 can convert the primary color light from different incident angles into a beam of parallel light beams for emission. Each sub-pixel 11 has a corresponding convex mirror structure 25. The refraction of the convex mirror structure 25 prevents the primary color light entering the display panel 10 from crosstalk, thereby improving the transmittance while ensuring the display quality. The parallel light beam is the emitted light.

[0059] Although the photonic crystals 2332 of the radiation layer can solve the problem of light crosstalk of the reflected light in the light guide plate 21, there will be a certain angle when the light is emitted through the light guide plate 21. If the movement trajectory of the light is not changed, the primary color light will also crosstalk in the display panel 10, reducing the display effect. Therefore, the number of convex mirror structures 25 and concave mirror structures 233 is the same, and the convex mirror structure 25 is set corresponding to the concave mirror structure 233. The convex mirror surface 251 of the convex mirror structure 25 can convert the primary color light from different incident angles into a beam of parallel light beams for emission. Each sub-pixel 11 has a corresponding convex mirror structure 25. The refraction of the convex mirror structure 25 prevents the primary color light entering the display panel 10 from crosstalk, thereby improving the transmittance while ensuring the display quality.

[0060] Step S150 : disposing the side light source 22 radially outward of the light guide plate 21 .

[0061] Reference Fig. 9 As shown, the side light sources 22 are assembled to the radial sides of the light guide plate 21 , and after welding, packaging and other processes, the backlight module 20 can be completed.

[0062] In some embodiments, reference Fig.10 As shown, the manufacturing method of the display panel 10 includes:

[0063] Step S210 : adding liquid crystal 16 on the array substrate 14 .

[0064] Reference Fig.11 As shown, after the array substrate 14 is manufactured through PI coating and alignment processes, the defoamed liquid crystal 16 is evenly dripped onto the array substrate 14 .

[0065] Step S220: The second substrate 15 is disposed on the array substrate 14, and the liquid crystal 16 is encapsulated by the second substrate 15 and the array substrate 14. The second substrate 15 is a transparent substrate. The light forms a plurality of primary color lights under the action of the photonic crystal 2332. The plurality of primary color lights are emitted from the display surface 13 of the display panel 10 in sequence through the array substrate 14, the liquid crystal 16 and the second substrate 15.

[0066] Reference Fig.12 As shown, in a vacuum environment, the array substrate 14 and the second substrate 15 coated with frame glue are bonded and packaged, and then light hardened and heat hardened. The existing display panel 10 includes an array substrate 14, a color filter substrate and a liquid crystal 16. The color filter substrate in the existing display panel 10 is replaced by the second substrate 15 in the present application. Since the second substrate 15 is a transparent substrate, a basic glass substrate can be selected, which can reduce the thickness and simplify the manufacturing process relative to the color filter substrate. Breaking the traditional idea of ​​improving and optimizing the liquid crystal 16 display device, by changing the structural design of the display, optimizing the preparation process and using a new type of photonic crystal 2332 material, the display effect of the display is effectively improved, the lightness and thinness are reduced, and the manufacturing process is simplified and the manufacturing cost is reduced. Since the color rendering principle of the existing color filter substrate only allows light of the corresponding color wavelength to pass, light of other wavelengths will be absorbed by the filter of the color filter substrate, so the transmittance is low and the backlight module 20 has a large loss. However, the present application directly converts the backlight module 20 into the corresponding primary color light, the utilization rate of the backlight module 20 is increased, and the contrast is effectively improved. Therefore, compared with the existing display device, the display device of the present application not only makes the product thinner and lighter, but also improves the display effect. The second substrate 15 can be a glass substrate.

[0067] Step S230 : a polarizer 50 is disposed on a side of the array substrate 14 facing away from the second substrate 15 and a side of the second substrate 15 facing away from the array substrate 14 .

[0068] Reference Fig.13 As shown, the polarizer 50 controls the polarization direction of light so that light in a specific direction can pass through, while light in other directions is blocked or redirected. In the liquid crystal 16 display, the polarizer 50 can convert the non-polarized light emitted by the backlight module 20 into polarized light, and regulate the light passing state through the liquid crystal 16 layer, and finally display the image.

[0069] Step S240 : disposing the backlight module 20 on the non-display surface 12 of the display panel 10 .

[0070] Reference Fig.14As shown, through the improvement of the reflective layer 23, since the concave mirror structure 233 can converge the light or form a parallel light beam through reflection, after the light enters the concave mirror surface 23311 from the light guide plate 21, it can be reflected by the photonic crystal 2332 corresponding to each sub-pixel 11, and the light can be gathered and shot into each sub-pixel 11; and since the color rendering principle of the existing color filter substrate only allows the light of the corresponding color wavelength to pass through, the light of other wavelengths will be absorbed by the filter of the color filter substrate, so the transmittance is low, and the loss of the backlight module 20 is large. However, the present application directly converts the backlight module 20 into the corresponding primary color light. In conjunction with the convex mirror structure 25, the convex mirror surface 251 of the convex mirror structure 25 can convert the primary color light from different incident angles into a beam of parallel light beams for emission. Therefore, compared with the existing display device, the display device of the present application not only makes the product thinner, but also improves the display effect.

[0071] The present application also provides a display, comprising the above-mentioned display device.

[0072] In this application, unless otherwise clearly specified and limited, the terms "disposed (provided with)", "connected" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0073] In the description of this specification, the description of reference terms such as "some embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment are included in at least one embodiment of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0074] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application. Therefore, any changes or modifications made in accordance with the claims and description of the present application should fall within the scope of the patent of this application.

Claims

1. A display device, characterized in that: include: A display panel comprising a plurality of sub-pixels, wherein the display panel has a non-display surface; A backlight module, the backlight module comprising: A light guide plate, disposed on a side of the display panel facing the non-display surface; A side light source, arranged outside the light guide plate in the radial direction of the light guide plate; A reflective layer is arranged on a side of the light guide plate away from the display panel, the reflective layer includes a first substrate, a matrix and a concave mirror structure, the matrix is ​​arranged on the first substrate to form a receiving groove corresponding to the sub-pixel, the concave mirror structure is arranged in the receiving groove, the concave mirror structure includes a carrier and a photonic crystal, the photonic crystal is filled in the carrier, the side of the carrier facing the light guide plate forms a concave mirror surface, and the photonic crystal has multiple primary colors.

2. The display device according to claim 1, characterized in that The display panel has a display surface, and the display panel includes an array substrate, a second substrate and liquid crystal. The liquid crystal is arranged between the array substrate and the second substrate. The array substrate is arranged close to the light guide plate, and the second substrate is arranged away from the light guide plate. The second substrate is a transparent substrate. The light forms a plurality of primary color lights under the action of the photonic crystal, and the plurality of primary color lights are emitted from the display surface via the array substrate, the liquid crystal and the second substrate in sequence.

3. The display device according to claim 1, characterized in that The light emitted by the side light source is incident on the concave mirror surface via the light guide plate, and then is focused by the concave mirror surface and incident on the non-display surface via the light guide plate.

4. The display device according to claim 1, characterized in that The backlight module further comprises a convex mirror structure, wherein the convex mirror structure has a convex mirror surface on a side facing the display panel, and the light incident on the light guide plate forms an outgoing light through the convex mirror structure, and the outgoing light is perpendicular to the non-display surface.

5. The display device according to claim 4, characterized in that: The number of the convex mirror structures and the concave mirror structures is the same, and the convex mirror structures are arranged correspondingly to the concave mirror structures.

6. The display device according to claim 1, characterized in that: The side wall of the concave mirror structure abuts against the side wall of the accommodating groove, and in the height direction, the height of the side wall of the concave mirror structure is equal to the height of the side wall of the accommodating groove.

7. A method for manufacturing a display device, characterized in that: The invention comprises a method for manufacturing a backlight module, wherein the method for manufacturing the backlight module comprises: Coating a photoresist material layer on the first substrate, forming a matrix on the photoresist material layer, and forming a receiving groove in the matrix; A solution of photonic crystals is added into the containing tank, and a shaping mold is arranged at the notch of the containing tank, wherein the shaping mold has a convex surface, and the convex surface is pressed into the solution of the photonic crystals. After the solution of the photonic crystals is solidified, a concave mirror structure is formed, wherein the concave mirror structure comprises a carrier and a photonic crystal, wherein the photonic crystals are filled in the carrier, and a concave mirror surface is formed on a side of the carrier away from the bottom wall of the containing tank, and the photonic crystals have a plurality of primary colors.

8. The method according to claim 7, characterized in that: The manufacturing method of the backlight module also includes: Arrange a light guide plate on a side of the matrix away from the first substrate; A convex mirror structure is arranged on the side of the light guide plate away from the matrix. The side of the convex mirror structure away from the matrix has a convex mirror surface. The light incident on the light guide plate forms an outgoing light through the convex mirror structure. The outgoing light is perpendicular to the non-display surface.

9. The manufacturing method according to claim 7, characterized in that: A method for manufacturing a display panel is provided, wherein the method for manufacturing a display panel comprises: adding liquid crystal on the array substrate; The second substrate is arranged on the array substrate, and the liquid crystal is encapsulated by the second substrate and the array substrate, wherein the second substrate is a transparent substrate, and the light forms a plurality of primary color lights under the action of the photonic crystal, and the plurality of primary color lights are sequentially emitted from the display surface of the display panel through the array substrate, the liquid crystal and the second substrate; Polarizers are respectively arranged on a side of the array substrate facing away from the second substrate and on a side of the second substrate facing away from the array substrate.

10. A display, characterized in that: A display device comprising any one of claims 1 to 6.

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