Light-emitting substrate and display device

Abstract

The invention is suitable for the technical field of display, and provides a light-emitting substrate and a display device.The light-emitting substrate comprises a base layer, light-emitting elements and a reflection structure, the reflection structure comprises a plurality of reflection parts, the reflection parts are arranged in the direction from one light-emitting element to the adjacent light-emitting element, and each reflection part is provided with a reflection face; the included angle between the reflecting surface and the surface of the base layer is larger than 90 degrees. According to the invention, the reflection structure is arranged between the light-emitting elements, so that large-angle light is prevented from being irradiated to adjacent areas during subarea light control, and unexpected halo is prevented from being formed; large-angle light rays finally form effective emergent light as far as possible, so that the emergent light brightness of each light-emitting element and the brightness of a picture are ensured; light can be ensured to be emitted in the whole area corresponding to the light-emitting element, brightness in the area is more uniform, and excessive brightness in the center of the area is avoided. The lightening ranges of the two adjacent areas can be seamlessly spliced as much as possible, and the brightness of the whole display picture is more uniform and consistent.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a light-emitting substrate and a display device. Background Art

[0002] In the backlight module of the display device, a plurality of light-emitting elements 002, such as LEDs (Light-Emitting Diodes), are arranged at equal intervals on the circuit board 001. Considering the number and cost of LEDs, the spacing between LEDs is usually large. When controlling the light in different zones, the lit LEDs are prone to form a halo area P' around them, especially at the edge of a high-contrast screen, which affects the overall display effect.

[0003] refer to Figure 1 and Figure 2 As shown, among the multiple light-emitting elements 002 on the circuit board 001, when the light is controlled by partition, the LED located in the center is lit (marked "LED ON" below), and the LEDs around it remain off (marked "LED OFF" below). The lit LED can provide effective light intensity to the partition directly facing it, forming an effective area S' to ensure effective display of the corresponding area; but in the surrounding area, the large-angle scattered light of the lit LED is reflected by the bottom surface of the circuit board 001 and is extended to the adjacent areas, causing light leakage in these adjacent areas, forming a halo area P'. Even if the adjacent area is not in a dark state, the halo will cause changes in the light intensity, color, etc. of the corresponding area. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a light-emitting substrate, aiming to solve the technical problem that the light-emitting substrate in the existing display device is prone to form halos and affect the display effect when controlling light by partitions.

[0005] An embodiment of the present application is implemented as follows: a light-emitting substrate comprises a base layer, a light-emitting element arranged on the base layer, and a reflective structure arranged around the light-emitting element; wherein the reflective structure comprises a plurality of reflective portions, the reflective portions are arranged along a direction from one light-emitting element to an adjacent light-emitting element, each of the reflective portions has a reflective surface facing the light-emitting element, and on a side close to the light-emitting element, an angle between the reflective surface and a surface of the base layer is greater than 90 degrees.

[0006] In one embodiment, the height of each of the reflective surfaces gradually increases as the distance from the light emitting element increases.

[0007] In one embodiment, between two adjacent light emitting elements, the two reflective structures share the reflective portion that is closest to each other, and the reflective portion has two reflective surfaces that face the two adjacent light emitting elements respectively.

[0008] In one embodiment, each of the reflective portions has a light absorbing surface facing an adjacent one of the light emitting elements, and the reflectivity of the light absorbing surface is lower than the reflectivity of the reflective surface.

[0009] In one embodiment, the roughness of the light-absorbing surface is greater than the roughness of the reflective surface; or, the reflective portion includes a reflective body and a light-absorbing layer provided on the reflective body, the reflective body is a light-transmitting material piece, the light-absorbing layer is a non-light-transmitting material layer, and the surface of the light-absorbing layer serves as the light-absorbing surface.

[0010] In one embodiment, the reflective portion includes a reflective body and a reflective layer disposed on the reflective body, the reflective body is a light-transmitting material piece, the reflective layer is a non-light-transmitting material layer, and a surface of the reflective layer serves as the reflective surface.

[0011] In one embodiment, each of the reflective portions surrounds one of the light emitting elements to form a closed ring shape.

[0012] In one embodiment, the reflective portions are interconnected to form an integral structure, and the reflective structures are interconnected to form an integral structure.

[0013] Another object of the present application is to provide a method for manufacturing a light-emitting substrate, comprising:

[0014] mounting a light emitting element on the substrate; and

[0015] Installing a reflective structure on the base layer and between the light-emitting elements; or manufacturing a reflective structure and installing the reflective structure on the base layer and between the light-emitting elements;

[0016] The reflective structure includes a plurality of reflective parts, which are arranged along a direction from one light-emitting element to an adjacent light-emitting element. Each reflective part has a reflective surface facing the light-emitting element. On the side close to the light-emitting element, the angle between the reflective surface and the surface of the base layer is greater than 90 degrees.

[0017] Another object of the present application is to provide a display device, which is a light-emitting substrate as described in the above embodiments, and the light emitted by the light-emitting substrate is used for imaging of the display device.

[0018] The light-emitting substrate and display device provided in the embodiments of the present application have the following beneficial effects:

[0019] The light-emitting substrate provided in the embodiment of the present application has a reflective structure arranged between the light-emitting elements, and the reflection includes multiple reflective parts, which are arranged in a direction from one light-emitting element to an adjacent light-emitting element, and each reflective part has a reflective surface facing its corresponding light-emitting element, and on the side close to the light-emitting element, the angle α between the reflective surface and the surface of the base layer is greater than 90 degrees. The advantages are: first, when the light is controlled by different areas, it can avoid large-angle light from irradiating adjacent areas, thereby avoiding the formation of undesirable halos; second, the large-angle light finally forms effective light as much as possible, ensuring the light output brightness of each light-emitting element and the brightness of the picture; third, it can ensure that light is emitted in the entire area corresponding to the light-emitting element, the brightness in the area is more uniform, and the brightness in the center of the area is avoided to be too high; fourth, the lighting ranges of two adjacent areas can be seamlessly spliced ​​as much as possible, and the brightness on the entire display screen is more uniform and consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is a schematic diagram of the first light-emitting substrate structure in the prior art;

[0022] Figure 2 yes Figure 1 Sectional view along line AA;

[0023] Figure 3 is a schematic structural diagram of a light-emitting substrate provided in an embodiment of the present application;

[0024] Figure 4 It is a schematic diagram of the reflection structure around a light-emitting unit in the light-emitting substrate provided in an embodiment of the present application;

[0025] Figure 5 yes Figure 4 Sectional view along line BB;

[0026] Figure 6 yes Figure 5 A partial enlarged view of the structure;

[0027] Figure 7 This is a first schematic diagram of a reflective structure in a light-emitting substrate provided in an embodiment of the present application;

[0028] Figure 8 This is a second schematic diagram of the reflective structure in the light-emitting substrate provided in an embodiment of the present application;

[0029] Fig. 9is a schematic diagram of the light path of the light-emitting substrate provided in an embodiment of the present application;

[0030] Fig.10 It is a structural schematic diagram of a method for manufacturing a light-emitting substrate provided in an embodiment of the present application;

[0031] Fig.11 It is a flow chart of step T2 in the method for manufacturing a light-emitting substrate provided in an embodiment of the present application;

[0032] Fig.12 is another flow chart of step T2 in the method for manufacturing a light-emitting substrate provided in an embodiment of the present application;

[0033] Fig.13 It is a schematic diagram of the structure of the display device provided in an embodiment of the present application.

[0034] The meanings of the marks in the figure are:

[0035] 200-display device, 9-display panel, 8-backlight module,

[0036] 100-light emitting substrate;

[0037] 001, 5-base;

[0038] 002, 6-light emitting element;

[0039] 7-reflection structure, 71-reflection part, 711-reflection body, 712-reflection layer, 7120-reflection surface, 713-light absorbing layer, 7130-light absorbing surface, 74-base layer, 75-triangular protrusion;

[0040] 7121 - first reflecting surface, 7122 - second reflecting surface, 7123 - third reflecting surface, 7124 - fourth reflecting surface;

[0041] S, S'-effective area; P'-halo area;

[0042] X-row direction, Y-column direction. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0044] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly or indirectly fixed or disposed on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of this patent. The terms "first" and "second" are only used for the convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0045] See also Figure 3 , Figure 5 and Figure 6 As shown, the embodiment of the present application first provides a light-emitting substrate 100, including a base layer 5, and a plurality of light-emitting elements 6 disposed on the surface of the base layer 5. The plurality of light-emitting elements 6 are arranged in a certain array on the base layer 5, and the light-emitting elements 6 are arranged at intervals, generally at equal intervals. When each light-emitting element 6 is lit, it can illuminate the area around it.

[0046] The light emitting element 6 may be an LED, such as an LED lamp bead or an LED chip.

[0047] In other optional embodiments, the light emitting element 6 may also be other types of light emitting elements, such as an organic electroluminescent element.

[0048] Among them, see Figure 5 and Figure 6 As shown, in this embodiment, the light-emitting substrate 100 further includes a reflective structure 7, which is disposed in the space between the light-emitting elements 6 and around the light-emitting elements 6. The reflective structure 7 is used to reflect the light of the light-emitting elements 6, especially the large-angle light from the side of the light-emitting elements 6, so that it can be emitted as far as possible, so as to reduce or even avoid the occurrence of halo.

[0049] It should be noted that the reflective structure 7 and the light emitting element 6 are arranged in a one-to-one correspondence, and therefore, the position and orientation of the reflective structure 7 described below are all based on the corresponding light emitting element 6 .

[0050] Specifically, Figure 6 In the embodiment, the reflective structure 7 includes a plurality of reflective portions 71, and the reflective portions 71 are arranged along a direction from one light emitting element 6 to an adjacent light emitting element 6, and each reflective portion 71 has a reflective surface 7120 facing its corresponding light emitting element 6, and, please refer to Figure 8As shown, on the side close to the light emitting element 6, the angle between the reflective surface 7120 and the surface of the base layer 5 is greater than 90 degrees.

[0051] In this embodiment, each reflective portion 71 has a reflective surface 7120 facing its corresponding light-emitting element 6. When the light-emitting substrate 100 is used for zoned light control, it can reflect the large-angle light from the side of the light-emitting element 6 to prevent the large-angle light from irradiating adjacent areas, thereby avoiding the formation of undesired halos.

[0052] The angle between the reflective surface 7120 and the surface of the base layer 5 is greater than 90 degrees, which makes it easier to reflect the large-angle light from the side of the light-emitting element 6 away from the base layer 5, rather than toward the base layer 5 or parallel to the base layer 5, so that these large-angle light can eventually form effective light output, ensuring the light output brightness of each light-emitting element 6. Fig. 9 As shown, the lighted light emitting element 6 itself corresponds to forming an effective area S, and no halo is generated.

[0053] Combination Figure 7 and Fig. 9 As shown, for some large-angle light on the side of the light-emitting element 6, the larger the angle, the easier it is to be reflected by the reflection surface 7120 (defined as the first reflection surface 7121) close to the light-emitting element 6. As the angle of the light decreases, it is gradually reflected by the reflection surfaces 7120 (defined as the second reflection surface 7122, the third reflection surface 7123, and the fourth reflection surface 7124) farther away from the light-emitting element 6. Therefore, light is emitted in the entire area corresponding to the light-emitting element 6, and the brightness in the entire area is more uniform, avoiding the problem of light concentration and excessive brightness in the center of the area caused by uniform reflection of large-angle light.

[0054] Furthermore, the light reflected by the fourth reflection surface 7124 is located outside the light reflected by the first reflection surface 7121, ensuring that the area corresponding to the light emitting element 6 is fully illuminated, and the effective area S of two adjacent areas can be seamlessly spliced ​​as much as possible, and even there can be no dark area between the two adjacent areas. In this way, the brightness of the entire display screen is more uniform.

[0055] The light-emitting substrate 100 provided in the embodiment of the present application has a reflective structure 7 arranged between the light-emitting elements 6, and the reflection includes a plurality of reflective parts 71, and the reflective parts 71 are arranged along the direction from one light-emitting element 6 to an adjacent light-emitting element 6, and each reflective part 71 has a reflective surface 7120 facing its corresponding light-emitting element 6, and on the side close to the light-emitting element 6, the angle α between the reflective surface 7120 and the surface of the base layer 5 is greater than 90 degrees. The advantages are: first, when the light is controlled by different zones, it can avoid large-angle light from irradiating adjacent areas, thereby avoiding the formation of undesired halos; second, the large-angle light can eventually form effective light output, ensuring the light output brightness of each light-emitting element 6 and the brightness of the picture; third, it can ensure that light is emitted in the entire area corresponding to the light-emitting element 6, the brightness in the area is more uniform, and there will be no problem of excessive brightness in the center; fourth, the lighting ranges of two adjacent areas can be seamlessly spliced ​​as much as possible, and the brightness on the entire display screen is more uniform and consistent.

[0056] The base layer 5 may be a circuit board, or may be other structural layers including wiring that can connect the light emitting element 6 to an external power source.

[0057] For ease of description, we define the two directions of "up" and "down". Figure 5 As shown, the light emitting element 6 is located above the substrate 5 .

[0058] In order to effectively reflect large-angle light, the angle α between the reflective surface 7120 and the surface of the base layer 5 is less than 180 degrees. In specific applications, the value of the angle α should be determined in combination with the spacing between the light-emitting elements 6 and the height of the light-emitting elements 6.

[0059] Please refer to Figure 8 As shown, in an optional embodiment, the angle α between the reflective surface 7120 and the surface of the base layer 5 is greater than 100 degrees; further optionally, α is greater than 120 degrees.

[0060] In an optional embodiment, the angle α between the reflective surface 7120 and the surface of the base layer 5 is less than 150 degrees; further optionally, α is less than 140 degrees.

[0061] It can be understood that, in a reflective structure 7, the inclination degrees of the reflective surfaces 7120 of the reflective portions 71 relative to the surface of the base layer 5 can be the same or different.

[0062] See also Figure 3 As shown, on the base layer 5 , the light emitting elements 6 are arranged in a rectangular array, that is, the light emitting elements 6 are arranged in multiple rows and columns, and the row direction X and the column direction Y are two mutually perpendicular directions on the surface of the base layer 5 .

[0063] Optionally, the above-mentioned reflective structures 7 are disposed around a light emitting element 6 to ensure that large-angle light around the light emitting element 6 can be reflected.

[0064] like Figure 6 As shown, there are two reflective structures 7 between two adjacent light emitting elements 6 , and the two reflective structures 7 are arranged in reverse, that is, in mirror image.

[0065] See also Figure 6 As shown, the distance between two adjacent reflective structures 7 is 0, so there is no space between the two reflective structures 7, which can avoid the formation of a dark display area between the two areas.

[0066] See also Figure 3 and Figure 4 As shown, in one embodiment, the reflective structure 7 is in a closed ring shape, and each reflective portion 71 is also in a closed ring shape ( Figure 3 and Figure 4 In the figure, the solid rectangular frame represents the reflective surface 7120). In this way, the leakage of large-angle light from the side of the light-emitting element 6 to the surrounding area can be completely avoided.

[0067] In other optional embodiments, the reflective structure 7 may be a non-closed loop, such as the two ends of the reflective structure 7 are not closed and connected, or the reflective structure 7 includes a plurality of spaced-apart parts. In this case, it is only necessary to ensure that the light leakage from the light emitting element 6 to the surrounding area can be reduced to a level that cannot be clearly distinguished.

[0068] like Figure 3 and Figure 4 As shown, in one embodiment, from the perspective of looking down at the surface of the base layer 5, the four parts of the reflective structure 7 extend along the row direction X and the column direction Y, and the four parts form a rectangle.

[0069] The purpose of such design is that the reflective structure 7 is rectangular in design and two adjacent reflective structures 7 are interconnected, so that the area inside each reflective structure 7 corresponds exactly to the area of ​​each light-emitting element 6, that is, the space defined by all reflective structures 7 is of the same shape, which can further ensure that the brightness of each area is close and the brightness of the entire display screen is uniform.

[0070] See also Figure 6 and Figure 7As shown, the height of each reflective surface 7120 gradually increases as it moves away from the light emitting element 6. More specifically, the highest point of each reflective surface 7120 gradually rises. The purpose of this design is to reduce the obstruction of one reflective surface 7120 by other reflective surfaces 7120 close to the light emitting element 6, for example, to reduce the obstruction of the fourth reflective surface 7124 by the third reflective surface 7123, so that each reflective surface 7120 can reflect light as evenly as possible, and avoid concentrated reflection of light on a certain reflective surface 7120.

[0071] For a reflective surface 7120, light shines more on part of its upper surface. Therefore, the design of the lowest point of each reflective surface 7120 is not particularly limited. For example, the lowest point of each reflective surface 7120 can be designed to be at the same height, or a certain height difference is also acceptable.

[0072] like Figure 6 As shown, in one embodiment, the reflective structure 7 is integrally formed, the lower ends of the reflective portions 71 are connected to each other, and the distance between the lowest point of each reflective surface 7120 and the surface of the base layer 5 is greater than 0.

[0073] Further, in an optional embodiment, if Figure 6 As shown, two adjacent reflective structures 7 are connected to each other as a whole ( Figure 6 In the figure, two reflection structures 7 are divided by a dotted line. That is to say, the lower ends of two adjacent reflection structures 7 are connected to each other.

[0074] The purpose of such design is that the reflective structures 7 are interconnected to form a whole, a grid-like structure. Therefore, when assembling the light-emitting substrate 100, the overall grid-like reflective structure 7 can be directly placed on the base layer 5, without having to install them one by one on the base layer 5.

[0075] Specifically, the reflective structure 7 can be installed on the base layer 5 by means of fasteners such as gluing or screws, or can be directly formed on the base layer 5 .

[0076] Optionally, each reflective structure 7 is integrally formed.

[0077] Or, alternatively, as Figure 8 As shown, each reflective structure 7 includes a base layer 74 and a triangular protrusion 75 fixed on the base layer 74. Each triangular protrusion 75 and a corresponding part of the base layer 74 below it together form a reflective portion 71. The base layer 74 and the triangular protrusion 75 are made separately and connected together.

[0078] Then, see Figure 7As shown, in one embodiment, two adjacent reflective structures 7 share a reflective portion 71 that is closest to each other, and the reflective portion 71 has two reflective surfaces 7120 that are respectively facing two adjacent light-emitting elements 6. The purpose of this design is to further save the material cost and width of the reflective portion 71 and the reflective structure 7, and also to avoid the formation of a dark area between the two reflective portions 71 that are closest to each other in the two reflective structures 7.

[0079] See also Figure 7 As shown, the reflective portion 71 includes a reflective body 711 and a reflective layer 712 disposed on the reflective body 711 . The reflective body 711 is a light-transmitting material, the reflective layer 712 is a non-light-transmitting material layer, and the surface of the reflective layer 712 serves as a reflective surface 7120 .

[0080] The non-light-transmitting material layer may be a material layer with high reflectivity, such as an aluminum layer, a silver layer, etc. The non-light-transmitting material layer is formed on the transparent reflective body 711 by coating.

[0081] Please continue reading Figure 6 and Figure 7 As shown, each reflective portion 71 has a light absorbing surface 7130 facing an adjacent light emitting element 6 , and the reflectivity of the light absorbing surface 7130 is lower than the reflectivity of the reflective surface 7120 .

[0082] The purpose of such a design is to utilize the light-absorbing surface 7130 to absorb stray light from other directions, thereby preventing the stray light from being reflected and reaching undesired areas, thereby affecting the dark state display or display brightness of these areas.

[0083] The light absorbing surface 7130 is a rough surface, and its roughness is greater than that of the reflecting surface 7120. That is, the light absorbing surface 7130 can be obtained by roughening the surface of one reflecting portion 71 facing another light emitting element 6.

[0084] The light absorbing surface 7130 also forms a rectangle along with the closed-loop rectangle of the reflective structure 7, see Figure 3 and Figure 4 As shown ( Figure 3 and Figure 4 In the figure, the dotted box represents the light absorbing surface 7130).

[0085] Or, if Figure 7 As shown, the reflective portion 71 includes a reflective body 711 and a light absorbing layer 713 disposed on the reflective body 711 . The reflective body 711 is a light-transmitting material piece, the light absorbing layer 713 is a non-light-transmitting material layer, and the surface of the light absorbing layer 713 serves as a light absorbing surface 7130 .

[0086] The non-light-transmitting material layer may be a material layer with a low reflectivity, such as a black coating, a gray coating, etc.

[0087] See also Fig.10 As shown, the embodiment of the present application also provides a method for manufacturing a light-emitting substrate 100, which includes the following steps:

[0088] Step T1, installing a light emitting element 6 on a substrate 5;

[0089] And step T2, making a reflective structure 7, and installing the reflective structure 7 on the base layer 5 and between the light-emitting elements 6; or, making the reflective structure 7 on the base layer 5 and between the light-emitting elements 6.

[0090] The reflective structure 7 includes a plurality of reflective portions 71 . The reflective portions 71 are arranged along a direction from one light emitting element 6 to an adjacent light emitting element 6 . Each reflective portion 71 has a reflective surface 7120 facing the light emitting element 6 .

[0091] In one embodiment, the reflective structures 7 are interconnected as a whole in a grid shape, and the grid-shaped reflective structure 7 is installed on the middle base layer 5 so that the light-emitting elements 6 pass through the inside of the reflective structure 7 .

[0092] In step T2 , the grid-shaped transparent plate may be laser engraved to form triangular protrusions 75 , and the above-mentioned reflective layer 712 and light absorbing layer 713 may be formed on two side surfaces of the triangular protrusions 75 , thereby obtaining the reflective structure 7 .

[0093] Or, if Fig.11 As shown, in step T2, the reflective structure 7 can be manufactured by the following steps:

[0094] Step T21, providing a grid-shaped transfer film, and engraving on the transfer film to form a sawtooth microstructure.

[0095] Specifically, the cross section of the sawtooth microstructure is triangular, and the middle portion of the sawtooth microstructure is higher than two sides.

[0096] Step T22, coating adhesive on the serrated microstructure of the transfer film;

[0097] Step T23, align the adhesive with the transparent base layer 74, and after the adhesive is cured, remove the transfer film to obtain the base layer 74 and the triangular protrusion 75 on the base layer 74, and form the above-mentioned reflective layer 712 and light absorbing layer 713 on the two sides of the triangular protrusion 75, thereby obtaining the reflective structure 7.

[0098] In this step 23, different curing methods may be used according to different components of the adhesive material, such as heating curing or ultraviolet irradiation curing.

[0099] Or, in an alternative embodiment, Fig.12 As shown, the above steps T22 and S23 are replaced by:

[0100] Step T22', coating glue on the base layer 5 and between the light emitting elements 6;

[0101] Step T23 ′, aligning the transfer film with the adhesive, and after the adhesive is cured, removing the transfer film to obtain a plurality of triangular protrusions 75 , and forming the above-mentioned reflective layer 712 and light absorbing layer 713 on both sides of the triangular protrusions 75 , thereby obtaining a reflective structure 7 .

[0102] In the step T23', the adhesive material may be cured by ultraviolet irradiation.

[0103] The embodiment of the present application further provides a display device 200 , which includes the light-emitting substrate 100 described in the above embodiments, and the light emitted by the light-emitting substrate 100 is used for imaging of the display device 200 .

[0104] In one embodiment, the display device 200 may be a liquid crystal display device, and the light emitted by the light emitting substrate 100 serves as a backlight source. Fig.13 As shown, the display device 200 includes a backlight module 8 and a display panel 9. The backlight module 8 includes the light-emitting substrate 100 described in the above embodiments.

[0105] In one embodiment, the display device 200 may be a direct display device, including a display panel, wherein the light-emitting substrate 100 is a part of the display panel, and the light emitted by the light-emitting element 6 on the light-emitting substrate 100 is directly used as a pixel point and formed into an image.

[0106] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A light-emitting substrate, characterized in that: It comprises a base layer, a light-emitting element arranged on the base layer, and a reflective structure arranged around the light-emitting element; wherein the reflective structure comprises a plurality of reflective portions, the reflective portions are arranged along a direction from one light-emitting element to an adjacent light-emitting element, each of the reflective portions has a reflective surface facing the light-emitting element, and on a side close to the light-emitting element, an angle between the reflective surface and a surface of the base layer is greater than 90 degrees.

2. The light-emitting substrate according to claim 1, wherein: As the distance from the light emitting element increases, the height of each reflecting surface gradually increases.

3. The light-emitting substrate according to claim 1, wherein: Between two adjacent light emitting elements, the two reflective structures share the reflective portion that is closest to each other, and the reflective portion has two reflective surfaces that face the two adjacent light emitting elements respectively.

4. The light-emitting substrate according to claim 1, wherein: Each of the reflective portions has a light absorbing surface facing an adjacent light emitting element, and the reflectivity of the light absorbing surface is lower than the reflectivity of the reflective surface.

5. The light-emitting substrate according to claim 4, characterized in that: The roughness of the light-absorbing surface is greater than the roughness of the reflective surface; or, the reflective portion includes a reflective body and a light-absorbing layer provided on the reflective body, the reflective body is a light-transmitting material piece, the light-absorbing layer is a non-light-transmitting material layer, and the surface of the light-absorbing layer serves as the light-absorbing surface.

6. The light-emitting substrate according to claim 1, wherein: The reflective part includes a reflective body and a reflective layer arranged on the reflective body, the reflective body is a light-transmitting material piece, the reflective layer is a non-light-transmitting material layer, and the surface of the reflective layer serves as the reflective surface.

7. The light-emitting substrate according to any one of claims 1 to 6, characterized in that: Each of the reflective portions surrounds one of the light emitting elements to form a closed ring shape.

8. The light-emitting substrate according to claim 7, wherein: The reflective parts are connected to each other as an integral structure, and the reflective structures are connected to each other as an integral structure.

9. A method for manufacturing a light-emitting substrate, characterized in that: include: installing a light emitting element on the substrate; as well as Installing a reflective structure on the base layer and between the light-emitting elements; Alternatively, a reflective structure is manufactured and installed on the base layer and between the light-emitting elements; The reflective structure includes a plurality of reflective parts, which are arranged along a direction from one light-emitting element to an adjacent light-emitting element. Each reflective part has a reflective surface facing the light-emitting element. On the side close to the light-emitting element, the angle between the reflective surface and the surface of the base layer is greater than 90 degrees.

10. A display device, characterized in that: The invention comprises a light emitting substrate as claimed in any one of claims 1 to 8, wherein light emitted by the light emitting substrate is used for imaging of the display device.

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