Display device and preparation method thereof

Abstract

The embodiment of the invention belongs to the display technology, and provides a display device and a preparation method thereof, the display device comprises a substrate, a shading assembly, a bonding piece and a plurality of light emitting devices, the substrate comprises a groove area and a mounting area, and the groove area and the mounting area are arranged at an interval; the light-emitting devices are arranged in the mounting area of the substrate in an array mode, light beams emitted by the light-emitting devices comprise target light and interference light, the target light is located on the light-emitting sides of the light-emitting devices, and the interference light is located on the peripheral sides of the light-emitting sides; the shading assembly is inserted between the adjacent light-emitting devices, the bottom surface of the shading assembly abuts against the groove bottom of the groove, and at least part of the shading assembly is a hard piece; the shading assembly is used for shading the interference light emitted by the light-emitting device so as to prevent the interference light from being emitted to the adjacent light-emitting device. At least part of the hard piece is used for manufacturing the shading assembly, scattering and diffraction of light beams can be reduced, the optical performance of the display device is further improved, and then the light emitting efficiency of the display device is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to display technology, and more particularly to a display device and a method for manufacturing the same. Background Art

[0002] Light emitting diode (LED) direct display technology displays images by directly driving LEDs to emit light. Compared with liquid crystal display technology that requires a backlight module to provide light source, it has the advantages of high brightness, wide dynamic range, and fast response speed, and can meet the needs of different application scenarios.

[0003] In the related art, LEDs are integrated onto a packaging substrate, integrated with fluorescent materials, and packaging glue is filled in the gaps between the LEDs.

[0004] However, white adhesive has a higher reflectivity but is prone to crosstalk; black adhesive can suppress crosstalk but has lower luminous efficiency. Therefore, the adhesive cannot simultaneously achieve both luminous efficiency and crosstalk suppression, which can easily affect the display effect of the display device. Summary of the Invention

[0005] The embodiments of the present application provide a display device and a method for manufacturing the same, which can solve the technical problem in the related art that the adhesive material cannot simultaneously take into account the two functions of luminous efficiency and crosstalk suppression, which easily affects the display effect of the display device.

[0006] In a first aspect, an embodiment of the present application provides a display device, comprising:

[0007] The substrate includes a groove area and a mounting area, wherein the groove area and the mounting area are spaced apart from each other, and the groove area is formed with a plurality of grooves arranged in an array;

[0008] A plurality of light-emitting devices are arranged in an array on the mounting area of ​​the substrate, wherein the light beams emitted by the light-emitting devices include target light and interference light, the target light is located on the light-emitting side of the light-emitting devices, and the interference light is located on the peripheral side of the light-emitting side;

[0009] a light-shielding component inserted between adjacent light-emitting devices, with a gap between each light-emitting device, the bottom surface of the light-shielding component abutting against the bottom of the groove, and at least a portion of the light-shielding component being a hard component;

[0010] An adhesive member is filled between the shading component, the light emitting device and the substrate, and is used to bond the shading component, the light emitting device and the substrate;

[0011] The shading component is used to shield the interfering light emitted by the light emitting device to prevent the interfering light from radiating to the adjacent light emitting device.

[0012] The display device of the embodiment of the present application includes a substrate, a shading component, an adhesive component and a plurality of light-emitting devices. Part of the shading component is a hard part, which forms an isolation area to block interfering light and avoid crosstalk. The adhesive component is filled between the shading component, the light-emitting device and the substrate, and is used to bond the substrate, the shading component and the plurality of light-emitting devices to ensure the stability and reliability of the display device. The shading component can prevent interfering light from being directed to adjacent light-emitting devices, thereby improving the working efficiency and stability of the display device. Using at least part of the hard parts to make the shading component helps to reduce the scattering and diffraction of the light beam, further improves the optical performance of the display device, and thus improves the luminous efficiency of the display device. Through the above-mentioned arrangement, it is possible to effectively avoid crosstalk in the display device and improve the luminous efficiency of the display device, thereby ensuring the display effect of the display device.

[0013] In some embodiments of the present application, the light-emitting device includes a light-emitting unit and a fluorescent layer which are stacked along the thickness direction of the substrate, the light-emitting unit is arranged on the substrate, and the fluorescent layer is arranged on the side of the light-emitting unit away from the substrate; the shading assembly includes a first light-shielding member and a second light-shielding member which are stacked along the thickness direction of the substrate, the bottom surface of the first light-shielding member abuts the bottom of the groove, and the top surface of the first light-shielding member is flush with the top surface of the light-emitting unit; the second light-shielding member is arranged on the side of the first light-shielding member away from the substrate, and the bottom surface of the second light-shielding member abuts the top surface of the first light-shielding member.

[0014] In this arrangement, the first shading member and the second shading member together form a shading assembly to block interfering light; on the one hand, better light beam control can be achieved, and a better shading effect can be achieved, which can improve the display effect of the display device; on the other hand, by stacking the first shading member and the second shading member, it is helpful to reduce the difficulty of making the shading assembly, and it can be more adaptable to the gap between adjacent light-emitting devices, which can improve the luminous efficiency and enhance the light beam blocking effect of the shading assembly.

[0015] In some embodiments of the present application, along the thickness direction of the substrate, the first light shielding member and the second light shielding member each have a large-diameter end and a small-diameter end, and the cross-sectional area of ​​the large-diameter end is larger than the cross-sectional area of ​​the small-diameter end;

[0016] The small-diameter end of the first light shielding member abuts against the groove bottom of the groove, and one of the large-diameter end and the small-diameter end of the second light shielding member abuts against the large-diameter end of the first light shielding member.

[0017] With such a configuration, the large-diameter end and the small-diameter end of different sizes can make the installation of the first light shading member and the second light shading member more stable, increase the stability and blocking efficiency of the light shading component, provide better blocking effect, and thus improve the display effect of the display device; the first light shading member and the second light shading member are placed in the same manner, which can simplify the installation process of the first light shading member and the second light shading member, and is beneficial to improving the assembly efficiency of the display device; when the second light shading member is placed upright, the side of the second light shading member can be used to reflect interference light to change the transmission direction of the interference light, and part of the interference light can be converted into target light, thereby improving the luminous efficiency of the display device.

[0018] In some embodiments of the present application, when the large diameter end of the second light shielding member abuts against the large diameter end of the first light shielding member,

[0019] The display device is further provided with a reflective member, which is provided on a side surface of the second light shielding member and is used to reflect the interfering light;

[0020] and / or, the angle between the side surface and the bottom surface of the second light shielding member is greater than or equal to 45°;

[0021] And / or, the angle between the side surface and the bottom surface of the second light shielding member is less than or equal to 90°.

[0022] With such a configuration, the reflective member can improve the reflective performance of the second shading member to reflect the interference light as much as possible, thereby converting the interference light into target light; the second shading member can reflect the interference light to change the transmission direction of the interference light, and can convert part of the interference light into target light, thereby improving the luminous efficiency of the display device.

[0023] In some embodiments of the present application, the top surface of the light-shielding component is flush with the top surface of the light-emitting device, or the top surface of the light-shielding component is located on a side of the top surface of the light-emitting device away from the substrate;

[0024] And / or, the shading component is a semiconductor structure or a metal structure;

[0025] And / or, the shading component is located between a plurality of adjacent light-emitting devices.

[0026] In this way, the flush setting can more easily achieve the flatness and alignment of the overall assembly of the display device, help ensure a stable connection between the shading component and the light-emitting device, improve the assembly efficiency of the display device, reduce errors or problems that may occur during the installation process, and at the same time help to make the appearance of the display device neat; the non-flush setting can make the light beam enter or diffract at a specific angle or direction to achieve different light beam control effects, optimize light transmission and control, and help improve the optical performance and display effect of the display device.

[0027] In some embodiments of the present application, along the thickness direction of the substrate,

[0028] The light-emitting unit includes an electrode and an epitaxial layer that are stacked, and the electrode is located on a side of the epitaxial layer close to the substrate;

[0029] Alternatively, the light emitting unit includes an electrode, an epitaxial layer, and a growth substrate that are stacked, the electrode is located on a side of the epitaxial layer close to the substrate, and the growth substrate is located on a side of the epitaxial layer away from the substrate.

[0030] This arrangement simplifies the structure and process flow, improves luminous efficiency, reduces optical losses, and helps lower manufacturing costs. The growth substrate can further optimize the crystallization quality and growth process of the epitaxial layer, improving the performance and stability of the LED device. Furthermore, the use of the growth substrate can improve the crystal structure of the epitaxial layer, reduce lattice mismatch and defects, and enhance luminous efficiency and optoelectronic performance.

[0031] In a second aspect, an embodiment of the present application further provides a display device, comprising a substrate, a light shielding assembly, an adhesive, and a plurality of light-emitting devices.

[0032] The substrate includes a groove area and a mounting area, the groove area and the mounting area are spaced apart, and the groove area is formed with a plurality of grooves arranged in an array;

[0033] A plurality of light-emitting devices are arranged in an array on the mounting area of ​​the substrate, and the light beams emitted by the light-emitting devices include target light and interference light, the target light is located on the light-emitting side of the light-emitting device, and the interference light is located on the peripheral side of the light-emitting side;

[0034] The shading component is inserted between adjacent light emitting devices, and there is a gap between each light emitting device. The bottom surface of the shading component abuts against the bottom of the groove, and at least a part of the shading component is a hard part.

[0035] The adhesive is filled between the shading component, the light emitting device and the substrate, and is used to bond the shading component, the light emitting device and the substrate;

[0036] The shading component is used to shield the interfering light emitted by the light emitting device to prevent the interfering light from radiating to the adjacent light emitting device.

[0037] The display device of the embodiment of the present application includes a substrate, a shading component, an adhesive component and a plurality of light-emitting devices. Part of the shading component is a hard part, which forms an isolation area to block interfering light and avoid crosstalk. The adhesive component is filled between the shading component, the light-emitting device and the substrate, and is used to bond the substrate, the shading component and the plurality of light-emitting devices to ensure the stability and reliability of the display device. The shading component can prevent interfering light from being directed to adjacent light-emitting devices, thereby improving the working efficiency and stability of the display device. Using at least part of the hard parts to make the shading component helps to reduce the scattering and diffraction of the light beam, further improves the optical performance of the display device, and thus improves the luminous efficiency of the display device. Through the above-mentioned arrangement, it is possible to effectively avoid crosstalk in the display device and improve the luminous efficiency of the display device, thereby ensuring the display effect of the display device.

[0038] In a third aspect, an embodiment of the present application further provides a method for manufacturing a display device, for forming the display device, the method comprising:

[0039] providing a substrate;

[0040] Etching the substrate to form a plurality of grooves arranged in an array on the substrate to form groove areas and mounting areas that are spaced apart;

[0041] forming a pad on the substrate located on the mounting area;

[0042] electrically connecting the light emitting device to the substrate via the solder pad;

[0043] Inserting a shading component between adjacent light emitting devices so that the bottom surface of the shading component abuts against the bottom of the groove, wherein at least a portion of the shading component is a hard component;

[0044] An adhesive is provided and filled between the shading component, the light emitting device and the substrate. After the adhesive is cured, an adhesive member is formed. The adhesive member is bonded between the shading component, the light emitting device and the substrate to form the display device.

[0045] The preparation method of the display device in the embodiment of the present application realizes the electrical connection between the light-emitting device and the substrate, ensuring the normal operation of the light-emitting device; plugging and bonding the shading component to help block light and reduce crosstalk; the shading component is partially a hard part, which helps to isolate the light and signals between different light-emitting devices; using adhesive for fixing can effectively reduce the risk of crosstalk; the display device preparation process is relatively simple, with high production efficiency and low cost; crosstalk is suppressed to improve display effect and quality.

[0046] In some embodiments of the present application, the light-emitting device is electrically connected to the substrate via the solder pad, and the light-shielding component is inserted between a plurality of adjacent light-emitting devices so that the bottom surface of the light-shielding component abuts against the bottom of the groove. At least a portion of the light-shielding component is a hard component, including:

[0047] electrically connecting the light emitting unit to the substrate via the solder pad;

[0048] Placing the bottom surface of the first light shielding member against the bottom of the groove;

[0049] Disposing a fluorescent layer on a side of the light-emitting unit away from the substrate to form the light-emitting device;

[0050] The second light shielding member is arranged on a side of the first light shielding member away from the substrate, and the bottom surface of the second light shielding member is abutted against the top surface of the first light shielding member to form the light shielding assembly.

[0051] Such an arrangement can realize the installation of the shading component and the connection of the light-emitting device, realize the functions of shading and anti-crosstalk in the LED display device, and thus improve the display effect and quality of the display device.

[0052] In some embodiments of the present application, the light-emitting unit includes a stacked electrode, an epitaxial layer, and a growth substrate, wherein the electrode is located on a side of the epitaxial layer close to the substrate, and the growth substrate is located on a side of the epitaxial layer away from the substrate;

[0053] After the light emitting unit is electrically connected to the substrate via the pad; and before the bottom surface of the first light shielding member is brought into contact with the bottom of the groove, the method further includes:

[0054] The growth substrate is removed by laser lift-off or wet etching.

[0055] Such an arrangement can optimize the structural composition of the LED device, improve the luminous efficiency and device stability, and reduce the preparation cost, thereby improving the performance of the display device and improving the preparation efficiency of the display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the implementation methods in the embodiments of the present application or related technologies, the following is a brief introduction to the drawings required for use in the embodiments or related technology descriptions. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0057] Figure 1 A schematic diagram of the first structure of the display device provided in an embodiment of the present application;

[0058] Figure 2 A second structural diagram of the display device provided in an embodiment of the present application;

[0059] Figure 3 A third structural schematic diagram of the display device provided in an embodiment of the present application;

[0060] Figure 4 A fourth structural schematic diagram of the display device provided in an embodiment of the present application;

[0061] Figure 5 A fifth structural schematic diagram of the display device provided in an embodiment of the present application;

[0062] Figure 6 A sixth structural diagram of the display device provided in an embodiment of the present application;

[0063] Figure 7 A seventh structural schematic diagram of the display device provided in an embodiment of the present application;

[0064] Figure 8 This is a schematic diagram of an eighth structure of the display device provided in an embodiment of the present application;

[0065] Figure 9 A ninth structural diagram of a display device provided in an embodiment of the present application;

[0066] Figure 10 A tenth structural schematic diagram of a display device provided in an embodiment of the present application;

[0067] Figure 11 This is a schematic diagram of an eleventh structure of a display device provided in an embodiment of the present application;

[0068] Figure 12 This is a twelfth structural schematic diagram of the display device provided in an embodiment of the present application;

[0069] Figure 13 A schematic diagram of a first structure of a light-emitting device of a display device provided in an embodiment of the present application;

[0070] Figure 14 A schematic diagram of a second structure of a light-emitting device of a display device provided in an embodiment of the present application;

[0071] Figure 15 A third structural schematic diagram of the light-emitting device of the display device provided in an embodiment of the present application;

[0072] Figure 16 A fourth structural schematic diagram of the light-emitting device of the display device provided in an embodiment of the present application;

[0073] Figure 17A fifth structural schematic diagram of the light-emitting device of the display device provided in an embodiment of the present application;

[0074] Figure 18 A sixth structural schematic diagram of the light-emitting device of the display device provided in an embodiment of the present application;

[0075] Figure 19 A schematic diagram of a first process of a method for manufacturing a display device provided in an embodiment of the present application;

[0076] Figure 20 A schematic structural diagram of a first process of a method for manufacturing a display device provided in an embodiment of the present application;

[0077] Figure 21 A second flow chart of the method for manufacturing a display device provided in an embodiment of the present application;

[0078] Figure 22 A schematic structural diagram of a second process of the method for manufacturing a display device provided in an embodiment of the present application;

[0079] Figure 23 This is a structural schematic diagram of the third process of the method for manufacturing a display device provided in an embodiment of the present application.

[0080] Description of reference numerals:

[0081] 10-Display device;

[0082] 100-substrate;

[0083] 110-groove area; 120-installation area; 130-groove; 131-groove bottom;

[0084] 200-shading component;

[0085] 210-the first light-shielding member; 220-the second light-shielding member; 201-large diameter end; 202-small diameter end;

[0086] 300-adhesive parts;

[0087] 400-light emitting device;

[0088] 410 - light-emitting unit; 411 - electrode; 412 - epitaxial layer; 413 - growth substrate; 414 - bonding layer;

[0089] 420-fluorescent layer;

[0090] 500-pad;

[0091] 600-Reflective piece. DETAILED DESCRIPTION

[0092] With the development of electronic information technology, intelligent lighting systems—adaptive headlights—have emerged. Matrix headlights are composed of multiple LEDs arranged in one or more regular rows. Each LED can be individually controlled to turn on and off based on commands from a controller. This allows for rapid control of the light distribution projected by the headlights, tailored to the driving scenario. For example, the light can be dimmed or turned off for oncoming and forward vehicles, while also illuminating pedestrians on both sides of the road, significantly improving driving safety.

[0093] In the current matrix headlight packaging structure, LEDs are integrated onto the packaging substrate, integrated with fluorescent materials, and packaging glue is filled in the gaps between the LEDs. White glue has a higher reflectivity, but is prone to crosstalk; black glue can suppress crosstalk, but black has a greater impact on the luminous efficiency of the LED, and when the LEDs are closely spaced, crosstalk may still occur; first fill with white glue, the white glue solidifies to form white wall glue, and then open holes in the white wall glue to fill with black glue. This method is difficult to produce and has high costs. When the LEDs are closely spaced, crosstalk cannot be avoided, and the luminous efficiency also suffers to a certain extent. Therefore, the glue cannot take into account both luminous efficiency and crosstalk suppression at the same time, which can easily affect the display effect of the display device.

[0094] In view of this, an embodiment of the present application provides a display device and a preparation method thereof, wherein the display device includes a substrate, a shading assembly, an adhesive and a plurality of light-emitting devices, the substrate including a groove area and a mounting area, the groove area and the mounting area are spaced apart, and the groove area forms a plurality of grooves arranged in an array; the plurality of light-emitting devices are arranged in an array in the mounting area of ​​the substrate, the light beams emitted by the light-emitting devices include target light and interference light, the target light is located on the light-emitting side of the light-emitting device, and the interference light is located on the peripheral side of the light-emitting side; the shading assembly is inserted between adjacent light-emitting devices, and there is a gap between the shading assembly and each light-emitting device, the bottom surface of the shading assembly abuts the bottom of the groove, and at least part of the shading assembly is a hard part; the adhesive is filled between the shading assembly, the light-emitting device and the substrate, and the adhesive is used to bond the shading assembly, the light-emitting device and the substrate; the shading assembly is used to block the interference light emitted by the light-emitting device to prevent the interference light from being directed to adjacent light-emitting devices.

[0095] The display device and preparation method thereof provided in an embodiment of the present application, the display device includes a substrate, a shading component, an adhesive component and a plurality of light-emitting devices. Part of the shading component is a hard part, which forms an isolation area to block interfering light and avoid crosstalk. The adhesive component is filled between the shading component, the light-emitting device and the substrate, and is used to bond the substrate, the shading component and the plurality of light-emitting devices to ensure the stability and reliability of the display device. The shading component can prevent interfering light from being directed to adjacent light-emitting devices, thereby improving the working efficiency and stability of the display device. Using at least part of the hard parts to make the shading component helps to reduce the scattering and diffraction of the light beam, further improves the optical performance of the display device, and thus improves the luminous efficiency of the display device. Through the above-mentioned arrangement, it is possible to effectively avoid crosstalk in the display device and improve the luminous efficiency of the display device, thereby ensuring the display effect of the display device.

[0096] In order to make the purpose, implementation mode and advantages of the present application clearer, the exemplary implementation mode of the present application will be clearly and completely described below in conjunction with the drawings in the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0097] It should be noted that the brief descriptions of terms in this application are only for the purpose of facilitating the understanding of the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their ordinary and usual meanings.

[0098] In addition, the terms "comprises" and "comprising" and any variations thereof are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to those components expressly listed but may include other components not expressly listed or inherent to such product or device.

[0099] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0100] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0101] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0102] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0103] Reference Figures 1-18 As shown, in a first aspect, an embodiment of the present application provides a display device 10 , including a substrate 100 , a light shielding assembly 200 , an adhesive 300 and a plurality of light-emitting devices 400 .

[0104] Specifically, the substrate 100 includes a groove area 110 and a mounting area 120. The groove area 110 and the mounting area 120 are spaced apart from each other. The groove area 110 is formed with a plurality of grooves 130 arranged in an array, that is, the groove area 110 can be divided into a plurality of areas by the mounting area 120, and each area forms a groove 130. The material of the substrate 100 can be a silicon substrate or other substrate 100 material suitable for the display device 10. It is understandable that the shape of the groove 130 can be arbitrary. Along the thickness direction of the substrate 100, the cross-sectional shape of the groove 130 can be rectangular, trapezoidal, or triangular. The embodiment of the present application does not limit the specific shape of the groove 130, nor is it limited to the above examples.

[0105] The plurality of light emitting devices 400 are arranged in an array on the mounting area 120 of the substrate 100 , so that the plurality of light emitting devices 400 can be arranged in an array at intervals on the substrate 100 , and there is a groove area 110 between any two adjacent light emitting devices 400 .

[0106] The light beam emitted by the light-emitting device 400 includes target light and interference light. The target light is located on the light-emitting side of the light-emitting device 400, and the interference light is located on the peripheral side of the light-emitting side. It is understood that the target light can be a light beam located within the orthographic projection of the light-emitting device 400 along the thickness direction of the substrate 100, and the interference light is a light beam located outside the orthographic projection of the light-emitting device 400 along the thickness direction of the substrate 100. Therefore, among multiple light-emitting devices 400 arranged adjacent to each other in an array, the interference light is easily mixed with the target light of adjacent light-emitting devices 400, causing crosstalk.

[0107] The shading assembly 200 is inserted between adjacent light-emitting devices 400, with a gap between each light-emitting device 400 to ensure that the shading assembly 200 can be positioned between adjacent light-emitting devices 400. The bottom surface of the shading assembly 200 abuts the groove bottom 131 of the groove 130 to form a mortise and tenon structure, that is, the shading assembly 200 can be inserted into the substrate 100 through the groove 130. The shading assembly 200 is used to block interfering light emitted by the light-emitting devices 400 to prevent the interfering light from being directed to adjacent light-emitting devices 400.

[0108] At least a portion of the shading assembly 200 is a hard component. On the one hand, using a hard component as part of the shading assembly 200 can provide better mechanical protection. The hard component can increase the strength and rigidity of the shading assembly 200, thereby effectively resisting damage caused by external collisions or extrusion, and protecting the internal light-emitting device 400 and substrate 100 from damage. On the other hand, the hard component can ensure that the shading assembly 200 maintains its shape and position stability during long-term use, reducing performance degradation due to material deformation or aging. On another hand, the hard component can maintain its shape and surface flatness, which helps reduce optical problems such as light refraction or light leakage, and helps maintain the consistency of the light beam transmission of the light-emitting device 400, thereby improving the optical performance and display effect of the display device 10. Finally, the hard component is easier to bond and fix, which facilitates the controllability and stability of the assembly process, improves production efficiency, reduces errors or problems that may occur during the assembly process, and improves production cost-effectiveness.

[0109] The adhesive 300 is filled between the shading component 200, the light-emitting device 400 and the substrate 100. The adhesive 300 is used to bond the shading component 200, the light-emitting device 400 and the substrate 100. It can be understood that the adhesive 300 can be in various forms. For example, the adhesive 300 can be a tape, a sealant, a silicone, an epoxy resin, etc. The embodiment of the present application does not limit the specific form of the adhesive 300, nor is it limited to the above examples.

[0110] The display device 10 of the embodiment of the present application includes a substrate 100, a shading component 200, an adhesive 300 and a plurality of light-emitting devices 400. Part of the shading component 200 is a hard part, forming an isolation area to block interfering light and avoid crosstalk. The adhesive 300 is filled between the shading component 200, the light-emitting device 400 and the substrate 100, and is used to bond the substrate 100, the shading component 200 and the plurality of light-emitting devices 400 to ensure the stability and reliability of the display device 10. The shading component 200 can prevent interfering light from being directed to adjacent light-emitting devices 400, thereby improving the working efficiency and stability of the display device 10. Using at least part of the hard parts to make the shading component 200 helps to reduce the scattering and diffraction of the light beam, further improves the optical performance of the display device 10, and thereby improves the luminous efficiency of the display device 10. Through the above-mentioned arrangement, crosstalk can be effectively avoided in the display device 10, and the luminous efficiency of the display device 10 can be improved, thereby ensuring the display effect of the display device 10.

[0111] Reference Figures 1-18 As shown, in some possible embodiments, the light-emitting device 400 includes a light-emitting unit 410 and a fluorescent layer 420 stacked along the thickness of the substrate 100. The light-emitting unit 410 is disposed on the substrate 100 and is typically an LED chip. The LED chip is a key component for achieving photoelectric conversion. Current drives the LED chip to emit light, forming target light and interference light.

[0112] Phosphor layer 420 is disposed on the side of light-emitting unit 410 facing away from substrate 100. Phosphor layer 420 is disposed on the side of light-emitting unit 410 facing away from substrate 100 and is used to convert blue light emitted by the LED into other colors, such as white light. The selection and design of phosphor layer 420 can be determined based on specific application requirements to achieve the desired spectral characteristics and color effects.

[0113] The shading assembly 200 includes a first shading member 210 and a second shading member 220 which are stacked along the thickness direction of the substrate 100. The bottom surface of the first shading member 210 abuts the bottom 131 of the groove 130, which can provide stable support and shading effect; the top surface of the first shading member 210 is flush with the top surface of the light-emitting unit 410, ensuring that the interference light emitted by the light-emitting device 400 is effectively blocked; the second shading member 220 is arranged on the side of the first shading member 210 away from the substrate 100, and the bottom surface of the second shading member 220 abuts the top surface of the first shading member 210 to form a multi-layer shading structure, which can further reduce the leakage of interference light, enhance the overall shading effect, and improve the display effect of the display device 10.

[0114] Through the above-mentioned setting, the first light shading member 210 and the second light shading member 220 jointly form a light shading assembly 200 to complete the shielding of interfering light; on the one hand, better light beam control can be achieved, and a better light shading effect can be achieved, which can improve the display effect of the display device 10; in addition, by stacking the first light shading member 210 and the second light shading member 220, it is beneficial to reduce the difficulty of making the shielding assembly, and can be more adapted to the gap between adjacent light-emitting devices 400, which can improve the luminous efficiency and enhance the light beam blocking effect of the shielding assembly.

[0115] Reference Figures 1-18 As shown, in some possible embodiments, along the thickness direction of the substrate 100, the first light shielding member 210 and the second light shielding member 220 each have a large-diameter end 201 and a small-diameter end 202, and the cross-sectional area of ​​the large-diameter end 201 is larger than the cross-sectional area of ​​the small-diameter end 202. Exemplarily, the cross-sectional shape of the first light shielding member 210 and the second light shielding member 220 along the thickness direction of the substrate 100 is a trapezoid. Furthermore, the cross-sectional shape of the first light shielding member 210 and the second light shielding member 220 along the thickness direction of the substrate 100 may be an isosceles trapezoid.

[0116] By providing large-diameter ends 201 and small-diameter ends 202 of different sizes, the first shading member 210 and the second shading member 220 can be installed more firmly, thereby increasing the stability and shading efficiency of the shading assembly 200, providing a better shading effect, and thus improving the display effect of the display device 10.

[0117] Reference Figures 1-18 As shown, the small-diameter end 202 of the first light shielding member 210 abuts the groove bottom 131 of the groove 130. At this time, the cross-sectional shape of the first light shielding member 210 along the thickness direction of the substrate 100 is an inverted trapezoid. It should be noted that an inverted trapezoid means that of the two parallel sides of the trapezoid, the longer side is located above the shorter side; an upright trapezoid means that the longer side is located below the shorter side.

[0118] One of the large diameter end 201 and the small diameter end 202 of the second light shielding member 220 abuts the large diameter end 201 of the first light shielding member 210 .

[0119] Through the above settings, it can be understood that, referring to Figure 1 、 Figure 4 、 Figure 7 and Figure 10As shown, in some embodiments, the small diameter end 202 of the second light shading member 220 abuts against the large diameter end 201 of the first light shading member 210. At this time, the second light shading member 220 and the first light shading member 210 are both inverted, that is, the placement of the first light shading member 210 and the second light shading member 220 are consistent, which can simplify the installation process of the first light shading member 210 and the second light shading member 220, which is beneficial to improving the assembly efficiency of the display device 10.

[0120] It is understandable that, referring to Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 、 Figure 8 、 Figure 11 and Figure 12 As shown, in some other embodiments, the large diameter end 201 of the second light shielding member 220 abuts the large diameter end 201 of the first light shielding member 210. In this case, the second light shielding member 220 is upright and the first light shielding member 210 is inverted. The contact area between the first light shielding member 210 and the second light shielding member 220 is larger, which can improve the connection strength between the first light shielding member 210 and the second light shielding member 220, thereby improving the structural performance of the shielding assembly. In addition, when the second light shielding member 220 is placed upright, the side surface of the second light shielding member 220 can be used to reflect interfering light, thereby changing the transmission direction of the interfering light and converting some of the interfering light into target light, thereby improving the luminous efficiency of the display device 10.

[0121] In some possible implementations, reference Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 、 Figure 8 、 Figure 9 、 Figure 11 and Figure 12 As shown, when the large diameter end 201 of the second light shielding member 220 abuts against the large diameter end 201 of the first light shielding member 210, that is, the second light shielding member 220 is upright:

[0122] In some embodiments, reference Figure 3 、 Figure 6 、 Figure 9 and Figure 12 As shown, the display device 10 is further provided with a reflective member 600. The reflective member 600 is disposed on the side of the second light-shielding member 220 and is used to reflect interfering light. It is understood that the reflective member 600 can be a metal plate, a reflective film, a high-reflectivity plastic, an optical fiber material, etc. The embodiment of the present application does not limit the specific form of the reflective member 600, nor is it limited to the above example, and can be selected according to actual circumstances.

[0123] By providing the reflective element 600 , the reflective performance of the second light shielding element 220 can be improved, so as to reflect the interference light as much as possible, thereby converting the interference light into target light.

[0124] In some embodiments, the angle between the side surface and the bottom surface of the second light shielding member 220 is greater than or equal to a first parameter value, which may be 45°, 60°, 75°, 90°, 120°, 150°, 180°, 270°, 360°, etc., which are not exhaustive. That is, the angle between the side surface and the bottom surface of the second light shielding member 220 is greater than or equal to 45°.

[0125] In some embodiments, the angle between the side surface and the bottom surface of the second light shielding member 220 is less than or equal to a second parameter value, which can be 0°, 30°, 45°, 60°, 75°, 90°, etc., which are not exhaustive. The angle between the side surface and the bottom surface of the second light shielding member 220 is less than or equal to 90°.

[0126] Of course, the angle between the side and bottom of the second light-shielding member 220 can also be greater than or equal to the first parameter value and less than or equal to the second parameter value. The angle between the side and bottom of the second light-shielding member 220 ranges from 45° to 90°. At this time, the angle between the side and bottom of the second light-shielding member 220 can take values ​​such as 45°, 60°, 75°, 90°, etc., which are not listed exhaustively here.

[0127] Through the above-mentioned setting, the side surface of the second light-shielding member 220 can face the positive projection of the corresponding light-emitting device 400 (along the thickness direction of the substrate 100). In this way, the second light-shielding member 220 can reflect the interference light to change the transmission direction of the interference light, and can convert part of the interference light into target light, thereby improving the luminous efficiency of the display device 10.

[0128] In some possible implementations, reference Figure 1-Figure 3 、 Figure 7-Figure 9 As shown, the top surface of the light shading component 200 is flush with the top surface of the light emitting device 400. At this time, the top surface of the light shading component 200 and the top surface of the light emitting device 400 have the same horizontal height, that is, they are flush.

[0129] Through the above-mentioned arrangement, it is easier to achieve the flatness and alignment of the overall assembly of the display device 10, which helps to ensure a stable connection between the shading component 200 and the light-emitting device 400, improves the assembly efficiency of the display device 10, reduces errors or problems that may occur during the installation process, and helps to make the appearance of the display device 10 neat.

[0130] In some other possible implementations, refer to Figure 4-Figure 6 、 Figure 10-12As shown, the top surface of the shading component 200 is located on the side of the top surface of the light emitting device 400 away from the substrate 100, that is, the top surface of the shading component 200 is located above the top surface of the light emitting device 400, that is, in a non-level state.

[0131] Through the above settings, the light beam can enter or diffract at a specific angle or direction to achieve different light beam control effects, optimize light transmission and control, and help improve the optical performance and display effect of the display device 10.

[0132] In some possible implementations, the light shielding component 200 is a semiconductor structure or a metal structure.

[0133] It should be noted that when the light shielding component 200 is a semiconductor structure, the semiconductor material may include silicon, gallium arsenide, gallium nitride, cadmium selenide, etc. For example, gallium nitride has high photoelectric conversion efficiency and high brightness, which can improve luminous efficiency. When the light shielding component 200 is a metal structure, the metal material may include aluminum, iron, copper, zinc, or nickel, etc. The embodiment of the present application does not limit the material of the light shielding component 200, nor is it limited to the above examples.

[0134] Through the above arrangement, the semiconductor structure has a higher luminous efficiency, and the metal structure has good thermal conductivity and stability. By selecting semiconductor or metal materials as the material of the shading component 200, efficient light reflection and conduction can be achieved.

[0135] In some possible implementations, the shading assembly 200 is located between a plurality of adjacent light emitting devices 400 .

[0136] Through the above-mentioned setting, the shading component 200 located between the light-emitting devices 400 can more effectively block interfering light, reduce the probability of crosstalk, and improve the clarity and stability of the display device 10; through the shading component 200 located between the light-emitting devices 400, more uniform light control can be achieved, avoiding problems of uneven light or light leakage, and improving the display effect; the position design of the shading component 200 can better adapt to the layout of the light-emitting devices 400, and can achieve a more compact and stable component structure, thereby improving assembly efficiency and reliability.

[0137] In some possible implementations, reference Figures 1-6 、 Figures 13-18As shown, along the thickness direction of the substrate 100, the light-emitting unit 410 includes an electrode 411 and an epitaxial layer 412 arranged in a stacked manner, and the electrode 411 is located on the side of the epitaxial layer 412 close to the substrate 100. Among them, the electrode 411 is generally used to provide current to the epitaxial layer 412 to stimulate the light-emitting process. As a key component for connecting to an external power supply, the electrode 411 is generally a metal material with good conductivity and stability. The epitaxial layer 412 is a semiconductor material, such as gallium nitride (GaN), which is used to generate photoelectric conversion and generate photon emission.

[0138] By setting the light emitting unit 410 of the above structure, the structure and process flow can be simplified, the light emitting efficiency can be improved, the optical loss can be reduced, and the manufacturing cost can be reduced.

[0139] In some embodiments, reference Figures 13-18 As shown, light-emitting unit 410 further includes a bonding layer 414, which is located on the side of epitaxial layer 412 away from substrate 100 and is used to connect to phosphor layer 420. Bonding layer 414 is a key component for connecting epitaxial layer 412 and phosphor layer 420, and its primary function is to provide mechanical support and electrical connection. Bonding layer 414 is typically made of a metal material, such as gold, silver, or copper, to ensure good electrical conductivity and mechanical strength.

[0140] It should be noted that there is a size relationship between the fluorescent layer 420 and the light emitting unit 410. Figures 13-18 As shown, along the thickness direction of the substrate, the fluorescent layer 420 at least covers the light emitting unit 410. Figure 13 As shown, the fluorescent layer 420 may just cover the light emitting unit 410 .

[0141] Another exemplary reference Figures 14-18 As shown, the light emitting unit 410 can be located within the orthographic projection of the fluorescent layer 420 on the substrate 100. The fluorescent layer 420 can cover a portion of the thickness of the light emitting unit 410. In this case, the fluorescent layer 420 has a mounting groove 421. Specifically, referring to Figure 15 As shown, the fluorescent layer 420 can cover a portion of the thickness of the bonding layer 414, and the portion of the thickness of the bonding layer 414 is located in the mounting groove 421; Figure 16 As shown, the fluorescent layer 420 can cover the bonding layer 414 and the epitaxial layer 412, and the bonding layer 414 and the epitaxial layer 412 are both located in the mounting groove 421; Figure 17-18 As shown, the size of the groove wall of the mounting groove 421 can be gradually increased from the fluorescent layer 420 in the direction away from the substrate 100. At this time, part of the groove wall of the mounting groove 421 can abut against the bonding layer 414, as shown in FIG. Figure 17 In addition, part of the groove wall of the mounting groove 421 may also only abut against the epitaxial layer 412, as shown. Figure 18 shown.

[0142] It is understandable that the present application does not impose any limitation on the size correspondence between the light-emitting unit 410 and the fluorescent layer 420 , nor is it limited to the above examples.

[0143] In some other possible implementations, refer to Figure 17-Figure 12 As shown, along the thickness direction of the substrate 100, the light-emitting unit 410 includes a stacked electrode 411, an epitaxial layer 412 and a growth substrate 413. The electrode 411 is located on the side of the epitaxial layer 412 close to the substrate 100, and the growth substrate 413 is located on the side of the epitaxial layer 412 away from the substrate 100. Among them, the electrode 411 is generally used to provide current to the epitaxial layer 412 to stimulate the light-emitting process. As a key component for connecting an external power supply, the electrode 411 is generally a metal material with good electrical conductivity and stability. The epitaxial layer 412 is a semiconductor material, such as gallium nitride (GN), etc., which is used for photoelectric conversion and photon emission. The growth substrate 413 is generally a material used to support the growth of the epitaxial layer 412 and provide crystal orientation matching, such as sapphire.

[0144] By configuring the light-emitting unit 410 with the aforementioned structure, the growth substrate 413 can further optimize the crystallization quality and growth process of the epitaxial layer 412, thereby improving the performance and stability of the LED device. Furthermore, the use of the growth substrate 413 can improve the crystal structure of the epitaxial layer 412, reduce lattice mismatch and defects, and enhance luminous efficiency and optoelectronic performance.

[0145] Reference Figures 1-18 As shown, in a second aspect, an embodiment of the present application further provides a display device 10 , including a substrate 100 , a light shielding assembly 200 , an adhesive 300 and a plurality of light-emitting devices 400 .

[0146] Specifically, the substrate 100 includes a recessed area 110 and a mounting area 120. The recessed area 110 and the mounting area 120 are spaced apart from each other. The recessed area 110 is formed with a plurality of recesses 130 arranged in an array. That is, the recessed area 110 can be divided into a plurality of regions by the mounting area 120, each of which forms a recess 130. The material of the substrate 100 can be a silicon substrate or other substrate 100 material suitable for the display device 10.

[0147] The plurality of light emitting devices 400 are arranged in an array on the mounting area 120 of the substrate 100 , so that the plurality of light emitting devices 400 can be arranged in an array at intervals on the substrate 100 , and there is a groove area 110 between any two adjacent light emitting devices 400 .

[0148] The light beam emitted by the light-emitting device 400 includes target light and interference light. The target light is located on the light-emitting side of the light-emitting device 400, and the interference light is located on the peripheral side of the light-emitting side. It is understood that the target light can be a light beam located within the orthographic projection of the light-emitting device 400 along the thickness direction of the substrate 100, and the interference light is a light beam located outside the orthographic projection of the light-emitting device 400 along the thickness direction of the substrate 100. Therefore, among multiple light-emitting devices 400 arranged adjacent to each other in an array, the interference light is easily mixed with the target light of adjacent light-emitting devices 400, causing crosstalk.

[0149] The shading assembly 200 is inserted between adjacent light-emitting devices 400, with a gap between each light-emitting device 400 to ensure that the shading assembly 200 can be positioned between adjacent light-emitting devices 400. The bottom surface of the shading assembly 200 abuts the groove bottom 131 of the groove 130 to form a mortise and tenon structure, that is, the shading assembly 200 can be inserted into the substrate 100 through the groove 130. The shading assembly 200 is used to block interfering light emitted by the light-emitting devices 400 to prevent the interfering light from being directed to adjacent light-emitting devices 400.

[0150] At least a portion of the shading assembly 200 is a hard component. On the one hand, using a hard component as part of the shading assembly 200 can provide better mechanical protection. The hard component can increase the strength and rigidity of the shading assembly 200, thereby effectively resisting damage caused by external collisions or extrusion, and protecting the internal light-emitting device 400 and substrate 100 from damage. On the other hand, the hard component can ensure that the shading assembly 200 maintains its shape and position stability during long-term use, reducing performance degradation due to material deformation or aging. On another hand, the hard component can maintain its shape and surface flatness, which helps reduce optical problems such as light refraction or light leakage, and helps maintain the consistency of the light beam transmission of the light-emitting device 400, thereby improving the optical performance and display effect of the display device 10. Finally, the hard component is easier to bond and fix, which facilitates the controllability and stability of the assembly process, improves production efficiency, reduces errors or problems that may occur during the assembly process, and improves production cost-effectiveness.

[0151] The adhesive member 300 is filled between the light-shielding component 200 , the light-emitting device 400 and the substrate 100 . The adhesive member 300 is used to bond the light-shielding component 200 , the light-emitting device 400 and the substrate 100 .

[0152] The display device 10 of the embodiment of the present application includes a substrate 100, a shading component 200, an adhesive 300 and a plurality of light-emitting devices 400. Part of the shading component 200 is a hard part, forming an isolation area to block interfering light and avoid crosstalk. The adhesive 300 is filled between the shading component 200, the light-emitting device 400 and the substrate 100, and is used to bond the substrate 100, the shading component 200 and the plurality of light-emitting devices 400 to ensure the stability and reliability of the display device 10. The shading component 200 can prevent interfering light from being directed to adjacent light-emitting devices 400, thereby improving the working efficiency and stability of the display device 10. Using at least part of the hard parts to make the shading component 200 helps to reduce the scattering and diffraction of the light beam, further improves the optical performance of the display device 10, and thereby improves the luminous efficiency of the display device 10. Through the above-mentioned arrangement, crosstalk can be effectively avoided in the display device 10, and the luminous efficiency of the display device 10 can be improved, thereby ensuring the display effect of the display device 10.

[0153] Reference Figures 19-23 As shown, in the third aspect, the embodiment of the present application further provides a method for preparing a display device 10, for forming a display device 10, referring to Figure 19 and Figure 20 As shown, the preparation method includes:

[0154] S100, providing a substrate;

[0155] S200 , etching the substrate to form a plurality of grooves arranged in an array on the substrate to form groove areas and mounting areas that are spaced apart.

[0156] Specifically, the substrate 100 is etched to form a plurality of arrayed grooves 130 on its surface, which are divided into a groove area 110 and a mounting area 120. The grooves 130 can help arrange the light emitting devices 400 and the light shielding assembly 200 and enable them to be installed at intervals.

[0157] S300 , forming a soldering pad on the substrate located on the mounting area. The soldering pad 500 is used to connect and fix the light emitting device 400 .

[0158] S400: Electrically connect the light emitting device to the substrate via the soldering pads. Electrically connect the light emitting device 400 to the substrate 100 by soldering to ensure that the light emitting device 400 can operate normally and is effectively powered by the substrate 100.

[0159] S500: Insert the shading component between adjacent light-emitting devices so that the bottom surface of the shading component abuts against the bottom of the groove, and at least a part of the shading component is a hard component.

[0160] The shading assembly 200 is inserted between adjacent light emitting devices 400 to provide light shielding and isolation. At least a portion of the shading assembly 200 is a hard component that can effectively block light.

[0161] S600, providing adhesive, and filling the adhesive between the shading component, the light emitting device and the substrate, and forming an adhesive member after the adhesive is cured, and bonding the shading component, the light emitting device and the substrate with the adhesive member to form a display device.

[0162] The preparation method of the display device 10 of the embodiment of the present application realizes the electrical connection between the light-emitting device 400 and the substrate 100, ensuring the normal operation of the light-emitting device 400; plugging and bonding the shading component 200 to help block light and reduce crosstalk; the shading component 200 is partially a hard part, which helps to isolate the light and signals between different light-emitting devices 400; using adhesive for fixing can effectively reduce the risk of crosstalk; the preparation process of the display device 10 is relatively simple, with high production efficiency and low cost; crosstalk is suppressed to improve display effect and quality.

[0163] Reference Figure 21 and Figure 22 As shown, in some possible embodiments, the light emitting device 400 is electrically connected to the substrate 100 via the solder pad 500, and the light shielding assembly 200 is inserted between the adjacent plurality of light emitting devices 400 so that the bottom surface of the light shielding assembly 200 abuts against the groove bottom 131 of the groove 130. At least a portion of the light shielding assembly 200 is a hard component, including:

[0164] S410, electrically connecting the light-emitting unit to the substrate through the pad;

[0165] S420, placing the bottom surface of the first light shielding member in contact with the bottom of the groove;

[0166] Specifically, this installation method helps to isolate the light and signals between the light-emitting devices 400. In addition, by abutting the bottom surface of the first shading member 210 against the bottom 131 of the groove 130, it can effectively block light and prevent light crosstalk, thereby improving the display effect of the display device 10.

[0167] S430, disposing a fluorescent layer on a side of the light-emitting unit away from the substrate to form a light-emitting device;

[0168] The fluorescent layer 420 can absorb the light emitted by the light emitting device 400 , ie, the LED, and re-radiate the light to expand the visual effect and improve the color performance, thereby forming the light emitting device 400 .

[0169] S510 , disposing a second light-shielding member on a side of the first light-shielding member away from the substrate, and making the bottom surface of the second light-shielding member abut against the top surface of the first light-shielding member to form a light-shielding assembly.

[0170] The second light shielding member 220 and the first light shielding member 210 form a light shielding assembly 200 , which can effectively isolate, shield and isolate light, thereby improving the display effect and color performance of the display device 10 .

[0171] Through the above arrangement, the shading assembly 200 can be installed and the light emitting device 400 can be connected, thereby achieving functions such as shading and crosstalk prevention in the LED display device 10, thereby improving the display effect and quality of the display device 10.

[0172] Reference Figure 23 As shown, in some possible embodiments, the light-emitting unit 410 includes a stacked electrode 411, an epitaxial layer 412, and a growth substrate 413. The electrode 411 is located on a side of the epitaxial layer 412 close to the substrate 100, and the growth substrate 413 is located on a side of the epitaxial layer 412 away from the substrate 100.

[0173] After the light emitting unit 410 is electrically connected to the substrate 100 via the pad 500 and before the bottom surface of the first light shielding member 210 is brought into contact with the bottom 131 of the groove 130 , the following steps are further included:

[0174] S415 , removing the growth substrate by laser lift-off or wet etching.

[0175] It is understandable that after the growth substrate 413 is removed, the fluorescent layer 420 and the light emitting unit 410 may be bonded to form a bonding layer 414 .

[0176] Through the above configuration, the structural composition of the LED device can be optimized, the luminous efficiency and device stability can be improved, and the preparation cost can be reduced, thereby improving the performance of the display device 10 and improving the preparation efficiency of the display device 10.

[0177] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

[0178] For ease of explanation, the above description has been made with reference to specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Based on the above teachings, various modifications and variations are possible. The above embodiments are selected and described to better explain the principles and practical applications, so that those skilled in the art can better utilize the embodiments and various different variations of the embodiments suitable for specific use considerations.

Claims

1. A display device, characterized in that: include: The substrate includes a groove area and a mounting area, wherein the groove area and the mounting area are spaced apart from each other, and the groove area is formed with a plurality of grooves arranged in an array; A plurality of light-emitting devices are arranged in an array on the mounting area of ​​the substrate, wherein the light beams emitted by the light-emitting devices include target light and interference light, the target light is located on the light-emitting side of the light-emitting devices, and the interference light is located on the peripheral side of the light-emitting side; a light-shielding component inserted between adjacent light-emitting devices, with a gap between each light-emitting device, the bottom surface of the light-shielding component abutting against the bottom of the groove, and at least a portion of the light-shielding component being a hard component; An adhesive member is filled between the shading component, the light emitting device and the substrate, and is used to bond the shading component, the light emitting device and the substrate; The shading component is used to shield the interfering light emitted by the light emitting device to prevent the interfering light from radiating to the adjacent light emitting device.

2. The display device according to claim 1, wherein The light-emitting device includes a light-emitting unit and a fluorescent layer which are stacked along the thickness direction of the substrate, the light-emitting unit is arranged on the substrate, and the fluorescent layer is arranged on the side of the light-emitting unit away from the substrate; the shading assembly includes a first light-shielding member and a second light-shielding member which are stacked along the thickness direction of the substrate, the bottom surface of the first light-shielding member abuts the bottom of the groove, and the top surface of the first light-shielding member is flush with the top surface of the light-emitting unit; the second light-shielding member is arranged on the side of the first light-shielding member away from the substrate, and the bottom surface of the second light-shielding member abuts the top surface of the first light-shielding member.

3. The display device according to claim 2, wherein: Along the thickness direction of the substrate, the first light shielding member and the second light shielding member each have a large-diameter end and a small-diameter end, and the cross-sectional area of ​​the large-diameter end is larger than the cross-sectional area of ​​the small-diameter end; The small-diameter end of the first light shielding member abuts against the groove bottom of the groove, and one of the large-diameter end and the small-diameter end of the second light shielding member abuts against the large-diameter end of the first light shielding member.

4. The display device according to claim 3, wherein: When the large diameter end of the second light shielding member abuts against the large diameter end of the first light shielding member, The display device is further provided with a reflective member, which is provided on a side surface of the second light shielding member and is used to reflect the interfering light; and / or, the angle between the side surface and the bottom surface of the second light shielding member is greater than or equal to 45°; And / or, the angle between the side surface and the bottom surface of the second light shielding member is less than or equal to 90°.

5. The display device according to any one of claims 1 to 4, characterized in that: The top surface of the light-shielding component is flush with the top surface of the light-emitting device, or the top surface of the light-shielding component is located on a side of the top surface of the light-emitting device away from the substrate; And / or, the shading component is a semiconductor structure or a metal structure; And / or, the shading component is located between a plurality of adjacent light-emitting devices.

6. The display device according to any one of claims 2 to 4, characterized in that: Along the thickness direction of the substrate, The light-emitting unit includes an electrode and an epitaxial layer that are stacked, and the electrode is located on a side of the epitaxial layer close to the substrate; Alternatively, the light emitting unit includes an electrode, an epitaxial layer, and a growth substrate that are stacked, the electrode is located on a side of the epitaxial layer close to the substrate, and the growth substrate is located on a side of the epitaxial layer away from the substrate.

7. A display device, characterized in that: It includes a substrate, a light-shielding component, an adhesive and a plurality of light-emitting devices. The substrate includes a groove area and a mounting area, the groove area and the mounting area are spaced apart, and the groove area is formed with a plurality of grooves arranged in an array; A plurality of light-emitting devices are arranged in an array on the mounting area of ​​the substrate, and the light beams emitted by the light-emitting devices include target light and interference light, the target light is located on the light-emitting side of the light-emitting device, and the interference light is located on the peripheral side of the light-emitting side; The shading component is inserted between adjacent light emitting devices, and there is a gap between each light emitting device. The bottom surface of the shading component abuts against the bottom of the groove, and at least a part of the shading component is a hard part. The adhesive is filled between the shading component, the light emitting device and the substrate, and is used to bond the shading component, the light emitting device and the substrate; The shading component is used to shield the interfering light emitted by the light emitting device to prevent the interfering light from radiating to the adjacent light emitting device.

8. A method for preparing a display device, characterized in that: For forming a display device according to any one of claims 1 to 7, the preparation method comprises: providing a substrate; Etching the substrate to form a plurality of grooves arranged in an array on the substrate to form groove areas and mounting areas that are spaced apart; forming a pad on the substrate located on the mounting area; electrically connecting the light emitting device to the substrate via the solder pad; Inserting a shading component between adjacent light emitting devices so that the bottom surface of the shading component abuts against the bottom of the groove, wherein at least a portion of the shading component is a hard component; An adhesive is provided and filled between the shading component, the light emitting device and the substrate. After the adhesive is cured, an adhesive member is formed. The adhesive member is bonded between the shading component, the light emitting device and the substrate to form the display device.

9. The method for manufacturing a display device according to claim 8, wherein: The light emitting device is electrically connected to the substrate via the solder pad, and the light shielding assembly is inserted between adjacent light emitting devices so that the bottom surface of the light shielding assembly abuts against the bottom of the groove, and at least a portion of the light shielding assembly is a hard part, including: electrically connecting the light emitting unit to the substrate via the solder pad; Placing the bottom surface of the first light shielding member against the bottom of the groove; Disposing a fluorescent layer on a side of the light-emitting unit away from the substrate to form the light-emitting device; The second light shielding member is arranged on a side of the first light shielding member away from the substrate, and the bottom surface of the second light shielding member is abutted against the top surface of the first light shielding member to form the light shielding assembly.

10. The method for manufacturing a display device according to claim 9, wherein: The light emitting unit includes an electrode, an epitaxial layer and a growth substrate that are stacked, the electrode is located on a side of the epitaxial layer close to the substrate, and the growth substrate is located on a side of the epitaxial layer away from the substrate; After the light emitting unit is electrically connected to the substrate through the pad; Before the bottom surface of the first light shielding member is brought into contact with the bottom of the groove, the method further includes: The growth substrate is removed by laser lift-off or wet etching.

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