Manufacturing mold and manufacturing method of photoresist structure

Abstract

The invention discloses a manufacturing mold and a manufacturing method of a photoresist structure, the manufacturing mold comprises a first mold and a second mold, the first mold is provided with a first mold cavity, the second mold is provided with a second mold cavity, and at least one of the first mold cavity and the second mold cavity is provided with a protruding part; the first mold and the second mold are closed, a light absorption cavity is defined by the protruding part, the first mold groove and the second mold groove, and a gap cavity is formed between the protruding part and the groove bottom wall of the second mold groove, or between the protruding part and the groove bottom wall of the first mold groove, or between the protruding part in the first mold groove and the protruding part in the second mold groove; the gap cavities are used for arranging light-transmitting materials to form light-transmitting pieces, and the light-absorbing cavities are used for injection molding of light-absorbing materials to form light-absorbing pieces. The light-transmitting part formed at the gap does not need to be removed in the manufacturing stage, the product manufacturing procedures are reduced, the production cost is further reduced, pollution of particles such as dust to the light-emitting chip can be avoided, and the production yield of the photoresist structure is guaranteed.

Description

Technical Field

[0001] This application relates to the field of photoresist structure technology, specifically to a mold and manufacturing method for a photoresist structure. Background Technology

[0002] Lighting display devices typically have multiple light-emitting devices arranged in a row. When multiple light-emitting devices emit light, light mixing occurs at the edges between adjacent light-emitting devices, affecting the lighting effect. To address this, a photoresist structure is usually placed above the light-emitting devices to block light from the edges of the light-emitting devices.

[0003] The photoresist structure has a hollow light-emitting channel inside, through which the light beam emitted by the light-emitting device is emitted. Photoresist structures are typically formed by molding or injection molding. During the manufacturing process, a thin layer is usually formed within the light-emitting channel. This thin layer blocks the light beam, and to allow light to pass through, it needs to be removed. Dust and other particles generated during this removal process can easily enter the interior of the light-emitting device, contaminating it and ultimately affecting the product's yield. Furthermore, this adds an extra manufacturing step and increases production costs. Summary of the Invention

[0004] This application aims to provide a mold and manufacturing method for a photoresist structure. During the manufacturing stage, it is not necessary to remove the light-transmitting element formed at the gap, which reduces the product manufacturing process and avoids dust and other particles from entering the light-emitting unit and causing pollution to the light-emitting chip, thus ensuring the production yield of the photoresist structure.

[0005] According to a first aspect of this application, this application provides a mold for manufacturing a photoresist structure, including a first mold and a second mold, wherein the first mold is provided with a first mold groove, the second mold is provided with a second mold groove, and at least one of the first mold groove and the second mold groove has a protruding part at the bottom of the groove;

[0006] The first mold and the second mold are joined together, and the protrusion surrounds the first mold groove and the second mold groove to form a light-absorbing cavity. A gap cavity is formed between the protrusion and the bottom wall of the second mold groove, or between the protrusion and the bottom wall of the first mold groove, or between the protrusion in the first mold groove and the protrusion in the second mold groove.

[0007] The gap cavity is used to set the light-transmitting material to form a light-transmitting part, and the light-absorbing cavity is used to inject and mold the light-absorbing material to form a light-absorbing part.

[0008] In one embodiment, along the height direction of the protrusion, the projected area of ​​the end of the protrusion near the gap cavity is less than or equal to the projected area of ​​the end of the protrusion near the bottom wall of the first mold groove or the bottom wall of the second mold groove.

[0009] In an embodiment, a groove body is further included, which is arranged at one end of the protrusion away from the bottom wall of the first mold groove or at one end of the protrusion away from the bottom wall of the second mold groove, which protrudes in a direction perpendicular to the height direction of the protrusion, and which has a recess, which, together with the bottom wall of the second mold groove, or together with the bottom wall of the first mold groove, or together with the recess of the groove body of the protrusion arranged in the first mold groove and the recess of the groove body of the protrusion arranged in the second mold groove, encloses an overflow cavity for arranging a light-transmitting material forming connecting part.

[0010] In an embodiment, the bottom of the recess protrudes towards the bottom wall of the first mold groove, or the bottom of the recess protrudes towards the bottom wall of the second mold groove.

[0011] In an embodiment, the recess is provided with a bonding shape along the side wall perpendicular to the height direction of the protrusion, which is used to form a bonding surface on the connecting part after arranging the light-transmitting material in the cavity of the overflow cavity.

[0012] In an embodiment, the groove body is arranged around one end of the protrusion away from the bottom wall of the first mold groove, or the groove body is arranged around one end of the protrusion away from the bottom wall of the second mold groove.

[0013] In an embodiment, the groove body is detachably connected to one end of the protrusion away from the bottom wall of the first mold groove, or the groove body is detachably connected to one end of the protrusion away from the bottom wall of the second mold groove.

[0014] In an embodiment,

[0015] In the height direction of the protrusion, the area of the protrusion in the second mold groove projecting to the bottom wall of the first mold groove is a first area, and the area of the protrusion in the first mold groove projecting to the bottom wall of the second mold groove is a second area.

[0016] The first area, and / or the second area, and / or the end of the protrusion in the first mold groove towards the second mold groove and the end of the protrusion in the second mold groove towards the first mold groove are provided with a light condensing shape.

[0017] The light condensing shape is used to form a light condensing structure on the light-transmitting part after arranging the light-transmitting material in the gap cavity.

[0018] In an embodiment, the thickness of the gap cavity is 0.005mm-2mm.

[0019] According to a second aspect of the present application, the present application provides a manufacturing method of the light blocking structure, comprising the following steps:

[0020] The first mold and the second mold are combined, the convex part and the first mold groove and the second mold groove form the light absorption cavity, and the gap cavity is formed between the convex part and the bottom wall of the first mold groove, or between the convex part and the bottom wall of the second mold groove, or between the convex part in the first mold groove and the convex part in the second mold groove;

[0021] The light transmission part is formed in the gap cavity by arranging a light transmission material in the gap cavity;

[0022] The light absorption part is formed by injecting a light absorption material into the light absorption cavity.

[0023] According to the manufacturing mold and the manufacturing method of the light blocking structure in the above embodiment, the light transmission part formed in the gap cavity between the first mold and the second mold has a light transmission effect, so that the light transmission part formed in the gap cavity does not need to be removed in the manufacturing stage, the product manufacturing process is reduced, the production cost is further reduced, and the pollution of dust and other particles to the light emitting chip inside the light emitting unit is avoided, and the production yield of the light blocking structure is ensured. In the use process of the light emitting device, the light transmission part can also isolate the light emitting chip from the outside, separate the external dust, dirt and other pollutants from the light emitting chip, and avoid the pollution of the light emitting chip in the use process to affect the service life. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The cross section of the manufacturing mold of the light blocking structure provided by the present application Figure 1 ;

[0025] Figure 2 The exploded view of the manufacturing mold of the light blocking structure in the present application Figure 1

[0026] Figure 3 The cross section of the light blocking structure manufactured by the manufacturing mold of the light blocking structure provided by the present application Figure 1 ;

[0027] Figure 4 The application schematic diagram of the light blocking structure manufactured by the manufacturing mold of the light blocking structure provided by the present application

[0028] Figure 5 The cross section of the manufacturing mold of the light blocking structure provided by the present application Figure 2 ;

[0029] Figure 6 The cross section of the light blocking structure manufactured by the manufacturing mold of the light blocking structure provided by the present application Figure 2 ;

[0030] ​Figure 7 A cross section of a photoresist structure manufacturing mold provided by the present application Figure 3 ;

[0031] Figure 8 A cross section of a photoresist structure manufacturing mold provided by the present application Figure 4 ;

[0032] Figure 9 A cross section of a photoresist structure manufactured by a photoresist structure manufacturing mold provided by the present application Figure 3 ;

[0033] Figure 10 A cross section of a photoresist structure manufacturing mold provided by the present application Figure 5 ;

[0034] Figure 11 A cross section of a photoresist structure manufactured by a photoresist structure manufacturing mold provided by the present application Figure 4 ;

[0035] Figure 12 A cross section of a photoresist structure manufacturing mold provided by the present application Figure 6 ;

[0036] Figure 13 A cross section of a light transmitting member in a photoresist structure manufactured by a photoresist structure manufacturing mold provided by the present application Figure 1 ;

[0037] Figure 14 A cross section of a photoresist structure manufacturing mold provided by the present application Figure 7 ;

[0038] Figure 15 A cross section of a light transmitting member in a photoresist structure manufactured by a photoresist structure manufacturing mold provided by the present application Figure 2 ;

[0039] Figure 16 A cross section of a photoresist structure manufacturing mold provided by the present application Figure 8 ;

[0040] Figure 17 A cross section of a photoresist structure manufacturing mold provided by the present application Figure 9 ;

[0041] Figure 18 A flow chart of a photoresist structure manufacturing method provided by the present application. BRIEF DESCRIPTION OF DRAWINGS

[0042] Mold 110, first mold 111, first mold groove 1110, first area 1111, second mold 112, second mold groove 1120, second area 1121, convex part 1101, light converging shape 11011, light diverging shape 11012, light absorbing cavity 1102, gap cavity 1103, groove body 113, groove 1130, overflow cavity 1131, joint shape 1132;

[0043] Light blocking structure 100, light absorbing ring 101, light absorbing particle 1011, light path channel 102, light inlet 1021, light outlet 1022, light transmitting piece 103, light converging structure 1030, base 1031, light diverging body 1032, connecting part 104, joint surface 1041;

[0044] Light emitting device 1000, illuminating display device 2000, power supply assembly 2001, light emitting unit 200, light emitting chip 201, base 202. DETAILED DESCRIPTION

[0045] The application will be further described in details below with specific embodiments and accompanying drawings. In different embodiments, similar elements are denoted by similar reference numerals. In the following embodiments, many details are described in order to make the application better understood. However, one skilled in the art can easily recognize that some features can be omitted in different cases, or replaced by other elements, materials, methods. In some cases, some operations related to the application are not shown or described in the specification, in order to avoid the core part of the application being overwhelmed by too much description, and it is not necessary to describe these related operations in detail for one skilled in the art according to the description in the specification and general technical knowledge in the art.

[0046] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate way to form various embodiments, and the operation steps involved in each embodiment can also be sequentially adjusted or adjusted in a manner that one skilled in the art can easily see. Therefore, the specification and drawings are only for the purpose of clearly describing one embodiment, and do not mean that the composition and / or order is necessary.

[0047] In this paper, the serial numbers of components, such as "first", "second", etc., are only used to distinguish the described objects, and have no technical meaning. Unless otherwise specified, "connection" and "coupling" in this application include direct and indirect connection (coupling).

[0048] In related technologies, a photoresist structure is placed between two adjacent light-emitting units to block light mixing at the edges between them, thereby improving the lighting effect. Typically, two molds are used to fabricate the photoresist structure. However, because the two molds cannot be completely fitted together when they are closed, a gap is created between their mating surfaces. This causes the light-absorbing or opaque polymer material to form a thin polymer layer within the gap, blocking the light beam from passing through. To allow light to pass through, this thin layer needs to be removed. During the removal process, dust and other particles may enter the interior of the light-emitting unit, contaminating the internal light-emitting chip and ultimately affecting the product's production yield.

[0049] To address the aforementioned issues, this application proposes a mold and manufacturing method for a photoresist structure. The polymer thin layer in the optical path channel of the photoresist structure is set as a light-transmitting component of the light-transmitting structure. While satisfying the light transmission effect, it eliminates the need to remove the polymer thin layer during the manufacturing stage, reducing product manufacturing steps, further lowering production costs, and preventing dust and other particles from entering the light-emitting unit and contaminating the light-emitting chip, thus ensuring the production yield of the photoresist structure.

[0050] See Figure 1 , Figure 2 , Figure 5 , Figure 7 , Figure 8 , Figure 10 , Figure 12 , Figure 14 , Figure 16 and Figure 17 As shown, the mold 110 for fabricating the photoresist structure 100 provided in this embodiment includes a first mold 111 and a second mold 112, as follows: Figure 2 As shown, the first mold 111 is provided with a first mold groove 1110, and the second mold 112 is provided with a second mold groove 1120. At least one of the first mold groove 1110 and the second mold groove 1120 has a protrusion 1101 protruding from its bottom, such as... Figure 1 , Figure 2 , Figure 5 , Figure 7 , Figure 8 , Figure 10 , Figure 12 and Figure 14 As shown, both the bottom of the first mold groove 1110 and the bottom of the second mold groove 1120 are provided with protrusions 1101, such as... Figure 17 As shown, a protrusion 1101 is provided at the bottom of the first mold groove 1110, such as... Figure 16 As shown, a protrusion 1101 is provided at the bottom of the second mold groove 1120.

[0051] In one embodiment, the protrusion 1101 is a solid or hollow cylindrical structure. Of course, the cross-sectional shape of the protrusion 1101 can also be elliptical, rectangular, or other shapes, depending on the actual needs.

[0052] Wherein, the first mold 111 and the second mold 112 can be combined by at least one movement, for example, the first mold 111 as a moving mold, the second mold 112 as a static mold, the first mold 111 moves relative to the second mold 112, specifically, under the action of the linear guide structure, the first mold 111 moves linearly relative to the second mold 112 in the direction towards the second mold 112, to achieve the effect of mold combination. Correspondingly, the first mold 111 moves linearly relative to the second mold 112 in the direction away from the second mold 112 under the action of the linear guide structure, to achieve the effect of mold stripping.

[0053] When the first mold 111 and the second mold 112 are combined, the outer surface of the protruding part 1101 and the cavity wall of the first mold groove 1110 and the cavity wall of the second mold groove 1120 form a light absorption cavity 1102, as shown in Figure 17 When the protruding part 1101 is arranged at the groove bottom of the first mold groove 1110, the gap cavity 1103 is formed between the protruding part 1101 arranged on the groove bottom of the first mold groove 1110 and the groove bottom wall of the second mold groove 1120, as shown in Figure 16 When the protruding part 1101 is arranged at the groove bottom of the second mold groove 1120, the gap cavity 1103 is formed between the protruding part 1101 arranged on the groove bottom of the second mold groove 1120 and the groove bottom wall of the first mold groove 1110, as shown in Figure 1 Figure 2 Figure 5 Figure 7 Figure 8 Figure 10 Figure 12 And Figure 14 When the groove bottom of the first mold groove 1110 and the groove bottom of the second mold groove 1120 are both provided with the protruding part 1101, the gap cavity 1103 is formed between the protruding part 1101 arranged on the groove bottom of the first mold groove 1110 and the protruding part 1101 arranged on the groove bottom of the second mold groove 1120.

[0054] In this embodiment, the gap cavity 1103 is used to arrange a light-transmitting material to form a light-transmitting piece 103, and the light absorption cavity 1102 is used to inject a light absorption material to form a light absorption ring 101, thereby forming a light blocking structure 100. Wherein, the inner cavity of the light absorption ring 101 is formed as a light path channel 102, the light path channel 102 has an entrance 1021 and an exit 1022, a light beam exits from the light path channel 102 along the exit direction of the entrance 1021 to the exit 1022, the light-transmitting piece 103 connects the channel wall of the light path channel 102 and is located between the entrance 1021 and the exit 1022, so that the light absorption ring 101 surrounds the outer periphery of the light-transmitting piece 103.

[0055] ​​​​​​The space occupied by the protrusion 1101 is shaped as the light path channel 102 after the light-absorbing material is injected into the light-absorbing cavity 1102. When the protrusion 1101 is arranged in both the first mold groove 1110 and the second mold groove 1120, the light inlet 1021 of the light path channel 102 is close to the second mold groove 1120, and the light outlet 1022 of the light path channel 102 is close to the first mold groove 1110.

[0056] The light-transmitting member 103 can be formed by injection or spraying, scraping, and then molding. For example, a certain amount of light-transmitting polymer material is sprayed or scraped on the projection area of the end face of the protrusion 1101 arranged in the second mold groove 1120 and projected to the bottom wall of the first mold groove 1110, or the projection area of the end face of the protrusion 1101 arranged in the first mold groove 1110 and projected to the bottom wall of the second mold groove 1120, or the end face of the protrusion 1101 arranged on the bottom of the first mold groove 1110 and the end face of the protrusion 1101 arranged on the bottom of the second mold groove 1120, and then the upper mold 111 and the lower mold 112 are closed and molded, so that the light-transmitting polymer material at least fills the entire gap cavity 1103, and even overflows a small amount outside the gap cavity 1103.

[0057] In other embodiments, the light-transmitting polymer material can also be directly injected into the gap cavity 1103 by injection, and the light-transmitting member 103 is formed after the light-transmitting polymer material is solidified. Then, the light-absorbing particles 1011-containing polymer material is injected into the light-absorbing cavity 1102, and the light-absorbing ring 101 is formed after the light-absorbing particles 1011-containing polymer material is solidified.

[0058] In this embodiment, when the first mold 111 and the second mold 112 are closed, the gap cavity 1103 and the light-absorbing cavity 1102 are in communication with each other. In order to avoid the flow of light-absorbing material to the gap cavity 1103 when the light-absorbing material is injected into the light-absorbing cavity 1102, the light-absorbing material should be injected into the light-absorbing cavity 1102 after the light-transmitting material is arranged in the gap cavity 1103 and the light-transmitting member 103 is formed.

[0059] It should be understood that when the protrusion 1101 is provided only in the first mold groove 1110 of the first mold 111 or only in the second mold groove 1120 of the second mold 112, the gap cavity 1103 is formed near the bottom of the second mold groove 1120 or near the bottom of the first mold groove 1110. In this case, the protrusion 1101 passes almost through the first mold 111 from top to bottom or almost through the second mold 112 from bottom to top until it abuts the gap cavity 1103 near the bottom wall of the second mold groove 1120 of the second mold 112 or near the bottom wall of the first mold groove 1110 of the first mold 111. As a result, the light-transmitting element 103 formed is close to or located near the light inlet 1021 of the light path channel 102, or the light-transmitting element 103 formed is close to or located near the light outlet 1022 of the light path channel 102.

[0060] In one embodiment, along the axial direction of the light-absorbing cavity 1102, the thickness of the gap cavity 1103 is 0.005mm-2mm, and the thickness of the formed light-transmitting element 103 is 0.005mm-2mm. In a preferred embodiment, the thickness is 0.02mm-0.5mm, specifically determined according to the thickness of the gap cavity 1103 when the first mold 111 and the second mold 112 are closed. Of course, the thickness of the light-transmitting element 103 can also be selected from other values, all of which are within the protection scope of this application.

[0061] like Figure 4 As shown, the photoresist structure 100 is applied to the light-emitting unit 200 to form a light-emitting device 1000. A power supply component 2001 supplies power to the light-emitting chip 201 in the light-emitting unit 200 to form a lighting display device 2000. Multiple light-emitting units 200 are mounted in an array on the base 202. The light beams emitted from the light-emitting chips 201 of adjacent light-emitting units 200 can mix, leading to increased stray light and scattering, and further resulting in unclear light spot boundaries. To address this, a photoresist structure 100 is connected to each light-emitting unit 200, with the light inlet 1021 of the photoresist structure 100 facing the light-emitting chip 201 of the light-emitting unit 200. The photoresist structure 100 blocks the light mixing between the light-emitting chips 201 of adjacent light-emitting units 200, and the light beam emitted from each light-emitting chip 201 forms a clearly defined light spot through the optical path channel 102 of the photoresist structure 100.

[0062] After connecting the photoresist structure 100 to the light-emitting unit 200, it should be ensured that the projection area of ​​the light-emitting chip 201 is located within the projection area of ​​the light inlet 1021 along the light-emitting direction, so that the light beam emitted by the light-emitting chip 201 can be emitted through the optical path channel 102 along the direction from the light inlet 1021 to the light outlet 1022.

[0063] It should be noted that, in Figure 4In the shown embodiment, the side walls of the adjacent photoresist structures 100 at the abutting position are independent side walls. In a preferred embodiment, the adjacent photoresist structures 100 share a same side wall at the abutting position, i.e., the photoresist structures 100 corresponding to all the light emitting units 200 can be formed at one time, and in order to save material and reduce the space occupied by the photoresist structures 100, the adjacent photoresist structures 100 share a same side wall at the abutting position. In this way, the structure of the produced light emitting device is more stable, and the product has better reliability as a whole.

[0064] The light absorbing ring 101 is injection molded in the light absorbing cavity 1102 by a light absorbing material, wherein the light absorbing material is preferably a polymer material containing light absorbing particles 1011, the light absorbing particles 1011 should be uniformly distributed, the particle size of the light absorbing particles 1011 is usually 0.1um-500um, and the light absorbing particles 1011 absorb the mixed light between the light emitting chips 201 of the adjacent two light emitting units 200 to achieve the purpose of light shielding. The light transmitting member 103 is formed by a light transmitting material in the gap cavity 1103, and has a certain light transmitting property, wherein the light transmitting material is a light transmitting polymer, which ensures that the light beam can be emitted through the light path channel 102.

[0065] In this application, the light absorption rate of the light absorbing ring 101 is greater than 90%, the polymer material containing light absorbing particles 1011 has good light absorption effect, of course, black or dark material can also be used, which can significantly reduce the reflected light beam or basically not appear the reflected light beam, and greatly reduce the stray light and scattered light. The light transmittance of the light transmitting member 103 is greater than 80%, and the light transmitting material used is usually transparent or translucent material.

[0066] In a preferred embodiment, the light absorption rate of the light absorbing ring 101 is greater than 99%, which achieves the effect of almost complete light absorption to shield the mixed light between the light emitting chips 201 of the adjacent two light emitting units 200, and the light transmittance of the light transmitting member 103 is greater than 90%, which can reduce the light loss.

[0067] The light absorbing particles 1011 can adopt one or more of carbon black, metal particles, graphite and dark rubber, and the light absorbing particles 1011 can absorb the mixed light between the light emitting chips 201 of the adjacent two light emitting units 200 in a light absorbing manner through the surface thereof to achieve the purpose of light shielding. The metal particles are black or dark spherical metal, or can be spherical metal coated with black or dark coating. Since carbon black, graphite and dark rubber usually have better combination with the light transmitting polymer, the light absorbing particles 1011 are more uniformly distributed in the light absorbing ring 101, therefore, the light absorbing particles 1011 preferably adopt one or more of carbon black, graphite and dark rubber.

[0068] The light-transmitting polymer used by the light-transmitting piece 103 is usually one or more of silica gel, silicone resin or epoxy resin. In other embodiments, other rubber materials such as ethylene-propylene rubber or butyl rubber can also be used, as long as the light-transmitting piece 103 can achieve the required light-transmitting rate.

[0069] In this embodiment, the first mold 111 and the second mold 112 are combined to fill the light-transmitting material into the gap cavity 1103 to form the light-transmitting piece 103, and the light-absorbing material is injected into the light-absorbing cavity 1102 to form the light-absorbing ring 101. Since the gap cavity 1103 and the light-absorbing cavity 1102 are in a communication state, the formed light-absorbing ring 101 and the light-transmitting piece 103 are in an integrated structure. After the light-absorbing material is injected to form the light-absorbing ring 101, the first mold 111 and the second mold 112 are separated to be demolded, thereby forming the light-blocking structure 100. In the above manufacturing process, the light-transmitting piece 103 is formed by filling the light-transmitting material into the gap between the first mold 111 and the second mold 112 when they are combined. Compared with the manufacturing method using non-light-transmitting material in the related art, the light-transmitting piece 103 formed in the gap cavity 1103 between the first mold 111 and the second mold 112 has a light-transmitting effect. Therefore, the light-transmitting piece 103 formed in the gap does not need to be removed during the manufacturing stage, which reduces the product manufacturing process, further reduces the production cost, and also avoids the pollution of the light-emitting chip 201 caused by the particles such as dust entering the inside of the light-emitting unit 200, thereby ensuring the production yield of the light-blocking structure 100. In the use process of the light-emitting device 1000, the light-transmitting piece 103 can also isolate the light-emitting chip 201 from the outside, separate the pollutants such as dust and dirt from the light-emitting chip 201, and avoid the pollution of the light-emitting chip 201 during the use process to affect the service life.

[0070] Referring to FIGS. 1 and 2, Figure 5 and Figure 7 As shown in FIGS. 1 and 2, along the height direction of the protruding part 1102, the projection area of the protruding part 1102 at the end close to the gap cavity 1103 in the first mold groove 1110 is smaller than the projection area of the protruding part 1102 at the end close to the bottom wall of the first mold groove 1110, and the projection area of the protruding part 1102 at the end close to the gap cavity 1103 in the second mold groove 1120 is smaller than the projection area of the protruding part 1102 at the end close to the bottom wall of the second mold groove 1120, so that the projection area of the light-absorbing cavity 1102 at the end close to the bottom wall of the first mold groove 1110 is greater than the projection area of the gap cavity 1103, and the projection area of the light-absorbing cavity 1102 at the end close to the bottom wall of the second mold groove 1120 is greater than the projection area of the gap cavity 1103. Thus, the radial dimension of the formed light-absorbing cavity 1102 gradually decreases from the end close to the bottom wall of the first mold groove 1110 to the gap cavity 1103, and the radial dimension of the light-absorbing cavity 1102 gradually decreases from the end close to the bottom wall of the second mold groove 1120 to the gap cavity 1103. Referring to FIGS. 1 and 2,Figure 6 As shown, in the formed light blocking structure 100, along the light emitting direction, the projection area of the light inlet 1021 is greater than that of the light transmission part 103, the projection area of the light outlet 1022 is greater than that of the light transmission part 103, the radial dimension of the light path channel 102 gradually decreases (contracted or tapered) from the light inlet 1021 to the light transmission part 103, and the radial dimension of the light path channel 102 gradually increases (gradually expanded or trumpet-shaped) from the light transmission part 103 to the light outlet 1022, forming a light path channel 102 with a tapered shape at both ends. Among them, the projection area of the light inlet 1021 is greater than that of the light transmission part 103, which can ensure that the light beam emitted by the light emitting chip 201 has more excellent cutoff performance, and the projection area of the light outlet 1022 is greater than that of the light transmission part 103, which makes the light spot formed by the light emitted from the light path channel 102 have a larger area, and at the same time, the distance between the edges of the light spots generated by adjacent light emitting units 200 is reduced.

[0071] Among them, Figure 5 And Figure 7 As shown, the inner wall of the light absorption cavity 1102 is in a tapered shape, and when the light transmission polymer material is arranged in the gap cavity 1103, a part of the light transmission polymer material will overflow from the gap cavity 1103 and adhere to the inner wall of the light absorption cavity 1102 near the gap cavity 1103, and after solidification, a connecting part 104 (as shown in Figure 9 As shown, the connecting part 104 is integrally formed with the light transmission part 103. And the connecting part 104 extends into the light absorption cavity 1102 after injection molding. In this way, after the polymer material containing the light absorption particles 1011 is injected into the light absorption cavity 1102, the connecting part 104 can be embedded in the solidified light absorption ring 101, thereby improving the bonding strength between the light transmission part 103 and the light absorption ring 101.

[0072] As shown, Figure 9 As shown, due to the thin thickness of the light transmission part 103, the connecting part 104 is connected to the light absorption ring 101 in a way of embedding into the inside of the light absorption ring 101 from the channel wall of the light path channel 102, which can improve the bonding strength between the light transmission part 103 and the light absorption ring 101.

[0073] As shown, Figure 8 As shown, Figure 8Another embodiment of the shaped connecting part 104 is shown, specifically, the manufacturing mold 110 of the light blocking structure 100 provided by the embodiment further comprises a groove body 113, which is arranged at one end of the protruding part 1102 in the first mold groove 1110 away from the groove bottom wall of the first mold groove 1110, or the groove body 113 is arranged at one end of the protruding part 1101 in the second mold groove 1120 away from the groove bottom wall of the second mold groove 1120, and the groove body 113 protrudes in a direction perpendicular to the height direction of the protruding part 1101. The groove body 113 has a groove 1130. When the protruding part 1101 is arranged only in the first mold groove 1110, the groove 1130 of the groove body 113 of the protruding part 1101 in the first mold groove 1110 and the groove bottom wall of the second mold groove 1120 form an overflow cavity 1131 when the first mold 111 and the second mold 112 are combined. When the protruding part 1101 is arranged only in the second mold groove 1120, the groove 1130 of the groove body 113 of the protruding part 1101 in the second mold groove 1120 and the groove bottom wall of the first mold groove 1110 form an overflow cavity 1131 when the first mold 111 and the second mold 112 are combined. As shown in Figure 8 When the protruding part 1101 is arranged in both the first mold groove 1110 and the second mold groove 1120, the groove 1130 of the groove body 113 of the protruding part 1101 arranged in the first mold groove 1110 and the groove 1130 of the groove body 113 of the protruding part 1101 arranged in the second mold groove 1110 together form an overflow cavity 1131. The overflow cavity 1131 is used to arrange the light-transmitting material shaped connecting part 104. Of course, the overflow cavity 1131 can also be arranged with other materials, and preferably accommodates the light-transmitting polymer material overflowed from the gap cavity 1103.

[0074] As shown in Figure 8 The groove bottom of the groove 1130 of the groove body 113 of the protruding part 1101 arranged in the first mold groove 1110 protrudes towards the direction of the groove bottom wall of the first mold groove 1110, and the groove bottom of the groove 1130 of the groove body 113 of the protruding part 1101 arranged in the second mold groove 1120 protrudes towards the direction of the groove bottom wall of the second mold groove 1120, so that the thickness of the connecting part 104 is greater than the thickness of the light-transmitting part 103. In combination with Figure 9 As shown in

[0075] Of course, in other embodiments, the connecting part 104 can only protrude in the direction of the light inlet 1021 along the axial direction of the light path channel 102, or the connecting part 104 can only protrude in the direction of the light outlet 1022 along the axial direction of the light path channel 102, both of which can improve the bonding strength with the light-absorbing ring 101.

[0076] Continuing to refer to Figure 8As shown, the groove 113 has a connecting shape 1132 on its sidewall along the height direction perpendicular to the protrusion 1101. The connecting shape 1132 is used to form a connecting surface 1041 on the connecting part 104 after the overflow cavity 1130 is provided with a light-transmitting material on its sidewall. Figure 9 As shown, the mating surface 1041 is formed on the side of the connecting portion 104 away from the light-transmitting element 103. The light-transmitting element 103 is usually circular, but it can also be elliptical, rectangular, or other shapes, depending on the cross-sectional shape of the light path channel 102. Since the light-transmitting element 103 has a certain thickness, its outer periphery is a surrounding surface, and the area of ​​the mating surface 1041 is usually larger than the area of ​​the outer periphery of the light-transmitting element 103. This increases the contact area between the mating surface 1041 and the light-absorbing element 101, further increasing the bonding strength. For example, the mating shape 1132 can also be a shape containing one or more concave and convex surfaces, thereby making the mating surface 1041 a shape containing one or more concave and convex surfaces to increase the contact area with the light-absorbing element 101, thus forming one or more interlocking relationships between the light-transmitting element 103 and the light-absorbing element 101.

[0077] In this application, the groove 113 disposed in the first mold groove 1110 is disposed around one end of the protrusion 1101 away from the bottom wall of the first mold groove 1110, and the groove 113 disposed in the second mold groove 1120 is disposed around one end of the protrusion 1101 away from the bottom wall of the second mold groove 1120. The formed connecting part 104 is disposed around the outer periphery of the light-transmitting member 103, forming a continuous ring structure, which further ensures that the connection strength between the light-transmitting member 103 and the light-absorbing ring 101 is enhanced through the connecting part 104.

[0078] In this application, since the groove 113 extends into the light absorption cavity 1102, the groove 113 should be removed before the light absorption material is injected into the light absorption cavity 1102. Thus, the injected light absorption material fills the area occupied by the groove 113. As a result, the formed connecting part 104 can be embedded from the channel wall of the light path channel 102 into the interior of the light absorption ring 101 to form an integral structure, and the structural connection is more stable.

[0079] It should be understood that the groove 113 is detachably connected to the end of the protrusion 1101 in the first mold groove 1110 that is away from the bottom wall of the first mold groove 1110. Similarly, the groove 113 is detachably connected to the end of the protrusion 1101 in the second mold groove 1120 that is away from the bottom wall of the second mold groove 1120. For example, each groove 113 is configured as two half-groove structures, which are fixed to the end of the bottom wall of the corresponding mold groove of the protrusion 1101 by a clamp to achieve a detachable connection.

[0080] In this embodiment, the inner cavity of the shaped light-absorbing ring 101 is the light path channel 102, and thus the axial direction of the light path channel 102 is coaxial with the light-out direction of the light path channel 102. Referring to Figure 1 , Figure 2 , Figure 8 , Figure 12 , Figure 14 , Figure 16 and Figure 17 , along the axial direction of the light path channel 102, the projection area of the protruding part 1101 arranged in the first mold groove 1110 near one end of the groove bottom wall of the first mold groove 1110 is equal to the projection area of the gap cavity 1103, the projection area of the protruding part 1101 arranged in the second mold groove 1120 near one end of the groove bottom wall of the second mold groove 1120 is equal to the projection area of the gap cavity 1103, the projection area of the light-absorbing cavity 1102 near one end of the groove bottom wall of the first mold groove 1110 is equal to the projection area of the gap cavity 1103, the projection area of the light-absorbing cavity 1102 near one end of the groove bottom wall of the second mold groove 1120 is equal to the projection area of the gap cavity 1103, the radial dimension of the shaped light-absorbing cavity 1102 is equal from the direction near one end of the groove bottom wall of the first mold groove 1110 to the gap cavity 1103, and the radial dimension of the light-absorbing cavity 1102 is also equal from the direction near one end of the groove bottom wall of the second mold groove 1120 to the gap cavity 1103. Referring to Figure 3 and Figure 4 , the shaped light-absorbing ring 101 is a straight cylinder. In the light-out direction of the light path channel 102, the projection area of the light-in port 1021 is equal to the projection area of the light-transmitting part 103, the projection area of the light-out port 1022 is equal to the projection area of the light-transmitting part 103, and the radial dimension of the light path channel 102 is equal from the direction of the light-in port 1021 to the light-out port 1022.

[0081] Referring to Figure 10 , along the axial direction of the light path channel 102, the projection area of the protruding part 1101 arranged in the first mold groove 1110 near one end of the groove bottom wall of the first mold groove 1110 is equal to the projection area of the gap cavity 1103, the projection area of the protruding part 1101 arranged in the second mold groove 1120 near one end of the groove bottom wall of the second mold groove 1120 is equal to the projection area of the gap cavity 1103, and thus the radial dimension of the shaped light-absorbing cavity 1102 is equal from the direction near one end of the groove bottom wall of the first mold groove 1110 to the gap cavity 1103, and the radial dimension of the light-absorbing cavity 1102 gradually decreases from the direction near one end of the groove bottom wall of the second mold groove 1120 to the gap cavity 1103. Referring to Figure 11As shown, in the formed light-blocking structure 100, in the light-out direction along the light path channel 102, the projection area of the light-in port 1021 is greater than the projection area of the light-transmitting piece 103, and the projection area of the light-out port 1022 is equal to the projection area of the light-transmitting piece 103, so that the light path channel 102 forms a taper shape with gradually increasing radial dimension from the light-in port 1021 to the light-transmitting piece 103, and forms a straight cylinder shape with equal radial dimension from the light-transmitting piece 103 to the light-out port 1022, the light-blocking effect of the light-blocking structure 100 is better, the light spot of the light beam generated by the light-emitting device 1000 with the light-blocking structure 100 has better cutoff, less stray light, and a cleaner light spot, and the cutoff of the light spot is more excellent.

[0082] In other embodiments, along the axial direction of the light path channel 102, the projection area of the protruding part 1101 arranged in the first mold groove 1110 near one end of the groove bottom wall of the first mold groove 1110 is greater than the projection area of the gap cavity 1103, and the projection area of the protruding part 1101 arranged in the second mold groove 1120 near one end of the groove bottom wall of the second mold groove 1120 can also be equal to the projection area of the gap cavity 1103, so that the radial dimension of the formed light-absorbing cavity 1102 gradually decreases from the one end near the groove bottom wall of the first mold groove 1110 to the gap cavity 1103, and the radial dimension of the light-absorbing cavity 1102 is equal from the one end near the groove bottom wall of the second mold groove 1120 to the gap cavity 1103.

[0083] Referring to Figure 16 As shown, along the axial direction of the light path channel 102, when the protruding part 1101 is arranged only on the groove bottom of the second mold groove 1120, the area of the protruding part 1101 in the second mold groove 1120 projected to the groove bottom wall of the first mold groove 1110 is a first area 1111 formed on the groove bottom wall of the first mold groove 1110. Referring to Figure 17 As shown, when the protruding part 1101 is arranged only on the groove bottom of the first mold groove 1110, the area of the protruding part 1101 in the first mold groove 1110 projected to the groove bottom wall of the second mold groove 1120 is a second area 1121 formed on the groove bottom wall of the second mold groove 1120. Of course, as Figure 1 、 Figure 2 、 Figure 5 、 Figure 7 、 Figure 8 and Figure 10 As shown, when the protruding part 1101 is arranged on the groove bottom of the first mold groove 1110 and the groove bottom of the second mold groove 1120 at the same time, the first area 1111 corresponds to the end face of the protruding part 1101 arranged in the first mold groove 1110 away from the end thereof, and the second area 1121 corresponds to the end face of the protruding part 1101 arranged in the second mold groove 1120 away from the end thereof.

[0084] In this embodiment, asFigure 16 As shown, when the protruding part 1101 is arranged in the second mold groove 1120 only, the light-converging shape 11011 is arranged in the first region 1111, as shown in Figure 17 As shown, when the protruding part 1101 is arranged in the first mold groove 1110 only, the light-converging shape 11011 is arranged in the second region 1121, as shown in Figure 1 、 Figure 2 、 Figure 5 、 Figure 7 、 Figure 8 and Figure 10 As shown, when the protruding part 1101 is arranged in the first mold groove 1110 and the second mold groove 1120 simultaneously, the protruding part 1101 in the first mold groove 1110 is arranged with the light-converging shape 11011 towards the end of the second mold groove 1120, and the protruding part 1101 in the second mold groove 1120 is arranged with the light-converging shape 11011 towards the end of the first mold groove 1110, as shown in Figure 3 、 Figure 6 、 Figure 9 and Figure 11 The light-converging shape 11011 is used to form the light-converging structure 1030 on the light-transmitting piece 103 after the light-transmitting material is arranged in the gap cavity 1103. In other words, the light-converging shape 11011 can be arranged on only one side of the light-transmitting piece 103 facing the light inlet 1021, or can be arranged on only one side of the light-transmitting piece 103 facing the light outlet 1022, or can be arranged on both sides of the light-transmitting piece 103 facing the light inlet 1021 and the light outlet 1022 simultaneously.

[0085] The light-converging structure 1030 can improve the light-converging effect of the light beam after the light path channel 102 is emitted. The light beam has a better light-converging effect after passing through the light-transmitting piece 103 arranged with the light-converging structure 1030. The light-converging shape 11011 can adopt a convex shape with a smooth surface, so that the light-converging structure 1030 is formed as a convex surface on the light-transmitting piece 103.

[0086] Referring to Figure 13 and Figure 15 As shown, Figure 13 and Figure 15 Other structural forms of the light-transmitting piece 103 are shown, which can diverge the light beam to achieve the effect of uniform light. Specifically, the light-transmitting piece 103 includes a base body 1031 and a diverging body 1032, the base body 1031 is connected with the diverging body 1032, and the base body 1031 and the diverging body 1032 can be integrally formed. The diverging body 1032 can achieve the effect of diverging the light beam passing through the light-transmitting piece 103, and the light beam can have more divergence angles, so that the light beam emitted from the light path channel 102 has a better uniform light effect.

[0087] For this purpose, referring to Figure 12 and Figure 14As shown, the protruding part 1101 of the first mold groove 1110 is provided with a diverging shape 11012 at the end surface thereof facing the second mold groove 1120, which is used to form a diverging body 1032 on the light-transmitting piece 103 after the light-transmitting material is arranged in the gap cavity 1103 (as shown in Figure 13 and Figure 15 As shown, the protruding part 1101 of the first mold groove 1110 is provided with a diverging shape 11012 at the end surface thereof facing the second mold groove 1120, which is used to form a diverging body 1032 on the light-transmitting piece 103 after the light-transmitting material is arranged in the gap cavity 1103 (as shown in

[0088] As shown, the protruding part 1101 of the first mold groove 1110 is provided with a diverging shape 11012 at the end surface thereof facing the second mold groove 1120, which is used to form a diverging body 1032 on the light-transmitting piece 103 after the light-transmitting material is arranged in the gap cavity 1103 (as shown in Figure 18 As shown, the protruding part 1101 of the first mold groove 1110 is provided with a diverging shape 11012 at the end surface thereof facing the second mold groove 1120, which is used to form a diverging body 1032 on the light-transmitting piece 103 after the light-transmitting material is arranged in the gap cavity 1103 (as shown in

[0089] The mold closing step S100 closes the first mold 111 and the second mold 112, and the outer surface of the protruding part 1102 is surrounded by the cavity wall of the first mold groove 1110 and the cavity wall of the second mold groove 1120 to form the light-absorbing cavity 1102. When the protruding part 1101 is arranged at the groove bottom of the first mold groove 1110, the gap cavity 1103 is formed between the protruding part 1101 arranged at the groove bottom of the first mold groove 1110 and the groove bottom wall of the second mold groove 1120. When the protruding part 1101 is arranged at the groove bottom of the second mold groove 1120, the gap cavity 1103 is formed between the protruding part 1101 arranged at the groove bottom of the second mold groove 1120 and the groove bottom wall of the first mold groove 1110. When the groove bottom of the first mold groove 1110 and the groove bottom of the second mold groove 1120 are both provided with the protruding part 1101, the gap cavity 1103 is formed between the protruding part 1101 arranged at the groove bottom of the first mold groove 1110 and the protruding part 1101 arranged at the groove bottom of the second mold groove 1120.

[0090] The first forming step S200 arranges the light-transmitting material in the gap cavity 1103 to form the light-transmitting piece 103, and the formed light-transmitting piece 103 has a light-transmitting effect.

[0091] Specifically, the light-transmitting member 103 can be made by injection or spraying, scraping, and then molding, for example, by spraying or scraping a certain amount of light-transmitting polymer material on the projection area of the convex part 1101 in the second mold groove 1120 projected to the groove bottom wall of the first mold groove 1110, or on the projection area of the convex part 1101 in the first mold groove 1110 projected to the groove bottom wall of the second mold groove 1120, or on the end surface of the convex part 1101 provided on the groove bottom of the first mold groove 1110 and the end surface of the convex part 1101 provided on the groove bottom of the second mold groove 1120, and then molding the upper mold 111 and the lower mold 112 to make the light-transmitting polymer material at least fill the entire gap cavity 1103, and even overflow a small amount outside the gap cavity 1103.

[0092] In other embodiments, the light-transmitting member 103 can also be made by directly injecting the light-transmitting polymer material into the gap cavity 1103 by injection, and then forming the light-transmitting member 103 after the light-transmitting polymer material is solidified.

[0093] In the second molding step S300, the light-absorbing material is injected into the light-absorbing cavity 1102 to mold the light-absorbing ring 101.

[0094] After the first mold 111 and the second mold 112 are separated and demolded, the light-blocking structure 100 can be obtained.

[0095] In the present application, after the first mold 111 and the second mold 112 are combined, the gap cavity 1103 and the light-absorbing cavity 1102 are in communication with each other, and in order to avoid the flow of the light-absorbing material to the gap cavity 1103 when the light-absorbing material is injected into the light-absorbing cavity 1102, the light-absorbing material should be injected into the light-absorbing cavity 1102 after the light-transmitting material is provided in the gap cavity 1103 and the light-transmitting member 103 is molded.

[0096] In an embodiment of the present application, the manufacturing method further comprises the following steps: an assembling step, the groove body 113 is installed at one end of the convex part 1102 away from the groove bottom wall of the first mold groove 1110 in the first mold groove 1110, or at one end of the convex part 1101 away from the groove bottom wall of the second mold groove 1120 in the second mold groove 1120, and the groove body 113 has a groove 1130. When only the convex part 1101 is provided in the first mold groove 1110, the groove 1130 of the groove body 113 of the convex part 1101 in the first mold groove 1110 and the groove bottom wall of the second mold groove 1120 form an overflow cavity 1131 when the first mold 111 and the second mold 112 are combined. When only the convex part 1101 is provided in the second mold groove 1120, the groove 1130 of the groove body 113 of the convex part 1101 in the second mold groove 1120 and the groove bottom wall of the first mold groove 1110 form an overflow cavity 1131 when the first mold 111 and the second mold 112 are combined. As shown in FIG. 1, the convex part 1101 is provided in the first mold groove 1110, and the groove body 113 of the convex part 1101 in the first mold groove 1110 and the groove bottom wall of the second mold groove 1120 form an overflow cavity 1131 when the first mold 111 and the second mold 112 are combined. Figure 8As shown, when the protruding part 1101 is arranged in the first mold groove 1110 and the second mold groove 1120 at the same time, the groove 1130 of the slot body 113 of the protruding part 1101 arranged in the first mold groove 1110 and the groove 1130 of the slot body 113 of the protruding part 1101 arranged in the second mold groove 1110 jointly enclose the overflow cavity 1131. The overflow cavity 1131 is used to arrange the light-transmitting material forming connecting part 104. Of course, the overflow cavity 1131 can also be arranged with other materials, and preferably accommodates the light-transmitting material overflowed from the gap cavity 1103.

[0097] Due to the thin thickness of the light-transmitting part 103, the connecting part 104 is connected with the light-absorbing ring 101 in a manner of being embedded inside the light-absorbing ring 101 from the channel wall of the light path channel 102, which can improve the bonding strength of the light-transmitting part 103 and the light-absorbing ring 101.

[0098] In the present application, since the slot body 113 extends into the light-absorbing cavity 1102, in order to facilitate injection molding of the light-absorbing material in the light-absorbing cavity 1102, the manufacturing method further includes a dismounting step, in which the slot body 113 is dismounted before the light-absorbing material is injected into the light-absorbing cavity 1102, so that the injected light-absorbing material fills the area occupied by the slot body 113. Thus, the formed connecting part 104 can be embedded inside the light-absorbing ring 101 from the channel wall of the light path channel 102, forming an integrated structure, and the structural connection is more stable.

[0099] In summary, in the manufacturing mold and manufacturing method of the light-blocking structure provided by the present embodiment, the light-transmitting part formed in the gap cavity between the first mold and the second mold has a light-transmitting effect, so that the light-transmitting part formed at the gap does not need to be removed during the manufacturing stage, reducing the product manufacturing process and further reducing the production cost. In addition, the light-transmitting part can also avoid the pollution of dust and other particles to the light-emitting chip inside the light-emitting unit, ensuring the production yield of the light-blocking structure. In the use process of the light-emitting device, the light-transmitting part can also isolate the light-emitting chip from the outside, separating the external dust, dirt and other pollutants from the light-emitting chip, and avoiding the pollution of the light-emitting chip during use to affect the service life.

[0100] The above is a further detailed description of the present application in combination with specific embodiments, and the specific implementation of the present application should not be limited to these descriptions. For ordinary skilled persons in the technical field to which the present application belongs, some simple deductions or substitutions can be made without departing from the inventive concept of the present application.

Claims

1. A mold for manufacturing a photoresist structure, characterized in that, It includes a first mold and a second mold, the first mold is provided with a first mold groove, the second mold is provided with a second mold groove, and at least one of the first mold groove and the second mold groove has a protruding part at the bottom of the groove; The first mold and the second mold are joined together, and the protrusion surrounds the first mold groove and the second mold groove to form a light-absorbing cavity. A gap cavity is formed between the protrusion and the bottom wall of the second mold groove, or between the protrusion and the bottom wall of the first mold groove, or between the protrusion in the first mold groove and the protrusion in the second mold groove. The gap cavity is used to set the light-transmitting material to form a light-transmitting part, and the light-absorbing cavity is used to inject and mold the light-absorbing material to form a light-absorbing part.

2. The mold for fabricating the photoresist structure as described in claim 1, characterized in that, Along the height direction of the protrusion, the projected area of ​​the end of the protrusion near the gap cavity is less than or equal to the projected area of ​​the end of the protrusion near the bottom wall of the first mold groove or the bottom wall of the second mold groove.

3. The mold for fabricating the photoresist structure as described in claim 1, characterized in that, It also includes a groove, which is disposed at one end of the protrusion away from the bottom wall of the first mold groove or at one end of the protrusion away from the bottom wall of the second mold groove. The groove protrudes in a direction perpendicular to the height direction of the protrusion. The groove has a recess, which forms an overflow cavity with the bottom wall of the second mold groove, or with the bottom wall of the first mold groove, or with the recess of the groove of the protrusion in the first mold groove and the recess of the groove of the protrusion in the second mold groove. The overflow cavity is used to provide a light-transmitting material forming connection part.

4. The mold for manufacturing the photoresist structure as described in claim 3, characterized in that, The bottom of the groove protrudes towards the bottom wall of the first mold groove, or the bottom of the groove protrudes towards the bottom wall of the second mold groove.

5. The mold for fabricating the photoresist structure as described in claim 4, characterized in that, The groove has a connecting shape along the groove sidewall perpendicular to the height direction of the protrusion. The connecting shape is used to form a connecting surface on the connecting part after the cavity sidewall of the overflow cavity is provided with light-transmitting material.

6. The mold for manufacturing the photoresist structure as described in any one of claims 3-5, characterized in that, The groove is arranged around one end of the protrusion away from the bottom wall of the first mold groove, or the groove is arranged around one end of the protrusion away from the bottom wall of the second mold groove.

7. The mold for fabricating the photoresist structure as described in claim 6, characterized in that, The groove is detachably connected to one end of the protrusion away from the bottom wall of the first mold groove, or the groove is detachably connected to one end of the protrusion away from the bottom wall of the second mold groove.

8. The mold for fabricating the photoresist structure as described in claim 1, characterized in that, Along the height direction of the protrusion, the area in the second mold groove where the protrusion is projected onto the bottom wall of the first mold groove is the first region, and the area in the first mold groove where the protrusion is projected onto the bottom wall of the second mold groove is the second region. The first region, and / or the second region, and / or the end of the protrusion in the first mold groove facing the second mold groove and the end of the protrusion in the second mold groove facing the first mold groove are provided with a light-focusing shape; The light-focusing shape is used to form a light-focusing structure on the light-transmitting element after the light-transmitting material is placed in the gap cavity.

9. The mold for fabricating the photoresist structure as described in claim 1, characterized in that, The thickness of the gap cavity is 0.005mm-2mm.

10. A method for fabricating a photoresist structure based on any one of claims 1-9, characterized in that, Includes the following steps: The first mold and the second mold are joined together, and the protrusion surrounds the first mold groove and the second mold groove to form the light-absorbing cavity. The gap cavity is formed between the protrusion and the bottom wall of the first mold groove, or between the protrusion and the bottom wall of the second mold groove, or between the protrusion in the first mold groove and the protrusion in the second mold groove. A light-transmitting material is disposed in the gap cavity to form the light-transmitting element; Light-absorbing material is injected into the light-absorbing cavity to form the light-absorbing component.

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