Mechanoluminescent layer and luminescent glass

Abstract

The application discloses a force-induced luminescence layer and luminescent glass, which comprise a glass substrate, an elastic luminescence layer and a reinforcing part; the elastic luminescence layer is coated outside the reinforcing part, the reinforcing part is used for increasing the shearing strain of the elastic luminescence layer when the elastic luminescence layer is deformed; and the elastic luminescence layer is provided with the reinforcing part on any one side or both sides of the elastic luminescence layer. The application increases the strain of the elastic luminescence layer by arranging the reinforcing part, and increases the luminescent intensity.

Description

Technical Field

[0001] This invention relates to the field of glass production technology, and in particular to a mechanoluminescent layer and luminescent glass. Background Technology

[0002] Mechanoluminescence, a novel light-emitting technology, allows for controlled emission by drivers and passengers. It is a phenomenon where light is emitted when a material is subjected to mechanical forces (friction, pressure, impact, breakage, and ultrasound, etc.). In most cases, the luminescent material undergoes deformation or breakage. Currently, common mechanoluminescent functional layers mainly consist of a luminescent material and a polymer substrate. The luminescent material emits intense light only when subjected to significant stress and deformation.

[0003] As for mechanoluminescent glass, when vertical pressure is applied to the mechanoluminescent functional layer, the shear strain of the functional layer is very small, and the luminescence is not obvious, resulting in poor luminescence effect of mechanoluminescent glass. Summary of the Invention

[0004] The technical problem to be solved by the present invention includes: providing a mechanoluminescent layer and a light-emitting glass to overcome the problems such as poor light emission effect of existing mechanoluminescent glass.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention includes:

[0006] A mechanoluminescent layer includes an elastic light-emitting layer and a reinforcing portion;

[0007] The elastic light-emitting layer covers the reinforcing portion, and the reinforcing portion is used to increase the shear strain of the elastic light-emitting layer when the elastic light-emitting layer is deformed.

[0008] The enhancement portion is provided on any one or both sides of the elastic light-emitting layer.

[0009] To solve the above-mentioned technical problems, another technical solution adopted by the present invention includes:

[0010] A light-emitting glass includes a glass substrate and a mechanoluminescent layer as described above;

[0011] The mechanoluminescent layer is connected to the glass substrate.

[0012] Compared with the prior art, the beneficial effects of the present invention include at least the following: due to the provision of the reinforcement, the shear strain near the reinforcement increases after the elastic light-emitting layer is subjected to force, and when the elastic light-emitting layer is reset after the external force on it is removed, the strain capacity between it and the reinforcement is also enhanced. Compared with the existing force-luminescent glass, the shear strain of the elastic light-emitting layer after being compressed is increased, thereby increasing the luminous intensity and improving the luminous effect. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view of a light-emitting glass according to Embodiment 1 of the present invention;

[0014] Figure 2 This is a cross-sectional view of a light-emitting glass according to Embodiment 2 of the present invention;

[0015] Figure 3 This is a cross-sectional view of a light-emitting glass according to Embodiment 3 of the present invention. Figure 1 ;

[0016] Figure 4 This is a cross-sectional view of a light-emitting glass according to Embodiment 3 of the present invention. Figure 2 ;

[0017] Figure 5 This is a top view of a light-emitting glass according to Embodiment 4 of the present invention;

[0018] Figure 6 This is a schematic diagram of the surface stress of the reinforcement part after the elastic light-emitting layer is compressed in Embodiment 5 of the present invention;

[0019] Figure 7 This is a cross-sectional view of the reinforcing part and the substrate or glass substrate in Embodiment 6 of the present invention;

[0020] Figure 8 This is a schematic diagram of the structure of the elastic light-emitting layer and the reinforcement part when the thickness of the elastic light-emitting layer is too small in this invention;

[0021] Figure 9 This is a schematic diagram of the structure of the elastic light-emitting layer and the enhancement part when the thickness of the elastic light-emitting layer is too large in this invention.

[0022] Label Explanation:

[0023] 1. Glass substrate; 2. Elastic light-emitting layer; 3. Reinforcing part; 4. Substrate; 5. Protective layer. Detailed Implementation

[0024] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0025] Currently, common mechanoluminescent functional layers are mainly composed of luminescent materials and polymer substrates. The luminescent materials can only emit light with greater intensity when they are stretched and undergo large deformation.

[0026] For mechanoluminescent glass, when vertical pressure is applied to the mechanoluminescent functional layer, the shear strain of the functional layer is very small, resulting in very weak luminescence and poor light emission. Therefore, researchers attempted to add rigid inorganic particles to the mechanoluminescent functional layer to increase the friction between the rigid inorganic particles and the mechanoluminescent functional layer, thereby improving the luminescence intensity. However, these rigid inorganic particles are dispersed when added to the mechanoluminescent functional layer. Therefore, during the fabrication of the mechanoluminescent functional layer, the rigid inorganic particles tend to settle and aggregate, preventing them from fully rubbing against the layer during deformation. Consequently, the luminescence effect of the resulting mechanoluminescent functional layer is not significantly enhanced.

[0027] Based on this, the present invention provides a luminescent glass, please refer to... Figures 1-7 Specifically, it includes a glass substrate 1 and a mechanoluminescent layer. The mechanoluminescent layer includes an elastic light-emitting layer 2 and a reinforcing portion 3. The elastic light-emitting layer 2 covers the reinforcing portion 3, and the reinforcing portion 3 is used to increase the shear strain of the elastic light-emitting layer 2 when it deforms. The reinforcing portion 3 is provided on any one or both sides of the elastic light-emitting layer 2. Here, the glass substrate 1 refers to a sheet material containing inorganic glass and organic polymers such as PC and PMMA.

[0028] It is understandable that, due to the reinforcement 3, the shear strain of the elastic light-emitting layer 2 increases when it deforms under stress, and the strain capacity between the elastic light-emitting layer 2 and the reinforcement 3 is also enhanced when the elastic light-emitting layer 2 returns to its original position after the external force is removed. Compared with existing mechanoluminescent glass, the shear strain of the elastic light-emitting layer 2 under pressure is increased, thereby increasing the luminous intensity and improving the luminous effect. The elastic light-emitting layer 2 can be a single-layer structure, or a double-layer or triple-layer structure. Specifically, when the elastic light-emitting layer 2 is a single-layer structure, it is made by dispersing luminescent particles in a polymer matrix; when the elastic light-emitting layer 2 is a double-layer or triple-layer structure, it is composed of a mechanoluminescent material and a polymer matrix layer stacked together. Common mechanoluminescent materials are inorganic materials (such as SrAl2O4:Eu). 2+ System and ZnS:Cu 2+ The materials are classified into three main categories: organic materials (such as tetraphenylethylene derivatives and other aggregation-induced emission materials), and organic-inorganic hybrid complexes. In some applications, two or three of these materials can be mixed to modulate the emission color. Specifically, different colored luminescent films can be stacked to form a mechanoluminescent layer, or an elastic luminescent layer can be formed by mixing one organic material and one inorganic material, such as ZnS:Cu. 2+ The system is mixed with tetraphenylethylene derivatives to form an elastic light-emitting layer 2; the polymer matrix layer is mainly composed of polydimethylsiloxane, polymethyl methacrylate, polyurethane or polyvinylidene fluoride.

[0029] In some embodiments, when the reinforcing portion 3 is disposed on the glass substrate 1, the reinforcing portion 3 can be formed on the glass substrate by etching. If the reinforcing portion 3 and the glass substrate 1 are separately disposed, they are connected by adhesive bonding. This ensures that the reinforcing portion 3 remains stable in position when strain occurs between it and the elastic light-emitting layer 2.

[0030] In some embodiments, multiple reinforcing portions 3 are provided, and the projected area formed by all the reinforcing portions 3 in the thickness direction of the elastic light-emitting layer 2 is in a grid pattern. Providing multiple reinforcing portions 3 increases the contact area between the elastic light-emitting layer 2 and the reinforcing portions 3, thereby increasing the total shear strain of the elastic light-emitting layer 2 and enhancing the light-emitting effect.

[0031] In some embodiments, the enhancement portion 3 on either side is connected to a substrate 4. Specifically, when the enhancement portion 3 is located on the side of the elastic light-emitting layer 2 away from the glass substrate 1, the enhancement portion 3 can be connected to a substrate 4. In other embodiments, when the enhancement portion 3 is located on the side of the elastic light-emitting layer 2 away from the glass substrate 1, the enhancement portion 3 may not be connected to the substrate 4, but may be directly connected to the elastic light-emitting layer 2.

[0032] In some embodiments, in the thickness direction of the elastic light-emitting layer 2, the cross-sectional width of the end of the reinforcing portion 3 near the substrate 4 is greater than the cross-sectional width of the end of the reinforcing portion 3 away from the substrate 4. Since the force direction of the elastic light-emitting layer 2 is in the thickness direction of the elastic light-emitting layer 2, this structural design of the reinforcing portion 3 can increase the contact area between the reinforcing portion 3 and the elastic light-emitting layer 2, thereby increasing the shear strain generated during the compression and resetting process of the elastic light-emitting layer 2 and enhancing the light-emitting effect.

[0033] In some embodiments, the cross-section of the reinforcing portion 3 is triangular in the thickness direction of the elastic light-emitting layer 2. Similarly, when the cross-section of the reinforcing portion 3 is triangular, the contact area between the reinforcing portion 3 and the elastic light-emitting layer 2 increases, thereby increasing the strain between them and improving the luminous intensity.

[0034] In some embodiments, the reinforcing portion 3 has a cross-shaped cross section in the thickness direction of the elastic light-emitting layer 2. The cross-shaped reinforcing portion 3 can form an interlocking structure with the elastic light-emitting layer 2, thereby increasing the contact area between the two and enhancing the strain between them while the elastic light-emitting layer 2 deforms, thus improving the luminous intensity.

[0035] In some embodiments, when reinforcement portions 3 are provided on both sides of the elastic light-emitting layer 2, the cross-sectional width of the reinforcement portion 3 near the outer wall of the elastic light-emitting layer 2 is greater than the cross-sectional width of the reinforcement portion 3 away from the outer wall of the elastic light-emitting layer 2. Further, in the thickness direction of the substrate 4, the cross-sectional width of the reinforcement portion 3 connected to the glass substrate 1 near the glass substrate 1 is greater than the cross-sectional width of the reinforcement portion 3 away from the glass substrate 1. Specifically, the elastic light-emitting layer 2 not only wraps around both reinforcement portions 3 simultaneously, but is also sandwiched between the two reinforcement portions 3. The purpose of providing two reinforcement portions 3 is to further increase the contact area when the elastic light-emitting layer 2 deforms, and because the two reinforcement portions 3 are arranged oppositely, when the elastic light-emitting layer 2 is deformed under pressure, the two reinforcement portions 3 simultaneously apply opposing forces to the elastic light-emitting layer 2 in different directions, enhancing the strain between the elastic light-emitting layer 2 and the two reinforcement portions 3, and improving the luminous intensity. To avoid structural damage caused by the interaction of the reinforcement portions 3 on both sides, the reinforcement portions 3 on both sides need to be staggered in the width and length directions of the glass substrate 1.

[0036] In some embodiments, the thickness d of the reinforcing portion 3 is less than the thickness h of the elastic light-emitting layer 2 in the thickness direction of the elastic light-emitting layer 2. If the thickness of the elastic light-emitting layer 2 is too small (refer to...), Figure 8 When force is applied, it is blocked by the reinforcing part 3 and cannot be applied to the elastic light-emitting layer 2, making it difficult to emit light. If the thickness of the elastic light-emitting layer 2 is too large (refer to...), Figure 9 Because external forces cannot easily reach the contact point between the elastic light-emitting layer 2 and the reinforcing part 3, the transmission depth of the external force is limited, preventing the generation of maximum strain between the elastic light-emitting layer 2 and the reinforcing part 3, resulting in poor light emission. To address this, the thickness difference between the reinforcing part 3 and the elastic light-emitting layer 2 is further limited. To generate the most effective strain between the reinforcing part 3 and the elastic light-emitting layer 2, the thickness d of the reinforcing part 3 is less than or equal to 75% of the thickness h of the elastic light-emitting layer 2, i.e., d is less than or equal to 0.75h. Furthermore, the thickness relationship between the thickness d of the reinforcing part 3 and the thickness h of the elastic light-emitting layer 2 is 0.5h ≤ d ≤ 0.75h. Within this thickness range, preferably, the thickness of the reinforcing part 3 is 75% of the thickness of the elastic light-emitting layer 2. In other alternatives, the thickness d of the reinforcing part can be 55%, 60%, 63%, 65%, 66%, 67%, 68%, 69%, 70%, 71%, 72%, 73%, or 74% of the thickness h of the elastic light-emitting layer 2. In some specific embodiments, the thickness of the light-emitting functional layer is 150 μm to 350 μm. To achieve the best light-emitting effect, the minimum spacing between adjacent reinforcing portions 3 is at least twice the width of the widest point of the reinforcing portion 3, where the widest point of the reinforcing portion 3 refers to the position where the spacing between two points in the projected region of the reinforcing portion 3 in the thickness direction is the largest. Figure 8 and Figure 9In the middle, the width of the widest part of the reinforcing part 3 is 150 μm, and the spacing between adjacent reinforcing parts 3 is also 150 μm.

[0037] In some embodiments, to maximize the strain between the elastic light-emitting layer 2 and the two reinforcing portions 3, the sum of the thicknesses of the two reinforcing portions 3 is less than the thickness of the elastic light-emitting layer 2 in the thickness direction of the elastic light-emitting layer 2. Since a portion of the elastic light-emitting layer 2 is sandwiched between the two reinforcing portions 3, when the elastic light-emitting layer 2 is compressed and deforms toward the reinforcing portion 3 away from the force-applying side, the reinforcing portion 3 on the force-applying side will move relative to the reinforcing portion 3 on the other side as the force is applied, causing strain to occur simultaneously on both sides of the elastic light-emitting layer 2, thereby enhancing the light-emitting effect.

[0038] In some embodiments, the contact surfaces between the elastic light-emitting layer 2 and the reinforcing portion 3 are adhesive. This increases the connection strength between the elastic light-emitting layer 2 and the reinforcing portion 3, and also enhances the shear strain between the elastic light-emitting layer 2 and the reinforcing portion 3 after the elastic light-emitting layer 2 is subjected to force. Specifically, the elastic light-emitting layer 2 is made of an adhesive material or is connected to the reinforcing portion 3 by an adhesive. To improve the adhesion between the reinforcing portion 3 and the light-emitting layer 2, any contact surface between the reinforcing portion 3 and the light-emitting layer 2 is a rough surface. Preferably, this contact surface is located on the surface of the reinforcing portion 3. Optionally, when the elastic light-emitting layer is a single-layer structure, the elastic light-emitting layer 2 is mainly composed of a mechanoluminescent material and a polymer matrix, and the mechanoluminescent material is mainly an inorganic material (such as SrAl2O4:Eu). 2+ System and ZnS:Cu 2+ The materials can be categorized into three main types: organic materials (such as tetraphenylethylene derivatives and other aggregation-induced emission materials) and organic-inorganic hybrid complexes. Specifically, zinc sulfide-based materials can be selected.

[0039] In some embodiments, when the glass is made into a light-emitting glass, a protective layer 5 is provided to prevent moisture, oxygen, dust or oil in the environment from interfering with the light-emitting functional layer, to prevent the surface of the light-emitting glass from being scratched and to prevent fingerprints from adhering. The protective layer 5 is disposed outside the force-emitting layer and connected to the glass substrate 1.

[0040] The reinforcing part 3 can be formed by molding or by directly etching a thick glass substrate 1. The reinforcing part 3 formed by either method is integrally formed with the glass substrate 1 without the need for an adhesive. In other embodiments, the reinforcing part 3 can also be bonded to the glass substrate 1 using an adhesive. To ensure sufficient support for the elastic light-emitting layer 2 during deformation and maximize shear strain, both the substrate 4 and the reinforcing part 3 are made of materials with high rigidity. Specifically, transparent or translucent materials can be used, such as inorganic glass or organic glass like PC (polycarbonate) or PMMA (polymethyl methacrylate). Polyacrylate, polyurethane, polyether, or silicone materials can also be selected. Depending on actual needs, an anti-fog coating or a coating with heat insulation or low-emissivity properties can also be applied to the substrate 4.

[0041] Please refer to Figure 1 Embodiment 1 of the present invention is as follows:

[0042] A light-emitting glass includes a glass substrate 1, an elastic light-emitting layer 2, and a reinforcing portion 3. The elastic light-emitting layer 2 covers the reinforcing portion 3, and the reinforcing portion 3 increases the shear strain of the elastic light-emitting layer 2 when it deforms. The reinforcing portion 3 is disposed on the side of the elastic light-emitting layer 2 near the glass substrate 1, and the reinforcing portion 3 is disposed on the glass substrate 1. The contact surface between the elastic light-emitting layer 2 and the reinforcing portion 3 is adhesive. Optionally, when the reinforcing portion 3 is disposed on the glass substrate 1, the reinforcing portion 3 can be formed on the glass substrate by etching. If the reinforcing portion 3 and the glass substrate 1 are separate, they are connected by adhesive bonding. Preferably, the material of the elastic light-emitting layer 2 is ZnS:Cu. 2+ The reinforcing part 3, made by mixing with a polydimethylsiloxane elastomer, is available in two materials: transparent and opaque. The transparent material consists of a microneedle array made of cross-linked polyacrylate material, while the opaque material consists of a silicon wafer microneedle array. When this luminescent glass is used as vehicle glass, the reinforcing part 3 is made of a transparent material.

[0043] The working principle of this embodiment is as follows:

[0044] External pressure is applied to the side of the elastic light-emitting layer 2 away from the glass substrate 1, and shear strain occurs between the elastic light-emitting layer 2 and the reinforcement 3. The elastic light-emitting layer 2 emits light. Since the contact area between the elastic light-emitting layer 2 and the reinforcement 3 increases, the strain between the elastic light-emitting layer 2 and the reinforcement 3 is enhanced, thereby improving the luminous intensity.

[0045] Please refer to Figure 2 Embodiment two of the present invention is as follows:

[0046] A light-emitting glass includes a glass substrate 1, an elastic light-emitting layer 2, and a reinforcing portion 3. The elastic light-emitting layer 2 covers the reinforcing portion 3, and the reinforcing portion 3 is used to increase the shear strain of the elastic light-emitting layer 2 when it deforms. Reinforcing portions 3 are provided on both sides of the elastic light-emitting layer 2, one of which is disposed on the glass substrate 1. The reinforcing portion 3 located on the side of the elastic light-emitting layer 2 away from the glass substrate 4 may or may not be connected to the substrate 4. The contact surface between the elastic light-emitting layer 2 and the reinforcing portion 3 is adhesive. In some embodiments, the thickness of the reinforcing portions 3 on both sides may be the same or different.

[0047] Please refer to Figure 3 and Figure 4 Embodiment 3 of the present invention is as follows:

[0048] A light-emitting glass includes a glass substrate 1, an elastic light-emitting layer 2, and a reinforcing portion 3; the elastic light-emitting layer 2 covers the reinforcing portion 3, and the reinforcing portion 3 is used to increase the shear strain of the elastic light-emitting layer 2 when it deforms; the reinforcing portion 3 is provided on one side of the elastic light-emitting layer 2, and the reinforcing portion 3 is connected to a substrate 4, the substrate 4 is provided on either side of the elastic light-emitting layer 2, and the contact surface between the elastic light-emitting layer 2 and the reinforcing portion 3 is adhesive.

[0049] Please refer to Figure 5 Embodiment four of the present invention is as follows:

[0050] Based on any one of the embodiments from Embodiment 1 to Embodiment 3, multiple reinforcement parts 3 are provided, and in the thickness direction of the elastic light-emitting layer 2, the projection area formed by all the reinforcement parts 3 is in the shape of a grid.

[0051] Please refer to Figure 6 Embodiment five of the present invention is as follows:

[0052] Based on any one of Embodiments 2 to 4, in the thickness direction of the substrate 4, the cross-sectional width of the end of the reinforcing part 3 near the substrate 4 is greater than the cross-sectional width of the end of the reinforcing part 3 away from the substrate 4.

[0053] Please refer to Figure 7 Embodiment six of the present invention is as follows:

[0054] Based on any of Embodiments 1 to 5, the cross-section of the reinforcing portion 3 in the thickness direction of the elastic light-emitting layer 2 can be a symmetrical structure such as an isosceles triangle, a cross, an isosceles trapezoid, or an umbrella shape. In other equivalent embodiments, the reinforcing portion 3 can also have other asymmetrical structures. Two or more reinforcing portions 3 with different structures can be provided on the same substrate 4 or the same glass substrate 1, or multiple reinforcing portions 3 with the same structure can be provided. In this embodiment, three types of reinforcing portions 3 with triangular cross-sections but different cross-sectional areas are provided on the substrate 4.

[0055] Please refer to 1- Figure 4 Embodiment seven of the present invention is as follows:

[0056] Based on any one of Embodiments 1 to 6, in the thickness direction of the elastic light-emitting layer 2, the thickness of the reinforcing portion 3 is less than the thickness of the elastic light-emitting layer 2. In some embodiments, the thickness d of the reinforcing portion 3 is less than or equal to 75% of the thickness h of the elastic light-emitting layer 2, i.e., d is less than or equal to 0.75h. Further, the thickness relationship between the thickness d of the reinforcing portion 3 and the thickness h of the elastic light-emitting layer 2 is 0.5h ≤ d ≤ 0.75h. Preferably, the thickness of the reinforcing portion 3 is 75% of the thickness of the elastic light-emitting layer 2. In some specific embodiments, the thickness of the light-emitting functional layer is 150μm to 350μm. To achieve the best light-emitting effect, the minimum spacing between adjacent reinforcing portions 3 is at least twice the width of the widest part of the reinforcing portion 3.

[0057] Please refer to Figure 2 Embodiment 8 of the present invention is as follows:

[0058] Based on Embodiments 2, 4, or 5, when reinforcement portions 3 are provided on both sides of the elastic light-emitting layer 2, in the thickness direction of the substrate 4, the cross-sectional width of the end of the reinforcement portion 3 connected to the glass substrate 1 closer to the glass substrate 1 is greater than the cross-sectional width of the end of the reinforcement portion 3 farther from the glass substrate 1. In some embodiments, in the thickness direction of the elastic light-emitting layer 2, the sum of the thicknesses of the two reinforcement portions 3 is less than the thickness of the elastic light-emitting layer 2. In this embodiment, to avoid structural damage caused by the interaction of the reinforcement portions 3 on both sides, it is necessary to stagger the reinforcement portions 3 on both sides in the width and length directions of the glass substrate 1.

[0059] Please refer to Figures 1-4 Embodiment nine of the present invention is as follows:

[0060] Based on any one of Embodiments 1 to 8, a protective layer 5 is further included; the protective layer 5 is disposed outside the mechanoluminescent layer and connected to the glass substrate 1. The material of the protective layer can be PET film, polyacrylate adhesive layer or silicone material.

[0061] In summary, the luminescent glass provided by this invention, by providing reinforcing portions on the glass or substrate, utilizes the elastic deformation property of the elastic luminescent layer under stress. Combined with the adhesiveness of the elastic luminescent layer itself or the adhesive, and the rigid reinforcing portions, the strain generated on one or both sides of the elastic luminescent layer under stress is increased, thereby increasing the luminous intensity of the luminescent glass. Furthermore, by incorporating various reinforcing portions with different structures, the luminous effect of the luminescent glass can be diversified.

[0062] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A mechanoluminescent layer, characterized in that, The elastic light-emitting layer and the reinforcing part are included; The elastic light-emitting layer is coated on the reinforcing part, and the reinforcing part is used to increase the shear strain of the elastic light-emitting layer when the elastic light-emitting layer is deformed; The reinforcing part is arranged on one side or both sides of the elastic light-emitting layer; The thickness of the reinforcing part is less than or equal to 75% of the thickness of the elastic light-emitting layer; The material of the reinforcing part is rigid material.

2. A mechanoluminescent layer according to claim 1, wherein, The reinforcing part is arranged in multiple, and the projection area formed by all the reinforcing parts in the thickness direction of the elastic light-emitting layer is in grid shape.

3. A mechanoluminescent layer according to claim 1, wherein, The reinforcing part on one side is connected with a substrate.

4. A mechanoluminescent layer according to claim 3, wherein, In the thickness direction of the substrate, the cross-sectional width of the reinforcing part near one end of the substrate is greater than the cross-sectional width of the reinforcing part away from the substrate.

5. The mechanoluminescent layer according to claim 1, wherein, In the thickness direction of the elastic light-emitting layer, the cross-section of the reinforcing part is in triangular shape, cross shape, isosceles trapezoidal shape or umbrella shape.

6. A mechanoluminescent layer according to claim 1, wherein, When the reinforcing part is arranged on both sides of the elastic light-emitting layer, the cross-sectional width of the reinforcing part near one end of the outer wall of the elastic light-emitting layer is greater than the cross-sectional width of the reinforcing part away from the outer wall of the elastic light-emitting layer.

7. A mechanoluminescent layer according to claim 1, wherein, In the thickness direction of the elastic light-emitting layer, the sum of the thicknesses of the two reinforcing parts is less than the thickness of the elastic light-emitting layer.

8. A mechanoluminescent layer according to claim 1, wherein, The minimum distance between the adjacent reinforcing parts is at least one time of the width of the widest part of the reinforcing part.

9. The mechanoluminescent layer according to any one of claims 1-6, wherein the piezophosphor is a piezochromic phosphor. The contact surface between the elastic light-emitting layer and the reinforcing part has viscosity.

10. A mechanoluminescent layer according to claim 9, wherein, Any contact surface between the reinforcing part and the light-emitting layer is rough surface.

11. A luminescent glass, characterized by The piezoluminescent layer includes a glass substrate and the piezoluminescent layer as claimed in any one of claims 1-10. The piezoluminescent layer is connected with the glass substrate.

12. A luminescent glass according to claim 11, wherein Further including a protective layer; The protective layer is arranged outside the piezoluminescent layer and connected with the glass substrate.

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