Display module and display device

Abstract

The application discloses a display module and a display device, and relates to the technical field of display, which can alleviate the problem that devices in the display area of a display panel are burnt in the packaging process.

Description

Technical Field

[0001] This invention relates to the field of display technology, and more specifically, to a display module and a display device. Background Technology

[0002] Currently, organic light-emitting diode (OLED) devices commonly use glass adhesive (Frit) as the encapsulation material, and effective encapsulation is achieved through laser sintering. Glass adhesive is formulated from glass powder and binder. Through temperature treatment, the moisture and organic solvents in the slurry evaporate and decompose. After laser sintering, microscopic bonding occurs at high temperatures, thus achieving effective encapsulation.

[0003] Given the development trend of display products, in order to achieve narrow bezels, the bezel area of ​​current display panels is getting smaller and smaller, and the distance between the fringe and the display area is getting closer and closer. During laser sintering of encapsulation materials, it is easy to burn the components within the display area. Summary of the Invention

[0004] In view of this, the present invention provides a display module and a display device that can alleviate the problem of devices in the display area of ​​the display panel being burned during the packaging process.

[0005] The present invention provides a display module, comprising: a display area and a non-display area surrounding the display area; a first substrate and a second substrate disposed opposite to each other; the non-display area includes at least one blocking portion, the blocking portion being disposed around the display area and located between the first substrate and the second substrate; the non-display area further includes a light adjustment portion, wherein the light adjustment portion and the blocking portion at least partially overlap in a direction perpendicular to the plane of the first substrate.

[0006] Based on the same idea, the present invention also provides a display device, including the display module provided by the present invention.

[0007] Compared with the prior art, the display module and display device provided by the present invention achieve at least the following beneficial effects:

[0008] The non-display area of ​​the display panel provided by this invention includes at least one barrier portion, which is disposed around the display area and located between a first substrate and a second substrate. The barrier portion surrounding the display area prevents external moisture from corroding the devices within the display area. The non-display area of ​​the display panel also includes a light-adjusting portion. Along a direction perpendicular to the plane of the first substrate, the light-adjusting portion at least partially overlaps with the barrier portion. The light-adjusting portion can adjust the laser light irradiating the barrier portion, reducing the heat generated during the curing of the barrier portion when irradiated by the laser, thus mitigating the problem of devices in the display area of ​​the display panel being burned during the packaging process.

[0009] Of course, any product implementing this invention need not necessarily achieve all of the technical effects described above at the same time.

[0010] Other features and advantages of the invention will become clear from the following detailed description of exemplary embodiments of the invention with reference to the accompanying drawings. Attached Figure Description

[0011] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the invention and, together with their description, serve to explain the principles of the invention.

[0012] Figure 1 This is a plan view of a display panel provided by the present invention;

[0013] Figure 2 yes Figure 1 A cross-sectional view of the display panel along line A-A';

[0014] Figure 3 yes Figure 1 Another cross-sectional view of the display panel along A-A';

[0015] Figure 4 yes Figure 3 An enlarged view of part B in the aforementioned display panel;

[0016] Figure 5 yes Figure 1 Another cross-sectional view of the display panel along A-A';

[0017] Figure 6 yes Figure 1 Another cross-sectional view of the display panel along A-A';

[0018] Figure 7 yes Figure 1 Another cross-sectional view of the display panel along A-A';

[0019] Figure 8 yes Figure 1 Another cross-sectional view of the display panel along A-A';

[0020] Figure 9 yes Figure 1 Another cross-sectional view of the display panel along A-A';

[0021] Figure 10 yes Figure 1 Another cross-sectional view of the display panel along A-A';

[0022] Figure 11 This is a plan view of a display device provided by the present invention. Detailed Implementation

[0023] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention.

[0024] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0025] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0026] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0028] Figure 1 This is a plan view of a display panel provided by the present invention. Figure 2 yes Figure 1 A cross-sectional view of the display panel along A-A', see reference. Figure 1 and Figure 2 This embodiment provides a display module, which includes a display area AA and a non-display area NA surrounding the display area AA. The display area AA is used for display.

[0029] The display panel also includes a first substrate 10 and a second substrate 20 disposed opposite to each other. Optionally, when the display panel is a touch display panel, the first substrate 10 is a touch panel and the second substrate 20 is a display panel. In other embodiments of the present invention, the first substrate 10 may also be an array substrate and the second substrate 20 may be an encapsulation cover plate. Of course, in other embodiments of the present invention, the first substrate 10 and the second substrate 20 may also be other substrates disposed opposite to each other, which will not be described in detail here.

[0030] The non-display area NA in the display panel includes at least one barrier portion 30. The barrier portion 30 is disposed around the display area AA and is located between the first substrate 10 and the second substrate 20. The barrier portion 30 surrounding the display area AA can prevent external moisture from corroding the devices within the display area AA. For example, the second substrate 20 is a display panel, including a substrate 21, and a plurality of switching transistors T and a plurality of organic light-emitting units 22 disposed on the substrate 21. The organic light-emitting units 22 are electrically connected to at least one switching transistor T. The organic light-emitting units 22 are susceptible to moisture corrosion, and the barrier portion 30 can be used to seal and encapsulate the first substrate 10 and the second substrate 20. It is understood that in Frit packaging technology, the laser sintering sealing process involves irradiating the laser-sintered sealing material between the first substrate 10 and the second substrate 20 with a laser beam, causing the laser-sintered sealing material to solidify and form the barrier portion 30 for encapsulation.

[0031] The non-display area NA of the display panel also includes a light adjustment section 40. Along the direction perpendicular to the plane of the first substrate 10, the light adjustment section 40 and the blocking section 30 overlap at least partially. The light adjustment section 40 can adjust the laser irradiating the blocking section 30, which can reduce the heat generated by the blocking section 30 when the laser irradiates the blocking section 30 and alleviate the problem of the devices in the display area AA of the display panel being burned during the packaging process.

[0032] Figure 3 yes Figure 1 Another cross-sectional view of the display panel along A-A', see reference. Figure 1 and Figure 3 In some alternative embodiments, the light adjustment unit 40 includes a light dispersion layer 41 located on the side of the first substrate 10 away from the second substrate 20, and the light dispersion layer 41 at least partially overlaps with the blocking unit 30 in a direction perpendicular to the plane of the first substrate 10. The light dispersion layer 41 is used to disperse the laser light to the blocking unit 30.

[0033] Specifically, in Frit packaging technology, a laser irradiates the barrier portion 30 from the side of the first substrate 10 away from the second substrate 20. The dispersion layer 41 is located on the side of the first substrate 10 away from the second substrate 20, and in a direction perpendicular to the plane of the first substrate 10, the light dispersion layer 41 and the barrier portion 30 at least partially overlap. Thus, the laser irradiates the barrier portion 30 after passing through the light dispersion layer 41. The laser irradiated by the light dispersion layer 41 can be dispersed by the light dispersion layer 41 and then irradiate the barrier portion 30, making the laser energy distribution to the barrier portion 30 more uniform. This avoids excessive laser energy received locally in the barrier portion 30 when the laser irradiates it, thereby avoiding excessive heat generated by local solidification of the barrier portion 30 due to excessive laser energy received locally. This also avoids high local temperature in the barrier portion 30 and can alleviate the problem of devices in the display area AA of the display panel being burned during the packaging process.

[0034] It should be noted that this embodiment exemplifies that when the laser irradiates the blocking portion 30 from the side of the first substrate 10 away from the second substrate 20, the light dispersion layer 41 is located on the side of the first substrate 10 away from the second substrate 20. In other embodiments of the present invention, when the laser irradiates the blocking portion 30 from the side of the second substrate 20 away from the first substrate 10, the light dispersion layer 41 may be located on the side of the second substrate 20 away from the first substrate 10. This will not be elaborated further here.

[0035] In some alternative embodiments, the material of the light dispersion layer 41 can be one or more of inorganic salts, indium tin oxide, magnesium oxide, aluminum oxide, and silicon oxide, so that the light dispersion layer 41 can withstand the high temperatures generated during the packaging process. It should be noted that in other embodiments of the present invention, the light dispersion layer 41 may also use other materials according to actual production needs, which will not be elaborated here.

[0036] Figure 4 yes Figure 3 An enlarged schematic diagram of part B in the display panel is shown below. Figure 1 , Figure 3 and Figure 4 In some alternative embodiments, the surface of the light dispersion layer 41 away from the blocking portion 30 includes at least one arc surface 411, which is concave toward the direction of the blocking portion 30. When part of the laser irradiates the arc surface 411, it will be refracted, thereby changing the propagation direction and irradiating the blocking portion 30, thereby dispersing the laser to the blocking portion 30.

[0037] In existing Frit packaging technology, when a laser irradiates the surface of the light dispersion layer 41 away from the barrier portion 30, the energy in the central region of the light spot is higher than that in the surrounding region. This can easily result in higher laser energy received in the region corresponding to the center of the light spot in the barrier portion 30. Consequently, more heat is generated during the curing of the region corresponding to the center of the light spot in the barrier portion 30, resulting in a higher temperature in the region corresponding to the center of the light spot. This can easily lead to the problem of burn-in of the components in the display area AA of the display panel.

[0038] Continue to refer to Figure 1 , Figure 3 and Figure 4 Specifically, the structure of the display panel in the first section can be found in the attached document. Figure 3 and attached Figure 4 In some alternative embodiments, in the first cross section, the arc surface 411 is an arc. The arc is centrally symmetrical, and along the direction perpendicular to the plane where the first substrate 10 is located, the center of the arc coincides with the center of the light spot formed by the laser irradiation on the light dispersion layer 41. The first cross section is perpendicular to the plane where the first substrate 10 is located, and the first cross section is perpendicular to the edge of the first substrate 10.

[0039] Specifically, the curved surface 411 is concave towards the direction of the barrier portion 30, and in the first cross section, along the direction perpendicular to the plane of the first substrate 10, the center of the arc coincides with the center of the light spot formed by the laser irradiating the light dispersion layer 41. That is, when the laser irradiates the surface of the light dispersion layer 41 away from the barrier portion 30, part of the laser irradiated in the central area of ​​the light spot is deflected away from the central area, which reduces the laser energy in the region of the barrier portion 30 corresponding to the central area of ​​the light spot formed by the laser irradiating the light dispersion layer 41, and increases the laser energy in the region of the barrier portion 30 corresponding to the surrounding area of ​​the light spot formed by the laser irradiating the light dispersion layer 41. This makes the laser energy distribution in the barrier portion 30 more uniform, which can avoid the region of the barrier portion 30 corresponding to the central area of ​​the light spot formed by the laser irradiating the light dispersion layer 41 receiving too much laser energy. This avoids the heat generated when the region of the barrier portion 30 corresponding to the central area of ​​the light spot solidifies, thus avoiding the high temperature in the region of the barrier portion 30 corresponding to the central area of ​​the light spot, and effectively alleviates the problem of the devices in the display area AA of the display panel being burned.

[0040] Continue to refer to Figure 1 , Figure 3 and Figure 4 In some optional embodiments, the width of the arc surface 411 along the first direction X is smaller than the diameter of the light spot formed by the laser irradiation on the light dispersion layer, wherein the first direction X is the direction from the display area AA to the non-display area NA, and the first direction X is perpendicular to the edge of the first substrate 10.

[0041] Specifically, in the existing Frit packaging technology, the energy of the light spot formed by the laser irradiating the surface of the light dispersion layer 41 away from the barrier portion 30 is higher in the central region and lower in the surrounding region. The width of the arc surface 411 along the first direction X can be smaller than the diameter of the light spot formed by the laser irradiating the light dispersion layer. It is only necessary to deflect part of the laser irradiating the central region of the light spot away from the central region, so that the laser energy in the region of the barrier portion 30 corresponding to the central region of the light spot formed by the laser irradiating the light dispersion layer 41 is reduced.

[0042] Of course, in other embodiments of the present invention, the width of the arc surface 411 along the first direction X can also be equal to the diameter of the light spot formed by the laser irradiation on the light dispersion layer.

[0043] In some alternative embodiments, the width of the light dispersion layer 41 along the first direction X is greater than or equal to the diameter of the light spot formed by the laser irradiating the light dispersion layer 41, so that the laser is irradiated to the blocking part 30 after being adjusted by the light dispersion layer 41, making the laser energy distribution in the blocking part 30 more uniform.

[0044] In some alternative embodiments, the laser spot formed on the surface of the light dispersion layer 41 away from the blocking part 30 has a Gaussian distribution of energy from the center region to the surrounding region. Correspondingly, the width of the arc surface 411 in the first direction X and the curvature of the arc surface 411 in each region can be set according to the Gaussian distribution function of the light spot energy, so that the laser energy distribution in the blocking part 30 is more uniform.

[0045] Figure 5 yes Figure 1 Another cross-sectional view of the display panel along A-A', see reference. Figure 1 and Figure 5 In some optional embodiments, the light adjustment unit 40 includes a first reflective layer 42, which is located on the side of the first substrate 10 near the second substrate 20. Along a direction perpendicular to the plane of the first substrate 10, the first reflective layer 42 at least partially overlaps with the blocking part 30. When the laser irradiates the blocking part 30 from the side of the first substrate 10 away from the second substrate 20, some of the laser is reflected back in the direction away from the second substrate 20 after passing through the first reflective layer 42, thereby reducing the amount of laser irradiating the blocking part 30. This can reduce the heat generated during the curing of the blocking part 30 and alleviate the problem of the devices in the display area AA of the display panel being burned during the packaging process.

[0046] The light adjustment unit 40 also includes a second reflective layer 43, which is located on the side of the second substrate 20 close to the first substrate 10. The first reflective layer 42 and the second reflective layer 43 are disposed opposite to each other. Along the direction perpendicular to the plane of the first substrate 10, the second reflective layer 43 overlaps at least partially with the barrier part 30. The laser irradiated into the barrier part 30 can be reflected multiple times between the oppositely disposed first reflective layer 42 and second reflective layer 43, thereby improving the utilization rate of the laser irradiated into the barrier part 30 and improving the curing effect of the barrier part 30.

[0047] The light transmittance of the first reflective layer 42 is greater than that of the second reflective layer 43, meaning that the light transmittance of the second reflective layer 43 is smaller. Most of the laser light directed at the second reflective layer 43 can be reflected to the blocking part 30, effectively improving the utilization rate of the laser light irradiating the blocking part 30 and effectively improving the curing effect of the blocking part 30.

[0048] It should be noted that this embodiment exemplarily illustrates that when laser light irradiates the blocking portion 30 from the side of the first substrate 10 away from the second substrate 20, the first reflective layer 42 is located on the side of the first substrate 10 closer to the second substrate 20, and the second reflective layer 43 is located on the side of the second substrate 20 closer to the first substrate 10. In other embodiments of the present invention, when laser light irradiates the blocking portion 30 from the side of the second substrate 20 away from the first substrate 10, the first reflective layer 42 is located on the side of the second substrate 20 closer to the first substrate 10, and the second reflective layer 43 is located on the side of the first substrate 10 closer to the second substrate 20. The present invention will not elaborate further here.

[0049] Optionally, the material of the first reflective layer 42 can be one or more of silicon oxide, indium tin oxide, aluminum oxide, and magnesium oxide. The material of the second reflective layer 43 is a metallic material. It should be noted that in other embodiments of the present invention, the materials of the first reflective layer 42 and the second reflective layer 43 may also be other materials according to actual production needs, which will not be elaborated here.

[0050] Continue to refer to Figure 1 and Figure 5 In some optional embodiments, the first substrate 10 includes a first substrate 11, and a first reflective layer 42 is located on the side of the first substrate 11 close to the second substrate 20. The refractive index of the first reflective layer 42 is greater than that of the first substrate 11. Thus, when the laser is reflected by the second reflective layer 43 to the first reflective layer 42, part of the laser undergoes total internal reflection at the interface between the first reflective layer 42 and the first substrate 11 and is directed back to the barrier portion 30, effectively improving the utilization rate of the laser irradiated to the barrier portion 30 and effectively improving the curing effect of the barrier portion 30.

[0051] Figure 6 yes Figure 1Another cross-sectional view of the display panel along A-A', see reference. Figure 1 and Figure 6 In some optional embodiments, the first reflective layer 42 includes a plurality of sawtooth structures 421, each sawtooth structure 421 including a first reflective surface 4211, the first reflective surface 4211 being located on the side of the sawtooth structure 421 away from the first substrate 10. Along the direction toward the display area AA, the first reflective surface 4211 extends toward the second substrate 20. That is, the first reflective surface 4211 is an inclined surface, and the closer it is to the display area AA, the larger the distance between the first reflective surface 4211 and the second substrate 20 in the direction perpendicular to the plane of the first substrate 10. Therefore, when laser energy is reflected from the second reflective layer 43 to the first reflective layer 42, the laser is reflected on the first reflective surface 4211 and reflected in a direction away from the display area AA, reducing the dissipation of laser energy toward the display area AA. Since the material of the barrier portion 30 is mainly a light-absorbing material, some energy will dissipate during the absorption and curing of laser energy. The first reflective layer 42, by being configured with multiple sawtooth structures 421, effectively reduces the dissipation of laser energy toward the display area AA, thereby effectively alleviating the problem of burn-in of components in the display area AA of the display panel.

[0052] Figure 7 yes Figure 1 Another cross-sectional view of the display panel along A-A', see reference. Figure 1 and Figure 7 In some optional embodiments, the light adjustment unit 40 may simultaneously include a light dispersing layer 41, a first reflective layer 42, and a second reflective layer 43. Specifically, the corresponding structures of the light dispersing layer 41, the first reflective layer 42, and the second reflective layer 43 can be referred to the structures of the light dispersing layer 41, the first reflective layer 42, and the second reflective layer 43 in the other embodiments described above. Further details of this invention will not be elaborated upon here.

[0053] Figure 8 yes Figure 1 Another cross-sectional view of the display panel along A-A', see reference. Figure 1 and Figure 8 In some optional embodiments, the light adjustment unit 40 includes a third reflective layer 44, which is located between the first substrate 10 and the second substrate 20, and between the barrier portion 30 and the display area AA. Since the material of the barrier portion 30 is primarily a light-absorbing material, some energy will dissipate during laser energy absorption and curing. When laser energy is transmitted to the third reflective layer 44, because the third reflective layer 44 is located between the barrier portion 30 and the display area AA, the laser energy will be reflected in a direction away from the display area AA, thereby effectively reducing laser energy dissipation towards the display area AA and preventing the devices in the display area AA of the display panel from being burned.

[0054] Optionally, the third reflective layer 44 can be made of metal, so that the third reflective layer 44 can reflect most of the laser energy transmitted to the third reflective layer 44, preventing the laser energy from escaping into the display area AA and avoiding the problem of the devices in the display area AA of the display panel being burned.

[0055] Figure 9 yes Figure 1 Another cross-sectional view of the display panel along A-A', see reference. Figure 1 and Figure 9 In some alternative embodiments, the third reflective layer 44 has at least one groove 441 on the side away from the display area AA, and the groove 441 is recessed toward the display area AA.

[0056] The groove 441 includes two sidewalls 4411. Along the direction perpendicular to the plane of the first substrate 10, the two sidewalls 4411 are located on both sides of the groove 441. Along the direction toward the display area AA, the two sidewalls 4411 extend toward each other. When laser energy is transmitted to the sidewalls 4411, the laser energy will be reflected away from the display area AA. The sidewalls 4411 are conducive to adjusting the reflection of the laser energy to the first reflective layer 42 or the second reflective layer 43. Thus, the laser energy can be reflected again to the barrier part 30 through the first reflective layer 42 or the second reflective layer 43, effectively improving the utilization rate of the laser energy irradiated to the barrier part 30 and effectively improving the curing effect of the barrier part 30.

[0057] Figure 10 yes Figure 1 Another cross-sectional view of the display panel along A-A', see reference. Figure 1 and Figure 10 In some optional embodiments, the light adjustment unit 40 may simultaneously include a light dispersing layer 41, a first reflective layer 42, a second reflective layer 43, and a third reflective layer 44. Specifically, the corresponding structures of the light dispersing layer 41, the first reflective layer 42, the second reflective layer 43, and the third reflective layer 44 can be referred to the structures of the light dispersing layer 41, the first reflective layer 42, the second reflective layer 43, and the third reflective layer 44 in the other embodiments described above. Further details of this invention will not be elaborated upon here.

[0058] In some alternative embodiments, please refer to Figure 11 , Figure 11 This is a plan view of a display device provided by the present invention. The display device 1000 provided in this embodiment includes the display module 100 provided in the above embodiment of the present invention. Figure 11This embodiment uses a mobile phone as an example to illustrate the display device 1000. It is understood that the display device 1000 provided in this embodiment can also be other display devices 1000 with display functions, such as computers, televisions, and in-vehicle display devices. This invention does not impose specific limitations on these. The display device 1000 provided in this embodiment has the beneficial effects of the display module 100 provided in this embodiment. For details, please refer to the specific descriptions of the display module 100 in the above embodiments; these will not be repeated here.

[0059] As can be seen from the above embodiments, the display module and display device provided by the present invention achieve at least the following beneficial effects:

[0060] The non-display area of ​​the display panel provided by this invention includes at least one barrier portion, which is disposed around the display area and located between a first substrate and a second substrate. The barrier portion surrounding the display area prevents external moisture from corroding the devices within the display area. The non-display area of ​​the display panel also includes a light-adjusting portion. Along a direction perpendicular to the plane of the first substrate, the light-adjusting portion at least partially overlaps with the barrier portion. The light-adjusting portion can adjust the laser light irradiating the barrier portion, reducing the heat generated during the curing of the barrier portion when irradiated by the laser, thus mitigating the problem of devices in the display area of ​​the display panel being burned during the packaging process.

[0061] While specific embodiments of the invention have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of the invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A display module, characterized in that, include: The display area and the non-display area surrounding the display area; A first substrate and a second substrate arranged opposite to each other; The non-display area includes at least one barrier portion, which is disposed around the display area and is located between the first substrate and the second substrate; The non-display area further includes a light adjustment section, which includes a light dispersion layer located on the side of the first substrate away from the second substrate. Along a direction perpendicular to the plane of the first substrate, the light dispersion layer at least partially overlaps with the blocking section. The light dispersion layer is used to disperse laser light to the blocking section. The surface of the light-dispersing layer away from the blocking portion includes at least one arc surface, which is concave in the direction close to the blocking portion. In a first cross-section, the arc surface is an arc. The arc is centrally symmetrical and, along a direction perpendicular to the plane of the first substrate, the center of the arc coincides with the center of the light spot formed by the laser irradiating the light-dispersing layer. The first cross-section is perpendicular to the plane of the first substrate and perpendicular to the edge of the first substrate.

2. The display module according to claim 1, characterized in that, The width of the arc surface along the first direction is less than or equal to the diameter of the light spot formed by the laser irradiating the light dispersion layer, wherein the first direction is the direction from the display area to the non-display area, and the first direction is perpendicular to the edge of the first substrate.

3. The display module according to claim 1, characterized in that, The material of the light-dispersing layer is one or more of inorganic salts, indium tin oxide, magnesium oxide, aluminum oxide, and silicon oxide.

4. The display module according to claim 1, characterized in that, The light adjustment section includes a first reflective layer and a second reflective layer disposed opposite to each other. The first reflective layer is located on the side of the first substrate closer to the second substrate, and the second reflective layer is located on the side of the second substrate closer to the first substrate. Along a direction perpendicular to the plane of the first substrate, both the first reflective layer and the second reflective layer at least partially overlap with the blocking section. The light transmittance of the first reflective layer is greater than that of the second reflective layer.

5. The display module according to claim 4, characterized in that, The first substrate includes a first substrate, and the first reflective layer is located on the side of the first substrate closer to the second substrate; The refractive index of the first reflective layer is greater than the refractive index of the first substrate.

6. The display module according to claim 4, characterized in that, The first reflective layer includes a plurality of sawtooth structures, each sawtooth structure including a first reflective surface, the first reflective surface being located on the side of the sawtooth structure away from the first substrate; Along the direction toward the display area, the first reflective surface extends toward the direction toward the second substrate.

7. The display module according to claim 4, characterized in that, The material of the first reflective layer is one or more of silicon oxide, indium tin oxide, aluminum oxide, and magnesium oxide; The material of the second reflective layer is a metallic material.

8. The display module according to claim 4, characterized in that, The light adjustment unit includes a third reflective layer, which is located between the first substrate and the second substrate, and is also located between the blocking part and the display area.

9. The display module according to claim 8, characterized in that, The third reflective layer has at least one groove on the side away from the display area, and the groove is recessed toward the display area. The groove includes two sidewalls. Along a direction perpendicular to the plane of the first substrate, the two sidewalls are located on opposite sides of the groove. Along a direction toward the display area, the two sidewalls extend toward each other.

10. The display module according to claim 1, characterized in that, The first substrate is a touch panel, and the second substrate is a display panel.

11. A display device, characterized in that, The display device includes the display module according to any one of claims 1-10.

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