Display panel, method for manufacturing display panel, and display device

Abstract

The application discloses a display panel, a preparation method of the display panel and a display device, and relates to the technical field of display panels. The display panel comprises a first area and a second area; the light transmittance of the first area is less than that of the second area; the display panel further comprises a substrate, a metal layer located in the first area, a light shielding part located in the first area, the light shielding part being located on the side of the metal layer away from the substrate, and a transparent part located in the second area, at least part of the light shielding part being adjacent to the transparent part; a hydrophobic structure is arranged on the side surface of the transparent part away from the substrate, the amount of residual light shielding material on the surface of the transparent part can be reduced, the light transmittance of the display screen can be improved, a barrier structure does not need to be additionally arranged between the light shielding part and the transparent part, the pixel density of the display panel can be improved on the basis of ensuring the light shielding effect, and the transparent display effect of the display screen is improved.

Description

Technical Field

[0001] This invention relates to the field of display technology, and more particularly to display panels, methods for manufacturing display panels, and display devices. Background Technology

[0002] Transparent display technology, as a new technology that has emerged in recent years, has attracted much attention. This technology has greatly expanded the scenarios and scope of display applications and provided convenience for people's lives.

[0003] The key component of transparent display technology is the transparent display panel, which appears as a piece of transparent glass when closed. When in operation, viewers can not only see the content displayed on the panel, but also see objects behind it. Therefore, the transparent display panel must have both ultra-high transmittance and excellent display effect.

[0004] Due to limitations in the manufacturing process, existing transparent display panels sometimes leave residues of light-blocking ink in transparent areas without metal structures, affecting the overall transmittance of the transparent display and thus impacting its transparent display performance. Summary of the Invention

[0005] This invention provides a display panel, a method for preparing the display panel, and a display device to improve the light transmittance of a transparent display panel.

[0006] According to one aspect of the present invention, a display panel is provided, comprising: a first region and a second region; wherein the light transmittance of the first region is less than the light transmittance of the second region;

[0007] The display panel also includes:

[0008] Substrate;

[0009] A metal layer is located on one side of the substrate and in the first region;

[0010] A light-shielding portion is located in the first region, and the light-shielding portion is located on the side of the metal layer away from the substrate.

[0011] A transparent portion is located in the second region, and at least a portion of the light-blocking portion is adjacent to the transparent portion;

[0012] The transparent portion has a hydrophobic structure on the side of its surface away from the substrate.

[0013] According to another aspect of the present invention, a method for manufacturing a display panel is provided, the display panel comprising a first region and a second region, wherein the light transmittance of the first region is less than the light transmittance of the second region, the method for manufacturing the display panel comprising:

[0014] Provide substrates;

[0015] In the first region, a metal layer is formed on one side of the substrate.

[0016] In the second region, a transparent portion is formed on the side of the substrate on which the metal layer is disposed;

[0017] A hydrophobic structure is formed on the surface of the transparent portion away from the substrate.

[0018] A light-shielding portion is formed on the side of the metal layer away from the substrate; at least a portion of the light-shielding portion is adjacent to the transparent portion.

[0019] According to another aspect of the present invention, a display device is provided, characterized in that it includes the display panel described above.

[0020] The display panel provided by the present invention has a metal layer disposed on a substrate in a first region with low light transmittance to form at least one of pixel circuits and signal traces, thereby enabling the display function of the display panel. A transparent portion is disposed in a second region with high light transmittance to ensure the light transmittance of the display panel. A light-shielding portion is formed on the side of the metal layer in the first region away from the substrate to block the metal traces in the metal layer, thereby reducing reflectivity, improving contrast, and reducing color shift. By providing a hydrophobic structure on the surface of the transparent portion away from the substrate, the residual amount of light-shielding material on the surface of the transparent portion can be reduced, thereby improving the light transmittance of the display screen. Furthermore, it is not necessary to provide a separate barrier structure between the light-shielding portion and the transparent portion, which can increase the pixel density of the display panel while ensuring the light-shielding effect and improve the transparent display effect of the display screen.

[0021] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of a transparent part provided in an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of another transparent portion structure provided in an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention;

[0029] Figure 7 This is a schematic diagram of another transparent portion structure provided in an embodiment of the present invention;

[0030] Figure 8 This is a schematic diagram of another display panel provided in an embodiment of the present invention;

[0031] Figure 9 This is a flowchart of a method for manufacturing a display panel according to an embodiment of the present invention;

[0032] Figure 10 This is a process diagram illustrating the fabrication of a display panel according to an embodiment of the present invention;

[0033] Figure 11 This is a diagram illustrating the fabrication process of a hydrophobic structure provided in an embodiment of the present invention;

[0034] Figure 12 This is a diagram illustrating the preparation process of another hydrophobic structure provided in an embodiment of the present invention;

[0035] Figure 13 This is a flowchart of another method for manufacturing a display panel provided in an embodiment of the present invention;

[0036] Figure 14 This is a process diagram of another display panel provided in an embodiment of the present invention;

[0037] Figure 15 This is a schematic diagram of the structure of a display device provided in an embodiment of the present invention. Detailed Implementation

[0038] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0039] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0040] As described in the background section, during the fabrication of a display panel, due to limitations in the manufacturing process, after the metal layer and transparent portion are fabricated, when forming black ink for light shielding around the light-emitting elements located in the display area, the black ink can spread or splash onto the surface of the transparent portion, leaving residue and affecting the overall transmittance of the transparent display. Existing technologies often use a barrier structure between the light-shielding portion and the transparent portion, which occupies a certain amount of space and reduces the pixel density of the display panel, thus affecting the transparent display effect.

[0041] To address the aforementioned technical problems, embodiments of the present invention provide a display panel, comprising: a first region and a second region; the light transmittance of the first region is less than that of the second region; the display panel further comprises: a substrate; a metal layer located in the first region; a light-shielding portion located in the first region, the light-shielding portion being located on the side of the metal layer away from the substrate; a transparent portion located in the second region, at least a portion of the light-shielding portion being adjacent to the transparent portion; a hydrophobic structure is provided on the surface of the transparent portion away from the substrate.

[0042] By adopting the above technical solution, a metal layer is formed on the substrate in a first region with low light transmittance to form at least one of pixel circuits and signal traces, thereby enabling the display function of the display panel. A transparent portion is formed in a second region with high light transmittance to ensure the light transmittance of the display panel. A light-shielding portion is formed on the side of the metal layer in the first region away from the substrate to block the metal traces in the metal layer. This reduces reflectivity, improves contrast, and reduces color shift. By providing a hydrophobic structure on the surface of the transparent portion away from the substrate, the amount of light-shielding material remaining on the surface of the transparent portion can be reduced, thereby improving the light transmittance of the display screen. Furthermore, it is not necessary to set a separate barrier structure between the light-shielding portion and the transparent portion. This allows for increased pixel density of the display panel while ensuring the light-shielding effect, thus improving the transparent display effect of the display screen.

[0043] The above is the core idea of ​​this invention. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention. The technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0044] Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of the present invention, such as... Figure 1 As shown, the display panel includes: a first region A1 and a second region A2; the light transmittance of the first region A1 is less than that of the second region A2; the display panel 10 also includes: a substrate 10; a metal layer 20 located on one side of the substrate 10 and located in the first region A1; a light-shielding portion 30 located in the first region A1, the light-shielding portion 30 being located on the side of the metal layer 20 away from the substrate 10; a transparent portion 40 located in the second region A2, at least part of the light-shielding portion 30 being adjacent to the transparent portion 40; a hydrophobic structure 41 is provided on the surface of the transparent portion 40 away from the substrate 10.

[0045] Specifically, the substrate 10 can be a transparent glass substrate to ensure the light transmittance of the display panel. A metal layer 20 can be formed on the substrate 10 in a first region A1 with low light transmittance. The metal layer 20 can include at least one of copper, nickel, gold, palladium-nickel, tin-lead, and silver to form at least one of pixel circuits 21 and signal traces 22, thereby enabling the display function of the display panel. A transparent portion 40 is formed in a second region A2 with high light transmittance. The transparent portion 40 can be made of a material with high light transmittance to ensure the light transmittance of the display panel, allowing light to pass through the second region A2. This allows the other side of the display panel to be seen through the second region A2 of the display panel 10, thus enabling a transparent display.

[0046] In the first region A1, a light-shielding portion 30 can be formed on the side of the metal layer 20 away from the substrate 10. This is used to block the metal traces in the metal layer 20, reduce reflectivity, improve contrast, and reduce color shift, thereby improving the display effect of the display panel. In the display panel, the first region A1 and the second region A2 are arranged adjacent to each other, such that the transparent portion 30 is arranged adjacent to the metal layer 20. Since the light-shielding portion 30 is provided on the side of the metal layer 20 away from the substrate 10, the transparent portion 40 will be adjacent to at least a portion of the light-shielding portion 30. When manufacturing the display panel, the light-shielding portion 30 is usually formed on the side of the metal layer 20 away from the substrate in the first display region A1 after the metal layer 20 and the transparent portion 40 are completed. The material of the light-shielding portion 30 is usually fluid, such as black ink or black photolithography material. Therefore, a hydrophobic structure 41 can be provided on the side of the transparent portion 40 away from the substrate 10. In this way, when the light-shielding portion 30 is formed, when the light-shielding material spreads to the surface of the transparent portion 40 away from the substrate 10 or is splashed onto the surface of the transparent portion 40 away from the substrate 10, the hydrophobic structure 41 can disperse the light-shielding material remaining on the surface of the transparent portion 20 to the side of the transparent portion 20, thereby reducing the amount of light-shielding material remaining on the surface of the transparent portion 20, thereby improving the light transmittance of the display screen. Furthermore, it is not necessary to provide a separate barrier structure between the light-shielding portion 30 and the transparent portion 40. While ensuring the light-shielding effect, the pixel density of the display panel can be increased, which is beneficial to improving the transparent display effect of the display screen.

[0047] It should be noted that, in order to clearly identify the location of the hydrophobic structure 41, Figure 1 The hydrophobic structure 41 and the transparent portion 40 are different colors. It is understood that the hydrophobic structure 41 and the transparent portion 40 can be an integral structure, or the hydrophobic structure 41 can be a separate structure grown on the surface of the transparent portion 41 away from the substrate 10. This embodiment of the invention does not specifically limit this.

[0048] The display panel provided in this embodiment of the invention has a metal layer formed on a substrate in a first region with low light transmittance to form at least one of pixel circuits and signal traces, thereby enabling the display function of the display panel. A transparent portion is formed in a second region with high light transmittance to ensure the light transmittance of the display panel. A light-shielding portion is formed on the side of the metal layer in the first region away from the substrate to block the metal traces in the metal layer, which can reduce reflectivity, improve contrast, and reduce color shift. By providing a hydrophobic structure on the surface of the transparent portion away from the substrate, the residual amount of light-shielding material on the surface of the transparent portion can be reduced, thereby improving the light transmittance of the display screen. Furthermore, it is not necessary to set an additional barrier structure between the light-shielding portion and the transparent portion, which can increase the pixel density of the display panel while ensuring the light-shielding effect and improve the transparent display effect of the display screen.

[0049] Hydrophobic structure 41 can be a fine hydrophobic structure, which is optional. Figure 2 This is a schematic diagram of the structure of a transparent part provided in an embodiment of the present invention, in conjunction with reference to the reference. Figure 1 and Figure 2 The hydrophobic structure 41 includes a protrusion structure P; the height H0 of the protrusion structure P is in the micrometer range, or the height H0 of the protrusion structure is in the nanometer range, which can achieve the hydrophobic function while maintaining the flatness of the side of the transparent part 40 away from the substrate 10.

[0050] Optional, continue to refer to Figure 1 The display panel includes a light-emitting element 50 located in a first region A1, and at least a light-shielding portion 30 located between the light-emitting element 50 and the transparent portion 40. Along the thickness direction Y of the display panel, the surface of the transparent portion 40 away from the substrate 10 is further away from the substrate 10 than the surface of the light-shielding portion 30 away from the substrate 10. And / or, along the thickness direction Y of the display panel, the surface of the transparent portion 40 away from the substrate 10 is further away from the substrate 10 than the surface of the light-emitting element 50 away from the substrate 10.

[0051] Specifically, assuming the distance between the surface of the transparent portion 40 away from the substrate 10 and the substrate 10 is D1, and the distance between the surface of the light-shielding portion 30 away from the substrate 10 and the substrate 10 is D2, D1 > D2 can be set to ensure that the light-shielding portion 30 does not spread to the surface of the transparent portion 40, thus ensuring the high transmittance of the transparent portion 40. Specifically, the maximum distance between the surface of the transparent portion 40 away from the substrate 10 and the substrate 10 can be set to D1, and the maximum distance between the surface of the light-shielding portion 30 away from the substrate 10 and the substrate 10 can be set to D2, with D1 > D2, to ensure that the light-shielding portion 30 does not spread to the surface of the transparent portion 40.

[0052] For example, when preparing a hydrophobic structure 41 on the surface of the transparent portion 40 away from the substrate 10, the light-emitting element 50 can be prepared on the metal layer 20, and after the transparent portion 40 is prepared, it can be formed by imprinting with a release film. Assuming that the distance between the surface of the light-emitting element 50 away from the substrate 10 and the substrate 10 is D3, D1 > D3 can be set. In this way, when imprinting with a release film to prepare the hydrophobic structure 41 on the surface of the transparent portion 40 away from the substrate 10, the release film can be avoided from imprinting onto the surface of the light-emitting element 50, thus avoiding damage to the light-emitting element 50. Before imprinting with the release film, a planarization layer can be formed on the side of the light-emitting element 50 away from the substrate 10, so that the surface of the first region A1 away from the substrate 10 is flush with the surface of the transparent portion 40 away from the substrate, which facilitates the imprinting of the release film onto the surface of the transparent portion 40 to form the hydrophobic structure 41. Wherein, D1 can be the maximum distance between the surface of the transparent portion 40 away from the substrate 10 and the substrate 10, and D3 can be the maximum distance between the surface of the light-emitting element 50 away from the substrate 10 and the substrate 10, which can ensure that the light-emitting element 50 will not be damaged when the hydrophobic structure 41 is formed by imprinting.

[0053] For example, refer to Figure 1 Along the thickness direction Y of the display panel, the height of the transparent portion 40 is H1; 10μm≤H1≤15μm. This height H1 can be set to exceed the distance D3 between the side surface of the light-emitting element 50 away from the substrate 10 and the substrate 10, so as to reduce the step difference and ensure the high transmittance of the transparent portion 40.

[0054] Optional, Figure 3 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention, such as... Figure 3 As shown, at least part of the light-shielding portion 30 is located between the light-emitting element 50 and the transparent portion 40; the side surface of the light-shielding portion 30 away from the substrate 10 is closer to the substrate 10 than the side surface of the light-emitting element 50 away from the substrate 10, or the side surface of the light-shielding portion 30 away from the substrate 10 is flush with the side surface of the light-emitting element 50 away from the substrate 10.

[0055] Specifically, assuming the light-shielding portion 30 located between the light-emitting element 50 and the transparent portion 40 is the first light-shielding portion 31, meaning the orthographic projection of the first light-shielding portion 31 onto the substrate 10 does not overlap with the orthographic projection of the light-emitting element 50 onto the substrate 10, by setting the surface of the first light-shielding portion 31 away from the substrate 10 to be closer to the substrate 10 than the surface of the light-emitting element 50 away from the substrate 10, the light-shielding material used to fabricate the light-shielding portion 30 will not spread to the surface of the light-emitting element 50 away from the substrate 10, thus preventing the light-shielding material from affecting the light emission of the light-emitting element 50. For example, the maximum distance D4 between the surface of the first light-shielding portion 31 away from the substrate 10 and the substrate 10 can be less than the minimum distance D5 between the surface of the light-emitting element 50 away from the substrate 10 and the substrate 10.

[0056] Or, refer to Figure 1 By setting the surface of the light-shielding portion 30 away from the substrate 10 to be flush with the surface of the light-emitting element 50 away from the substrate 10, the light-shielding material used to fabricate the light-shielding portion 30 can be prevented from spreading to the surface of the light-emitting element 50 away from the substrate 10, thereby avoiding the light-shielding material affecting the light emission of the light-emitting element 50. For example, the maximum distance D between the surface of the first light-shielding portion 31 away from the substrate 10 and the substrate 10 can be flush with the minimum distance between the surface of the light-emitting element 50 away from the substrate 10 and the substrate 10. Furthermore, when the surface of the transparent portion 40 away from the substrate 10 is further away from the substrate 10 than the surface of the light-emitting element 50 away from the substrate 10 along the thickness direction Y of the display panel, by setting the surface of the light-shielding portion 30 away from the substrate 10 to be closer to the substrate 10 than the surface of the light-emitting element 50 away from the substrate 10, or by setting the surface of the light-shielding portion 30 away from the substrate 10 to be flush with the surface of the light-emitting element 50 away from the substrate 10, it can be further ensured that the light-shielding material used to prepare the light-shielding portion 30 will not spread to the surface of the transparent portion 40 away from the substrate 10, thus ensuring the high transmittance of the transparent portion 40.

[0057] For example, continue to refer to Figure 1 or Figure 3 Along the thickness direction of the display panel, the thickness of the light-shielding portion 30 is H2; 2μm≤H2≤10μm. This height H2 can be set lower than the distance D3 between the surface of the light-emitting element 50 away from the substrate 10 and the substrate 10. This can reduce reflectivity while preventing the light-shielding material from spreading to the surface of the transparent portion 40 away from the substrate 10 and affecting the light transmittance of the transparent portion 40, and also prevent the light-shielding material from spreading to the surface of the light-emitting element 50 away from the substrate 10 and affecting the light emission of the light-emitting element 50.

[0058] Optional, Figure 4 This is a schematic diagram of another transparent portion structure provided in an embodiment of the present invention, such as... Figure 4 As shown, the second region A2 includes a middle region A21 and an edge region A22 that at least partially surrounds the middle region A21; the hydrophobic structure 41 includes a first protrusion structure P1 and a second protrusion structure P2; the first protrusion structure P1 is located in the middle region A21, and the second protrusion structure P2 is located in the edge region A22; along the thickness direction Y of the display panel, the height H4 of the second protrusion structure P2 is greater than the height H3 of the first protrusion structure P1.

[0059] Specifically, a groove is formed between adjacent protrusions P. By setting the height H3 of the second protrusion P2 located in the edge region A22 to be greater than that of the first protrusion P1 located in the middle region A21, the groove in the edge region A22 is deeper, while the groove in the middle region A21 is shallower. This results in an upward slope at the bottom of the protrusion P along the direction from the edge region A22 to the middle region A21. When the light-shielding material is splashed onto the side surface of the transparent part 40 away from the substrate 10 during the fabrication of the light-shielding part 30, the light-shielding material splashed onto the side surface of the transparent part 40 away from the substrate 10 can easily disperse from the groove to the side of the transparent part 40 along the slope, without remaining in the middle region A21 of the transparent part 40. This improves the hydrophobic effect of the hydrophobic structure 41 and can further reduce the amount of light-shielding material remaining on the surface of the transparent part 40, thereby further improving the light transmittance of the transparent part 40.

[0060] Optional, Figure 5 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention, such as... Figure 5 As shown, the light-shielding portion 30 includes a first recess 30a adjacent to the transparent portion 40; the bottom of the second protrusion structure P2 is further away from the substrate 10 relative to the first recess 30a.

[0061] Specifically, since the height H4 of the second protrusion P2 located in the edge region A22 is higher than the height H3 of the first protrusion P1 located in the middle region A21, the bottom of the groove in the edge region A22 is closer to the substrate 10 than the bottom of the groove in the middle region A21, as shown by distance D6 in the figure. Based on this, the recess of the light-shielding part 30 adjacent to the transparent part 40 (i.e., the first recess 30a) is closer to the substrate 10 than the bottom of the second protrusion P2. That is, the distance D7 between the side surface of the first recess 30a away from the substrate 10 and the substrate 10 is less than the distance D6 between the bottom of the second protrusion P2 and the substrate 10. This ensures that the height of the light-shielding part 30 does not exceed the lowest point of the transparent part 40, so that the light-shielding part 30 does not spread to the surface of the transparent part 40, thus ensuring the high transmittance of the transparent part 40.

[0062] Optional, Figure 6 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention, such as... Figure 6 As shown, the orthographic projection of the light-shielding portion 30 on the substrate 10 is the first orthographic projection W1, the orthographic projection of the middle region A21 on the substrate 10 is the second orthographic projection W2, and the orthographic projection of the edge region A22 on the substrate 10 is the third orthographic projection W3. The first orthographic projection W1 and the third orthographic projection W3 overlap, while the first orthographic projection W1 and the second orthographic projection W2 do not overlap. In this way, the light-shielding portion 30 only covers the edge region A22 of the transparent portion 40 and does not remain in the middle region A21, which can ensure the light transmittance of the middle region A21 of the transparent portion, thereby making the overall light transmittance of the transparent portion 40 high.

[0063] Or, refer to Figure 5 The first orthographic projection W1 does not overlap with the second orthographic projection W2 and the third orthographic projection W3. In this way, there is no light-shielding material residue on the side of the transparent portion 40 away from the substrate 10, so that the light transmittance of the transparent portion 40 is completely unaffected by the light-shielding portion 30, thus ensuring the high transmittance of the transparent portion 40.

[0064] Optional, Figure 7 This is a schematic diagram of another transparent portion structure provided in an embodiment of the present invention, such as... Figure 7 As shown, the transparent portion 40 includes a sidewall 42 intersecting with the substrate 10; a hydrophilic layer 42a is provided on the surface of the sidewall 42. This allows light-shielding material that spreads or splashes onto the surface of the transparent portion 40 away from the substrate 10 to be more easily dispersed to the sidewall of the transparent portion 40, and further prevents the light-shielding portion 30 from spreading onto the surface of the transparent portion 40 away from the substrate 10 when the thickness of the light-shielding portion 30 is large.

[0065] Optional, Figure 8 This is a schematic diagram of another display panel structure provided in an embodiment of the present invention, such as... Figure 8 As shown, the display panel is characterized by further comprising: a cover plate 60 located on the side of the metal layer 20 and the transparent portion 40 away from the substrate 10; a planarization layer 70 located at least between the metal layer 20 and the cover plate 10.

[0066] It is understood that the light-emitting element 50 is included on the side of the metal layer 20 away from the substrate 10, meaning the cover plate 60 is also located on the side of the light-emitting element 50 and the transparent portion 40 away from the substrate 10, to facilitate the encapsulation of the display panel. Alternatively, a planarization layer 70 can be provided on both the surface of the light-emitting element 50 and the transparent portion 40 away from the substrate 10, thus facilitating the placement of the cover plate on the side of the planarization layer 70 away from the substrate 10. In another feasible embodiment, a planarization layer 70 is also provided between the cover plate and the light-emitting element 50, meaning the planarization layer 70 is only provided on the surface of the light-emitting element 50 away from the substrate 10, so that the surface of the first region A1 away from the substrate 10 is flush with the surface of the transparent portion 40 away from the substrate 10, reducing the thickness of the display panel and contributing to a thinner and lighter display panel.

[0067] Based on the same inventive concept, this embodiment of the invention also provides a method for preparing a display panel, which is used to prepare the display panel provided in any embodiment of the invention. Figure 9 This is a flowchart of a method for manufacturing a display panel according to an embodiment of the present invention. Figure 10 This is a process diagram illustrating the fabrication of a display panel according to an embodiment of the present invention, in conjunction with reference to [reference needed]. Figure 9 and Figure 10 The display panel includes a first region A1 and a second region A2, wherein the light transmittance of the first region A1 is less than that of the second region A2. The method for manufacturing this display panel includes:

[0068] S110, Provides a substrate.

[0069] Specifically, the substrate 10 can be a transparent glass substrate to ensure the light transmittance of the display panel.

[0070] S120, In the first region, a metal layer is formed on one side of the substrate.

[0071] Specifically, the metal layer 20 may include at least one of copper, nickel, gold, palladium-nickel, tin-lead, and silver to form at least one of pixel circuits 21 and signal traces 22, thereby enabling the display function of the display panel. The metal layer 20 may be formed by an etching process. After forming the metal layer 20, a light-emitting element 50 may be disposed on the side of the metal layer 20 away from the substrate 10, such that the pixel circuits 21 of the metal layer 20 are electrically connected to the light-emitting element 50, enabling the pixel circuits 21 to drive the light-emitting element 50 to emit light.

[0072] S130, In the second region, a transparent portion is formed on the side of the substrate on which a metal layer is disposed.

[0073] The transparent part 40 can be made of a material with high light transmittance to ensure the light transmittance of the display panel, so that light can pass through the second area A2, and the other side of the display panel can be seen through the second area A2 of the display panel 10, thereby enabling the display panel to achieve transparent display.

[0074] S140. A hydrophobic structure is formed on the surface of the transparent part away from the substrate.

[0075] Specifically, the hydrophobic structure 41 can be a fine hydrophobic structure. For example, the hydrophobic structure 41 includes a protrusion structure P; the height H0 of the protrusion structure P is in the micrometer range, or the height H0 of the protrusion structure is in the nanometer range, which can achieve the hydrophobic function while maintaining the flatness of the side of the transparent portion 40 away from the substrate 10.

[0076] For example, Figure 11 This is a diagram illustrating the fabrication process of a hydrophobic structure provided in an embodiment of the present invention, as shown below. Figure 11 As shown, when a hydrophobic structure is formed on the surface of the transparent portion away from the substrate, a release film L0 can be used to imprint the display functional layer on the side away from the substrate 10; the release film L0 includes a concave-convex structure M on the side facing the substrate 10.

[0077] S150, A light-shielding portion is formed on the side of the metal layer away from the substrate.

[0078] At least part of the light-blocking portion is adjacent to the transparent portion.

[0079] Specifically, a light-shielding portion 30 is formed on the side of the metal layer 20 of the first display area A1 away from the substrate. The material of the light-shielding portion 30 is typically fluid, such as black ink or black photolithography material. Therefore, a hydrophobic structure 41 can be provided on the side of the transparent portion 40 away from the substrate 10. In this way, when the light-shielding portion 30 is formed, when the light-shielding material spreads to or splashes onto the surface of the transparent portion 40 away from the substrate 10, the hydrophobic structure 41 can disperse the light-shielding material remaining on the surface of the transparent portion 20 to the side of the transparent portion 20, thereby reducing the amount of light-shielding material remaining on the surface of the transparent portion 20. This improves the light transmittance of the display screen, and eliminates the need for a separate barrier structure between the light-shielding portion 30 and the transparent portion 40. This allows for increased pixel density of the display panel while maintaining the light-shielding effect, which is beneficial for improving the transparent display effect of the display screen.

[0080] The method for manufacturing a display panel provided in this embodiment of the invention first forms a metal layer and a transparent portion on one side of a substrate before forming the light-shielding portion. A hydrophobic structure is provided on the surface of the transparent portion away from the substrate. In this way, the amount of light-shielding material remaining on the surface of the transparent portion can be reduced when forming the light-shielding portion, thereby improving the light transmittance of the display screen. Furthermore, it is not necessary to set up a barrier structure between the light-shielding portion and the transparent portion. The pixel density of the display panel can be increased while ensuring the light-shielding effect, thus improving the transparent display effect of the display screen.

[0081] Optional, see reference Figure 11 The release film L0 includes a third region A3; the uneven structure M is located in the third region M; when the release film L0 is used to imprint the transparent portion 40 on the side away from the substrate 10, the second region A2 and the third region A3 at least partially overlap. This allows the uneven structure M to be imprinted onto the surface of the transparent portion 40 on the side away from the substrate 10 to form a hydrophobic structure 41.

[0082] Optional, continue to refer to Figure 10 The first region A1 and the third region A3 do not overlap. This avoids damage to the light-emitting element 50 caused by the uneven structure M of the release film L0.

[0083] Optional, Figure 12 This is a diagram illustrating the preparation process of another hydrophobic structure provided in an embodiment of the present invention, as shown below. Figure 12 As shown, when the side of the transparent portion 40 away from the substrate 10 is farther than the side of the light-emitting element 50 away from the substrate 10, the release film L0 facing the display panel can be provided with a concave-convex structure, which can also prevent the concave-convex structure M of the release film L0 from damaging the light-emitting element 50.

[0084] Optional, Figure 13 This is a flowchart of another method for manufacturing a display panel provided in an embodiment of the present invention. Figure 14 This is a process diagram illustrating the fabrication of another display panel provided in an embodiment of the present invention. The fabrication method of this display panel includes:

[0085] S210, Provides a substrate.

[0086] S220, In the first region, a metal layer is formed on one side of the substrate.

[0087] S230, In the second region, a transparent portion is formed on the side of the substrate on which a metal layer is disposed.

[0088] S240, A hydrophobic structure is formed on the surface of the transparent part away from the substrate.

[0089] S250, A light-shielding portion is formed on the side of the metal layer away from the substrate.

[0090] S260, A planarization layer is formed on the side of the light-shielding part and the transparent part away from the substrate.

[0091] S270, A cover plate is formed on the side of the planarization layer away from the substrate.

[0092] In this embodiment, a planarization layer 70 is provided on the surface of both the light-emitting element 50 and the transparent portion 40 away from the substrate 10, thus facilitating the placement of a cover plate on the side of the planarization layer 70 away from the substrate 10. In another feasible embodiment, the planarization layer 70 is also provided between the cover plate and the light-emitting element 50, that is, the planarization layer 70 is provided only on the surface of the light-emitting element 50 away from the substrate 10, so that the surface of the first region A1 away from the substrate 10 is flush with the surface of the transparent portion 40 away from the substrate 10, which can reduce the thickness of the display panel and facilitate the thinning of the display panel. Then, a cover plate 60 is formed on the side of the planarization layer 70 away from the substrate 10 to facilitate the encapsulation of the display panel.

[0093] Based on the same inventive concept, embodiments of the present invention also provide a display device, which includes a display panel that performs any embodiment of the present invention. Therefore, the display device provided by the embodiments of the present invention includes the technical features of the display panel provided by any embodiment of the present invention, and can achieve the beneficial effects of the display panel provided by any embodiment of the present invention. The similarities can be referred to the above description of the display panel provided by the embodiments of the present invention, and will not be repeated here.

[0094] Figure 15 This is a schematic diagram of the structure of a display device provided in an embodiment of the present invention. The display device 00 can be any electronic product with display function, including but not limited to the following categories: vehicle display, VR display, television, laptop, desktop display, tablet computer, digital camera, mobile phone, smart bracelet, smart glasses, vehicle display, medical equipment, industrial control equipment, touch interactive terminal, etc.

[0095] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0096] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A display panel, characterized by, The display panel comprises: a first region and a second region; a light transmittance of the first region is less than a light transmittance of the second region; the display panel further comprises: a substrate substrate; a metal layer located on one side of the substrate substrate and located in the first region; a light shielding part located in the first region, the light shielding part being located on a side of the metal layer away from the substrate substrate; a transparent part located in the second region, at least part of the light shielding part being adjacent to the transparent part; a side surface of the transparent part away from the substrate substrate is provided with a hydrophobic structure.

2. The display panel of claim 1, wherein, The hydrophobic structure comprises a convex structure; a height of the convex structure is microns or a height of the convex structure is nanometers.

3. The display panel of claim 1, wherein, The display panel comprises a light emitting element, the light emitting element being located in the first region, and at least part of the light shielding part being located between the light emitting element and the transparent part; in a thickness direction of the display panel, a side surface of the transparent part away from the substrate substrate is farther away from the substrate substrate than a side surface of the light shielding part away from the substrate substrate, and / or in the thickness direction of the display panel, a side surface of the transparent part away from the substrate substrate is farther away from the substrate substrate than a side surface of the light emitting element away from the substrate substrate.

4. The display panel of claim 1, wherein, in the thickness direction of the display panel, a height of the transparent part is H1; 10 μm≤H1≤15 μm.

5. The display panel of claim 1, wherein, The display panel comprises a light emitting element, the light emitting element being located in the first region, and at least part of the light shielding part being located between the light emitting element and the transparent part; a side surface of the light shielding part away from the substrate substrate is closer to the substrate substrate than a side surface of the light emitting element away from the substrate substrate, or the side surface of the light shielding part away from the substrate substrate is flush with the side surface of the light emitting element away from the substrate substrate.

6. The display panel of claim 1, wherein, in the thickness direction of the display panel, a thickness of the light shielding part is H2; 2 μm≤H2≤10 μm.

7. The display panel of claim 1, wherein, The second region comprises an intermediate region and an edge region at least partially surrounding the intermediate region; the hydrophobic structure comprises a first convex structure and a second convex structure; the first convex structure is located in the intermediate region, and the second convex structure is located in the edge region; in the thickness direction of the display panel, a height of the second convex structure is greater than a height of the first convex structure.

8. The display panel of claim 7, wherein, a normal projection of the light shielding part on the substrate substrate is a first normal projection, a normal projection of the intermediate region on the substrate substrate is a second normal projection, and a normal projection of the edge region on the substrate substrate is a third normal projection; the first normal projection and the third normal projection have an overlap, and the first normal projection and the second normal projection do not overlap; or, the first normal projection does not overlap with the second normal projection and the third normal projection.

9. The display panel of claim 7, wherein, the light shielding part comprises a first recess adjacent to the transparent part; a bottom of the second convex structure is farther away from the substrate substrate than the first recess.

10. The display panel of claim 1, wherein, the transparent part comprises a sidewall intersecting the substrate substrate; a surface of the sidewall is provided with a hydrophilic layer.

11. The display panel of claim 1, wherein, Further comprising: a cover plate located between the metal layer and the transparent part away from the substrate; a planarization layer; at least between the metal layer and the cover plate.

12. A method for manufacturing a display panel including a first region and a second region, a light transmittance of the first region being less than a light transmittance of the second region, characterized by, The preparation method of the display panel comprises: providing a substrate; forming a metal layer on one side of the substrate in the first area; forming a transparent part on the side of the substrate provided with the metal layer in the second area; forming a hydrophobic structure on the surface of the transparent part away from the substrate; forming a light-shielding part on the side of the metal layer away from the substrate; at least part of the light-shielding part is adjacent to the transparent part.

13. The method of manufacturing a display panel according to claim 12, wherein forming a hydrophobic structure on the surface of the transparent part away from the substrate comprises: using a release film to emboss the side of the transparent part away from the substrate; the concave-convex structure included on the side of the release film facing the substrate.

14. The method of manufacturing a display panel according to claim 13, wherein, The release film comprises a third area; the concave-convex structure is located in the third area; when the side of the transparent part away from the substrate is embossed using a release film, the second area and the third area at least partially overlap.

15. The method of manufacturing a display panel according to claim 14, wherein, The first area and the third area do not overlap.

16. The method of manufacturing a display panel according to claim 12, wherein after forming the light-shielding part on the side of the metal layer away from the substrate, further comprising: forming a planarization layer on the side of the light-shielding part and the transparent part away from the substrate; forming a cover plate on the side of the planarization layer away from the substrate.

17. A display device comprising: The display panel comprises any one of claims 1-11.

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