Display structure, display panel and manufacturing method

Abstract

This disclosure relates to a display structure, display panel, and manufacturing method, and pertains to the field of display technology. It includes a light-emitting element and a driving layer. The light-emitting element is located on a first plane, and the driving layer is located on a second plane intersecting the first plane. The driving layer includes a driving portion located on the second plane, which is used to drive the light-emitting element on the first plane to emit light. By separately arranging the light-emitting element and the driving layer on two different intersecting planes, the problem of pixels not being able to be further densely packed due to the excessive area occupied by the driving layer can be reduced, thereby increasing the density of the light-emitting elements on the first plane.

Description

Technical Field

[0001] This disclosure relates to the field of display technology, and in particular to a display structure, display panel, and manufacturing method. Background Technology

[0002] Display panels are widely used in electronic devices such as mobile phones, tablets, and smart wearable devices. A display panel includes light-emitting elements and driving circuits coupled to the light-emitting elements. Typically, the driving circuit layer, bonding layer, and light-emitting element layer in a display panel are stacked in parallel layers.

[0003] Currently, the area required for a set of light-emitting elements is about 30*30μm, but the area required for the driving device arrangement of a set of light-emitting elements is estimated to be 60*60μm, which is much larger than the area required for the arrangement of light-emitting elements. This results in the light-emitting elements not being able to be densely packed, and the pixel density cannot be further improved. Summary of the Invention

[0004] To address the aforementioned technical problems, this disclosure provides a display structure, a display panel, and a manufacturing method for improving the pixel density of the display panel.

[0005] In a first aspect, this disclosure provides a display structure, comprising: a light-emitting element located on a first plane; a driving layer including a driving portion for driving the light-emitting element to emit light, the driving layer being located on a second plane, the first plane intersecting the second plane.

[0006] Secondly, based on the same inventive concept, this disclosure provides a display panel, which is formed by stacking the display structures as described in the first aspect in the same direction, wherein the second planes corresponding to different display structures in the same display panel are located in the same plane, or the second planes corresponding to different display structures in the same display panel are parallel.

[0007] The light-emitting elements corresponding to different display structures in the same display panel are all located on the first plane.

[0008] Thirdly, based on the same inventive concept, this disclosure provides a display panel that is stacked using the display structures described in the first aspect. The second planes corresponding to the driving layers in different display structures in the same display panel are parallel or located on the same second plane, and the light-emitting elements corresponding to different display structures in the same display panel are all located on the first plane.

[0009] Fourthly, based on the same inventive concept, this disclosure provides a method for manufacturing a display structure, used to manufacture the display structure as described in the first aspect, comprising:

[0010] S1: Take a glass substrate, form a first planarization layer on the glass substrate, and form a metal part corresponding to the driving part in the driving layer on the first planarization layer by multiple physical vapor deposition.

[0011] S2: A second planarization layer is formed on the driving layer, and a glass substrate is covered on the second planarization layer;

[0012] S3: On one side of the metal part, remove part of the edge in a direction perpendicular to the plane where the glass substrate is located;

[0013] S4: Stand the glass substrate upright with the side with the removed edge facing upward, and form a bonding layer on one side of the exposed metal portion;

[0014] S5: A light-emitting element is covered on the bonding layer, and the cathode and anode of the light-emitting element are electrically connected to the bonding layer;

[0015] S6: Encapsulate the light-emitting element and the bonding layer;

[0016] S7: Cut the encapsulation layer and laser peel off the glass substrate.

[0017] Fifthly, based on the same inventive concept, this disclosure provides a method for manufacturing a display panel, used to manufacture the display panel as described in the second aspect, comprising:

[0018] The display structures are sequentially spliced ​​along the same direction, such that the second planes corresponding to different display structures in the same display panel are located in the same plane, or such that the second planes corresponding to different display structures in the same display panel are parallel to each other;

[0019] The light-emitting elements corresponding to different display structures in the same display panel are all located on the first plane.

[0020] Sixthly, based on the same inventive concept, this disclosure provides a method for manufacturing a display panel, used to manufacture the display panel as described in the third aspect, comprising:

[0021] L1: The display structure is sequentially spliced ​​along the first direction to obtain a bar display unit;

[0022] L2: The bar display units are sequentially spliced ​​along a third direction to obtain a display panel;

[0023] The third direction intersects with the first direction, and the third direction is perpendicular to the second direction;

[0024] In this configuration, the second planes corresponding to the driving layers in different display structures within the same display panel are parallel, and the light-emitting elements corresponding to different display structures within the same display panel are all located on the first plane.

[0025] Compared with the prior art, the technical solution provided by this disclosure has the following advantages: by setting the light-emitting element and the driving layer respectively on two different intersecting planes, the problem of pixels not being able to be further densely arranged due to the excessive area occupied by the driving layer can be reduced, and the arrangement density of the light-emitting element on the first plane can be increased; the display panel formed by stacking multiple display structures can not only be used to improve the display effect at the seam of spliced ​​products, but also be stacked and combined into an independent display panel to realize independent display function and increase application scenarios. Attached Figure Description

[0026] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0027] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the display structure described in an embodiment of the present disclosure;

[0029] Figure 2 This is a schematic diagram showing the positional relationship between the first plane and the second plane in an embodiment of this disclosure;

[0030] Figure 3 This is a schematic cross-sectional view of the driving layer according to an embodiment of this disclosure;

[0031] Figure 4 for Figure 1 Top view;

[0032] Figure 5 This is a schematic diagram of a display panel arrangement according to an embodiment of the present disclosure;

[0033] Figure 6 This is a schematic diagram of a display panel arrangement according to an embodiment of the present disclosure;

[0034] Figure 7 This is a schematic diagram of a display panel arrangement according to an embodiment of the present disclosure;

[0035] Figure 8 This is a process diagram illustrating the manufacturing process of a display structure according to an embodiment of this disclosure;

[0036] Figure 9 This is a flowchart illustrating the fabrication process of a display structure according to an embodiment of this disclosure;

[0037] Figure 10 This is a process diagram of a display panel manufacturing process according to an embodiment of the present disclosure;

[0038] Figure 11 This is a process diagram of a display panel manufacturing process according to an embodiment of the present disclosure;

[0039] Figure 12 for Figure 6 Another connection diagram between the central drive unit and the binding area;

[0040] Figure 13 for Figure 5 A schematic diagram illustrating a connection between the drive unit and the binding area;

[0041] Figure 14 for Figure 5 Another connection diagram between the central drive unit and the binding area;

[0042] Figure 15 This is a schematic diagram of a display panel manufacturing process according to an embodiment of the present disclosure;

[0043] Figure 16 This is a schematic diagram of a display panel manufacturing process according to an embodiment of the present disclosure. Detailed Implementation

[0044] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0045] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0046] Figure 1 This is a schematic diagram of the display structure described in an embodiment of this disclosure. Figure 2 This is a schematic diagram showing the positional relationship between the first plane and the second plane in an embodiment of this disclosure. Figure 3 This is a schematic cross-sectional view of the driving layer according to an embodiment of this disclosure. Figure 4 for Figure 1 For the top view, please refer to... Figures 1 to 4 This disclosure provides a display structure 100, including:

[0047] Light-emitting element 00 is located on the first plane P1;

[0048] The driving layer 20 includes a driving part 21, which is used to drive the light-emitting element 00 to emit light. The driving layer 20 is located on the second plane P2, and the first plane P1 intersects with the second plane P2.

[0049] Specifically, the display structure 100 includes a light-emitting element 00 and a driving layer 20. The light-emitting element 00 is located on a first plane P1, and the driving layer 20 is located on a second plane P2 intersecting the first plane P1 where the light-emitting element 00 is located. The driving layer 20 includes a driving part 21, which is located on the second plane P2. The driving part 21 is used to drive the light-emitting element 00 on the first plane P1 to emit light. When this display structure 100 is applied to a display product, the first plane P1 where the light-emitting element 00 is located is usually a plane parallel to the light-emitting surface of the display product. Thus, the light-emitting element 00 and the driving layer 20 are... When layers 20 are respectively disposed on two different intersecting planes, it is beneficial to reduce the area occupied by the orthographic projection of the driving unit 21 on the first plane P1. In this way, the area of ​​the orthographic projection of the light-emitting element 00 and the driving unit 21 connected to the light-emitting element 00 on the first plane P1 can be reduced, which reduces the problem that the pixels cannot be further densely arranged due to the large area occupied by the orthographic projection of the driving unit 21 on the first plane P1. Therefore, it is beneficial to increase the arrangement density of the light-emitting element 00 on the first plane P1, and to improve the pixel density of the display product when the display structure 100 is applied to the display product.

[0050] It should be noted that, Figure 1 This disclosure only illustrates the relative positional relationship between the light-emitting element 00 and the driving layer 20, and does not limit the actual shape, color, or size of the light-emitting element 00. Figure 1 The description uses only a red light-emitting element 00 as an example, but the display structure 100 of this disclosure is also applicable to light-emitting elements of other colors. In addition, the structure of the driving layer 20 and the driving part 21 in the driving layer 20 is only schematic and does not limit their actual size or actual film structure.

[0051] Please refer to Figure 2 This disclosure provides a display structure 100 in which the angle α between the first plane P1 and the second plane P2 is greater than 0° and less than or equal to 90°.

[0052] Specifically, the display structure 100 includes a light-emitting element 00 located on a first plane P1 and a driving layer 20 located on a second plane P2. The angle α between the first plane P1 and the second plane P2 is greater than 0° and less than or equal to 90°. Optionally, the angle α between the first plane P1 and the second plane P2 can be 10°, 15°, 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55°, 60°, 65°, 70°, 75°, 80°, 85°, 90°, etc., which are not listed here. It is sufficient that the angle α between the first plane P1 and the second plane P2 is greater than 0° and less than or equal to 90°. This is a preferred embodiment of the present disclosure. In this configuration, the angle α between the first plane P1 and the second plane P2 is 90°. At this time, the first plane P1 and the second plane P2 are perpendicular. That is, the first plane P1, where the light-emitting element 00 is located, serves as the light-emitting surface of the display structure 100 for display. The second plane P2, where the driving part 21, which drives the light-emitting element 00 to emit light, is located, is perpendicular to the first plane P1. Thus, the angle α between the first plane P1 and the second plane P2 is closely related to the area of ​​the orthographic projection of the driving part 21 on the first plane P1. The closer the angle α is to 90°, the smaller the area of ​​the orthographic projection of the driving part 21 on the first plane P1. This is more conducive to reducing the area occupied by the driving part 21 on the first plane P1 and more conducive to improving the pixel arrangement density.

[0053] Please continue to refer to this. Figures 1 to 4 The present disclosure provides a display structure 100, wherein the driving layer 20 further includes a first metal layer 22 located on one side of the driving portion 21 along a first direction D1, and a metal portion 23 located on one side of the driving portion 21 along a second direction D2.

[0054] The first direction D1 is perpendicular to the second plane P2, and the second direction D2 is perpendicular to the first plane P1;

[0055] Along the second direction D2, the metal part 23 is located between the first plane P1 and the driving part 21; the first metal layer 22 includes a first signal line 221, which is electrically connected to the metal part 23, and the light-emitting element 00 is electrically connected to the driving part 21 through the metal part 23 and the first signal line 221.

[0056] Specifically, in one optional embodiment provided in this disclosure, the display structure 100 includes a light-emitting element 00 and a driving layer 20. The light-emitting element 00 is located on a first plane P1, and the driving layer 20 is located on a second plane P2. The first plane P1 and the second plane P2 intersect, and a second direction D2 is perpendicular to the first plane P1 and the second plane P2. The driving layer 20 includes a driving portion 21, a first metal layer 22, and a metal portion 23. The first metal layer 22 is located on one side of the driving portion 21 along the first direction D1 and extends along the second direction D2 toward the first plane P1. The metal portion 23 is located on the side of the driving portion 21 along the second direction D2 close to the first plane P1. The first metal layer 22 includes a first signal trace 221. Optionally, the first signal trace 221 extends along the second direction D2 to connect the driving portion 21 and the metal portion 23. The metal portion 23 extends along the second direction D2. The light-emitting element 00 on D2 is electrically connected to the first plane P1. The light-emitting element 00 is electrically connected to the driving unit 21 through the metal part 23 and the first signal trace 221 electrically connected to the metal part 23. Thus, by providing the first metal layer 22 electrically connected to the driving unit 21 in the first direction D1 and the metal part 23 located between the first plane P1 and the driving unit 21 in the second direction D2 on the driving layer 20, the electrical signal of the driving unit 21 on the second plane P2 can be transmitted to the light-emitting element 00 on the first plane P1 through the first metal layer 22 and the metal part 23, ensuring the normal display of the light-emitting element 00. By providing the metal part 23 on the side of the driving unit 21 and introducing the first metal layer 22 to connect the metal part 23 and the driving unit 21, the transmission of signals from the driving unit 21 located on the second plane P2 to the light-emitting element 00 located on the first plane P1 is realized.

[0057] It should be noted that the metal part 23 includes a first metal part 231 and a second metal part 232 that are respectively connected to the cathode and anode of the light-emitting element 00. Preferably, the first metal part 231 and the second metal part 232 are separated by an insulating layer 24 to prevent short circuits. The length and extension angle of the first metal part 231 and the second metal part 232 in the figures of this disclosure are only schematic and do not represent the actual length and extension angle in the actual display panel. The specific length and extension angle can be set according to the actual screen structure.

[0058] It should be noted that the connection angle of the first signal trace 221 in the illustration is only schematic and does not represent the actual connection angle of the first signal trace 221 in the actual display panel. The specific angle can be set according to the actual screen structure. Preferably, an insulating layer 24 is provided between two adjacent first signal traces 221 to prevent short circuit.

[0059] Please continue to refer to this. Figures 1 to 4This disclosure provides a display structure 100 in which the first signal trace 221 and the metal part 23 are made of the same material and manufactured in the same process.

[0060] It is understood that the first signal trace 221 is located on the surface of the driving part 21 on the first direction D1, and the first signal trace 221 extends to the metal part 23 along the second direction D2 and is electrically connected to the metal part 23. The metal part 23 is located on the side of the first signal trace 221 along the first direction D1, and is located between the first plane P1 and the driving part 21 along the second direction D2. In an optional embodiment provided in this disclosure, the first signal trace 221 and the metal part 23 are made of the same material and are manufactured in the same process. For example, the first signal trace 221 is manufactured by physical vapor deposition, and the metal part 23 with a certain thickness is formed by repeated physical vapor deposition using the same material as the first signal trace 221. In this way, the first signal trace 221 and the metal part 23 are manufactured in the same process using the same material, which can reduce the process steps and improve the manufacturing efficiency of the driving layer 20 while ensuring electrical conduction between the two.

[0061] Please continue to refer to this. Figures 1 to 4 This disclosure provides a display structure 100 in which an insulating layer 24 exists between a metal part 23 and a driving part 21 along a second direction D2, and the insulating layer 24 abuts against a first metal layer 22 along a first direction D1; the thickness of the insulating layer 24 in the first direction D1 is less than the thickness of the metal part 23 in the first direction D1.

[0062] Specifically, in one optional embodiment provided in this disclosure, along the second direction D2, i.e., the direction perpendicular to the first plane P1, the metal part 23 is located between the first plane P1 and the driving part 21. An insulating layer 24, which can be an organic layer, also exists between the metal part 23 and the driving part 21. Along the first direction D1, the insulating layer 24 abuts against the first metal layer 22, and the thickness of the insulating layer 24 is less than the thickness of the metal part 23. That is, in the second direction D2, the metal part 23 is located between the first plane P1 and the insulating layer 24, and the insulating layer 24 is located between the metal part 23 and the driving part 21. Along the first direction D1, i.e., the direction perpendicular to the second plane P2, the metal part 23 and the driving part 21 are in contact. The first metal layer 22 abuts against the first metal layer 22, the insulating layer 24 abuts against the first metal layer 22, and the driving part 21 abuts against the first metal layer 22. The metal part 23, the insulating layer 24, and the driving part 21 are located on the same side of the first metal layer 22, and the thickness of the insulating layer 24 in the first direction D1 is less than the thickness of the metal part 23 in the first direction D1. Thus, the metal part 23, the insulating layer 24, and the driving part 21 can be located on the second plane P2 at the same time. Based on the electrical connection between the metal part 23 and the driving part 21 through the first metal layer 22, a protective layer can be formed by providing the insulating layer 24 between the metal part 23 and the driving part 21 along the second direction D2, so as to avoid the metal part 23 and the driving part 21 from directly contacting each other and causing a short circuit.

[0063] Please continue to refer to this. Figures 1 to 4 This disclosure provides a display structure 100, wherein the driving layer 20 includes a second metal layer 25. Along the first direction D1, the second metal layer 25 is located on the side of the driving part 21 away from the first metal layer 22 and is electrically connected to the driving part 21.

[0064] The second metal layer 25 includes a second signal trace 251, the extension direction of which is opposite to that of the first signal trace 221. It should be noted that the extension directions of the first signal trace 221 and the second signal trace 251 are relative to the driving unit 21. The first signal trace 221 can be considered as extending towards a first side of the driving unit 21 after being electrically connected to it, and the second signal trace 251 can be considered as extending towards a second side of the driving unit 21 after being electrically connected to it. The first side and the second side are opposite sides of the driving unit 21 along the second direction D2.

[0065] Specifically, in one optional embodiment provided in this disclosure, the driving layer 20 includes a metal portion 23, a first metal layer 22, an insulating layer 24, a driving portion 21, and a second metal layer 25. Along a first direction D1, i.e., a direction perpendicular to the second plane P2, the first metal layer 22 is located on one side of the driving portion 21, and the second metal layer 25 is located on the side of the driving portion 21 opposite to the first metal layer 22, and the second metal layer 25 is electrically connected to the driving portion 21. The first metal layer 22 includes a first signal trace 221, which extends along the second direction D2 toward the metal portion 23. The second metal layer 25 includes a second signal trace 251. The extension direction of the first signal trace 251 is opposite to that of the first signal trace 221. That is, the first signal trace 221 is parallel to the second signal trace 251. The first signal trace 221 and the second signal trace 251 are parallel to the second direction D2, and the extension direction of the second signal trace 251 is opposite to that of the first signal trace 221. In this way, by providing the first metal layer 22 and the second metal layer 25 on both sides of the driving part 21 along the first direction D1, and the extension directions of the first signal trace 221 and the second signal trace 251 are parallel and opposite, the thickness of the driving layer 20 can be reduced as much as possible while ensuring the transmission of electrical signals, which is beneficial to the thinning of the display structure 100.

[0066] It should be noted that the number and connection angle of the second signal traces 251 shown in the illustrations of this disclosure are only schematic and do not represent the actual number and connection angle of the second signal traces in the actual display panel. The specific number and connection angle can be set according to the actual screen structure. Preferably, an insulating layer 24 is provided between two adjacent second signal traces 251 to prevent short circuits.

[0067] Please continue to refer to this. Figures 1 to 4 This disclosure provides a display structure 100, in which the driving layer 20 further includes a bonding region 26. Along the second direction D2, the bonding region 26 is located on the side of the driving part 21 away from the metal part 23. The second signal trace 251 in the second metal layer 25 extends to the bonding region 26 and is electrically connected to the bonding region 26.

[0068] Specifically, in one optional embodiment provided in this disclosure, the driving layer 20 includes a metal portion 23, a first metal layer 22, an insulating layer 24, a driving portion 21, a second metal layer 25, and a bonding area 26. Along the second direction D2, the metal portion 23 is located on one side of the first plane P1, the insulating layer 24 is located on the side of the metal portion 23 facing away from the first plane P1, and the insulating layer 24 is also located between the metal portion 23 and the driving portion 21. The bonding area 26 is located on the side of the driving portion 21 facing away from the metal portion 23. A first signal trace 221 extends along the second direction D2 to the metal portion 23, and a second signal trace 251 connects to the first signal trace 221. Parallel and extending in opposite directions, the second signal trace 251 extends along the second direction D2 to the bonding area 26. The second signal trace 251 is electrically connected to the bonding area 26. Thus, the bonding area 26 is located on the side of the driving part 21 away from the metal part 23. The electrical signal of the bonding area 26 can be transmitted to the driving part 21 through the second signal trace 251, and then the electrical signal of the driving part 21 can be transmitted to the metal part 23 through the first signal trace 221, and finally transmitted to the light-emitting element 00. When the first plane P1 where the light-emitting element 00 is located intersects with the second plane P2 where the driving part 21 is located, normal transmission of electrical signals is achieved.

[0069] Please continue to refer to this. Figures 1 to 4 This disclosure provides a display structure 100, in which a first planarization layer 80 is provided on the side of the second metal layer 25 away from the driving part 21 along the first direction D1, and the first planarization layer 80 covers the metal part 23, the insulating layer 24 and the second metal layer 25 along the second direction D2.

[0070] Specifically, along the first direction D1, that is, the direction perpendicular to the second plane P2, a first planarization layer 80 is also provided on one side of the second metal layer 25. The first planarization layer 80 is located on the side of the second metal layer 25 away from the driving part 21. Along the second direction D2, that is, the direction from the second metal layer 25 to the metal part 23, the first planarization layer 80 sequentially covers the second metal layer 25, the insulating layer 24 and the metal part 23. In this way, by providing the first planarization layer 80 on the side of the second metal layer 25 away from the driving part 21, the second metal layer 25, the insulating layer 24 and the metal part 23 can be covered and insulated, which is beneficial to the planarization of the driving layer 20.

[0071] Please continue to refer to this. Figures 1 to 4 This disclosure provides a display structure 100, in which a second planarization layer 70 is provided on the side of the first metal layer 22 away from the insulating layer 24 along the first direction D1, and the second planarization layer 70 covers the first metal layer 22 along the second direction D2.

[0072] Specifically, along the first direction D1, that is, the direction perpendicular to the second plane P2, a second planarization layer 70 is also provided on one side of the first metal layer 22. The second planarization layer 70 is located on the side of the first metal layer 22 away from the drive unit 21. Along the second direction D2, the second planarization layer 70 covers the first metal layer 22. Optionally, along the second direction D2, the second planarization layer 70 covers the side of the first metal layer 22 and the side of the second metal layer 25 away from the first planarization layer 80. In this way, by providing the second planarization layer 70 on the side of the first metal layer 22 away from the drive unit 21, the first metal layer 22 and the second metal layer 25 can be covered and insulated, which is beneficial to the planarization of the drive layer 20.

[0073] Please continue to refer to this. Figures 1 to 4 This disclosure provides a display structure 100, wherein a first plane P1 further has an encapsulation layer 10, and the encapsulation layer 10 surrounds the light-emitting element 00.

[0074] Specifically, the light-emitting element 00 is located on a first plane P1, which also includes an encapsulation layer 10. The encapsulation layer 10 surrounds the light-emitting element 00 and is used to encapsulate it. Optionally, the encapsulation layer 10 is a black light-shielding material layer. Thus, by setting the encapsulation layer 10 around the light-emitting element 00, the light-emitting element 00 can be protected while preventing color mixing between light-emitting elements 00, ensuring the display effect of the display structure 100. It should be noted that the encapsulation layer is mainly used to cover the bonding layer corresponding to the light-emitting element to avoid the problem of reflection from the bonding layer. In practical applications, the encapsulation layer can also be used to cover the sides of the light-emitting element depending on the luminous efficiency of the light-emitting element. For example, the luminous brightness of a light-emitting element with higher luminous efficiency is greater than that of a light-emitting element with lower luminous efficiency. If uniformity of luminous brightness over a wide viewing angle is required, the encapsulation layer can be used to cover at least part of the sides of the light-emitting element with higher luminous efficiency to reduce the luminous brightness of this part of the light-emitting element over a wide viewing angle. If the overall luminous brightness of the product is required, it is not necessary to use the encapsulation layer to block the sides of the light-emitting element to ensure the light output of each light-emitting element.

[0075] Figure 5 This is a schematic diagram of a display panel arrangement according to an embodiment of the present disclosure. Figure 6 This is a schematic diagram of a display panel arrangement according to an embodiment of the present disclosure. Figure 7 This is a schematic diagram of a display panel arrangement according to an embodiment of the present disclosure. Please refer to it. Figures 1 to 7This disclosure provides a display panel 200, which is formed by stacking the display structures 100 as described above in the same direction. The second planes P2 corresponding to different display structures 100 in the same display panel 200 are located on the same plane, or the second planes P2 corresponding to different display structures 100 in the same display panel 200 are parallel to each other. The light-emitting elements 00 corresponding to different display structures 100 in the same display panel 200 are all located on the first plane P1.

[0076] Specifically, this disclosure provides a display panel 200, which includes a plurality of display structures 100, which are stacked sequentially along the same direction, for example, Figure 5 As shown, multiple display structures 100 are stacked sequentially along the third direction D3. At this time, the second plane P2 corresponding to different display structures 100 in the same display panel 200 is located on the same plane, and the light-emitting elements 00 corresponding to different display structures 100 in the same display panel 200 are located on the same plane. Figure 6 As shown, multiple display structures 100 are stacked sequentially along the first direction D1. At this time, the second planes P2 corresponding to different display structures 100 in the same display panel 200 are parallel to each other, and the light-emitting elements 00 corresponding to different display structures 100 in the same display panel 200 are located on the same plane. That is to say, the light-emitting elements 00 corresponding to different display structures 100 in the same display panel 200 are all located on the first plane P1, and the driving layers 20 corresponding to different display structures 100 in the same display panel 200 are all located on the second plane P2 or are parallel to each other. In this way, the display panel 200 formed by stacking multiple display structures 100 sequentially along the same direction can meet different display requirements and increase the application scenarios of the display panel 200.

[0077] Figure 5 and Figure 6 The display panel shown is presented as a strip structure and can be regarded as a strip display panel. In an optional embodiment provided in this disclosure, the above-mentioned display panel 200 can be used at the splicing seam of the splicing display device to improve the poor display at the splicing seam of the splicing device.

[0078] It should be noted that this disclosure only illustrates the light-emitting elements 00 on the display panel 200 and does not limit the actual number and color of the light-emitting elements 00 included on the display panel 200. This disclosure only shows a scheme where the light-emitting elements 00 include red, green, and blue light-emitting elements, but it is not limiting. In some other embodiments of this disclosure, the light-emitting elements 00 may be set to other colors as needed, or may include light-emitting elements 00 of other colors in addition to red, green, and blue light-emitting elements. Of course, the arrangement of the light-emitting elements 00 on the display panel 200 is only illustrative and may be set to other arrangements as needed.

[0079] Please refer to Figure 7 This disclosure provides a display panel 300, which is formed by stacking the display structures 100 as described above. The second planes P2 corresponding to the driving layers 20 in different display structures 100 in the same display panel 300 are parallel or located on the same second plane P2. The light-emitting elements 00 corresponding to different display structures 100 in the same display panel 300 are all located on the first plane P1.

[0080] It should be noted that the second planes P2 corresponding to the multiple display structures 100 arranged in sequence along the direction perpendicular to the second plane P2 are parallel to each other, and the second planes P2 corresponding to the multiple display structures 100 arranged in sequence along the extension direction of the second plane P2 are located on the same second plane P2.

[0081] Specifically, this disclosure provides a display panel 300, which is formed by stacking multiple display structures 100. It can be understood that in the display panel 300 formed by stacking multiple display structures 100, the first plane P1 corresponding to different display structures 100 is located on the same plane, and the second plane P2 corresponding to different display structures 100 is parallel or located on the same second plane P2. That is to say, the light-emitting elements 00 corresponding to different display structures 100 in the same display panel 300 are all located on the first plane P1, and the second plane P2 where the driving layers 20 corresponding to different display structures 100 are located in the same display panel 300 are parallel to each other or located on the same second plane P2. In this way, the display panel 300 formed by stacking multiple display structures 100 can be used at the splicing seam of the splicing device to improve the display effect at the splicing seam, as mentioned above, and can also be self-assembled into an independent display panel 300 for independent display, increasing the application scenarios.

[0082] It should be noted that the pixel density of the light-emitting elements 00 on the first plane P1 in the display panel 300 can be further improved by reducing the spacing. Since the orthographic projection area of ​​the driving part 21 on the first plane P1 is reduced, it may even be less than or equal to the orthographic projection area of ​​the corresponding light-emitting element 00 on the first plane P1. This reduces the overall orthographic projection area of ​​the light-emitting element 00 and the driving layer 20 on the first plane P1. Therefore, the spacing of the light-emitting elements 00 on the first plane P1 can be further reduced to improve the pixel density.

[0083] It should be noted that this disclosure only illustrates one splicing structure of the display panel 300 and does not limit the actual shape of the display panel. In other embodiments of this disclosure, the display panel may also be embodied in other shapes besides rectangle, such as rhombus, square, etc.

[0084] Figure 8 This is a manufacturing process diagram of a display structure according to an embodiment of the present disclosure. Figure 9 This is a flowchart illustrating the fabrication process of a display structure according to an embodiment of this disclosure. Please refer to it. Figures 1 to 9 This disclosure provides a method for manufacturing a display structure 100, used to manufacture the display structure 100 as described above, including:

[0085] S1: Take a glass substrate 01, form a first planarization layer 80 on the glass substrate 01, and form a metal part 23 corresponding to the driving part 21 in the driving layer 20 on the first planarization layer 80 by multiple physical vapor depositions; It should be noted that, in addition to the metal part 23, before the second planarization layer 70 is made, the fabrication of other metal structures in the driving layer 20 is also involved, such as the first metal layer 22, the second metal layer 25, etc.

[0086] S2: A second planarization layer 70 is formed on the driving layer 20, and a glass substrate 01 is covered on the second planarization layer 70;

[0087] S3: On one side of the metal part 23, remove part of the edge in a direction perpendicular to the plane where the glass substrate 01 is located;

[0088] S4: Stand the glass substrate 01 upright with the side with the removed edge facing up, and form a bonding layer 27 on one side of the exposed metal part 23.

[0089] S5: A light-emitting element 00 is covered on the bonding layer 27, and the cathode and anode of the light-emitting element 00 are electrically connected to the bonding layer 27;

[0090] S6: Encapsulate the light-emitting element 00 and the bonding layer 27;

[0091] S7: Cut the encapsulation layer 10 and laser peel off the glass substrate 01.

[0092] Specifically, this disclosure also provides a method for manufacturing a display structure 100, which includes the following steps:

[0093] In step S1, a glass substrate 01 is taken, and a first planarization layer 80 is formed by coating a PI (Polyimide Film) or other protective layer on the surface of the glass substrate 01. Then, a second metal layer 25 is formed on the side of the first planarization layer 80 away from the glass substrate 01 by physical vapor deposition. A driving portion 21 is formed on the side of the second metal layer 25 away from the first planarization layer 80. Along a direction perpendicular to the glass substrate 01, the driving portion 21 and the second metal layer 25 at least partially overlap. Along a direction parallel to the glass substrate 01, an insulating layer 24 is formed on one side of the driving portion 21. The insulating layer 24 is located on the side of the first planarization layer 80 away from the glass substrate 01. On the side away from the glass substrate 01, along a direction perpendicular to the glass substrate 01, the thickness of the insulating layer 24 is equal to the thickness of the driving portion 21. A first metal layer 22 is formed by physical vapor deposition on the side of the driving portion 21 away from the second metal layer 25. Along a direction parallel to the glass substrate 01, the first metal layer 22 extends to the side of the insulating layer 24 away from the driving portion 21 to form a metal portion 23. Thus, by forming a driving layer 20 on the first planarization layer 80, the driving layer 20 includes the driving portion 21, the second metal layer 25, the first metal layer 22, the insulating layer 24, and the metal portion 23, an electrical connection between the driving portion 21 and the metal portion 23 is achieved.

[0094] In step S1, the metal portion 23 is subjected to repeated physical vapor deposition to increase its thickness. Along the direction perpendicular to the plane of the glass substrate 01, the thickness of the metal portion 23 is greater than the thickness of the insulating layer 24.

[0095] In step S2, a second planarization layer 70 is formed on the side of the driving layer 20 away from the first planarization layer 80 along a direction perpendicular to the glass substrate 01. The second planarization layer 70 covers the first metal layer 22 along a direction parallel to the glass substrate 01, and then covers the glass substrate 01 on the side of the second planarization layer 70 away from the first metal layer 22.

[0096] In step S3, the structure made in step S3 is cut along a direction perpendicular to the plane of the glass substrate 01 on one side of the metal part 23 to remove the edge portion and obtain a metal part 23 with a flat cross-section.

[0097] In step S4, the structure cut in step S3 is stood upright with the cut surface of the metal part 23 facing upward, and a bonding layer 27 is formed on the end face of the metal part 23.

[0098] In step S5, the light-emitting element 00 is covered on the side of the bonding layer 27 away from the metal part 23, and the cathode and anode of the light-emitting element 00 are electrically connected to the bonding layer 27.

[0099] In step S6, the light-emitting element 00 and the bonding layer 27 are encapsulated along a direction perpendicular to the glass substrate 01, and the encapsulation layer 10 surrounds the light-emitting element 00.

[0100] In step S7, the encapsulation layer 10 is cut along a direction parallel to the glass substrate 01, and the glass substrate 01 is peeled off by laser to obtain the desired display structure 100.

[0101] Please continue to refer to this. Figures 1 to 9 This disclosure provides a method for manufacturing a display structure 100, wherein the structure manufactured in step S1 includes:

[0102] Along a direction parallel to the plane of the driving layer 20, the driving layer 20 includes a driving portion 21 and an insulating layer 24 located on one side of the driving portion 21. Along the first direction D1, the thickness of the insulating layer 24 is less than the thickness of the metal portion 23. The driving layer 20 includes a first metal layer 22. Along the first direction D1, the first metal layer 22 is located on the side of the driving portion 21 away from the first planarization layer 80. The first metal layer 22 extends toward the insulating layer 24 to the side of the insulating layer 24 away from the driving portion 21, forming the metal portion 23.

[0103] The driving layer 20 includes a second metal layer 25. Along the first direction D1, the second metal layer 25 is located on the side of the driving portion 21 facing the first planarization layer 80. Along the second direction D2, the second metal layer 25 extends toward the side opposite to the insulating layer 24 to be electrically connected to the bonding area 26.

[0104] Specifically, the drive layer 20 includes a drive portion 21, an insulating layer 24, a first metal layer 22, a second metal layer 25, and a metal portion 23. Along the first direction D1, the first metal layer 22 and the second metal layer 25 are located on opposite sides of the drive portion 21. The side of the first metal layer 22 away from the drive portion 21 forms a second planarization layer 70, and the side of the second metal layer 25 away from the drive portion 21 forms a first planarization layer 80. The drive portion 21, the metal portion 23, and the insulating layer 24 are located on the same side of the first metal layer 22. The first metal layer 22 extends along the second direction D2 through the insulating layer 24 to the metal portion 23, and the second metal layer 25 extends along the second direction D2 to be electrically connected to the bonding area 26.

[0105] Figure 10 This is a process diagram of a display panel manufacturing method according to an embodiment of the present disclosure. Figure 11 This is a process diagram of a display panel manufacturing method according to an embodiment of this disclosure. Please refer to it. Figures 1 to 11 This disclosure provides a method for manufacturing a display panel 200, including:

[0106] The display structures 100 are sequentially spliced ​​in the same direction, such that the second planes P2 corresponding to different display structures 100 in the same display panel 200 are located in the same plane, or the second planes P2 corresponding to different display structures 100 are parallel to each other; the light-emitting elements 00 corresponding to different display structures 100 in the same display panel 200 are all located in the first plane P1.

[0107] In one alternative embodiment provided in this disclosure, please refer to Figure 10 The display panel 200 is obtained by sequentially splicing the display structure 100 along the first direction D1, or, please refer to Figure 11 The display structure 100 is sequentially spliced ​​along the third direction D3 to obtain a display panel, wherein the first direction D1 intersects with the third direction D3, both the first direction D1 and the third direction D3 are parallel to the first plane P1, and both the first direction D1 and the third direction D3 are perpendicular to the second direction D2; thus, display panels 200 with different relative positional relationships to the second plane P2 can be obtained through different arrangement methods to meet different display needs.

[0108] Figure 12 for Figure 6 Another connection diagram between the drive unit and the binding area. Figure 13 for Figure 5 A schematic diagram of a connection between the drive unit and the binding area. Figure 14 for Figure 5 Another connection diagram between the drive unit and the binding area is shown below. Figures 1 to 14 This disclosure provides a method for manufacturing a display panel, wherein the second metal layer 25 of different display structures 100 is bonded to their respective corresponding bonding areas 26 and then stacked sequentially to form a display panel 200, or the different display structures 100 are stacked sequentially and then bonded to the same bonding area 26.

[0109] Specifically, in one optional embodiment provided in this disclosure, the second metal layers 25 of different display structures 100 can be first bound to their respective binding areas 26, and then stacked sequentially in the same direction to form a display panel 200. At this time, the second planarization layer 70 corresponding to each display structure 100 only covers the first metal layer 22 and does not cover the second metal layer 25. In another optional embodiment provided in this disclosure, the different display structures 100 can be first stacked sequentially in the same direction to form a display panel 200, and then the second metal layers 25 corresponding to each display structure 100 can be bound to the same binding area 26 in the display panel 200. At this time, the second planarization layer 70 corresponding to each display structure 100 covers both the first metal layer 22 and at least part of the second metal layer 25.

[0110] It should be noted that both of the above binding methods are applicable to the display panel 200 obtained by arranging the display structure 100 along the first direction D1, and both of the above binding methods are applicable to the display panel 200 obtained by arranging the display structure 100 along the third direction D3.

[0111] Preferably, such as Figure 13-14 As shown, the arrangement spacing between light-emitting elements 00 can be changed by controlling the fan-out spacing of the first metal layer 22 and the metal part 23, thereby increasing the pixel arrangement density of the display panel.

[0112] Figure 15 This is a schematic diagram illustrating a display panel manufacturing process according to an embodiment of the present disclosure. Figure 16 This is a schematic diagram of a display panel manufacturing process according to an embodiment of this disclosure. Please refer to it. Figures 1 to 16 This disclosure provides a method for manufacturing a display panel 300, including:

[0113] L1: Display structure 100 is sequentially spliced ​​along the first direction D1 to obtain a bar display unit;

[0114] L2: The bar display units are sequentially spliced ​​along the third direction D3 to obtain the display panel 300;

[0115] The third direction D3 intersects with the first direction D1, and the third direction D3 is perpendicular to the second direction D2;

[0116] In this case, the second plane P2 corresponding to the driving layer 20 in different display structures 100 in the same display panel 300 is parallel, and the light-emitting elements 00 corresponding to different display structures 100 in the same display panel 300 are all located in the first plane P1.

[0117] Specifically, the first direction D1 is parallel to the first plane P1. The display structure 100 is sequentially spliced ​​along the direction parallel to the first plane P1 to obtain a bar display unit. Then, the bar display units are sequentially spliced ​​along the third direction D3 to obtain the display panel 300. The third direction D3 is parallel to the first plane P1 and intersects with the first direction D1. Thus, the light-emitting elements 00 in the obtained display panel 300 are all located in the first plane P1, and the second plane P2 corresponding to the driving layer 20 in the display panel 300 are all parallel to each other.

[0118] It should be noted that the “bar display unit” mentioned in the text can be understood as the display panel 200 formed by arranging the different display structures 100 in the same direction as described above.

[0119] In summary, the display structure, display panel, and manufacturing method disclosed herein include a light-emitting element and a driving layer. The light-emitting element is located on a first plane, and the driving layer is located on a second plane intersecting the first plane. The driving layer includes a driving part located on the second plane, which is used to drive the light-emitting element on the first plane to emit light. By separately arranging the light-emitting element and the driving layer on two different intersecting planes, the problem of excessively large projected area on the first plane due to the large area occupied by the driving layer can be reduced, thus preventing further pixel densification and increasing the density of the light-emitting elements on the first plane. Furthermore, the angle between the first and second planes is closely related to the area occupied by the projected area of ​​the driving part on the first plane; the larger the angle, the smaller the projected area of ​​the driving part on the first plane. Setting the angle to be greater than 0° and less than or equal to 90° allows for flexible adjustment of the light-emitting element and the driving layer at various angles, improving the application range of the display structure. By placing the driving layer on... A first metal layer electrically connected to the driving unit in the first direction, and a metal portion located between the first plane and the driving unit in the second direction, can transmit electrical signals from the driving unit on the second plane to the light-emitting elements on the first plane, ensuring normal display of the light-emitting elements. By using the same material and manufacturing process for the first signal trace and the metal portion, the manufacturing process can be reduced while ensuring electrical conductivity between them. An insulating layer is formed between the metal portion and the driving unit along the second direction, creating a protective layer to prevent short circuits caused by direct contact between the metal portion and the driving unit. The metal portion, along with the parallel first and second metal layers, minimizes the driving layer thickness while enabling electrical signal transmission, facilitating dense packing of the light-emitting elements. The second and first planarization layers provide coverage and insulation protection for the driving layer, promoting planarization. An encapsulation layer protects the light-emitting elements and prevents cross-color mixing between them, ensuring the display effect of the display structure.

[0120] A display panel formed by stacking multiple display structures sequentially in the same direction can meet different display needs and increase the application scenarios of the display panel. The display panel formed by stacking multiple display structures can not only be used at the seams of spliced ​​products to improve the display effect, but can also be stacked and combined into independent display panels to achieve independent display functions, further increasing the application scenarios. The connection method between the driving part and the binding area corresponding to different display structures in the display panel can be flexibly set according to the actual situation.

[0121] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0122] The above description is merely a specific embodiment of this disclosure, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for manufacturing a display structure, characterized in that, include: S1: Take a glass substrate, form a first planarization layer on the glass substrate, and form a metal part corresponding to the driving part in the driving layer on the first planarization layer by multiple physical vapor deposition. S2: A second planarization layer is formed on the driving layer, and a glass substrate is covered on the second planarization layer; S3: On one side of the metal part, remove part of the edge in a direction perpendicular to the plane where the glass substrate is located; S4: Stand the glass substrate upright with the side with the removed edge facing upward, and form a bonding layer on one side of the exposed metal portion; S5: A light-emitting element is covered on the bonding layer, and the cathode and anode of the light-emitting element are electrically connected to the bonding layer; S6: Encapsulate the light-emitting element and the bonding layer; S7: Cut the encapsulation layer and laser peel off the glass substrate; The light-emitting element is located on a first plane, and the driving layer is located on a second plane, with the first plane intersecting the second plane.

2. The method for manufacturing the display structure as described in claim 1, characterized in that, In step S1, Along a direction parallel to the plane of the driving layer, the driving layer includes a driving portion and an insulating layer located on one side of the driving portion. Along a first direction, the thickness of the insulating layer is less than the thickness of the metal portion. The driving layer includes a first metal layer. Along a first direction, the first metal layer is located on the side of the driving portion away from the first planarization layer. The first metal layer extends toward the insulating layer to the side of the insulating layer opposite to the driving portion, forming a metal portion. The driving layer includes a second metal layer along a first direction, the second metal layer being located on the side of the driving portion opposite to the second planarization layer; Along the second direction, the second metal layer extends toward the side opposite to the insulating layer to be electrically connected to the bonding area.

3. A display structure, characterized in that, Manufactured using the method for manufacturing the display structure as described in any one of claims 1 or 2, comprising: A light-emitting element, wherein the light-emitting element is located on a first plane; The driving layer includes a driving part for driving the light-emitting element to emit light, and the driving layer is located on a second plane, wherein the first plane intersects with the second plane; The driving part overlaps with the light-emitting element in a direction perpendicular to the first plane.

4. The display structure according to claim 3, characterized in that, The angle between the first plane and the second plane is greater than 0° and less than or equal to 90°.

5. The display structure according to claim 3, characterized in that, The driving layer further includes a first metal layer located on one side of the driving portion along a first direction, and a metal portion located on one side of the driving portion along a second direction; The first direction is perpendicular to the second plane, and the second direction is perpendicular to the first plane; Along the second direction, the metal portion is located between the first plane and the driving portion; the first metal layer includes a first signal trace, the first signal trace is electrically connected to the metal portion, and the light-emitting element is electrically connected to the driving portion through the metal portion and the first signal trace.

6. The display structure according to claim 5, characterized in that, The first signal trace and the metal part are made of the same material and manufactured in the same process.

7. The display structure according to claim 5, characterized in that, Along the second direction, an insulating layer exists between the metal part and the driving part; along the first direction, the insulating layer abuts against the first metal layer. The thickness of the insulating layer in the first direction is less than the thickness of the metal portion in the first direction.

8. The display structure according to claim 5, characterized in that, The driving layer includes a second metal layer. Along the first direction, the second metal layer is located on the side of the driving part away from the first metal layer and is electrically connected to the driving part. The second metal layer includes a second signal trace, the extension direction of which is opposite to that of the first signal trace.

9. The display structure according to claim 8, characterized in that, The driving layer further includes a bonding area along a second direction, the bonding area being located on the side of the driving portion away from the metal portion, and a second signal trace in the second metal layer extending to the bonding area and electrically connected to the bonding area.

10. The display structure according to claim 9, characterized in that, Along the first direction, a first planarization layer is provided on the side of the second metal layer opposite to the driving part, and the first planarization layer covers the metal part, the insulating layer, and the second metal layer along the second direction.

11. The display structure according to claim 10, characterized in that, Along a first direction, a second planarization layer is provided on the side of the first metal layer opposite to the insulating layer, and the second planarization layer covers the first metal layer along a second direction.

12. The display structure according to claim 3, characterized in that, The first plane also has an encapsulation layer that surrounds the light-emitting element.

13. A display panel, characterized in that, The display structure described in any one of claims 3-12 is stacked sequentially in the same direction, and the second planes corresponding to different display structures in the same display panel are located in the same plane, or the second planes corresponding to different display structures in the same display panel are parallel. The light-emitting elements corresponding to different display structures in the same display panel are all located on the first plane.

14. A display panel, characterized in that, The display is constructed by stacking the display structures as described in any one of claims 3-12, wherein the second planes corresponding to the driving layers of different display structures in the same display panel are parallel or located on the same second plane, and the light-emitting elements corresponding to different display structures in the same display panel are all located on the first plane.

15. A method for manufacturing a display panel, characterized in that, For manufacturing the display panel as described in claim 13, comprising: The display structures are sequentially spliced ​​along the same direction, such that the second planes corresponding to different display structures in the same display panel are located on the same plane, or such that the second planes corresponding to different display structures in the same display panel are parallel to each other; the light-emitting elements corresponding to different display structures in the same display panel are all located on the first plane.

16. The method for manufacturing a display panel as described in claim 15, characterized in that, The second metal layers of different display structures are bonded to their respective bonding areas and then stacked sequentially to form a display panel, or different display structures are stacked sequentially and then bonded to the same bonding area.

17. A method for manufacturing a display panel, characterized in that, For manufacturing the display panel as described in claim 14, comprising: L1: The display structure is sequentially spliced ​​along the first direction to obtain a bar display unit; L2: The bar display units are sequentially spliced ​​along a third direction to obtain a display panel; The third direction intersects with the first direction, and the third direction is perpendicular to the second direction; In this configuration, the second planes corresponding to the driving layers in different display structures within the same display panel are parallel, and the light-emitting elements corresponding to different display structures within the same display panel are all located on the first plane.

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