Display panel and display device

Abstract

The present application provides a display panel and a display device, wherein the display panel includes a spacer and a first substrate and a second substrate arranged opposite to each other, wherein a groove structure is arranged on the side of the first substrate facing the second substrate, and the groove structure includes a bottom wall. The spacer is arranged on the second substrate and partially abuts the first substrate, and the spacer has a first surface on the side facing the first substrate, and the first surface is at least partially spaced from the bottom wall, and in the thickness direction of the first substrate, the projection of the first surface and the groove structure at least partially overlap. The first surface of the embodiment of the present application will not be completely in contact with the bottom wall. Part of the structure in the first surface will be exposed to the groove structure, so that the first surface will not be completely in contact with the first substrate. In this way, the friction between the spacer and the first substrate can be reduced, and the risk of the spacer being unable to rebound and reset due to excessive friction can be reduced, thereby improving the thickness uniformity between the first substrate and the second substrate, and improving the dark state uniformity of the display panel.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] With the advancement of science and technology, display devices have also developed accordingly, and people's requirements for display devices are getting higher and higher. However, existing display devices still have various problems, such as poor display uniformity in the dark state, which easily affects the user's viewing experience. Summary of the Invention

[0003] Embodiments of the present application provide a display panel and a display device, which can improve dark state uniformity.

[0004] In a first aspect, an embodiment of the present application provides a display panel, comprising a spacer and a first substrate and a second substrate arranged opposite to each other, wherein a groove structure is provided on a side of the first substrate facing the second substrate, and the groove structure includes a bottom wall.

[0005] The spacer is arranged on the second substrate and partially abuts the first substrate. The spacer has a first surface on the side facing the first substrate. The first surface is at least partially spaced from the bottom wall. In the thickness direction of the first substrate, the first surface at least partially overlaps with the projection of the groove structure.

[0006] In a second aspect, an embodiment of the present application provides a display device, comprising the display panel in any of the aforementioned embodiments.

[0007] The embodiments of the present application provide a display panel and a display device, wherein a spacer is arranged corresponding to a groove structure, the groove structure has a bottom wall, and the bottom wall is arranged relative to the first surface in the thickness direction, and there is a gap between the first surface and the bottom wall, so that the first surface does not completely contact the bottom wall. Part of the structure in the first surface will be exposed to the groove structure, so that the first surface will not completely abut against the first substrate. This can reduce the friction between the spacer and the first substrate, and reduce the risk that the spacer cannot rebound and reset due to excessive friction, improve the uniformity of the thickness between the first substrate and the second substrate, reduce the optical path difference caused by uneven thickness, and thus ensure the polarization uniformity of the polarizer to light, reduce the probability of light leakage, improve the dark state uniformity of the display panel, and enhance the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0009] Figure 1 is a structural diagram of a display panel provided in an embodiment of the present application;

[0010] Figure 2 Schematic diagram of the positional relationship between the first conductive portion and the spacer in region Q of a display panel provided by an embodiment of the present application;

[0011] Figure 3 1 is a schematic diagram of a cross-sectional structure of a display panel provided in an embodiment of the present application at position AA;

[0012] Figure 4 1 is a schematic diagram of a cross-sectional structure of another display panel provided in an embodiment of the present application at position AA;

[0013] Figure 5 1 is a schematic diagram of the positional relationship between the first conductive portion and the spacer in region Q of another display panel provided by an embodiment of the present application;

[0014] Figure 6 1 is a schematic diagram of a cross-sectional structure of another display panel provided in an embodiment of the present application at position BB;

[0015] Figure 7 1 is a schematic diagram of a cross-sectional structure of another display panel provided in an embodiment of the present application at position BB;

[0016] Figure 8 1 is a schematic diagram of a cross-sectional structure of another display panel provided in an embodiment of the present application at position BB;

[0017] Figure 9 1 is a schematic diagram of the positional relationship between the first conductive portion and the spacer in region Q of another display panel provided by an embodiment of the present application;

[0018] Figure 10 1 is a schematic diagram of a cross-sectional structure of another display panel at CC provided in an embodiment of the present application;

[0019] Figure 11 1 is a schematic diagram of a cross-sectional structure of another display panel at CC provided in an embodiment of the present application;

[0020] Figure 12 1 is a schematic diagram of the positional relationship between the first conductive portion and the spacer in region Q of another display panel provided by an embodiment of the present application;

[0021] Figure 13 2 is a schematic diagram of a cross-sectional structure of another display panel at position DD provided in an embodiment of the present application;

[0022] Figure 141 is a schematic diagram of the positional relationship between the first conductive portion and the spacer in region Q of another display panel provided by an embodiment of the present application;

[0023] Figure 15 1 is a schematic diagram of a cross-sectional structure of another display panel at EE provided in an embodiment of the present application;

[0024] Figure 16 1 is a schematic diagram of the positional relationship between the first conductive portion and the spacer in region Q of another display panel provided by an embodiment of the present application;

[0025] Figure 17 It is a structural schematic diagram of a display device provided in an embodiment of the present application.

[0026] Marking Description:

[0027] 10. a first substrate;

[0028] 20. a second substrate;

[0029] 30. Spacers;

[0030] 41. First conductive portion; 42. Second conductive portion; 43. Touch trace;

[0031] 50. Isolation layer;

[0032] 60. protrusion;

[0033] PX, pixel unit

[0034] A, groove structure; J, gap space;

[0035] B1, bottom wall; M1, first surface; M2, contact surface; K, opening;

[0036] X, first direction; Y, second direction; Z, thickness direction. DETAILED DESCRIPTION

[0037] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is merely to provide a better understanding of the present application by illustrating the examples of the present application.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, the elements defined by the phrase "comprising..." do not exclude the presence of other identical elements in the process, method, article, or device comprising the elements.

[0039] Existing display panels often suffer from poor uniformity in the dark state. This problem is primarily due to light leakage from the display panel in the dark state. One of the main causes of dark state light leakage is that some structures in the display panel deform under external forces, which generates friction.

[0040] Specifically, spacers are provided inside the display panel to play a supporting and protective role. When the display panel is subjected to external force (this external force may be caused by interference due to mismatched design or inaccurate production of some film layers in the display panel, resulting in local force; it may also be caused by a force applied from the outside of the display panel acting on the display panel), friction will be generated between the spacer and the film layer it contacts. If the friction force is greater than a certain value, it is easy to cause the spacer to be unable to rebound and reset, and the supporting effects of different spacers are different, and uniform support cannot be provided. This will further cause the thickness of the liquid crystal layer between the two substrates to be uneven. When light enters the liquid crystal layer with uneven thickness, the thickness difference will cause an optical path difference, and the polarizer located above the liquid crystal layer can only block light of a specific optical path. Therefore, when the thickness of the liquid crystal layer is inconsistent, light leakage will occur.

[0041] Regarding the above issues, please refer to Figures 1 to 3 An embodiment of the present application provides a display panel, including a spacer 30 and a first substrate 10 and a second substrate 20 arranged opposite to each other. A groove structure A is provided on the side of the first substrate 10 facing the second substrate 20, and the groove structure A includes a bottom wall B1.

[0042] The spacer 30 is arranged on the second substrate 20 and partially abuts the first substrate 10. The spacer 30 has a first surface M1 on the side facing the first substrate 10. The first surface M1 is at least partially spaced apart from the bottom wall B1. In the thickness direction Z of the first substrate 10, the first surface M1 at least partially overlaps with the projection of the groove structure A.

[0043] The present invention does not limit the type of display panel. For example, the display panel can be a liquid crystal display panel or an organic light-emitting display panel. Taking a liquid crystal display panel as an example, the first substrate 10 is an array substrate, the second substrate 20 is a color filter substrate, and a liquid crystal layer can be filled between the first substrate 10 and the second substrate 20.

[0044] The present embodiment does not limit the film layer structure and material composition within the first substrate 10 and the second substrate 20. For example, when the first substrate 10 is an array substrate, the first substrate 10 may include structures such as a gate layer, a source / drain layer, an active layer, an insulating layer, and a planarization layer. When the second substrate 20 is a color filter substrate, the second substrate 20 may include structures such as a black matrix.

[0045] In addition, the first substrate 10 may be a flexible substrate for meeting flexible display and bending requirements, or the first substrate 10 may be a rigid substrate, which is not limited in the embodiment of the present application, and the same applies to the second substrate 20 .

[0046] The first substrate 10 is provided with a groove structure A. Specifically, the first substrate 10 includes multiple stacked film layer structures, and the opening direction of the groove structure A points to the second substrate 20. The embodiment of the present application does not limit the film layer where the groove structure A is located. The groove structure A can be located in a metal layer, or in an organic layer or an inorganic layer. The groove structure A can be a groove structure formed by cutting or penetrating a single film layer, or a groove structure formed by cutting or penetrating multiple film layers.

[0047] The spacer 30 is located between the first substrate 10 and the second substrate 20 to support the first substrate 10 and the second substrate 20 so that there is a gap between the first substrate 10 and the second substrate 20. The spacer 30 is disposed on the second substrate 20 and abuts against the first substrate 10.

[0048] The spacer 30 has a first surface M1 facing the first substrate 10. The first surface M1 is the surface of the spacer 30 that is closest to the first substrate 10. In the thickness direction Z of the first substrate 10, the first surface M1 at least partially overlaps with the projection of the groove structure A. In other words, on any surface perpendicular to the thickness direction Z of the first substrate 10, the area where the first surface M1 is located overlaps with the area where the groove structure A is located.

[0049] It should be noted that when the first substrate 10 and the second substrate 20 are rigid substrates, the projection of the first substrate 10 in the thickness direction Z is the orthographic projection of the plane on which the first substrate 10 resides. When the first substrate 10 and the second substrate 20 are flexible substrates, the thickness direction Z of the first substrate 10 varies at different locations, so a specific analysis is required based on the different locations of the first substrate 10. For example, the projection of the first surface M1 in the thickness direction Z of the first substrate 10 may also be the projection of the first surface M1 in the height direction of the corresponding spacer 30.

[0050] In the related art, the first surface M1 of the spacer 30 is in full contact with the first substrate 10. When the display panel is affected by external force, a large friction force is easily generated between the spacer 30 and the first substrate 10, which easily causes the spacer 30 to be unable to rebound and reset, thereby causing dark state light leakage problems.

[0051] In the embodiment of the present application, the spacer 30 is arranged corresponding to the groove structure A, and the groove structure A has a bottom wall B1, and the bottom wall B1 is arranged relative to the first surface M1 in the thickness direction Z, and there is a gap between the first surface M1 and the bottom wall B1, so that the first surface M1 will not completely contact the bottom wall B1. Part of the structure in the first surface M1 will be exposed to the groove structure A, so that the first surface M1 will not completely contact and abut the first substrate 10. The exposure mentioned here means that part of the surface of the first surface M1 will not be blocked by other structures, so that it can be fully exposed. This can reduce the friction between the spacer 30 and the first substrate 10, and reduce the risk of the spacer 30 being unable to rebound and reset due to excessive friction, improve the thickness uniformity between the first substrate 10 and the second substrate 20, reduce the optical path difference caused by uneven thickness, and thus ensure the polarization uniformity of the polarizer to light, reduce the probability of light leakage, improve the dark state uniformity of the display panel, and enhance the user experience.

[0052] The embodiment of the present application does not limit the size relationship between the bottom wall B1 and the first surface M1. In one direction perpendicular to the thickness direction Z, the size of the first surface M1 may be greater than, less than, or equal to the size of the bottom wall B1.

[0053] In some embodiments, see Figures 2 to 4 ,, the first substrate 10 includes a plurality of first conductive portions 41, and at least some of the first conductive portions 41 are arranged at intervals to form a groove structure A.

[0054] Multiple first conductive parts 41 are located in the same film layer, and the material composition of different first conductive parts 41 can be the same. In this way, multiple first conductive parts 41 can be formed simultaneously using the same mask and in the same preparation process, thereby reducing the process steps of the display panel and improving the preparation efficiency.

[0055] The specific location of the first conductive portion 41 and its function in the display panel are not limited in this embodiment. The first conductive portion 41 can be used to transmit specific signals, such as data signals and power signals, or the first conductive portion 41 can not transmit any signals, that is, the first conductive portion 41 is not electrically connected to other signal lines or driver chips to carry electrical signals.

[0056] In addition, the display panel generally includes a pixel unit PX. Figure 2 , a relative positional relationship between the first conductive portion 41 and the pixel unit PX is shown, that is, the projection of the first conductive portion 41 in the thickness direction Z is located between the projections of adjacent pixel units PX in the thickness direction Z. Of course, in another embodiment, the projection of the first conductive portion 41 in the thickness direction Z may also overlap with the projection of the pixel unit PX in the thickness direction Z.

[0057] At least part of the first conductive parts 41 are arranged at intervals, so as to form a groove structure A. Specifically, Figure 3 As shown, if the film layer where the first conductive part 41 is located is the film layer in the first substrate 10 closest to the second substrate 20, the groove structure A can be located in the film layer where the first conductive part 41 is located, and the gap between adjacent first conductive parts 41 is the groove structure A.

[0058] like Figure 4 As shown, if the first substrate 10 still has other film layers on the side of the first conductive portion 41 facing the second substrate 20, for example, the first substrate 10 has an isolation layer 50 on the side of the first conductive portion 41 facing the second substrate 20, because at least some of the first conductive portions 41 are spaced apart, gaps J will exist between some of the first conductive portions 41. Part of the structure in the isolation layer 50 can be embedded in the gaps J. However, because the isolation layer 50 itself is relatively thin, it cannot completely fill the gaps J formed by the first conductive portions 41. Therefore, the isolation layer 50 corresponding to the gaps J will be recessed away from the second substrate 20, forming a groove structure A.

[0059] It should be noted that the isolation layer 50 can be a single layer or multiple layers, or other film layers can be included above the isolation layer 50, or other film layers can be present between the isolation layer 50 and the first conductive part 41. As long as the groove structure A can be formed, the embodiment of the present application does not impose any restrictions on this.

[0060] In the embodiment of the present application, since at least some of the first conductive portions 41 are spaced apart, a groove structure A can be formed on the first substrate 10. On this basis, by adjusting the spacing between the first conductive portions 41, the size of the groove structure A can be controlled, thereby indirectly controlling the positional relationship between the spacer 30 and the groove structure A, thereby meeting the requirement for spacing between the first surface M1 and the bottom wall B1.

[0061] In some embodiments, the first conductive portions 41 are spaced apart in the first direction X, and a dimension L1 of the bottom wall B1 in the first direction X is smaller than a dimension CD1 of the first surface M1 in the first direction X.

[0062] The embodiment of the present application does not limit the extension direction of the first conductive portion 41. Optionally, the first conductive portion 41 extends along the first direction X. The first conductive portions 41 are spaced apart in the first direction X. On this basis, by controlling the spacing between adjacent first conductive portions 41 in the first direction X, the dimension CD1 of the bottom wall B1 in the first direction X can be controlled.

[0063] Furthermore, in the embodiment of the present application, the dimension CD1 of the bottom wall B1 in the first direction X is set to be smaller than the dimension L1 of the first surface M1 in the first direction X, so that the first surface M1 cannot completely contact the bottom wall B1, thereby reducing the contact area between the first surface M1 and the bottom wall B1, so that the first surface M1 is partially exposed in the groove structure A, reducing the friction between the spacer 30 and the first substrate 10.

[0064] The embodiments of the present application do not limit the specific dimensions of the bottom wall B1 and the first surface M1 in the first direction X. For example, the groove structure A includes an opening K opposite the bottom wall B1. The dimension of the opening K in the first direction X can be larger than the dimension L1 of the bottom wall B1 in the first direction X. In this case, the dimension CD1 of the first surface M1 in the first direction X can be smaller than, equal to, or larger than the dimension of the opening K in the first direction X.

[0065] When the dimension CD1 of the first surface M1 in the first direction X is smaller than the dimension of the opening K in the first direction X, the dimension of the first surface M1 in the second direction Y can be controlled to be larger than the dimension of the opening K in the second direction Y, so that the first surface M1 does not penetrate deep into the groove structure A. The second direction Y is any direction intersecting with the first direction X. Optionally, the first direction X is perpendicular to the second direction Y.

[0066] In addition, the first surface M1 can be a flat surface or a curved surface. When the first surface M1 is a flat surface, it can overlap with the opening K, so that the portion of the first surface M1 corresponding to the opening K can be exposed to the groove structure A, thereby reducing the friction between the spacer 30 and the first substrate 10.

[0067] In some embodiments, see Figure 5 and Figure 6 The first conductive portions 41 are spaced apart in the first direction X, and a dimension L1 of the bottom wall B1 in the first direction X is not less than a dimension CD1 of the first surface M1 in the first direction X. The first substrate 10 further includes a protrusion 60 located within the groove structure A. The protrusion 60 abuts against the spacer 30, and the contact area between the protrusion 60 and the spacer 30 is smaller than the area of ​​the first surface M1.

[0068] By controlling the distance between at least some adjacent first conductive portions 41 in the first direction X, the dimension L1 of the bottom wall B1 in the first direction X can be made greater than or equal to the dimension CD1 of the first surface M1 in the first direction X. Furthermore, the orthographic projection of the first surface M1 in the thickness direction Z can be completely within the outer contour of the orthographic projection of the bottom wall B1 in the thickness direction Z. In this case, if there is no other structure between the first surface M1 and the bottom wall B1, the first surface will directly contact the bottom wall B1, thereby forming a larger contact area and increasing friction between the two.

[0069] In view of this, the embodiment of the present application adds a protrusion 60, which is located in the groove structure A and is formed by protruding from the bottom wall B1 in the direction close to the spacer 30. The number of protrusions 60 can be one or more. The embodiment of the present application does not limit the formation method and material composition of the protrusion 60. For example, after the film layer structure where the groove structure A is located is prepared, the protrusion 60 can be formed in the groove structure A by evaporation etching, and the protrusion 60 is made of a material different from the film layer where the groove structure A is located.

[0070] The protrusion 60 is against the spacer 30, and the protrusion 60 can separate the first surface M1 from the bottom wall B1, wherein the size of the protrusion 60 in the thickness direction Z can be greater than the depth of the groove structure A, so that the spacer 30 is completely located outside the groove structure A; or the size of the protrusion 60 in the thickness direction Z can also be smaller than the depth of the groove structure A, so that the spacer 30 can be partially located inside the groove structure A; or the size of the protrusion 60 in the thickness direction Z can also be equal to the size of the groove structure A in the thickness direction Z.

[0071] In addition, the contact area between the protrusion 60 and the first surface M1 is smaller than the area of ​​the first surface M1, so that part of the surface of the first surface M1 will not contact the protrusion 60, thereby reducing the friction force on the spacer 30 and improving the dark state uniformity.

[0072] In some embodiments, see Figure 7 The protrusion 60 has a contact surface M2 on a side facing the spacer 30 , and at least one of the contact surface M2 and the first surface M1 is a curved surface.

[0073] If the contact surface M2 and the first surface M1 are two parallel planar structures, the contact surface M2 and the first surface M1 are in surface contact.

[0074] In the embodiment of the present application, at least one of the contact surface M2 and the first surface M1 is configured as a curved surface. That is, the contact surface M2 can be a curved surface, the first surface M1 can be a curved surface, or both can be curved structures. This configuration ensures that the contact between the first surface M1 and the contact surface M2 is not surface contact, but rather line contact or even point contact, thereby reducing the friction area and reducing friction. Furthermore, curved surfaces are generally smoother, which can also reduce friction.

[0075] It should be noted that when both the contact surface M2 and the first surface M1 are curved surfaces, their structures need not match, that is, one of the first surface M1 and the contact surface M2 will not fully contact the other. For example, when both the contact surface M2 and the first surface M1 are curved surfaces, the center of curvature of the first surface M1 can be located on the side of the first surface M1 facing away from the contact surface M2, and the center of curvature of the contact surface M2 can be located on the side of the contact surface M2 facing away from the first surface M1.

[0076] In some embodiments, see Figure 8 The number of the protrusions 60 is at least two, the at least two protrusions 60 are spaced apart, and the spacer 30 is in contact with the at least two protrusions 60 .

[0077] A plurality of protrusions 60 are provided within the groove structure A. The protrusions 60 can be arranged side by side in a single direction, for example, along a first direction X; or they can be arranged in an array along multiple directions, for example, along the first direction X and a second direction; or they can be randomly arranged in multiple directions, which is not limited in this embodiment of the present application. The distance between adjacent protrusions 60 is also not limited in this embodiment of the present application. For example, the spacing between different adjacent protrusions 60 can be the same or different.

[0078] Because the dimension L1 of the bottom wall B1 in the first direction X can be greater than the dimension CD1 of the first surface M1 in the first direction X, the groove structure A does not adequately restrict the spacer 30 in the first direction X, and the spacer 30 may slip relative to the groove structure A in the first direction X. In this case, if only one protrusion 60 is provided within the groove structure A, the support effect of the single protrusion 60 on the spacer 30 is generally insufficient, which can easily cause the spacer 30 to slip relative to the protrusion 60. Furthermore, if the dimension of the protrusion 60 in the thickness direction Z is greater than the depth of the groove structure A, there is a risk that the spacer 30 will detach from the groove structure A, affecting the reliability of the display panel.

[0079] In view of this, the embodiment of the present application makes the spacer 30 contact with at least two protrusions 60. The at least two protrusions 60 can improve the support for the spacer 30 and, to a certain extent, limit the position of the spacer 30. Specifically, for example, when the spacer 30 is in contact with multiple protrusions 60 arranged side by side in the first direction X at the same time, the multiple protrusions 60 improve the position stability of the spacer 30 in the first direction X, and reduce the risk of the spacer 30 and the protrusions 60 slipping and separating in the first direction X. Furthermore, at least two protrusions 60 can offset the edge position of the first surface M1, thereby supporting the edge position of the first surface M1, further improving the support effect of the protrusions 60 on the spacer 30, and reducing the risk of the two slipping and separating due to external forces.

[0080] Furthermore, because the protrusions 60 are spaced apart from one another, portions of the first surface M1 corresponding to the areas between adjacent protrusions 60 do not abut against the protrusions 60, thereby reducing friction on the spacer 30. Furthermore, the design of multiple protrusions 60 reduces the difficulty and precision of alignment between the spacer 30 and the protrusions 60, facilitating display panel fabrication.

[0081] In some embodiments, see Figures 9 to 11 The first substrate 10 further includes a second conductive portion 42 , and the second conductive portion 42 is at least partially located between adjacent first conductive portions 41 to form a protrusion 60 .

[0082] The first conductive portion 41 and the second conductive portion 42 are provided in the same layer. The first conductive portion 41 and the second conductive portion 42 can be made of the same material or different materials. For example, the first conductive portion 41 and the second conductive portion 42 are made of the same material and can be prepared together in the same process step.

[0083] The second conductive portion 42 is located between adjacent first conductive portions 41. The extension direction of the second conductive portion 42 can be the same as the extension direction of the first conductive portion 41, or the extension direction of the second conductive portion 42 can be different from the extension direction of the first conductive portion 41. The existence of the second conductive portion 42 can form a protrusion 60. Specifically, Figure 10 As shown, the groove structure A is the gap space between adjacent first conductive portions 41 , and the second conductive portion 42 located between the adjacent first conductive portions 41 is itself the protrusion 60 located in the groove structure A.

[0084] like Figure 11 As shown, if the first substrate 10 still has other film layers, such as an isolation layer 50, on the side of the first conductive portion 41 facing the second substrate 20, and the isolation layer 50 cannot completely fill the gap formed by two adjacent first conductive portions 41, the spacing between adjacent first conductive portions 41 will form a groove structure A in the isolation layer 50. Furthermore, the presence of the second conductive portion 42 causes the isolation layer 50 to partially protrude, forming a protrusion 60, and the protrusion 60 is located in the groove structure A.

[0085] In the embodiment of the present application, a second conductive portion 42 is provided in the film layer where the first conductive portion 41 is located, thereby forming a protrusion 60 in the groove structure A, and the structural size of the protrusion 60 can be controlled by adjusting and changing the size of the second conductive portion 42.

[0086] In some embodiments, the number of the protrusion 60 is one, and the protrusion 60 has a contact surface M2 on a side facing the spacer 30 . The size of the contact surface M2 in the first direction X is smaller than the size of the first surface M1 in the first direction X.

[0087] In the embodiment of the present application, the size of the protrusion 60 can be adjusted by adjusting the size of the second conductive portion 42, so that the size of the contact surface M2 of the protrusion 60 in the first direction X can be smaller than the size of the first surface M1 in the first direction X, thereby reducing the contact friction between the protrusion 60 and the spacer 30. Furthermore, the size of the protrusion 60 in the thickness direction Z can be controlled to be smaller than the depth of the groove structure A, so that the first surface M1 can be at least partially embedded in the groove structure A. The sidewalls of the groove structure A can limit the relative position of the spacer 30 in the first direction X, reducing the risk of separation between the spacer 30 and the groove structure A.

[0088] Furthermore, the embodiment of the present application does not limit the dimensional relationship between the contact surface M2 and the first surface M1 in the second direction Y and other directions. The size of the second conductive portion 42 can be adjusted so that the size of the contact surface M2 in the second direction Y is greater than, less than, or equal to the size of the first surface M1 in the second direction Y.

[0089] In some embodiments, as Figure 9 and Figure 10 As shown, at least a portion of the second conductive portion 42 extends along the second direction Y.

[0090] The first conductive portion 41 can extend along the first direction X, and at least a portion of the second conductive portion 42 extends along the second direction Y. The first conductive portion 41 can be a linear conductive structure extending along the first direction X, and the second conductive portion 42 can be a linear conductive structure extending along the second direction Y. Both can be used to transmit electrical signals, or may not be used to transmit electrical signals. This embodiment of the present application does not limit this.

[0091] Since the second conductive portion 42 extends along the second direction Y, the corresponding protrusion 60 also has a certain extension length in the second direction Y, thereby increasing the contact area between the protrusion 60 and the spacer 30 in the second direction Y and improving the position reliability of the two in the second direction Y.

[0092] In some embodiments, as Figure 12 and Figure 13 As shown, the second conductive portion 42 has an annular structure. For example, the projection of the second conductive portion 42 in the thickness direction Z can be a circular ring structure or a square ring structure. It should be noted that since the second conductive portion 42 has an annular structure, the extension directions of different positions of the second conductive portion 42 can be the same or different, and some positions of the second conductive portion 42 can extend along the second direction Y.

[0093] Because the second conductive portion 42 has an annular structure, a single second conductive portion 42 can simultaneously form multiple parallel protrusions 60, allowing the spacer 30 to abut against the multiple protrusions 60. This also simplifies the preparation of the multiple protrusions 60, facilitating manufacturing. Furthermore, the annular structure of the second conductive portion 42 allows the protrusions 60 to also have an annular structure, thereby providing support for the spacer 30 in different directions. This reduces contact friction between the protrusions 60 and the spacer 30, thereby improving support stability.

[0094] In some embodiments, see Figure 14 and Figure 15 The first substrate 10 and the second substrate 20 are both curved substrates. The first conductive portion 41 extends along the first direction X. Multiple first conductive portions 41 are spaced apart in the first direction X to form multiple groove structures A. The spacer 30 is corresponding to at least one groove structure A.

[0095] Both the first substrate 10 and the second substrate 20 are flexible structures and can be transformed into curved substrates under the action of external force. In the process of the first substrate 10 and the second substrate 20 gradually becoming curved substrates under the action of external force, due to the influence of factors such as thickness, the corresponding bending degrees of the first substrate 10 and the second substrate 20 are not completely consistent, and a certain degree of misalignment is likely to occur between the two. At this time, the first conductive portion 41 may be separated from the originally corresponding groove structure A.

[0096] On this basis, the embodiment of the present application is targeted at curved substrates, where multiple first conductive portions 41 are spaced apart to allow for the presence of multiple groove structures A in the same direction. When the spacers 30 are separated from the corresponding groove structures A due to the curvature of the display panel, the spacers 30 can still be positioned corresponding to other groove structures A, thereby achieving a positioning and restriction function for the spacers 30, meeting the requirements of flexible substrates.

[0097] In some embodiments, see Figure 16 The display panel includes a touch line 43 , and the first conductive portion 41 and the touch line 43 are arranged on the same layer.

[0098] The touch line 43 is used to realize the touch needs of the display panel. Normally, the touch line 43 is located on the side of the planarization layer facing the second substrate 20, that is, in the first substrate 10, the film layer thickness on the side of the touch line 43 close to the second substrate 20 is relatively thin. These film layers cannot play a flattening role on the touch line 43. The first conductive part 41 and the touch line 43 are arranged on the same layer, so these film layers cannot play a flattening role on the first conductive part 41. There will be a protrusion in the area where the first conductive part 41 is located, and the intervals between the first conductive parts 41 are relatively concave to form a groove structure A. The preparation process is simple and easy, and no additional film layer is required.

[0099] Within the plane of the display panel, the present embodiment does not limit the positional relationship and signal connection relationship between the first conductive portion 41 and the touch trace 43. For example, the first conductive portion 41 and the touch trace 43 both extend along the first direction X and are insulated from each other.

[0100] Optionally, the first conductive portion 41 and the touch trace 43 may be made of the same material. During fabrication, the first conductive portion 41 and the touch trace 43 may be formed together in the same manufacturing process, thereby improving the manufacturing efficiency of the display panel and saving costs.

[0101] Second, see Figure 17 , an embodiment of the present application provides a display device, the display device including the display panel in any of the aforementioned embodiments.

[0102] It should be noted that the display device provided in the embodiment of the present application has the beneficial effects of the display panel of any of the aforementioned embodiments. Please refer to the aforementioned description of the display panel for details, and the embodiment of the present application will not be repeated.

[0103] Although the embodiments disclosed in this application are as described above, the contents described are merely embodiments adopted to facilitate understanding of this application and are not intended to limit the present invention. Any person skilled in the art to which this application belongs may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in this application. However, the scope of protection of this application shall still be based on the scope defined by the appended claims.

[0104] The above description is only a specific embodiment of the present application. Those skilled in the art will clearly understand that for the convenience and brevity of description, the replacement of other connection methods described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here. It should be understood that the scope of protection of the present application is not limited to this. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the scope of protection of this application.

Claims

1. A display panel, characterized in that: include: A first substrate and a second substrate are arranged opposite to each other, wherein a groove structure is arranged on a side of the first substrate facing the second substrate, and the groove structure includes a bottom wall; a spacer, arranged on the second substrate and partially abutting against the first substrate, the spacer having a first surface on a side facing the first substrate, the first surface being at least partially spaced from the bottom wall, and the first surface at least partially overlapping with a projection of the groove structure in a thickness direction of the first substrate; The dimension of the bottom wall in the first direction is not less than the dimension of the first surface in the first direction; The first substrate further includes a protrusion located in the groove structure, the protrusion partially abuts against the spacer, and a contact area between the two is smaller than an area of ​​the first surface.

2. The display panel according to claim 1, characterized in that: The first substrate includes a plurality of first conductive parts, and at least some of the first conductive parts are arranged at intervals to form the groove structure.

3. The display panel according to claim 1, characterized in that: The protrusion has a contact surface on a side facing the spacer, and at least one of the contact surface and the first surface is a curved surface.

4. The display panel according to claim 2, characterized in that: The number of the protrusions is at least two, and at least two of the protrusions are arranged at intervals, and the spacer is in contact with at least two of the protrusions.

5. The display panel according to claim 2, characterized in that: The first substrate further includes a second conductive portion, wherein the second conductive portion is at least partially located between adjacent first conductive portions to form the protrusion.

6. The display panel according to claim 5, characterized in that: The number of the protrusion is one, and the protrusion has a contact surface on a side facing the spacer, and a size of the contact surface in the first direction is smaller than a size of the first surface in the first direction.

7. The display panel according to claim 5, characterized in that: At least part of the structure in the second conductive portion extends along a second direction, and the first direction intersects the second direction; and / or, The second conductive portion is in a ring-shaped structure.

8. The display panel according to claim 2, characterized in that: The first substrate and the second substrate are curved structure substrates, the first conductive portion extends along a first direction, a plurality of the first conductive portions are spaced apart in the first direction to form a plurality of the groove structures, and the spacer is correspondingly arranged in at least one of the groove structures.

9. The display panel according to claim 2, characterized in that: The display panel includes a touch wiring, and the first conductive portion is arranged in the same layer as the touch wiring.

10. A display device, characterized in that: Comprising the display panel as claimed in any one of claims 1 to 9.

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