Display panel and display device

Abstract

The embodiment of the invention provides a display panel and a display device. The display panel comprises a substrate; the array layer is located on one side of the substrate, the array layer comprises a driving circuit, and the driving circuit comprises at least one transistor; the array layer further comprises a plurality of openings, and at least two openings are located on at least one side of the transistor in the first direction; the projections of the two openings at one side of the transistor in the first direction are not overlapped, and the projections of the centers of the two openings to the substrate are not overlapped; the light-emitting element is located on the side, away from the substrate, of the array layer, and the light-emitting element is electrically connected with the transistor; the light blocking structure comprises a light blocking unit, and the opening is filled with the light blocking unit; wherein the first direction is parallel to the plane where the substrate is located. According to the display panel, the openings in different positions are formed in one side of the transistor, and the openings are filled with the light blocking units, so that light can be reflected or absorbed, light leakage of the transistor is reduced, and the overall display effect of the display panel is guaranteed.

Description

Technical Field

[0001] Embodiments of the present invention relate to the field of display technology, and in particular to a display panel and a display device. Background Art

[0002] With the continuous development of display technology, display panels have been widely used in people's production and life. In order to better meet people's needs, the display panel can be adjusted, for example, some film layers in the display panel can be adjusted to improve the overall effect of the display panel. Summary of the invention

[0003] The embodiments of the present invention provide a display panel and a display device. The display panel is provided with openings at different positions on one side of a transistor, and light blocking units are filled in the openings to ensure the overall display effect of the display panel.

[0004] In a first aspect, an embodiment of the present invention provides a display panel, including:

[0005] substrate;

[0006] An array layer is located on one side of the substrate, the array layer includes a driving circuit, and the driving circuit includes at least one transistor; the array layer also includes a plurality of openings, along a first direction, there are at least two of the openings located on at least one side of the transistor; the projections of the two openings located on one side of the transistor along the first direction do not overlap, and the projections of the centers of the two openings onto the substrate do not overlap;

[0007] A light emitting element is located on a side of the array layer away from the substrate, and the light emitting element is electrically connected to the transistor;

[0008] A light blocking structure, the light blocking structure comprising a light blocking unit, the light blocking unit filling the opening;

[0009] Wherein, the first direction is parallel to the plane where the substrate is located.

[0010] In a second aspect, an embodiment of the present invention provides a display device, comprising the display panel described in the first aspect.

[0011] An embodiment of the present invention provides a display panel, wherein the array layer of the display panel includes a driving circuit, a plurality of openings are arranged on one side of the transistor in the driving circuit, and a light blocking structure that can block light and reflect light is filled in the opening, so as to avoid the influence of light on the transistor, that is, reduce the light leakage of the transistor, ensure the stability of the transistor, and thus improve the overall display effect of the display panel. Among them, at least two openings are located on the same side of the transistor, and the projections of the two openings along the first direction do not overlap, that is, the two openings are arranged in different layers, and at the same time, the projections of the two openings to the substrate do not overlap, that is, the two openings as a whole can be understood as being staggered, so that different light rays to be transmitted to the transistor can be accurately blocked to different degrees, thereby ensuring the light blocking effect, and further improving the overall display effect of the display panel.

[0012] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required to describe the embodiments. Obviously, the drawings introduced are only drawings of a part of the embodiments to be described in the present invention, rather than all the drawings. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 is a schematic structural diagram of a first display panel provided by an embodiment of the present invention;

[0015] Figure 2 yes Figure 1 A schematic diagram of a first cross section along the section line A-A';

[0016] Figure 3 yes Figure 1 A second cross-sectional schematic diagram along the section line A-A';

[0017] Figure 4 yes Figure 1 A third cross-sectional diagram along the section line A-A';

[0018] Figure 5 yes Figure 1 A fourth cross-sectional schematic diagram along the section line A-A';

[0019] Figure 6 yes Figure 1 A fifth cross-sectional schematic diagram along the section line A-A';

[0020] Figure 7is a schematic structural diagram of a second display panel provided by an embodiment of the present invention;

[0021] Figure 8 yes Figure 7 A schematic diagram of the first cross section along the section line C-C';

[0022] Fig. 9 yes Figure 7 A schematic diagram of a first cross section along the section line D-D';

[0023] Fig.10 yes Figure 7 A second cross-sectional schematic diagram along the section line C-C';

[0024] Fig.11 It is a structural schematic diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a system, product or device comprising a series of units is not necessarily limited to those steps or units clearly listed, but may include other units that are not clearly listed or inherent to these products or devices.

[0027] Figure 1 is a schematic structural diagram of a first display panel provided by an embodiment of the present invention, Figure 2 yes Figure 1 The first cross-sectional diagram along the section line A-A', refer to Figure 1 and Figure 2As shown, an embodiment of the present invention provides a display panel 10, which includes: a substrate 100; an array layer 200, which is located on one side of the substrate 100, and the array layer 200 includes a driving circuit 210, and the driving circuit 210 includes at least one transistor 211; the array layer 200 also includes a plurality of openings 220, and along a first direction X, there are at least two openings 220 located on at least one side of the transistor 211; the projections of the two openings 220 located on one side of the transistor 211 along the first direction X do not overlap, and the projections of the centers of the two openings 220 onto the substrate 100 do not overlap; a light-emitting element 300, which is located on a side of the array layer 200 away from the substrate 100, and the light-emitting element 300 is electrically connected to the transistor 211; a light-blocking structure 400, which includes a light-blocking unit 410, and the light-blocking unit 410 fills the opening 220; wherein the first direction X is parallel to the plane where the substrate 100 is located.

[0028] The display panel 10 includes a substrate 100, an array layer 200 and a light-emitting element 300 located on one side of the substrate 100, wherein the light-emitting element 300 is located on a side of the array layer 200 away from the substrate 100. The array layer 200 may include a driving circuit 210, and the driving circuit 210 is electrically connected to the light-emitting element 300 to drive the light-emitting element 300 to emit light and display, thereby realizing the display function of the display panel 10. Further, the light-emitting element 300 may include a red light-emitting element, a blue light-emitting element, a green light-emitting element, etc. The driving circuit 210 drives the light-emitting elements 300 of different colors to emit light and display, thereby realizing the color display effect of the display panel 10.

[0029] Further, the driving circuit 210 includes at least one transistor. The embodiment of the present invention does not limit the type and quantity of the specific transistor, and the type of the driving circuit 210 can be adaptively adjusted according to actual needs. Exemplarily, the driving circuit 210 can be a 7T1C circuit or a 2T1C circuit, "T" represents a transistor, and "C" represents a capacitor, which is not limited in the embodiment of the present invention. Figure 2 The driving circuit 210 is illustrated by taking one transistor 211 as an example. The specific number of transistors 211 in the driving circuit 210 is not limited in the embodiment of the present invention.

[0030] Optional, reference Figure 2As shown, the array layer 200 should also include a first pad 221 and a second pad 222, and the first pad 222 is electrically connected to the driving circuit 210; further, the first electrode 310 of the light-emitting element 300 is electrically connected to the first pad 221, and the second electrode 320 of the light-emitting element 300 is electrically connected to the second pad 222, so as to ensure that the light-emitting element 300 is connected to the driving circuit 210, so that the light-emitting element 300 can be driven to emit light and realize the display function of the display panel 10. Further, considering the number of different film layers of the array layer 200, in order to ensure the electrical connection between the light-emitting element 300 and the driving circuit 210, a connection structure 400 can also be provided in the array layer 200, and the light-emitting element 300 can be electrically connected to the driving circuit 210 through the connection structure 400.

[0031] Furthermore, the array layer 200 includes a plurality of openings 220, and the openings 220 are filled with light blocking units 410. The light blocking units 410 can block the light transmitted to the light blocking units 410. For example, the light blocking units 410 can reflect the light transmitted to the light blocking units 410, for example, the light blocking units 410 are metal materials that can reflect light, so that the light cannot continue to be transmitted along the original path; or the light blocking units 410 can be light-absorbing materials, such as black materials, and the light transmitted to the light blocking units 410 is absorbed by the materials and will not continue to be transmitted along the original path, thereby achieving light blocking.

[0032] Among them, by setting an opening 220 on one side or both sides of the transistor 211 and filling the light blocking unit 410 in the opening 220, it is equivalent to forming a "blocking wall" to reflect or absorb the light that is originally transmitted to the transistor 211, thereby effectively avoiding the unstable influence of light on the transistor 211, that is, effectively avoiding the transistor 211 from generating carriers due to being irradiated by light, thereby affecting the working stability of the transistor 211. That is, setting the opening 220 and filling the light blocking unit 410 in the opening 220 can effectively reduce the light leakage generated by the transistor 211, thereby ensuring the working stability of the transistor 211, and thus improving the overall display effect of the display panel 10. It should be noted that Figure 2 In the figure, a plurality of openings 220 are shown as an example, located on both sides of the transistor 211 along the first direction X.

[0033] Further, the array layer 200 may include a plurality of openings 220, referring to Figure 2 As shown in FIG. 1 , there is a situation where the projections of the two openings 220 along the first direction X do not overlap. It can be understood that the two openings 220 are arranged at different insulating layers along the thickness direction of the display panel 10. It can also be understood that the spacing between the two openings 220 and the substrate 100 is different. Figure 2 At the same time, the projections of the centers of the two openings 220 onto the substrate 100 do not overlap, that is, there is a gap between the projections of the centers of the two openings 220 onto the substrate 100, such as Figure 2 It can be understood that the two openings 220 are "offset", so at least two light blocking units 410 in the array layer 200 are staggered, which can improve the light blocking effect and further ensure the overall display effect of the display panel 10. The embodiment of the present invention does not specifically limit the number of openings 220.

[0034] Specifically, in the array layer 200, there are "offset" settings of the openings 220 filled with the light blocking units 410. The light blocking units 410 can be set differently according to the length of the path of light transmission to different positions of the array layer 200, or the energy difference of the light transmission, so that the light blocking units 410 can better block the light and better prevent the light from being transmitted to the transistor 211. Furthermore, when the display panel 10 is impacted by external force or in other cases, the stress relief at the openings 220 set in the array layer 200 and filled with the light blocking units 410 should be different from that at the openings where the openings 220 are not set. Therefore, the "offset" setting of at least two openings 220 filled with the light blocking units 410 can better ensure the overall structural stability of the display panel 10 compared to the setting method of coinciding the projections of the centers of all the openings to the substrate 100.

[0035] In summary, a display panel provided by an embodiment of the present invention has a plurality of openings in its array layer, and a light blocking structure that can block and reflect light is filled in the opening, which can avoid the influence of light on the transistor, that is, reduce the light leakage of the transistor, ensure the stability of the transistor, and thus improve the overall display effect of the display panel. Among them, at least two openings are located on the same side of the transistor, and the projections of the two openings along the first direction do not overlap, that is, the two openings are arranged in different layers, and at the same time, the projections of the two openings to the substrate do not overlap, that is, the two openings as a whole can be understood as being staggered, so that different light rays to be transmitted to the transistor can be accurately blocked to different degrees, thereby ensuring the light blocking effect and further improving the overall display effect of the display panel.

[0036] Continue to refer Figure 1 and Figure 2 As shown, the array layer 200 includes a plurality of insulating layers stacked together; the opening 220 is disposed at the insulating layer and penetrates through the insulating layer.

[0037] Optional, reference Figure 1 and Figure 2As shown, the array layer 200 includes a plurality of insulating layers stacked together. Figure 2 As shown, the transistor 211 electrically connected to the light emitting element 300 in the driving circuit 210 is taken as an example. The transistor 211 includes an active layer 211a, a gate 211b, a drain 211c and a source 211d, etc. The insulating layer of the array layer 200 may include a gate insulating layer 201, a first interlayer insulating layer 202, a second interlayer insulating layer 203, a first planarizing layer 204 and a second planarizing layer 205, etc. The number and type of the insulating layers in the array layer 200 may be adaptively adjusted according to the setting type of the transistor 211, or it may be understood that the number and type of the insulating layers in the array layer 200 may be adaptively adjusted according to different display panels 10, and the embodiments of the present invention are not shown one by one here. Optionally, the array layer 200 also includes a signal line electrically connected to the driving circuit 210, etc., and no specific limitation is made based on the specific type of the structure in the array layer 200.

[0038] Furthermore, the multiple openings 220 set in the array layer 200 can be correspondingly set at different insulating layers, and the openings 220 penetrate the insulating layer 220, so that the light blocking unit 410 filled in the opening 220 can effectively block the light transmitted to the film layer, thereby ensuring the protection of the transistor 211.

[0039] Specific, combined Figure 2 As shown, the manufacturing process of the display panel 10 can be as follows: insulating layers are prepared layer by layer on the substrate 100. If an opening 220 is required at the insulating layer, the insulating layer is patterned and etched to form the opening 220 before the next insulating layer is prepared, and the light blocking unit 410 is filled in the opening 220, and then packaged. After the above process is completed, a new insulating layer is prepared.

[0040] Figure 3 yes Figure 1 The second cross-sectional diagram along the section line A-A' is shown in FIG. Figure 4 yes Figure 1 The third cross-sectional diagram along the section line A-A', refer to Figure 1 , Figure 3 and Figure 4As shown, the opening 220 includes a first opening 2201 and a second opening 2202. Along the first direction X, the first opening 2201 and the second opening 2202 are located on one side of the transistor 211, and the first opening 2201 is located on the side of the second opening 2202 away from the substrate 100; the first opening 2201 includes a plurality of first sub-openings 2201a, and the second opening 2202 includes a plurality of second sub-openings 2202a; the plurality of first sub-openings 2201a are arranged in different insulating layers, and the projections of the centers of the plurality of first sub-openings 2201a onto the substrate 100 overlap; the plurality of second sub-openings 2202a are arranged in different insulating layers, and the projections of the centers of the plurality of second sub-openings 2202a onto the substrate 100 overlap.

[0041] Among them, reference Figure 3 As shown, the opening 220 includes a first opening 2201 and a second opening 2202, wherein the first opening 2201 may include a plurality of first sub-openings 2201a, and the second opening 2202 may include a plurality of second sub-openings 2202a. That is, the first opening 2201 can be understood as a large opening structure composed of a plurality of first sub-openings 2201a, and the light blocking units 410 are filled in the first sub-openings 2201a, that is, the structure composed of the plurality of first sub-openings 2201a and the filled light blocking units 410 is equivalent to a large "blocking wall structure", and a larger "blocking wall structure" can have a more obvious light blocking effect. Similarly, the second opening 2202 can be understood as a large opening structure composed of a plurality of second sub-openings 2202a, and the light blocking units 410 are filled in each second sub-opening 2202a.

[0042] For further reference, Figure 3 As shown, the first opening 2201 is located on the side of the second opening 2202 away from the substrate 100, which means that the first opening 2201 and the second opening 2202 are arranged in different film layers of the array layer 200, and the corresponding first sub-opening 2201a and the second sub-opening 2202a are also arranged in different film layers of the array layer 200. Figure 3 As shown, along the first direction X, the first opening 2201 and the second opening 2202 are located on one side of the transistor 211, that is, the overall projection of the first opening 2201 onto the substrate 100 and the overall projection of the second opening 2202 onto the substrate 100 do not overlap, and there may be a gap S2 between the projections of the two, thus reflecting that the first opening 2201 and the second opening 2202 are "offset" arranged, reflecting that the structure opened in the display panel 10 for blocking the transmission of light to the transistor 211 is differentially arranged.

[0043] For further reference, Figure 3As shown, at the first opening 2201, the projections of the centers of the plurality of first sub-openings 2201a disposed at different insulating layers onto the substrate 100 overlap, that is, the projections of the centers of the plurality of first sub-openings 2201a onto the substrate 100 overlap in the first opening 2201. It can be understood that the projections of the plurality of first sub-openings 2201a constituting the first opening 2201 onto the substrate 100 are substantially overlapped, although they are disposed at different insulating layers; the same is true for the second opening 2202.

[0044] Thus, it can be understood that the first opening 2201 and the second opening 2202 are "misaligned" from the overall morphology, reflecting that the structure for blocking the transmission of light to the transistor 211 is differentially arranged. In the first opening 2201 and the second opening 2202, the regular arrangement of the plurality of first sub-openings 2201a is not "misaligned", and the regular arrangement of the plurality of second sub-openings 2202a is not "misaligned", that is, the sub-openings are arranged regularly, which can reduce the number of masks for patterned etching during the etching process, and can reduce the process preparation cost of the display panel 10.

[0045] For further reference, Figure 4 As shown, the projections of the centers of the multiple first sub-openings 2201a in the first opening 2201 to the substrate 100 overlap, so when preparing the first opening 2201, the insulating layers where the first sub-openings 2201a are located can be prepared first, and then etching can be performed directly in one step, that is, multiple insulating layers are integrally dug and integrally filled with light blocking units 410, and the preparation of the first opening 2201 is completed. The preparation process of the second opening 2202 is similar. In this way, while ensuring that the structure for blocking the transmission of light to the transistor 211 is a differentiated setting, the process preparation cost of the display panel 10 can be further reduced.

[0046] Continue to refer Figure 1 and Figure 3 As shown, the array layer 200 includes a layer of insulating layer; the first opening 2201 includes b first sub-openings 2201a, and the second opening 2202 includes c second sub-openings 2202a; wherein b+c≤a, a, b, c are positive integers.

[0047] The array layer 200 includes a insulating layer, for example, referring to Figure 3 As shown, an example is given with a being 5. The first opening 2201 includes b first sub-openings 2201a, and the second opening 2202 includes c second sub-openings 2202a, satisfying: b+c≤a.

[0048] In the case of b+c=a, it can be understood that the sum of the number of the first sub-openings 2201a and the number of the second sub-openings 2202a is equal to the sum of the number of the insulating layers in the array layer 200. Figure 3 As shown, taking b as 3, c as 2, and a as 5 as an example, in this case, on one side of the transistor 211, a first sub-opening 2201a or a second sub-opening 2202a is provided at each insulating layer, and each opening 220 is filled with a light blocking unit 410, thereby protecting the transistor 211 and avoiding light transmission to the transistor 211 to the greatest extent, thereby ensuring the overall display effect of the display panel 10.

[0049] Wherein, the case of b+c<a can be understood as that the sum of the number of the first sub-openings 2201a and the number of the second sub-openings 2202a is less than the sum of the number of the insulating layers in the array layer 200. In the array layer 200, if there is a part of the insulating layer without the light blocking unit 410, light will be transmitted to the transistor 211 to a greater extent, which has a greater impact on the transistor 211; there will also be a part of the insulating layer without the light blocking unit 410, where less light or no light will be transmitted to the transistor 211. In the corresponding insulating layer, considering the process preparation cost of the display panel 10, the opening 220 may not be set, that is, the first sub-opening 2201a or the second sub-opening 2202a is not designed at the insulating layer to which less light is transmitted, and the light blocking unit 410 is not filled. That is, the setting of the opening 220 can be reduced without affecting the stability of the transistor 211.

[0050] Continue to refer Figure 1 and Figure 2 As shown, the array layer 200 includes a layer of insulating layer; along the first direction X, there are d openings 220 located on at least one side of the transistor 211; the d openings 220 are arranged in different insulating layers, and the projections of the centers of the d openings 220 onto the substrate 100 do not overlap; wherein d≤a, d is a positive integer.

[0051] Among them, reference Figure 2 As shown, the array layer 200 includes a layer of insulating layer, Figure 2 In the figure, a is 5 for example. Further, along the first direction X, d openings 220 are provided in the insulating layer on one side of the transistor 211, and different openings 220 are provided in different insulating layers of the array layer 200. The projections of the centers of the d openings 220 onto the substrate 100 do not overlap, that is, it can be understood that the multiple openings 220 included in the array layer 200 are all "offset" arranged, so that a more refined opening 220 arrangement in the display panel 10 can be reflected, so that the differentiated arrangement of the openings 220 and the filled light blocking unit 410 can be better reflected.

[0052] Specifically, since different structures in the transistor 211 are arranged on different insulating layers, and the distances between different structures and the light-emitting element 300 are also different, when the light blocking unit 410 is not set, there are differences in the light that can be transmitted to the transistor 211 by different insulating layers. By adjusting the differentiated settings of the light blocking units 410 on different insulating layers, it is possible to better avoid light transmission to the transistor 211, thereby avoiding the situation where the transistor 211 generates light leakage, thereby ensuring the overall display effect of the display panel 10.

[0053] Among them, a and d satisfy: d≤a, that is, the number of light blocking structures 410 and openings 220 set on one side of the transistor 211 can be equal to the number of insulating layers set in the array layer 200, so that the light blocking effect can be guaranteed. Further, in the array layer 200, if there is a part of the insulating layer without the light blocking unit 410, it will cause a large degree of light to be transmitted to the transistor 211, which has a greater impact on the transistor 211; there will also be a part of the insulating layer without the light blocking unit 410, there will be less light or no light transmitted to the transistor 211, in the corresponding insulating layer, considering the process preparation cost of the display panel 10, the opening 220 can be omitted, that is, the light blocking unit 410 is not filled in the corresponding insulating layer. That is, under the premise of not affecting the stability of the transistor 211, the opening 220 can be reduced, thereby saving the work preparation cost.

[0054] Figure 5 yes Figure 1 The fourth cross-sectional diagram along the section line A-A', refer to Figure 1 and Figure 5 As shown, the projections of the openings 220 disposed in two adjacent insulating layers onto the substrate 100 at least partially overlap.

[0055] Specifically, a plurality of openings 220 are provided on one side of the transistor 211 , and a light blocking unit 410 is filled in the opening 220 . The light blocking unit 410 is used to prevent light from being transmitted to the transistor 211 and prevent the transistor 211 from generating light leakage, thereby ensuring the overall display effect of the display panel 10 .

[0056] For further reference, Figure 5As shown, when openings 220 are set in two adjacent insulating layers, the projections of the centers of the two openings 220 onto the substrate 100 do not overlap, that is, the two openings 220 are "offset" and the projections of the two openings 220 onto the substrate 100 at least partially overlap, that is, the two openings 220 are "offset" and the light blocking units 410 filled in the two openings 220 are in contact with each other, so that it can be ensured that there is no gap in the insulating layer that allows light to continue to transmit, and the light blocking unit 410 protects the transistor 211 and prevents the transistor 211 from generating light leakage. Specifically, refer to Figure 5 As shown in the middle area B1 or area B2, although the two openings 220 filled with the light blocking unit 410 are "offset" in arrangement, they overlap with each other and do not expose a gap that allows light to be transmitted to the transistor 211, thereby ensuring a better light blocking effect and better ensuring the overall display effect of the display panel 10.

[0057] Continue to refer Figure 5 As shown, among the d openings 220 , the distance between the opening 220 close to the substrate 100 and the center of the transistor 211 is greater than the distance between the opening 220 far from the substrate 100 and the center of the transistor 211 .

[0058] Specifically, the openings 220 are disposed at the insulating layer, and different openings 220 are disposed on different insulating layers, so the distances between different openings 220 and the substrate 100 are different. Figure 5 As shown in the figure, the opening 220a is located on the side of the opening 220b close to the substrate 100, that is, the setting positions of the two openings 220 are different from the substrate 100, which can also be understood as the distance between the two openings 220 and the light-emitting element 300 is different.

[0059] Furthermore, along the thickness direction of the display panel 10, considering the different locations of the opening 220, the opening 220 can be adjusted more finely. Figure 5As shown, the distance S3 between the opening 220 (refer to the opening 220a) close to the substrate 100 and the center of the transistor 211 is greater than the distance S4 between the opening 220 (refer to the opening 220b) far from the substrate 100 and the center of the transistor 211. Specifically, in order to prevent the light emitted by the light-emitting element 300 from being continuously transmitted in the array layer 200 and affecting the overall display effect of the display panel 10, the insulating layer closer to the light-emitting element 300 may receive more light, so the opening 220 closer to the light-emitting element 300 may be set closer to the transistor 211, and the light blocking unit 410 (the light blocking unit 410 may absorb the light transmitted to the light blocking unit 410) is filled in the opening 220 to prevent the light from being transmitted to the transistor 211, and also to prevent the light from continuing to be transmitted in the array layer 200, so as to better ensure the overall display effect of the display panel 10.

[0060] Figure 6 yes Figure 1 The fifth cross-sectional diagram along the section line A-A', refer to Figure 1 and Figure 6 As shown, the insulating layer includes a first insulating layer 230 and a second insulating layer 240; the opening 220 includes a third opening 223 and a fourth opening 224, the third opening 223 is arranged at the first insulating layer 230, and the fourth opening 224 is arranged at the second insulating layer 240; wherein, along the thickness direction of the display panel 10, the thickness of the first insulating layer 230 is greater than the thickness of the second insulating layer 240, and the projection area of ​​the third opening 223 onto the substrate 100 is greater than the projection area of ​​the fourth opening 224 onto the substrate 100.

[0061] Among them, the thickness of the insulating layer in the array layer 200 is different. For the insulating layers of different thicknesses, if the openings 220 are set, and the openings 220 are filled with light blocking units 410 for blocking light, in order to ensure the light blocking effect, the openings 220 set in the insulating layers of different thicknesses can be further differentiated, so as to ensure that the light blocking units 410 set in the insulating layers of different thicknesses are different, which can ensure the light blocking effect and ensure the overall display effect of the display panel 10.

[0062] Specifically, the array layer 200 includes a first insulating layer 230 and a second insulating layer 240, and along the thickness direction of the display panel 10, the thickness of the first insulating layer 230 is greater than the thickness of the second insulating layer 240. The reason for the difference in thickness of the first insulating layer 230 and the second insulating layer 240 may be that the materials of the insulating layers at different positions are different, etc. The specific reason for the difference in thickness of the first insulating layer 230 and the second insulating layer 240 is not specifically described in the embodiment of the present invention. Figure 6It is only used to show that there are two insulating layers with different thicknesses, and the specific film locations of the first insulating layer 230 and the second insulating layer 240 are Figure 6 This is just an example. For different display panels 10 , the thickness of the insulating layer may be set differently, which will not be shown one by one in the embodiment of the present invention.

[0063] The opening 220 includes a third opening 223 and a fourth opening 224. The third opening 223 is disposed at the first insulating layer 230, and the fourth opening 224 is disposed at the second insulating layer 240, that is, the third opening 223 is disposed at the first insulating layer 230 with a relatively large thickness, and the fourth opening 224 is disposed at the second insulating layer 240 with a relatively small thickness. Furthermore, the third opening 223 and the fourth opening 224 are also filled with a light blocking unit 410 to prevent light from being transmitted in the array layer 200, thereby affecting the working stability of the transistor 211, thereby ensuring the overall display effect of the display panel 10.

[0064] Furthermore, there is a difference in the thickness of the insulating layer corresponding to the third opening 223 and the fourth opening 224. In order to ensure the light blocking effect, the third opening 223 and the fourth opening 224 can be set differently. Among them, the projection area of ​​the third opening 223 to the substrate 100 is larger than the projection area of ​​the fourth opening 224 to the substrate 100, that is, the projection area of ​​the opening 220 set at the thicker insulating layer to the substrate 100 is larger. Specifically, in order to ensure the light blocking effect at the thicker insulating layer, the size of the opening 220 can be increased, and correspondingly, the projection area of ​​the opening to the substrate 100 becomes larger, so that the size of the light blocking unit 410 set in the thicker insulating layer can be ensured to be larger, thereby achieving a better light blocking effect, thereby ensuring the overall display effect of the display panel 10.

[0065] Figure 7 is a schematic structural diagram of a second display panel provided by an embodiment of the present invention, Figure 8 yes Figure 7 The first cross-sectional diagram along the section line C-C', see Figure 7 and Figure 8 As shown, the display panel 10 includes a first area 10A and a second area 10B, and the second area 10B at least partially surrounds the first area 10A; the second area 10B includes a first sub-area 10B1, the light-emitting element 300 and the transistor 211 are located in the first sub-area 10B1, and the opening 220 is located on a side of the first sub-area 10B1 close to the first area 10A.

[0066] Among them, reference Figure 7As shown, the display panel 10 includes a first area 10A and a second area 10B, and the second area 10B at least partially surrounds the first area 10A. Further, the second area 10B includes a first sub-area 10B1, Figure 7 and Figure 8 As shown, the light emitting element 300 is arranged in the first sub-region 10B1, and the first sub-region 10B1 in the display panel 10 can be understood as the display function area of ​​the display panel 10. Further, the opening 220 arranged in the array layer 200 is located on the side of the first sub-region 10B1 close to the first region 10A, so as to prevent the light of the light emitting element 300 in the first sub-region 10B1 from being transmitted to the first region 10A, affecting the first region 10A, and further affecting the overall display effect of the display panel 10. Optionally, if the display panel 10 is a transparent display panel, the first region 10A can be understood as a light-transmitting area, the opening 220 is located on the side of the first sub-region 10B1 close to the first region 10A, and the light blocking unit 410 is filled in the opening 220, so as to prevent the light from being transmitted to the light-transmitting area, thereby ensuring the overall light transmittance of the display panel 10 and the overall display effect of the display panel 10.

[0067] Fig. 9 yes Figure 7 The first cross-sectional diagram along the section line D-D', see Figure 7 and Fig. 9 As shown, the array layer 200 includes a multi-layer insulating layer; the second area 10B also includes a second sub-area 10B2, in which the display panel 10 also includes a plurality of signal lines 250, and the plurality of signal lines 250 are arranged in different insulating layers; the light blocking structure 400 also includes a light blocking layer 420, and the projection of the light blocking layer 420 onto the substrate 100 at least partially overlaps with the projection of the signal line 250 onto the substrate 100.

[0068] Furthermore, the display panel 10 also includes a plurality of signal lines 250, such as a data signal line (Vdata), a power signal line (a positive power signal line PVDD or a negative power signal line PVEE), a scanning signal line, etc. The specific number and type of the signal lines 250 are not specifically limited in the embodiment of the present invention. The driving circuit 210 electrically connected to the light-emitting element 300 and the plurality of signal lines 250 are used to ensure that the driving circuit 210 drives the light-emitting element 300 to emit light, thereby achieving the overall display effect of the display panel 10. Specifically, refer to Figure 7 and Fig. 9As shown, the second area 10B also includes a second sub-area 10B2. The driving circuit 210 in the display panel 10 and the light-emitting element 300 electrically connected to the driving circuit 210 are located in the first sub-area 10B1, and multiple signal lines 250 are located in the second sub-area 10B2. The material of the signal line 250 is a metal line. If light is transmitted to the signal line 250, it will be reflected, thereby affecting the overall display effect of the display panel 10.

[0069] Furthermore, in order to prevent the light from being reflected when it is transmitted to the signal line 250, the light blocking structure 400 further includes a light blocking layer 420. Fig. 9 As shown, the projection of the light blocking layer 420 onto the substrate 100 at least partially overlaps with the projection of the signal trace 250 onto the substrate 100, and the light blocking layer 420 can be understood as a black material, which can absorb the light transmitted to the light blocking layer 420 to prevent the light from continuing to reflect, thereby reducing the reflectivity of the light, thereby ensuring the overall display effect of the display panel 10.

[0070] Continue to refer Figures 7 to 9 As shown, the transistor 211 includes an active layer 211 a and a gate 211 b ; the light blocking layer 420 is disposed in the same layer as the active layer 211 a and / or the gate 211 b .

[0071] Further, combined with reference Figure 7 and Fig. 9 As shown, the light blocking layer 420 located in the second sub-region 10B2 can be arranged in the same layer as the active layer 211a and / or the gate 211b in the first sub-region 10B1, so that the overall display effect of the display panel 10 can be improved without increasing the overall film thickness of the display panel 10. The specific number of light blocking layers 420 in the display panel 10 is not specifically limited in the embodiment of the present invention. Fig. 9 In the example, the display panel 10 includes two light blocking layers 420. Further, if the display panel 10 further includes a light shielding layer in the first sub-region 10B1, which is disposed on a side of the active layer 211a of the transistor 211 close to the substrate 100, the light blocking layer 420 can also be disposed on the same layer as the light shielding layer, which reflects the flexible arrangement of the light blocking layer 420.

[0072] Continue to refer Figure 7 and Figure 8 As shown, the display panel 10 further includes a first insulating structure 500 , which is located in the first region 10A and on one side of the substrate 100 ; the transmittance of the first insulating structure 500 is greater than the transmittance of the insulating layer.

[0073] For further reference, Figure 7 and Figure 8As shown, the display panel 10 further includes a first insulating structure 500, and the first insulating structure 500 is located in the first region 10A, and the transmittance of the first insulating structure 500 is greater than the transmittance of the insulating layer in the array layer 200, that is, the first region 10A has a higher transmittance. Further, when the first insulating structure 500 is a transparent insulating material, the first region 10A can be understood as a display light-transmitting region in the display panel 10.

[0074] Optionally, the opening 220 includes at least one of a regular trapezoidal opening, an inverted trapezoidal opening, or a rectangular opening.

[0075] The shapes of the openings 220 provided in the array layer 200 are diverse, for example, the openings 220 may be at least one of a regular trapezoidal opening, an inverted trapezoidal opening, or a rectangular opening. When the shapes of the openings 220 are diverse, the shapes of the light blocking units 410 filled in the openings 220 are also diverse, for example, they may be at least one of a regular trapezoidal opening, an inverted trapezoidal opening, or a rectangular opening. The shapes of the openings 220 may be adaptively adjusted according to different requirements or different manufacturing processes.

[0076] Continue to refer Figure 7 and Figure 8 As shown, the display panel 10 further includes a second insulating structure 600 ; the second insulating structure 600 is located on a side of the array layer 200 away from the substrate 100 , and the second insulating structure 600 surrounds at least a portion of the light emitting element 300 ; the second insulating structure 600 is made of the same material as the light blocking structure 400 .

[0077] For further reference, Figure 8 As shown, the display panel 10 also includes a second insulating structure 600, and the first insulating structure 600 is located on a side of the array layer 200 away from the substrate 100, and the second insulating structure 600 surrounds at least part of the light-emitting element 300. Since the second insulating structure 600 and the light blocking element 400 are made of the same material, that is, the second insulating structure 600 arranged around the light-emitting element 300 can block the transmission of light, this can avoid color crosstalk between different light-emitting elements 300, thereby ensuring the overall display effect of the display panel 10.

[0078] Furthermore, the display panel 10 can block the transmission of light at multiple angles through the second insulating structure 600 and the light blocking unit 410 filled in the opening 220 , thereby ensuring the overall display effect of the display panel 10 .

[0079] Fig.10 yes Figure 7 The second cross-sectional diagram along the section line C-C', refer to Figure 7 and Fig.10As shown, the display panel 10 further includes a light shielding layer 700 , and the light shielding layer 700 is located on a side of the driving circuit 200 close to the substrate 100 .

[0080] Furthermore, the display panel 10 further includes a light shielding layer 700, referring to Fig.10 As shown, the shading layer 700 is located on the side of the driving circuit 200 close to the substrate 100. The setting of the shading layer 700 can prevent light from being transmitted to the active layer 211a of the transistor 211, and prevent the transistor 211 from generating light leakage, thereby ensuring the overall display effect of the display panel 10.

[0081] Specifically, refer to Figure 8 and Fig.10 As shown, the display panel 10 can block the transmission of light at multiple angles through the second insulating structure 600 , the light shielding layer 700 and the light blocking unit 410 filled in the opening 220 , thereby ensuring the overall display effect of the display panel 10 .

[0082] Optionally, the light emitting element 300 includes a micro light emitting element or a mini light emitting element.

[0083] Optionally, the light emitting element 300 may be a micro light emitting diode (Micro Light Emitting Diode, MicroLED). Micro LED has the advantages of good display performance, small size, low power, etc., and has broad application prospects. In other embodiments, the light emitting element 300 may also adopt other types of light emitting diodes, such as Mini LED, etc. Those skilled in the art may set them according to actual needs, and the embodiments of the present invention are not limited to this.

[0084] Based on the same inventive concept, an embodiment of the present invention further provides a display device, Fig.11 is a schematic diagram of the structure of a display device provided by an embodiment of the present invention, such as Fig.11 As shown, the display device 1 includes the display panel 10 described in any of the above embodiments. Therefore, the display device 1 provided in the embodiment of the present invention has the corresponding beneficial effects of the above embodiments, which will not be repeated here. The display device 1 can be an electronic device such as a mobile phone, a computer, a smart wearable device (for example, a smart watch), and a car display device.

[0085] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display panel, characterized in that: include: substrate; An array layer is located on one side of the substrate, the array layer includes a driving circuit, and the driving circuit includes at least one transistor; the array layer also includes a plurality of openings, along a first direction, there are at least two of the openings located on at least one side of the transistor; the projections of the two openings located on one side of the transistor along the first direction do not overlap, and the projections of the centers of the two openings onto the substrate do not overlap; A light emitting element is located on a side of the array layer away from the substrate, and the light emitting element is electrically connected to the transistor; A light blocking structure, the light blocking structure comprising a light blocking unit, the light blocking unit filling the opening; Wherein, the first direction is parallel to the plane where the substrate is located.

2. The display panel according to claim 1, characterized in that: The array layer includes a plurality of insulating layers stacked in layers; The opening is disposed at the insulating layer and penetrates the insulating layer.

3. The display panel according to claim 2, characterized in that: The opening comprises a first opening and a second opening, wherein along the first direction, the first opening and the second opening are located at one side of the transistor, and the first opening is located at a side of the second opening away from the substrate; The first opening includes a plurality of first sub-openings, and the second opening includes a plurality of second sub-openings; A plurality of the first sub-openings are arranged in different insulating layers, and projections of centers of the plurality of the first sub-openings onto the substrate overlap; The plurality of second sub-openings are disposed in different insulating layers, and projections of centers of the plurality of second sub-openings onto the substrate overlap.

4. The display panel according to claim 3, characterized in that: The array layer includes a layer of the insulating layer; The first opening includes b first sub-openings, and the second opening includes c second sub-openings; Among them, b+c≤a, a, b, c are positive integers.

5. The display panel according to claim 2, characterized in that: The array layer includes a layer of the insulating layer; Along the first direction, there are d openings located on at least one side of the transistor; the d openings are arranged in different insulating layers, and the projections of the centers of the d openings onto the substrate do not overlap; wherein d≤a, and d is a positive integer.

6. The display panel according to claim 5, characterized in that: Projections of the openings disposed in two adjacent insulating layers onto the substrate at least partially overlap.

7. The display panel according to claim 5, characterized in that: Among the d openings, the distance between the opening close to the substrate and the center of the transistor is greater than the distance between the opening far from the substrate and the center of the transistor.

8. The display panel according to claim 5, characterized in that: The insulating layer includes a first insulating layer and a second insulating layer; the opening includes a third opening and a fourth opening, The third opening is disposed at the first insulating layer, and the fourth opening is disposed at the second insulating layer; Wherein, along the thickness direction of the display panel, the thickness of the first insulating layer is greater than the thickness of the second insulating layer, and the projection area of ​​the third opening onto the substrate is greater than the projection area of ​​the fourth opening onto the substrate.

9. The display panel according to claim 1, characterized in that: The display panel includes a first area and a second area, wherein the second area at least partially surrounds the first area; The second region includes a first sub-region, the light emitting element and the transistor are located in the first sub-region, and the opening is located on a side of the first sub-region close to the first region.

10. The display panel according to claim 9, characterized in that: The array layer includes a plurality of insulating layers stacked in layers; the second region also includes a second sub-region, In the second sub-area, the display panel further includes a plurality of signal wirings, and the plurality of signal wirings are arranged at different insulating layers; The light blocking structure further includes a light blocking layer, and a projection of the light blocking layer onto the substrate at least partially overlaps with a projection of the signal wiring onto the substrate.

11. The display panel according to claim 10, characterized in that: The transistor comprises an active layer and a gate; The light blocking layer is arranged in the same layer as the active layer and / or the gate.

12. The display panel according to claim 10, characterized in that: The display panel further includes a first insulating structure, which is located in the first area and on one side of the substrate; The transmittance of the first insulating structure is greater than the transmittance of the insulating layer.

13. The display panel according to claim 1, characterized in that: The opening includes at least one of a regular trapezoidal opening, an inverted trapezoidal opening or a rectangular opening.

14. The display panel according to claim 1, characterized in that: The display panel further comprises a second insulating structure; the second insulating structure is located at a side of the array layer away from the substrate, and the second insulating structure surrounds at least a portion of the light emitting element; The second insulating structure is made of the same material as the light blocking structure.

15. The display panel according to claim 1, characterized in that: The display panel further includes a light shielding layer, and the light shielding layer is located on a side of the driving circuit close to the substrate.

16. The display panel according to claim 1, characterized in that: The light emitting element includes a micro light emitting element or a mini light emitting element.

17. A display device, characterized in that: A display panel comprising any one of claims 1-16.

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