Display panel and display device

Abstract

The invention relates to a display panel and a display device. The display panel comprises a substrate, a driving array layer arranged on one side of the substrate, and a composite filter film layer arranged on one side, away from the substrate, of the driving array layer and located in a display area, a non-display area and a hole area; the composite light filtering film layer comprises a light shielding layer and a plurality of first light filtering structures, a plurality of positioning holes distributed at intervals are formed in the light shielding layer located in the non-display area, the positioning holes penetrate through the light shielding layer in the thickness direction of the light shielding layer, the first light filtering structures correspond to the positioning holes, and at least part of each first light filtering structure is arranged in the corresponding positioning hole; the driving array layer comprises a marking film layer located in the non-display area, and the projection of the marking film layer on the substrate is overlapped with the projection of the positioning hole on the substrate. In conclusion, according to the display panel in the embodiment, the first light filtering structure is arranged in the positioning hole, so that the intensity of light rays irradiating to the outside through the positioning hole is weakened, light emission at the positioning hole in the display panel is reduced, and the appearance of the display panel is improved.

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] In the field of organic light emitting diode (OLED) display panel technology, color filter on encapsulation layer (COE) technology is widely used due to its ability to reduce power consumption and thickness of display panels.

[0003] In the prior art, COE technology includes a COE film layer covering the light-emitting layer. The COE film layer includes a color filter (CF) film layer and a black matrix (BM) film layer. The CF film layers are arranged in an array, and the CF film layers correspond to the light-emitting area of ​​the light-emitting layer. The BM film layers are located between adjacent CF film layers, and the BM film layers correspond to the non-light-emitting area of ​​the light-emitting layer. By designing the transmittance of the CF film layer, the reflectivity of the ambient light in the light-emitting area is reduced; by controlling the film thickness and optical density value of the BM film layer, the reflectivity of the ambient light in the non-light-emitting area is reduced.

[0004] In the related art, a through hole area is provided on the display panel, and the orthographic projection of the through hole area on the light-emitting layer is located in the non-light-emitting area of ​​the light-emitting layer. The through hole area is used to open a through hole, and a camera and other devices will be set in the opened through hole later to reduce the screen-to-body ratio of the display panel. In order to reduce the risk of light emitted by the light-emitting unit in the light-emitting area emitting from the through hole, and to reduce the frame of the through hole area, a through hole penetrating the display panel is usually formed at the position of the black matrix film layer in the COE film layer corresponding to the through hole area. However, it is necessary to set an alignment mark on the display panel to facilitate the positioning of the opening point in the position of the black matrix film layer corresponding to the through hole area. However, the alignment mark will reflect the light emitted by the light-emitting unit in the light-emitting area of ​​the light-emitting layer, affecting the appearance of the display panel. Summary of the invention

[0005] Based on this, it is necessary to propose a display panel and a display device to address the problem in the current COE technology that the alignment mark reflects the light emitted by the light-emitting unit in the light-emitting area of ​​the light-emitting layer, affecting the appearance of the display panel.

[0006] A display panel, comprising:

[0007] substrate;

[0008] A driving array layer, disposed on one side of the substrate;

[0009] A composite filter film layer is arranged on a side of the driving array layer away from the substrate and is located in the display area, the non-display area and the hole area; the composite filter film layer includes a light shielding layer and a plurality of first filter structures, the light shielding layer located in the non-display area is provided with a plurality of positioning holes arranged at intervals, the positioning holes penetrate the light shielding layer along the thickness direction of the light shielding layer, the plurality of first filter structures are arranged correspondingly to the plurality of positioning holes, and at least a portion of the first filter structure is arranged in the corresponding positioning holes;

[0010] The driving array layer includes a marking film layer located in the non-display area, and a projection of the marking film layer on the substrate overlaps with a projection of the positioning hole on the substrate.

[0011] In one embodiment, the plurality of first filter structures are arranged in one-to-one correspondence with the plurality of positioning holes;

[0012] Optionally, the plurality of positioning holes are arranged around the hole area.

[0013] In one embodiment, the marking film layer includes a plurality of marking portions, and the plurality of marking portions surround the hole area;

[0014] The plurality of positioning holes are arranged corresponding to the plurality of marking portions, and the projections of the marking portions on the substrate at least partially overlap with the projections of the corresponding positioning holes on the substrate;

[0015] Optionally, the plurality of positioning holes are arranged in one-to-one correspondence with the plurality of marking portions.

[0016] In one embodiment, the first light filtering structure covers the side of the light shielding layer away from the substrate, and fills at least a portion of the positioning hole along the depth direction of the positioning hole;

[0017] Optionally, in a direction in which the driving array layer is away from the substrate, a distance between a side of the first light filtering structure away from the light shielding layer and a side of the light shielding layer away from the driving array layer is greater than 10 um;

[0018] Optionally, the first light filtering structure comprises a first light filtering portion, the first light filtering portion fills at least a portion of the positioning hole along a depth direction of the positioning hole, and a projection of the first light filtering portion on the substrate covers a projection of the positioning hole on the substrate;

[0019] Optionally, the first filter portion is configured as a red filter layer;

[0020] Optionally, the first filter structure includes a second filter portion, the second filter portion covers a side of the first filter portion away from the light shielding layer, and the second filter portion and the first filter portion are respectively used to filter light of different colors;

[0021] Optionally, the second filter portion is configured as a green filter layer.

[0022] In one of the embodiments, the display panel includes a light emitting device layer, the light emitting device layer is located in the display area, the light emitting device layer is arranged between the driving array layer and the light shielding layer in the display area, and the light emitting device layer includes a plurality of light emitting devices;

[0023] Optionally, the light emitting device comprises a first electrode, a light emitting layer and a second electrode which are sequentially stacked along a side away from the driving array layer and away from the substrate;

[0024] Optionally, the composite filter film layer includes a plurality of second filter structures, a plurality of light-transmitting holes arranged at intervals are provided on the light-shielding layer located in the display area, the plurality of second filter structures are arranged corresponding to the plurality of light-transmitting holes, and the second filter structures are at least partially arranged in the corresponding light-transmitting holes;

[0025] The plurality of light-transmitting holes are arranged corresponding to the plurality of light-emitting devices, and projections of the light-transmitting holes on the substrate at least partially overlap with projections of the corresponding light-emitting devices on the substrate.

[0026] In one embodiment, the display panel includes a thin film encapsulation layer, and the thin film encapsulation layer is located in the display area, the non-display area and the hole area;

[0027] The thin film encapsulation layer located in the non-display area is arranged between the light shielding layer and the driving array layer, and the thin film encapsulation layer located in the display area is arranged between the light emitting device layer and the light shielding layer;

[0028] Optionally, the thin film encapsulation layer comprises a first inorganic encapsulation layer, an organic encapsulation layer and a second inorganic encapsulation layer which are sequentially stacked along a side away from the light-emitting device layer and away from the substrate;

[0029] Optionally, the second electrode in the light emitting device close to the non-display area at least partially extends to between the driving array layer and the thin film encapsulation layer in the non-display area.

[0030] In one embodiment, the display panel includes a touch module layer, and the touch module layer is located in the display area and is disposed between the thin film encapsulation layer and the composite filter film layer;

[0031] Optionally, the display panel includes an adhesive layer, and the adhesive layer is located in the display area and is arranged between the composite filter film layer and the touch module layer.

[0032] In one embodiment, the driving array layer includes a plurality of first transistors, the plurality of first transistors are located in the display area, the plurality of first transistors are arranged corresponding to the plurality of light-emitting devices, the first electrode of each of the light-emitting devices is electrically connected to the first transistor corresponding to the light-emitting device, and the first transistor is used to provide an electrical signal for the corresponding light-emitting device;

[0033] Optionally, the first transistor includes a first active layer, a first gate, a first source and a first drain, the first source and the first drain are electrically connected to the first active layer, respectively, and the first electrode of each of the light-emitting devices is electrically connected to the first source in the corresponding first transistor;

[0034] Optionally, the driving array layer includes a buffer layer, which is disposed between the marking film layer and the substrate and is located in the display area, the non-display area and the hole area;

[0035] Optionally, the driving array layer includes a first gate insulating layer, which covers a side of the marking film layer away from the buffer layer and is located in the display area, the non-display area and the hole area, and the first active layer is arranged between the buffer layer and the first gate insulating layer;

[0036] Optionally, the driving array layer includes an interlayer insulating layer, which is disposed on a side of the first gate insulating layer away from the buffer layer, the interlayer insulating layer is located in the display area, the non-display area and the hole area, and the first gate is disposed between the interlayer insulating layer and the first gate insulating layer;

[0037] Optionally, the driving array layer includes an interlayer dielectric layer, the interlayer dielectric layer includes a first interlayer dielectric layer, which is arranged on a side of the interlayer insulating layer away from the first gate insulating layer, the first interlayer dielectric layer is located in the display area, the non-display area and the hole area, and the first source and the first drain are at least partially arranged on a side of the first interlayer dielectric layer away from the interlayer insulating layer;

[0038] Optionally, orthographic projections of the first gate and the first active layer on the substrate at least partially overlap.

[0039] In one embodiment, the interlayer dielectric layer includes a second interlayer dielectric layer, which is arranged on a side of the first interlayer dielectric layer away from the buffer layer, the second interlayer dielectric layer is located in the display area, the non-display area and the hole area, and the first source and the first drain are at least partially arranged on a side of the second interlayer dielectric layer away from the interlayer insulating layer;

[0040] Optionally, the driving array layer includes a first flat layer, the first flat layer is arranged on a side of the second interlayer dielectric layer away from the buffer layer, the first flat layer is located in the display area, the non-display area and the hole area, and the first source and the first drain are at least partially arranged on one side of the first flat layer and the second interlayer dielectric layer;

[0041] Optionally, the driving array layer includes a plurality of connecting electrodes, the plurality of connecting electrodes are arranged corresponding to the plurality of first transistors, the connecting electrodes are electrically connected to the first source electrodes in the corresponding first transistors, and are partially located on a side of the first planar layer away from the buffer layer, and the first electrode in the light-emitting device is electrically connected to the connecting electrodes connected to the corresponding first transistors;

[0042] Optionally, the driving array layer includes a second flat layer and a pixel definition layer, the second flat layer is arranged on a side of the first flat layer away from the buffer layer, the second flat layer is located in the display area, the non-display area and the hole area, the connecting electrode is located between the second flat layer and the first flat layer, the pixel definition layer is located in the display area, the pixel definition layer is arranged on a side of the second flat layer away from the first flat layer, the first electrode of each of the light-emitting devices is arranged between the second flat layer and the pixel definition layer, and is electrically connected to the connecting electrode, a plurality of pixel openings are arranged on the pixel definition layer, the plurality of pixel openings are arranged corresponding to the plurality of light-emitting devices, and each of the pixel openings exposes the first electrode of the corresponding light-emitting device;

[0043] Optionally, the light-emitting layer of the light-emitting device is located in the corresponding pixel opening, and the second electrode of the light-emitting device is located on a side of the pixel definition layer away from the second planar layer and covers the corresponding pixel opening.

[0044] In the display panel of the present embodiment, in the process of opening a through hole for placing a camera in the hole area of ​​the display panel, the hole opening device will identify the projection of the marking film layer in the driving array layer on the substrate through the positioning holes corresponding to the different first filtering structures, and the overlapping part with the projection of the different positioning holes on the substrate, and accurately locate the position of the through hole to be opened in the hole area of ​​the display panel according to the recognition result, so as to ensure that the through hole is opened at the target position on the display panel and improve the position accuracy of the opened through hole. In addition, since each first filtering structure is at least partially arranged in the corresponding positioning hole, and the positioning hole is filled with the first filtering structure, the light reflected by the marking film layer cannot be completely irradiated from the positioning hole to the outside world, and part of the light reflected by the marking film layer will be filtered by the first filtering structure, and part of the light reflected by the marking film layer cannot penetrate the first filtering structure in the positioning hole to irradiate to the outside world, so no obvious reflection will be generated at the positioning hole on the display panel.

[0045] In summary, the display panel in this embodiment, by setting the first filter structure in the positioning hole, weakens the intensity of light emitted from the marking film layer and radiating to the outside through the positioning hole, reduces the light emission at the positioning hole on the display panel, and improves the appearance of the display panel.

[0046] The present application also proposes a display device, comprising the display panel described in any one of the above items.

[0047] In the display device of this embodiment, in the process of opening a through hole for placing a camera in the hole area of ​​the display panel, the hole opening device will identify the projection of the marking film layer in the driving array layer on the substrate through the positioning holes corresponding to the different first filtering structures, and the overlapping part with the projection of different positioning holes on the substrate, and accurately locate the position of the through hole to be opened in the hole area of ​​the display panel according to the recognition result, so as to ensure that the through hole is opened at the target position on the display panel and improve the position accuracy of the opened through hole. In addition, since each first filtering structure is at least partially arranged in the corresponding positioning hole, and the positioning hole is filled with the first filtering structure, the light reflected by the marking film layer cannot be completely irradiated from the positioning hole to the outside world, and part of the light reflected by the marking film layer will be filtered by the first filtering structure, and part of the light reflected by the marking film layer cannot penetrate the first filtering structure in the positioning hole to irradiate to the outside world, so no obvious reflection will be generated at the positioning hole on the display panel.

[0048] In summary, the display device in this embodiment, by setting the first filter structure in the positioning hole, weakens the intensity of light emitted from the marking film layer and radiating to the outside through the positioning hole, reduces the light emission at the positioning hole on the display panel, and improves the appearance of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of the present application, the drawings required for use in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0050] Figure 1 It is a top view of the display panel in the non-display area and the hole area in one embodiment of the present application.

[0051] Figure 2 for Figure 1 A cross-sectional view of the display panel is shown at point A.

[0052] Figure 3 for Figure 2 The schematic diagram of the structure of the first light filtering structure including the second light filtering part in the display panel shown.

[0053] Figure 4 It is a cross-sectional view of a display panel in a display area in an embodiment of the present application.

[0054] Reference numerals:

[0055] Display panel 10;

[0056] substrate 100;

[0057] Driving array layer 200, marking film layer 210, marking portion 211, first transistor 220, first active layer 221, first gate electrode 222, first source electrode 223, first drain electrode 224, buffer layer 230, shielding layer 240, first gate insulating layer 250, interlayer insulating layer 260, first insulating layer 261, second insulating layer 262, interlayer dielectric layer 270, first interlayer dielectric layer 271, second interlayer dielectric layer 272, first planar layer PLN1, connecting electrode 280, second planar layer PLN2, pixel definition layer PDL, electrode 290, first electrode 291, second electrode 292, third electrode 293, fourth electrode 294;

[0058] Composite filter film layer 300, light shielding layer 310, positioning hole 311, light transmission hole 312, first filter structure 320, first filter part 321, second filter part 322, second filter structure 330;

[0059] Light-emitting device layer 400, light-emitting device 410, first electrode 411, light-emitting layer 412, second electrode 413;

[0060] Thin film encapsulation layer 500, first inorganic encapsulation layer 510, organic encapsulation layer 520, second inorganic encapsulation layer 530;

[0061] Touch module layer 600;

[0062] Adhesive layer 700;

[0063] The second transistor 800 , the second active layer 810 , the second gate 820 , the third gate 830 , the second source 840 , and the second drain 850 . DETAILED DESCRIPTION

[0064] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0065] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0066] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0067] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0068] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0069] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0070] See also Figures 1 to 3 , Figure 1 The top view of the display panel 10 in the non-display area NAA and the hole area HA in one embodiment of the present application is shown. A display panel 10 provided in one embodiment of the present application includes an opening area HA, a display area AA at least partially surrounding the opening area HA, and a non-display area NAA located between the opening area HA and the display area AA, as well as a substrate 100, a driving array layer 200 and a composite filter film layer 300. The driving array layer 200 is arranged on one side of the substrate 100, and the composite filter film layer 300 is arranged on the side of the driving array layer 200 away from the substrate 100, and is located in the display area AA, the non-display area NAA and the hole area HA. The composite filter film layer 300 includes a light shielding layer 310 and a plurality of first filter structures 320. A plurality of positioning holes 311 arranged at intervals are provided on the light shielding layer 310 located in the non-display area NAA. The positioning holes 311 penetrate the light shielding layer 310 along the thickness direction of the light shielding layer 310. The plurality of first filter structures 320 are arranged correspondingly to the plurality of positioning holes 311. At least a portion of the first filter structures 320 is arranged in the corresponding positioning holes 311. The driving array layer 200 includes a marking film layer 210 located in the non-display area NAA. The projection of the marking film layer 210 on the substrate 100 overlaps with the projection of the positioning holes 311 on the substrate 100.

[0071] In the display panel 10 of the present embodiment, during the process of opening a through hole (not marked) for placing a camera in the hole area HA of the display panel 10, the hole opening device will identify the projection of the marking film layer 210 in the driving array layer 200 on the substrate 100 through different first filter structures 320 and the positioning holes 311 corresponding to the different first filter structures 320, and the overlapping part with the projection of different positioning holes 311 on the substrate 100, and accurately locate the position of the through hole to be opened in the hole area HA of the display panel 10 according to the recognition result, thereby ensuring that the through hole is opened at the target position on the display panel 10 and improving the position accuracy of the opened through hole. In addition, since each first filter structure 320 is at least partially disposed in the corresponding positioning hole 311 and the positioning hole 311 is filled with the first filter structure 320, the light reflected by the marking film layer 210 cannot be completely irradiated to the outside world from the positioning hole 311. Part of the light reflected by the marking film layer 210 will be filtered by the first filter structure 320, and part of the light reflected by the marking film layer 210 cannot penetrate the first filter structure 320 in the positioning hole 311 to irradiate to the outside world. Therefore, no obvious reflection will be generated at the positioning hole 311 on the display panel 10.

[0072] In summary, the display panel 10 in this embodiment, by setting the first filter structure 320 in the positioning hole 311, weakens the intensity of the light emitted from the marking film layer 210 and irradiated to the outside through the positioning hole 311, reduces the light emission at the positioning hole 311 on the display panel 10, and improves the appearance of the display panel 10.

[0073] See also Figure 2 and Figure 3 In some embodiments, the plurality of first light filtering structures 320 are arranged in one-to-one correspondence with the plurality of positioning holes 311 .

[0074] In the present embodiment, by arranging a plurality of first filter structures 320 in one-to-one correspondence with a plurality of positioning holes 311, each positioning hole 311 can be filled with the corresponding first filter structure 320, thereby ensuring that the light reflected into each positioning hole 311 by the marked film layer 210 will be filtered by the first filter structure 320 in the corresponding positioning hole 311, so that no obvious reflection will be generated at each positioning hole 311 on the display panel 10, thereby finally improving the appearance of the display panel 10.

[0075] In some embodiments, a plurality of positioning holes 311 are arranged around the hole area HA.

[0076] In this embodiment, a plurality of positioning holes 311 are arranged around the hole area HA, so that the hole opening device can determine the center of the hole area HA by identifying the projection of the marking film layer 210 in the driving array layer 200 on the substrate 100 and the overlapping part with the projections of different positioning holes 311 on the substrate 100, and then open a through hole in the center of the hole area HA.

[0077] See also Figure 2 and Figure 3 In some embodiments, the marking film layer 210 includes a plurality of marking portions 211, the plurality of marking portions 211 surround the hole area HA, a plurality of positioning holes 311 are arranged corresponding to the plurality of marking portions 211, and a projection of the marking portion 211 on the substrate 100 at least partially overlaps with a projection of the corresponding positioning hole 311 on the substrate 100.

[0078] In the present embodiment, since the projection of each marking portion 211 on the substrate 100 at least partially overlaps with the projection of the corresponding positioning hole 311 on the substrate 100, the hole opening device can identify the marking portion 211 whose projection on the substrate 100 at least partially overlaps with the projection of the corresponding positioning hole 311 on the substrate 100 through different first filtering structures 320 and the positioning holes 311 corresponding to different first filtering structures 320, and then determine the center of the hole area HA by identifying the overlapping portion of the projection of the different marking portions 211 on the substrate 100 and the projection of the corresponding positioning hole 311 on the substrate 100.

[0079] In some embodiments, the plurality of positioning holes 311 are disposed in one-to-one correspondence with the plurality of marking portions 211 .

[0080] In this embodiment, each positioning hole 311 corresponds to one marking portion 211 , so the number of marking portions 211 can be reduced.

[0081] See also Figure 2 and Figure 3 In some embodiments, the first light filtering structure 320 covers a side of the light shielding layer 310 away from the substrate 100 , and fills at least a portion of the positioning hole 311 along a depth direction of the positioning hole 311 .

[0082] In the present embodiment, the light reflected by the marking film layer 210 will be filtered by the first filter structure 320 filled in the corresponding positioning hole 311 after entering any positioning hole 311. Under the filtering effect of the first filter structure 320, most of the light entering the positioning hole 311 cannot penetrate the first filter structure 320 to irradiate the outside world. Therefore, no obvious reflection will be generated at the positioning hole 311 on the display panel 10.

[0083] In some embodiments, in the direction in which the driving array layer 200 is away from the substrate 100 , the distance between the side of the first light filtering structure 320 away from the light shielding layer 310 and the side of the light shielding layer 310 away from the driving array layer 200 is greater than 10 um.

[0084] In the present embodiment, since the spacing between the side of the first light filtering structure 320 away from the light shielding layer 310 and the side of the light shielding layer 310 away from the driving array layer 200 is greater than 10 um, the size of the first light filtering structure 320 in the arrangement direction of the driving array layer 200 and the substrate 100 is increased, that is, the thickness of the first light filtering structure 320 is increased. As the thickness of the first light filtering structure 320 increases, the filtering effect of the first light filtering structure 320 is also enhanced, and more light entering the positioning hole 311 will be filtered by the first light filtering structure 320, and the reflection at the positioning hole 311 on the display panel 10 can be further reduced.

[0085] In some embodiments, the first filtering structure 320 includes a first filtering portion 321 , which fills at least a portion of the positioning hole 311 along the depth direction of the positioning hole 311 , and the projection of the first filtering portion 321 on the substrate 100 covers the projection of the positioning hole 311 on the substrate 100 .

[0086] In this embodiment, after the light reflected by the marking film layer 210 enters any positioning hole 311 , it will be filtered by the first filter portion 321 filled in the corresponding positioning hole 311 .

[0087] In some embodiments, the first filter portion 321 is configured as a red filter layer.

[0088] In this embodiment, the first filter portion 321 filters red light.

[0089] In some embodiments, the first filter structure 320 includes a second filter portion 322 , which covers a side of the first filter portion 321 away from the light shielding layer 310 , and the second filter portion 322 and the first filter portion 321 are respectively used to filter light of different colors.

[0090] In this embodiment, the light reflected by the marked film layer 210 will be filtered by the first filter portion 321 after entering any positioning hole 311, and the light passing through the first filter portion 321 will be filtered again by the second filter portion 322. Since the second filter portion 322 and the first filter portion 321 are respectively used to filter light of different colors, the first filter structure 320 can filter light of more colors.

[0091] In some embodiments, the second filter portion 322 is configured as a green filter layer.

[0092] In this embodiment, the second filter portion 322 filters red light.

[0093] In some embodiments, the first filter structure 320 includes a third filter portion (not shown), which covers the side of the second filter portion 322 away from the shading layer 310, and the third filter portion, the second filter portion 322 and the first filter portion 321 are respectively used to filter light of different colors.

[0094] In some embodiments, the third filter portion is configured as a blue filter layer.

[0095] Specifically, at least one of the first filter part 321, the second filter part and the third filter part includes a CF film layer, which has a high transmittance to red light, green light and blue light, and absorbs light of other wavelengths, so as to improve the purity of the light emitted by the display panel 10.

[0096] See also Figure 4 In some embodiments, the display panel 10 includes a light-emitting device layer 400 , which is located in the display area AA. The light-emitting device layer 400 is disposed between the driving array layer 200 and the light-shielding layer 310 of the display area AA, and the light-emitting device layer 400 includes a plurality of light-emitting devices 410 .

[0097] In this embodiment, the shading layer 310 may include a BM film layer, which has a strong ability to absorb light and is used to reduce light mixing between adjacent light-emitting devices 410 in the light-emitting device layer 400 and absorb part of the reflected light of the light-emitting device layer 400.

[0098] In some embodiments, the light emitting device 410 includes a first electrode 411 , a light emitting layer 412 , and a second electrode 413 which are sequentially stacked along a side away from the driving array layer 200 and facing away from the substrate 100 .

[0099] Specifically, the first electrode 411 is an anode, and the second electrode 413 is a cathode.

[0100] In some embodiments, the composite filter film layer 300 includes a plurality of second filter structures 330, a plurality of light-transmitting holes 312 arranged at intervals are provided on the light-shielding layer 310 located in the display area AA, the plurality of second filter structures 330 are arranged corresponding to the plurality of light-transmitting holes 312, the second filter structures 330 are at least partially arranged in the corresponding light-transmitting holes 312, the plurality of light-transmitting holes 312 are arranged corresponding to the plurality of light-emitting devices 410, and the projection of the light-transmitting holes 312 on the substrate 100 at least partially overlaps with the projection of the corresponding light-emitting device 410 on the substrate 100.

[0101] Specifically, the second filter structure 330 may include a CF film layer. The CF film layer has a high transmittance to red light, green light and blue light, and has a high absorption capacity to light of other wavelengths, so as to improve the purity of the light emitted by the display panel 10 .

[0102] See also Figure 4 In some embodiments, the display panel 10 includes a thin film encapsulation layer 500, which is located in the display area AA, the non-display area NAA and the hole area HA. ​​The thin film encapsulation layer 500 located in the non-display area NAA is arranged between the light shading layer 310 and the driving array layer 200, and the thin film encapsulation layer 500 located in the display area AA is arranged between the light emitting device layer 400 and the light shading layer 310.

[0103] In this embodiment, the thin film encapsulation layer 500 located in the non-display area NAA can prevent external water vapor and oxygen from penetrating into the drive array layer 200 located in the non-display area NAA. The thin film encapsulation layer 500 located in the display area AA can prevent external water vapor and oxygen from penetrating into the light-emitting device layer 400 and the drive array layer 200 located in the display area AA. In summary, the thin film encapsulation layer 500 can prevent external water vapor and oxygen from penetrating into the light-emitting device layer 400 and the drive array layer 200, thereby ensuring the structural stability and service life of the light-emitting device layer 400 and the drive array layer 200.

[0104] In some embodiments, the thin film encapsulation layer 500 includes a first inorganic encapsulation layer 510 , an organic encapsulation layer 520 , and a second inorganic encapsulation layer 530 which are sequentially stacked along a side away from the light emitting device layer 400 and away from the substrate 100 .

[0105] In some embodiments, the second electrode 413 in the light emitting device 410 near the non-display area NAA at least partially extends to between the driving array layer 200 and the thin film encapsulation layer 500 in the non-display area NAA.

[0106] In this embodiment, light reflected by the second electrode 413 between the driving array layer 200 and the thin film encapsulation layer 500 in the non-display area NAA will be filtered by the first filter structure 320 filled in the corresponding positioning hole 311 after entering any positioning hole 311 .

[0107] See also Figure 4 In some embodiments, the display panel 10 includes a touch module layer 600 . The touch module layer 600 is located in the display area AA and is disposed between the thin film encapsulation layer 500 and the composite filter film layer 300 .

[0108] In this embodiment, a plurality of touch elements (not shown) arranged in an array are disposed in the touch module layer 600 to realize the touch function of the display panel 10 .

[0109] In some embodiments, the display panel 10 includes an adhesive layer 700 . The adhesive layer 700 is located in the display area AA and is disposed between the composite filter film layer 300 and the touch module layer 600 .

[0110] In this embodiment, the bonding layer 700 bonds the composite filter film layer 300 and the touch module layer 600 together.

[0111] See also Figure 4 In some embodiments, the driving array layer 200 includes a plurality of first transistors 220, the plurality of first transistors 220 are located in the display area AA, the plurality of first transistors 220 are arranged corresponding to the plurality of light-emitting devices 410, the first electrode 411 of each light-emitting device 410 is electrically connected to the first transistor 220 corresponding to the light-emitting device 410, and the first transistor 220 is used to provide an electrical signal to the corresponding light-emitting device 410.

[0112] In some embodiments, the first transistor 220 includes a first active layer 221, a first gate 222, a first source 223 and a first drain 224, the first source 223 and the first drain 224 are electrically connected to the first active layer 221, respectively, and the first electrode 411 of each light-emitting device 410 is electrically connected to the first source 223 in the corresponding first transistor 220.

[0113] It should be supplemented that each first active layer 221 of the display area AA is disposed on the same layer as the marking film layer 210 of the non-display area NAA.

[0114] In some embodiments, the driving array layer 200 includes a buffer layer 230 . The buffer layer 230 is disposed between the marking film layer 210 and the substrate 100 and is located in the display area AA, the non-display area NAA, and the hole area HA.

[0115] In some embodiments, the driving array layer 200 includes a plurality of shielding layers 240 located between the substrate 100 and the buffer layer 230 of the display area AA, and the plurality of shielding layers 240 are arranged in one-to-one correspondence with the plurality of first transistors 220, and the projection of each shielding layer 240 on the substrate 100 covers the projection of the first active layer 221 in the corresponding first transistor 220 on the substrate 100.

[0116] In some embodiments, the driving array layer 200 includes a first gate insulating layer 250, which covers the side of the marking film layer 210 away from the buffer layer 230 and is located in the display area AA, the non-display area NAA and the hole area HA, and the first active layer 221 is arranged between the buffer layer 230 and the first gate insulating layer 250.

[0117] In some embodiments, the driving array layer 200 includes an interlayer insulating layer 260, which is disposed on a side of the first gate insulating layer 250 away from the buffer layer 230, the interlayer insulating layer 260 is located in the display area AA, the non-display area NAA and the hole area HA, and the first gate 222 is disposed between the interlayer insulating layer 260 and the first gate insulating layer 250.

[0118] In some embodiments, the interlayer insulating layer 260 includes a first insulating layer 261 and a second insulating layer 262 stacked in sequence along a side away from the first gate insulating layer 250 and away from the buffer layer 230 .

[0119] In some embodiments, the driving array layer 200 includes an interlayer dielectric layer 270, the interlayer dielectric layer 270 includes a first interlayer dielectric layer 271, which is arranged on a side of the interlayer insulating layer 260 away from the first gate insulating layer 250, the first interlayer dielectric layer 271 is located in the display area AA, the non-display area NAA and the hole area HA, and the first source 223 and the first drain 224 are at least partially arranged on a side of the first interlayer dielectric layer 271 away from the interlayer insulating layer 260.

[0120] In some embodiments, orthographic projections of the first gate 222 and the first active layer 221 on the substrate 100 at least partially overlap.

[0121] See also Figure 4 In some embodiments, the interlayer dielectric layer 270 includes a second interlayer dielectric layer 272, which is arranged on a side of the first interlayer dielectric layer 271 away from the buffer layer 230, and the second interlayer dielectric layer 272 is located in the display area AA, the non-display area NAA and the hole area HA, and the first source 223 and the first drain 224 are at least partially arranged on a side of the second interlayer dielectric layer 272 away from the interlayer insulating layer 260.

[0122] In some embodiments, the driving array layer 200 includes a first flat layer PLN1, which is disposed on a side of the second interlayer dielectric layer 272 away from the buffer layer 230, and the first flat layer PLN1 is located in the display area AA, the non-display area NAA and the hole area HA, and the first source 223 and the first drain 224 are at least partially disposed on one side of the first flat layer PLN1 and the second interlayer dielectric layer 272.

[0123] In some embodiments, the driving array layer 200 includes a plurality of connecting electrodes 280, and the plurality of connecting electrodes 280 are arranged corresponding to the plurality of first transistors 220. The connecting electrodes 280 are electrically connected to the first source 223 in the corresponding first transistor 220, and a portion of the connecting electrodes 280 is located on a side of the first flat layer PLN1 away from the buffer layer 230. The first electrode 411 in the light-emitting device 410 is electrically connected to the connecting electrode 280 connected to the corresponding first transistor 220.

[0124] In some embodiments, the driving array layer 200 includes a second flat layer PLN2 and a pixel definition layer PDL, the second flat layer PLN2 is arranged on the side of the first flat layer PLN1 away from the buffer layer 230, the second flat layer PLN2 is located in the display area AA, the non-display area NAA and the hole area HA, the connecting electrode 280 is located between the second flat layer PLN2 and the first flat layer PLN1, the pixel definition layer PDL is located in the display area AA, the pixel definition layer PDL is arranged on the side of the second flat layer PLN2 away from the first flat layer PLN1, the first electrode 411 of each light-emitting device 410 is arranged between the second flat layer PLN2 and the pixel definition layer PDL, and is electrically connected to the connecting electrode 280, and a plurality of pixel openings (not shown in the figure) are provided on the pixel definition layer PDL, and the plurality of pixel openings are arranged corresponding to the plurality of light-emitting devices 410, and each pixel opening exposes the first electrode 411 of the corresponding light-emitting device 410.

[0125] In some embodiments, the light emitting layer 412 of the light emitting device 410 is located in the corresponding pixel opening, and the second electrode 413 of the light emitting device 410 is located on the side of the pixel definition layer PDL away from the second planar layer PLN2 and covers the corresponding pixel opening.

[0126] In some embodiments, the driving array layer 200 includes a plate 290, and the plate 290 includes a first plate 291 and a second plate 292. The first plate 291 is located between the first gate insulating layer 250 and the first insulating layer 261, and the first plate 291 and the first gate 222 are arranged in the same layer; the second plate 292 is located between the first insulating layer 261 and the second insulating layer 262. The first plate 291 and the second plate 292 together constitute a capacitor structure (not shown in the figure).

[0127] In some embodiments, the electrode plate 290 includes a fourth electrode plate 294 . The fourth electrode plate 294 is located between the first planar layer PLN1 and the second planar layer PLN2 and is disposed in the same layer as the connection electrode 280 .

[0128] In some embodiments, the driving array layer 200 includes a second transistor 800 located in the display area AA, the second transistor 800 is arranged corresponding to the first transistor 220, and the second transistor 800 adopts a dual-gate structure, that is, it includes a second active layer 810, a second gate 820 and a third gate 830. The second active layer 810 is located between the second insulating layer 262 and the first interlayer dielectric layer 271, the second gate 820 is located between the first interlayer dielectric layer 271 and the second interlayer dielectric layer 272, and the third gate 830 is located at the second electrode 292. The electrode plate 290 includes two third electrodes 293, both of which are electrically connected to the second active layer 810 and are partially located between the second interlayer dielectric layer 272 and the first flat layer PLN1. One of the two third electrodes 293 serves as the source of the second transistor 800, i.e., the second source 840, and the other third electrode plate 293 serves as the drain of the second transistor 800, i.e., the second drain 850. The third electrode 293 serving as the second drain 850 is electrically connected to the first gate 222 of the first transistor 220.

[0129] It should be supplemented that the second transistor 800 plays the role of a switch, and is used to select the current light emitting device 410. The first transistor 220 plays the role of a driver, and is used to drive the current light emitting device 410.

[0130] The present application also proposes a display device (not shown), comprising the display panel 10 of any one of the aforementioned items.

[0131] In the display device of the present embodiment, during the process of opening a through hole (unmarked) for placing a camera in the hole area HA of the display panel 10, the hole opening device will identify the projection of the marking film layer 210 in the driving array layer 200 on the substrate 100 through different first filter structures 320 and the positioning holes 311 corresponding to the different first filter structures 320, and the overlapping part with the projection of different positioning holes 311 on the substrate 100, and accurately locate the position of the through hole to be opened in the hole area HA of the display panel 10 according to the recognition result, thereby ensuring that the through hole is opened at the target position on the display panel 10 and improving the position accuracy of the opened through hole. In addition, since each first filter structure 320 is at least partially disposed in the corresponding positioning hole 311 and the positioning hole 311 is filled with the first filter structure 320, the light reflected by the marking film layer 210 cannot be completely irradiated to the outside world from the positioning hole 311. Part of the light reflected by the marking film layer 210 will be filtered by the first filter structure 320, and part of the light reflected by the marking film layer 210 cannot penetrate the first filter structure 320 in the positioning hole 311 to irradiate to the outside world. Therefore, no obvious reflection will be generated at the positioning hole 311 on the display panel 10.

[0132] In summary, the display device in this embodiment, by setting the first filter structure 320 in the positioning hole 311, weakens the intensity of the light emitted from the marking film layer 210 and irradiated to the outside through the positioning hole 311, reduces the light emission at the positioning hole 311 on the display panel 10, and improves the appearance of the display panel 10.

[0133] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0134] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A display panel, comprising an opening area, a display area at least partially surrounding the opening area, and a non-display area between the opening area and the display area, wherein: The display panel comprises: substrate; A driving array layer, disposed on one side of the substrate; A composite filter film layer is arranged on a side of the driving array layer away from the substrate and is located in the display area, the non-display area and the hole area; the composite filter film layer includes a light shielding layer and a plurality of first filter structures, the light shielding layer located in the non-display area is provided with a plurality of positioning holes arranged at intervals, the positioning holes penetrate the light shielding layer along the thickness direction of the light shielding layer, the plurality of first filter structures are arranged correspondingly to the plurality of positioning holes, and at least a portion of the first filter structure is arranged in the corresponding positioning holes; The driving array layer includes a marking film layer located in the non-display area, and a projection of the marking film layer on the substrate overlaps with a projection of the positioning hole on the substrate.

2. The display panel according to claim 1, characterized in that: The plurality of first light filtering structures are arranged in one-to-one correspondence with the plurality of positioning holes; Optionally, the plurality of positioning holes are arranged around the hole area.

3. The display panel according to claim 1, characterized in that: The marking film layer includes a plurality of marking portions, and the plurality of marking portions surround the hole area; The plurality of positioning holes are arranged corresponding to the plurality of marking portions, and the projections of the marking portions on the substrate at least partially overlap with the projections of the corresponding positioning holes on the substrate; Optionally, the plurality of positioning holes are arranged in one-to-one correspondence with the plurality of marking portions.

4. The display panel according to claim 1, characterized in that: The first light filtering structure covers the side of the light shielding layer away from the substrate and fills at least a portion of the positioning hole along the depth direction of the positioning hole; Optionally, in a direction in which the driving array layer is away from the substrate, a distance between a side of the first light filtering structure away from the light shielding layer and a side of the light shielding layer away from the driving array layer is greater than 10 um; Optionally, the first light filtering structure comprises a first light filtering portion, the first light filtering portion fills at least a portion of the positioning hole along a depth direction of the positioning hole, and a projection of the first light filtering portion on the substrate covers a projection of the positioning hole on the substrate; Optionally, the first filter portion is configured as a red filter layer; Optionally, the first filter structure includes a second filter portion, the second filter portion covers a side of the first filter portion away from the light shielding layer, and the second filter portion and the first filter portion are respectively used to filter light of different colors; Optionally, the second filter portion is configured as a green filter layer.

5. The display panel according to claim 1, characterized in that: The display panel comprises a light emitting device layer, the light emitting device layer is located in the display area, the light emitting device layer is arranged between the driving array layer and the light shielding layer in the display area, and the light emitting device layer comprises a plurality of light emitting devices; Optionally, the light emitting device comprises a first electrode, a light emitting layer and a second electrode which are sequentially stacked along a side away from the driving array layer and away from the substrate; Optionally, the composite filter film layer includes a plurality of second filter structures, a plurality of light-transmitting holes arranged at intervals are provided on the light-shielding layer located in the display area, the plurality of second filter structures are arranged corresponding to the plurality of light-transmitting holes, and the second filter structures are at least partially arranged in the corresponding light-transmitting holes; The plurality of light-transmitting holes are arranged corresponding to the plurality of light-emitting devices, and projections of the light-transmitting holes on the substrate at least partially overlap with projections of the corresponding light-emitting devices on the substrate.

6. The display panel according to claim 5, characterized in that: The display panel comprises a thin film encapsulation layer, and the thin film encapsulation layer is located in the display area, the non-display area and the hole area; The thin film encapsulation layer located in the non-display area is arranged between the light shielding layer and the driving array layer, and the thin film encapsulation layer located in the display area is arranged between the light emitting device layer and the light shielding layer; Optionally, the thin film encapsulation layer comprises a first inorganic encapsulation layer, an organic encapsulation layer and a second inorganic encapsulation layer which are sequentially stacked along a side away from the light-emitting device layer and away from the substrate; Optionally, the second electrode in the light emitting device close to the non-display area at least partially extends to between the driving array layer and the thin film encapsulation layer in the non-display area.

7. The display panel according to claim 6, characterized in that: The display panel comprises a touch module layer, which is located in the display area and disposed between the thin film encapsulation layer and the composite filter film layer; Optionally, the display panel includes an adhesive layer, and the adhesive layer is located in the display area and is arranged between the composite filter film layer and the touch module layer.

8. The display panel according to claim 6, characterized in that: The driving array layer includes a plurality of first transistors, the plurality of first transistors are located in the display area, the plurality of first transistors are arranged corresponding to the plurality of light-emitting devices, the first electrode of each of the light-emitting devices is electrically connected to the first transistor corresponding to the light-emitting device, and the first transistor is used to provide an electrical signal for the corresponding light-emitting device; Optionally, the first transistor includes a first active layer, a first gate, a first source and a first drain, the first source and the first drain are electrically connected to the first active layer, respectively, and the first electrode of each of the light-emitting devices is electrically connected to the first source in the corresponding first transistor; Optionally, the driving array layer includes a buffer layer, which is disposed between the marking film layer and the substrate and is located in the display area, the non-display area and the hole area; Optionally, the driving array layer includes a first gate insulating layer, which covers a side of the marking film layer away from the buffer layer and is located in the display area, the non-display area and the hole area, and the first active layer is arranged between the buffer layer and the first gate insulating layer; Optionally, the driving array layer includes an interlayer insulating layer, which is disposed on a side of the first gate insulating layer away from the buffer layer, the interlayer insulating layer is located in the display area, the non-display area and the hole area, and the first gate is disposed between the interlayer insulating layer and the first gate insulating layer; Optionally, the driving array layer includes an interlayer dielectric layer, the interlayer dielectric layer includes a first interlayer dielectric layer, which is arranged on a side of the interlayer insulating layer away from the first gate insulating layer, the first interlayer dielectric layer is located in the display area, the non-display area and the hole area, and the first source and the first drain are at least partially arranged on a side of the first interlayer dielectric layer away from the interlayer insulating layer; Optionally, orthographic projections of the first gate and the first active layer on the substrate at least partially overlap.

9. The display panel according to claim 8, characterized in that: The interlayer dielectric layer comprises a second interlayer dielectric layer, which is arranged on a side of the first interlayer dielectric layer away from the buffer layer, the second interlayer dielectric layer is located in the display area, the non-display area and the hole area, and the first source electrode and the first drain electrode are at least partially arranged on a side of the second interlayer dielectric layer away from the interlayer insulating layer; Optionally, the driving array layer includes a first flat layer, the first flat layer is arranged on a side of the second interlayer dielectric layer away from the buffer layer, the first flat layer is located in the display area, the non-display area and the hole area, and the first source and the first drain are at least partially arranged on one side of the first flat layer and the second interlayer dielectric layer; Optionally, the driving array layer includes a plurality of connecting electrodes, the plurality of connecting electrodes are arranged corresponding to the plurality of first transistors, the connecting electrodes are electrically connected to the first source electrodes in the corresponding first transistors, and are partially located on a side of the first planar layer away from the buffer layer, and the first electrode in the light-emitting device is electrically connected to the connecting electrodes connected to the corresponding first transistors; Optionally, the driving array layer includes a second flat layer and a pixel definition layer, the second flat layer is arranged on a side of the first flat layer away from the buffer layer, the second flat layer is located in the display area, the non-display area and the hole area, the connecting electrode is located between the second flat layer and the first flat layer, the pixel definition layer is located in the display area, the pixel definition layer is arranged on a side of the second flat layer away from the first flat layer, the first electrode of each of the light-emitting devices is arranged between the second flat layer and the pixel definition layer, and is electrically connected to the connecting electrode, a plurality of pixel openings are arranged on the pixel definition layer, the plurality of pixel openings are arranged corresponding to the plurality of light-emitting devices, and each of the pixel openings exposes the first electrode of the corresponding light-emitting device; Optionally, the light-emitting layer of the light-emitting device is located in the corresponding pixel opening, and the second electrode of the light-emitting device is located on a side of the pixel definition layer away from the second planar layer and covers the corresponding pixel opening.

10. A display device, characterized in that: A display panel comprising any one of claims 1 to 9.

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