Display panel and display device

Abstract

A display panel and a display device, relating to the field of display technology. The display panel comprises a first display area (C) and at least one second display area (D) located on one side of the first display area (C), wherein the light transmittance of the second display area (D) is greater than that of the first display area (C); the display panel comprises a base substrate (200), a driving circuit layer (300) and a pixel light emitting layer (400) which are stacked in sequence; wherein the base substrate (200) comprises at least one organic material layer (210), wherein the at least one organic material layer (210) is provided with an anti-reflection groove (201), wherein the anti-reflection groove (201) at least partially overlaps with the second display area (D); and the thickness of the portion of the at least one organic material layer (210) close to the anti-reflection groove (201) gradually decreases in the direction from the first display area (C) to the second display area (D). The display panel can improve the accuracy of the sensing result of the photosensitive component (901).

Description

Technical Field

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

[0002] OLED (Organic Light Emitting Diode) display panels have the advantages of high color gamut, thinness, and flexibility, and are increasingly widely used in the display field. However, in the prior art, the overall light transmittance of OLED display panels is relatively low, and the overall color is yellowish. This causes the color of the image obtained by the camera under the OLED display panel to be abnormal.

[0003] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0004] The purpose of the present disclosure is to overcome the deficiencies of the above-mentioned prior art and provide a display panel and a display device to improve the accuracy of the sensing results of the photosensitive component.

[0005] According to one aspect of the present disclosure, there is provided a display panel, comprising a first display area and at least one second display area located on one side of the first display area, wherein the light transmittance of the second display area is greater than that of the first display area;

[0006] The display panel comprises a base substrate, a driving circuit layer and a pixel light emitting layer which are stacked in sequence;

[0007] In which, the base substrate includes at least one layer of organic material layer, and the at least one layer of organic material layer is provided with an anti-reflection groove, and the anti-reflection groove at least partially overlaps with the second display area; the thickness of the portion of the at least one layer of organic material layer close to the anti-reflection groove gradually decreases in the direction from the first display area to the second display area.

[0008] In an exemplary embodiment of the present disclosure, at a position close to the anti-reflection groove, the slope angle of the at least one organic material layer is 10° to 60°.

[0009] In an exemplary embodiment of the present disclosure, in a direction from the first display area to the second display area, a width of an orthographic projection of a side wall of the at least one organic material layer close to the anti-reflection groove on the base substrate is no greater than 30 micrometers.

[0010] In an exemplary embodiment of the present disclosure, the orthographic projection of the anti-reflection groove on the base substrate covers the second display area.

[0011] In an exemplary embodiment of the present disclosure, the base substrate comprises a first organic material layer, a first barrier layer, and a second organic material layer stacked in sequence, and the driving circuit layer is arranged on a side of the second organic material layer away from the first organic material layer;

[0012] The anti-reflection groove is arranged on a side of the second organic material layer away from the first organic material layer.

[0013] In an exemplary embodiment of the present disclosure, the anti-reflection groove penetrates the second organic material layer and exposes a portion of the first barrier layer.

[0014] In an exemplary embodiment of the present disclosure, the base substrate comprises a first organic material layer, a first barrier layer, and a second organic material layer stacked in sequence, and the driving circuit layer is arranged on a side of the second organic material layer away from the first organic material layer;

[0015] The first organic material layer is provided with the anti-reflection groove on a side close to the driving circuit layer.

[0016] In an exemplary embodiment of the present disclosure, the anti-reflection groove penetrates the first organic material layer.

[0017] In an exemplary embodiment of the present disclosure, the first barrier layer has a hollow hole exposing the anti-reflection groove; an edge of the hollow hole coincides with an edge of the opening of the anti-reflection groove close to the first barrier layer.

[0018] In an exemplary embodiment of the present disclosure, the light transmittance of the second organic material layer is greater than the light transmittance of the first organic material layer.

[0019] In an exemplary embodiment of the present disclosure, the size of the opening of the anti-reflection groove is larger than the size of the bottom of the anti-reflection groove.

[0020] In an exemplary embodiment of the present disclosure, the display panel further includes a first filling material layer, wherein the first filling material layer is located between the base substrate and the driving circuit layer and is located in the anti-reflection groove;

[0021] The light transmittance of the first filling material layer is greater than the light transmittance of the first organic material layer.

[0022] In an exemplary embodiment of the present disclosure, the base substrate comprises a first organic material layer, a first barrier layer, and a second organic material layer stacked in sequence, and the driving circuit layer is arranged on a side of the second organic material layer away from the first organic material layer;

[0023] The first organic material layer is provided with the anti-reflection groove on a side away from the driving circuit layer.

[0024] In an exemplary embodiment of the present disclosure, the display panel further includes a second filling material layer, and the second filling material layer is embedded in the anti-reflection groove;

[0025] The light transmittance of the second filling material layer is greater than the light transmittance of the first organic material layer.

[0026] In an exemplary embodiment of the present disclosure, the base substrate comprises a first organic material layer, a first barrier layer, and a second organic material layer stacked in sequence, the driving circuit layer is arranged on a side of the second organic material layer away from the first organic material layer; the anti-reflection groove is arranged in the second organic material layer;

[0027] A thinning groove is further provided on a side of the first organic material layer away from the driving circuit layer, and the orthographic projection of the thinning groove on the base substrate covers the second display area.

[0028] In an exemplary embodiment of the present disclosure, at a position close to the thinning groove, the slope angle of the first organic material layer is 80° to 90°.

[0029] In an exemplary embodiment of the present disclosure, the display panel further includes a third filling material layer, wherein the third filling material layer is embedded in the thinning groove; and the light transmittance of the third filling material layer is greater than the light transmittance of the first organic material layer.

[0030] In an exemplary embodiment of the present disclosure, the display panel further comprises a back film layer, which is located on a side of the base substrate away from the driving circuit layer; the back film layer is provided with an opening, and the second display area is located within the orthographic projection of the opening on the base substrate.

[0031] In an exemplary embodiment of the present disclosure, the display panel further comprises a second barrier layer and a buffer layer sequentially stacked between the base substrate and the driving circuit layer, and the buffer layer is located on a side of the second barrier layer away from the base substrate;

[0032] The display panel may further include a planarization layer located between the pixel light emitting layer and the driving circuit layer.

[0033] In an exemplary embodiment of the present disclosure, the display panel further includes a touch layer and a reflection reduction layer sequentially stacked on a side of the pixel light emitting layer away from the base substrate, and the reflection reduction layer includes a black matrix layer and a color filter layer.

[0034] According to another aspect of the present disclosure, a display device is provided, comprising the above-mentioned display panel and at least one photosensitive component, wherein the photosensitive component is located on a side of the display panel close to the base substrate and facing the second display area.

[0035] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification are used to explain the principles of the present disclosure. Obviously, the accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0037] Figure 1 The figure is a schematic diagram of a top view of a display panel in one embodiment of the present disclosure.

[0038] Figure 2 The figure is a schematic diagram of a top view of a display panel in one embodiment of the present disclosure.

[0039] Figure 3 It is a schematic diagram of a partial cross-sectional structure of a display panel in one embodiment of the present disclosure.

[0040] Figure 4 It is a schematic diagram of a partial cross-sectional structure of a display device in one embodiment of the present disclosure.

[0041] Figure 5 It is a schematic diagram of a partial cross-sectional structure of a display device in one embodiment of the present disclosure.

[0042] Figure 6 It is a schematic diagram of a partial cross-sectional structure of a display device in one embodiment of the present disclosure.

[0043] Figure 7 It is a schematic diagram of a partial cross-sectional structure of a display device in one embodiment of the present disclosure.

[0044] Figure 8 It is a schematic diagram of a partial cross-sectional structure of a display device in one embodiment of the present disclosure.

[0045] Fig. 9 It is a schematic diagram of a partial cross-sectional structure of a display device in one embodiment of the present disclosure.

[0046] Fig.10 It is a schematic diagram of a partial cross-sectional structure of a display device in one embodiment of the present disclosure.

[0047] Fig.11 It is a schematic diagram of a partial cross-sectional structure of a display device in one embodiment of the present disclosure.

[0048] Fig.12 It is a schematic diagram of a partial cross-sectional structure of a display device in one embodiment of the present disclosure.

[0049] Fig.13 It is a schematic diagram of a partial cross-sectional structure of a display device in one embodiment of the present disclosure.

[0050] Fig.14 It is a schematic diagram of a partial cross-sectional structure of a display device in one embodiment of the present disclosure.

[0051] Fig.15 It is a schematic diagram of a partial cross-sectional structure of a display device in one embodiment of the present disclosure.

[0052] Fig.16 It is a schematic diagram of a partial cross-sectional structure of a display device in one embodiment of the present disclosure.

[0053] Fig.17 It is a schematic diagram of a partial cross-sectional structure of a display device in one embodiment of the present disclosure.

[0054] Fig.18 It is a schematic structural diagram of a support substrate with a protruding layer in one embodiment of the present disclosure.

[0055] Fig.19 It is a schematic structural diagram of a support substrate with a protruding layer in one embodiment of the present disclosure.

[0056] Fig. 20 It is a schematic structural diagram of preparing a base substrate on a supporting substrate in one embodiment of the present disclosure.

[0057] Fig.21 It is a schematic structural diagram of a base substrate after peeling off the supporting substrate in one embodiment of the present disclosure.

[0058] Fig. 22 It is a schematic structural diagram of a base substrate after peeling off the supporting substrate in one embodiment of the present disclosure.

[0059] Fig.23 It is a schematic structural diagram of preparing a base substrate on a supporting substrate in one embodiment of the present disclosure.

[0060] Fig.24 It is a schematic structural diagram of a base substrate after peeling off the supporting substrate in one embodiment of the present disclosure.

[0061] Fig.25 It is a schematic structural diagram of a base substrate after peeling off the supporting substrate in one embodiment of the present disclosure.

[0062] Fig.26 It is a schematic diagram of a partial cross-sectional structure of a display device in one embodiment of the present disclosure.

[0063] Fig. 27 It is a schematic diagram of a partial cross-sectional structure of a display device in one embodiment of the present disclosure.

[0064] Description of reference numerals:

[0065] 100, back film layer; 110, adhesive layer; 101, opening; 200, substrate; 210, organic material layer; 211, first organic material layer; 212, first barrier layer; 213, second organic material layer; 201, anti-reflection groove; 202, hollow hole; 203, thinning groove; 300, drive circuit layer; 301, transistor; 310, semiconductor layer; 320, gate insulating layer; 330, gate layer; 340, interlayer dielectric layer; 350, source and drain metal layer; 400, pixel light emitting layer; 410, pixel electrode layer; 420, pixel definition layer; 430, support column layer; 440, Organic light-emitting functional layer; 450, common electrode layer; 500, thin film encapsulation layer; 510, first inorganic encapsulation layer; 520, organic encapsulation layer; 530, second inorganic encapsulation layer; 600, touch function layer; 700, anti-reflection layer; 801, cover plate; 802, optical adhesive layer; 803, second barrier layer; 804, buffer layer; 805, planarization layer; 806, first filling material layer; 807, second filling material layer; 808, third filling material layer; 901, photosensitive component; 902, supporting substrate; 903, protruding layer; A, peripheral area; B, display area; C, first display area; D, second display area. DETAILED DESCRIPTION

[0066] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present disclosure will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted. In addition, the drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale.

[0067] The terms "a", "an", "the", "said" and "at least one" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may exist in addition to the listed elements / components / etc.; the terms "first", "second" and "third" etc. are used merely as labels and are not intended to limit the quantity of their objects.

[0068] In the related art, the OLED display panel may include a base substrate, a driving circuit layer and a pixel light-emitting layer stacked in sequence. Among them, a pixel driving circuit is provided in the driving circuit layer, and each pixel driving circuit is used to drive each pixel in the pixel light-emitting layer one by one. In order to improve the flexibility of the display panel, the base substrate may contain organic materials, for example, polyimide materials may be used. However, in order to effectively support each film layer on the display panel, the base substrate needs to meet a certain mechanical strength, which leads to the addition of a variety of additives to the organic material of the base substrate, and these additives often lead to a decrease in the absorbance of the base substrate and different absorbances for light of different wavelengths. For example, in the related art, the polyimide material used as the base substrate often has a high light absorptivity, and a relatively large absorptivity for blue light, which makes the display panel have a higher yellow coefficient.

[0069] The present disclosure provides a display panel, see Figure 1 and Figure 2 The display panel has a first display area C and at least one second display area D located on one side of the first display area C, and the transmittance of the second display area D is greater than that of the first display area C.

[0070] See also Figures 4 to 17 The display panel includes a base substrate 200, a driving circuit layer 300 and a pixel light emitting layer 400 which are sequentially stacked. The base substrate 200 includes at least one organic material layer 210, and at least one organic material layer 210 is provided with an anti-reflection groove 201, and the anti-reflection groove 201 at least partially overlaps with the second display area D; the thickness of the portion of the at least one organic material layer 210 close to the anti-reflection groove 201 gradually decreases in the direction from the first display area C to the second display area D.

[0071] In the present disclosure, the display panel has a second display area D with higher light transmittance, and the second display area D can be used for the photosensitive component 901 to sense the light on the light-emitting side of the display panel. In other words, in a display device using the display panel, the photosensitive component 901 can be arranged on the back of the display panel and facing the second display area D. The second display area D has a higher light transmittance, which can improve the accuracy of the sensing result of the photosensitive component 901, for example, improve the accuracy of the image captured by the camera.

[0072] The base substrate 200 of the display panel is provided with an anti-reflection groove 201, and the anti-reflection groove 201 at least partially overlaps with the second display area D, so that the anti-reflection groove 201 can reduce the absorption of the base substrate 200 on the light transmitted from the second display area D, thereby improving the light transmittance of the display panel in the second display area D. The thickness of the portion of the at least one organic material layer 210 of the base substrate 200 close to the anti-reflection groove 201 gradually decreases in the direction from the first display area C to the second display area D; this makes the side wall of the anti-reflection groove 201 not perpendicular to the plane where the base substrate 200 is located, avoiding the adverse effect of the vertical arrangement of the side wall of the anti-reflection groove 201 on the driving circuit layer 300 and the pixel light-emitting layer 400, thereby ensuring the display image quality of the display panel.

[0073] The structure, principle and effect of the display panel disclosed in the present invention are further explained and illustrated below in conjunction with the accompanying drawings.

[0074] The present disclosure provides a display panel, see Figure 3 The display panel includes a base substrate 200, a driving circuit layer 300 and a pixel light emitting layer 400 which are stacked in sequence. The driving circuit layer 300 may be formed with a plurality of pixel driving circuits, and the pixel light emitting layer 400 may be formed with a plurality of organic electroluminescent diodes as sub-pixels; each pixel driving circuit is used to drive a corresponding sub-pixel.

[0075] In the driving circuit layer 300, any pixel driving circuit may include a thin film transistor 301 and a storage capacitor. The thin film transistor may be a top-gate thin film transistor, a bottom-gate thin film transistor or a dual-gate thin film transistor; the material of the active layer of the thin film transistor may be an amorphous silicon semiconductor material, a low-temperature polycrystalline silicon semiconductor material, a metal oxide semiconductor material, an organic semiconductor material or other types of semiconductor materials; the thin film transistor may be an N-type thin film transistor or a P-type thin film transistor. In one embodiment of the present disclosure, the thin film transistor 301 is a low-temperature polycrystalline silicon transistor.

[0076] The driving circuit layer 300 may include a semiconductor layer 310, a gate insulating layer 320, a gate layer 330, an interlayer dielectric layer 340, and a source-drain metal layer 350, etc., stacked between the substrate 200 and the pixel light-emitting layer 400. Among them, each thin film transistor 301 and a storage capacitor may be formed by film layers such as a semiconductor layer 310, a gate insulating layer 320, a gate layer 330, an interlayer dielectric layer 340, and a source-drain metal layer 350. Among them, the positional relationship of each film layer can be determined according to the film layer structure of the thin film transistor 301. For example, in one embodiment of the present disclosure, the driving circuit layer 300 may include a semiconductor layer 310, a gate insulating layer 320, a gate layer 330, an interlayer dielectric layer 340, and a source-drain metal layer 350, which are stacked in sequence, and the thin film transistor 301 formed in this way is a top-gate thin film transistor 301. For another example, in another embodiment of the present disclosure, the driving circuit layer may include a gate layer, a gate insulating layer, a semiconductor layer, an interlayer dielectric layer and a source-drain metal layer stacked in sequence, and the thin film transistor formed in this way is a bottom-gate thin film transistor. The driving circuit layer may also adopt a double gate layer structure, that is, the gate layer may include a first gate layer and a second gate layer, and the gate insulating layer may include a first gate insulating layer for isolating the semiconductor layer and the first gate layer, and a second gate insulating layer for isolating the first gate layer and the second gate layer. For example, in one embodiment of the present disclosure, the driving circuit layer may include a semiconductor layer, a first gate insulating layer, a first gate layer, a second gate insulating layer, a second gate layer, an interlayer dielectric layer and a source-drain metal layer stacked in sequence on one side of the substrate.

[0077] In one embodiment of the present disclosure, see Fig.26 , transistors may not be provided in the second display area D, so as to reduce the influence of the pixel driving circuit on the transmittance. The pixel driving circuit of each sub-pixel located in the second display area D may be provided in the first display area C. Of course, in other embodiments of the present disclosure, see Fig.16 , transistors may also be provided in the second display area D. The density of the pixel driving circuits in the second display area D may be the same as that in the first display area C, or may be lower than that in the first display area C.

[0078] Optionally, the driving circuit layer 300 may further include a passivation layer. The passivation layer may be disposed on a surface of the source-drain metal layer 350 away from the base substrate 200 , so as to protect the source-drain metal layer 350 .

[0079] Optionally, the display panel may further include a buffer material layer disposed between the base substrate 200 and the driving circuit layer 300, and the semiconductor layer 310, the gate layer 330, etc. are all located on the side of the buffer material layer away from the base substrate 200. The material of the buffer material layer may be an inorganic insulating material such as silicon oxide, silicon nitride, etc. The buffer material layer may be a single inorganic material layer or a multi-layered inorganic material layer. For example, in one embodiment of the present disclosure, see Figure 3 The buffer material layer may include a second barrier layer 803 on the side close to the base substrate 200 and a buffer layer 804 on the side of the second barrier layer 803 away from the base substrate 200. The second barrier layer 803 is used to prevent ions and other components in the base substrate 200 from penetrating into the driving circuit layer 300, so that the driving circuit layer 300 maintains stable performance. The buffer layer 804 can improve the bonding force between the driving circuit layer 300 and the base substrate 200, and provide a stable environment for the driving circuit layer 300.

[0080] See also Figure 3 , the pixel light-emitting layer 400 can be arranged on the side of the driving circuit layer 300 away from the base substrate 200, and it can include a pixel electrode layer 410, a pixel definition layer 420, a support column layer 430, an organic light-emitting functional layer 440 and a common electrode layer 450 stacked in sequence. Among them, the pixel electrode layer 410 has a plurality of pixel electrodes in the display area B of the display panel; the pixel definition layer 420 has a plurality of through pixel openings arranged one by one corresponding to the plurality of pixel electrodes in the display area B, and any pixel opening exposes at least a portion of the corresponding pixel electrode. The support column layer 430 includes a plurality of support columns in the display area B, and the support columns are located on the surface of the pixel definition layer 420 away from the base substrate 200, so as to support the fine metal mask (Fine Metal Mask, FMM) during the evaporation process. The organic light-emitting functional layer 440 at least covers the pixel electrodes exposed by the pixel definition layer 420. Among them, the organic light-emitting functional layer 440 may include an organic electroluminescent material layer, and may include one or more of a hole injection layer, a hole transport layer, an electron blocking layer, a hole blocking layer, an electron transport layer and an electron injection layer. The various film layers of the organic light-emitting functional layer 440 can be prepared by an evaporation process, and a fine metal mask or an open mask can be used to define the pattern of each film layer during evaporation. The common electrode layer 450 can cover the organic light-emitting functional layer 440 in the display area B. In this way, the pixel electrode, the common electrode layer 450 and the organic light-emitting functional layer 440 located between the pixel electrode and the common electrode layer 450 form an organic electroluminescent diode, and any organic electroluminescent diode can be used as a sub-pixel of the display panel.

[0081] In some embodiments, the pixel light emitting layer 400 may further include a light extraction layer located on a side of the common electrode layer 450 away from the base substrate 200 to enhance the light extraction efficiency of the organic light emitting diode.

[0082] In one embodiment of the present disclosure, in the second display area D, the pixel electrode and the common electrode are both transparent electrodes to improve the light transmittance of the second display area D. Of course, in other embodiments of the present disclosure, the pixel electrode of the second display area D may also have a reflective layer to ensure the light emitting brightness of the display panel in the second display area D.

[0083] Alternatively, see Figure 3 The display panel may further include a planarization layer 805 located between the driving circuit layer 300 and the pixel light emitting layer 400. The planarization layer 805 may provide a planarized surface for the pixel electrode. Optionally, the material of the planarization layer 805 may be an organic material.

[0084] Alternatively, see Figure 3 , the display panel may further include a thin film encapsulation layer 500. The thin film encapsulation layer 500 is disposed on the surface of the pixel light-emitting layer 400 away from the base substrate 200, and may include an inorganic encapsulation layer and an organic encapsulation layer 520 alternately stacked. Among them, the inorganic encapsulation layer can effectively block external moisture and oxygen, and prevent water and oxygen from invading the organic light-emitting functional layer 440 and causing material degradation. Optionally, the edge of the inorganic encapsulation layer may be located in the peripheral area A. The organic encapsulation layer 520 is located between two adjacent inorganic encapsulation layers to achieve planarization and reduce the stress between the inorganic encapsulation layers. Among them, the edge of the organic encapsulation layer 520 is located between the display area B and the edge of the inorganic encapsulation layer. For example, see Figure 3 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 stacked sequentially on a side of the pixel light emitting layer 400 away from the base substrate 200 .

[0085] Alternatively, see Figure 3 The display panel may further include a reflection reduction layer 700, which may be disposed on a side of the thin film encapsulation layer 500 away from the pixel light emitting layer 400, to reduce the reflection of ambient light by the display panel, thereby reducing the influence of ambient light on the display effect. In one embodiment of the present disclosure, see Fig. 27 The anti-reflection layer 700 may include a color filter layer 701 and a black matrix layer 702 stacked in layers, so that the light transmittance of the display panel can be reduced while reducing the interference of ambient light. In another embodiment of the present disclosure, the anti-reflection layer 700 may be a polarizer, for example, a patterned coated circular polarizer.

[0086] In one embodiment of the present disclosure, the reflection reduction layer 700 may not cover the second display area D to improve the light transmittance of the second display area D. In other words, the reflection reduction layer 700 may not be provided in the second display area D. Of course, in other embodiments of the present disclosure, see Fig.17 , the second display area D may also have a reflection reduction layer 700 to improve the display effect of the second display area D. Optionally, when the second display area D has a reflection reduction layer 700, the reflection reduction layer 700 may also be designed to be hollow in the second display area D, and the reflection reduction layer 700 only covers part of the second display area D and exposes part of the second display area D, so as to achieve a balance between improving the transmittance of the second display area D and improving the display effect of the second display area D.

[0087] Alternatively, see Figure 3 The display panel may further include a touch function layer 600, which is disposed on a side of the thin film encapsulation layer 500 away from the base substrate 200, for implementing a touch operation of the display panel. In one embodiment of the present disclosure, the touch function layer 600 may be disposed between the thin film encapsulation layer 500 and the anti-reflection layer 700.

[0088] Alternatively, see Figure 3 The display panel may further include a back film layer 100 , which may be disposed on a side of the base substrate 200 away from the pixel light emitting layer 400 to support the display panel. Further, the back film layer 100 may be connected to the base substrate 200 via an adhesive layer 110 .

[0089] Alternatively, see Figure 3 The display panel may further include a cover plate 801, which may be located at the outermost side of the light-emitting side of the display panel to protect the display panel. The cover plate 801 may be made of an inorganic light-transmitting material, such as glass. Of course, the cover plate 801 may also be made of a light-transmitting organic material. Optionally, the cover plate 801 may be adhered to other film layers of the display panel through an optical adhesive layer 802, such as being adhered to the side of the anti-reflection layer 700 of the display panel away from the base substrate 200.

[0090] Figure 1 and Figure 2 This is a top view of the structure of a display panel. Figure 1 and Figure 2 , the display panel may include a display area B and a peripheral area A surrounding the display area B. The display area B may include a first display area C and at least one second display area D on one side of the first display area C. In the first display area C and the second display area D, the pixel light emitting layer 400 may be provided with pixels so that the first display area C and the second display area D can both realize normal picture display.

[0091] Figures 4 to 171 is a cross-sectional schematic diagram of a display device using the display panel at a position close to the second display area D, and the display device includes at least one photosensitive component 901. The photosensitive components 901 can be arranged one-to-one with the second display areas D, and the photosensitive components 901 can face the corresponding second display areas D to receive light transmitted from the second display areas D. Figures 4 to 17 , the photosensitive component 901 may have a photosensitive area for sensing light, and the orthographic projection of the photosensitive area on the substrate 200 may be located in the second display area D. The photosensitive component 901 may be one or more light sensors, such as a camera, an optical fingerprint recognition chip, etc. In some embodiments, the photosensitive component 901 may be a camera, such as a CCD (charge coupled device) camera; in this way, the display device may implement an under-screen camera to increase the screen-to-body ratio of the display device.

[0092] Alternatively, see Figure 1 and Figure 2 , the second display area D can be embedded in the first display area C, that is, the first display area C surrounds the second display area D. When there are multiple second display areas D, the second display areas D can be dispersed or adjacent to each other.

[0093] Optionally, the shape of any second display area D may be circular, square, rhombus, regular hexagon or other shapes. In one embodiment of the present disclosure, the shape of the second display area D may be circular.

[0094] The number of second display areas D may be one or more, depending on the setting of the photosensitive component 901. In one embodiment of the present disclosure, the number of second display areas D is one. In this way, the display device may be provided with an under-screen photosensitive component 901, for example, an under-screen camera or an under-screen optical fingerprint recognition chip may be provided. In another embodiment of the present disclosure, the number of second display areas D is more than one. In this way, the display device may be provided with multiple photosensitive components 901, and any two photosensitive components 901 may be the same or different.

[0095] For example, see Figure 2 , the number of the second display areas D is three and they are arranged adjacent to each other. In this way, the display device can be provided with different photosensitive components 901 corresponding to the three second display areas D, for example, three different photosensitive components 901 including an imaging camera, a depth camera, and an infrared camera are provided.

[0096] Optionally, the number of anti-reflection grooves 201 is set in one-to-one correspondence with the number of second display areas D, and any second display area D at least partially overlaps with the corresponding anti-reflection groove 201. Further, the second display area D is located in the corresponding anti-reflection groove 201, that is, the orthographic projection of the anti-reflection groove 201 on the base substrate 200 covers the corresponding second display area D. In this way, it is possible to avoid changes in the transmittance of different positions in the second display area D caused by changes in the thickness of the organic material layer 210 of the base substrate 200. Of course, in other embodiments of the present disclosure, the number of anti-reflection grooves 201 may also be less than the number of second display areas D, so that one anti-reflection groove 201 can overlap with multiple second display areas D at least partially.

[0097] In the present disclosure, the anti-reflection groove 201 has two annular edges arranged opposite to each other, wherein the size of one edge is larger than the size of the other edge; the orthographic projection of the anti-reflection groove 201 on the base substrate 200 refers to the orthographic projection of the edge of the anti-reflection groove 201 with a smaller size on the base substrate 200, that is, refers to the orthographic projection of the groove bottom of the anti-reflection groove 201 on the base substrate 200. When the anti-reflection groove 201 penetrates at least one organic material layer 210, the smaller open end of the anti-reflection groove 201 can be used as the groove bottom of the anti-reflection groove 201, and the larger open end of the anti-reflection groove 201 can be used as the notch of the anti-reflection groove 201. Among them, when the notch of the anti-reflection groove 201 is located on the side of the groove bottom away from the base substrate 200, the anti-reflection groove 201 is an anti-reflection groove 201 opened toward the light exit side of the display panel, that is, a first anti-reflection groove 201. When the opening of the anti-reflection groove 201 is located at a side of the groove bottom close to the base substrate 200 , the anti-reflection groove 201 is an anti-reflection groove 201 opening toward the back side of the display panel, that is, a second anti-reflection groove 201 .

[0098] Optionally, the second display area D is completely located in the anti-reflection groove 201 , that is, the second display area D is completely located in the orthographic projection of the anti-reflection groove 201 on the base substrate 200 .

[0099] Alternatively, see Figures 4 to 17, at a position close to the anti-reflection groove 201, the slope angle of at least one layer of the organic material layer 210 is 10° to 60°. In other words, the angle between the side wall of the anti-reflection groove 201 and the plane where the display panel is located can be in the range of 10° to 60°, wherein the side wall of the anti-reflection groove 201 is the surface of the organic material layer 210 connecting the groove bottom and the groove of the anti-reflection groove 201. In this way, the slope of the anti-reflection groove 201 is relatively gentle, which can avoid the various conductive structures in the driving circuit layer 300 and the pixel light-emitting layer 400 from having a large climbing angle at the side wall position of the anti-reflection groove 201, thereby avoiding the occurrence of broken wires in the driving circuit layer 300 and the pixel light-emitting layer 400. Further optionally, the slope angle of the organic material layer 210 is in the range of 23° to 33°. Exemplarily, in one embodiment of the present disclosure, the slope angle of the organic material layer 210 is 28.23°.

[0100] Optionally, in the direction from the first display area C to the second display area D, the width of the orthographic projection of the sidewall of the at least one organic material layer 210 close to the anti-reflection groove 201 on the base substrate 200 is not greater than 30 microns. In other words, the width of the orthographic projection of the sidewall of the anti-reflection groove 201 on the base substrate 200 may be no greater than 30 microns. At the sidewall of the anti-reflection groove 201, it is difficult to ensure uniformity of the semiconductor layer 310 in the driving circuit layer 300, so it is not suitable to set the transistor 301 in the driving circuit layer 300 at this position. By reducing the width of the orthographic projection of the sidewall of the anti-reflection groove 201 on the base substrate 200, more sufficient space can be provided for setting the transistor.

[0101] Alternatively, see Figures 4 to 17 In the base substrate 200, at least one organic material layer 210 may include a first organic material layer 211 and a second organic material layer 213, and a first barrier layer 212 may be sandwiched between the first organic material layer 211 and the second organic material layer 213. The driving circuit layer 300 is disposed on a side of the second organic material layer 213 away from the first organic material layer 211.

[0102] In some embodiments, the first organic material layer 211 and the second organic material layer 213 can be made of materials that can meet the mechanical performance requirements of the base substrate 200, for example, some yellowish polyimide materials can be selected. The first barrier layer 212 can shield the first organic material layer 211 to prevent additives, ions, etc. in the first organic material layer 211 from penetrating into the driving circuit layer 300. Of course, the first barrier layer 212 can also be used to balance the stress between the first organic material layer 211 and the second organic material layer 213. In the display panel provided by the present disclosure, the organic material layer 210 of the base substrate 200 is provided with an anti-reflection groove 201, which realizes the thinning of the organic material layer 210 of the base substrate 200, so that the light transmittance of the display panel of the present disclosure in the second display area D is enhanced. In addition, due to the thinning of the organic material layer 210 in the base substrate 200, the difference in the absorption rate of the display panel in the second display area D to light of different wavelengths is reduced, and the yellow light coefficient of the display panel in the second display area D can be reduced. In this way, the accuracy of light detection by the photosensitive component 901 can be improved, for example, the image captured by the camera can be prevented from being yellowish as a whole. In addition, since the base substrate 200 can only have the anti-reflection groove 201 in the second display area D or its vicinity, and the size of the second display area D is often relatively small, it will not have a significant impact on the mechanical properties of the base substrate 200.

[0103] In some other embodiments, the first organic material layer 211 may be made of a material that can meet the mechanical performance requirements of the base substrate 200, for example, some yellowish polyimide materials may be selected. The first barrier layer 212 may shield the first organic material layer 211 to prevent additives, ions, etc. in the first organic material layer 211 from penetrating into the driving circuit layer 300. The second organic material layer 213 may be made of a highly light-transmitting material, for example, a colorless and transparent polyimide material, so that the light transmittance of the second organic material layer 213 is greater than that of the first organic material layer 211, thereby improving the light transmittance of the display panel.

[0104] Optionally, the thickness of the first organic material layer 211 and the second organic material layer 213 may be in the range of 3 to 20 micrometers. Preferably, the thickness of the first organic material layer 211 and the second organic material layer 213 may be in the range of 5 to 15 micrometers to meet the performance requirements of the display panel for the base substrate 200 .

[0105] Optionally, the thickness of the second organic material layer 213 may be not less than the thickness of the first organic material layer 211 . Further, the thickness of the second organic material layer 213 may be 1 to 4 times the thickness of the first organic material layer 211 .

[0106] For example, in one embodiment of the present disclosure, the thickness of the first organic material layer 211 is 5 microns, and the thickness of the second organic material layer 213 is 5 microns. For example, in another embodiment of the present disclosure, the thickness of the first organic material layer 211 is 5 microns, and the thickness of the second organic material layer 213 is 10 microns. For example, in another embodiment of the present disclosure, the thickness of the first organic material layer 211 is 5 microns, and the thickness of the second organic material layer 213 is 15 microns.

[0107] In some embodiments, see Figure 4 , the anti-reflection groove 201 can be arranged on the side of the second organic material layer 213 away from the first organic material layer 211. In other words, the second organic material layer 213 can be partially thinned to form the anti-reflection groove 201. In this way, the thickness of the organic material of the base substrate 200 in the second display area D can be reduced, thereby improving the light transmittance of the display panel in the second display area D.

[0108] Optionally, the depth of the anti-reflection groove 201 may be 0.5 to 1 times the thickness of the second organic material layer 213. Further, the depth of the anti-reflection groove 201 may be 0.8 to 1 times the thickness of the second organic material layer 213. In the present disclosure, the depth of the anti-reflection groove 201 refers to the distance between the plane where the notch of the anti-reflection groove 201 is located and the plane where the groove bottom of the anti-reflection groove 201 is located.

[0109] For example, participating Figure 5 , the anti-reflection groove 201 can penetrate the second organic material layer 213 and expose part of the first barrier layer 212. In other words, a via hole exposing the first barrier layer 212 can be opened on the second organic material layer 213, and the via hole can serve as the anti-reflection groove 201 opened on the base substrate 200. That is, the depth of the anti-reflection groove 201 is equal to the thickness of the second organic material layer 213. In this way, the organic material layer 210 of the base substrate 200 can be significantly thinned, and the light transmittance of the display panel in the second display area D can be improved.

[0110] Optionally, in this embodiment, the anti-reflection groove 201 can be a first anti-reflection groove. That is, the size of the notch of the anti-reflection groove 201 is larger than the size of the groove bottom of the anti-reflection groove 201. In this way, it can be ensured that the materials of the driving circuit and the pixel light-emitting layer 400 can cover the anti-reflection groove 201 in sequence, avoiding fracture at the anti-reflection groove 201. The anti-reflection groove 201 is also easy to prepare, for example, it is easy to prepare by a photolithography process or an exposure and development method.

[0111] Alternatively, see Fig.14When the anti-reflection groove 201 is provided in the second organic material layer 213, a thinning groove 203 may be further provided on the side of the first organic material layer 211 away from the driving circuit layer 300, and the orthographic projection of the thinning groove 203 on the base substrate 200 covers the second display area D, so as to further reduce the light transmittance of the display panel in the second display area D. In one embodiment of the present disclosure, at a position close to the thinning groove, the slope angle of the first organic material layer is 80° to 90°.

[0112] Optionally, the thinning groove can be formed by the following method: Fig.18 and Fig.19 , a support substrate 902 having a protruding layer 903 corresponding to the thinning groove 203 may be provided first; see Fig. 20 Then, the substrate and the film layers on the substrate are formed in sequence. Fig.21 , the support substrate 902 and the protruding layer 903 can be peeled off at the same time, and the peeling of the protruding layer 903 forms a thinning groove 203 on the back of the base substrate. Optionally, the support substrate 902 can be a glass substrate. Optionally, the material of the protruding layer 903 can be an inorganic material.

[0113] For example, see Fig.18 The support substrate 902 may be a glass substrate, and a patterning operation is performed on the glass substrate to form a protruding layer 903 on the surface of the glass substrate. Fig.19 A light-transmitting material layer can be formed on the surface of the support substrate 902. The material of the light-transmitting material layer can be inorganic materials such as silicon oxide, silicon nitride, silicon oxynitride, metal oxide, etc. Then, the light-transmitting material layer is patterned to form a protruding layer 903. Furthermore, the protruding layer 903 has a certain light transmittance in the ultraviolet band, so as to perform laser lift-off.

[0114] As another example, a sacrificial layer may be provided on the surface of the protruding layer, for example, a sacrificial layer formed of inorganic materials such as silicon nitride and silicon oxide. When peeling off the protruding layer, a mechanical peeling method may also be used for peeling off. In this embodiment, the material of the protruding layer may include an opaque material, for example, a metal film layer.

[0115] Optionally, the protruding layer 903 may be made of a highly light-transmitting material, and its light transmittance is greater than that of the first organic material layer 211. Fig. 22 and Fig.15, the protruding layer 903 may not be peeled off, so that the protruding layer 903 is embedded in the first organic material layer 211 of the base substrate 200, as a third filling material layer 808 filled in the thinning groove 203. In other words, the display panel may further include a third filling material layer 808, and the third filling material layer 808 is embedded in the thinning groove 203; the light transmittance of the third filling material layer 808 is greater than the light transmittance of the first organic material layer 211. In one embodiment of the present disclosure, the third filling material layer 808 is a colorless and transparent organic material, for example, a colorless and transparent polyimide material.

[0116] In some other embodiments, see Figure 6 The first organic material layer 211 is provided with an anti-reflection groove 201 on one side close to the driving circuit layer 300. In this way, the base substrate 200 achieves thinning of the first organic material layer 211 in the second display area D, thereby improving the light transmittance of the display panel in the second display area D.

[0117] Optionally, in this embodiment, the anti-reflection groove 201 can be a first anti-reflection groove, that is, the size of the groove opening is larger than the size of the groove bottom. This can ensure that the materials of the driving circuit layer and the pixel light-emitting layer can sequentially cover the anti-reflection groove 201, avoiding fracture at the anti-reflection groove 201. The anti-reflection groove 201 is also easy to prepare, for example, it is easy to prepare by a photolithography process or an exposure and development method.

[0118] Optionally, in one embodiment, see Figure 6 and Figure 7 , the first barrier layer 212 and the second organic material layer 213 may sequentially cover the anti-reflection groove 201 located on the first organic material layer 211. In another embodiment, see Figure 8 The first barrier layer 212 may have a hollow hole 202 exposing the anti-reflection groove 201; the edge of the hollow hole 202 coincides with the edge of the notch of the anti-reflection groove 201 close to the first barrier layer 212. In this way, the first barrier layer 212 can be used as a mask to perform a patterning operation on the first organic material layer 211 to form the desired anti-reflection groove 201.

[0119] Optionally, the second organic material layer 213 can be made of a highly transparent organic material, such as a colorless and transparent polyimide material, so that the transmittance of the second organic material layer 213 is greater than that of the first organic material layer 211, thereby further improving the transmittance of the second display area D.

[0120] Optionally, the depth of the anti-reflection groove 201 may be 0.5 to 1 times the thickness of the first organic material layer 211 . Further, the depth of the anti-reflection groove 201 may be 0.8 to 1 times the thickness of the first organic material layer 211 .

[0121] For example, see Figure 7 and Figure 8 , the anti-reflection groove 201 penetrates the first organic material layer 211 . In other words, the depth of the anti-reflection groove 201 is 1 times the thickness of the first organic material layer 211 .

[0122] In other embodiments, see Fig. 9 and Fig.10 The display panel further includes a first filling material layer 806, which is located between the base substrate 200 and the driving circuit layer 300 and in the anti-reflection groove 201; the light transmittance of the first filling material layer 806 is greater than the light transmittance of the first organic material layer 211. In this way, the first filling material layer 806 can fill the surface of the base substrate 200 and provide a relatively flat surface for the driving circuit layer 300.

[0123] Optionally, the material of the first filling material layer 806 is an organic material to improve the flexibility of the display panel and enhance the performance of the base substrate 200. Furthermore, the material of the first filling material layer 806 can be a colorless and transparent polyimide material.

[0124] Optionally, the first filling material layer 806 may be disposed in the first anti-reflection groove.

[0125] In other embodiments, see Fig.11 , the first organic material layer 211 is provided with an anti-reflection groove 201 on the side away from the driving circuit layer 300. In other words, the anti-reflection groove 201 is provided in the first organic material layer 211 and the notch is located on the surface of the first organic material away from the driving circuit layer 300. In this way, the first organic material layer 211 can be thinned without affecting the flatness of the surface of the base substrate 200 on the side close to the base substrate 200.

[0126] Optionally, the anti-reflection groove 201 is a second anti-reflection groove, that is, the size of the groove opening of the anti-reflection groove 201 is larger than the size of the groove bottom, which can facilitate the preparation of the anti-reflection groove 201.

[0127] In one method of preparation, see Fig.23 , a support substrate 902 having a protruding layer 903 corresponding to the anti-reflection groove 201 can be provided first, and then various film layers such as the base substrate can be formed in sequence. Then, see Fig.24 , the support substrate 902 and the protruding layer 903 can be peeled off at the same time, and the peeling of the protruding layer 903 forms an anti-reflection groove 201 on the back side of the base substrate 200.

[0128] Optionally, the support substrate 902 may be a glass substrate. Optionally, the material of the protruding layer 903 may be an inorganic material.

[0129] Exemplarily, the glass substrate may be patterned to form a protruding layer 903 on the surface of the glass substrate. In another exemplary embodiment, a light-transmitting material layer may be formed on the surface of the glass substrate, and the material of the light-transmitting material layer may be an inorganic material such as silicon oxide, silicon nitride, silicon oxynitride, or metal oxide; and then the light-transmitting material layer may be patterned to form the protruding layer 903. Furthermore, the protruding layer 903 has a certain transmittance in the ultraviolet band to facilitate laser stripping. In another exemplary embodiment, a sacrificial layer may be provided on the surface of the protruding layer 903, for example, a sacrificial layer formed of an inorganic material such as silicon nitride or silicon oxide. When stripping the protruding layer 903, a mechanical stripping method may also be used for stripping. In this embodiment, the material of the protruding layer 903 may include an opaque material, for example, a metal film layer.

[0130] In another embodiment of the present disclosure, the protruding layer 903 may be made of a highly light-transmitting material, and its light transmittance is greater than that of the first organic material layer 211. Fig.25 and Fig.13 , the protruding layer 903 may not be peeled off, so that the protruding layer 903 is embedded in the first organic material layer 211 of the base substrate 200, as a second filling material layer 807 filled in the anti-reflection groove 201. In other words, the display panel may further include a second filling material layer 807, and the second filling material layer 807 is embedded in the anti-reflection groove 201; the transmittance of the second filling material layer 807 is greater than the transmittance of the first organic material layer 211.

[0131] Optionally, the depth of the anti-reflection groove 201 may be 0.5 to 1 times the thickness of the first organic material layer 211. Further, the depth of the anti-reflection groove 201 may be 0.8 to 1 times the thickness of the first organic material layer 211. For example, see Fig.12 , the anti-reflection groove 201 penetrates the first organic material layer 211 . In other words, the depth of the anti-reflection groove 201 is 1 times the thickness of the first organic material layer 211 .

[0132] Alternatively, see Figures 4 to 17 , the back film layer 100 is located on the side of the base substrate 200 away from the driving circuit layer 300; the back film layer 100 is provided with an opening 101, and the second display area D is located within the orthographic projection of the opening 101 on the base substrate 200. Further, the back film layer 100 can be connected to the base substrate 200 through an adhesive layer 110, and the adhesive layer 110 also does not cover the second display area D.

[0133] The present disclosure also provides a display device, which includes any one of the display panels described in the above display panel embodiments. The display device can be a smartphone screen, a smart watch screen, or other types of display devices. Since the display device includes any one of the display panels described in the above display panel embodiments, it has the same beneficial effects, and the present disclosure will not be repeated here.

[0134] In one embodiment of the present disclosure, see Figures 4 to 17 The display device includes a display panel and at least one photosensitive component 901. The photosensitive component 901 is located on a side of the display panel close to the base substrate 200 and facing the second display area D.

[0135] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

Claims

1. A display panel comprising a first display area and at least one second display area located on one side of the first display area, wherein the light transmittance of the second display area is greater than that of the first display area; The display panel comprises a base substrate, a driving circuit layer and a pixel light emitting layer which are stacked in sequence; in, The base substrate comprises at least one organic material layer, the at least one organic material layer is provided with an anti-reflection groove, and the anti-reflection groove overlaps at least partially with the second display area; the thickness of the at least one organic material layer close to the anti-reflection groove gradually decreases in the direction from the first display area to the second display area; At a position close to the anti-reflection groove, the slope angle of the at least one organic material layer is 10° to 60°; In the direction from the first display area to the second display area, the width of the orthographic projection of the side wall of the at least one organic material layer close to the anti-reflection groove on the base substrate is not greater than 30 microns; The base substrate comprises a first organic material layer, a first barrier layer and a second organic material layer which are stacked in sequence, the driving circuit layer is arranged on a side of the second organic material layer away from the first organic material layer; the anti-reflection groove is arranged in the second organic material layer; A thinning groove is further provided on a side of the first organic material layer away from the driving circuit layer, and the orthographic projection of the thinning groove on the base substrate covers the second display area; At a position close to the thinning groove, the slope angle of the first organic material layer is 80° to 90°.

2. The display panel according to claim 1, wherein: The orthographic projection of the anti-reflection groove on the base substrate covers the second display area.

3. The display panel according to claim 1, wherein: The base substrate comprises a first organic material layer, a first barrier layer and a second organic material layer which are stacked in sequence, and the driving circuit layer is arranged on a side of the second organic material layer away from the first organic material layer; The anti-reflection groove is arranged on a side of the second organic material layer away from the first organic material layer.

4. The display panel according to claim 3, wherein: The anti-reflection groove penetrates the second organic material layer and exposes a portion of the first barrier layer.

5. The display panel according to claim 1, wherein: The base substrate comprises a first organic material layer, a first barrier layer and a second organic material layer which are stacked in sequence, and the driving circuit layer is arranged on a side of the second organic material layer away from the first organic material layer; The first organic material layer is provided with the anti-reflection groove on a side close to the driving circuit layer.

6. The display panel according to claim 5, wherein: The anti-reflection groove penetrates the first organic material layer.

7. The display panel according to claim 5, wherein: The first barrier layer has a hollow hole exposing the anti-reflection groove; an edge of the hollow hole substantially coincides with an edge of the opening of the anti-reflection groove close to the first barrier layer.

8. The display panel according to any one of claims 5 to 7, wherein: The light transmittance of the second organic material layer is greater than the light transmittance of the first organic material layer.

9. The display panel according to any one of claims 3 to 7, wherein: The size of the opening of the anti-reflection groove is greater than the size of the bottom of the anti-reflection groove.

10. The display panel according to any one of claims 3 to 7, wherein: The display panel further includes a first filling material layer, wherein the first filling material layer is located between the base substrate and the driving circuit layer and is located in the anti-reflection groove; The light transmittance of the first filling material layer is greater than the light transmittance of the first organic material layer.

11. The display panel according to claim 1, wherein: The base substrate comprises a first organic material layer, a first barrier layer and a second organic material layer which are stacked in sequence, and the driving circuit layer is arranged on a side of the second organic material layer away from the first organic material layer; The first organic material layer is provided with the anti-reflection groove on a side away from the driving circuit layer.

12. The display panel according to claim 11, wherein: The display panel further includes a second filling material layer, wherein the second filling material layer is embedded in the anti-reflection groove; The light transmittance of the second filling material layer is greater than the light transmittance of the first organic material layer.

13. The display panel according to claim 1, wherein: The display panel further includes a third filling material layer, which is embedded in the thinning groove; and the light transmittance of the third filling material layer is greater than the light transmittance of the first organic material layer.

14. The display panel according to claim 1, wherein: The display panel further comprises a back film layer, which is located at a side of the base substrate away from the driving circuit layer; the back film layer is provided with an opening, and the second display area is located within the orthographic projection of the opening on the base substrate.

15. The display panel according to claim 1, wherein: The display panel further comprises a second barrier layer and a buffer layer sequentially stacked between the base substrate and the driving circuit layer, wherein the buffer layer is located on a side of the second barrier layer away from the base substrate; The display panel may further include a planarization layer located between the pixel light emitting layer and the driving circuit layer.

16. The display panel according to claim 1, wherein: The display panel further comprises a touch control layer and a reflection reduction layer which are sequentially stacked on a side of the pixel light emitting layer away from the base substrate, and the reflection reduction layer comprises a black matrix layer and a color filter layer.

17. A display device, comprising the display panel according to any one of claims 1 to 16 and at least one photosensitive component, wherein the photosensitive component is located on a side of the display panel close to the base substrate and facing the second display area.

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