Display panel and display device

Abstract

The invention relates to the technical field of display, and provides a display panel and a display device.The display panel comprises a substrate and a pixel definition layer, the pixel definition layer is located on one side of the substrate, the pixel definition layer comprises a first adjusting area and a pixel opening defined by the first adjusting area, and the first adjusting area is located in the pixel opening; a first adjusting surface is formed on the surface, back on to the substrate, of the first adjusting area; in the direction perpendicular to the plane where the substrate is located, the end, away from the pixel opening, of the first adjusting face is obliquely arranged towards the substrate. The use performance of the display panel provided by the invention is improved.

Description

Technical Field

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

[0002] Organic Light Emitting Display (OLED) and flat-panel display devices based on technologies such as Light Emitting Diode (LED) have been widely used in various consumer electronic products such as mobile phones, televisions, laptops, desktop computers, etc. due to their advantages such as high image quality, power saving, thin body and wide application range, becoming the mainstream in display devices.

[0003] However, the performance of current OLED display products needs to be improved. Summary of the invention

[0004] The present application provides a display panel and a display device to improve the performance of the display panel at least to a certain extent.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows: in a first aspect, a display panel is provided, comprising a substrate and a pixel definition layer, wherein the pixel definition layer is located on one side of the substrate, the pixel definition layer comprises a first adjustment area and a pixel opening surrounded by the first adjustment area, and the surface of the first adjustment area facing away from the substrate forms a first adjustment surface;

[0006] In a direction perpendicular to the plane where the substrate is located, one end of the first adjustment surface away from the pixel opening is tilted toward the substrate.

[0007] In the display panel provided in the embodiment of the present application, a pixel definition layer is arranged to enclose a first adjustment area to form a pixel opening, and one end of the first adjustment area close to the pixel opening is inclined toward the side facing away from the substrate, so that the reflection direction of the ambient light irradiated to the first adjustment area is changed and emitted toward the location of the black matrix, thereby achieving the effect of reducing the reflectivity of the ambient light.

[0008] Optionally, the display panel also includes a filling layer and a shading layer, the filling layer covers the pixel definition layer, the shading layer is located on the side of the filling layer facing away from the substrate and encloses a plurality of light-transmitting openings, the light-transmitting openings are arranged corresponding to the pixel openings, and the orthographic projection of the shading layer on the substrate is spaced apart from the orthographic projection of the pixel opening on the substrate.

[0009] Optionally, an orthographic projection of the light shielding layer on the substrate and an orthographic projection of the first adjustment surface on the substrate are arranged at an interval.

[0010] Optionally, an outer contour of an orthographic projection of the light-shielding layer on the substrate partially overlaps with an outer contour of an orthographic projection of the first adjustment surface on the substrate.

[0011] Optionally, an angle between an end of the first adjustment surface close to the pixel opening and a plane where the substrate is located is greater than a preset angle;

[0012] In a direction perpendicular to the plane where the substrate is located, the distance between the orthographic projection of the light shielding layer on the substrate and the orthographic projection of the pixel opening on the substrate is a first distance, and the distance between the surface of the light shielding layer close to the substrate and the end of the first adjustment surface close to the pixel opening is a second distance, then:

[0013]

[0014] Wherein, θ is the preset angle, d is the first distance, h is the second distance, and n is the refractive index of the filling layer.

[0015] Optionally, at least a portion of the first adjustment surface is a curved surface.

[0016] Optionally, in a direction perpendicular to the plane where the substrate is located, the cross-section of the first adjustment surface includes at least two arc surface segments, and among the at least two arc surface segments, the angle between the arc surface segment close to the substrate and the plane where the substrate is located is smaller than the angle between the arc surface segment away from the substrate and the plane where the substrate is located.

[0017] Optionally, in any two adjacent arc surface segments, an angle between the arc surface segment on the side close to the substrate and the plane where the substrate is located is smaller than an angle between the arc surface segment on the side away from the substrate and the plane where the substrate is located.

[0018] Optionally, along a direction approaching the substrate, an angle between the arc surface segment and the substrate gradually decreases.

[0019] Optionally, the display panel further includes a filter element, which is located on a side of the filling layer facing away from the substrate and is arranged corresponding to the pixel opening.

[0020] Optionally, the filter element and the light shielding layer are located in the same layer and are arranged at intervals.

[0021] Optionally, at least part of the filter element is located in the light-transmitting opening.

[0022] Optionally, an orthographic projection of the filter element on the substrate coincides with an orthographic projection of the light-transmitting opening on the substrate.

[0023] Optionally, the orthographic projection of the pixel opening on the substrate is located within the orthographic projection of the light-transmitting opening on the substrate.

[0024] Optionally, the display panel further comprises a protrusion arranged corresponding to the pixel opening, and the protrusion is located between the pixel definition layer and the substrate;

[0025] The surface of the protrusion facing away from the substrate includes a support surface and a second adjustment surface, the second adjustment surface is arranged around the support surface, the first adjustment area covers the second adjustment surface, and the support surface is exposed relative to the pixel opening;

[0026] The second adjustment surface and the first adjustment surface are inclined toward the same side, and the inclination of the second adjustment surface is greater than the inclination of the first adjustment surface.

[0027] Optionally, at least a portion of the second adjustment surface is a curved surface.

[0028] Optionally, in a direction perpendicular to the plane where the substrate is located, the cross-section of the second adjustment surface includes at least two curved surface segments, and among the at least two curved surface segments, the angle between the curved surface segment close to the substrate side and the plane where the substrate is located is smaller than the angle between the curved surface segment away from the substrate side and the plane where the substrate is located.

[0029] Optionally, among any two adjacent curved surface segments, an angle between the curved surface segment close to the substrate and the plane where the substrate is located is smaller than an angle between the curved surface segment away from the substrate and the plane where the substrate is located.

[0030] Optionally, along a direction approaching the substrate, an angle between the curved surface segment and the substrate gradually decreases.

[0031] Optionally, the angle between each of the curved surface segments and the plane where the substrate is located ranges from 20° to 60°.

[0032] Optionally, in a direction perpendicular to the plane where the substrate is located, the thickness of the protrusion is greater than 1 μm.

[0033] Optionally, the display panel also includes a light-emitting element, which includes a first electrode, a light-emitting functional layer and a second electrode, the first electrode is located between the pixel definition layer and the substrate, the first electrode covers the side of the protrusion facing away from the substrate and a portion of the surface of the first electrode is exposed through the pixel opening, the light-emitting functional layer covers the pixel opening, and the second electrode is located on the side of the light-emitting functional layer facing away from the substrate and covers the first adjustment surface.

[0034] Optionally, the orthographic projection of the protrusion on the substrate is located within the orthographic projection of the first electrode on the substrate;

[0035] Optionally, a distance between an orthographic projection outer contour of the first electrode on the substrate and an orthographic projection outer contour of the protrusion on the substrate is not less than 1 μm.

[0036] Optionally, the orthographic projection of the first adjustment area on the substrate is located within the orthographic projection of the first electrode on the substrate.

[0037] Optionally, the pixel definition layer further includes a climbing area, and the climbing area is located on a side of the first adjustment area facing away from the pixel opening;

[0038] A surface of the climbing area on one side facing away from the substrate forms a climbing surface, and the orthographic projection of the climbing surface on the substrate is located on the peripheral side of the orthographic projection of the first adjustment area on the substrate.

[0039] Optionally, an outer contour of an orthographic projection of the climbing surface on the substrate partially overlaps with an outer contour of an orthographic projection of the first adjustment surface on the substrate.

[0040] Optionally, the pixel definition layer comprises a light-transmitting layer and a light-absorbing layer which are stacked, the light-transmitting layer is located on a side of the light-absorbing layer facing away from the substrate, and there is a distance between the orthographic projection of the light-transmitting layer on the substrate and the orthographic projection of the pixel opening on the substrate, and the light-absorbing layer is used to absorb external ambient light;

[0041] Wherein, the first adjustment area is formed in the light absorbing layer, and the climbing area is formed in the light transmitting layer.

[0042] Optionally, the material of the light absorbing layer includes black material.

[0043] In a second aspect, the present application further provides a display device, comprising any of the display panels described above.

[0044] The display device provided in the embodiment of the present application includes the above-mentioned display panel, so the display device at least includes the beneficial effects of any one or several of the above-mentioned display panels. The specific effects are described above and will not be repeated here.

[0045] The beneficial effects of the display panel and display device provided by the present application are as follows: compared with the related art, the display panel provided by the present application can obtain an inclined first adjustment surface by adjusting the shape of the area located between the light-transmitting opening and the pixel opening. The special shape of the first adjustment surface can reflect the light irradiated to the area to under the light-shielding layer, and effectively reduce the reflectivity of the display panel to ambient light by reducing the reflected light emitted through the light-transmitting opening, which helps to improve the optical effect of the display panel in a dark state and optimize the performance of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art 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 labor.

[0047] Figure 1 A schematic diagram of the planar structure of a display panel provided in an embodiment of the present application;

[0048] Figure 2 for Figure 1 The structure of area A in the display panel is shown as an enlarged view;

[0049] Figure 3 for Figure 2 A schematic diagram of a first cross-sectional structure of a display panel is shown;

[0050] Figure 4 for Figure 3 A magnified view of the structure in the middle B area;

[0051] Figure 5 for Figure 2 A schematic diagram of a second cross-sectional structure of the display panel shown;

[0052] Figure 6 for Figure 2 A third cross-sectional structural schematic diagram of a display panel is shown;

[0053] Figure 7 for Figure 2 BB section view in the figure;

[0054] Figure 8 A schematic diagram of the planar structure of a display device provided in an embodiment of the present application.

[0055] Among them, the reference numerals in the figure are:

[0056] 100. Display device; 10. Display panel;

[0057] 1. Substrate; 2. Pixel definition layer; 21. First adjustment area; 211. First adjustment surface; 2111. Arc surface segment; 22. Climbing area; 221. Climbing surface; 210. Light-transmitting layer; 220. Light-absorbing layer; 201. Pixel opening; 3. Filling layer; 31. First encapsulation layer; 32. Second encapsulation layer; 33. Third encapsulation layer; 34. Touch layer; 4. Shading layer; 401. Light-transmitting opening; 5. Filter element; 6. Raised portion; 61. Support surface; 62. Second adjustment surface; 621. Curved surface segment; 7. Light-emitting element; 71. First electrode; 72. Light-emitting functional layer; 73. Second electrode. DETAILED DESCRIPTION

[0058] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0059] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0060] In the description of the present application, it should be understood that 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" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0061] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0062] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; 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 specific circumstances.

[0063] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a 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. A first feature being “below”, “below”, and “below” a 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.

[0064] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0065] The term "substrate" as used herein refers to the material on which subsequent material layers are added. The substrate itself may be patterned. The material added on top of the substrate may be patterned, or may remain unpatterned. In addition, the substrate may include a wide range of materials, such as silicon, germanium, gallium arsenide, indium phosphide, etc. Alternatively, the substrate may be made of a non-conductive material (e.g., glass, plastic, or sapphire wafer, etc.).

[0066] The term "layer" used in the text may refer to a material portion including an area with a certain thickness. A layer may extend over the entire underlying structure or overlying structure, or may have a range smaller than the range of the underlying or overlying structure. In addition, a layer may be an area of ​​a homogeneous or inhomogeneous continuous structure, the thickness of which is less than the thickness of the continuous structure. For example, a layer may be located between the top surface and the bottom surface of the continuous structure or between any paired lateral planes at the top surface and the bottom surface. A layer may extend laterally, vertically and / or along a tapered surface. A substrate may be a layer, may include one or more layers therein, and / or may have one or more layers located thereon, above it and / or below it. A layer may include multiple layers. For example, an interconnect layer may include one or more conductors and a contact layer (forming contacts, interconnects and / or vias therein) and one or more dielectric layers.

[0067] In conventional display panels, there will be a mirror effect after the cathode material coating is processed, which is easy to reflect the external ambient light, affecting the device display brightness and contrast. The traditional solution is to use circular polarizers to reduce the impact of ambient light, but circular polarizers will reduce light transmittance and increase the thickness of the screen. In response to this situation, some display panels use COE (Color Filter on Encapsulation) technology. COE technology removes the polarizer and directly forms a color film on the outside of the encapsulation layer, which can not only reduce the thickness of the display panel, but also increase the transmittance of the display panel, allowing the screen to present brighter and clearer images.

[0068] In the process of implementing the present application, the inventors found that the related art has the following problems: the display panel 10 has a problem of high reflectivity, which affects the display effect of the display panel 10 to a certain extent and ultimately affects its performance.

[0069] Based on this, an embodiment of the present application provides a display panel 10 to alleviate or improve the above technical problems at least to a certain extent.

[0070] In a first aspect, an embodiment of the present application provides a display panel 10, which includes a substrate 1 and a pixel definition layer 2, wherein the pixel definition layer 2 is located on one side of the substrate 1, and the pixel definition layer 2 includes a first adjustment area 21 and a pixel opening 201 enclosed by the first adjustment area 21, and the surface of the first adjustment area 21 facing away from the substrate 1 forms a first adjustment surface 211; in a direction perpendicular to the plane where the substrate 1 is located, the end of the first adjustment surface 211 away from the pixel opening 201 is inclined toward the substrate 1.

[0071] See also Figure 1 and Figure 2 , the number of the above-mentioned pixel openings 201 is multiple.

[0072] Specifically, the first adjustment area 21 is a hollow annular structure. The first adjustment area 21 is disposed around any pixel opening 201 . The surface of the first adjustment area 21 facing away from the substrate 1 is an inclined first adjustment surface 211 .

[0073] See also Figure 3 The orthographic projection of the first adjustment surface 211 on the substrate 1 is located at the peripheral side of the orthographic projection of the pixel opening 201 on the substrate 1, and the orthographic projection of the first adjustment surface 211 on the substrate 1 is a ring structure.

[0074] Since the end of the first adjustment surface 211 away from the pixel opening 201 is tilted toward the substrate 1, the distance between the end of the first adjustment surface 211 close to the pixel opening 201 and the substrate 1 is greater than the distance between the end of the first adjustment surface 211 away from the pixel opening 201 and the substrate 1. Figure 3 When ambient light is irradiated from the outside of the display panel 10 to the first adjustment surface 211, the first adjustment surface 211, as the interface of light from one medium to another medium, can be reflected on its surface, and the reflected light is emitted in a direction symmetrical to the incident angle of the incident light. Since the end of the first adjustment surface 211 away from the pixel opening 201 is inclined toward the direction close to the substrate 1, Figure 3 Taking the direction shown as an example, after the incident light incident from above is reflected by the first adjustment surface 211 , the reflected light is deflected and emitted toward the side away from the pixel opening 201 relative to the incident light.

[0075] See also Figure 3 The display panel 10 provided in the embodiment of the present application further includes a light shielding layer 4 located on the side of the pixel definition layer 2 facing away from the substrate 1. The light shielding layer 4 includes a black matrix (BM). The black matrix is ​​made of black material and can play a light shielding role on the surface of the display panel 10.

[0076] Specifically, the orthographic projection of the light shielding layer 4 on the substrate 1 and the orthographic projection of the pixel opening 201 on the substrate 1 are arranged alternately.

[0077] The reflected light will be directed to the light shielding layer 4 formed by the black matrix. Since the light shielding layer 4 has good light shielding and ambient light absorption effects, the ambient light reflectivity at the first adjustment surface 211 can be effectively reduced to improve the display effect of the display panel 10.

[0078] In the display panel 10 provided in the embodiment of the present application, a first adjustment area 21 for enclosing a pixel opening 201 is arranged in which one end of the pixel definition layer 2 close to the pixel opening 201 is inclined toward the side facing away from the substrate 1, so that the reflection direction of the ambient light irradiated to the first adjustment area 21 is changed and emitted toward the location of the black matrix, so as to achieve the effect of reducing the reflectivity of the ambient light.

[0079] See also Figure 3 The light shielding layer 4 is patterned to form a shape that can avoid the pixel opening 201.

[0080] Specifically, the light shielding layer 4 encloses and forms a plurality of light-transmitting openings 401 , and the light-transmitting openings 401 are arranged corresponding to the pixel openings 201 .

[0081] In some embodiments, the orthographic projection of the first adjustment surface 211 on the substrate 1 is located within the orthographic projection of the light-transmitting opening 401 on the substrate 1 .

[0082] See also Figure 3 At this time, the orthographic projection of the light shielding layer 4 on the substrate 1 and the orthographic projection of the first adjustment surface 211 on the substrate 1 are arranged at an interval.

[0083] In other similar embodiments, the orthographic projection of the shading layer 4 on the substrate 1 may be arranged to be exactly adjacent to the orthographic projection of the first adjustment surface 211 on the substrate 1 , in which case the orthographic projection outer contour of the shading layer 4 on the substrate 1 partially overlaps with the orthographic projection outer contour of the first adjustment surface 211 on the substrate 1 .

[0084] Specifically, the orthographic projection of the end of the first adjustment surface 211 away from the substrate 1 on the substrate 1 can just fall on the orthographic projection contour of the light shielding layer 4 on the substrate 1 .

[0085] In some embodiments, the display panel 10 further includes a filling layer 3 , which covers the pixel definition layer 2 and is located on a side of the light shielding layer 4 close to the substrate 1 .

[0086] Specifically, the filling layer 3 is located between the pixel definition layer 2 and the light shielding layer 4 , and the light shielding layer 4 is located on the side of the filling layer 3 facing away from the substrate 1 .

[0087] See also Figure 3 The filling layer 3 represents each film layer located between the pixel definition layer 2 and the light shielding layer 4 in the display panel 10, including but not limited to film layer structures such as an encapsulation layer and a touch layer 34.

[0088] In some embodiments, the filling layer 3 includes a first encapsulation layer 31 , and the first encapsulation layer 31 is made of an organic material.

[0089] In other similar embodiments, the filling layer 3 further includes a second encapsulation layer 32, which is located between the first encapsulation layer 31 and the pixel definition layer 2, and is made of an organic material. Specifically, the material of the second encapsulation layer 32 is substantially the same as that of the first encapsulation layer 31.

[0090] Specifically, the second encapsulation layer 32 covers the pixel opening 201 of the pixel definition layer 2 .

[0091] In other similar embodiments, the filling layer 3 further includes a third encapsulation layer 33 , and the third encapsulation layer 33 is located on a side of the first encapsulation layer 31 facing away from the substrate 1 . That is, the third encapsulation layer 33 covers the first encapsulation layer 31 .

[0092] Specifically, the third encapsulation layer 33 is made of inorganic material.

[0093] In other embodiments, the filling layer 3 further includes a touch layer 34, which is located on the side of the third encapsulation layer 33 facing away from the substrate 1. That is, the touch layer 34 covers the third encapsulation layer 33, and the touch layer 34 is located between the third encapsulation layer 33 and the light shielding layer 4.

[0094] See also Figure 6 , the thickness of the first encapsulation layer 31 is greater than the thickness of any one of the second encapsulation layer 32 , the third encapsulation layer 33 and the touch layer 34 .

[0095] Specifically, the thickness of the first encapsulation layer 31 is greater than the sum of the thicknesses of the second encapsulation layer 32 , the third encapsulation layer 33 and the touch layer 34 .

[0096] In some embodiments, the thickness of the second encapsulation layer 32, the third encapsulation layer 33 and the touch layer 34 is much smaller than the thickness of the first encapsulation layer 31. Therefore, the above-mentioned film layers can be regarded as the same film layer structure, namely, the filling layer 3.

[0097] In order to form the first adjustment area 21 having the above-mentioned inclined shape, in some embodiments, the display panel 10 is configured to further include a protrusion 6, see Figure 3 .

[0098] Specifically, the protrusion 6 is located at the pixel opening 201 and is arranged opposite to the pixel opening 201. The protrusion 6 is located between the pixel definition layer 2 and the substrate 1, and the pixel opening 201 is formed on the side of the protrusion 6 facing away from the substrate 1.

[0099] See also Figure 3 and Figure 4 The protrusion 6 is a block-shaped structure with a protrusion in the middle and a slope-shaped structure formed around it. The surface of the protrusion 6 facing away from the substrate 1 includes a support surface 61 and a second adjustment surface 62, wherein the support surface 61 is located in the middle of the protrusion 6, and the second adjustment surface 62 is located around the support surface 61.

[0100] Specifically, in a direction perpendicular to the plane of the substrate 1 , the thickness of the protrusion 6 is greater than 1 μm. In other words, the maximum distance between the side of the support surface 61 facing away from the substrate 1 and the side close to the substrate 1 is not less than 1 μm.

[0101] In some embodiments, the first adjustment area 21 covers the second adjustment surface 62, and the pixel opening 201 is formed on the side of the support surface 61 facing away from the substrate 1, and the support surface 61 is exposed relative to the pixel opening 201. In other words, the light-emitting element 7 for emitting light is at least partially located on the side of the support surface 61 facing away from the substrate 1.

[0102] Specifically, the second adjustment surface 62 is an annular structure disposed around the support surface 61 , and the first adjustment area 21 covers the second adjustment surface 62 .

[0103] Specifically, the orthographic projection of the second adjustment surface 62 on the substrate 1 is located within the orthographic projection of the first adjustment surface 211 on the substrate 1 ; or, the orthographic projection of the second adjustment surface 62 on the substrate 1 coincides with the orthographic projection of the first adjustment surface 211 on the substrate 1 .

[0104] See also Figure 3 The second adjustment surface 62 and the first adjustment surface 211 are inclined toward the same side, and the inclination of the second adjustment surface 62 is greater than the inclination of the first adjustment surface 211.

[0105] The first adjustment area 21 of the pixel definition layer 2 covers the second adjustment surface 62 of the protrusion 6 and forms a sloped first adjustment surface 211 on the side thereof facing away from the substrate 1 to achieve a desired special reflective surface morphology capable of reflecting incident ambient light.

[0106] Specifically, the end of the first adjustment surface 211 close to the pixel opening 201 is defined as the first end, and the end away from the pixel opening 201 is defined as the second end; the end of the second adjustment surface 62 close to the pixel opening 201 is defined as the third end, and the end away from the pixel opening 201 is defined as the fourth end, and the orthographic projection of the first end on the substrate 1 at least partially overlaps with the orthographic projection of the third end on the substrate 1, and the orthographic projection of the second end on the substrate 1 at least partially overlaps with the orthographic projection of the fourth end on the substrate 1. Then, in the direction perpendicular to the plane where the substrate 1 is located, the distance between the first end and the second end is the first height, and the distance between the third end and the fourth end is the second height, and the second height is greater than the first height.

[0107] Under the same size, the height difference between the first end and the second end of the first adjustment surface 211 is smaller than the height difference between the third end and the fourth end of the second adjustment surface 62 , indicating that the inclination of the first adjustment surface 211 is smaller than the inclination of the second adjustment surface 62 .

[0108] The first end and the third end are respectively located at the first adjustment surface 211 and one end of the second adjustment surface 62 pointing to the pixel opening 201 .

[0109] The first adjustment surface 211 and the second adjustment surface 62 are both relatively smooth surfaces. In an ideal state, the first adjustment surface 211 and the second adjustment surface 62 are smooth surfaces.

[0110] At least a portion of the first adjustment surface 211 is a plane. When the first adjustment surface 211 is a plane, the angles between the first adjustment surface 211 and the substrate 1 at different positions are consistent.

[0111] In other similar embodiments, at least a portion of the first adjustment surface 211 is a curved surface.

[0112] See also Figure 4, in a direction perpendicular to the plane where the substrate 1 is located, the cross section of the first adjustment surface 211 is composed of smooth line segments.

[0113] The cross section of the first adjustment surface 211 includes at least one arcuate surface segment 2111 .

[0114] Specifically, the cross section of the first adjustment surface 211 includes at least two arc segments 2111. Among the at least two arc segments 2111, the angle between the arc segment 2111 close to the substrate 1 and the plane where the substrate 1 is located is smaller than the angle between the arc segment 2111 far from the substrate 1 and the plane where the substrate 1 is located.

[0115] Along the direction approaching the substrate 1 , the angle between the arc surface segment 2111 and the substrate 1 gradually decreases.

[0116] In some embodiments, the cross section of the first adjustment surface 211 includes at least two adjacent arcuate segments 2111. In any two adjacent arcuate segments 2111, the angle between the arcuate segment 2111 close to the substrate 1 and the plane where the substrate 1 is located is smaller than the angle between the arcuate segment 2111 away from the substrate 1 and the plane where the substrate 1 is located.

[0117] The structure of the second adjustment surface 62 is substantially consistent with that of the first adjustment surface 211 .

[0118] Specifically, at least a portion of the second adjustment surface 62 is a plane. When the second adjustment surface 62 is a plane, the angles between the second adjustment surface 62 and the substrate 1 at different positions are consistent.

[0119] In other similar embodiments, at least a portion of the second adjustment surface 62 is a curved surface.

[0120] See also Figure 4 In the direction perpendicular to the plane where the substrate 1 is located, the cross section of the second adjustment surface 62 is composed of smooth line segments.

[0121] The cross section of the second adjustment surface 62 includes at least one curved surface segment 621 .

[0122] Specifically, the cross section of the second adjustment surface 62 includes at least two curved segments 621. Among the at least two curved segments 621, the angle between the curved segment 621 close to the substrate 1 and the plane where the substrate 1 is located is smaller than the angle between the curved segment 621 away from the substrate 1 and the plane where the substrate 1 is located.

[0123] Along the direction approaching the substrate 1 , the angle between the curved surface segment 621 and the substrate 1 gradually decreases.

[0124] In some embodiments, the cross section of the second adjustment surface 62 includes at least two adjacent curved segments 621. In any two adjacent curved segments 621, the angle between the curved segment 621 close to the substrate 1 and the plane where the substrate 1 is located is smaller than the angle between the curved segment 621 away from the substrate 1 and the plane where the substrate 1 is located.

[0125] See also Figure 4 The angle between each curved surface segment 621 and the plane where the substrate 1 is located ranges from 20° to 60°.

[0126] Specifically, the angle between each curved surface segment 621 and the plane where the substrate 1 is located may be set to a range of 30° to 50°.

[0127] It should be noted that the above-mentioned curved surface segment 621 and arc surface segment 2111 are mainly used to distinguish the line segments constituting the first adjustment surface 211 and the second adjustment surface 62, and are not regarded as limiting the shape of the curved line segments.

[0128] In some embodiments, the orthographic projection of the shading layer 4 on the substrate 1 is spaced apart from the orthographic projection of the first adjustment surface 211 on the substrate 1 . In this case, the orthographic projection of the pixel opening 201 on the substrate 1 is located within the orthographic projection of the light-transmitting opening 401 of the shading layer 4 on the substrate 1 .

[0129] This structural design can increase the aperture ratio of the light shielding layer 4 to a certain extent. The larger the aperture ratio of the light shielding layer 4, the more conducive it is to light emission, and accordingly, the better the viewing angle of the display panel 10. Therefore, a larger light-transmitting opening 401 helps to increase the viewing angle of the display panel 10 and the brightness of the display panel 10, and also helps to make the color transition between light-emitting elements 7 of different colors softer. However, correspondingly, an excessively large aperture ratio will also have a negative impact on the reflectivity of the display panel 10.

[0130] In order to overcome the above problems and improve the visual effect of the display panel 10 in a non-lit state, it is necessary to adjust and limit the size of the above-mentioned light shielding layer 4.

[0131] See also Figure 3 In the direction perpendicular to the plane of the substrate 1, there is a spacing between the orthographic projection of the side of the above-mentioned light-shielding layer 4 close to the light-transmitting opening 401 on the substrate 1 and the orthographic projection of the pixel opening 201 on the substrate 1, and the spacing is the first distance, denoted as d; the distance between the surface of the side of the light-shielding layer 4 close to the substrate 1 and the end of the first adjustment surface 211 close to the pixel opening 201 is the second distance, denoted as h.

[0132] The angle between the end of the first adjustment surface 211 close to the pixel opening 201 and the plane where the substrate 1 is located should be no less than (or greater than) the preset angle θ.

[0133] The relationship between the preset angle and the first distance d and the second distance h is:

[0134]

[0135] Wherein: θ is a preset angle, d is a first distance, h is a second distance, and n is a refractive index of the filling layer 3 .

[0136] In some embodiments, when the area of ​​the pixel opening 201 on the pixel definition layer 2 accounts for 17%, and the first distance between the side of the light shading layer 4 close to the light-transmitting opening 401 and the corresponding pixel opening 201 is 5 μm, the reflectivity gain of the display panel 10 is 0.2 to 0.3; when the area of ​​the pixel opening 201 on the pixel definition layer 2 accounts for 13%, and the first distance between the side of the light shading layer 4 close to the light-transmitting opening 401 and the corresponding pixel opening 201 is 8 μm, the reflectivity gain of the display panel 10 is 0.3 to 0.4.

[0137] The reflectivity gain can be simply understood as the benefit obtained by reducing the reflectivity. In the display panel 10, reducing the reflectivity can make the screen clearly visible even under strong light, reduce the interference of reflected light on vision, and thus improve the user experience.

[0138] When the filling layer 3 is a single film layer, the refractive index is the refractive index of the filling layer 3; when the filling layer 3 is a multi-layer structure, the refractive index can be an equivalent refractive index obtained through calculation, or the refractive index of the film layer with the largest thickness among the film layers constituting the filling layer 3. The value of the refractive index can be adaptively adjusted as needed, and will not be described in detail here.

[0139] It should be noted that, since the first adjustment surface 211 covers the second adjustment surface 62 of the protrusion 6, and the end of the first adjustment surface 211 close to the pixel opening 201 extends to the connection between the second adjustment surface 62 and the supporting surface 61, the above-mentioned second distance h can also be regarded as the distance between the side surface of the light-shielding layer 4 close to the substrate 1 and the side surface of the protrusion 6 facing away from the substrate 1 (this distance refers to the film thickness).

[0140] Along the direction approaching the substrate 1, the angle between the arc segment 2111 constituting the first adjustment surface 211 and the substrate 1 gradually decreases. Therefore, along the direction approaching the substrate 1, the angle between the section at each position of the first adjustment surface 211 and the substrate 1 gradually decreases. Correspondingly, the angle between the other positions of the first adjustment surface 211 not close to one end of the pixel opening 201 and the substrate 1 can be less than the above-mentioned preset angle θ, or can be greater than the above-mentioned preset angle θ. It is only necessary to ensure that the first adjustment surface 211 can reflect the light incident through the light-transmitting opening 401 to the shading layer 4. This embodiment does not limit its specific angle value.

[0141] See also Figure 3 The display panel 10 further includes a light emitting element 7 , and the light emitting element 7 is located at the pixel opening 201 .

[0142] Specifically, the light-emitting element 7 includes a first electrode 71, a light-emitting functional layer 72 and a second electrode 73 which are stacked, wherein the first electrode 71 is located between the pixel definition layer 2 and the substrate 1, the first electrode 71 covers the side of the protrusion 6 facing away from the substrate 1 and a portion of the surface of the first electrode 71 is exposed through the pixel opening 201, the light-emitting functional layer 72 covers the pixel opening 201, and the second electrode 73 is located on the side of the light-emitting functional layer 72 facing away from the substrate 1 and covers the first adjustment surface 211.

[0143] Therefore, the portion of the second electrode 73 covering the first adjustment surface 211 will form a reflective surface that reflects ambient light. Due to the special morphology of the first adjustment surface 211, the ambient light irradiated to this position can be reflected to the bottom of the light shielding layer 4, so as to achieve the effect of reducing the reflectivity of the display panel 10. Figure 3 The dotted lines in the figure are schematic diagrams of the light paths of the incident light and the reflected light.

[0144] In other embodiments, the first electrode 71 covers the second adjustment surface 62, so the portion of the first electrode 71 covering the second adjustment surface 62 can also form a reflective surface for reflecting ambient light. Since the inclination of the second adjustment surface 62 is greater than the inclination of the first adjustment surface 211, the reflective surface formed on the surface of the first electrode 71 can also have the function of reflecting ambient light to below the light shielding layer 4.

[0145] The above two reflection surfaces can both reflect ambient light to below the light shielding layer 4 , so as to achieve the effect of reducing the reflectivity of the display panel 10 .

[0146] One of the first electrode 71 and the second electrode 73 is an anode, and the other is a cathode.

[0147] In this embodiment, the first electrode 71 is an anode, and the second electrode 73 is a cathode.

[0148] In some embodiments, the first electrode 71 can cover the entire second adjustment surface 62 . In this case, the orthographic projection of the protrusion 6 on the substrate 1 is located within the orthographic projection of the first electrode 71 on the substrate 1 .

[0149] In other similar embodiments, the edge of the first electrode 71 in the plane direction of the substrate 1 can further extend outward and exceed the protrusion 6 .

[0150] Specifically, the distance between the orthographic projection outer contour of the first electrode 71 on the substrate 1 and the orthographic projection outer contour of the protrusion 6 on the substrate 1 is not less than 1 μm.

[0151] In some embodiments, the orthographic projection of the first adjustment region 21 on the substrate 1 is located within the orthographic projection of the first electrode 71 on the substrate 1 .

[0152] See also Figure 3 The display panel 10 also includes a filter element 5 .

[0153] Specifically, the filter element 5 is located on the side of the filling layer 3 facing away from the substrate 1 and is arranged corresponding to the pixel opening 201 .

[0154] The light emitting element 7 is located at the pixel opening 201 , so the filter element 5 is arranged corresponding to the light emitting element 7 .

[0155] In some embodiments, the light emitting element 7 includes a first light emitting element, a second light emitting element and a third light emitting element emitting different colors, and correspondingly, the filter element 5 also has a corresponding first filter element, a second filter element and a third filter element.

[0156] Specifically, the first filter element is arranged corresponding to the first light-emitting element, the second filter element is arranged corresponding to the second light-emitting element, and the third filter element is arranged corresponding to the third light-emitting element.

[0157] It should be noted that there are many ways to arrange the first light-emitting element, the second light-emitting element and the third light-emitting element with different luminous colors, such as Figure 2 As shown. Figure 2 Taking the orientation shown as an example, the same light emitting elements 7 are arranged in sequence along the horizontal direction to form pixel rows, and different pixel rows formed by different light emitting elements 7 are parallel to each other.

[0158] The different light emitting elements 7 can be arranged in sequence along a fixed direction according to a certain rule to form regularly arranged pixel rows and pixel columns, and a plurality of pixel rows and pixel columns together constitute a pixel matrix for presenting an image.

[0159] Specifically, it is defined that the first light-emitting element is used to emit blue light, the second light-emitting element is used to emit green light, and the third light-emitting element is used to emit red light. The first filter element is used to absorb light of other colors in the environment except blue light to reduce the reflectivity of the ambient light, and at the same time, the blue light emitted by the first light-emitting element will not be absorbed by the first filter element; the second filter element is used to absorb light of other colors in the environment except green light to reduce the reflectivity of the ambient light, and at the same time, the green light emitted by the first light-emitting element will not be absorbed by the second filter element; the third filter element is used to absorb light of other colors in the environment except red light to reduce the reflectivity of the ambient light, and at the same time, the red light emitted by the first light-emitting element will not be absorbed by the third filter element.

[0160] In addition, when the ambient light energy that is not absorbed by the filter element 5 is irradiated to the first adjustment area 21 of the pixel definition layer 2, it can be guided and reflected to the shading layer 4 under the action of the first adjustment surface 211 with a special shape, so as to reduce the intensity of the ambient light re-emitted through the filter element 5, thereby achieving the effect of further reducing the reflectivity of the display panel 10.

[0161] In this embodiment, the filter element 5 and the light shielding layer 4 are located in the same layer and are spaced apart.

[0162] See also Figure 3 , the filter element 5 is disposed in the light-transmitting opening 401 of the light-shielding layer 4. Since the sizes of the filter elements 5 required for different light-emitting elements 7 may be different, it is possible that the thickness of some filter elements 5 is greater than the thickness of the light-shielding layer 4 and protrudes relative to the light-transmitting opening 401. This embodiment does not limit this.

[0163] Specifically, at least a portion of the filter element 5 is located at the light-transmitting opening 401 ; the orthographic projection of the filter element 5 on the substrate 1 coincides with the orthographic projection of the light-transmitting opening 401 on the substrate 1 .

[0164] Also, see Figure 3 In the thickness direction of the display panel 10 , the protrusion 6 is located below the filter element 5 , and at least a portion of the first adjustment area 21 of the pixel definition layer 2 is also located below the filter element 5 .

[0165] See also Figure 7 In the thickness direction of the display panel 10 , the plurality of light emitting elements 7 are arranged in a certain order and are respectively located under the corresponding filter elements 5 . Two adjacent filter elements 5 are connected via the light shielding layer 4 .

[0166] In some embodiments, the pixel definition layer 2 further includes a climbing region 22, and the climbing region 22 is located on a side of the first adjustment region 21 facing away from the pixel opening 201, see Figure 3 , Figure 5 and Figure 6 .

[0167] Specifically, a surface of the climbing region 22 facing away from the substrate 1 forms a climbing surface 221 , and the orthographic projection of the climbing surface 221 on the substrate 1 is located on the peripheral side of the orthographic projection of the first adjustment region 21 on the substrate 1 .

[0168] The first adjustment area 21 encloses the pixel opening 201, which means that the first adjustment area 21 is an annular structure. The above-mentioned climbing area 22 can also be an annular structure arranged around the outer peripheral side of the first adjustment area 21. In the direction perpendicular to the plane where the substrate 1 is located, the orthographic projection of the climbing surface 221 on the substrate 1 is arranged around the orthographic projection of the first adjustment area 21 on the substrate 1, and is located on the side of the orthographic projection of the first adjustment area 21 on the substrate 1 facing away from the orthographic projection of the pixel opening 201 on the substrate 1.

[0169] See also Figure 3 , Figure 5 and Figure 6 , the climbing area 22 is located below the shading layer 4, and the orthographic projection of the climbing area 22 on the substrate 1 does not overlap with the orthographic projection of the light-transmitting opening 401 on the substrate 1. At this time, the orthographic projection of the climbing area 22 on the substrate 1 is located within the orthographic projection of the shading layer 4 on the substrate 1.

[0170] In some embodiments, the climbing surface 221 is in direct contact with the end of the first adjustment surface 211 facing away from the pixel opening 201 . At this time, the orthographic projection outer contour of the climbing surface 221 on the substrate 1 partially overlaps with the orthographic projection outer contour of the first adjustment surface 211 on the substrate 1 .

[0171] In other similar embodiments, there is a certain gap between the climbing surface 221 and the end of the first adjustment surface 211 facing away from the pixel opening 201 . At this time, the orthographic projection of the climbing surface 221 on the substrate 1 is arranged alternately with the orthographic projection of the first adjustment surface 211 on the substrate 1 .

[0172] Affected by the processing accuracy, any display panel 10 may have one of the above structures, or may have both of the above structures.

[0173] In order to form the above-mentioned climbing surface 221 and the first adjustment surface 211 on the surface of the pixel definition layer 2 facing away from the substrate 1, in some embodiments, the above-mentioned pixel definition layer 2 can be set to a multi-layer structure.

[0174] Specifically, the pixel definition layer 2 is a double-layer structure.

[0175] See also Figure 3 The pixel definition layer 2 includes a light-transmitting layer 210 and a light-absorbing layer 220 which are stacked, and the light-transmitting layer 210 is located on the side of the light-absorbing layer 220 facing away from the substrate 1. There is a certain distance between the light-transmitting layer 210 and the pixel opening 201. In addition, the end of the light-transmitting layer 210 pointing to the pixel opening 201 can form the climbing area 22 and the climbing surface 221; the light-absorbing layer 220 covers the second adjustment surface 62 of the protrusion 6 to form the first adjustment area 21 and the first adjustment surface 211.

[0176] Specifically, there is a gap between the orthographic projection of the light-transmitting layer 210 on the substrate 1 and the orthographic projection of the pixel opening 201 on the substrate 1 .

[0177] In this embodiment, the light-transmitting layer 210 is made of a material with good light-transmitting effect, and the light-absorbing layer 220 includes a black material for absorbing ambient light.

[0178] Specifically, the material of the light-transmitting layer 210 includes at least one of photosensitive polyimide, colorless acrylic resin and the like; the black material used to form the light-absorbing layer 220 may include carbon black, organic light-absorbing material and the like.

[0179] In order to form the above-mentioned climbing surface 221 and the first adjustment surface 211 on the surface of the pixel definition layer 2 facing away from the substrate 1, in some embodiments, the above-mentioned pixel definition layer 2 can be set to a single-layer structure.

[0180] See also Figure 5 The pixel definition layer 2 can be made of a material with good light transmission effect. The light-transmitting layer 210 forms a first adjustment area 21 with an outward slope by covering the second adjustment surface 62 of the protrusion 6 .

[0181] It can be understood that the display panel 10 provided in the embodiment of the present application can obtain an inclined first adjustment surface 211 by adjusting the shape of the area located between the light-transmitting opening 401 and the pixel opening 201. The special shape of the first adjustment surface 211 can reflect the light irradiated to the area to the bottom of the light-shielding layer 4. By reducing the reflected light emitted through the light-transmitting opening 401, the reflectivity of the display panel 10 to ambient light is effectively reduced, which helps to improve the optical effect of the display panel 10 in a dark state and optimize the performance of the display panel 10.

[0182] In a second aspect, the present application further provides a display device 100, see Figure 8 The display device 100 includes any one of the display panels 10 described above.

[0183] Regarding the specific structure of the display panel 10 , please refer to the specific description in the aforementioned embodiment, which will not be repeated here.

[0184] The display device 100 provided in this embodiment can be a mobile phone, a notebook, a tablet computer, a smart watch, a smart bracelet, a navigator, a display, a personal digital assistant (PDA), and other products or components with display functions.

[0185] Since the display device 100 has the above-mentioned display panel 10 , the display device 100 at least includes the beneficial effects of any one or several of the above-mentioned display panels 10 . The specific effects are described above and will not be repeated here.

[0186] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A display panel, characterized in that: include: substrate; A pixel definition layer, located on one side of the substrate, the pixel definition layer comprises a first adjustment area and a pixel opening surrounded by the first adjustment area, and a surface of the first adjustment area facing away from the substrate forms a first adjustment surface; In a direction perpendicular to the plane where the substrate is located, one end of the first adjustment surface away from the pixel opening is tilted toward the substrate.

2. The display panel according to claim 1, characterized in that: The display panel further comprises a filling layer and a light shielding layer, wherein the filling layer covers the pixel definition layer, the light shielding layer is located on a side of the filling layer facing away from the substrate and encloses a plurality of light-transmitting openings, the light-transmitting openings are arranged corresponding to the pixel openings, and the orthographic projection of the light shielding layer on the substrate is arranged at an interval with the orthographic projection of the pixel opening on the substrate; Preferably, the orthographic projection of the light shielding layer on the substrate is spaced apart from the orthographic projection of the first adjustment surface on the substrate; Preferably, an outer contour of an orthographic projection of the light shielding layer on the substrate partially overlaps with an outer contour of an orthographic projection of the first adjustment surface on the substrate.

3. The display panel according to claim 2, characterized in that: The angle between the end of the first adjustment surface close to the pixel opening and the plane where the substrate is located is greater than a preset angle; In a direction perpendicular to the plane where the substrate is located, the distance between the orthographic projection of the light shielding layer on the substrate and the orthographic projection of the pixel opening on the substrate is a first distance, and the distance between the surface of the light shielding layer close to the substrate and the end of the first adjustment surface close to the pixel opening is a second distance, then: Wherein, θ is the preset angle, d is the first distance, h is the second distance, and n is the refractive index of the filling layer; Preferably, at least a portion of the first adjustment surface is a curved surface; Preferably, in a direction perpendicular to the plane where the substrate is located, the cross section of the first adjustment surface includes at least two arcuate surface segments, and among the at least two arcuate surface segments, the angle between the arcuate surface segment on the side close to the substrate and the plane where the substrate is located is smaller than the angle between the arcuate surface segment on the side far from the substrate and the plane where the substrate is located; Preferably, in any two adjacent arc surface segments, the angle between the arc surface segment close to the substrate and the plane where the substrate is located is smaller than the angle between the arc surface segment far from the substrate and the plane where the substrate is located; Preferably, along a direction approaching the substrate, an angle between the arc surface segment and the substrate gradually decreases.

4. The display panel according to any one of claims 1 to 3, characterized in that: The display panel further includes a protrusion disposed corresponding to the pixel opening, wherein the protrusion is located between the pixel definition layer and the substrate; The surface of the protrusion facing away from the substrate includes a support surface and a second adjustment surface, the second adjustment surface is arranged around the support surface, the first adjustment area covers the second adjustment surface, and the support surface is exposed relative to the pixel opening; Wherein, the second adjustment surface and the first adjustment surface are inclined toward the same side, and the inclination of the second adjustment surface is greater than the inclination of the first adjustment surface; Preferably, at least a portion of the second adjustment surface is a curved surface; Preferably, in a direction perpendicular to the plane where the substrate is located, the cross section of the second adjustment surface includes at least two curved surface segments, and among the at least two curved surface segments, the angle between the curved surface segment on the side close to the substrate and the plane where the substrate is located is smaller than the angle between the curved surface segment on the side away from the substrate and the plane where the substrate is located; Preferably, among any two adjacent curved surface segments, the angle between the curved surface segment close to the substrate and the plane where the substrate is located is smaller than the angle between the curved surface segment far from the substrate and the plane where the substrate is located; Preferably, along the direction approaching the substrate, the angle between the curved surface segment and the substrate gradually decreases; Preferably, the angle between each of the curved surface segments and the plane where the substrate is located is in the range of 20° to 60°; Preferably, in a direction perpendicular to the plane where the substrate is located, the thickness of the protrusion is greater than 1 μm.

5. The display panel according to claim 4, characterized in that: The display panel also includes a light-emitting element, which includes a first electrode, a light-emitting functional layer and a second electrode. The first electrode is located between the pixel definition layer and the substrate, the first electrode covers the side of the protrusion facing away from the substrate and a portion of the surface of the first electrode is exposed through the pixel opening, the light-emitting functional layer covers the pixel opening, and the second electrode is located on the side of the light-emitting functional layer facing away from the substrate and covers the first adjustment surface.

6. The display panel according to claim 5, characterized in that: The orthographic projection of the protrusion on the substrate is located within the orthographic projection of the first electrode on the substrate; Preferably, a distance between an orthographic projection outer contour of the first electrode on the substrate and an orthographic projection outer contour of the protrusion on the substrate is not less than 1 μm; Preferably, the orthographic projection of the first adjustment area on the substrate is located within the orthographic projection of the first electrode on the substrate.

7. The display panel according to claim 1, characterized in that: The pixel definition layer further comprises a climbing area, and the climbing area is located on a side of the first adjustment area facing away from the pixel opening; A surface of the climbing area on one side facing away from the substrate forms a climbing surface, and an orthographic projection of the climbing surface on the substrate is located on the peripheral side of the orthographic projection of the first adjustment area on the substrate; Preferably, an outer contour of an orthographic projection of the climbing surface on the substrate partially overlaps with an outer contour of an orthographic projection of the first adjustment surface on the substrate.

8. The display panel according to claim 7, characterized in that: The pixel definition layer comprises a light-transmitting layer and a light-absorbing layer which are stacked, wherein the light-transmitting layer is located on a side of the light-absorbing layer facing away from the substrate, and an orthographic projection of the light-transmitting layer on the substrate is spaced apart from an orthographic projection of the pixel opening on the substrate; Wherein, the first adjustment area is formed in the light absorbing layer, and the climbing area is formed in the light transmitting layer; Preferably, the material of the light absorbing layer includes black material.

9. The display panel according to claim 2, characterized in that: The display panel further includes a filter element, which is located on a side of the filling layer facing away from the substrate and is arranged corresponding to the pixel opening; Preferably, the filter element and the light shielding layer are located in the same layer and are arranged at intervals; Preferably, at least part of the filter element is located in the light-transmitting opening; Preferably, the orthographic projection of the filter element on the substrate coincides with the orthographic projection of the light-transmitting opening on the substrate; Preferably, the orthographic projection of the pixel opening on the substrate is located within the orthographic projection of the light-transmitting opening on the substrate.

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

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