Display panel and display device

Abstract

The utility model provides a display panel and a display device. The display panel comprises a substrate; the plurality of sub-pixels are arranged on the substrate base plate; the pixel defining layer is arranged on the substrate, the pixel defining layer comprises a plurality of opening areas, the opening areas are used for limiting light emitting areas of the sub-pixels, each opening area comprises a light outlet far away from one side of the substrate, and the light outlets are used for limiting light emitting areas and light emitting directions of the light emitting areas; the direction of the light outlet of at least one opening area deviates from the direction perpendicular to the substrate, and the orthographic projection area of the light outlet on the substrate is smaller than the orthographic projection area of the opening area on the substrate.

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 products are widely used due to their advantages such as flexibility, wide viewing angle, and high color gamut. With the development of technology, wide viewing angle has become one of the development directions of display products.

[0003] In order to improve the display effect of display products at different viewing angles, some display products adopt a design of customizing the light emission angle of the display panel. However, the customization of the light emission angle of the display panel may cause a large light loss problem. Summary of the invention

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

[0005] substrate substrate;

[0006] A plurality of sub-pixels are disposed on the substrate;

[0007] A pixel defining layer is arranged on the base substrate, the pixel defining layer includes a plurality of opening areas, the opening areas are used to define the light emitting area of ​​the sub-pixel, the opening areas include a light outlet away from the side of the base substrate, the light outlet is used to define the light outlet area and light outlet direction of the light emitting area, the direction of the light outlet of at least one of the opening areas deviates from the direction perpendicular to the base substrate, and the orthographic projection area of ​​the light outlet on the base substrate is smaller than the orthographic projection area of ​​the opening area on the base substrate.

[0008] Optionally, the sub-pixel includes a light-emitting device, and the light-emitting device includes a first electrode, an organic light-emitting functional layer, and a second electrode which are sequentially stacked on the base substrate;

[0009] The pixel defining layer is located on a side of the first electrode away from the base substrate, the opening area leaks at least a portion of the first electrode, and the light emitting area of ​​the organic light emitting functional layer is located in the opening area and contacts the first electrode.

[0010] Optionally, an orthographic projection of the light outlet on the base substrate substantially overlaps with an orthographic projection of a light emitting region of the organic light emitting functional layer on the base substrate.

[0011] Optionally, the orthographic projection edge of the light outlet on the base substrate overlaps with the orthographic projection edge of the light emitting region of the organic light emitting functional layer on the base substrate; or

[0012] The orthographic projection edge of the light emitting region of the organic light emitting functional layer on the base substrate exceeds the orthographic projection edge of the light outlet on the base substrate, and the orthographic projection edge of the light emitting region of the organic light emitting functional layer on the base substrate is spaced from the orthographic projection edge of the opening area on the base substrate.

[0013] Optionally, the lowest point of the light outlet has a height perpendicular to the base substrate that is one third to one times the height of the highest point of the opening area, and the organic light-emitting functional layer is disconnected at the position of the light outlet.

[0014] Optionally, the organic light-emitting functional layer includes a plurality of sub-functional layers, and at least one of the sub-functional layers is disconnected at the position of the light outlet.

[0015] Optionally, it also includes:

[0016] A light-emitting device layer, wherein the light-emitting device layer is disposed on the base substrate, the pixel defining layer is disposed on a side of the light-emitting device layer away from the base substrate, and the light-emitting device layer includes a plurality of light-emitting devices;

[0017] A color filter layer, located on a side of the light-emitting device layer away from the base substrate, the color filter layer comprising a plurality of color filter units;

[0018] The sub-pixel includes the light-emitting device and the color filter unit, and the color filter unit is located in the opening area.

[0019] Optionally, the color filter unit is filled in the opening area, and in a direction perpendicular to the base substrate, the height of the highest point of the color filter unit is less than or equal to the height of the highest point of the opening area.

[0020] Optionally, the pixel defining layer includes a first pixel defining layer and a second pixel defining layer, the first pixel defining layer includes a plurality of first opening areas, the first opening area includes a first light outlet away from a side of the base substrate, and an orthographic projection area of ​​the first light outlet on the base substrate is smaller than an orthographic projection area of ​​the first opening area on the base substrate, and the second pixel defining layer includes a plurality of second opening areas, the second opening area includes a second light outlet away from a side of the base substrate, and an orthographic projection area of ​​the second light outlet on the base substrate is smaller than an orthographic projection area of ​​the second opening area on the base substrate;

[0021] The display panel further includes:

[0022] A light emitting device layer, the light emitting device layer is arranged on the base substrate, and the light emitting device layer includes a plurality of light emitting devices;

[0023] A color filter layer, the color filter layer is located on a side of the light-emitting device layer away from the base substrate, and the color filter layer includes a plurality of color filter units;

[0024] The sub-pixel includes the light-emitting device and the color film unit, the light-emitting area of ​​the light-emitting device is located in the first opening area, the first opening area is used to define the light-emitting area of ​​the light-emitting device, the first light exit port is used to define the light-emitting area and light-emitting direction of the light-emitting area of ​​the light-emitting device, the color film unit is located in the second opening area, the second opening area is used to define the light-emitting area of ​​the color film unit, and the second light exit port is used to define the light-emitting area and light-emitting direction of the light-emitting area of ​​the color film unit.

[0025] Optionally, in a direction perpendicular to the base substrate, a cross-sectional shape of the opening region at the position of the light outlet is an arc-shaped protrusion, and the arc-shaped protrusion is disconnected at the position of the light outlet.

[0026] Optionally, the material of the pixel defining layer is a light shielding material.

[0027] Optionally, it also includes:

[0028] An optical path adjustment layer is arranged on a side of the pixel definition layer away from the base substrate, the optical path adjustment layer comprises a plurality of lens units, and the light of the light emitting area of ​​the sub-pixel is emitted from the light emitting area and the light emitting direction and then passes through the lens unit;

[0029] The direction of at least one lens unit deviates from a direction perpendicular to the substrate.

[0030] A third aspect of the embodiments of the present disclosure provides a display device, comprising: a display panel as described in any one of the first aspects.

[0031] The technical solution provided in the embodiments of the present disclosure has at least the following technical effects or advantages:

[0032] The display panel provided by the embodiment of the present disclosure has a plurality of sub-pixels and a pixel defining layer arranged on a substrate, the pixel defining layer including a plurality of opening areas, the opening areas being used to define the light-emitting area of ​​the sub-pixels, the opening areas including a light outlet far from a side of the substrate, the light outlet being used to define the light-emitting area and light-emitting direction of the light-emitting area, the direction of the light outlet of at least one opening area deviates from the direction perpendicular to the substrate, and the orthographic projection area of ​​the light outlet on the substrate is smaller than the orthographic projection area of ​​the opening area on the substrate. By setting the position and direction of the light outlet of the opening area, the light of the light-emitting area is emitted according to the preset light-emitting area and light-emitting direction, meeting the customized light-emitting angle requirements, and since the orthographic projection area of ​​the light outlet on the substrate is smaller than the orthographic projection area of ​​the opening area on the substrate, the light loss caused by the multi-directional scattering of stray light is reduced, and the light-emitting efficiency is improved.

[0033] The above description is only an overview of the technical solution provided by the embodiment of the present disclosure. In order to more clearly understand the technical means of the embodiment of the present disclosure, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the present disclosure more obvious and easy to understand, the specific implementation method of the embodiment of the present disclosure is listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present disclosure. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0035] Figure 1 A partial cross-sectional schematic diagram of an exemplary OLED display panel perpendicular to the substrate is shown;

[0036] Figure 2 Shows Figure 1 A schematic diagram of the light path in the opening area of ​​the middle pixel definition layer;

[0037] Figure 3 A partial cross-sectional schematic diagram of an OLED display panel according to an embodiment of the present application is shown on a plane perpendicular to the substrate;

[0038] Figure 4 Shows Figure 3 The local micrograph within the middle dotted circle;

[0039] Figure 5 Shows Figure 3 A schematic diagram of the opening area and light outlet of the middle pixel definition layer;

[0040] Figure 6 Shows Figure 3A schematic diagram of the light outlet direction of the opening area of ​​the middle pixel definition layer;

[0041] Figure 7 A schematic diagram of an orthographic projection of an opening area and a light outlet of the opening area on a substrate is shown;

[0042] Figure 8 Shows Figure 3 A schematic diagram of the light path in the opening area of ​​the middle pixel definition layer;

[0043] Fig. 9 Another partial cross-sectional schematic diagram of the OLED display panel of an embodiment of the present application is shown vertically to the base substrate;

[0044] Fig.10 Shows Figure 3 Schematic diagram of the height relationship between the light outlet and the opening area.

[0045] Fig.11 Another partial cross-sectional schematic diagram of the OLED display panel of an embodiment of the present application is shown on a plane perpendicular to the base substrate;

[0046] Fig.12 Shows Fig.11 Schematic diagram of the light path in the opening area;

[0047] Fig.13 Shows Fig.11 Schematic diagram of the height relationship between the color film unit and the opening area;

[0048] Fig.14 Another partial cross-sectional schematic diagram of the OLED display panel 200 of the embodiment of the present application is shown on a plane perpendicular to the base substrate 21;

[0049] Fig.15 A schematic diagram of a display device provided by an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0050] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that the term "plurality" appearing herein includes two or more than two situations.

[0051] As used herein, "about," "substantially," or "approximately" includes the stated value and an average value that is within an acceptable range of variation from the particular value as determined by one of ordinary skill in the art taking into account the measurements in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system).

[0052] As used herein, "parallel", "perpendicular", and "equal" include the situations described and situations similar to the situations described, and the range of the similar situations is within the acceptable deviation range, wherein the acceptable deviation range is determined by a person of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, wherein the acceptable deviation range of approximate parallelism may be, for example, a deviation within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, wherein the acceptable deviation range of approximate perpendicularity may also be, for example, a deviation within 5°. "Equal" includes absolute equality and approximate equality, wherein the acceptable deviation range of approximate equality may be, for example, the difference between the two equalities is less than or equal to 5% of either one.

[0053] It will be understood that when a layer or an element is referred to as being on another layer or substrate, it can be directly on the other layer or substrate, or intervening layers may be present between the layer or element and the other layer or substrate.

[0054] In order to improve the display effect of display products at different viewing angles, some display products adopt a design of customizing the light emission angle of the display panel, that is, the light emission angle of the display panel is offset according to the display angle requirements. Figure 1 FIG. 1 shows a partial cross-sectional schematic diagram of an exemplary OLED display panel in a direction perpendicular to the substrate. Figure 1 As shown, the display panel 100 may include: a base substrate 11; a plurality of sub-pixels 12 arranged on the base substrate 11, a pixel defining layer 13 arranged on the base substrate 11, the pixel defining layer 13 including a plurality of opening areas 131, the opening areas 131 are used to define the light-emitting areas of the sub-pixels 12, and the shape of the opening areas 131 on the cross section perpendicular to the base substrate 11 is a rectangular opening; the sub-pixel 12 includes a light-emitting device, the light-emitting device includes a first electrode 121, an organic light-emitting functional layer 122 and a second electrode 123 sequentially stacked on the base substrate 11, the light-emitting area of ​​the organic light-emitting functional layer 122 is located in the opening area 131 and in contact with the first electrode 121; the display panel 100 also includes a color film layer 14, the color film layer 14 includes a plurality of color film units 141, and the sub-pixel 12 also includes a color film unit 141.

[0055] refer to Figure 1As shown, in order to achieve customization of the light output angle of the display panel 100 and meet the display effects of different viewing angles, the display panel 100 may further include: an optical path adjustment layer 15, the optical path adjustment layer 15 is arranged on the side of the color filter layer 14 away from the base substrate 11, the optical path adjustment layer 15 includes a plurality of microprisms 151, each microprism 151 is in the shape of an arc-shaped protrusion on the cross section perpendicular to the base substrate 11, and the light in the light-emitting area in the opening area 131 is emitted to the color filter unit 141 and then concentrated by the microprism 151 and then emitted. Among them, the offset angle between the microprism 151 and the color filter unit 141 is set according to the viewing angle requirements of the display product, for example: when viewing the screen from the right side of the screen facing the display product, in order to ensure the display effect of the right viewing angle, the microprism 151 in the display panel 100 corresponding to the right viewing angle needs to be set to the left side of the center line of the color filter unit 141, and the center line of the color filter unit 141 is perpendicular to the base substrate 11.

[0056] Figure 2 FIG. 1 shows a schematic diagram of an exemplary optical path of the opening area 131 of the pixel defining layer 13 in a cross section perpendicular to the direction of the substrate 11. Figure 2 As shown, the inventors found in actual applications that when the opening area 131 is in the shape of a rectangular opening on a cross section perpendicular to the base substrate 11, the light emitted from the light-emitting area in the rectangular opening can be scattered in multiple directions, and the light-emitting range of the light-emitting area is larger. Then, when the offset between the microprism 151 and the color film unit 141 is large, or the offset between the color film unit 141 and the opening area 131 is large, or the offset between the microprism 151 and the opening area 131 is large, since the light emitted in the opening area 131 is scattered in multiple directions, part of the stray light may not be able to converge at the microprism 151, thereby causing a large amount of stray light loss and reducing the light output efficiency; in addition, when the light loss is large, it may further cause the intensity and color of the light to weaken, thereby reducing the user experience.

[0057] Therefore, in order to improve the problem of stray light loss when customizing the light output angle on the basis of meeting the demand for customized light output angle of OLED display products, the embodiment of the present disclosure performs morphological design on the opening area of ​​the pixel defining layer, and sets the position and direction of the light output port in the opening area so that the light from the light-emitting area is emitted according to the set light output area and light output direction, so as to meet the demand for customized light output angle. In addition, since the orthographic projection area of ​​the light output port on the substrate is smaller than the orthographic projection area of ​​the opening area on the substrate, and the light emitted from the light-emitting area is emitted from the light output port, the range of light scattering can be limited, thereby reducing the light loss caused by the multi-directional scattering of stray light and improving the light output efficiency.

[0058] The display panel provided in the embodiment of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be noted that the display panel may be an OLED display panel, or may be other display panels having a pixel defining layer structure such as a QLED (Quantum Dot Light Emitting Diodes) display substrate, and this embodiment does not limit this.

[0059] Figure 3 A partial cross-sectional schematic diagram of an OLED display panel according to an embodiment of the present application is shown on a plane perpendicular to the substrate;

[0060] like Figure 3 As shown, the embodiment of the present disclosure provides a display panel 200, which includes: a base substrate 21; a plurality of sub-pixels 22 arranged on the base substrate 21; a pixel defining layer 23 arranged on the base substrate 21, the pixel defining layer 23 includes a plurality of opening areas 231, the opening areas 231 are used to define the light-emitting areas of the sub-pixels 22, the opening areas 231 include light exit ports 2311 away from a side of the base substrate 21, the light exit ports 2311 are used to define the light-emitting areas and light-emitting directions of the light-emitting areas, the direction of the light exit ports 2311 of at least one of the opening areas 231 deviates from the direction perpendicular to the base substrate 21, and the orthographic projection area of ​​the light exit ports 2311 on the base substrate 21 is smaller than the orthographic projection area of ​​the opening areas 231 on the base substrate 21.

[0061] The display panel 200 may include a base substrate 21, and the base substrate 21 may include a display area and a peripheral area located at at least one side of the display area. It should be noted that the peripheral area surrounds the display area, but the embodiments of the present disclosure are not limited thereto. In other embodiments, the peripheral area may be located at at least one side of the display area but does not surround the display area.

[0062] For example, the substrate 21 may be a flexible substrate. The flexible substrate may include, for example, a PI (Polyimide) substrate, a PET (Polyethy l ene Terephtha l ate) substrate, or a PEN (Polyethy l ene naphtha late diformic acid glycol ester) substrate. In this case, the display panel 200 may be a flexible display panel 200.

[0063] For another example, the substrate 21 may be a rigid substrate. The rigid substrate may include, for example, a glass substrate, an ultra-thin glass (UTG) substrate, a PMMA (Polymethyl methacrylate) substrate, or a silicon substrate. In this case, the display panel 200 may be a rigid display panel 200.

[0064] It should be noted that the base substrate 21 may be a one-layer structure or a multi-layer structure. For example, the base substrate 21 may include at least one flexible substrate and at least one buffer layer, and the flexible substrate and the buffer layer are alternately stacked.

[0065] The display panel 200 may include a plurality of pixel units distributed in an array in the display area, and the pixel unit is the smallest unit for displaying an image. The pixel unit may be arranged in a plurality, for example, along a row extending in a first direction (e.g., a row direction) and a column extending in a second direction (e.g., a column direction) in an array. However, the embodiments of the present disclosure do not specifically limit the arrangement of the pixel units, and the pixel units may be arranged in various forms. For example, the pixel unit may be arranged so that the direction inclined relative to the first direction and the second direction becomes the column direction, and the direction intersecting the column direction becomes the row direction.

[0066] It should be noted that a pixel unit may include multiple sub-pixels 22, each sub-pixel 22 can display a single color, such as the red sub-pixel 22 displays red, the green sub-pixel 22 displays green, the blue sub-pixel 22 displays blue, and the white sub-pixel 22 displays white; the brightness (grayscale) of the sub-pixels 22 of different colors in each pixel can be adjusted, and the display of multiple colors can be achieved through color combination and superposition, thereby realizing full-color display of the display panel 200.

[0067] Each sub-pixel 22 may include a light-emitting device and a pixel driving circuit for driving the light-emitting element. For example, the red sub-pixel 22 may include a light-emitting device for emitting red light, the green sub-pixel 22 may include a light-emitting device for emitting green light, the blue sub-pixel 22 may include a light-emitting device for emitting red light, and the white sub-pixel 22 may include a light-emitting device for emitting white light. For example, the light-emitting device may be an organic light-emitting diode, a micro organic light-emitting diode (Micro Organic Light-Emitting Diode, Micro OLED), a quantum dot organic light-emitting diode (Quantum Dot Light Emitting Diodes, QLED), etc. The pixel driving circuit may include components such as transistors and capacitors. The pixel driving circuit receives a signal from a signal line set on the display panel 200, generates a current for driving the light-emitting device, and achieves the purpose of driving the light-emitting device to emit light by connecting to one of the first electrode 221 or the second electrode 223. For example, the pixel driving circuit is arranged on the substrate 21, and the light-emitting device is located on the side of the pixel driving circuit away from the substrate 21. For example, the pixel driving circuit may include a circuit structure such as 7T1C, 7T2C, 8T2C or 4T1C commonly used in the art.

[0068] In the OLED display panel 200, the light-emitting device of the sub-pixel 22 may include a first electrode 221, an organic light-emitting functional layer 222, and a second electrode 223 which are sequentially stacked on a base substrate 21. The first electrode 221 may be an anode, and the second electrode 223 may be a cathode. The organic light-emitting functional layer 222 includes a light-emitting material layer. Of course, in addition to the light-emitting material layer, the organic light-emitting functional layer 222 may also include an auxiliary light-emitting functional layer. The auxiliary light-emitting functional layer may include one or more of a hole injection layer, a hole transport layer, an electron blocking layer, an electron injection layer, an electron transport layer, and a hole blocking layer. In addition to the above layers, other functional film layers may also be included. The layers may include organic materials or inorganic materials such as quantum dots, etc., which are specifically set according to actual needs, and this embodiment does not impose any restrictions on this.

[0069] For example, the structure of the first electrode 221 can be a composite structure composed of a transparent conductive oxide film / metal film / transparent conductive oxide film stacked in sequence. The material of the transparent conductive oxide film is, for example, any one of ITO (Ind i um tin oxide) and IZO (Ind i um zinc oxide), and the material of the metal film is, for example, any one of gold (Au), silver (Ag), nickel (Ni) and platinum (Pt). For another example, the structure of the anode 251 can also be a single-layer structure, and the material of the single-layer structure can be any one of ITO, IZO, Au, Ag, Ni, and Pt.

[0070] For example, the cathodes of the light emitting devices may be electrically connected to each other to form an integrated structure. For example, the cathode material may be any one of aluminum (Al), silver (Ag) and magnesium (Mg), or any one of magnesium-silver alloy and aluminum-lithium alloy.

[0071] For example, the display panel 200 may further include a color filter layer 24, and the color filter layer 24 may be disposed on a side of the pixel defining layer 23 away from the base substrate 21. The sub-pixel 22 includes a light-emitting device, and the color filter layer 24 is disposed on a side of the light-emitting device away from the base substrate 21. The sub-pixel 22 further includes a color filter unit 241. For example, one sub-pixel 22 includes a light-emitting device and a color filter unit 241. The light-emitting material of the light-emitting device may be a white light material, and the light emitted by the light-emitting device is filtered by the color filter unit 241 before being emitted; the light-emitting material of the light-emitting device may be a color light material, for example, the red light emitted by the light-emitting device is filtered by the red color filter unit 241 before being emitted, the green light emitted by the light-emitting device is filtered by the green color filter unit 241 before being emitted, and the blue light emitted by the light-emitting device is filtered by the blue color filter unit 241 before being emitted.

[0072] Figure 4 Shows Figure 3 The local micrograph within the middle dotted circle; Figure 5 Shows Figure 3 Schematic diagram of the opening area 231 and the light outlet 2311 of the pixel definition layer 23.

[0073] Combination Figures 3 to 5 As shown, the display panel 200 further includes a pixel defining layer 23 disposed on the base substrate 21 , and the pixel defining layer 23 includes a plurality of opening areas 231 .

[0074] It should be noted that, in this article, the pixel defining layer 23 can be prepared by materials such as silicon nitride and silicon oxide. When preparing the pixel defining layer 23, the silicon nitride material can be deposited on the base substrate 21 to form a pixel defining layer film layer, and an opening area is formed at a preset position of the film layer in a direction perpendicular to the base substrate 21. Before preparing the next film layer of the pixel defining layer 23 (for example, an organic light-emitting functional layer), the interior of the opening area is hollow.

[0075] The opening area 231 is used to define the light-emitting area of ​​the sub-pixel 22, and it can be: each sub-pixel 22 corresponds to at least one opening area 231, and the light-emitting area of ​​the sub-pixel 22 is located in the opening area 231, so that part of the sub-pixel in the opening area 231 can effectively emit light, and part of the sub-pixel outside the opening area 232 cannot effectively emit light, thereby achieving light-emitting isolation of each sub-pixel. Among them, the shape, position, size, etc. of the light-emitting area of ​​the sub-pixel 22 can be defined by the opening area 231.

[0076] The opening area 231 includes a light exit port 2311 away from the side of the base substrate 21, and the light exit port 2311 is used to limit the light exit area and light exit direction of the light-emitting area. The direction of at least one light exit port of the opening area deviates from the direction perpendicular to the base substrate, and the orthographic projection area of ​​the light exit port on the base substrate is smaller than the orthographic projection area of ​​the opening area on the base substrate.

[0077] It should be noted that the light outlet 2311 is arranged on the side of the opening area 231 away from the base substrate 21, so that the light emitted from the light-emitting area defined by the opening area 231 is further limited by the light outlet 2311, that is, the light emitted from the light-emitting area is emitted according to the position and direction of the light outlet 2311.

[0078] The position and direction of the light outlet 2311 on the opening area 231 can be set according to the specific light output angle customization requirements, for example: set at a first side of the opening area 231 that deviates from being perpendicular to the base substrate 21, or set at a second side of the opening area 231 that deviates from being perpendicular to the base substrate 21. In order to further understand the direction of the opening area 231, the direction of the opening area 231 will be described below.

[0079] Figure 6 Shows Figure 3 A schematic diagram showing the direction of the light outlet 2311 of the opening area 231 of the pixel defining layer 23.

[0080] refer to Figure 6 As shown, the direction of the light outlet 2311 may refer to the angle at which the center line d1 of the light outlet 2311 deviates from the reference line d2 perpendicular to the base substrate 21. Figure 3The three opening regions 231 in the pixel defining layer 23 are defined from left to right as: a first opening region 231, a second opening region 231 and a third opening region 231. Figure 3 It can be seen from the figure that the direction of the light outlet 2311 of the first opening area 231 deviates from the left side of the reference line d2, the direction of the light outlet 2311 of the first opening area 231 is substantially coincident with the reference line d2, and the direction of the light outlet 2311 of the third opening area 231 deviates from the right side of the reference line d2. The embodiment of the present application does not limit the direction of the light outlet 2311 of the opening area 231, and can be set according to specific angle customization requirements.

[0081] It can be understood that the direction of the light outlet 2311 of at least one opening area 231 deviates from the direction perpendicular to the base substrate 21, so that the light emitted by the light-emitting area deviates from the direction perpendicular to the base substrate 21. Then, when viewing the screen of the display product from the user side, even if there is a certain angle offset between the user and the screen of the display product, for example, on the side of the screen of the display product, the display product still has a good display effect, that is, the viewing angle of the display product is widened, thereby improving the user experience.

[0082] Figure 7 A schematic diagram of the orthographic projection of the opening area and the light outlet of the opening area on the substrate is shown.

[0083] like Figure 7 As shown, since the light outlet 2311 is a component of the opening area 231, the orthographic projection of the light outlet 2311 on the base substrate 21 is located within the orthographic projection of the opening area 231 on the base substrate 21. If the orthographic projection area of ​​the light outlet 2311 on the base substrate 21 is smaller than the orthographic projection area of ​​the opening area 231 on the base substrate 21, then the light emitted from the light-emitting area within the opening area 231 is restricted by the light outlet 231. Therefore, compared with the pixel opening setting of the related art, the scattering range of light can be limited, thereby reducing the light loss caused by the scattering of stray light in multiple directions.

[0084] Figure 8 Shows Figure 3 Schematic diagram of the light path in the opening area 231 of the pixel definition layer 23. Figure 8As shown, based on the opening area 231 and the light outlet 2311, the optical path range of the light emitted from the light emitting area in the opening area 231 can be limited by the angle range between L1 and L2. Since the light emitted from the light emitting area is emitted from the light outlet 2311, the orthographic projection area of ​​the light outlet 2311 on the base substrate 21 is smaller than the orthographic projection area of ​​the opening area 231 on the base substrate 21, so the scattering range of the light emitted from the light emitting area is limited by the light outlet 2311, that is, the scattering range of the light emitted from the light emitting area is narrowed, so that the light energy reaching the next transmission layer (for example, from the organic light emitting functional layer 222 to the color filter layer 24, for example, from the color filter layer 24 to the optical path adjustment layer 25) is increased, and the light loss caused by the scattering of stray light in multiple directions is reduced.

[0085] In some embodiments, the sub-pixel 22 includes a light-emitting device, which includes a first electrode 221, an organic light-emitting functional layer 222 and a second electrode 223 stacked in sequence on the base substrate 21, the pixel defining layer 23 is located on a side of the first electrode 221 away from the base substrate 21, the opening area 231 leaks at least a portion of the first electrode 221, and the light-emitting area of ​​the organic light-emitting functional layer 222 is located in the opening area 231 and in contact with the first electrode 221.

[0086] For example, the first electrode 221 is an anode, the second electrode 223 is a cathode, and each opening area 231 leaks a portion of the anode area of ​​the corresponding light-emitting device close to the side of the base substrate 21. The light-emitting area of ​​the organic light-emitting functional layer 222 is located in the opening area 231 and forms an electrical connection with the anode.

[0087] Each pixel unit may include three sub-pixels 22 , each sub-pixel 22 may be a color sub-pixel 22 or a white sub-pixel 22 , for example, each pixel unit includes one red sub-pixel 22 , one green sub-pixel 22 and one blue sub-pixel 22 , or each pixel unit includes three white sub-pixels 22 .

[0088] For each pixel unit, the light-emitting area of ​​the organic light-emitting functional layer 222 of one sub-pixel 22 may be located within the opening area 231, or the light-emitting areas of the organic light-emitting functional layer 222 of more than one sub-pixel 22 may be located within the opening area 231 (for the sub-pixels 22 not located within the opening area 231, pixel definition may be implemented using other known methods, such as using known pixel openings to implement pixel definition); the light outlet 2311 of the opening area 231 corresponding to the light-emitting area of ​​the organic light-emitting functional layer 222 of one sub-pixel 22 may deviate from the direction perpendicular to the base substrate 21, or the light outlet 2311 of the opening area 231 corresponding to the light-emitting area of ​​the organic light-emitting functional layer 222 of more than one sub-pixel 22 may deviate from the direction perpendicular to the base substrate 21.

[0089] Fig. 9 Another partial cross-sectional schematic diagram of the OLED display panel according to an embodiment of the present application is shown on a plane perpendicular to the base substrate.

[0090] In some embodiments, the orthographic projection of the light outlet 2311 on the base substrate 21 substantially overlaps with the orthographic projection of the light emitting region of the organic light emitting functional layer 222 on the base substrate 21 .

[0091] In some embodiments, the orthographic projection edge of the light outlet on the base substrate overlaps with the orthographic projection edge of the light emitting region of the organic light emitting functional layer on the base substrate; or,

[0092] The orthographic projection edge of the light emitting region of the organic light emitting functional layer on the base substrate exceeds the orthographic projection edge of the light outlet on the base substrate, and the orthographic projection edge of the light emitting region of the organic light emitting functional layer on the base substrate is spaced from the orthographic projection edge of the opening area on the base substrate.

[0093] It can be understood that the organic light-emitting functional layer 222 is usually prepared on the pixel defining layer 23 by using an evaporation process. When the organic light-emitting functional layer 222 is prepared, it enters the opening area 231 from the position of the light outlet 2311 and forms a light-emitting area in the opening area 231. The evaporation process makes the orthographic projection of the light-emitting area formed by the organic light-emitting functional layer 222 on the base substrate 21 and the orthographic projection of the light outlet 2311 on the base substrate 21 basically overlap. Wherein, the basic overlap can be: the orthographic projection edge of the light outlet 2311 on the base substrate 21 overlaps with the orthographic projection edge of the light-emitting area of ​​the organic light-emitting functional layer 222 on the base substrate 21 (such as Figure 3 Alternatively, the orthographic projection edge of the light emitting region of the organic light emitting functional layer 222 on the base substrate 21 exceeds the orthographic projection edge of the light outlet 2311 on the base substrate 21 (as shown in Figure 8As shown). Wherein, when the orthographic projection edge of the light-emitting area of ​​the organic light-emitting functional layer 222 on the substrate 21 exceeds the orthographic projection edge of the light outlet 2311 on the substrate 21, the evaporation process makes the orthographic projection edge of the light-emitting area of ​​the organic light-emitting functional layer 222 on the substrate 21 and the orthographic projection edge of the opening area 231 on the substrate 21 spaced apart from each other. Thus, more light from the light-emitting area corresponding to the position of the light outlet 2311 is further emitted from the light outlet 2311, reducing reflection or refraction in the inner wall of the opening area 2311, thereby further reducing light loss caused by stray light scattering to all around.

[0094] Fig.10 Shows Figure 3 Schematic diagram of the height relationship between the light outlet and the opening area.

[0095] In some embodiments, the lowest point of the light outlet 2311 is one-third to one times the height of the highest point of the opening area 231 perpendicular to the base substrate 21 , and the organic light-emitting functional layer 222 is disconnected at the position of the light outlet 2311 .

[0096] like Fig.10 As shown, the lowest point of the light outlet 2311 refers to the point in the light outlet 2311 that is closest to the substrate 21. Fig.10 The lowest point of the light outlet 2311 at a height perpendicular to the substrate 21 is the vertical distance between the lowest point of the light outlet 2311 and the substrate 21, such as Fig.10 h1 in the figure; the highest point of the opening area 231 refers to the point in the opening area 231 that is farthest from the base substrate 21, such as Fig.10 The height of the highest point of the opening area 231 perpendicular to the base substrate 21 refers to the vertical distance between the highest point of the opening area 231 and the base substrate 21, such as Fig.10 h2 in .

[0097] It can be understood that in order to achieve light-emitting isolation of the organic light-emitting functional layer 222, the lowest point of the light outlet 2311 needs to have a certain step difference. For example, the lowest point of the light outlet 2311 is one-third to one times the height of the highest point of the opening area 231 in a height perpendicular to the base substrate 21, so that the material of the organic light-emitting functional layer 222 can be disconnected at the position of the light outlet 2311 during preparation, thereby achieving light-emitting isolation of the organic light-emitting functional layer 222.

[0098] In some embodiments, the organic light-emitting functional layer 222 includes a plurality of sub-functional layers, and at least one of the sub-functional layers is disconnected at the location of the light outlet.

[0099] It can be understood that the organic light-emitting functional layer 222 includes multiple sub-functional layers. In addition to the light-emitting material layer, the sub-functional layer can also include an auxiliary light-emitting functional layer. The auxiliary light-emitting functional layer can include one or more of a hole injection layer, a hole transport layer, an electron blocking layer, an electron injection layer, an electron transport layer and a hole blocking layer. In addition to the above layers, it can also include other functional film layers, wherein the layers may include organic materials, and may also include inorganic materials such as quantum dots.

[0100] For example, Figure 3 The organic light-emitting functional layer 222 in the embodiment includes a first sub-functional layer 2221 and a second sub-functional layer 2222, wherein the first sub-functional layer 2221 is broken at the light outlet 2311, so that part of the first sub-functional layer 2221 enters the opening area 231 of the pixel defining layer 23 to form a light-emitting area, and part of the first sub-functional layer 2221 is evaporated on the surface of the pixel defining layer 23 or in an area outside the pixel defining layer 23, so as to achieve pixel isolation. Then, even if the entire second sub-functional layer 2222 is evaporated on the pixel defining layer 23, it will not connect the sub-pixels 22, so as to achieve the isolation of the sub-pixels 22.

[0101] Fig.11 Another partial cross-sectional schematic diagram of the OLED display panel 200 according to the embodiment of the present application is shown on a plane perpendicular to the base substrate 21 .

[0102] refer to Fig.11 As shown, the display panel 200 further includes:

[0103] A light-emitting device layer, wherein the light-emitting device layer is disposed on the base substrate 21, the pixel defining layer 23 is disposed on a side of the light-emitting device layer away from the base substrate 21, and the light-emitting device layer includes a plurality of light-emitting devices;

[0104] A color filter layer 24 is located on a side of the light emitting device layer away from the base substrate 21 , and the color filter layer 24 includes a plurality of color filter units 241 ;

[0105] The sub-pixel 22 includes the light-emitting device and the color filter unit 241 . The color filter unit 241 is located in the opening area 231 .

[0106] It can be understood that the light-emitting device may include a first electrode 221, an organic light-emitting functional layer 222 and a second electrode 223 stacked in sequence on the base substrate 21, the pixel defining layer 23 is located on the side of the first electrode 221 away from the base substrate 21, the opening area 231 leaks at least a portion of the first electrode 221, and the light-emitting area of ​​the organic light-emitting functional layer 222 is located in the opening area 231 and in contact with the first electrode 221.

[0107] like Fig.11 As shown, when the above-mentioned light-emitting device layer realizes the pixel isolation of each light-emitting device, reference can be made to the pixel definition layer in the related art, for example Figure 1 The morphology design of the opening area of ​​the pixel definition layer will not be repeated here. Fig.11 The pixel defining layer shown in the figure is used to define the light emitting area of ​​the color filter unit, which is different from the pixel defining layer in the related art.

[0108] For example, each sub-pixel 22 includes a light-emitting device and a color filter unit 241, the color filter unit 241 is located on the side of the light-emitting device away from the base substrate 21, the light (white light or color light) emitted by the light-emitting device is filtered by the color filter unit 241 and then emitted, the color filter unit 241 is located in the opening area 231, and the light-emitting area of ​​the light emitted by the light-emitting device in the color filter layer 24 can be limited. Since the orthographic projection area of ​​the light outlet 2311 on the side of the opening area 231 away from the base substrate 21 on the base substrate 21 is smaller than the orthographic projection area of ​​the opening area 231 on the base substrate 21 area, so the light emitted by the light-emitting device can be limited to the light-emitting area of ​​the light-emitting area of ​​the color film layer 24. In addition, the light-emitting direction of the light-emitting area can be limited by setting the direction of the light outlet 2311, so as to reduce the light loss of stray light while realizing the customization of the light outlet angle; in addition, since the color film unit 241 is located in the opening area 231, the light filtered by the color film unit 241 is emitted from the light outlet 2311, so that the isolation between the various color film units 241 can be achieved, avoiding light leakage at the seams of the various color film units 241, resulting in poor display problems.

[0109] For example, for each pixel unit, the color film unit 241 of one sub-pixel 22 may be located in the opening area 231, or the color film units 241 of more than one sub-pixel 22 may be located in the opening area 231; the light outlet 2311 of the opening area 231 corresponding to the color film unit 241 of one sub-pixel 22 may deviate from the direction perpendicular to the base substrate 21, or the light outlet 2311 of the opening area 231 of the color film unit 241 of more than one sub-pixel 22 may deviate from the direction perpendicular to the base substrate 21.

[0110] Fig.12 Shows Fig.11 Schematic diagram of the light path in the opening area 2311 in FIG. Fig.12As shown, since the light filtered by the color film unit 241 is emitted from the light outlet 2311, on the basis of the opening area 231 and the light outlet 2311, the optical path range of the light filtered by the color film unit located in the opening area 231 can be limited by the angle range between L3 and L4, and the orthographic projection area of ​​the light outlet 2311 on the base substrate 21 is smaller than the orthographic projection area of ​​the opening area 2311 on the base substrate 21. Therefore, the scattering range of the light filtered by the color film unit 241 is limited by the light outlet 2311, that is, the scattering range of the light filtered by the color film unit 241 is narrowed, thereby increasing the light energy reaching the next transmission layer (for example, transmitted from the color film layer 24 to the optical path adjustment layer 25), and reducing the light loss caused by the scattering of stray light in multiple directions.

[0111] Fig.13 Shows Fig.11 Schematic diagram of the height relationship between the color film unit and the opening area.

[0112] In some embodiments, the color film unit 241 is filled in the opening area 231 , and in a direction perpendicular to the base substrate 21 , the height of the highest point of the color film unit 241 is less than or equal to the height of the highest point of the opening area 231 .

[0113] like Fig.12 As shown, the highest point of the color filter unit 241 refers to the point in the color filter unit 241 that is farthest from the base substrate 21. Fig.12 The height of the highest point of the color film unit 241 refers to the vertical distance between the color film unit 241 and the base substrate 21, such as Fig.12 h3 in the figure; the highest point of the opening area 231 refers to the point in the opening area 231 that is farthest from the substrate 21, such as Fig.12 The highest point of the opening area 231 is perpendicular to the height of the base substrate 21 refers to the vertical distance between the highest point of the opening area 231 and the base substrate 21, such as Fig.10 h4 in .

[0114] It can be understood that after the pixel defining layer 23 is formed on the base substrate 21, the pixel defining layer 23 includes a plurality of opening areas 231. When preparing the color film layer 24, the color film material can be filled in each opening area 231 to form each color film unit 241. Therefore, the color film unit 241 can have a shape basically the same as that of the opening area 231. For example, in a direction perpendicular to the base substrate 21, the color film unit 241 is filled to two-thirds to one times the area inside the opening area 231.

[0115] Fig.14 Another partial cross-sectional schematic diagram of the OLED display panel 200 according to the embodiment of the present application is shown on a plane perpendicular to the base substrate 21 .

[0116] In some embodiments, the pixel defining layer 23 includes a first pixel defining layer 232 and a second pixel defining layer 233, the first pixel defining layer 232 includes a plurality of first opening areas 2321, the first opening area 2321 includes a first light outlet 2322 away from a side of the base substrate 21, the orthographic projection area of ​​the first light outlet 2322 on the base substrate 21 is smaller than the orthographic projection area of ​​the first opening area 2321 on the base substrate 21, the second pixel defining layer 233 includes a plurality of second opening areas 2331, the second opening area 2331 includes a second light outlet 2332 away from a side of the base substrate 21, the orthographic projection area of ​​the second light outlet 2332 on the base substrate 21 is smaller than the orthographic projection area of ​​the second opening area 2331 on the base substrate 21;

[0117] The display panel 200 further includes:

[0118] A light emitting device layer, wherein the light emitting device layer is disposed on the base substrate 21, and the light emitting device layer includes a plurality of light emitting devices;

[0119] A color filter layer 24, the color filter layer 24 is located on a side of the light emitting device layer away from the base substrate 21, and the color filter layer 24 includes a plurality of color filter units 241;

[0120] The sub-pixel 22 includes the light-emitting device and the color film unit 241. The light-emitting area of ​​the light-emitting device is located in the first opening area 2321, and the first opening area 2321 is used to limit the light-emitting area of ​​the light-emitting device. The first light exit port 2322 is used to limit the light-emitting area and light-emitting direction of the light-emitting area of ​​the light-emitting device. The color film unit 241 is located in the second opening area 2331, and the second opening area 2331 is used to limit the light-emitting area of ​​the color film unit 241. The second light exit port 2332 is used to limit the light-emitting area and light-emitting direction of the light-emitting area of ​​the color film unit 241.

[0121] For example, the light-emitting device includes an organic light-emitting functional layer 222, and the light-emitting area of ​​the light-emitting device is located in the first opening area 2321, and the light-emitting area of ​​the light-emitting device in the organic light-emitting functional layer 222 can be limited. Since the orthographic projection area of ​​the first light outlet 2322 on the side of the first opening area 2321 away from the substrate 21 is smaller than the orthographic projection area of ​​the first opening area 2321 on the substrate 21, the light-emitting area of ​​the light-emitting area of ​​the organic light-emitting functional layer 222 of the light-emitting device can be limited. In addition, the direction of the first light outlet 2322 can be set to limit the direction of the organic light-emitting functional layer 2 22; similarly, the color film unit 241 is located in the second opening area 2331, which can limit the light emitted by the light-emitting device in the light-emitting area of ​​the color film layer 24. Since the orthographic projection area of ​​the second light outlet 2332 on the side of the second opening area 2331 away from the base substrate 21 is smaller than the orthographic projection area of ​​the second opening area 2331 on the base substrate 21, the light-emitting area of ​​the light-emitting device in the light-emitting area of ​​the color film layer 24 can be limited. In addition, the direction of the second light outlet 2332 can be set to limit the light-emitting direction of the light-emitting device in the light-emitting area of ​​the color film layer 24.

[0122] For example, for each sub-pixel 22, the light-emitting area of ​​the light-emitting device of the sub-pixel 22 may be located in the first opening area 2321, the color film unit 241 of the sub-pixel 22 may be located in the second opening area 2331, or the light-emitting area of ​​the light-emitting device of the sub-pixel 22 may be located in the first opening area 2321 and the color film unit 241 may be located in the second opening area 2331. In addition, the first light outlet 2322 of each first opening area 2321 and the second light outlet 2332 of each second opening area 2331 can be set in the light outlet area and light outlet direction on the opening area 231 according to the angle customization requirements, which will not be repeated here.

[0123] For example, each pixel unit includes a first sub-pixel 22, a second sub-pixel 22 and a third sub-pixel 22, wherein the light-emitting area of ​​the light-emitting device of the first sub-pixel 22 is located in the first opening area 2321, the color film unit 241 of the second sub-pixel 22 is located in the second opening area, the light-emitting area of ​​the light-emitting device of the third sub-pixel 22 is located in the first opening area 2321, and the color film unit 241 is located in the second opening area 2331. Of course, the sub-pixels 22 in each pixel unit can also be flexibly set according to the angle customization requirements, which will not be repeated here.

[0124] Then, through the flexible arrangement of the first opening area 2321, the first light outlet 2322, the second opening area 2331 and the second light outlet 2332, the light emitting areas of each layer through which the light emitted by the light-emitting device passes can be limited respectively, and the light outlet area and the light outlet direction can be limited layer by layer, so that the light outlet angle can be adjusted multiple times, thereby improving the flexibility of the light outlet angle, reducing stray light loss, and reducing light leakage.

[0125] It can be understood that the light emitted from the light-emitting area of ​​the light-emitting device is filtered and emitted through the color filter unit 241, that is, the positions of the light-emitting device and the color filter unit 241 in the direction perpendicular to the base substrate 21 can correspond, then, if the light-emitting area of ​​the light-emitting device of the same sub-pixel 22 is located in the first opening area 2321, and the color filter unit 241 is located in the second opening area 2331, then the orthographic projection of the first opening area 2321 on the base substrate 21 and the orthographic projection of the corresponding second opening area 2331 on the base substrate 21 can overlap with each other. Of course, in some embodiments, the second opening area 2331 and the first opening area 2321 corresponding to the same sub-pixel 22 can also be offset from each other in the direction parallel to the base substrate 21, for example, the second opening area 2331 is located on the left side above the first opening area 2321, so as to meet the needs of some products with a larger light output angle offset.

[0126] See also Figure 3 , Fig.11 or Fig.14 In some embodiments, in a direction perpendicular to the base substrate 21, the cross-sectional shape of the opening area 231 at the position of the light outlet 2311 is an arc-shaped protrusion, and the arc-shaped protrusion is disconnected at the position of the light outlet.

[0127] Correspondingly, the three-dimensional shape of the opening area 231 in a direction perpendicular to the upper direction of the base substrate 21 is an arc-shaped convex three-dimensional structure, such as a hemispherical structure, and a light outlet 2311 is provided on the surface of the hemispherical structure.

[0128] It can be understood that by setting the opening area 231 as an arc-shaped raised three-dimensional structure, the surface of the opening area 231 can be an arc-shaped raised curved surface, which is smoother and more fluent than a flat or uneven surface. Therefore, when setting the position and direction of the light outlet 2311, the light outlet position and direction can be adjusted more accurately.

[0129] In some embodiments, in the direction perpendicular to the base substrate 21, the cross-sectional shape of the opening area 231 at the light outlet 2311 may also be other shapes, such as a straight line shape, a broken line shape, etc., so as to limit the light-emitting area within the opening area 2311, as well as the light-emitting area and light-emitting direction of the light-emitting area.

[0130] In some embodiments, the material of the pixel definition layer 23 is a light shielding material.

[0131] It can be understood that the pixel defining layer 23 can be formed on the base substrate 21 by depositing the pixel defining layer 23 material on the base substrate 21, and forming a plurality of opening areas 231 in the material. That is to say, the opening area 231 is surrounded by the material of the pixel defining layer 23. Then, the light-emitting area within the opening area 231 cannot emit light from the surrounding area of ​​the opening area 231 because the light-shielding material is provided around the opening area 231, thereby allowing more light to be emitted from the light outlet 2311, reducing the loss of stray light and avoiding the problem of light leakage.

[0132] In some embodiments, the display panel 200 further includes:

[0133] The optical path adjustment layer 25 is arranged on a side of the pixel defining layer 23 away from the base substrate 21. The optical path adjustment layer 25 includes a plurality of lens units 251. The lens units 251 may be microprisms. The light of the light emitting area of ​​the sub-pixel 22 is emitted from the light emitting area and the light emitting direction and then passes through the lens units 251.

[0134] The direction of at least one lens unit 251 deviates from a direction perpendicular to the base substrate 21 .

[0135] Then, through the flexible arrangement of the first opening area 2321, the first light outlet 2322, the second opening area 2331, the second light outlet 2332, and the lens unit 251, the light-emitting areas of each layer through which the light emitted by the light-emitting device passes can be limited respectively, and the light-emitting area and the light-emitting direction can be limited layer by layer, so that the light-emitting angle can be adjusted multiple times, thereby improving the flexibility of the light-emitting angle, reducing stray light loss, and reducing light leakage.

[0136] In addition, the display panel 200 of the embodiment of the present application also includes: an encapsulation layer 26 arranged between the second electrode 223 and the color filter layer 24, and a cover plate 27 arranged on the optical path adjustment layer 25. The description of the encapsulation layer 26 and the cover plate 27 can refer to the relevant technology and will not be repeated here.

[0137] Fig.15 A schematic diagram of a display device provided by an embodiment of the present disclosure is shown. Fig.15 As shown, the display device 11 includes the display panel provided by any one of the above embodiments. Therefore, the display device has the technical effect corresponding to the beneficial technical effect of the above display panel.

[0138] For example, the display device can be a display screen, a mobile phone, a laptop computer, a tablet computer, a wearable display device (such as a smart watch, smart glasses, etc.), a television, a digital photo frame, or any other electronic product or component with a display function.

[0139] In the above description, the technical details such as the composition of each layer of the product are not described in detail. However, those skilled in the art should understand that various technical means can be used to form layers, regions, etc. of desired shapes. Although each embodiment is described separately above, it does not mean that the measures in each embodiment cannot be used in combination to advantage.

[0140] In addition, those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present disclosure is limited to these examples. Based on the concept of the present disclosure, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments of the present disclosure as described above, which are not provided in detail for the sake of simplicity.

[0141] Although the preferred embodiments of the present disclosure have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present disclosure.

Claims

1. A display panel, comprising: substrate substrate; A plurality of sub-pixels are disposed on the substrate; A pixel defining layer is arranged on the base substrate, the pixel defining layer includes a plurality of opening areas, the opening areas are used to define the light emitting area of ​​the sub-pixel, the opening areas include a light outlet away from the side of the base substrate, the light outlet is used to define the light outlet area and light outlet direction of the light emitting area, the direction of the light outlet of at least one of the opening areas deviates from the direction perpendicular to the base substrate, and the orthographic projection area of ​​the light outlet on the base substrate is smaller than the orthographic projection area of ​​the opening area on the base substrate.

2. The display panel according to claim 1, wherein: The sub-pixel includes a light-emitting device, and the light-emitting device includes a first electrode, an organic light-emitting functional layer, and a second electrode which are sequentially stacked on the base substrate; The pixel defining layer is located on a side of the first electrode away from the base substrate, the opening area leaks at least a portion of the first electrode, and the light emitting area of ​​the organic light emitting functional layer is located in the opening area and contacts the first electrode.

3. The display panel according to claim 2, wherein: The orthographic projection of the light outlet on the base substrate substantially overlaps with the orthographic projection of the light emitting region of the organic light emitting functional layer on the base substrate.

4. The display panel according to claim 3, wherein: The orthographic projection edge of the light outlet on the base substrate overlaps with the orthographic projection edge of the light emitting region of the organic light emitting functional layer on the base substrate; or, The orthographic projection edge of the light emitting region of the organic light emitting functional layer on the substrate exceeds the orthographic projection edge of the light outlet on the substrate, and the orthographic projection edge of the light emitting region of the organic light emitting functional layer on the substrate is spaced from the orthographic projection edge of the opening area on the substrate.

5. The display panel according to claim 2, wherein: The lowest point of the light outlet has a height perpendicular to the base substrate that is one third to one times the height of the highest point of the opening area, and the organic light-emitting functional layer is disconnected at the position of the light outlet.

6. The display panel according to claim 5, wherein: The organic light-emitting functional layer includes a plurality of sub-functional layers, and at least one of the sub-functional layers is disconnected at the position of the light outlet.

7. The display panel according to claim 1, wherein: Also includes: a light-emitting device layer, wherein the light-emitting device layer is disposed on the base substrate, the pixel defining layer is disposed on a side of the light-emitting device layer away from the base substrate, and the light-emitting device layer includes a plurality of light-emitting devices; A color filter layer, located on a side of the light-emitting device layer away from the base substrate, the color filter layer comprising a plurality of color filter units; The sub-pixel includes the light-emitting device and the color filter unit, and the color filter unit is located in the opening area.

8. The display panel according to claim 7, wherein: The color filter unit is filled in the opening area, and in a direction perpendicular to the base substrate, the height of the highest point of the color filter unit is less than or equal to the height of the highest point of the opening area.

9. The display panel according to claim 1, wherein: The pixel defining layer includes a first pixel defining layer and a second pixel defining layer, the first pixel defining layer includes a plurality of first opening areas, the first opening area includes a first light outlet away from a side of the base substrate, and an orthographic projection area of ​​the first light outlet on the base substrate is smaller than an orthographic projection area of ​​the first opening area on the base substrate, the second pixel defining layer includes a plurality of second opening areas, the second opening area includes a second light outlet away from a side of the base substrate, and an orthographic projection area of ​​the second light outlet on the base substrate is smaller than an orthographic projection area of ​​the second opening area on the base substrate; The display panel further includes: A light emitting device layer, the light emitting device layer is arranged on the base substrate, and the light emitting device layer includes a plurality of light emitting devices; A color filter layer, the color filter layer is located on a side of the light-emitting device layer away from the base substrate, and the color filter layer includes a plurality of color filter units; The sub-pixel includes the light-emitting device and the color film unit, the light-emitting area of ​​the light-emitting device is located in the first opening area, the first opening area is used to define the light-emitting area of ​​the light-emitting device, the first light exit port is used to define the light-emitting area and light-emitting direction of the light-emitting area of ​​the light-emitting device, the color film unit is located in the second opening area, the second opening area is used to define the light-emitting area of ​​the color film unit, and the second light exit port is used to define the light-emitting area and light-emitting direction of the light-emitting area of ​​the color film unit.

10. The display panel according to claim 1, wherein: In a direction perpendicular to the base substrate, a cross-sectional shape of the opening region at the light outlet position is an arc-shaped protrusion, and the arc-shaped protrusion is disconnected at the light outlet position.

11. The display panel according to claim 1, wherein: The material of the pixel definition layer is a light shielding material.

12. The display panel according to claim 1, wherein: Also includes: An optical path adjustment layer is arranged on a side of the pixel definition layer away from the base substrate, the optical path adjustment layer comprises a plurality of lens units, and the light of the light emitting area of ​​the sub-pixel is emitted from the light emitting area and the light emitting direction and then passes through the lens unit; The direction of at least one lens unit deviates from a direction perpendicular to the substrate.

13. A display device, comprising: A display panel as described in any one of claims 1 to 12.

Images