Display panel, display device and vehicle

Abstract

The present application provides a display panel, a display device and a vehicle, wherein the display panel comprises: a substrate; a light-emitting unit, which is arranged on one side of the substrate, and the light-emitting unit emits light toward a side away from the substrate to form a light-emitting area; a shading structure, which is arranged adjacent to the light-emitting unit along a specified direction, and is used to shield the light of the light-emitting area to reduce the light-emitting angle of the light-emitting area along the specified direction; wherein, along the specified direction, when the light-emitting angle is greater than 30°, the brightness of the display panel is less than or equal to 20%. The display panel, the display device and the vehicle provided by the present application have a simple structure and are easy to manufacture. They change the light-emitting angle of the display panel, improve the overall performance of the product, and avoid the reflection of the image of the display panel on the windshield or the windshield, which will not cause visual interference to the driver and improve the safety factor.

Description

Technical Field

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

[0002] OLED (Organic Light-Emitting Diode) display screens have been widely used in the vehicle field due to their excellent display effects. With the rise of new energy vehicles, digital instrument panels, large-screen central control screens and other display screens have been adopted by more models. They can display more information, and large-screen displays can bring better interactive experience. However, when in use, the image on the display screen is easily reflected on the windshield, which will cause visual interference to the driver and bring safety hazards. Summary of the invention

[0003] In view of this, an object of the present application is to provide a display panel, a display device and a vehicle.

[0004] In the first aspect of the present application, a display panel is provided, comprising: a substrate; a light-emitting unit, arranged on one side of the substrate, the light-emitting unit emits light toward a side away from the substrate to form a light-emitting area; a shading structure, arranged adjacent to the light-emitting unit along a specified direction, and used to block the light of the light-emitting area to reduce the light emission angle of the light-emitting area along the specified direction; wherein, along the specified direction, when the light emission angle is greater than 30°, the brightness of the display panel is less than or equal to 20%.

[0005] In some embodiments, the light shading structure includes a light shading first pixel defining layer, which is arranged on a side of the substrate close to the light emitting unit and abuts against the light emitting unit. The thickness of the first pixel defining layer is greater than the thickness of the light emitting unit and is used to block light in the light emitting area.

[0006] In some embodiments, a side of the first pixel defining layer close to the light emitting unit is inclined toward the designated direction, and an angle between the first pixel defining layer and the substrate is 40° to 60°.

[0007] In some embodiments, a light-transmissive second pixel defining layer is disposed on a side of the first pixel defining layer away from the substrate, and the second pixel defining layer is used to balance the thickness of the first pixel defining layer.

[0008] In some embodiments, a third pixel defining layer is provided on a side of the substrate close to the light-emitting unit, and the third pixel defining layer is abutted against the light-emitting unit. The light-shielding structure includes a black matrix layer, and the black matrix layer is located on a side of the third pixel defining layer away from the substrate, for shielding light from the light-emitting area.

[0009] In some embodiments, a color filter layer is provided on the light-emitting side of the light-emitting unit, the color filter layer is abutted against the black matrix layer, a first inorganic film layer is provided on the side of the color filter layer and the black matrix layer close to the substrate, an organic film layer is provided on the side of the color filter layer and the black matrix layer away from the substrate, and a second inorganic film layer is provided on the side of the organic film layer away from the substrate.

[0010] In some embodiments, the light emission angle of the light emitting area along the specified direction is 30° to 50°.

[0011] In some embodiments, the designated direction includes a first designated direction and a second designated direction that are oppositely set, a first shading structure is provided along the first designated direction, and the light emission angle of the light-emitting area along the first designated direction is a first angle; a second shading structure is provided along the second designated direction, and the light emission angle of the light-emitting area along the second designated direction is a second angle, and the first angle and the second angle are not equal.

[0012] A second aspect of the present application provides a display device, comprising the display panel as described in the first aspect above.

[0013] A third aspect of the present application provides a vehicle, comprising a display device as described in the second aspect above, wherein the display device is arranged in a compartment of the vehicle, and the designated direction is a direction toward a windshield of the vehicle or a direction toward a window of the vehicle.

[0014] As can be seen from the above, the present application provides a display panel, a display device and a vehicle, which are provided with a substrate to carry a light-emitting unit and a shading structure; by providing a light-emitting unit, light can be emitted toward a side away from the substrate to form a light-emitting area; by providing a shading structure adjacent to the light-emitting unit, the light in the light-emitting area can be shielded; by providing a shading structure along a specified direction, the light in the light-emitting area along the specified direction can be shielded, so that the light emission angle of the light-emitting area along the specified direction is reduced, thereby avoiding the reflection of light with a larger light emission angle on the glass, thereby avoiding visual interference to the driver and improving the safety factor; it is set that along the specified direction, when the light emission angle is greater than 30°, the brightness of the display panel is less than or equal to 20%, which can ensure that the brightness of the display panel with a large light emission angle is reduced, thereby effectively weakening the reflection of this part of the light on the glass and improving the safety factor; the display panel, the display device and the vehicle have a simple structure and are easy to manufacture, change the light emission angle of the display panel, improve the overall performance of the product, avoid the reflection of the image of the display panel on the windshield, will not cause visual interference to the driver, and improve the safety factor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present application or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a schematic diagram of the reflection of the windshield of a vehicle in the prior art;

[0017] Figure 2 This is a schematic diagram of the structure of the first display panel in the embodiment of the present application;

[0018] Figure 3 This is a schematic diagram of the structure of the second display panel in the embodiment of the present application;

[0019] Figure 4 This is a schematic diagram of the structure of the third display panel in the embodiment of the present application;

[0020] Figure 5 This is a schematic diagram of the structure of a fourth display panel in an embodiment of the present application;

[0021] Figure 6 This is a brightness comparison diagram of a display panel with a shading structure and a display panel without a shading structure in an embodiment of the present application;

[0022] FIG. 7( a ) is a schematic diagram of the arrangement of the first type of light-emitting units on the display panel in an embodiment of the present application;

[0023] FIG. 7( b ) is a schematic diagram of the arrangement of the second type of light-emitting units on the display panel in an embodiment of the present application;

[0024] FIG. 7( c ) is a schematic diagram of the arrangement of the third type of light-emitting units on the display panel in an embodiment of the present application;

[0025] FIG. 7( d ) is a schematic diagram of the arrangement of the fourth type of light-emitting units on the display panel in an embodiment of the present application.

[0026] Figure numerals: 1, substrate; 2, light-emitting unit; 3-1, first pixel defining layer; 3-2, second pixel defining layer; 3-3, black matrix layer; 4, third pixel defining layer; 5, color filter layer; 6, first inorganic film layer; 7, organic film layer; 8, second inorganic film layer; 9, vehicle; 9-1, windshield; 10, display panel. DETAILED DESCRIPTION

[0027] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0028] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0029] OLED (Organic Light-Emitting Diode) display screens have been widely used in the vehicle field due to their excellent display effects. With the rise of new energy vehicles, digital instrument panels, large-screen central control screens and other display screens have been adopted by more models. They can display more information, and large-screen displays can bring better interactive experience. However, when in use, the image on the display screen is easily reflected on the windshield, which will cause visual interference to the driver and bring safety hazards.

[0030] In the process of implementing the present application, it is found that the reason for the reflection problem is that the viewing angle range of the display panel 10 is relatively wide, such as Figure 1 As shown in the figure, direction A is the direction toward the windshield 9-1 of the vehicle 9, and the display panel 10 is installed on the dashboard of the vehicle 9. The light from the display panel 10 with a larger light output angle along direction A will be irradiated onto the windshield 9-1. The light is emitted from the windshield 9-1 into the driver's eyes, so that the image of the display screen is reflected on the windshield 9-1, thereby affecting the driver's line of sight.

[0031] In the related art, a light control film is set on the display panel 10 to change the light output angle of the display panel 10, but the light control film and the display panel 10 are superimposed, and the transmittance is low, which will reduce the final brightness of the screen, especially reduce the light output in the vertical direction of the display panel 10, greatly reducing the screen brightness. At present, the vertical transmittance of the optimal light control film is only about 80%. Assuming that the brightness of an OLED product can reach 1000nit, then after the light control film is affixed, the brightness will drop to 800nit, affecting the product performance and experience; and because the light control film has different degrees of shielding for the pixel units in the display panel 10, it will also produce moiré phenomenon, reducing the display effect; and adding the light control film attachment process to the original process of manufacturing the display panel 10 also increases the production cost and yield risk.

[0032] Below, through specific embodiments and combined Figure 2 to Figure 7(d) To describe the technical solution of this application in detail.

[0033] In some embodiments of the present application, a display panel 10 is provided, such as Figures 2 to 5 As shown, it includes: a substrate 1; a light-emitting unit 2, which is arranged on one side of the substrate 1, and the light-emitting unit 2 emits light toward a side away from the substrate 1 to form a light-emitting area; a shading structure, which is arranged adjacent to the light-emitting unit 2 along a specified direction, and is used to block the light of the light-emitting area to reduce the light emission angle of the light-emitting area along the specified direction; wherein, along the specified direction, when the light emission angle is greater than 30°, the brightness of the display panel 10 is less than or equal to 20%.

[0034] like Figure 2 The display panel 10 shown is a top light structure, and the substrate 1 includes, for example, a planar layer (PLN), a thin film transistor layer (TFT), etc., without specific limitation. The substrate 1 is provided to carry the light-emitting unit 2 and the shading structure to provide power to the light-emitting unit 2.

[0035] The light-emitting unit 2 is used for self-luminescence of the display panel 10. The light-emitting unit 2 includes, for example, a light-emitting layer (EML), a hole injection layer (HIL), a hole transport layer (HTL), an electron hole neutralization layer (EBL), a hole hole neutralization layer (HBL), an electron transport layer (ETL), an electron injection layer (EIL), a charge generation layer (CGL), etc., and is not specifically limited. By setting the light-emitting unit 2, light can be emitted toward a side away from the substrate 1 to form a light-emitting area, such as Figures 2 to 5 As shown, region S is the light emitting region.

[0036] The shading structure is, for example, the third pixel defining layer 4 for shading in the display panel 10, the black matrix layer 3-3, etc., and is not specifically limited. The structure of the display panel 10 itself is used to shade the light-emitting area, avoiding the need to add a light control film to change the light output angle, greatly reducing the production cost, and the process is simple and convenient, and also avoiding the need to increase the light control film attachment process to reduce the yield rate of the display panel 10.

[0037] By setting a shading structure adjacent to the light-emitting unit 2, the light in the light-emitting area can be blocked. The projection of the shading structure is located at the edge of the light-emitting unit along the specified direction 2, and will not block the light in the middle of the light-emitting area, thereby not changing the vertical viewing angle of the display screen, thereby ensuring the display effect.

[0038] like Figure 1 and Figure 2 As shown, direction A is a specified direction, for example, the specified direction is toward the front windshield 9-1 of the vehicle 9, and is not specifically limited and can be adjusted according to the use scenario of the product, such as Figure 2The light output angle along the specified direction is shown as α, and β in the figure is the light output angle of the light-emitting unit along the non-specified direction without the shading structure. By setting the shading structure along the specified direction, the light of the light-emitting area along the specified direction can be blocked, so that the light output angle of the light-emitting area along the specified direction is reduced, even if α is smaller than β, thereby avoiding the light with a larger light output angle from forming a reflection on the glass, thereby avoiding visual interference to the driver and improving the safety factor.

[0039] The light emitting angle can be reduced through the shading structure of the display panel 10 itself, avoiding the moiré phenomenon caused by the interference of light between the light control film and the light emitting unit 2. The manufacturing process is simple, the technology is mature, and the cost is low. While saving consumables and process costs, it also makes up for the problem of insufficient transmittance of the light control film.

[0040] The light emitting angle in the specified direction of the display panel 10 can be changed by adjusting the shading structure in the specified direction, and different light emitting angles can be set for different specified directions of the display panel 10. The product design is more flexible and can meet the user's various viewing angle requirements. For non-specified directions on the display panel 10 that do not require changing the light emitting angle, the shading structure may not be set. For example, the shading structure may not be set in the direction of the light emitting unit 2 toward the driver, so that the driver can see the display panel 10 clearly within a wide viewing angle range, thereby improving the user experience.

[0041] like Figure 6 As shown, it is a brightness comparison diagram of the display panel with and without the shading structure. When the light output angle is 0°, the brightness of the display panel 10 is 100%. When the shading structure is not set, the brightness of the display panel 10 is 70% when the light output angle is 30°, which will produce a reflection phenomenon. By setting the shading structure, the brightness attenuation speed of the display panel 10 along the specified direction can be accelerated to ensure the display effect. In this embodiment, when the light output angle is greater than 30° along the specified direction, the brightness of the display panel 10 is less than or equal to 20%, which can ensure that the brightness of the display panel at a large light output angle is reduced, thereby effectively weakening the reflection of this part of the light on the glass, thereby avoiding visual interference to the driver and improving the safety factor.

[0042] The display panel 10 has a simple structure and is easy to manufacture. It changes the light emission angle of the display panel 10, improves the overall performance of the product, avoids the image of the display panel 10 being reflected on the windshield, does not cause visual interference to the driver, and improves the safety factor.

[0043] In some embodiments, Figure 2As shown, the shading structure includes a shading first pixel defining layer 3-1. The first pixel defining layer 3-1 is arranged on a side of the substrate 1 close to the light-emitting unit 2 and abuts against the light-emitting unit 2. The thickness of the first pixel defining layer 3-1 is greater than the thickness of the light-emitting unit 2 and is used to block the light in the light-emitting area.

[0044] The pixel defining layer is used to separate the light-emitting unit 2 so that the display panel 10 can achieve high resolution. Usually, the pixel defining layer is light-transmissive, and the material can be either an organic material or an inorganic material. Preferably, the pixel defining layer material can be one or more of silicon oxide, silicon nitride, aluminum oxide, aluminum nitride, resin, polymer, etc.; materials such as graphite can be added to the composition of the pixel defining layer so that the pixel defining layer can achieve a light-shielding effect.

[0045] A shading first pixel defining layer 3-1 is provided to block the light in the luminous area; the first pixel defining layer 3-1 is provided on the substrate 1 to offset the luminous unit 2, and the thickness of the first pixel defining layer 3-1 is greater than the thickness of the luminous unit 2, which can limit the luminous unit 2 from emitting light in the direction of the first pixel defining layer 3-1, so that the luminous area is more converged and the light output angle is reduced.

[0046] The first pixel defining layer 3-1 can be formed on the substrate 1 by a graphic process, which is mature and convenient. The light shielding ability of the first pixel defining layer 3-1 can be changed by adjusting the thickness of the first pixel defining layer 3-1. The greater the thickness, the stronger the light shielding ability, and the smaller the light output angle of the corresponding light-emitting unit 2.

[0047] In some embodiments, Figure 2 As shown, the first pixel defining layer 3 - 1 is inclined toward the specified direction on one side close to the light emitting unit 2 , and the angle between the first pixel defining layer 3 - 1 and the substrate 1 is 40° to 60°.

[0048] like Figure 2 As shown, γ is the angle between the side of the first pixel defining layer 3-1 close to the light-emitting unit 2 and the substrate 1, that is, the slope angle of the first pixel defining layer 3-1. The shading ability of the first pixel defining layer 3-1 can be changed by adjusting the angle of γ. The larger the angle, the stronger the shading ability, and the smaller the light output angle of the corresponding light-emitting unit 2.

[0049] When the angle between the side of the first pixel defining layer 3-1 close to the light-emitting unit 2 and the substrate 1 is set to γ, it can ensure that the light emission of the adjacent light-emitting unit 2 within an angle less than 90°-γ is not affected, while the light emission at an angle greater than 90°-γ is blocked. For example, if γ is set to 50°, the light of the light-emitting unit with an angle below 40° is not affected, and setting γ to 40° to 60° can maintain the light emission angle at 30° to 50°, and will not affect the light emission in the direction perpendicular to the display panel 10, thereby obtaining a better light emission effect, avoiding a light emission angle that is too large, causing the light of the display panel 10 to be reflected on the glass and interfere with the line of sight, and avoiding a light emission angle that is too small, resulting in the driver being able to see the display panel 10 only within a smaller viewing angle range, thereby reducing the user experience.

[0050] In some embodiments, Figure 3 As shown, a light-transmissive second pixel defining layer 3-2 is provided on the side of the first pixel defining layer 3-1 away from the substrate 1, and the second pixel defining layer 3-2 is used to balance the thickness of the first pixel defining layer 3-1.

[0051] like Figure 3 As shown, A1 is the first designated direction, and A2 is the second designated direction. Different first pixel defining layers 3-1 can be set for different designated directions to meet the user's needs for different light emission angles. As shown in the figure, the thickness of the first pixel defining layer 3-1 in the A1 direction is greater than the thickness of the first pixel defining layer 3-1 in the A2 direction, so that the light emission angle α1 in the A1 direction is smaller than the light emission angle α2 in the A2 direction.

[0052] The first pixel defining layers 3-1 of different thicknesses may affect the flatness of the display panel 10. By setting a transparent second pixel defining layer 3-2, the light output angle formed after setting the first pixel defining layer 3-1 will not be changed, and the thicknesses of different first pixel defining layers 3-1 can be balanced, so that the thicknesses of different first pixel defining layers 3-1 plus the second pixel defining layer 3-2 on the substrate 1 can be kept consistent, thereby ensuring the flatness of the display panel 10.

[0053] In some embodiments, Figure 4 and Figure 5 As shown, a third pixel defining layer 4 is provided on the side of the substrate 1 close to the light-emitting unit 2, and the third pixel defining layer 4 is in contact with the light-emitting unit 2. The light-shielding structure includes a black matrix layer 3-3. The black matrix layer 3-3 is located on the side of the third pixel defining layer 4 away from the substrate 1, and is used to block the light in the light-emitting area.

[0054] The black matrix layer 3-3 further plays the role of separating pixels. By arranging the black matrix layer 3-3 on the side of the third pixel defining layer 4 away from the substrate 1, the light in the light-emitting area can be blocked, so that the light output angle of the light-emitting area along the specified direction can be reduced; the projection of the black matrix layer 3-3 is located at the edge of the light-emitting unit 2, which will not block the light in the middle of the light-emitting area, and thus will not change the vertical viewing angle of the display screen, thereby ensuring the display effect.

[0055] like Figure 4 As shown, A1 is the first designated direction, A2 is the second designated direction, and different black matrix layers 3-3 can be set for different designated directions. By adjusting the first spacing between the black matrix layer 3-3 and the central axis of the light-emitting unit 2, the shading ability of the black matrix layer 3-3 can be changed. The smaller the spacing, the stronger the shading ability, and the smaller the light output angle of the corresponding light-emitting unit 2; as shown in the figure, the first spacing of the black matrix layer 3-3 in the A1 direction is smaller than the first spacing of the black matrix layer 3-3 in the A2 direction, so that the light output angle α1 in the A1 direction is smaller than the light output angle α2 in the A2 direction.

[0056] Along a specified direction, such as the direction toward the windshield 9-1, the second spacing length of two adjacent black matrix layers 3-3 can be less than or equal to the length of the light-emitting unit 2, so as to block the light in the light-emitting area and accelerate the attenuation of the light output angle. The second spacing length can be 0.5 to 1 times the length of the light-emitting unit 2; along a non-specified direction, such as the direction toward the driver, the second spacing length of two adjacent black matrix layers 3-3 can be greater than the length of the light-emitting unit 2, so as to avoid blocking the light in the light-emitting area and ensure the light output angle. The second spacing length can be 1 to 1.5 times the length of the light-emitting unit 2.

[0057] like Figure 5 As shown, A1 is the first designated direction, A2 is the second designated direction, and different black matrix layers 3-3 can be set for different designated directions. By adjusting the thickness of the black matrix layer 3-3, the light shielding ability of the black matrix layer 3-3 can be changed. The larger the thickness, the stronger the light shielding ability, and the smaller the light output angle of the corresponding light-emitting unit 2; as shown in the figure, the thickness of the black matrix layer 3-3 in the A1 direction is smaller than the thickness of the black matrix layer 3-3 in the A2 direction, so that the light output angle α1 in the A1 direction is smaller than the light output angle α2 in the A2 direction.

[0058] In some embodiments, Figure 4 and Figure 5As shown, a color filter layer 5 is provided on the light-emitting side of the light-emitting unit 2, and the color filter layer 5 is in contact with the black matrix layer 3-3. A first inorganic film layer 6 is provided on the side of the color filter layer 5 and the black matrix layer 3-3 close to the substrate 1, and an organic film layer 7 is provided on the side of the color filter layer 5 and the black matrix layer 3-3 away from the substrate 1, and a second inorganic film layer 8 is provided on the side of the organic film layer 7 away from the substrate 1.

[0059] A color filter layer 5 is provided to filter the light emitted by the light-emitting unit 2 into monochromatic light, which can replace the polarizer to increase the transmittance; the color filter layer 5 may include a first filter, a second filter and a third filter, which are respectively one of the three primary color filters to realize red light emission, green light emission and blue light emission. For example, the first filter is CF-R, the second filter is CF-G and the third filter is CF-B. Different colors can be mixed by three monochromatic lights to realize full color gamut display.

[0060] The first inorganic film layer 6 (CVD1) and the second inorganic film layer 8 (CVD2) are used to block air, moisture, etc., the organic film layer 7 (IJP) is used to form flexibility, and the three film layers together form an encapsulation layer (TFE) to protect the display panel 10.

[0061] Usually, the color filter layer 5 and the black matrix layer 3-3 are arranged on the outside of the encapsulation layer, that is, on the second inorganic film layer 8. In this embodiment, the color filter layer 5 and the black matrix layer 3-3 are arranged between the first inorganic film layer 6 and the organic film layer 7, which are closer to the light-emitting unit 2. By fine-tuning the first spacing of the black matrix layer 3-3, a large change in the light output angle can be achieved. To avoid the black matrix layer 3-3 being arranged on the second inorganic film layer 8, for non-specified directions of the display panel 10, the first spacing of the black matrix layer 3-3 needs to be set very large so as not to affect the light output angle.

[0062] In some embodiments, the light emission angle of the light emitting area along the specified direction is 30° to 50°.

[0063] By adjusting the light emitting angle to 30° to 50°, for example, 35°, a better display effect can be obtained, and the light emitting angle is prevented from being too large, so that the light of the display panel 10 is reflected on the glass and interferes with the sight, and the light emitting angle is prevented from being too small, so that the driver can only see the display panel 10 in a smaller viewing angle range, thereby reducing the user experience; Figure 6 As shown, setting a shading structure can speed up the brightness attenuation rate of the display panel 10 along a specified direction, thereby ensuring the display effect.

[0064] In some embodiments, Figure 3 , Figure 4 and Figure 5As shown, the designated direction includes a first designated direction and a second designated direction which are oppositely arranged. A first shading structure is arranged along the first designated direction, and the light emission angle of the light-emitting area along the first designated direction is a first angle. A second shading structure is arranged along the second designated direction, and the light emission angle of the light-emitting area along the second designated direction is a second angle. The first angle and the second angle are not equal.

[0065] like Figure 3 , Figure 4 and Figure 5 As shown, A1 is the first designated direction, and A2 is the second designated direction. By setting different shading structures, the display panel 10 can present different light emitting angles along different designated directions to meet the needs of users in multi-functional scenarios. For example, in order to avoid the reflection of the display panel 10 at the window position of the co-pilot of the vehicle 9, which affects the driver's view of the rearview mirror at this position, the display panel 10 can be set to have a smaller light emitting angle toward the co-pilot direction to avoid the influence of the window reflection; and a larger light emitting angle toward the main driving direction to ensure that the driver can see the display panel 10 clearly.

[0066] In some embodiments, Figures 7(a) to 7(d) As shown in FIG. 7 , it is a schematic diagram of the arrangement of different light-emitting units 2 on the display panel 10, in which R represents a red light-emitting unit, G represents a green light-emitting unit, and B represents a blue light-emitting unit. Different arrangements and shapes and sizes may be used for different application scenarios. For example, the three light-emitting units 2 shown in FIG. 7 (a) and FIG. 7 (d) have the same shape and size and are arranged in an array; the three light-emitting units 2 shown in FIG. 7 (b) have the same shape but different sizes and are arranged in a staggered manner; the green light-emitting unit and the red light-emitting unit have different sizes, and the red light-emitting unit and the blue light-emitting unit have different shapes as shown in FIG. 7 (c); the light-emitting units 2 with different arrangements may all adopt the shading structure setting method of this embodiment to change the light output angle in a specified direction.

[0067] When designing the display panel 10 to avoid reflected imaging on the windshield 9-1, the arrangement of the three light-emitting units 2 shown in Figure 7(d) can be adopted. The cross-sectional shapes of the three light-emitting units 2 are rectangles of the same size, and the designated direction is the direction toward the windshield 9-1. The shading structure is a black matrix layer 3-3, and the short side direction of the rectangle is set parallel to the designated direction. In this way, by fine-tuning the first spacing of the black matrix layer 3-3 in the short side direction, the light output angle can be greatly changed. Compared with setting the long side direction of the rectangle parallel to the designated direction, it is more efficient to adjust the first spacing of the black matrix layer 3-3 in the long side direction of the rectangle.

[0068] Some embodiments of the present application provide a display device, including the display panel 10 as described in any of the above embodiments.

[0069] The effect produced by the display device is the same as that produced by the above-mentioned display panel 10 , and will not be described in detail here.

[0070] In some embodiments of the present application, a vehicle 9 is provided, comprising a display device as described in the second aspect above, wherein the display device is arranged in the cabin of the vehicle 9, and the designated direction is the direction toward the windshield 9-1 of the vehicle 9 or the direction toward the window of the vehicle 9.

[0071] like Figure 1 As shown, direction A of the windshield 9-1 facing the vehicle 9 is the designated direction, and a shading structure is provided along direction A to block the light of the luminous area along direction A, thereby reducing the light output angle of the luminous area along direction A, thereby avoiding light with a larger light output angle from forming a reflection on the windshield 9-1, thereby avoiding visual interference to the driver and improving the safety factor.

[0072] The designated direction may also be the direction of a window of the vehicle 9, such as the direction toward the passenger window, to prevent the image of the display panel 10 from being reflected on the corresponding window when the driver looks at the passenger's rearview mirror.

[0073] 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 application (including the claims) is limited to these examples. In line with the concept of the present application, 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 the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0074] In the embodiments of the present application, "film" and "layer" can be interchanged. For example, sometimes "conductive layer" can be replaced by "conductive film". Similarly, sometimes "insulating film" can be replaced by "insulating layer". The proportions of the drawings in the embodiments of the present application can be used as a reference in the actual process, but are not limited to this. For example: the width-to-length ratio of the channel, the thickness and spacing of each film layer can be adjusted according to actual needs. The number of pixels in the display panel 10 and the number of sub-pixels in each pixel are not limited to the numbers shown in the figure. The drawings described in the embodiments of the present application are only structural schematic diagrams. A method in the embodiments of the present application is not limited to the shapes or values ​​shown in the drawings.

[0075] The triangle, rectangle, trapezoid, pentagon or hexagon in the embodiment of the present application is not in the strict sense, and may be an approximate triangle, rectangle, trapezoid, pentagon or hexagon, etc. There may be some small deformations caused by tolerance, and there may be chamfers, arc edges and deformations.

[0076] In addition, when details are set forth to describe exemplary embodiments of the present application, it is obvious to those skilled in the art that the present application embodiments can be implemented without these details or with changes in these details. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0077] The manufacturing process of the display panel 10 includes forming a third pixel defining layer 4 on the substrate 1 through a graphic process, forming a light-emitting unit 2, a first inorganic film layer 6, an organic film layer 7 and a second inorganic film layer 8 through evaporation, attaching a black matrix layer 3-3 and a color filter layer 5, etc., without specific limitation.

[0078] The "patterning process" mentioned in the embodiments of the present application includes processes such as coating photoresist, mask exposure, development, etching, and stripping photoresist for metal materials, inorganic materials, or transparent conductive materials, and includes processes such as coating organic materials, mask exposure, and development for organic materials. Deposition can be any one or more of sputtering, evaporation, and chemical vapor deposition, coating can be any one or more of spraying, spin coating, and inkjet printing, and etching can be any one or more of dry etching and wet etching, without limitation.

[0079] 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 application (including the claims) is limited to these examples. In line with the concept of the present application, 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 the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0080] In addition, to simplify the description and discussion, and in order not to make the embodiment of the present application difficult to understand, the known power supply / ground connection with other components may or may not be shown in the provided drawings. In addition, the device can be shown in the form of a block diagram to avoid making the embodiment of the present application difficult to understand, and this also takes into account the following fact, that is, the details of the implementation method of these block diagram devices are highly dependent on the platform to be implemented in the embodiment of the present application (that is, these details should be completely within the scope of understanding of those skilled in the art). In the case of elaborating specific details to describe the exemplary embodiments of the present application, it is obvious to those skilled in the art that the embodiment of the present application can be implemented without these specific details or when these specific details are changed. Therefore, these descriptions should be considered to be illustrative rather than restrictive.

[0081] Although the present application has been described in conjunction with the specific embodiments of the present application, many replacements, modifications and variations of these embodiments will be apparent to those of ordinary skill in the art based on the foregoing description. The present application embodiments are intended to encompass all such replacements, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application embodiments should be included in the protection scope of the present application.

Claims

1. A display panel, characterized in that: include: substrate; A light-emitting unit is disposed on one side of the substrate, and the light-emitting unit emits light toward a side away from the substrate to form a light-emitting area; A shading structure, arranged adjacent to the light-emitting unit along a specified direction, for shielding the light of the light-emitting area to reduce the light emission angle of the light-emitting area along the specified direction; Wherein, along the specified direction, when the light output angle is greater than 30°, the brightness of the display panel is less than or equal to 20%; the shading structure includes a shading first pixel defining layer, the first pixel defining layer is arranged on a side of the substrate close to the light-emitting unit and abuts against the light-emitting unit, the thickness of the first pixel defining layer is greater than the thickness of the light-emitting unit, and is used to block the light of the light-emitting area; a translucent second pixel defining layer is provided on the side of the first pixel defining layer away from the substrate, and the second pixel defining layer is used to balance the thickness of the first pixel defining layer.

2. The display panel according to claim 1, characterized in that: A side of the first pixel defining layer close to the light emitting unit is inclined toward the designated direction, and an angle between the first pixel defining layer and the substrate is 40° to 60°.

3. The display panel according to claim 1, characterized in that: A third pixel defining layer is provided on a side of the substrate close to the light-emitting unit, and the third pixel defining layer abuts against the light-emitting unit. The light-shielding structure includes a black matrix layer, and the black matrix layer is located on a side of the third pixel defining layer away from the substrate, for shielding light from the light-emitting area.

4. The display panel according to claim 3, characterized in that: A color filter layer is provided on the light-emitting side of the light-emitting unit, the color filter layer is in contact with the black matrix layer, a first inorganic film layer is provided on the side of the color filter layer and the black matrix layer close to the substrate, an organic film layer is provided on the side of the color filter layer and the black matrix layer away from the substrate, and a second inorganic film layer is provided on the side of the organic film layer away from the substrate.

5. The display panel according to claim 1, characterized in that: The light emission angle of the light emitting area along the specified direction is 30° to 50°.

6. The display panel according to claim 1, characterized in that: The designated direction includes a first designated direction and a second designated direction which are oppositely arranged. A first shading structure is arranged along the first designated direction, and the light emission angle of the light-emitting area along the first designated direction is a first angle. A second shading structure is arranged along the second designated direction, and the light emission angle of the light-emitting area along the second designated direction is a second angle. The first angle and the second angle are not equal.

7. A display device, characterized in that: Comprising a display panel as described in any one of claims 1-6.

8. A vehicle, characterized in that: It includes the display device according to claim 7, wherein the display device is arranged in the vehicle compartment, and the designated direction is the direction toward the windshield of the vehicle or the direction toward the window of the vehicle.

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