Display panel and display device

Abstract

The present invention provides a display panel and a display device. The display panel includes at least two display areas, and a splicing area is included between the display areas; the display area further includes a first substrate, a display functional layer, a second material layer, and a first material layer arranged in sequence; the first material layer is located on a side of the second material layer away from the display functional layer, and both the first material layer and the second material layer extend from the display area to the splicing area; wherein, the refractive index of the first material layer is less than that of the second material layer. The display panel of the present application can better improve the display brightness of the splicing area and reduce or avoid the possibility of a shadow appearing in the splicing area of the display panel.

Description

Technical Field

[0001] The present invention relates to the field of displays, and particularly to a display panel and a display device. Background Art

[0002] At present, there are display technologies such as LCD (Liquid Crystal Display), mini LED (light-emitting diode), and OLED (Organic Light-Emitting Diode) in the display field. The contrast of Mini LED LCD is much better than that of normal LCD, and its lifespan and price are also better than those of OLED. Therefore, the market demand for Mini LED LCD is increasing.

[0003] Because the manufacturing process level requirements for Mini LED are relatively high, it is difficult to fabricate tens of thousands of Mini LEDs on a single display panel. They can only be spliced together by means of splicing. However, the splicing areas cannot completely overlap, and there will be splicing seams. The light in the splicing seams is weaker than that in other positions, forming an obvious bright-dark contrast and generating black shadows. Summary of the Invention

[0004] To solve the above technical problems, in a first aspect, the present application provides a display panel:

[0005] The display panel includes at least two display areas, and a splicing area is included between the display areas; the display area further includes a first substrate, a display functional layer, a second material layer, and a first material layer arranged in sequence; the first material layer is located on a side of the second material layer away from the display functional layer, and both the first material layer and the second material layer extend from the display area to the splicing area; wherein, the refractive index of the first material layer is less than that of the second material layer.

[0006] In the present application, both the first material layer and the second material layer extend from the display area to the splicing area, and the refractive index of the first material layer is less than that of the second material layer. In this way, when part of the ambient light enters the display panel, total internal reflection will occur in the second material layer. The total internally reflected light finally shoots from the display area to the splicing area and exits at the splicing area. That is to say, the display panel provided by the present application can utilize ambient light to compensate for the light in the splicing area, and there is no need to set light-emitting units in the splicing area, which can reduce or avoid the appearance of dark shadows in the splicing area while reducing costs.

[0007] In a second aspect, the present application provides a display device including the display panel in the first aspect. Description of the Drawings

[0008] Figure 1 Schematic diagram of the structure of a display panel provided in the related art;

[0009] Figure 2 Schematic diagram of the structure of a display panel provided in an embodiment of the present application;

[0010] Figure 3 For Figure 2 Cross-sectional view of the display panel in the shown embodiment along the A-A' direction;

[0011] Figure 4 Schematic diagram of the structure of a display panel provided in an embodiment of the present application;

[0012] Figure 5 Schematic diagram of the structure of a display panel provided in another embodiment of the application;

[0013] Figure 6 Schematic diagram of the structure of a display panel provided in another embodiment of the present application;

[0014] Figure 7 Schematic diagram of the structure of a display panel provided in another embodiment of the present application;

[0015] Figure 8 Schematic diagram of the structure of a display panel provided in another embodiment of the present application;

[0016] Figure 9 Schematic diagram of the structure of a display panel provided in another embodiment of the present application;

[0017] Figure 10 Schematic diagram of the structure of a display panel provided in another embodiment of the present application;

[0018] Figure 11 Schematic diagram of the structure of a display panel provided in another embodiment of the present application; Detailed implementation manners

[0019] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described below in conjunction with the drawings and embodiments.

[0020] It should be noted that specific details are set forth in the following description to facilitate a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific implementation manners disclosed below.

[0021] The terms used in the embodiments of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The singular forms "a", "the", and "said" used in the embodiments of the present invention and the appended claims are also intended to include the plural forms unless the context clearly dictates otherwise.

[0022] It should be noted that the orientation terms such as "upper", "lower", "left", and "right" described in the embodiments of the present invention are described from the angles shown in the drawings and should not be construed as limiting the embodiments of the present invention. In addition, in the context, it should also be understood that when it is mentioned that an element is formed "on" or "under" another element, it can not only be directly formed "on" or "under" another element, but also be indirectly formed "on" or "under" another element through an intermediate element.

[0023] To make the above objects, features, and advantages of the present invention more apparent and understandable, the present invention will be further described below in conjunction with the drawings and embodiments. However, the exemplary embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; on the contrary, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings represent the same or similar structures, and thus their repeated description will be omitted. The words expressing positions and directions described in the present invention are all illustrated by taking the drawings as examples, but can be changed according to needs, and all the changes made are included in the protection scope of the present invention. The drawings of the present invention are only used to illustrate the relative positional relationship, and the layer thickness of some parts is drawn in an exaggerated way for easy understanding. The layer thickness in the drawings does not represent the proportional relationship of the actual layer thickness. And without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The drawings of the embodiments in this application use the same reference numerals of the drawings. For convenience of description, some structures in the drawings are schematically shown in a perspective manner. In addition, the same parts of each embodiment will not be described in detail again.

[0024] See Figure 1 , which is a schematic structural diagram of a display panel provided in the related art.

[0025] As Figure 1 shown, the display panel 100' includes a plurality of display areas, such as a first display area 102', a second display area 104', a third display area 106', and a fourth display area 108'. A splicing area 110' is included between the respective display areas.

[0026] The display panel 100' in this application may include being spliced by a plurality of sub-display panels. Exemplarily, the first display area 102', the second display area 104', the third display area 106', and the fourth display area 108' may respectively correspond to a sub-display panel.

[0027] The spliced display panel can have a larger display area, but the splicing area generally cannot be fully fitted and there are no pixels. Thus, when the display panel is in the light-emitting state, the display area is in a bright state while the splicing area is in a dark state. That is to say, when the display panel is in the light-emitting state, a shadow will appear in the splicing area, which will affect the display effect.

[0028] To solve the above technical problems, the present application provides a new display panel. The following refers to the attached Figure 2 - 11 to explain and illustrate the structure of the display panel shown in the present application.

[0029] Figure 2 is a schematic structural diagram of a display panel 100 provided in an embodiment of the present application. Figure 3 is Figure 2 a cross-sectional view of the shown display panel 100 along the A-A' direction.

[0030] As Figure 2 and Figure 3 shown, the display panel 100 includes two or more display areas. Exemplarily, the display area may include a first display area 102, a second display area 104, a third display area 106, and a fourth display area 108.

[0031] Furthermore, a splicing area 110 may be provided between the display areas. That is to say, the display panel 100 in the present application includes a spliced display panel. Further, the first display area 102, the second display area 104, the third display area 106, and the fourth display area 108 may each correspond to a sub-display panel, and the respective sub-display panels are spliced with each other to form the display panel 100.

[0032] Referring to Figure 3 , the first display area 102 and the second display area 104 may each include a first substrate 112, a display functional layer 114, a second material layer 116, and a first material layer 118 arranged in sequence.

[0033] In an example of the present application, the first substrate 112 may be formed of a polymer material such as glass, polyimide (PI), polycarbonate (PC), polyethersulfone (PES), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyaryl compound (PAR), or glass fiber reinforced plastic (FRP).

[0034] Optionally, the first substrate 112 may be transparent, translucent, or opaque. A thin film transistor layer may be provided on the first substrate 112 for driving a light-emitting element to emit light.

[0035] The display function layer 114 is used to enable the display panel 100 to achieve display. Optionally, when the display panel 100 includes a self-emitting display panel such as an organic light-emitting display panel, Mini LED, or Micro LED, the display function layer 114 may include a light-emitting unit layer.

[0036] Specifically, as Figure 3 shown, the light-emitting unit layer may include a red light-emitting unit 1148, a green light-emitting unit 1146, a blue light-emitting unit 1142, etc. It can be understood that the three primary color lights emitted by the red, green, and blue light-emitting units can be mixed with each other, enabling the display panel 100 to display a variety of colors.

[0037] Continuing to refer to Figure 3 , the first material layer 118 is located on the side of the second material layer 116 away from the display function layer 114. At the same time, both the first material layer 118 and the second material layer 116 extend from the first display area 102 (and the second display area 104) to the splicing area 110, where the refractive index n1 of the first material layer 118 is less than the refractive index n2 of the second material layer 116.

[0038] In this application, by making the refractive index n1 of the first material layer 118 less than the refractive index n2 of the second material layer 116, when part of the ambient light enters the display panel, total internal reflection of the ambient light can occur within the second material layer 116, and the total internally reflected light is reflected from the display area 102 to the splicing area 110, thereby using the ambient light to increase the light brightness of the splicing area.

[0039] Next, refer to Figure 4 for a further explanation and illustration of this principle. When light travels from an optically denser medium to an optically less dense medium, when the incident angle exceeds a certain angle (the critical angle), the refracted light completely disappears, and only the reflected light remains. This phenomenon is called total internal reflection. In this application, the second material layer 116 is equivalent to the optically denser medium, and the first material layer 118 is equivalent to the optically less dense medium, where the critical angle θc = arcsin(n1 / n2).

[0040] That is to say, when the ambient light irradiates and enters the second material layer 116 from the first material layer 118, since the refractive index n1 of the first material layer 118 is less than the refractive index n2 of the second material layer 116, when the angle θ between part of the ambient light in the second material layer 116 and the normal line is greater than the critical angle θc (θc = arcsin(n1 / n2)), total internal reflection will occur. The total internally reflected light is emitted from the display area 102 to the splicing area 110, thereby increasing the display brightness of the splicing area. In this way, when the display panel is in the light-emitting state, the possibility of a shadow appearing in the splicing area can be reduced or even avoided.

[0041] Optionally, the material of the first material layer 118 may include a polymer-coated composite material, polyethylene terephthalate (PET), optical adhesive (OCA), a metal material, or glass with a special structure (such as inorganic non-metallic materials, etc.). The material of the second material layer 116 may include a coating of a polymer material, a composite material, a metal, or the like. The specific materials of the first material layer 118 and the second material layer 116 are not particularly limited in this application. As long as the display of the display panel is ensured, those skilled in the art can select the specific materials of the first material layer 118 and the second material layer 114 according to needs, as long as the refractive index n1 of the first material layer 118 is less than the refractive index n2 of the second material layer 116.

[0042] To further improve the brightness of the splicing area 110, the present application can adjust the structure of the second material layer 116 on the side close to the splicing area. As Figure 5 shown, Figure 5 is a schematic structural diagram of a display panel provided in an embodiment of the application.

[0043] See Figure 5 , the side edge of the second material layer 116 on the side close to the splicing area 110 includes a plurality of serrated portions 120. The serrated portions 120 are used to adjust the light-emitting angle of the total reflection light, so that the total reflection light of the ambient light is emitted toward the display side as much as possible, thereby further improving the shadow problem that appears in the splicing area 110.

[0044] The applicant also found that although setting the refractive index n1 of the first material layer 118 to be less than the refractive index n2 of the second material layer 116 can improve the problem of the splicing area, some normal display light emitted by the light-emitting unit of the display panel 100 will also be affected by the first material layer 118 and the second material layer 114. Specifically, since the refractive index n1 of the first material layer 118 is less than the refractive index n2 of the second material layer 116, when the display light passes through the first material layer 118 and the second material layer 116, a large-angle shift will occur, resulting in color deviation of the display panel and affecting the display effect.

[0045] As Figure 6 shown, is a schematic structural diagram of a display panel provided in an embodiment of the application. To solve the problem of large-angle shift when the display light passes through the first material layer 118 and the second material layer 116, the display panel 100 is further provided with a light condensing layer 124 for condensing the display light to change the light-emitting angle of the display light.

[0046] As Figure 6As shown, the display panel further includes a second substrate 122, which is located between the display functional layer 114 and the second material layer 116. A light condensing layer 124 is disposed between the second substrate 122 and the second material layer 116. The second substrate is used to support the light condensing layer 124 to ensure that the formed light condensing layer is relatively uniform, thereby improving the display uniformity of the display panel.

[0047] Optionally, the light condensing layer 124 may include convex lenses. Exemplarily, the light condensing layer may be provided to include a plurality of protrusions, and the protrusions can be regarded as convex lenses. While having a light condensing effect, the convex lenses have a simple manufacturing process and reduce costs.

[0048] Further, since the light condensing layer 124 includes protrusions, when the second material layer 116 is deposited on the light condensing layer 124, an air layer 180 will be formed between the protrusions. It can be understood that the air layer 180 is an air gap between the light condensing layer 124 and the second material layer 116.

[0049] In the present application, the refractive index of the second material layer 116 is greater than that of the air layer 180. Based on the above total reflection principle, it can better ensure that ambient light undergoes total reflection in the second material layer 116 to increase the brightness of the splicing area 110.

[0050] Further, due to reasons such as the deposition process, it may be impossible to form an air layer 180 between the light condensing layer 124 and the second material layer 116, or the surface area of the formed air layer 180 is small, and part of the ambient light entering the second material layer 116 cannot undergo total reflection. Based on this, the present application may also provide a third material layer between the light condensing layer 124 and the second material layer 116, and the refractive index of the third material layer is less than that of the second material layer 116, so as to ensure as much as possible that more ambient light in the second material layer 116 can undergo total reflection, thereby increasing the brightness of the splicing area 110.

[0051] Further, continue to refer to Figure 6 , in a plane perpendicular to the plane of the display panel, the convex lens may at least partially overlap with the sub-light emitting unit (such as the red light emitting unit 1148), that is, the convex lens and the sub-light emitting unit at least partially overlap in the positive projection on the second material layer 116. In this way, the light output angle of the display light can be better adjusted to ensure the light output effect of the display light of the display panel.

[0052] In another embodiment of the present application, the existing film layer of the display panel can be reused as the above-mentioned light condensing layer. Refer to Figure 7 , Figure 7 is a schematic structural diagram of a display panel provided in another embodiment of the present application.

[0053] Such as Figure 7As shown, the display area 102 of the display panel further includes a packaging layer 130, which is used to package the light-emitting units and can prevent water and oxygen from entering the interior of the display panel.

[0054] Optionally, the packaging layer 130 may include at least one of an organic material layer and an inorganic material layer. Specifically, the inorganic packaging layer has good barrier properties against water vapor and oxygen, and the presence of the organic packaging layer can make the surface flatness of the device better and improve the anti-bending property of the display panel.

[0055] Optionally, the packaging layer 130 may include a packaging glue, which can completely cover the light-emitting units in the light-emitting unit layer to prevent water and oxygen from entering the display panel. In an example of this embodiment, at least one of light conversion particles and diffusion particles may be provided in the packaging glue as needed to achieve light color conversion / diffusion.

[0056] Optionally, when the packaging layer 130 is in direct contact with the second material layer 116, the refractive index of the packaging layer 130 is less than that of the second material layer 116. Based on the above total reflection principle, it can better ensure that ambient light undergoes total reflection within the second material layer 116.

[0057] In an embodiment of the present application, the packaging layer can be reused as the above-mentioned light condensing layer. Refer to Figure 7 , a protrusion 1302 can be provided on the packaging layer 130, and the convex surface of the protrusion faces away from the first substrate 112. It can be understood that this protrusion is equivalent to a convex lens. When the light-emitting angle of the display light passes through the convex lens, it will be converged. After the converged display light passes through the second material layer 116 and the first material layer 118, the light-emitting angle will not become too large, thereby improving the color shift phenomenon.

[0058] The applicant also found that when the packaging layer 130 is reused as the above-mentioned light condensing layer including a protrusion, the refractive index of the packaging layer 130 can be set to be greater than that of the second material layer 116. Specifically, Figure 7The refractive index of the protrusion 1302 shown is greater than that of the second material layer 116. The contact surface between the protrusion 1302 and the second material layer 116 protrudes towards the direction where the second material layer 116 is located. That is, the protrusion 1302 can be regarded as a convex lens. At the same time, an air gap can be formed between the protrusions 1302 to ensure that at least part of the ambient light undergoes total internal reflection. Further, when large-angle light in the display light is incident on the contact surface between the protrusion 1302 and the second material layer 116, the angle between the large-angle light and the normal of the contact surface is x. Since the refractive index of the protrusion 1302 is greater than that of the second material layer 116, when the large-angle light is incident from the protrusion 1302 with a high refractive index to the second material layer 116 with a low refractive index, the angle between the display light and the normal of the contact surface is y, and y is greater than x. At the same time, since the protrusion 1302 is a convex lens, the normal of the contact surface is inclined away from the central axis direction of the second material layer 116 relative to the thickness direction of the display panel. When y is greater than x, it is equivalent to the light refracted in the second material layer 116 being inclined towards the central axis direction of the protrusion 1302 at a large angle relative to the protrusion 1302. That is, a convex lens with a large refractive index combined with a second material layer 116 with a small refractive index can also play an excellent role in converging light.

[0059] That is to say, when the refractive index of the encapsulation layer 130 is set to be greater than that of the second material layer 116, the light condensing layer can better converge the display light, so that the display light can be normally emitted after passing through the first material layer 118 and the second material layer 116. See Figure 8 , when the encapsulation layer 130 is reused as the light condensing layer, in order to better ensure that at least part of the ambient light undergoes total internal reflection and better adjust the light output angle of the display light, a third material layer 182 can be provided between the encapsulation layer 130 and the second material layer 116. The refractive index of the third material layer 182 can be less than that of the second material layer 116 and less than that of the encapsulation layer 130. In this way, the display light can be converged between the third material layer 182 and the encapsulation layer 130 (the principle can refer to the above discussion about the encapsulation layer 130 and the second material layer 116), and at least part of the ambient light can undergo total internal reflection in the second material layer 116.

[0060] In the above embodiments, the display function layer 114 includes a light-emitting unit layer. It should be noted that the solution of the present application is not limited to self-luminous display panels (such as organic light-emitting display panels, MicroLEDs), but can also be used for liquid crystal display panels.

[0061] As Figure 9 shown, the display panel 100 includes a liquid crystal display panel, and the liquid crystal display panel includes an array substrate 128 and a color filter substrate 126. The display function layer 114 can include a liquid crystal layer.

[0062] Further, the array substrate includes a substrate 1284 and a thin film transistor layer 1282 located on the substrate 1284. The substrate 1284 may include the first substrate described above. Further, the second material layer 116 and the first material layer 118 may be located on a side of the color filter substrate 126 away from the array substrate 128.

[0063] In this embodiment, the display panel 100 may be formed by splicing two or more liquid crystal display panels. The second material layer 116 and the first material layer 118 are provided on the color filter substrate 126, and the second material layer 116 and the first material layer 118 extend from the display area to the splicing area. The second material layer 116 and the first material layer 118 cooperate with each other to cause partial ambient light incident into the display panel to undergo total reflection and finally enter the splicing area, thereby improving the brightness of the splicing area.

[0064] In another embodiment of the present application, in order to further enhance the display brightness of the splicing area and improve the shadow phenomenon, a light reflection layer may be provided in the splicing area. The light reflection layer is used to reflect the ambient light directly irradiated on the splicing area 110 and reflect the part of the ambient light totally reflected in the second material layer out of the splicing area, thereby improving the brightness of the splicing area. Refer to Figure 10 this application, specifically, it is a schematic structural diagram of a display panel provided in another embodiment of this application. Optionally, the light reflection layer 150 may be located on a side of the second material layer 116 away from the first material layer 118 to prevent the light reflection layer 150 from blocking the totally reflected light, so as to ensure that the totally reflected light in the second material layer 116 can enter the splicing area 110.

[0065] Further, the light reflection layer 150 may at least partially cover the splicing area 110. Optionally, the light reflection layer 150 may at least partially cover the encapsulation layer and / or partial side edges of the first substrate 114, so that the light reflection layer has a relatively large reflection area and can reflect the ambient light out as much as possible.

[0066] On the basis of the foregoing solution, the applicant also found that the shadow problem in the splicing area can also be improved by adjusting the shape of the splicing area. Refer to Figure 11 this application, specifically, it is a schematic structural diagram of a display panel provided in another embodiment of this application.

[0067] Figure 11 In the display panel 100, it includes a first display area 102 and a second display area 104. The splicing area 110 between the first display area 102 and the second display area 104 is non-linear, that is, when the sub-display area panel corresponding to the first display area 102 and the sub-display panel corresponding to the second display area 104 form the splicing area, the sides facing each other are not flat straight lines.

[0068] Specifically,Figure 11 In the display panel shown, one side of the display area close to the splicing area 110 includes a convex portion and a concave portion. The convex portion includes one or more sub-light-emitting units. The convex portions and the concave portions between the display areas are fitted to each other. It should be noted that the convex portions and the concave portions in the display panel correspond to each other. Exemplarily, if area Q in the first display area 102 is a convex portion, then the portion in the second display area that fits with area Q is a concave portion. Further, one or more light-emitting units can be arranged in area Q, which can better improve the shadow phenomenon in the splicing area. On the other hand, the splicing area 110 between the first display area 102 and the second display area 104 is non-linear, which can prevent relative displacement and friction from occurring after the adjacent two splicing units are spliced, and avoid damage to the substrate.

[0069] Figure 11 It is shown that the convex portion is triangular, and the concave portion is also triangular and matches the convex portion. In other examples of the present application, when the convex portion is rectangular, the concave portion is rectangular and matches the convex portion; or, when the convex portion is trapezoidal, the concave portion is trapezoidal and matches the convex portion; or, when the convex portion is arc-shaped, the concave portion is arc-shaped and matches the convex portion.

[0070] In another embodiment of the present application, a display device is also disclosed. The display device can include devices such as mobile phones, tablet computers, and televisions.

[0071] The above content is a further detailed description of the present invention in combination with specific preferred embodiments. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should all be regarded as belonging to the protection scope of the present invention.

Claims

1. A display panel, characterized in that, Comprising: The display panel includes at least two display regions, and a splicing region is included between the display regions; the display region further includes a first substrate, a display functional layer, a second material layer, and a first material layer arranged in sequence; The first material layer is located on a side of the second material layer away from the display functional layer, and both the first material layer and the second material layer extend from the display region to the splicing region. A side edge of the second material layer near the splicing region includes a plurality of serrated portions; Wherein, the refractive index of the first material layer is less than the refractive index of the second material layer; The display functional layer includes a light-emitting unit layer, and the light-emitting unit layer includes a plurality of sub-light-emitting units; the display panel further includes a light condensing layer, and the light condensing layer is located between the light-emitting unit layer and the second material layer; Or, The display panel further includes a third material layer, and the third material layer is located on a side of the second material layer away from the first material layer, and the third material layer extends from the display region to the splicing region; wherein, the refractive index of the third material layer is less than the refractive index of the second material layer.

2. The display panel according to claim 1, wherein, Further comprising: A light reflection layer, and the light reflection layer is located on a side of the second material layer away from the first material layer; The light reflection layer at least partially covers the splicing region.

3. The display panel according to claim 1, wherein Further comprising: When the display panel includes a light condensing layer, the light condensing layer includes a convex lens, and the convex lens at least partially overlaps with a positive projection of the sub-light-emitting unit on the second material layer.

4. The display panel according to claim 1, wherein Comprising: An encapsulation layer, and the encapsulation layer is used for encapsulating the sub-light-emitting units; When the display panel includes a light condensing layer, the encapsulation layer is reused as the light condensing layer.

5. The display panel according to claim 4, wherein Comprising: The encapsulation layer includes encapsulation glue, or the encapsulation layer includes at least one of an organic material layer and an inorganic material layer.

6. The display panel according to claim 4, wherein, Comprising: A side of the encapsulation layer away from the light-emitting unit layer includes a protrusion, and the protrusion at least partially overlaps with a positive projection of the sub-light-emitting unit on the second material layer.

7. The display panel according to claim 1, wherein The display panel is a liquid crystal display panel, and the liquid crystal display panel includes an array substrate and a color filter substrate, The display functional layer includes: a liquid crystal layer located between the array substrate and the color filter substrate; The display panel further includes a light condensing layer, and the light condensing layer is located between the color filter substrate and the second material layer.

8. The display panel according to claim 1, wherein A side of the display region near the splicing region includes a protrusion portion and a recessed portion, and one or more sub-light-emitting units are included in the protrusion portion; The protrusion portions and the recessed portions between the display regions are mutually spliced.

9. The display panel according to claim 8, wherein When the protrusion portion is triangular, the recessed portion is a triangle matching the protrusion portion; or, When the protrusion portion is rectangular, the recessed portion is a rectangle matching the protrusion portion; or, When the protrusion portion is trapezoidal, the recessed portion is a trapezoid matching the protrusion portion; or, When the protrusion portion is arc-shaped, the recessed portion is an arc matching the protrusion portion.

10. The display panel according to claim 1, wherein The first material layer includes an anti-glare and anti-reflection layer or a protective film.

11. A display device, characterized in that, A display panel according to any one of claims 1 to 10.

Images