Display panel and display device

Abstract

The embodiment of the present application provides a display panel and a display device. The display panel includes a substrate, a light-emitting structure layer, an encapsulation layer, a patterned layer, a first black matrix and a plurality of color filters. The light-emitting structure layer is arranged on one side of the substrate, and the light-emitting structure layer includes a plurality of pixel units. The encapsulation layer is arranged on a side of the light-emitting structure layer away from the substrate. The patterned layer is arranged on a side of the encapsulation layer away from the substrate, and the patterned layer includes a plurality of patterned structures, the patterned structures correspond one-to-one to the pixel units, and the plurality of patterned structures have a first refractive index. The first black matrix is ​​located between two adjacent patterned structures. The color filter covers the patterned structure, and the color of the color filter corresponds one-to-one to the color of the pixel unit, and the color filter has a second refractive index, which is less than the first refractive index.

Description

Technical Field

[0001] The present application 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) is a commonly used display panel. With the development of society, OLED is widely used in different scenarios, such as mobile phones, tablet computers, and car display devices. In the related art, the L-Decay (brightness decay) of the OLED display panel at a large viewing angle is too fast. Under the condition of a large viewing angle, the screen seen by the human eye is unclear due to the rapid brightness decay. How to slow down the L-Decay of the display panel at a large viewing angle is a problem that needs to be considered at present. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a display panel and a display device to reduce the L-Decay of the display panel at a large viewing angle. The specific technical solution is as follows:

[0004] The embodiment of the first aspect of the present application proposes a display panel. The display panel includes a substrate, a light-emitting structure layer, an encapsulation layer, a patterned layer, a first black matrix and a plurality of color filters. The light-emitting structure layer is arranged on one side of the substrate, and the light-emitting structure layer includes a plurality of pixel units. The encapsulation layer is arranged on a side of the light-emitting structure layer away from the substrate. The patterned layer is arranged on a side of the encapsulation layer away from the substrate, and the patterned layer includes a plurality of patterned structures, the patterned structures correspond one-to-one to the pixel units, and the plurality of patterned structures have a first refractive index. The first black matrix is ​​located between two adjacent patterned structures. The color filter covers the patterned structure, and the color of the color filter corresponds one-to-one to the color of the pixel unit, and the color filter has a second refractive index, which is less than the first refractive index.

[0005] According to the display panel in the embodiment of the present application, a patterned structure and a color filter corresponding to the pixel unit of the display panel are arranged on the side away from the base substrate, wherein the patterned structure can adopt a material with a first refractive index, and the color filter adopts a material with a second refractive index, and the second refractive index is smaller than the first refractive index, thereby forming a stacked structure with a refractive index difference. After the light emitted by the light-emitting structure layer passes through the patterned structure and the color filter, the light can be gathered toward the center of the pixel unit, thereby increasing the light output efficiency of the display panel. The first black matrix is ​​arranged between two adjacent patterned structures, so as to avoid sacrificing the light output at some angles, thereby slowing down the L-Decay at large angles.

[0006] In addition, according to one embodiment of the present application, the following technical features may also be provided:

[0007] In some embodiments of the present application, the display panel also includes an organic layer, which is arranged on a side of the plurality of color filters and the first black matrix away from the base substrate, and the organic layer has a third refractive index, which is less than the second refractive index.

[0008] In some embodiments of the present application, the display panel also includes a touch film layer, which is arranged on a side of the organic layer away from the base substrate, and the touch film layer includes a first metal layer, a second metal layer and an insulating layer, and the insulating layer is arranged between the first metal layer and the second metal layer.

[0009] In some embodiments of the present application, projections of the first metal layer and the second metal layer on the base substrate are located within the projection of the first black matrix on the base substrate.

[0010] In some embodiments of the present application, the display panel includes a second black matrix, and the second black matrix is ​​arranged on a side of the second metal layer away from the base substrate.

[0011] In some embodiments of the present application, a first groove is formed on the surface of the organic layer, the projection of the first groove on the base substrate at least partially overlaps with the first black matrix on the base substrate, the first metal layer and the second metal layer are arranged in the first groove, and the second black matrix located in the first groove covers the first metal layer.

[0012] In some embodiments of the present application, the thickness of the patterned layer is greater than the thickness of the color filter.

[0013] In some embodiments of the present application, the projection of the patterned structure on the base substrate covers the light emitting area of ​​the pixel unit.

[0014] In some embodiments of the present application, at least two first pattern structures are formed on a surface of the color filter away from the base substrate.

[0015] In some embodiments of the present application, at least two second pattern structures are formed on a surface of the organic layer away from the base substrate.

[0016] In some embodiments of the present application, a first gap is formed between adjacent color filters, the first black matrix is ​​arranged in the first gap, and a portion of the first black matrix covers the color filters around the first gap, and the display panel also includes a third black matrix, the third black matrix is ​​arranged on a side of the touch film layer away from the base substrate, and the projection of the third black matrix on the base substrate is located within the projection of the first black matrix on the base substrate.

[0017] In some embodiments of the present application, the display panel further includes a buffer layer, and the buffer layer is disposed between the touch film layer and the organic layer.

[0018] In some embodiments of the present application, the encapsulation layer includes a first inorganic encapsulation layer, a first organic encapsulation layer, and a second inorganic encapsulation layer. The first inorganic encapsulation layer is arranged on a side of the light-emitting structure layer away from the base substrate, the patterned layer and the color filter are arranged on a side of the first inorganic encapsulation layer away from the base substrate, and the first organic encapsulation layer is arranged on a side of the patterned layer and the color filter away from the base substrate.

[0019] In some embodiments of the present application, the encapsulation layer includes a first inorganic encapsulation layer, a first organic encapsulation layer, and a second inorganic encapsulation layer stacked in sequence from a side close to the light-emitting structure layer, and the display panel also includes a touch film layer, which is arranged on a side of the second inorganic encapsulation layer away from the light-emitting structure layer, and the touch film layer is arranged between the encapsulation layer and the patterned layer.

[0020] In some embodiments of the present application, the touch film layer includes a first metal layer, a second metal layer and an insulating layer, the insulating layer is arranged between the first metal layer and the second metal layer, and the display panel also includes a second planarization layer, and the second planarization layer is arranged on a side of the insulating layer away from the base substrate.

[0021] In some embodiments of the present application, a second gap is formed between the plurality of color filters, and the display panel further includes a fourth black matrix, which is disposed in the second gap, and a portion of the fourth black matrix covers the color filters around the second gap.

[0022] In some embodiments of the present application, the material of the first black matrix is ​​an organic material.

[0023] An embodiment of the second aspect of the present application provides a display device, comprising the display panel in any embodiment of the first aspect.

[0024] According to the display device in the embodiment of the present application, since it has the display panel in any embodiment of the first aspect, it also has the beneficial effects of any embodiment of the first aspect, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other embodiments can also be obtained based on these drawings.

[0026] Figure 1 This is a schematic diagram of the structure of the display panel in the embodiment of the present application;

[0027] Figure 2 A schematic diagram of the structure of preparing a display panel in one of the embodiments of the present application (preparing a light-emitting structure layer);

[0028] Figure 3 A schematic diagram of the structure of preparing a display panel in one of the embodiments of the present application (preparing a patterned layer);

[0029] Figure 4 A schematic diagram of the structure of preparing a display panel in one of the embodiments of the present application (preparing a color filter and a first black matrix);

[0030] Figure 5 A schematic diagram of the structure when preparing a display panel in one of the embodiments of the present application (preparing an organic layer);

[0031] Figure 6 A schematic diagram of the structure of the display panel in one of the embodiments of the present application (preparation of a buffer layer);

[0032] Figure 7 A schematic diagram of the structure of the display panel in one of the embodiments of the present application (preparation of a touch film layer);

[0033] Figure 8 A schematic diagram of the structure of preparing a display panel in one of the embodiments of the present application (preparing a second black matrix);

[0034] Fig. 9 A schematic diagram of the structure of preparing a display panel in one of the embodiments of the present application (preparing a first flat layer);

[0035] Fig.10 This is a schematic diagram of the structure of the touch film layer of the display panel in the first embodiment of the present application;

[0036] Fig.11 This is a schematic diagram of the structure of a touch film layer of a display panel in a second embodiment of the present application;

[0037] Fig.12 This is a schematic diagram of the structure of a display panel in another embodiment of the present application;

[0038] Fig.13 This is a schematic diagram of the structure of a display panel in another embodiment of the present application;

[0039] Fig.14 This is a schematic diagram of the structure of a display panel in another embodiment of the present application;

[0040] Fig.15 This is a schematic diagram of the structure of a display panel in another embodiment of the present application;

[0041] Fig.16 This is a schematic diagram of the structure of a display panel in another embodiment of the present application;

[0042] Fig.17 A schematic diagram of the structure of preparing a display panel in another embodiment of the present application (preparing an encapsulation layer);

[0043] Fig.18 A schematic diagram of the structure of preparing a display panel in another embodiment of the present application (preparing a touch film layer);

[0044] Fig.19 A schematic diagram of the structure of preparing a display panel in another embodiment of the present application (preparing a color filter and a first black matrix);

[0045] Fig. 20 A schematic diagram of the structure of preparing a display panel in another embodiment of the present application (preparing a fourth black matrix);

[0046] Fig.21 It is a schematic diagram of the structure when preparing a display panel in another embodiment of the present application (preparing the third planarization layer).

[0047] The reference numerals are as follows:

[0048] 100-substrate substrate; 110-barrier layer;

[0049] 200-light emitting structure layer; 210-green light emitting structure; 220-red light emitting structure; 230-blue light emitting structure; 240-anode;

[0050] 300 - encapsulation layer; 310 - first inorganic encapsulation layer; 320 - first organic encapsulation layer; 330 - second inorganic encapsulation layer;

[0051] 400-patterned layer; 410-patterned structure;

[0052] 510 - first black matrix; 520 - second black matrix; 530 - third black matrix; 540 - fourth black matrix;

[0053] 600-color filter; 601-first gap; 602-second gap; 610-green filter; 620-red filter; 630-blue filter; 640-first pattern structure;

[0054] 700-organic layer; 701-first groove; 702-second pattern structure; 710-buffer layer;

[0055] 800 - touch film layer; 810 - first metal layer; 820 - second metal layer; 830 - insulation layer; 840 - second planarization layer;

[0056] 900 - a first planarization layer; 910 - a third planarization layer. DETAILED DESCRIPTION

[0057] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other embodiments can also be obtained based on these drawings.

[0058] For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figures, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures.

[0059] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field based on the present application belong to the scope of protection of the present application.

[0060] like Figure 1As shown, an embodiment of the first aspect of the present application proposes a display panel. The display panel includes a substrate 100, a light emitting structure layer 200, an encapsulation layer 300, a patterned layer 400, a first black matrix 510 and a plurality of color filters 600. The light emitting structure layer 200 is arranged on one side of the substrate 100, and the light emitting structure layer 200 includes a plurality of pixel units. The encapsulation layer 300 is arranged on the side of the light emitting structure layer 200 away from the substrate 100. The patterned layer 400 is arranged on the side of the encapsulation layer 300 away from the substrate 100, and the patterned layer 400 includes a plurality of patterned structures 410, the patterned structures 410 correspond one-to-one to the pixel units, and the plurality of patterned structures 410 have a first refractive index. The first black matrix 510 is located between two adjacent patterned structures 410. The color filter 600 covers the patterned structure 410, and the color of the color filter 600 corresponds one-to-one to the color of the pixel unit, and the color filter 600 has a second refractive index, which is less than the first refractive index.

[0061] According to the display panel in the embodiment of the present application, a patterned structure 410 and a color filter 600 corresponding to the pixel unit of the display panel are arranged on the side away from the base substrate 100, wherein the patterned structure 410 can adopt a material with a first refractive index, and the color filter 600 adopts a material with a second refractive index, and the second refractive index is smaller than the first refractive index, thereby forming a stacked structure with a refractive index difference. After the light emitted by the light-emitting structure layer 200 passes through the patterned structure 410 and the color filter 600, the light can be gathered toward the center of the pixel unit, thereby increasing the light output efficiency of the display panel, and the first black matrix 510 is arranged between two adjacent patterned structures 410, so as to avoid sacrificing the light output at some angles, thereby slowing down the L-Decay at large angles.

[0062] In some specific embodiments of the present application, the light emitting structure layer 200 may include light emitting structures of multiple colors, for example: a green light emitting structure 210, a red light emitting structure 220 and a blue light emitting structure 230, and the color filter 600 includes a green filter 610, a red filter 620 and a blue filter 630. The first black matrix 510 is a BM (Black Matrix), which is arranged between two adjacent patterned structures 410. The first black matrix 510 itself can be used to block light to prevent light of different colors from interfering with each other. When the first black matrix 510 is arranged between two adjacent patterned structures 410, and the projections of the first black matrix 510 and the patterned structure 410 on the base substrate 100 do not overlap, it is possible to avoid sacrificing light at some angles, and slow down the L-Decay at large angles.

[0063] In some specific preparation processes, the process of making a display panel may include:

[0064] like Figures 2 to 4 As shown, Figure 2 It is shown that a barrier layer 110 can be first formed on the base substrate 100, and then a light emitting structure layer 200 is formed on the barrier layer 110, and an encapsulation layer 300 is formed on the side of the light emitting structure layer 200 away from the base substrate 100, and then Figure 3 The patterned layer 400 is formed on the encapsulation layer 300, and each patterned structure 410 in the patterned layer 400 corresponds to a pixel unit of the light emitting structure layer 200 one by one. Figure 4 It shows that a first black matrix 510 is formed between adjacent patterned structures 410, and finally a color filter 600 is covered on the patterned structure 410. The color filter 600 is CF (Color Filter). Each color filter 600 will also correspond one-to-one to a pixel unit of the light-emitting structure layer 200, so as to improve the light output efficiency of the display panel.

[0065] like Figure 5 As shown, in some embodiments of the present application, the display panel further includes an organic layer 700, which is disposed on a side of the plurality of color filters 600 and the first black matrix 510 away from the base substrate 100, and the organic layer 700 has a third refractive index, which is less than the second refractive index. In this embodiment, the organic layer 700 can be made of a material with a lower water vapor transmission rate to avoid water vapor erosion of the light-emitting structure layer 200. Since the organic layer 700 is disposed on a side of the color filter 600 away from the base substrate 100, and the organic layer 700 is made of a material with a third refractive index, the third refractive index is less than the second refractive index, and the second refractive index is less than the first refractive index, in this way, the patterned structure 410, the color filter 600 and the organic layer 700 form a stacked structure with multiple different refractive indices. In the related art, when the light emitting structure layer 200 emits light, the light will be emitted in multiple directions, and some of the light will be emitted to the side of the light emitting structure layer 200. The side light emission of the light emitting layer structure 200 will cause part of the light to be absorbed by the first black matrix 510 and cannot be emitted from the light emitting surface of the display panel, which will undoubtedly cause a certain light emission loss. In the present embodiment, since a stacked structure with different refractive indices is formed between the patterned structure 410, the color filter 600 and the organic layer 700, even if there is a side of the light emitting structure layer 200, the lateral light emission can be refracted into front light emission by the difference in the refractive index of the layers thereon, thereby increasing the front light emission efficiency of the light emitting structure layer 200. In addition, in the present embodiment, an organic layer 700 is also provided on the side of the first black matrix 510 away from the base substrate 100, so that part of the light absorbed by the first black matrix 510 can be refracted out, thereby further increasing the light emission.

[0066] In some specific embodiments of the present application, the first refractive index is greater than or equal to 1.7, the second refractive index is greater than or equal to 1.5 and less than or equal to 1.65, and the third refractive index is greater than or equal to 1.4 and less than or equal to 1.55. For example, when the first refractive index is 1.7 and the second refractive index can be 1.5, the value range of the third refractive index is greater than or equal to 1.4 and less than 1.5. When the first refractive index is 1.7 and the second refractive index is 1.55, the value range of the third refractive index is greater than or equal to 1.4 and less than 1.55. In other words, the value range of the third refractive index is related to the second refractive index, and the third refractive index needs to be smaller than the second refractive index. Only in this way can the stacked structure formed by the patterned structure 410, the color filter 600 and the organic layer 700 have a refractive index difference to slow down the L-Decay at a large angle.

[0067] like Figure 6 , Figure 7 and Fig.10 As shown, in some embodiments of the present application, the display panel further includes a touch film layer 800, which is disposed on a side of the organic layer 700 away from the base substrate 100, and the touch film layer 800 includes a first metal layer 810, a second metal layer 820 and an insulating layer 830, and the insulating layer 830 is disposed between the first metal layer 810 and the second metal layer 820. In this embodiment, the first metal layer 810 can be called a TMA layer (Touch Metal A, touch layer A), the second metal layer 820 can be called a TMB (Touch Metal B, touch layer B), and the insulating layer 830 is also called a TLD layer (Touch Insulation Layer Dielectric, touch insulating layer). Usually, the first metal layer 810 forms a bridge key, that is, a bridge structure of touch control, and the second metal layer 820 forms Tx (transmitting or sending touch signals) and Rx (receiving touch signals) wiring, which can be a mesh structure. In order to reduce the resistance, the first metal layer 810 and the second metal layer 820 can be double-layer wiring, and the two can be connected through vias. In the specific preparation process, the first metal layer 810 can be formed on the organic layer 700 first, then the insulating layer 830 can be formed, and finally the second metal layer 820 can be formed. In this embodiment, by providing the touch film layer 800, the display panel can have a touch function.

[0068] In some specific embodiments, the dielectric constant of the organic layer 700 is 2.8 to 3.2. When the dielectric constant of the organic layer 700 is 2.8 to 3.2, the influence of the cathode in the display panel on the touch film layer 800 can be shielded. In a more specific embodiment, the dielectric constant of the organic layer 700 is 3.0.

[0069] In addition, in some specific embodiments, the insulating layer 830 may be made of silicon nitride, which can not only provide insulation but also block the invasion of water and oxygen, thereby increasing the packaging reliability of the display panel. The insulating layer 830 may also be made of organic material, which can further shield the impact on the cathode in the display panel.

[0070] In some embodiments of the present application, the projections of the first metal layer 810 and the second metal layer 820 on the base substrate 100 are located within the projection of the first black matrix 510 on the base substrate 100. In this embodiment, the projections of the first metal layer 810 and the second metal layer 820 are located within the projection of the first black matrix 510, so that the metal reflection can be prevented from affecting the light output of the display panel.

[0071] like Figure 8 As shown, in some embodiments of the present application, the display panel includes a second black matrix 520, and the second black matrix 520 is arranged on a side of the second metal layer 820 away from the base substrate 100. In this embodiment, by forming the second black matrix 520 on a side of the second metal layer 820 away from the base substrate 100, metal reflection can be prevented and dark state reflectivity can be reduced, thereby preventing the reflection of the second metal layer 820 from affecting the light output of the display panel.

[0072] In some specific embodiments, when the material selected for the second metal layer 820 is a black wire, the second black matrix 520 may not be provided, so as to simplify the process. Of course, in some embodiments, when the material selected for the second metal layer 820 is a black wire, the second black matrix 520 may also be provided, and this application does not make any special limitation here.

[0073] like Figure 5 , Fig.10 and Fig.11 As shown, in some embodiments of the present application, a first groove 701 is formed on the surface of the organic layer 700, and the projection of the first groove 701 on the base substrate 100 overlaps at least part of the first black matrix 510 on the base substrate 100, and the first metal layer 810 and the second metal layer 820 are arranged in the first groove 701, and the second black matrix 520 located in the first groove 701 covers the first metal layer 810. Fig.10 As shown, in a specific embodiment, Fig.10The structure schematic diagram of the first embodiment of the touch film layer 800 located in the first groove 701 is shown. In the specific preparation process, the first metal layer 810 can be first formed in the first groove 701, and then the insulating layer 830 can be formed on the first metal layer 810. Then, the second metal layer 820 can be formed on the insulating layer 830, and finally the second black matrix 520 is covered on the second metal layer 820 and the insulating layer 830. In the first embodiment, the insulating layer 830 can be integrally formed, which can simplify the process. In another specific embodiment, Fig.11 The schematic diagram of the structure of the second embodiment of the touch film layer 800 located in the first groove 701 is shown. In the specific preparation process, the first metal layer 810 can be formed in the first groove 701 first, and then, a patterned insulating layer 830 is formed on the first metal layer 810. The insulating layer 830 can only cover the first metal layer 810 and avoid forming the insulating layer 830 in the remaining parts of the first groove 701. Then, the second metal layer 820 can be formed, and finally the second black matrix 520 is covered on the second metal layer 820 and the patterned insulating layer 830. Compared with the first embodiment, the insulating layer 830 in the second embodiment is not integrally formed, and the insulating layer 830 located in the first groove 701 has a fracture with another part of the insulating layer 830. In this way, after the second black matrix 520 is formed on the second metal layer 820, the second black matrix 520 can cover the side and top of the first metal layer 810, so that the reflectivity of the first metal layer 810 can be reduced.

[0074] like Fig.12 As shown, in some embodiments of the present application, at least two first pattern structures 640 are formed on the surface of the color filter 600 away from the base substrate 100. In this embodiment, Figure 1 On the basis of the display panel, after the color filter 600 is formed, a protrusion or groove can be formed on the surface of the color filter 600 away from the base substrate 100. These protrusions or grooves can be called the first pattern structure 640. In this way, when the light-emitting structure layer 200 emits light, the first pattern structure 640 can disperse the light emitted from the front, so that the light is transmitted in multiple directions, thereby further reducing the L-Decay at large angles. However, for the display panel manufactured in this way, the light from the front will be dispersed by the first pattern structure 640, causing part of the light to be emitted to the side. Although this can reduce the L-Decay at large angles, the light emitted to the side is easily reflected back and forth inside the display panel, resulting in a reduction in the overall light output of the display panel, which will sacrifice part of the light output. Therefore, it can be decided whether to adopt this method to reduce the L-Decay at large angles based on specific design requirements.

[0075] In some embodiments of the present application, the thickness of the patterned layer 400 is greater than the thickness of the color filter 600. In this embodiment, by making the thickness of the patterned layer 400 greater than the thickness of the color filter 600, the light emitted by the light emitting structure layer 200 can be better gathered toward the center of the pixel unit, thereby increasing the light extraction efficiency of the display panel.

[0076] In some embodiments of the present application, the projection of the patterned structure on the base substrate 100 covers the light emitting area of ​​the pixel unit. In this embodiment, by making the projection of the patterned structure cover the light emitting area of ​​the pixel unit, the light extraction efficiency of the display panel can be further increased.

[0077] like Fig.13 As shown, in some embodiments of the present application, at least two second pattern structures 702 are formed on the surface of the organic layer 700 away from the base substrate 100. In this embodiment, Figure 1 On the basis of the display panel, after the organic layer 700 is formed, a protrusion or a groove can be formed on the surface of the organic layer 700 away from the base substrate 100. These protrusions or grooves can be called the second pattern structure 702. In this way, when the light-emitting structure layer 200 emits light, the second pattern structure 702 can disperse the light emitted from the front, so that the light is transmitted in multiple directions, thereby further reducing the L-Decay at a large angle. However, for the display panel manufactured in this way, since the light from the front will be dispersed by the first pattern structure 640, causing part of the light to be emitted to the side, although this can reduce the L-Decay at a large angle, the light emitted to the side is easily reflected back and forth inside the display panel, resulting in a reduction in the overall light output of the display panel, and the light output of part of the display panel will be sacrificed. Therefore, it can be decided whether to adopt this method to reduce the L-Decay at a large angle according to specific design requirements.

[0078] like Fig.14 As shown, in some embodiments of the present application, a first gap 601 is formed between the plurality of color filters 600, the first black matrix 510 is disposed in the first gap 601, and a portion of the first black matrix 510 covers the color filters 600 around the first gap 601, and the display panel further includes a third black matrix 530, the third black matrix 530 is disposed on a side of the touch film layer 800 away from the base substrate 100, and the projection of the third black matrix 530 on the base substrate 100 is located within the projection of the first black matrix 510 on the base substrate 100. In this embodiment, Figure 1On the basis of the display panel, the first black matrix 510 can be set in the first gap 601, and a part of the first black matrix 510 covers the color filter 600 around the first gap 601, so that the part of the color filter 600 located on the side of the first gap 601 is covered by the first black matrix 510, which can block the light at a part of the angle and increase the L-Decay at a large angle. In addition, the present embodiment is also provided with a third black matrix 530, and the projection of the third black matrix 530 on the base substrate 100 is located within the projection of the first black matrix 510 on the base substrate 100. By setting the third black matrix 530, the L-Decay at a large angle can be further increased. In a specific application scenario, the display panel can be applied to a vehicle-mounted display device, but when driving at night, the light emitted by the vehicle-mounted display device is easily projected onto the front windshield. During driving, the picture projected on the front windshield will affect the driving line of sight and cause certain safety hazards. The display panel in this embodiment can block light at a portion of the angles through the first black matrix 510 and the third black matrix 530 to increase the L-Decay at large angles. In this way, by reducing the angle of the output light of the display panel, excessive light is prevented from being projected onto the front windshield, thereby reducing the impact of the image projected on the front windshield on the driver's vision.

[0079] In combination with the above embodiments, it can be known that the display panel provided by the embodiments of the present application can increase the L-Decay at large angles as needed, or can slow down the L-Decay at large angles as needed. The difference in increasing or slowing down the L-Decay at large angles lies mainly in that in the display panel that increases the L-Decay at large angles, the light emitted from the side of the light emitted by the light-emitting structure layer 200 is absorbed by the third black matrix 530, thereby reducing the light emitted at large angles. In the display panel that slows down the L-Decay at large angles, the third black matrix 530 is not provided, so the light emitted from the side of the light emitted by the light-emitting structure layer 200 can be emitted normally.

[0080] In some embodiments of the present application, the display panel further includes a buffer layer 710, and the buffer layer 710 is disposed between the touch film layer 800 and the organic layer 700. In this embodiment, before making the touch film layer 800, the buffer layer 710 can be deposited on the organic layer 700, and the material of the buffer layer 710 can be silicon nitride, so as to increase the reliability of the package. In addition, the buffer layer 710 can also protect the organic layer 700, and avoid damage to the organic layer 700 when making the first metal layer 810 of the touch film layer 800, and the buffer layer 710 can further shield the influence on the cathode and increase the signal amount of the touch. Of course, if the organic layer 700 can meet the relevant design requirements, the buffer layer 710 can also be omitted.

[0081] like Fig. 9As shown, in some specific embodiments of the present application, the display panel further includes a first planarization layer 900, which is disposed on a side of the touch film layer 800 away from the base substrate 100. In this embodiment, the first planarization layer 900 can prevent the touch film layer 800 from being exposed.

[0082] like Fig.15 As shown, in some embodiments of the present application, the encapsulation layer 300 includes a first inorganic encapsulation layer 310, a first organic encapsulation layer 320, and a second inorganic encapsulation layer 330, the first inorganic encapsulation layer 310 is arranged on a side of the light emitting structure layer 200 away from the base substrate 100, the patterned layer 400 and the color filter 600 are arranged on a side of the first inorganic encapsulation layer 310 away from the base substrate 100, and the first organic encapsulation layer 320 is arranged on a side of the patterned layer 400 and the color filter 600 away from the base substrate 100. In this embodiment, the patterned layer 400 and the color filter 600 are arranged between the first inorganic encapsulation layer 310 and the first organic encapsulation layer 320. In the specific preparation process, after the first inorganic encapsulation layer 310 is formed, the patterned layer 400 and the color filter 600 can be directly formed on the first inorganic encapsulation layer 310, and then the first organic encapsulation layer 320 and the second inorganic encapsulation layer 330 are formed on the patterned layer 400 and the color filter 600, and finally the touch film layer 800 is formed on the second inorganic encapsulation layer 330. In the related art, when the patterned layer 400 is a material with a high refractive index, since the surface reflectivity of the high refractive index material is higher than that of the low refractive index material, it is easy to cause the dark state reflectivity of the EES structure and the COE structure stack to increase. In this application, placing the patterned layer 400 at the bottom of the color filter 600 can ensure that the reflectivity remains unchanged. In addition, in this embodiment, the patterned layer 400 and the touch film layer 800 are formed on the first inorganic encapsulation layer 310, and the first organic encapsulation layer 320 and the second inorganic encapsulation layer 330 are formed on the patterned layer 400 and the touch film layer 800 to ensure the reliability of the light-emitting structure layer 200.

[0083] like Fig.16As shown, in some other embodiments of the present application, the encapsulation layer 300 includes a first inorganic encapsulation layer 310, a first organic encapsulation layer 320, and a second inorganic encapsulation layer 330 stacked in sequence from the side close to the light emitting structure layer 200, and the display panel further includes a touch film layer 800, which is arranged on the side of the second inorganic encapsulation layer 330 away from the light emitting structure layer 200, and the touch film layer 800 is arranged between the encapsulation layer 300 and the patterned layer 400. In this embodiment, the first inorganic encapsulation layer 310 and the second inorganic encapsulation layer 330 can be deposited and formed by CVD (Chemical Vapor Deposition), so in some embodiments, the first inorganic encapsulation layer 310 can be called CVD1, and the second inorganic encapsulation layer 330 can be called CVD2. The material of the second inorganic encapsulation layer 330 may be silicon nitride or silicon oxide, or a stacked film layer of silicon nitride and silicon oxide. Since silicon nitride or silicon oxide has good chemical stability and high light transmittance, the material of the second inorganic encapsulation layer 330 may be silicon nitride or silicon oxide. The first organic encapsulation layer 320 may be deposited by IJP (Ink-Jet Printing).

[0084] In this embodiment, Figure 1 On the basis of the display panel, the first black matrix 510 can be set between two adjacent patterned structures 410, and the touch film layer 800 is set on the side of the second inorganic encapsulation layer 330 away from the light-emitting structure layer 200, and the touch film layer 800 is set between the encapsulation layer 300 and the patterned layer 400. In this way, the distance between the light-emitting structure layer 200 and the first black matrix 510 can be increased, and through the high refractive index patterned layer 400, the light can be gathered toward the center of the pixel unit, which can increase the large-angle L-Decay.

[0085] like Figures 17 to 20 As shown, in some specific preparation processes, Fig.17 It is shown that the first inorganic encapsulation layer 310, the first organic encapsulation layer 320, and the second inorganic encapsulation layer 330 can be sequentially deposited on the side of the light emitting structure layer 200 away from the base substrate 100. Fig.18 The touch film layer 800 is formed on the encapsulation layer 300, and then Fig.19 The patterned layer 400 is formed on the touch film layer 800, the patterned structures 410 in the patterned layer 400 correspond to the pixel units of the light emitting structure layer 200 one by one, and a first black matrix 510 is formed between adjacent patterned structures 410. Fig. 20It is shown that a color filter 600 is covered on the patterned structure 410 , so that each color filter 600 will correspond to a pixel unit of the light emitting structure layer 200 one by one, thereby improving the light extraction efficiency of the display panel.

[0086] In some embodiments of the present application, the touch film layer 800 includes a first metal layer 810, a second metal layer 820 and an insulating layer 830, the insulating layer 830 is arranged between the first metal layer 810 and the second metal layer 820, and the display panel also includes a second planarization layer 840, and the second planarization layer 840 is arranged on the side of the insulating layer 830 away from the base substrate 100. In this embodiment, the first metal layer 810 usually forms a bridge key, that is, a bridge structure of touch control, and the second metal layer 820 forms Tx and Rx wiring, which can be a mesh structure. In order to reduce resistance, the first metal layer 810 and the second metal layer 820 can be double-layer wiring, and the two can be connected through vias. In the specific preparation process, the first metal layer 810 can be formed on the organic layer 700 first, then the insulating layer 830 can be formed, and finally the second metal layer 820 can be formed. In this embodiment, by setting the touch film layer 800, the display panel can be provided with a touch function. In addition, the display panel in this embodiment further includes a second planarization layer 840 . The second planarization layer 840 is located on a side of the insulating layer 830 away from the base substrate 100 , so as to prevent the touch film layer 800 from being exposed.

[0087] Please refer to Fig. 20 In some embodiments of the present application, a second gap 602 is formed between the plurality of color filters 600, and the display panel further includes a fourth black matrix 540, which is disposed in the second gap 602, and a portion of the fourth black matrix 540 covers the color filters 600 around the second gap 602. In this embodiment, the fourth black matrix 540 covers the color filters 600 around the second gap 602, thereby preventing light from being transmitted to the outside from the side of the color filter 600, that is, absorbing light at a large angle, thereby increasing the large-angle L-Decay of the display panel.

[0088] like Fig.21 As shown, in some embodiments of the present application, the material of the first black matrix 510 is an organic material. In this embodiment, the first black matrix 510 can be made of an organic material with a low refractive index, for example, the refractive index of the organic material can be 1.4 to 1.55.

[0089] In some specific embodiments, the display panel further includes a third planarization layer 910, and the third planarization layer 910 is disposed on a side of the color filter 600 away from the base substrate 100. In this embodiment, the third planarization layer 910 can prevent the color filter 600 from being exposed.

[0090] An embodiment of the second aspect of the present application provides a display device, comprising the display panel in any embodiment of the first aspect.

[0091] According to the display device in the embodiment of the present application, since it has the display panel in any embodiment of the first aspect, it also has the beneficial effects of any embodiment of the first aspect. Specifically, the display device in this embodiment is provided with a patterned structure 410 and a color filter 600 corresponding to the pixel unit of the display panel on the side away from the substrate 100, wherein the patterned structure 410 can be made of a material with a first refractive index, and the color filter 600 is made of a material with a second refractive index, and the second refractive index is less than the first refractive index, thereby forming a stacked structure with a refractive index difference, and the light emitted by the light emitting structure layer 200 can make the light converge toward the center of the pixel unit after passing through the patterned structure 410 and the color filter 600, thereby increasing the light extraction efficiency of the display panel. In addition, the first black matrix 510 is arranged between two adjacent patterned structures 410, and the projections of the first black matrix 510 and the patterned structure 410 on the substrate 100 do not overlap, so as to avoid sacrificing the light extraction at some angles, and further slow down the L-Decay at large angles.

[0092] It should be noted that the display device in this embodiment can be any product or component with a display function, such as an electronic paper, a mobile phone, a tablet computer, a television, a notebook computer, a digital photo frame, and a navigator.

[0093] It should be noted that in the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity of illustration. It is also understood that when an element or layer is referred to as being "on" another element or layer, it may be directly on the other element, or there may be an intermediate layer. In addition, it is understood that when an element or layer is referred to as being "under" another element or layer, it may be directly under the other element, or there may be more than one intermediate layer or element. In addition, it is also understood that when a layer or element is referred to as being "between" two layers or two elements, it may be the only layer between the two layers or two elements, or there may also be more than one intermediate layer or element. Similar reference numerals throughout the text indicate similar elements.

[0094] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0095] The various embodiments of the present application are described in a related manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0096] The above description is only a preferred embodiment of the present application and is not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. A display panel, characterized in that: include: substrate substrate; A light emitting structure layer, wherein the light emitting structure layer is disposed on one side of the base substrate, and the light emitting structure layer includes a plurality of pixel units; An encapsulation layer, wherein the encapsulation layer is arranged on a side of the light emitting structure layer away from the base substrate; A patterned layer, the patterned layer is arranged on a side of the encapsulation layer away from the substrate, the patterned layer comprises a plurality of patterned structures, the patterned structures correspond to the pixel units one by one, and the plurality of patterned structures have a first refractive index; A first black matrix, wherein the first black matrix is ​​located between two adjacent patterned structures; A plurality of color filters, the color filters cover the patterned structure, the colors of the color filters correspond to the colors of the pixel units one by one, and the color filters have a second refractive index, which is smaller than the first refractive index.

2. The display panel according to claim 1, characterized in that: The display panel further includes an organic layer, which is disposed on a side of the plurality of color filters and the first black matrix away from the base substrate, and has a third refractive index that is less than the second refractive index.

3. The display panel according to claim 2, characterized in that: The display panel further includes a touch film layer, which is arranged on a side of the organic layer away from the base substrate. The touch film layer includes a first metal layer, a second metal layer and an insulating layer, and the insulating layer is arranged between the first metal layer and the second metal layer.

4. The display panel according to claim 3, characterized in that: The projections of the first metal layer and the second metal layer on the base substrate are located within the projection of the first black matrix on the base substrate.

5. The display panel according to claim 4, characterized in that: The display panel includes a second black matrix, and the second black matrix is ​​arranged on a side of the second metal layer away from the base substrate.

6. The display panel according to claim 5, characterized in that: A first groove is formed on the surface of the organic layer, and a projection of the first groove on the base substrate overlaps at least partially with the first black matrix on the base substrate. The first metal layer and the second metal layer are arranged in the first groove, and the second black matrix located in the first groove covers the first metal layer.

7. The display panel according to claim 1, characterized in that: The thickness of the patterned layer is greater than the thickness of the color filter.

8. The display panel according to claim 1, characterized in that: The projection of the patterned structure on the base substrate covers the light emitting area of ​​the pixel unit.

9. The display panel according to claim 1, characterized in that: At least two first pattern structures are formed on a surface of the color filter away from the base substrate.

10. The display panel according to claim 2, characterized in that: At least two second pattern structures are formed on a surface of the organic layer away from the base substrate.

11. The display panel according to claim 3, characterized in that: A first gap is formed between adjacent color filters, the first black matrix is ​​arranged in the first gap, and a portion of the first black matrix covers the color filters around the first gap, and the display panel also includes a third black matrix, the third black matrix is ​​arranged on a side of the touch film layer away from the base substrate, and the projection of the third black matrix on the base substrate is located within the projection of the first black matrix on the base substrate.

12. The display panel according to claim 3, characterized in that: The display panel further includes a buffer layer, and the buffer layer is disposed between the touch film layer and the organic layer.

13. The display panel according to claim 1, characterized in that: The encapsulation layer includes a first inorganic encapsulation layer, a first organic encapsulation layer and a second inorganic encapsulation layer, the first inorganic encapsulation layer is arranged on a side of the light-emitting structure layer away from the base substrate, the patterned layer and the color filter are arranged on a side of the first inorganic encapsulation layer away from the base substrate, and the first organic encapsulation layer is arranged on a side of the patterned layer and the color filter away from the base substrate.

14. The display panel according to claim 1, characterized in that: The encapsulation layer includes a first inorganic encapsulation layer, a first organic encapsulation layer, and a second inorganic encapsulation layer stacked in sequence from a side close to the light-emitting structure layer. The display panel also includes a touch film layer, which is arranged on a side of the second inorganic encapsulation layer away from the light-emitting structure layer, and the touch film layer is arranged between the encapsulation layer and the patterned layer.

15. The display panel according to claim 14, characterized in that: The touch film layer includes a first metal layer, a second metal layer and an insulating layer, wherein the insulating layer is arranged between the first metal layer and the second metal layer. The display panel also includes a second planarization layer, which is arranged on a side of the insulating layer away from the base substrate.

16. The display panel according to claim 15, characterized in that: A second gap is formed between the plurality of color filters. The display panel further includes a fourth black matrix, which is disposed in the second gap, and a portion of the fourth black matrix covers the color filters around the second gap.

17. The display panel according to claim 16, characterized in that: The first black matrix is ​​made of organic material.

18. A display device, characterized in that: Comprising the display panel according to any one of claims 1 to 17.

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