CN115394816A - Display panel and display device - Google Patents

Abstract

Embodiments of the present application provide a display panel and a display device. The display panel includes a base substrate, a light emitting structure layer, a packaging 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 base substrate, and the light emitting structure layer includes a plurality of pixel units. The encapsulation layer is arranged on the side of the light emitting structure layer away from the base substrate. The patterned layer is disposed on the side of the encapsulation layer away from the base substrate, the patterned layer includes a plurality of patterned structures corresponding to the pixel units one by one, 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 colors of the color filter correspond to the colors of the pixel units one by one. The color filter has a second refractive index, and the second refractive index is smaller than the first refractive index.

Description

Display panel and display device

technical field

The present application relates to the field of display technology, in particular to a display panel and a display device.

Background technique

OLED (Organic Light-Emitting Diode, 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 vehicle display devices. In related technologies, the L-Decay (brightness attenuation) of the large viewing angle of the OLED display panel is too fast. In the case of a large viewing angle, due to the fast luminance decay, the screen seen by the human eye is not clear. How to slow down the L-Decay of the large viewing angle of the display panel? L-Decay is a problem that needs to be considered at present.

Contents of the invention

The purpose of the embodiments of the present application is to provide a display panel and a display device, so as to slow down the L-Decay of the large viewing angle of the display panel. The specific technical scheme is as follows:

Embodiments of the first aspect of the present application provide a display panel. The display panel includes a base substrate, a light-emitting structure layer, a packaging 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 base substrate, and the light emitting structure layer includes a plurality of pixel units. The encapsulation layer is arranged on the side of the light emitting structure layer away from the base substrate. The patterned layer is disposed on the side of the packaging layer away from the base substrate, the patterned layer includes a plurality of patterned structures corresponding to the pixel units one by one, 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 colors of the color filter correspond to the colors of the pixel units one by one. The color filter has a second refractive index, and the second refractive index is smaller than the first refractive index.

According to the display panel in the embodiment of the present application, the pixel unit of the display panel is provided with a one-to-one corresponding patterned structure and color filter on the side away from the base substrate, wherein the patterned structure can adopt the first refractive index The color filter uses a material with a second refractive index, and the second refractive index is smaller than the first refractive index, thus forming a stacked structure with a difference in refractive index, and the light emitted by the light-emitting structure layer is patterned and colored. After the optical 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 part of the angle of light output. In turn, L-Decay at large angles can be slowed down.

In addition, according to one of the embodiments of the present application, it may also have the following technical features:

In some embodiments of the present application, the display panel further includes an organic layer, and the organic layer is disposed on a side of the plurality of color filters and the first black matrix away from the base substrate, so The organic layer has a third refractive index which is smaller than the second refractive index.

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

In some embodiments of the present application, 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.

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

In some embodiments of the present application, a first groove is formed on the surface of the organic layer, and the projection of the first groove on the substrate is the same as that of the first black matrix on the substrate. At least part of the substrate overlaps, the first metal layer and the second metal layer are disposed in the first trench, and the second black matrix located in the first trench covers the first a metal layer.

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

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.

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

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

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 part of the first black matrix covers The color filter around the first gap, the display panel further includes a third black matrix, the third black matrix is arranged on the 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.

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

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, and the first inorganic encapsulation layer is disposed on the light-emitting structure layer away from the substrate. One side of the base substrate, the patterned layer and the color filter are arranged on the side of the first inorganic encapsulation layer away from the base substrate, the first organic encapsulation layer is arranged on the patterned layer and the side of the color filter away from the base substrate.

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 It also includes a touch film layer, the touch film layer is arranged on the 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 between layers.

In some embodiments of the present application, the touch film layer includes a first metal layer, a second metal layer and an insulating layer, and the insulating layer is disposed between the first metal layer and the second metal layer The display panel further includes a second planarization layer, and the second planarization layer is disposed on a side of the insulating layer away from the base substrate.

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, and the fourth black matrix is arranged in the second gap , and a part of the fourth black matrix covers the color filter around the second gap.

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

The embodiment of the second aspect of the present application provides a display device, including the display panel in any embodiment of the first aspect.

According to the display device in the embodiment of the present application, because it has the display panel in any one of the embodiments of the first aspect, it also has the beneficial effect of any one of the embodiments of the first aspect, which will not be repeated here.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present application, and those skilled in the art can also obtain other embodiments according to these drawings.

FIG. 1 is a schematic structural diagram of a display panel in an embodiment of the present application;

Fig. 2 is a schematic structural view of the preparation of the display panel in one of the embodiments of the present application (preparation of the light-emitting structure layer);

Fig. 3 is a structural schematic diagram (preparation of a patterned layer) of the display panel in one of the embodiments of the present application;

FIG. 4 is a schematic structural view of the display panel in one of the embodiments of the present application (preparation of color filters and the first black matrix);

Fig. 5 is a schematic structural view (preparation of the organic layer) of the display panel in one of the embodiments of the present application;

Fig. 6 is a structural schematic diagram (preparation of a buffer layer) of the display panel in one of the embodiments of the present application;

FIG. 7 is a schematic structural view of the preparation of the display panel in one of the embodiments of the present application (preparation of the touch film layer);

FIG. 8 is a schematic structural view of the display panel in one of the embodiments of the present application (preparation of the second black matrix);

FIG. 9 is a schematic structural view of the display panel in one embodiment of the present application (preparation of the first flat layer);

10 is a schematic structural view of the touch film layer of the display panel in the first embodiment of the present application;

11 is a schematic structural view of the touch film layer of the display panel in the second embodiment of the present application;

FIG. 12 is a schematic structural diagram of a display panel in another embodiment of the present application;

FIG. 13 is a schematic structural diagram of a display panel in another embodiment of the present application;

FIG. 14 is a schematic structural diagram of a display panel in another embodiment of the present application;

FIG. 15 is a schematic structural diagram of a display panel in another embodiment of the present application;

FIG. 16 is a schematic structural diagram of a display panel in another embodiment of the present application;

FIG. 17 is a schematic structural view of preparing a display panel in another embodiment of the present application (preparation of an encapsulation layer);

FIG. 18 is a schematic structural view of preparing a display panel in another embodiment of the present application (preparing a touch film layer);

FIG. 19 is a schematic structural view of preparing a display panel in another embodiment of the present application (preparing color filters and a first black matrix);

FIG. 20 is a schematic structural view of preparing a display panel in another embodiment of the present application (preparing a fourth black matrix);

FIG. 21 is a schematic structural view of preparing a display panel in another embodiment of the present application (preparation of a third planarization layer).

The reference signs are as follows:

100-substrate substrate; 110-barrier layer;

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

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

400-patterned layer; 410-patterned structure;

510-the first black matrix; 520-the second black matrix; 530-the third black matrix; 540-the fourth black matrix;

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

700-organic layer; 701-first trench; 702-second pattern structure; 710-buffer layer;

800-touch film layer; 810-first metal layer; 820-second metal layer; 830-insulating layer; 840-second planarization layer;

900—first planarization layer; 910—third planarization layer.

Detailed ways

In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or related technologies. Obviously, the accompanying drawings in the following description are only For some embodiments of the application, those skilled in the art can also obtain other embodiments according to these drawings.

For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature as shown in the figures with respect to another element or feature, such as "inner", "outer", "inner". ", "Outside", "Below", "Below", "Above", "Above", etc. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.

The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art based on this application belong to the scope of protection of this application.

As shown in FIG. 1 , the embodiment of the first aspect of the present application proposes a display panel. The display panel includes a base 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 disposed on one side of the base substrate 100, and the light emitting structure layer 200 includes a plurality of pixel units. The encapsulation layer 300 is disposed on a side of the light emitting structure layer 200 away from the base substrate 100 . The patterned layer 400 is arranged on the side of the encapsulation layer 300 away from the base substrate 100, the patterned layer 400 includes a plurality of patterned structures 410, the patterned structures 410 correspond to the pixel units one by one, and the patterned structures 410 have a first a 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 to the color of the pixel unit one by one. The color filter 600 has a second refractive index, and the second refractive index is smaller than the first refractive index.

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 provided on the side away from the base substrate 100, wherein the patterned structure 410 can adopt The material of the first refractive index, the color filter 600 adopts the material of the second refractive index, and the second refractive index is smaller than the first refractive index, thereby forming a laminated structure with a difference in refractive index, the light emitted by the light emitting structure layer 200 After 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 extraction efficiency of the display panel. The first black matrix 510 is arranged between two adjacent patterned structures 410, In this way, it is possible to avoid sacrificing part of the angle of light output, and thus slow down the L-Decay of large angles.

In some specific embodiments of the present application, the light-emitting structure layer 200 may include light-emitting structures of multiple colors, for example: green light-emitting structures 210, red light-emitting structures 220, and blue light-emitting structures 230, and the color filter 600 includes green light-emitting structures sheet 610, red filter 620 and blue filter 630. The first black matrix 510 is a BM (Black Matrix, black matrix), which is arranged between two adjacent patterned structures 410 . The first black matrix 510 itself can be used to block light and avoid mutual interference of light of different colors. When the first black matrix 510 is arranged between two adjacent patterned structures 410, and the first black matrix 510 and the patterned structure When the projections of the base substrate 100 do not overlap, the 410 can avoid sacrificing part of the angle of the light output, and can slow down the L-Decay of the large angle.

In some specific preparation processes, the process of manufacturing a display panel may include:

As shown in FIGS. 2 to 4, FIG. 2 shows that a barrier layer 110 can be formed on the base substrate 100 first, and then the light emitting structure layer 200 is formed on the barrier layer 110, and the light emitting structure layer 200 is far away from the substrate. An encapsulation layer 300 is formed on one side of the substrate 100, and then FIG. 3 shows that a patterned layer 400 is formed on the encapsulation layer 300, and each patterned structure 410 in the patterned layer 400 is aligned with the pixel unit of the light emitting structure layer 200 one by one. Correspondingly, FIG. 4 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 a CF (Color Filter, color filter), and each color filter 600 also corresponds to the pixel unit of the light emitting structure layer 200, so as to improve the light extraction efficiency of the display panel.

As shown in FIG. 5, in some embodiments of the present application, the display panel further includes an organic layer 700, and the organic layer 700 is disposed on a side away from the base substrate 100 of the plurality of color filters 600 and the first black matrix 510, The organic layer 700 has a third refractive index which is smaller than the second refractive index. In this embodiment, the organic layer 700 may be made of a material with a relatively low water vapor transmission rate, so as to avoid water vapor erosion on the light emitting structure layer 200 . Since the organic layer 700 is disposed on the side of the color filter 600 away from the base substrate 100, and the organic layer 700 uses a material with a third refractive index, the third refractive index is smaller than the second refractive index, and the second refractive index is smaller 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 of various different refractive indices. In related technologies, when the light-emitting structure layer 200 emits light, the light will exit in multiple directions, and some of the light will be directed to the side of the light-emitting structure layer 200, and the light emitted from the side of the light-emitting layer structure 200 will cause part of the light to be emitted by the second A black matrix 510 absorbs and cannot emit light from the light emitting surface of the display panel, which undoubtedly causes a certain amount of light loss. In this embodiment, since the patterned structure 410, the color filter 600, and the organic layer 700 form a laminated structure with different refractive indices, even if there is a side surface of the light-emitting structure layer 200, it is possible to pass through each layer on it. The difference in the refractive index of the layers makes the side light output refracted into the front light output, thereby increasing the front light output efficiency of the light emitting structure layer 200 . In addition, in this 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 output. .

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. Exemplarily, when the first refractive index When the index is 1.7 and the second index of refraction can be 1.5, the value range of the third index of refraction is greater than or equal to 1.4 and less than 1.5. When the first index of refraction is 1.7 and the second index of refraction is 1.55, the range of the third index of refraction is The value range is greater than or equal to 1.4 and less than 1.55, that is to say, the value range of the third refractive index is related to the second refractive index, and the third refractive index must be smaller than the second refractive index, so that the patterned structure 410, The stacked structure formed by the color filter 600 and the organic layer 700 has a difference in refractive index to slow down L-Decay at a large angle.

As shown in FIG. 6 , FIG. 7 and FIG. 10 , in some embodiments of the present application, the display panel further includes a touch film layer 800 , and the touch film layer 800 is disposed on a side of the organic layer 700 away from the base substrate 100 , 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 may be called a TMA layer (Touch Metal A, touch layer A), the second metal layer 820 may be called a TMB (Touch Metal B, touch layer B), and the insulating layer 830 Also known as the TLD layer (Touch Insulation Layer Dielectric, touch insulation layer), usually the first metal layer 810 forms a bridge key, that is, the bridge (bridge) structure of the touch, and the second metal layer 820 forms the Tx (transmit or send touch signal) and Rx (receive touch signal) routing, which can be a mesh (mesh) structure. In order to reduce the resistance, the first metal layer 810 and the second metal layer 820 can be two-layer wires, and the two can be connected through via holes. In a specific preparation process, the first metal layer 810 may be formed on the organic layer 700 first, then the insulating layer 830 may be formed, and finally the second metal layer 820 may be formed. In this embodiment, by disposing the touch film layer 800 , the display panel can be equipped with a touch function.

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 impact 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.

In addition, in some specific embodiments, the material of the insulating layer 830 can be silicon nitride, which can prevent the intrusion of water and oxygen while insulating, and increase the packaging reliability of the display panel. The material of the insulating layer 830 can also be It can be an organic material, which can further shield the influence on the cathode in the display panel.

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 metal reflections can be prevented from affecting light output from the display panel.

As shown in FIG. 8 , in some embodiments of the present application, the display panel includes a second black matrix 520 , and the second black matrix 520 is disposed 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 the side of the second metal layer 820 away from the base substrate 100 , it is possible to prevent the metal from reflecting light and reduce the reflectivity in the dark state, thereby avoiding the reflection of the second metal layer 820 on the The light emitted from the display panel is affected.

In some specific embodiments, when the material of the second metal layer 820 is black wire, the second black matrix 520 may not be provided, which can simplify the process. Of course, in some embodiments, when the second metal layer 820 is made of black wires, the second black matrix 520 may also be provided, which is not specifically limited in this application.

As shown in FIG. 5, FIG. 10 and FIG. 11, 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 is the same as the first black The matrix 510 overlaps at least part of the base substrate 100, the first metal layer 810 and the second metal layer 820 are disposed in the first groove 701, and the second black matrix 520 located in the first groove 701 covers the first metal layer 810 . As shown in FIG. 10, in a specific embodiment, FIG. 10 shows a schematic structural diagram of a first embodiment of the touch film layer 800 located in the first groove 701. During the specific preparation process, the First, the first metal layer 810 is formed in the first trench 701, and then, the insulating layer 830 is formed on the first metal layer 810, and then the second metal layer 820 can be formed on the insulating layer 830, and finally the second black matrix 520 covers 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 shows a schematic structural diagram of a second embodiment of the touch film layer 800 located in the first groove 701 . In a specific preparation process, the first metal layer 810 can be formed in the first trench 701 first, and then a patterned insulating layer 830 can be formed on the first metal layer 810, and the insulating layer 830 can only cover the first metal layer 810. metal layer 810, and avoid the formation of insulating layer 830 in the rest of the first trench 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. on layer 830. Compared with the first embodiment, the insulating layer 830 in the second embodiment is not integrally formed, and the insulating layer 830 in the first trench 701 has a break with another part of the insulating layer 830, so when the second metal layer After the second black matrix 520 is formed on 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.

As shown in FIG. 12 , 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, on the basis of the display panel in FIG. 1 , after the color filter 600 is formed, protrusions or grooves may 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 scatter the light from the front and transmit the light in multiple directions, thereby further slowing down the light emission. Large angle L-Decay. However, for the display panel manufactured in this way, since the front light will be scattered by the first pattern structure 640, a part of the light will be emitted to the side. Although this can slow down the L-Decay at a large angle, the light emitted to the side is easy to Reflecting back and forth inside the display panel reduces the overall light output of the display panel and sacrifices part of the light output. Therefore, it can be decided according to the specific design requirements whether to adopt this method to slow down the L-Decay at large angles.

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

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.

As shown in FIG. 13 , 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, on the basis of the display panel shown in FIG. 1 , after the organic layer 700 is formed, protrusions or grooves may be formed on the surface of the organic layer 700 away from the base substrate 100 . These protrusions or The groove 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 break up the light emitted from the front, so that the light can be transmitted in multiple directions, thereby further slowing down the large-angle L -Decay. However, for the display panel manufactured in this way, since the front light will be scattered by the first pattern structure 640, a part of the light will be emitted to the side. Although this can slow down the L-Decay at a large angle, the light emitted to the side is easy to Reflecting back and forth inside the display panel will reduce the overall light output of the display panel and sacrifice part of the light output of the display panel. Therefore, it can be decided whether to adopt this method to slow down the L-Decay at large angles according to specific design requirements.

As shown in Figure 14, in some embodiments of the present application, a first gap 601 is formed between a plurality of color filters 600, the first black matrix 510 is arranged in the first gap 601, and a part of the first black matrix 510 covers the color filter 600 around the first gap 601, the display panel also includes a third black matrix 530, the third black matrix 530 is arranged on the side of the touch film layer 800 away from the base substrate 100, and the third black matrix The projection of 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, on the basis of the display panel in FIG. 1 , the first black matrix 510 can be arranged in the first gap 601, and a part of the first black matrix 510 covers the color filter 600 around the first gap 601. In this way, 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, this embodiment is also provided with a third black matrix 530. 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, it is possible to Further increase the large angle of L-Decay. In a specific application scenario, the display panel can be applied to a vehicle-mounted display device. However, when driving at night, the light emitted by the vehicle-mounted display device is easily projected onto the front windshield. The picture will affect the driving line of sight and cause certain safety hazards. The display panel in this embodiment can block the light at a part of the angle to increase the L-Decay at a large angle through the first black matrix 510 and the third black matrix 530. In this way, by reducing the angle of the outgoing light of the display panel, excessive The light is projected onto the front windshield, reducing the impact of the image projected on the front windshield on the driving line of sight.

Combining the above embodiments, it can be seen that by using the display panel provided by the embodiment of the present application, the L-Decay of a large angle can be increased as required, and the L-Decay of a large angle can be slowed down as required. The difference between increasing or slowing down the large-angle L-Decay mainly lies in that in the display panel of the large-angle L-Decay, among the light emitted by the light-emitting structure layer 200, the light emitted from the side is absorbed by the third black matrix 530, thereby reducing the large-angle L-Decay. Angle of light. However, the third black matrix 530 is not provided in the L-Decay display panel that slows down the large angle, so the light emitted from the side of the light emitting structure layer 200 can be emitted normally.

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

As shown in FIG. 9 , in some specific embodiments of the present application, the display panel further includes a first planarization layer 900 , and the first planarization layer 900 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.

As shown in Figure 15, 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, and the first inorganic encapsulation layer 310 is arranged on the light emitting structure The layer 200 is away from the side of the base substrate 100, the patterned layer 400 and the color filter 600 are arranged on the side of the first inorganic encapsulation layer 310 away from the base substrate 100, and the first organic encapsulation layer 320 is arranged on the patterned layer 400 and the side of the color filter 600 away from the base substrate 100 . In this embodiment, the patterned layer 400 and the color filter 600 are disposed between the first inorganic encapsulation layer 310 and the first organic encapsulation layer 320 . In a 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 patterned layer 400 and the color filter 600 to form a first organic encapsulation layer 320 and a second inorganic encapsulation layer 330 , and finally a touch film layer 800 is formed on the second inorganic encapsulation layer 330 . In related technologies, when the patterned layer 400 is a material with a high refractive index, since the surface reflectance of the high refractive index material is higher than that of a low refractive index material, it is easy to cause an increase in the dark state reflectance of the EES structure and the COE structure stack. Applying to place 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 packaging layer 310. Forming the first organic encapsulation layer 320 and the second inorganic encapsulation layer 330 on the chemical layer 400 and the touch film layer 800 can ensure the reliability of the light emitting structure layer 200 .

As shown in FIG. 16 , 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 stacked in sequence from the side close to the light emitting structure layer 200 . layer 330, the display panel further includes a touch film layer 800, the touch film layer 800 is disposed 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 disposed on the encapsulation layer 300 and the patterned layer Between 400. In this embodiment, both the first inorganic encapsulation layer 310 and the second inorganic encapsulation layer 330 can be deposited and formed by CVD (Chemical Vapor Deposition, chemical vapor deposition), so in some embodiments, the first inorganic encapsulation layer 310 It may be called CVD1, and the second inorganic encapsulation layer 330 may be called CVD2. Wherein, the material of the second inorganic encapsulation layer 330 can be silicon nitride or silicon oxide, and can also be a stacked film layer of silicon nitride and silicon oxide. Since both silicon nitride and silicon oxide have good chemical stability , and the light transmittance is also high, therefore, the material of the second inorganic encapsulation layer 330 can be silicon nitride or silicon oxide. The first organic encapsulation layer 320 can be deposited and formed by IJP (Ink-Jet Printing, ink-jet printing).

In this embodiment, on the basis of the display panel in FIG. 1, the first black matrix 510 can be arranged between two adjacent patterned structures 410, and the touch film layer 800 can be arranged on the second inorganic encapsulation layer 330 away from the side of the light emitting structure layer 200, and the touch film layer 800 is disposed between the encapsulation layer 300 and the patterned layer 400, so that the distance between the light emitting structure layer 200 and the first black matrix 510 can be increased, and Through the patterned layer 400 with a high refractive index, the light can be gathered toward the center of the pixel unit, which can increase the L-Decay at a large angle.

As shown in FIGS. 17 to 20, in some specific preparation processes, FIG. 17 shows that the first inorganic encapsulation layer 310, the first organic encapsulation layer 310, and the first organic encapsulation layer can be sequentially deposited on the side of the light emitting structure layer 200 away from the base substrate 100. layer 320, the second inorganic encapsulation layer 330. Next, Figure 18 shows the formation of a touch film layer 800 on the encapsulation layer 300, and then Figure 19 shows the formation of a patterned layer 400 on the touch film layer 800, the patterned structure 410 and the light emitting structure in the patterned layer 400 The pixel units of the layer 200 are in one-to-one correspondence, and a first black matrix 510 is formed between adjacent patterned structures 410. Finally, FIG. 20 shows that a color filter 600 is covered on the patterned structure 410, so that each color The filter 600 also corresponds to the pixel units of the light emitting structure layer 200 one by one, so as to improve the light extraction efficiency of the display panel.

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, and the insulating layer 830 is disposed between the first metal layer 810 and the second metal layer 820, The display panel further includes a second planarization layer 840 , and the second planarization layer 840 is disposed on a side of the insulating layer 830 away from the base substrate 100 . In this embodiment, usually the first metal layer 810 forms a bridge key, that is, a touch bridge structure, and the second metal layer 820 forms Tx and Rx wiring, which may be a mesh structure. In order to reduce the resistance, the first metal layer 810 and the second metal layer 820 can be two-layer wires, and the two can be connected through via holes. In a specific preparation process, the first metal layer 810 may be formed on the organic layer 700 first, then the insulating layer 830 may be formed, and finally the second metal layer 820 may be formed. In this embodiment, by disposing the touch film layer 800 , the display panel can be equipped with a touch function. In addition, the display panel in this embodiment further includes a second planarization layer 840 , and 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.

Please refer to FIG. 20, in some embodiments of the present application, a second gap 602 is formed between a plurality of color filters 600, and the display panel further includes a fourth black matrix 540, and the fourth black matrix 540 is arranged in the second gap 602 , and a part of the fourth black matrix 540 covers the color filter 600 around the second gap 602 . In this embodiment, the fourth black matrix 540 covers the color filter 600 around the second gap 602, so as to prevent light from being transmitted from the side of the color filter 600 to the outside, that is to say, it can absorb light from a large angle. Light is emitted, so that the large-angle L-Decay of the display panel can be increased.

As shown in FIG. 21 , 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 may be made of organic material with a low refractive index, for example, the organic material may have a refractive index of 1.4 to 1.55.

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.

The embodiment of the second aspect of the present application provides a display device, including the display panel in any embodiment of the first aspect.

According to the display device in the embodiment of the present application, since it is equipped with the display panel in any embodiment of the first aspect, it also has the beneficial effect of any embodiment of the first aspect. Specifically, the display device in this embodiment is provided with a one-to-one corresponding patterned structure 410 and color filter 600 on the side of the pixel unit of the display panel away from the base substrate 100, wherein the patterned structure 410 can be The material with the first refractive index is used, the color filter 600 uses the material with the second refractive index, and the second refractive index is smaller than the first refractive index, thereby forming a laminated structure with a difference in refractive index, and the light emitted by the light emitting structure layer 200 After the light passes through the patterned structure 410 and the color filter 600, the light can be concentrated toward the center of the pixel unit, thereby increasing the light extraction efficiency of the display panel. In addition, the first black matrix 510 is disposed between two adjacent patterned structures 410, and the projections of the first black matrix 510 and the patterned structures 410 on the base substrate 100 do not overlap, thereby avoiding sacrificing part of the angle. Light is emitted, which can further slow down L-Decay at large angles.

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, or a navigator.

It should be noted that in the drawings, the dimensions of layers and regions may be exaggerated for clarity of illustration. Also it will be understood that when an element or layer is referred to as being "on" another element or layer, it can be directly on the other element or intervening layers may be present. Further, it will be understood that when an element or layer is referred to as being "under" another element or layer, it can be directly under the other element, or one or more intervening layers or elements may be present. In addition, it will also be understood that when a layer or element is referred to as being "between" two layers or elements, it can be the only layer between the two layers or elements, or one or more intervening layers may also be present. or components. Like reference numerals designate like elements throughout.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

Each embodiment of the present application is described in a related manner, the same and similar parts of each embodiment can be referred to each other, and each embodiment focuses on the difference from other embodiments.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application are included within the protection scope of this application.

Claims (18)

1. A display panel, characterized in that, comprising: Substrate substrate; A light-emitting structure layer, the light-emitting structure layer is arranged on one side of the base substrate, and the light-emitting structure layer includes a plurality of pixel units; an encapsulation layer, the encapsulation layer is disposed on a side of the light-emitting structure layer away from the base substrate; a patterned layer, the patterned layer is disposed on the side of the packaging layer away from the base substrate, the patterned layer includes a plurality of patterned structures, and the patterned structures correspond to the pixel units one by one , a plurality of said patterned structures have a first refractive index; a first black matrix, the first black matrix is located between two adjacent patterned structures; a plurality of color filters, the color filters cover the patterned structure, and the colors of the color filters correspond to the colors of the pixel units one by one, and the color filters have a second refraction index, the second index of refraction is smaller than the first index of refraction. 2. The display panel according to claim 1, wherein the display panel further comprises an organic layer, and the organic layer is disposed on a plurality of the color filters and the first black matrix away from the substrate. On one side of the base substrate, the organic layer has a third refractive index, and the third refractive index is smaller than the second refractive index. 3. The display panel according to claim 2, wherein the display panel further comprises a touch film layer, and the touch film layer is arranged on a side of the organic layer away from the base substrate, so that 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, wherein the projections of the first metal layer and the second metal layer on the base substrate are located on the base substrate of the first black matrix. within the projection. 5 . The display panel according to claim 4 , wherein the display panel comprises a second black matrix, and the second black matrix is disposed on a side of the second metal layer away from the base substrate. 6. The display panel according to claim 5, wherein a first groove is formed on the surface of the organic layer, and the projection of the first groove on the base substrate and the first black matrix Overlapping at least part of the base substrate, the first metal layer and the second metal layer are disposed in the first groove, and the second black matrix located in the first groove covering the first metal layer. 7. The display panel according to claim 1, wherein the thickness of the patterned layer is greater than the thickness of the color filter. 8 . The display panel according to claim 1 , wherein 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, wherein 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 , wherein at least two second pattern structures are formed on the surface of the organic layer away from the base substrate. 11 . 11. The display panel according to claim 3, wherein a first gap is formed between adjacent color filters, the first black matrix is arranged in the first gap, and a part of The first black matrix covers the color filter around the first gap, and the display panel further includes a third black matrix, and the third black matrix is arranged on the touch film layer away from the substrate. One side of 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, further comprising a buffer layer, the buffer layer being disposed between the touch film layer and the organic layer. 13. The display panel according to claim 1, wherein the encapsulation layer comprises a first inorganic encapsulation layer, a first organic encapsulation layer and a second inorganic encapsulation layer, and the first inorganic encapsulation layer is arranged on the The light-emitting structure layer is away from the side of the base substrate, the patterned layer and the color filter are arranged on the side of the first inorganic packaging layer away from the base substrate, and the first organic package A layer is disposed on a side of the patterned layer and the color filter away from the base substrate. 14. The display panel according to claim 1, wherein the encapsulation layer comprises 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. encapsulation layer, the display panel further includes a touch film layer, the touch film layer is arranged on the side of the second inorganic encapsulation layer away from the light-emitting structure layer, and the touch film layer is arranged on the between the encapsulation layer and the patterned layer. 15. The display panel according to claim 14, wherein the touch film layer comprises 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 first metal layer. Between the second metal layer, the display panel further includes a second planarization layer, and the second planarization layer is disposed on a side of the insulating layer away from the base substrate. 16. The display panel according to claim 15, wherein a second gap is formed between a plurality of the color filters, the display panel further comprises a fourth black matrix, and the fourth black matrix is set In the second gap, a part of the fourth black matrix covers the color filter around the second gap. 17. The display panel according to claim 16, wherein the material of the first black matrix is an organic material. 18. A display device, comprising the display panel according to any one of claims 1-17.

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