Display panel, manufacturing method of display panel, and display device

Abstract

Embodiments of the present application provide a display panel, a manufacturing method of the display panel and a display device. The display panel comprises a substrate, a plurality of pixel units, an encapsulation layer, a first touch layer, a black matrix layer, a color film layer and a second touch layer. The encapsulation layer is arranged on a side of the plurality of pixel units away from the substrate. The first touch layer is arranged on a side of the encapsulation layer away from the substrate. The black matrix layer is arranged on a side of the encapsulation layer away from the substrate, and the black matrix layer comprises a plurality of first openings arranged at intervals. The color film layer is arranged on a side of the encapsulation layer away from the substrate, and the color film layer comprises a plurality of color resistance blocks filling the plurality of first openings. The second touch layer comprises a touch part and a plurality of reflection parts. The touch part is connected with the first touch layer through a first via. The reflection part is arranged between a side wall of the first opening and the color resistance block. The reflection part is configured to reflect light incident on the reflection part, so that part of the reflected light is incident on the plurality of color resistance blocks.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display panel, a manufacturing method of the display panel and a display device. BACKGROUND

[0002] OLED (Organic Light Emitting Display) is widely used in display devices such as mobile phones, tablets and televisions due to its advantages of self-emission, high emission brightness, high resolution, wide viewing angle, fast response speed and flexibility. In the related art, in order to reduce the thickness of the OLED display panel and reduce the influence of the external touch substrate and the light filtering assembly on the flexibility of the OLED display panel, the OLED display panel is usually combined with FMLOC (Flexible Multi-Layer On Cell) and COE (Color Filter on Encapsulation) to realize the touch and light filtering performance of the display panel. The FMLOC is to manufacture a metal mesh electrode layer on the encapsulation layer of the OLED display panel to realize the touch control of the display panel, and the COE is to manufacture a color filter directly on the encapsulation layer of the OLED display panel to replace a polarizing plate to realize the light filtering color display function.

[0003] The COE includes a color film layer and a black matrix layer, and the color film layer includes a plurality of color resistance blocks. Since the black matrix layer is a non-transparent layer and has strong light absorption performance, when the light in the OLED display panel is transmitted to the black matrix layer, the light is absorbed by the black matrix layer, which affects the light output rate of the OLED display panel and reduces the display brightness and contrast of the OLED display panel. In order to ensure the light output rate of the OLED display panel, the power consumption of the OLED display panel needs to be increased. SUMMARY

[0004] The purpose of the embodiments of the present application is to provide a display panel, a manufacturing method of the display panel and a display device to improve the light output rate of the display panel, improve the display brightness and contrast of the display panel, and reduce the power consumption of the display panel. The specific technical solutions are as follows:

[0005] The embodiments of the first aspect of the present application provide a display panel, which comprises:

[0006] a substrate and a plurality of pixel units arranged in a matrix on the substrate;

[0007] an encapsulation layer, which is arranged on a side of the plurality of pixel units away from the substrate and covers the plurality of pixel units;

[0008] A first touch layer is disposed on a side of the encapsulation layer away from the substrate.

[0009] A black matrix layer is disposed on a side of the encapsulation layer away from the substrate, and the black matrix layer comprises a plurality of first openings arranged at intervals.

[0010] A color film layer is disposed on a side of the encapsulation layer away from the substrate, and the color film layer comprises a plurality of color resistance blocks arranged corresponding to the plurality of pixel units, and the plurality of color resistance blocks fill the plurality of first openings.

[0011] A second touch layer comprises a touch portion and a plurality of reflection portions, the touch portion is disposed on a side of the black matrix layer away from the encapsulation layer, the black matrix layer is provided with a first via, the touch portion is connected with the first touch layer through the first via, and the reflection portion is disposed between the side wall of the first opening and the color resistance block, and the reflection portion is configured to reflect light incident on the reflection portion, so that part of the reflected light is incident on the plurality of color resistance blocks.

[0012] In some embodiments, the display panel further comprises a first OC layer disposed between the encapsulation layer and the first touch layer.

[0013] In some embodiments, the display panel further comprises a cover plate and a second OC layer, the second OC layer is disposed on a side of the second touch layer away from the encapsulation layer, and the cover plate is disposed on a side of the second OC layer away from the second touch layer.

[0014] In some embodiments, the refractive index of the first OC layer is 1.6 to 1.9, and the refractive index of the second OC layer is 1.6 to 1.9.

[0015] In some embodiments, the first touch layer is a bridge layer, and the second touch layer is a touch pattern layer; or the first touch layer is a touch pattern layer, and the second touch layer is a bridge layer.

[0016] In some embodiments, each reflection portion comprises a plurality of reflection surfaces arranged obliquely, and the plurality of reflection surfaces gradually approach in a direction toward the substrate.

[0017] In some embodiments, a pixel unit comprises a transistor and a light emitting unit electrically connected with the transistor, and a plurality of light emitting units included in the plurality of pixel units are arranged corresponding to the plurality of color resistance blocks.

[0018] The light emitting unit comprises an anode layer, an organic light emitting layer and a cathode layer arranged in sequence on a side away from the substrate.

[0019] The transistor comprises an active layer on one side of the substrate, a first gate insulating layer, a gate metal layer, and a source-drain metal layer, the gate metal layer comprises a gate, the source-drain metal layer comprises a source and a drain, the anode layer is electrically connected with the drain through a via, and the source and the drain are connected with the active layer through a via.

[0020] Embodiments of the second aspect of the application provide a manufacturing method of a display panel, the manufacturing method comprising:

[0021] A substrate is provided.

[0022] A plurality of pixel units in a matrix distribution are formed on the substrate.

[0023] A packaging layer is formed on the plurality of pixel units, and the packaging layer covers the plurality of pixel units.

[0024] A first touch layer is formed on the packaging layer.

[0025] A black matrix layer is formed on the packaging layer.

[0026] The black matrix layer is patterned by a first mask to form a plurality of first openings and a first via in a spaced arrangement.

[0027] A second touch layer is formed on the black matrix layer.

[0028] The second touch layer is patterned by a second mask to form a touch part and a plurality of reflection parts, the touch part is connected with the first touch layer through the first via, and the reflection parts are arranged on inner walls of the first openings.

[0029] A color film layer is formed on the packaging layer, the color film layer comprises a plurality of color resistance blocks arranged corresponding to the plurality of pixel units, the plurality of color resistance blocks fill the plurality of first openings, and the reflection parts are configured to reflect light incident on the reflection parts, so that part of the reflected light is incident on the plurality of color resistance blocks.

[0030] In some embodiments, before the black matrix layer is formed on the packaging layer, the manufacturing method further comprises: coating a first OC layer on the packaging layer.

[0031] After the color film layer is formed on the packaging layer, the manufacturing method further comprises: coating a second OC layer on the black matrix layer and the color film layer.

[0032] Embodiments of the third aspect of the application provide a display device, the display device comprising the display panel of any one of the above.

[0033] Embodiments of the application have the following beneficial effects:

[0034] In the display panel provided by the embodiments of the present application, the second touch layer includes a touch part and a plurality of reflection parts. The touch part is arranged on the black matrix layer, and the reflection part is arranged between the sidewall of the first opening and the color resistance block arranged in the first opening. The reflection part covers at least part of the sidewall of the first opening. When the light emitted by the plurality of pixel units is transmitted to the sidewall of the first opening, the reflection part can reflect the light, so that the reflected light is transmitted to the color resistance block, and then transmitted to the outside of the display panel through the color resistance block. The reflection part can reduce the probability of the light being transmitted to the black matrix layer through the sidewall of the first opening, reduce the light absorption rate of the black matrix layer, improve the light extraction rate of the display panel, improve the display brightness and contrast of the display panel, and reduce the power consumption of the display panel. In addition, a plurality of first vias are arranged on the black matrix layer, and the touch part of the second touch layer can be electrically connected to the first touch layer through the first via. The black matrix layer can be used as an insulating layer between the first touch layer and the second touch layer, and an insulating layer does not need to be arranged between the first touch layer and the second touch layer, so that the thickness and the process complexity of the display panel can be reduced.

[0035] Of course, implementing any product or method of the present application does not necessarily require all the advantages described above to be achieved at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other embodiments can also be obtained by those skilled in the art based on these drawings.

[0037] Figure 1 FIG. 1 is a structural schematic diagram of a display panel in some embodiments of the present application;

[0038] Figure 2 FIG. 2 is a sectional view along direction A-A in the display panel shown in FIG. 1; Figure 1

[0039] Figure 3 FIG. 3 is another sectional view along direction A-A in the display panel shown in FIG. 1; Figure 1

[0040] Figure 4 FIG. 4 is a method flow chart of a manufacturing method of a display panel in some embodiments of the present application;

[0041] Figure 5 FIG. 5 is a process flow chart of a manufacturing method of a display panel in some embodiments of the present application. DETAILED DESCRIPTION

[0042] ​​The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art based on the present application belong to the scope of protection of the present application.

[0043] It should be understood that the terms used herein are for the purpose of describing particular example embodiments only and are not intended to be limiting. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and the like are to be construed to be inclusive (i.e., to include both instances of the terms and instances of the terms in which the term is excluded) unless otherwise indicated (e.g., as in "only X comprises Y"). The methods described herein can be implemented in a number of ways. Embodiments of the application described herein can be directed to computer programs embodied on a computer readable medium, comprising steps that can be executed by a computer.

[0044] Although the terms first, second, third, and the like can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can be only used to differentiate one element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first," "second," and the like are used herein to describe a variety of elements, components, regions, layers and / or sections, and do not imply an order or sequence unless the context clearly indicates otherwise. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of example embodiments.

[0045] Spatially relative terms, such as "inner," "outer," "inward," "outward," "lower," "bottom," "top," "upper," and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. Spatially relative terms can be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0046] It is noted that in the drawings, the dimensions of layers and regions can be exaggerated for clarity. Also, it is to be understood that when a layer or element is referred to as being "on" another layer or element, it can be directly on the other element or intervening layers can also be present. Furthermore, it is to be understood that when a layer or element is referred to as being "beneath" another layer or element, it can be directly beneath the other element, or intervening layers or elements can also be present. In addition, it is to be understood that when a layer or element is referred to as being "between" two layers or elements, it can be the only layer or element between the two layers or elements or one or more intervening layers or elements can also be present. Similar reference numerals can be used throughout the figures and / or text to indicate like components.

[0047] In the related art, the black matrix layer includes a plurality of openings, and the color film layer includes a plurality of color resistance blocks, and the plurality of color resistance blocks are one-to-one correspondingly arranged in the plurality of openings. Since the black matrix layer is a light-blocking layer, when the light inside the display panel transmits to the black matrix layer, the black matrix layer will block the light, which affects the transmittance of the display panel, reduces the display brightness and contrast of the display panel, and if it is necessary to improve the light extraction efficiency of the display panel, it is necessary to increase the light intensity inside the display panel, and it is necessary to increase the power consumption of the display panel. In the related art, in order to improve the light extraction efficiency of the display panel, a reflection layer is arranged between the side wall of the opening and the color resistance block, and the reflection layer is used to reflect the light so that the light is more emitted through the color resistance block, thereby increasing the light extraction efficiency of the OLED display panel. However, the arrangement of the reflection layer may increase the process complexity and process difficulty of the display panel.

[0048] In order to improve the light extraction efficiency of the display panel, improve the display brightness and contrast of the display panel, and reduce the power consumption of the display panel, embodiments of the present application provide a display panel, a manufacturing method of the display panel, and a display device. The display panel provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings. The display panel can be a touch display panel with a touch function, such as a display panel with an FMLOC structure. In addition, the display panel includes but is not limited to an LCD (Liquid Crystal Display), an OLED (Organic Light-Emitting Diode), a QLED (Quantum Dot Light Emitting Diodes), or a quantum dot photoluminescence display panel.

[0049] Embodiments of the first aspect of the present application provide a display panel, such as Figures 1 to 3As shown, the display panel 100 includes a substrate 1, a plurality of pixel units 2 arranged in a matrix on the substrate 1, an encapsulation layer 3, a first touch layer 4, a black matrix layer 5, a color film layer 6, and a second touch layer 7. The encapsulation layer 3 is arranged on a side of the plurality of pixel units 2 away from the substrate 1 and covers the plurality of pixel units 2. The first touch layer 4 is arranged on a side of the encapsulation layer 3 away from the substrate 1. The black matrix layer 5 is arranged on a side of the encapsulation layer 3 away from the substrate 1, and the black matrix layer 5 includes a plurality of first openings 51 arranged at intervals. The color film layer 6 is arranged on a side of the encapsulation layer 3 away from the substrate 1, and the color film layer 6 includes a plurality of color resistance blocks 61 arranged correspondingly to the plurality of pixel units 2, and the plurality of color resistance blocks 61 fill the plurality of first openings 51. The second touch layer 7 includes a touch portion 71 and a plurality of reflection portions 72. The touch portion 71 is arranged on a side of the black matrix layer 5 away from the encapsulation layer 3, and the black matrix layer 5 is provided with a first via 52. The touch portion 72 is connected to the first touch layer 4 through the first via 52. The reflection portion 72 is arranged between a side wall of the first opening 51 and the color resistance block 21. The reflection portion 72 is configured to reflect light incident on the reflection portion 72, so that part of the reflected light is incident on the plurality of color resistance blocks 61.

[0050] In the embodiment of the present application, the encapsulation layer 3 covers the plurality of pixel units 2, and is configured to encapsulate the plurality of pixel units 2, so as to reduce the probability of damage of the plurality of pixel units 2 caused by moisture and other impurities. Optionally, as shown in FIG. 1, the encapsulation layer 3 can be a single-layer structure. Figure 3 As shown, the encapsulation layer 3 can be a multi-layer structure. In the direction away from the substrate 1, the encapsulation layer 3 can include a first inorganic encapsulation layer 31, an organic encapsulation layer 32, and a second inorganic encapsulation layer 33 in sequence. The multi-layer structure of the encapsulation layer 3 can increase the tightness of the encapsulation layer 3 and improve the encapsulation effect of the encapsulation layer 3. Optionally, the materials of the first inorganic encapsulation layer 31 and the second inorganic encapsulation layer 33 include silicon oxide, silicon oxynitride, or silicon nitride, and the material of the organic encapsulation layer 32 includes fiber material, resin material, or material for laminated multi-layer board, which can be set according to actual needs, and the present application does not limit this.

[0051] The other regions of the black matrix layer 5 except the plurality of first openings 51 are non-transparent structures. Optionally, the other regions of the black matrix layer 5 except the plurality of first openings 51 can be coated with non-transparent black shading dyes. The black matrix layer 5 is used to shield part of the reflected light of the ambient light when the ambient light enters the inside of the display panel 100 and is reflected by the transistor and other structures in the display panel 100, thereby reducing the reflectivity of the display panel 100. The color film layer 6 includes a plurality of color resistance blocks 61, and the first openings 51 are used to accommodate the color resistance blocks 61. Specifically, each color resistance block 61 is disposed in a first opening 51. Each color resistance block 61 is arranged in correspondence with a pixel unit 2, i.e., the orthogonal projection of each color resistance block 61 on the substrate 1 covers the orthogonal projection of the pixel unit 2 corresponding to the color resistance block 61 on the substrate 1. The arrangement of the color resistance block 61 in correspondence with the pixel unit 2 can make the light emitted by the pixel unit 2 more transparent through the color resistance block 61, thereby improving the transmittance of the display panel 100 and further improving the display effect. In addition, the color resistance block 61 is also used for light filtering. Specifically, the color resistance block 61 can be a red color resistance block, a green color resistance block, and a blue color resistance block. Different color resistance blocks can absorb light of different colors from their own color, so that light of the same color as the color resistance block is emitted.

[0052] Optionally, the substrate 1 can be a rigid substrate such as a glass substrate, etc. The substrate 1 can also be a flexible substrate such as a polyimide substrate, etc., which is not limited in the present application.

[0053] Optionally, the material of the first touch layer 4 can be metal, and the material of the first touch layer 4 can also be metal oxide or transparent metal oxide. The material of the second touch layer 7 can be metal. The second touch layer 7 includes a touch portion 71 and a plurality of reflection portions 72. The touch portion 71 is connected to the first touch layer 4 through a via, and the two form a capacitive touch structure. Each reflection portion 72 reflects the light incident on the reflection portion 72, so that more light is transmitted to the adjacent color resistance block 61 and emitted through the color resistance block 61. Each reflection portion 72 is not connected to the touch portion 71. Optionally, the reflection portion 72 can be disposed in part of the first opening 51, and each first opening 51 is provided with one reflection portion 72. Optionally, the number of reflection portions 72 can be equal to the number of first openings 51, i.e., each first opening 51 is provided with one reflection portion 72.

[0054] The reflection part 72 is located inside the first opening 51 and is arranged between the sidewall of the first opening 51 and the color resist block 61 located in the first opening 51. The reflection part 72 can partially cover the sidewall of the first opening 51 or completely cover the sidewall of the first opening 51. When the reflection part 72 completely covers the sidewall of the first opening 51, the coverage range of the reflection part 72 can be increased, so that more light is reflected by the reflection part 72 and then enters the color resist block 61. In the embodiment of the present application, the reflection part 72 and the touch part 71 are formed at one time when the second touch layer 7 is manufactured.

[0055] In the display panel 100 provided by the embodiment of the present application, the second touch layer 7 includes the touch part 71 and the plurality of reflection parts 72. The touch part 71 is arranged on the black matrix layer 5, and the reflection part 72 is arranged between the sidewall of the first opening 51 and the color resist block 61 located in the first opening 51. The reflection part 72 covers at least part of the sidewall of the first opening 51. When the light emitted by the plurality of pixel units 2 is transmitted to the sidewall of the first opening 51, the reflection part 72 can reflect the light, so that the reflected light is transmitted into the color resist block 61 and then transmitted out of the display panel 100 through the color resist block 61. The reflection part 72 can reduce the probability of light being transmitted to the black matrix layer 5 through the sidewall of the first opening 51, reduce the light absorption rate of the black matrix layer 5, improve the light extraction rate of the display panel 100, improve the display brightness and contrast of the display panel 100, and reduce the power consumption of the display panel 100. In addition, the black matrix layer 5 is provided with a plurality of first vias 52, and the touch part 71 of the second touch layer 7 can be electrically connected to the second touch layer 4 through the first vias 52. The black matrix layer 5 can be used as an insulating layer between the first touch layer 4 and the second touch layer 7, and there is no need to arrange an insulating layer between the first touch layer 4 and the second touch layer 7, which can reduce the thickness and process complexity of the display panel 100.

[0056] In addition, compared with the related art in which a reflection layer is separately arranged on the inner wall of the opening of the black matrix layer, the reflection part 72 and the touch part 71 in the embodiment of the present application can be manufactured at one time when the second touch layer 7 is manufactured, without the need to increase additional masks and process steps, which can further reduce the process complexity and complexity of the display panel 100.

[0057] In some embodiments, the first touch layer 4 is a bridge layer, and the second touch layer 7 is a touch metal layer. Arranging the touch metal layer farther away from the plurality of pixel units 2 can reduce the probability of interference between the touch metal layer and the transistors and other structures in the plurality of pixel units 2.

[0058] Optionally, as shown in FIG. 1, the display panel 100 further includes a plurality of pixel units 2, a first touch layer 4, a second touch layer 7, and a color resist layer 6. Figure 1As shown, the touch pattern layer is a metal mesh structure, and the metal mesh structure includes a plurality of polygonal metal frames arranged in correspondence with the pixel units 2. The polygonal metal frames can have the same shape as the pixel units 2. The orthogonal projections of the plurality of color resistance blocks 61 on the substrate 1 are located within the orthogonal projections of the plurality of irregular polygonal metal frames.

[0059] Optionally, as shown in FIG. 1C, the second touch layer 7 is a touch pattern layer. The touch pattern layer includes a plurality of first touch electrodes 711 extending along a first direction X and arranged along a second direction Y, and a plurality of second touch electrodes 712 extending along the second direction Y and arranged along the first direction X. Figure 1 As shown in FIG. 1C, when the second touch layer 7 is a touch pattern layer, the touch portion 71 of the second touch layer 7 includes a plurality of first touch electrodes 711 extending along a first direction X and arranged along a second direction Y, and a plurality of second touch electrodes 712 extending along the second direction Y and arranged along the first direction X. Figure 3 As shown in FIG. 1C, the first direction X can be perpendicular to the second direction Y. The first touch electrodes 711 can be sensing electrodes, and the second touch electrodes 712 can be driving electrodes. Alternatively, the second touch electrodes 712 can be sensing electrodes, and the first touch electrodes 711 can be driving electrodes. The plurality of first touch electrodes 711 can be directly electrically connected, and the plurality of second touch electrodes 712 can be electrically connected through the first touch layer 4. Alternatively, the plurality of second touch electrodes 712 can be directly electrically connected, and the plurality of first touch electrodes 711 can be electrically connected through the first touch layer 4. The first direction X can be a long side direction or a short side direction of the display panel 100.

[0060] In some embodiments, the first touch layer 4 is a touch metal layer, and the second touch layer 7 is a bridge layer. Since the area of the bridge layer is small, when the second touch layer 7 is a bridge layer, the area of the touch portion 71 on the black matrix layer 5 is small, which can reduce the reflection area of the upper second touch layer 7 when ambient light enters the display panel 100, thereby reducing the reflectivity of the display panel 100 and further improving the display effect of the display panel 100.

[0061] In some embodiments, the display panel 100 further includes a first OC layer 8 disposed between the encapsulation layer 3 and the first touch layer 4.

[0062] In the embodiments of the present application, the first OC layer 8 can be used as an insulating layer between the encapsulation layer 3 and the first touch layer 4, and there is no need to separately provide an insulating layer for the first touch layer 4, which can further reduce the thickness of the display panel 100. The material of the first OC layer 8 can be resin or the like. The first OC layer 8 has a high refractive index, and the first OC layer 8 can refract the light emitted by the plurality of pixel units 2, change the transmission path of the light, and make more of the refracted light enter the color resistance blocks 61, thereby reducing the probability of the light entering the black matrix layer 5 and further improving the light extraction efficiency of the display panel 100. Figure 2As shown, after the light enters the first OC layer 8, the first OC layer 8 can refract the light, increase the light with the angle G, and make more light enter the color resistance block 61. In addition, the first OC layer 8 has good flexibility, and the first OC layer 8 can be used as an insulating layer between the first touch layer 4 and the encapsulation layer 3, so as to increase the flexibility of the display panel 100.

[0063] Optionally, the refractive index of the first OC layer 8 is 1.6 to 1.9.

[0064] Optionally, the thickness of the first OC layer 8 is 2 μm to 4 μm.

[0065] In some embodiments, the display panel 100 further includes a cover plate 9 and a second OC layer 10. The second OC layer 10 is arranged on a side of the second touch layer 7 away from the encapsulation layer 3, and the cover plate 9 is arranged on a side of the second OC layer 10 away from the second touch layer 7.

[0066] In the embodiments of the present application, the second OC layer 10 can be used as an insulating layer between the second touch layer 7 and the cover plate 9. The material of the second OC layer 10 can be resin or the like. The second OC layer 10 has a high refractive index, and the second OC layer 10 can refract more light emitted through the plurality of color resistance blocks 61, change the transmission path of the light, and make the refracted light more concentrated, so as to improve the forward light output rate of the display panel. As shown, Figure 2 As shown, after the light enters the second OC layer 10, the second OC layer 10 can refract the light, increase the light with the angle F, and increase the forward light output rate of the display panel 100. In addition, the second OC layer 10 has good flexibility, and the second OC layer 10 can be used as an insulating layer between the second touch layer 7 and the cover plate 9, so as to further increase the flexibility of the display panel 100.

[0067] Optionally, the refractive index of the second OC layer 10 is 1.6 to 1.9.

[0068] Optionally, the thickness of the second OC layer 10 is 2 μm to 4 μm.

[0069] In some embodiments, as shown, Figure 2 Each reflection portion 72 includes a plurality of reflection surfaces 721 arranged obliquely, and the plurality of reflection surfaces 721 gradually approach in a direction toward the substrate 1.

[0070] In the embodiments of the present application, as shown, Figure 2As shown, the plurality of reflecting surfaces 721 are arranged obliquely, and the plurality of reflecting surfaces 721 are arranged close to the package layer 3 in a direction towards the substrate substrate 1, i.e., the plane on which the plurality of reflecting surfaces 721 are arranged is arranged at an obtuse angle with the plane on which the upper surface of the package layer 3 is arranged. The light rays emitted by the pixel units 2 are divergent in all directions, and the plurality of reflecting surfaces 721 are arranged obliquely, so that more light rays can be incident on the reflecting surfaces 721. In addition, the upper ends of the plurality of reflecting surfaces 721 are expanded outward, so that the refraction angles of the light rays after refraction are increased, thereby causing more light rays to enter the color resistance blocks 61, and further improving the light extraction efficiency of the display panel 100. Alternatively, the plurality of reflecting surfaces 721 can be an integral structure.

[0071] In some embodiments, the pixel unit 2 includes a transistor 21 and a light-emitting unit 22 electrically connected to the transistor 21, and the plurality of pixel units 2 include a plurality of light-emitting units 22 arranged correspondingly to the plurality of color resistance blocks 61. The light-emitting unit 22 includes, in sequence from a side away from the substrate substrate 1, an anode layer 221, an organic light-emitting layer 222, and a cathode layer 223. The transistor 21 includes, on a side of the substrate substrate 1, an active layer 211, a first gate insulating layer 212, a gate metal layer 213, and a source-drain metal layer 214. The gate metal layer 213 includes a gate 2131, and the source-drain metal layer 214 includes a source 2141 and a drain 2142. The anode layer 221 is electrically connected to the drain 2142 through a via, and the source 2141 and the drain 2142 are connected to the active layer 211 through a via.

[0072] In the embodiments of the present application, the anode layer 221 can be electrically connected to or used as a pixel electrode, and the cathode layer 223 can be electrically connected to or used as a common electrode. The materials of the anode layer 221 and the cathode layer 223 can include transparent metal oxides such as indium zinc oxide (IZO), indium tin oxide (ITO), etc., and can also include metal materials such as copper, aluminum, silver, etc., or alloy materials containing the above metal materials, etc., which can be set according to actual needs, and the present application does not limit this. Alternatively, the cathode layers 223 of some or all of the light-emitting units 22 can be connected as a whole to have the same potential. The transistor 21 is used to apply a voltage to the light-emitting unit 22 corresponding thereto, so that the light-emitting layer 222 in the light-emitting unit 22 emits light by recombination.

[0073] The material of the gate metal layer 212 and the source-drain metal layer 214 can include a metal material such as copper, aluminum, silver, or an alloy material containing the above metal material. The material of the first gate insulating layer 212 can include an inorganic insulating material such as silicon oxide, silicon nitride, silicon oxynitride, or an organic insulating material such as polyimide, polyphthalimide, polyphthalamide, acrylic resin, benzocyclobutene, or phenolic resin. Alternatively, the gate metal layer 212 can have a laminated structure of a copper layer and a molybdenum-niobium layer for protecting the copper layer. In addition, the source-drain metal layer 214 can also include a copper layer and a molybdenum-niobium layer for protecting the copper layer, and the molybdenum-niobium layer has a protective effect on the copper layer and can reduce the probability of corrosion of the copper layer. Alternatively, the transistor 21 can have a top-gate structure or a bottom-gate structure, and the transistor 21 can also have a dual-gate structure, which is not limited in the present application.

[0074] The embodiment of the second aspect of the present application provides a manufacturing method of a display panel, as shown in Figure 4 and Figure 5 The manufacturing method comprises the following steps.

[0075] In step S401, a substrate is provided.

[0076] In step S402, a plurality of pixel units in a matrix distribution are formed on the substrate.

[0077] In step S403, an encapsulation layer is formed on the plurality of pixel units, and the encapsulation layer covers the plurality of pixel units.

[0078] In step S404, a first touch layer is formed on the encapsulation layer.

[0079] In step S405, a black matrix layer is formed on the encapsulation layer.

[0080] In step S406, the black matrix layer is patterned by a first mask to form a plurality of first openings and first vias arranged at intervals.

[0081] In step S407, a second touch layer is formed on the black matrix layer.

[0082] In step S408, the second touch layer is patterned by a second mask to form a touch part and a plurality of reflection parts, the touch part is connected to the first touch layer through the first via, and the reflection part is arranged on the inner wall of the first opening.

[0083] In step S409, a color film layer is formed on the encapsulation layer, the color film layer includes a plurality of color resistance blocks arranged corresponding to the plurality of pixel units, the plurality of color resistance blocks fill the plurality of first openings, and the reflection part is configured to reflect light incident on the reflection part, so that the reflected part of the light is incident in the plurality of color resistance blocks.

[0084] The display panel 100 manufactured by the manufacturing method provided in the embodiments of the present application has the second touch layer 7 comprising a touch part 71 and a plurality of reflective parts 72. The touch part 71 is arranged on the black matrix layer 5, and the reflective part 72 is arranged between the sidewall of the first opening 51 and the color resist block 61 arranged in the first opening 51. The reflective part 72 covers at least part of the sidewall of the first opening 51. When the light emitted by the plurality of pixel units 2 is transmitted to the sidewall of the first opening 51, the reflective part 72 can reflect the light, so that the reflected light is transmitted into the color resist block 61 and then transmitted to the outside of the display panel through the color resist block 61. The reflective part 72 can reduce the probability of the light being transmitted to the black matrix layer 5 through the sidewall of the first opening 51, reduce the light absorption rate of the black matrix layer 5, improve the light extraction rate of the display panel 100, improve the display brightness and contrast of the display panel 100, and reduce the power consumption of the display panel 100. In addition, the black matrix layer 5 is provided with a plurality of first vias 52, the touch part 72 of the second touch layer 7 can be electrically connected to the second touch layer 4 through the first via 52, and the black matrix layer 5 can be used as an insulating layer between the first touch layer 4 and the second touch layer 7, so that an insulating layer does not need to be arranged between the first touch layer 4 and the second touch layer 7, the thickness and the process complexity of the display panel 100 can be reduced. In addition, the reflective part 72 and the touch part 71 can be manufactured at one time when the second touch layer 7 is manufactured, so that no additional mask and process step is needed, and the process complexity and the complexity of the display panel 100 can be further reduced.

[0085] In some embodiments, as shown in FIG. 4B, before step S405, the manufacturing method further comprises: Figure 5

[0086] S410, coating a first OC layer 8 on the encapsulation layer 3.

[0087] In step S409, the manufacturing method further comprises:

[0088] S411, coating a second OC layer 9 on the black matrix layer 5 and the color film layer 6.

[0089] S412, covering the second OC layer 9 with a cover plate 10.

[0090] ​In the embodiments of the present application, the first OC layer 8 can be used as an insulating layer between the encapsulation layer 3 and the first touch layer 4, and no separate insulating layer needs to be provided for the first touch layer 4, which can further reduce the thickness of the display panel 100. The material of the first OC layer 8 can be resin or the like. The first OC layer 8 has a relatively high refractive index, and the first OC layer 8 can refract more light emitted by the plurality of pixel units 2, change the transmission path of the light, so that more refracted light enters the color resistance block 61, reduces the probability of light entering the black matrix layer 5, and further improves the light extraction efficiency of the display panel 100. The second OC layer 10 can be used as an insulating layer between the second touch layer 7 and the cover plate 9. The material of the second OC layer 10 can be resin or the like. The second OC layer 10 has a relatively high refractive index, and the second OC layer 10 can refract more light emitted by the plurality of color resistance blocks 61, change the transmission path of the light, so that the refracted light is diffused in all directions, so that the light emitted by the display panel 100 is more uniform. In addition, the second OC layer 10 has good flexibility, and using the second OC layer 10 as an insulating layer between the second touch layer 7 and the cover plate 9 can further increase the flexibility of the display panel 100.

[0091] The embodiments of the third aspect of the present application provide a display device, and the display device includes the display panel 100 in any of the above embodiments. The display device includes but is not limited to a mobile phone, a tablet computer, a display, a television, a picture screen, an advertising screen, electronic paper, etc. Since the display device includes the display panel 100, the display device has all the advantages of the display panel 100.

[0092] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application. Especially, as long as there is no structural conflict, each technical feature mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the application, but includes all technical solutions falling within the scope of the claims.

Claims

1. A display panel (100), characterized by The display panel (100) comprises: a substrate (1) and a plurality of pixel units (2) distributed in a matrix on the substrate (1); an encapsulation layer (3) arranged on a side of the plurality of pixel units (2) away from the substrate (1) and covering the plurality of pixel units (2); a first touch layer (4) arranged on a side of the encapsulation layer (3) away from the substrate (1); a black matrix layer (5) arranged on a side of the encapsulation layer (3) away from the substrate (1), the black matrix layer (5) comprising a plurality of first openings (51) arranged at intervals; a color film layer (6) arranged on a side of the encapsulation layer (3) away from the substrate (1), the color film layer (6) comprising a plurality of color resistance blocks (61) arranged correspondingly to the plurality of pixel units (2), the plurality of color resistance blocks (61) filling the plurality of first openings (51); a second touch layer (7) comprising a touch portion (71) and a plurality of reflection portions (72), the touch portion (71) being arranged on a side of the black matrix layer (5) away from the encapsulation layer (3), the black matrix layer (5) being provided with a first via (52), the touch portion (71) being connected to the first touch layer (4) through the first via (52), the reflection portion (72) being arranged between a side wall of the first opening (51) and the color resistance block (61) and being in contact with the side wall of the first opening (51) and the color resistance block (61), the reflection portion (72) being configured to reflect light incident on the reflection portion (72) so that part of the reflected light is incident on the plurality of color resistance blocks (61); each reflection portion (72) comprises a plurality of reflection surfaces (721) arranged obliquely, and the plurality of reflection surfaces (721) gradually approach in a direction toward the substrate (1), the plane on which the reflection surface (721) is arranged is arranged at an obtuse angle with the plane on which the upper surface of the encapsulation layer (3) is arranged, so that more light enters the color resistance block (61); the display panel (100) further comprises a first OC layer (8) arranged between the encapsulation layer (3) and the first touch layer (4); the first OC layer (8) has a relatively high refractive index, the first OC layer (8) can refract light emitted by the plurality of pixel units (2), change the transmission path of the light, and make more of the refracted light enter the color resistance block (61).

2. The display panel (100) according to claim 1, characterized in that, The display panel (100) further comprises a cover plate (9) and a second OC layer (10), the second OC layer (10) being arranged on a side of the second touch layer (7) away from the encapsulation layer (3), and the cover plate (9) being arranged on a side of the second OC layer (10) away from the second touch layer (7).

3. The display panel (100) according to claim 2, characterized in that, The refractive index of the first OC layer (8) is 1.6 to 1.9, and the refractive index of the second OC layer (10) is 1.6 to 1.

9.

4. The display panel (100) according to claim 1, characterized in that, The first touch layer (4) is a bridge layer, and the second touch layer (7) is a touch pattern layer; or the first touch layer (4) is a touch pattern layer, and the second touch layer (7) is a bridge layer.

5. The display panel (100) according to claim 1, characterized in that, The pixel unit (2) comprises a transistor (21) and a light-emitting unit (22) electrically connected with the transistor (21), and the plurality of light-emitting units (22) comprised by the plurality of pixel units (2) are arranged correspondingly with the plurality of color resistance blocks (61); The light-emitting unit (22) comprises an anode layer (221), an organic light-emitting layer (222) and a cathode layer (223) arranged in sequence along a side away from the substrate substrate; The transistor (21) comprises an active layer (211) located on one side of the substrate substrate (1), a first gate insulating layer (212), a gate metal layer (213) and a source-drain metal layer (214), the gate metal layer (213) comprises a gate (2131), the source-drain metal layer (214) comprises a source (2141) and a drain (2142), the anode layer (221) is electrically connected with the drain (2142) through a via, and the source (2141) and the drain (2142) are connected with the active layer (211) through a via.

6. A manufacturing method of a display panel, comprising: Comprise: A substrate substrate is provided; A plurality of pixel units are formed in a matrix distribution on the substrate substrate; A packaging layer is formed on the plurality of pixel units, and the packaging layer covers the plurality of pixel units; A first touch layer is formed on the packaging layer; A first OC layer is coated on the packaging layer; A black matrix layer is formed on the packaging layer; The black matrix layer is patterned by a first mask to form a plurality of first openings and first vias arranged at intervals; A second touch layer is formed on the black matrix layer; The second touch layer is patterned by a second mask to form a touch part and a plurality of reflection parts, the touch part is connected with the first touch layer through the first via, and the reflection part is arranged on the inner wall of the first opening; A color film layer is formed on the packaging layer, the color film layer comprises a plurality of color resistance blocks arranged correspondingly with the plurality of pixel units, the plurality of color resistance blocks fill the plurality of first openings, and the reflection part is configured to reflect light incident on the reflection part, so that part of the reflected light is incident on the plurality of color resistance blocks. The first OC layer has a relatively high refractive index, and the first OC layer can refract the light emitted by the plurality of pixel units, change the transmission path of the light, so that more of the refracted light enters the color resistance block.

7. The method of manufacturing according to claim 6, wherein, After the color film layer is formed on the packaging layer, the manufacturing method further comprises: A second OC layer is coated on the black matrix layer and the color film layer.

8. A display device, characterized by comprising: The display device comprises the display panel of any one of claims 1 to 5.

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