Display panel, manufacturing method of display panel and display device

Abstract

The embodiment of the invention provides a display panel, a manufacturing method of the display panel and a display device. The display panel comprises a substrate, a light-emitting layer and a functional layer, the light-emitting layer is arranged on one side of the substrate and comprises a plurality of light-emitting units which are arranged at intervals; the functional layer is arranged on the side, away from the substrate, of the light-emitting layer, the functional layer comprises a light reflecting layer and a first packaging layer, the light reflecting layer comprises a light reflecting component, the light reflecting component is enclosed to form a light outlet, and the orthographic projection of the light outlet on the substrate and the orthographic projection of the light-emitting unit on the substrate are at least partially overlapped; the first packaging layer comprises a plurality of first packaging parts, and at least part of the first packaging parts are located at the light outlet. The light reflection part is used for reflecting the large-angle light of the light emitting unit and improving the light emitting efficiency of the light emitting unit, at least part of the first packaging part is located at the light outlet, the influence of the first packaging part and the light reflection part on the thickness of the display panel is reduced, and the use performance of the display panel is improved.

Description

Technical Field

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

[0002] Organic Light Emitting Diode (OLED) and flat panel display devices based on technologies such as Light Emitting Diode (LED) have been widely used in various consumer electronic products such as mobile phones, televisions, laptops, desktop computers, etc. due to their advantages such as high image quality, power saving, thin body and wide application range, becoming the mainstream in display devices.

[0003] However, the performance of current display products needs to be improved. Summary of the invention

[0004] The embodiments of the present application provide a display panel, a method for manufacturing a display panel, and a display device, aiming to improve the performance of the display panel.

[0005] An embodiment of the first aspect of the present application provides a display panel, comprising: a substrate, a light-emitting layer and a functional layer; the light-emitting layer is arranged on one side of the substrate, and the light-emitting layer comprises a plurality of light-emitting units arranged at intervals; the functional layer is arranged on the side of the light-emitting layer away from the substrate, and the functional layer comprises a light-reflecting layer and a first encapsulation layer, the light-reflecting layer comprises a light-reflecting component, and the light-reflecting component encloses a light outlet, and the orthographic projection of the light outlet on the substrate at least partially overlaps with the orthographic projection of the light-emitting unit on the substrate; the first encapsulation layer comprises a plurality of first encapsulation parts, and at least some of the first encapsulation parts are located at the light outlet.

[0006] According to an embodiment of the present application, the functional layer also includes a second encapsulation layer, which is located on the side of the first encapsulation layer facing the substrate and covers the side of the light reflecting component facing away from the substrate; and / or, the functional layer also includes a third encapsulation layer, which is located on the side of the first encapsulation layer and the light reflecting layer facing away from the substrate, and the orthographic projection of the third encapsulation layer on the substrate at least partially overlaps with the orthographic projection of the light reflecting component on the substrate.

[0007] According to an embodiment of the present application, the functional layer includes a second encapsulation layer and a third encapsulation layer, and the third encapsulation layer is located on a side of the second encapsulation layer facing away from the substrate.

[0008] According to an embodiment of the present application, the first encapsulation layer includes an organic material.

[0009] According to an embodiment of the present application, the functional layer includes a second encapsulation layer, and the second encapsulation layer includes an inorganic material.

[0010] According to an embodiment of the present application, the functional layer includes a third encapsulation layer, and the third encapsulation layer includes an inorganic material.

[0011] According to an embodiment of the present application, the functional layer includes a second encapsulation layer and a third encapsulation layer, and the second encapsulation layer and the third encapsulation layer are in contact on the side of the light reflecting component facing away from the substrate; and / or, the functional layer also includes a fourth encapsulation portion, which is located on the side of the light reflecting component facing away from the substrate and between the second encapsulation layer and the third encapsulation layer.

[0012] According to an embodiment of the present application, the fourth encapsulation portion is made of the same material as the first encapsulation portion.

[0013] According to an embodiment of the present application, the display panel further includes a light conversion layer and a filter layer sequentially arranged in a direction away from the substrate, the functional layer is located between the light conversion layer and the light emitting layer, and / or the functional layer is located between the light conversion layer and the filter layer.

[0014] According to an embodiment of the present application, the first encapsulation layer includes a first sublayer located between the light conversion layer and the light emitting layer, and the light reflecting layer includes a first light reflecting sublayer located between the light conversion layer and the light emitting layer; the display panel also includes a light shielding portion, the light shielding portion is located on the side of the first light reflecting sublayer away from the substrate, the light shielding portion encloses a light transmission port, the light conversion layer includes a light conversion unit located at each light transmission port, the light filtering layer includes a light filtering unit located at each light transmission port, the light filtering unit is located on the side of the light conversion unit away from the substrate, and the orthographic projections of the light transmission port, the light conversion unit and the light filtering unit on the substrate at least partially overlap with the orthographic projection of the light emitting unit on the substrate.

[0015] According to an embodiment of the present application, the light-transmitting port includes a first opening, a second opening and a third opening, and the light conversion unit includes a first light conversion unit located in the first opening, a second light conversion unit located in the second opening and a third light conversion unit located in the third opening.

[0016] According to an embodiment of the present application, the filter unit includes a first filter unit located at the first opening, a second filter unit located at the second opening, and a third filter unit located at the third opening.

[0017] According to an embodiment of the present application, the light emitting unit is used to emit blue light, the third light conversion unit is made of a transparent material and is used to transmit blue light, and the third light filtering unit is a blue light filtering unit.

[0018] According to an embodiment of the present application, at least a portion of the light filtering unit is in contact with the light conversion unit.

[0019] According to an embodiment of the present application, the first light conversion unit is in contact with the first filter unit; and / or the second light conversion unit is in contact with the second filter unit; and / or the third light conversion unit is in contact with the third filter unit.

[0020] According to an embodiment of the present application, the first encapsulation layer includes a second sublayer located between the light conversion layer and the filter layer, the light reflection layer includes a second light reflection sublayer located between the light conversion layer and the filter layer; the light shielding portion includes a first light shielding portion located between the first light reflection sublayer and the second light reflection sublayer and a second light shielding portion located on a side of the second light reflection sublayer away from the substrate, the light transmission port includes a first light transmission port formed by the first light shielding portion, the light conversion unit is located at the first light transmission port, the light transmission port also includes a second light transmission port formed by the second light shielding portion, and the filter unit is located at the second light transmission port.

[0021] According to an embodiment of the present application, an orthographic projection of the first light-transmitting opening on the substrate at least partially overlaps with an orthographic projection of the light-emitting unit on the substrate.

[0022] According to an embodiment of the present application, an orthographic projection of the second light-transmitting opening on the substrate at least partially overlaps with an orthographic projection of the light-emitting unit on the substrate.

[0023] According to an embodiment of the present application, the first light-transmitting opening includes a first sub-opening, a second sub-opening and a third sub-opening, and the light conversion unit includes a first light conversion unit located in the first sub-opening, a second light conversion unit located in the second sub-opening and a third light conversion unit located in the third sub-opening.

[0024] According to an embodiment of the present application, the second light-transmitting port includes a fourth sub-opening, a fifth sub-opening and a sixth sub-opening, and the filtering unit includes a first filtering unit located at the fourth sub-opening, a second filtering unit located at the fifth sub-opening and a third filtering unit located at the sixth sub-opening.

[0025] According to an embodiment of the present application, the light reflecting layer includes a plurality of light reflecting components, two adjacent light reflecting components are connected to each other, and / or two adjacent light reflecting components are arranged at intervals.

[0026] According to an embodiment of the present application, two adjacent light reflecting components are connected to each other to form a mesh structure.

[0027] According to an embodiment of the present application, a plurality of light reflecting components are arranged at intervals from each other.

[0028] According to an embodiment of the present application, the plurality of light reflecting components are in a ring-shaped structure.

[0029] According to an embodiment of the present application, the first encapsulation layer is further located between at least a portion of the light reflecting components.

[0030] According to an embodiment of the present application, a dimension of the light reflecting component along a direction perpendicular to the thickness of the display panel is 1.5 micrometers to 2.3 micrometers.

[0031] According to an embodiment of the present application, a dimension of the light reflecting component along a thickness direction of the display panel is 0.8 micrometers to 1.2 micrometers.

[0032] According to an embodiment of the present application, the display panel further includes a pixel definition layer, the pixel definition layer includes a pixel defining portion and a pixel opening formed by the pixel defining portion, and the light emitting unit is within the pixel opening.

[0033] According to an embodiment of the present application, an orthographic projection of the pixel defining portion on the substrate at least partially overlaps with an orthographic projection of the light reflecting component on the substrate.

[0034] The embodiment of the second aspect of the present application further provides a method for manufacturing a display panel, including:

[0035] A light-emitting layer is formed on one side of the substrate, wherein the light-emitting layer includes a plurality of light-emitting units arranged at intervals;

[0036] A light reflecting layer is formed on the side of the light emitting layer away from the substrate, the light reflecting layer includes a light reflecting component, the light reflecting component encloses a light outlet, and an orthographic projection of the light outlet on the substrate at least partially overlaps with an orthographic projection of the light emitting unit on the substrate;

[0037] A first encapsulation layer is formed on the side of the light-emitting layer away from the substrate. The first encapsulation layer includes a plurality of first encapsulation parts, and at least part of the first encapsulation parts are located at the light outlet.

[0038] According to an embodiment of the present application, the manufacturing method further includes:

[0039] A light conversion layer is formed on the first encapsulation layer and the light reflection layer on a side away from the substrate, wherein the light conversion layer comprises a light conversion unit, and an orthographic projection of the light conversion unit on the substrate at least partially overlaps with an orthographic projection of the light outlet on the substrate;

[0040] According to an embodiment of the present application, the first encapsulation layer includes a first sublayer located between the light conversion layer and the light emitting layer, the light reflecting layer includes a first light reflecting sublayer located between the light conversion layer and the light emitting layer, and the manufacturing method further includes:

[0041] A second sublayer of the first encapsulation layer and a second light reflecting sublayer of the light reflecting layer are formed on the side of the light conversion layer facing away from the substrate, the light reflecting component located on the second light reflecting sublayer encloses a light outlet, and the orthographic projection of the light outlet located on the second light reflecting sublayer on the substrate at least partially overlaps with the orthographic projection of the light emitting unit on the substrate.

[0042] An embodiment of the third aspect of the present application further provides a display device, comprising a display panel in any embodiment of the first aspect or a display panel prepared by the manufacturing method of the display panel in any embodiment of the second aspect.

[0043] In an embodiment of the present application, the light outlet is used to transmit light from the light-emitting unit, reducing the influence of the light-reflecting component on the light emission of the light-emitting unit. The light-reflecting component is used to reflect large-angle light from the light-emitting unit to improve the light emission efficiency of the light-emitting unit. At least part of the first packaging part is located at the light outlet. The first packaging part can provide packaging protection for the light-emitting unit, improve the yield of the light-emitting unit affected by water and oxygen intrusion, and reduce the influence of the first packaging part and the light-reflecting component on the thickness of the display panel, thereby improving the performance of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Other features, objects and advantages of the present application will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals represent the same or similar features.

[0045] Figure 1 is a structural schematic diagram of a display panel provided in an embodiment of the present application;

[0046] Figure 2 yes Figure 1 Cross-section at AA;

[0047] Figure 3 is a schematic diagram of the structure of another display panel provided in an embodiment of the present application;

[0048] Figure 4 is a structural schematic diagram of another display panel provided in an embodiment of the present application;

[0049] Figure 5 is a structural schematic diagram of another display panel provided in an embodiment of the present application;

[0050] Figure 6 It is a flow chart of a method for manufacturing a display panel provided in an embodiment of the present application.

[0051] Description of reference numerals: 100, substrate; 200, light emitting unit; 300, functional layer; 301, first functional layer; 302, second functional layer; 310, light reflecting layer; 310a, first light reflecting sublayer; 310b, second light reflecting sublayer; 311, light reflecting component; 312, light outlet; 320, first packaging unit; 320a, first sublayer; 320b, second sublayer; 330, second packaging layer; 330a, third sublayer; 330b, fourth sublayer; 340, third packaging layer; 340a, fifth sublayer; 340b, sixth sublayer; 350, fourth packaging unit; 400, light conversion layer; 410, light conversion unit; 411, first light conversion unit; 412, The second light conversion unit; 413, the third light conversion unit; 500, the filter layer; 510, the filter unit; 511, the first filter unit; 512, the second filter unit; 513, the third filter unit; 600, the shading portion; 610, the light-transmitting port; 611, the first opening; 612, the second opening; 613, the third opening; 620, the first light-shielding portion; 630, the second light-shielding portion; 640, the first light-transmitting port; 641, the first sub-opening; 642, the second sub-opening; 643, the third sub-opening; 650, the second light-transmitting port; 651, the fourth sub-opening; 652, the fifth sub-opening; 653, the sixth sub-opening; 700, the pixel limiting portion; 710, the pixel opening; X, the thickness direction. DETAILED DESCRIPTION

[0052] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating examples of the present application. In the accompanying drawings and the following description, at least part of the known structures and technologies are not shown to avoid unnecessary ambiguity in the present application; and, for clarity, the size of some structures may be exaggerated. In addition, the features, structures or characteristics described below may be combined in one or more embodiments in any suitable manner.

[0053] In the description of the present application, it should be noted that, unless otherwise specified, "multiple" means more than two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating directions or positional relationships, are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0054] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the embodiments of the present application. In the description of the present application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0055] like Figure 1 and Figure 2 As shown, a display panel provided by an embodiment of the first aspect of the present application includes: a substrate 100, a light-emitting layer and a functional layer 300; the light-emitting layer is arranged on one side of the substrate 100, and the light-emitting layer includes a plurality of light-emitting units 200 arranged at intervals; the functional layer 300 is arranged on the side of the light-emitting layer away from the substrate 100, the functional layer 300 includes a light-reflecting layer 310 and a first encapsulation layer, the light-reflecting layer 310 includes a light-reflecting component 311, the light-reflecting component 311 encloses a light outlet 312, and the orthographic projection of the light outlet 312 on the substrate 100 at least partially overlaps with the orthographic projection of the light-emitting unit 200 on the substrate 100; the first encapsulation layer includes a plurality of first encapsulation parts 320, and at least part of the first encapsulation parts 320 are located at the light outlet 312.

[0056] In this embodiment, the light reflecting layer 310 includes a light reflecting component 311, which encloses a light outlet 312. The orthographic projection of the light outlet 312 on the substrate 100 at least partially overlaps with the orthographic projection of the light emitting unit 200 on the substrate 100. The light outlet 312 is used to transmit light from the light emitting unit 200, thereby reducing the influence of the light reflecting component 311 on the light emission of the light emitting unit 200. The light reflecting component 311 is used to reflect large-angle light from the light emitting unit 200, thereby improving the light emission efficiency of the light emitting unit 200. At least part of the first packaging part 320 is located at the light outlet 312. The first packaging part 320 can provide packaging protection for the light emitting unit 200, improve the yield of the light emitting unit 200 affected by water and oxygen intrusion, and reduce the influence of the first packaging part 320 and the light reflecting component 311 on the thickness of the display panel, thereby improving the performance of the display panel.

[0057] like Figure 2 As shown, in some optional embodiments, the functional layer 300 further includes a second encapsulation layer 330 , which is located on a side of the first encapsulation layer facing the substrate 100 and covers a side of the light reflecting component 311 facing away from the substrate 100 .

[0058] In these optional embodiments, the second encapsulation layer 330 can provide encapsulation protection for the light-emitting unit 200, and the second encapsulation layer 330 covers the side of the light-reflecting component 311 facing away from the substrate 100. The second encapsulation layer 330 is continuously arranged, thereby improving the encapsulation effect and reducing the entry of water, oxygen, etc. into the light-emitting unit 200 through the gap between the first encapsulation part 320 and the light-reflecting component 311.

[0059] like Figure 2 As shown, in some optional embodiments, the functional layer 300 also includes a third encapsulation layer 340, which is located on the side of the first encapsulation layer and the light reflecting layer 310 away from the substrate 100, and the orthographic projection of the third encapsulation layer 340 on the substrate 100 at least partially overlaps with the orthographic projection of the light reflecting component 311 on the substrate 100.

[0060] In these optional embodiments, the third encapsulation layer 340 can provide encapsulation protection for the light-emitting unit 200, and the orthographic projection of the third encapsulation layer 340 on the substrate 100 at least partially overlaps with the orthographic projection of the light-reflecting component 311 on the substrate 100, that is, the third encapsulation layer 340 covers the side of the light-reflecting component 311 facing away from the substrate 100, and the third encapsulation layer 340 is continuously arranged, thereby improving the encapsulation effect and reducing the entry of water, oxygen, etc. into the light-emitting unit 200 through the gap between the first encapsulation part 320 and the light-reflecting component 311.

[0061] Optional, such as Figure 2 As shown, the functional layer 300 includes a first encapsulation layer and a third encapsulation layer 340 . The third encapsulation layer 340 is located on a side of the second encapsulation layer 330 facing away from the substrate 100 .

[0062] Optionally, the first encapsulation layer includes an organic material having a certain thickness, which can be beneficial for filling the light outlet 312 and improving the flatness of the first encapsulation layer and the light reflecting component 311 on a side away from the substrate 100 .

[0063] Optionally, the second encapsulation layer 330 includes an inorganic material. The inorganic material has a good barrier effect against water, oxygen, etc. and has good ductility, which is beneficial to improving the encapsulation effect.

[0064] Optionally, the third encapsulation layer 340 includes inorganic materials. Inorganic materials have a good barrier effect on water, oxygen, etc. and have good ductility, which is beneficial to improving the encapsulation effect.

[0065] like Figure 2 As shown, in some optional embodiments, the functional layer 300 further includes a second encapsulation layer 330 and a third encapsulation layer 340, and the second encapsulation layer 330 and the third encapsulation layer 340 are in contact with each other at a side of the light reflecting component 311 facing away from the substrate 100;

[0066] In these optional embodiments, the second encapsulation layer 330 and the third encapsulation layer 340 are in contact on the side of the light reflecting part 311 facing away from the substrate 100, that is, the second encapsulation layer 330 and the third encapsulation layer 340 are not provided with the first encapsulation part 320 or other film layers, which is beneficial to reducing the thickness of the display panel.

[0067] like Figure 3 As shown, in some optional embodiments, the functional layer 300 further includes a fourth encapsulation portion 350 , which is located on the side of the light reflecting component 311 away from the substrate 100 and between the second encapsulation layer 330 and the third encapsulation layer 340 .

[0068] In these optional embodiments, the orthographic projection of the fourth encapsulation part 350 on the substrate 100 at least partially overlaps with the orthographic projection of the light reflecting component 311 on the substrate 100 , and the fourth encapsulation part 350 can improve the encapsulation effect of the display panel.

[0069] Optionally, the fourth encapsulation part 350 and the first encapsulation part 320 are made of the same material, so that the fourth encapsulation part 350 and the first encapsulation part 320 can be formed in the same process step.

[0070] Optional, such as Figure 3 As shown, the fourth packaging part 350 is connected to the first packaging part 320, so that the fourth packaging part 350 and the first packaging part 320 constitute a whole layer of packaging, thereby improving the packaging effect.

[0071] Optional, such as Figure 3 As shown, the fourth encapsulation part 350 and the first encapsulation part 320 have the same spacing from the substrate 100 , thereby improving the flatness of the fourth encapsulation part 350 and the first encapsulation part 320 from the substrate 100 .

[0072] like Figure 2 As shown, in some optional embodiments, the display panel further includes a light conversion layer 400 and a filter layer 500 sequentially arranged in a direction away from the substrate 100 , and the functional layer 300 is located between the light conversion layer 400 and the light emitting layer.

[0073] In these optional embodiments, the light emitted by the light-emitting unit 200 is converted into light in a specific wavelength range by the light conversion layer 400 and then emitted through the filter layer 500. The filter layer 500 is used to transmit light in a certain wavelength range and block light in other wavelength ranges, thereby achieving a filtering effect and improving the display effect. The functional layer 300 is located between the light conversion layer 400 and the light-emitting layer, and the light reflecting component 311 can reflect the large-angle light of the light-emitting unit 200, reduce light crosstalk, allow more light to enter the light conversion unit 410, and improve light extraction efficiency.

[0074] like Figure 4As shown, the functional layer 300 includes a first functional layer 301 and a second functional layer 302 , and the second functional layer 302 is located between the light conversion layer 400 and the filter layer 500 .

[0075] like Figure 4 As shown, in some optional embodiments, the functional layer 300 is located between the light conversion layer 400 and the filter layer 500 .

[0076] In these optional embodiments, the light reflecting component 311 can reflect the large-angle light converted by the light conversion unit 410, so that more light enters the filter unit 510, thereby improving the light extraction efficiency of the display panel.

[0077] like Figure 2 As shown, in some optional embodiments, the first encapsulation layer includes a first sublayer 320a located between the light conversion layer 400 and the light-emitting layer, and the light reflecting layer 310 includes a first light reflecting sublayer 310a located between the light conversion layer 400 and the light-emitting layer; the display panel also includes a light shielding portion 600, the light shielding portion 600 is located on the side of the first light reflecting sublayer 310a away from the substrate 100, and the light shielding portion 600 encloses a light transmission port 610, the light conversion layer 400 includes a light conversion unit 410 located at each light transmission port 610, and the filter layer 500 includes a filter unit 510 located at each light transmission port 610, and the filter unit 510 is located on the side of the light conversion unit 410 away from the substrate 100, and the orthographic projections of the light transmission port 610, the light conversion unit 410 and the filter unit 510 on the substrate 100 at least partially overlap with the orthographic projection of the light-emitting unit 200 on the substrate 100.

[0078] In these optional embodiments, the light shielding portion 600 encloses a light transmission port 610, the light conversion layer 400 includes a light conversion unit 410 located at each light transmission port 610, and the light filter layer 500 includes a light filter unit 510 located at each light transmission port 610. The light transmission port 610 is used to accommodate the light conversion unit 410 and the light filter unit 510. The orthographic projections of the light transmission port 610, the light conversion unit 410, and the light filter unit 510 on the substrate 100 overlap with the orthographic projection of the light emitting unit 200 on the substrate 100 at least partially, so that the outgoing light of the light emitting unit 200 can be emitted to the light transmission port 610 and sequentially pass through the light conversion unit 410 and the light filter unit 510. The light emitted by the light emitting unit 200 is converted into light in a specific wavelength range by the light conversion unit 410 and then emitted through the light filter unit 510. The light filter unit 510 is used to transmit light in a certain wavelength range and block light in other wavelength ranges, thereby achieving a light filtering effect and improving the display effect. The light shielding part 600 includes a light shielding material, which can reduce the crosstalk between the light in the adjacent light-transmitting openings 610 and improve the display effect. The first light reflecting sublayer 310a and the first sublayer 320a are located between the light conversion layer 400 and the light-emitting layer. The first light reflecting sublayer 310a is used to reflect the large-angle light of the light-emitting unit 200, reduce the large-angle light emitted by the light-emitting unit 200 from reaching the filter part, so that more light enters the light conversion unit 410, and improves the light extraction efficiency.

[0079] Optional, such as Figure 2 As shown, the light-transmitting opening 610 includes a first opening 611, a second opening 612, and a third opening 613, and the light conversion unit 410 includes a first light conversion unit 411 located at the first opening 611, a second light conversion unit 412 located at the second opening 612, and a third light conversion unit 413 located at the third opening 613. The light emitted by the light-emitting unit 200 is converted into light in a specific wavelength range after passing through the first light conversion unit 411, the second light conversion unit 412, and the third light conversion unit 413.

[0080] Optional, such as Figure 2 As shown, the filter unit 510 includes a first filter unit 511 located at the first opening 611, a second filter unit 512 located at the second opening 612, and a third filter unit 513 located at the third opening 613. The materials of the first filter unit 511, the second filter unit 512, and the third filter unit 513 are different, so that the wavelength ranges of light that can be filtered by the first filter unit 511, the second filter unit 512, and the third filter unit 513 are at least partially different, so that the first filter unit 511, the second filter unit 512, and the third filter unit 513 can pass light of different colors. Optionally, the wavelength ranges of light that can be filtered by the first filter unit 511, the second filter unit 512, and the third filter unit 513 are different or at least partially different.

[0081] Optional, such as Figure 2 As shown, the first light conversion unit 411 emits red light under the stimulation of light, the second light conversion unit 412 emits green light under the stimulation of light, and the third light conversion unit 413 emits blue light under the stimulation of light, so that the display panel can emit red light, green light and blue light, and the first filter unit 511 is a red filter unit 510, and the red filter unit 510 filters the red light converted by the first light conversion unit 411 to improve the color purity of the red light. The second filter unit 512 is a green filter unit 510, and the green filter unit 510 filters the green light converted by the second light conversion unit 412 to improve the color purity of the green light. The third filter unit 513 is a blue filter unit 510, and the blue filter unit 510 filters the blue light converted by the third conversion unit to improve the color purity of the blue light.

[0082] Optional, such as Figure 2 As shown, the light emitting unit 200 is used to emit blue light, the third light conversion unit 413 is made of a transparent material and is used to transmit the blue light, and the third light filtering unit 513 is a blue light filtering unit 510 .

[0083] like Figure 2 As shown, in some optional embodiments, at least part of the light filtering unit 510 is in contact with the light conversion unit 410 .

[0084] In these optional embodiments, the filter unit 510 is in contact with the light conversion unit 410, so that the light emitted by the light-emitting unit 200 is converted into light in a specific wavelength range by the light conversion unit 410 and then directly enters the filter unit 510, thereby improving the light output efficiency and reducing the thickness of the display panel.

[0085] Optional, such as Figure 2 As shown, the first light conversion unit 411 is in contact with the first filter unit 511; and / or the second light conversion unit 412 is in contact with the second filter unit 512; and / or the third light conversion unit 413 is in contact with the third filter unit 513, which can improve the light output efficiency and reduce the thickness of the display panel.

[0086] like Figure 4As shown, in some optional embodiments, the first encapsulation layer includes a second sublayer 320b located between the light conversion layer 400 and the filter layer 500, the light reflection layer 310 includes a second light reflection sublayer 310b located between the light conversion layer 400 and the filter layer 500; the light shielding portion 600 includes a first light shielding portion 620 located between the first light reflection sublayer 310a and the second light reflection sublayer 310b and a second light shielding portion 630 located on the side of the second light reflection sublayer 310b away from the substrate 100, the light transmission port 610 includes a first light transmission port 640 formed by the first light shielding portion 620, the light conversion unit 410 is located at the first light transmission port 640, the light transmission port 610 also includes a second light transmission port 650 formed by the second light shielding portion 630, and the filter unit 510 is located at the second light transmission port 650.

[0087] In these optional embodiments, the second light reflecting sublayer 310b and the second sublayer 320b are located between the light conversion layer 400 and the filter layer 500, that is, the light conversion layer 400 and the filter layer 500 are arranged at intervals. The first light shielding portion 620 encloses a first light-transmitting opening 640, the light conversion unit 410 is located in the first light-transmitting opening 640, the first light-transmitting opening 640 is used to accommodate the light conversion unit 410, the second light shielding portion 630 encloses a second light-transmitting opening 650, the second light-transmitting opening 650 is used to accommodate the filter unit 510, the first light shielding portion 620 and the second light shielding portion 630 include light shielding materials, which can reduce the crosstalk between the light in the adjacent first light-transmitting opening 640 and the adjacent second light-transmitting opening 650, and improve the display effect. Optionally, the transmittance of the first light shielding portion 620 is greater than the transmittance of the second light shielding portion 630. When the first light shielding portion 620 and the first light transmitting opening 640 are manufactured through an exposure and development process, the first light transmitting opening 640 having a larger dimension X along the thickness direction of the display panel can be prepared, thereby making the dimension of the light conversion unit 410 along the thickness direction X of the display panel larger, thereby improving the light conversion efficiency.

[0088] Optional, such as Figure 4 As shown, the dimension of the first light shielding portion 620 along the thickness direction X of the display panel is greater than the dimension of the second light shielding portion 630 along the thickness direction X of the display panel.

[0089] The first light reflecting sublayer 310a is used to reflect the large-angle light from the light emitting unit 200, reducing the large-angle light emitted by the light emitting unit 200 from reaching the first light shielding portion 620, allowing more light to enter the light conversion unit 410, thereby improving light extraction efficiency.

[0090] The second light reflecting sublayer 310b and the second sublayer 320b are located between the light conversion layer 400 and the filter layer 500, and are used to reflect the large-angle light converted by the light conversion unit 410, reduce the large-angle light from reaching the second light shielding portion 630, and allow more light to enter the filter unit 510, thereby improving the light output efficiency.

[0091] Optional, such as Figure 4 As shown, the orthographic projection of the first light transmission port 640 on the substrate 100 at least partially overlaps with the orthographic projection of the light emitting unit 200 on the substrate 100. This enables the light emitted by the light emitting unit 200 to be incident on the first light transmission port 640 and converted by the light conversion unit 410.

[0092] Optional, such as Figure 4 As shown, the orthographic projection of the second light-transmitting opening 650 on the substrate 100 at least partially overlaps with the orthographic projection of the light-emitting unit 200 on the substrate 100 , so that the emitted light of the light-emitting unit 200 can be emitted through the first light-transmitting opening 640 and the second light-transmitting opening 650 .

[0093] Optional, such as Figure 4 As shown, the first light-transmitting opening 640 includes a first sub-opening 641, a second sub-opening 642 and a third sub-opening 643, the light conversion unit 410 includes a first light conversion unit 411 located at the first sub-opening 641, a second light conversion unit 412 located at the second sub-opening 642 and a third light conversion unit 413 located at the third sub-opening 643, and the first light-shielding portion 620 is used to reduce the crosstalk of light in the first sub-opening 641, the second sub-opening 642 and the third sub-opening 643 to improve the display effect.

[0094] Optional, such as Figure 4 As shown, the second light-transmitting opening 650 includes a fourth sub-opening 651, a fifth sub-opening 652 and a sixth sub-opening 653, and the filter unit 510 includes a first filter unit 511 located at the fourth sub-opening 651, a second filter unit 512 located at the fifth sub-opening 652 and a third filter unit 513 located at the sixth sub-opening 653. The second light shielding portion 630 is used to reduce the crosstalk of light in the fourth sub-opening 651, the fifth sub-opening 652 and the sixth sub-opening 653, so as to improve the display effect.

[0095] Optional, such as Figure 4 As shown, the second encapsulation layer 330 includes a third sublayer 330a and a fourth sublayer 330b. The third sublayer 330a is located between the light emitting layer and the light conversion layer 400, and the fourth sublayer 330b is located between the filter layer 500 and the light conversion layer 400. The third sublayer 330a is located on the side of the first sublayer 320a facing the substrate 100, and covers the side of the first light reflecting sublayer 310a away from the substrate 100. The fourth sublayer 330b is located on the side of the second sublayer 320b facing the substrate 100, and covers the side of the second light reflecting sublayer 310b away from the substrate 100.

[0096] Optional, such as Figure 4As shown, the third encapsulation layer 340 includes a fifth sublayer 340a and a sixth sublayer 340b. The fifth sublayer 340a is located between the light-emitting layer and the light conversion layer 400, and the sixth sublayer 340b is located between the filter layer 500 and the light conversion layer 400. The fifth sublayer 340a is located on the side of the third sublayer 330a away from the substrate 100, and the sixth sublayer 340b is located on the side of the fourth sublayer 330b away from the substrate 100.

[0097] like Figure 5 As shown, in some optional embodiments, the light reflecting layer 310 includes a plurality of light reflecting components 311 , and two adjacent light reflecting components 311 are connected to each other.

[0098] In these optional embodiments, two adjacent light reflecting components 311 are connected to each other, which can reduce the light transmittance of the light reflecting component 311, thereby increasing the light reflection effect of the light reflecting component 311. Optionally, the light reflecting component 311 includes a metal material, and after the entire layer of the metal material is set, the light outlet 312 and the light reflecting component 311 are formed by patterning, and the two adjacent light reflecting components 311 are connected to each other, which is conducive to reducing the difficulty of the patterning process.

[0099] Optional, such as Figure 5 As shown, two adjacent light reflecting components 311 are interconnected to form a mesh structure, which can improve the structural strength of the light reflecting component 311 and reduce the sharp corners of the light reflecting component 311, thereby reducing the risk of the light reflecting component 311 damaging the second encapsulation layer 330 and the third encapsulation layer 340.

[0100] like Figure 2 As shown, in some optional embodiments, the light reflecting layer 310 includes a plurality of light reflecting components 311 , and two adjacent light reflecting components 311 are arranged at intervals.

[0101] After external light is incident on the display surface of the display panel and enters the light reflecting component 311, it forms reflected light. After the reflected light of the external light is mixed with the emitted light of the light emitting unit 200, it will affect the display effect of the display panel. In these optional embodiments, two adjacent light reflecting components 311 are arranged at intervals, which can reduce the arrangement area of ​​the light reflecting components 311, reduce the light reflection effect of the light reflecting components 311 on external light, and improve the display effect of the display panel.

[0102] Optionally, a plurality of light reflecting components 311 are arranged at intervals to form a ring structure. The orthographic projection of the light reflecting component 311 on the substrate 100 surrounds the orthographic projection of the corresponding light emitting unit 200 on the substrate 100 .

[0103] Optional, such as Figure 2As shown, the first encapsulation layer is also located between at least a portion of the light reflecting components 311 to fix the position of the light reflecting components 311 and to planarize the side of the light reflecting components 311 and the first encapsulation layer facing away from the substrate 100 .

[0104] Optionally, a dimension of the light reflecting component 311 along a direction perpendicular to the thickness direction X of the display panel is 1.5 micrometers to 2.3 micrometers, and specifically may be 1.5 micrometers, 1.8 micrometers, 2 micrometers, 2.3 micrometers, etc.

[0105] Optionally, a size of the light reflecting component 311 along the thickness direction X of the display panel is 0.8 micrometers to 1.2 micrometers, and specifically may be 0.8 micrometers, 0.9 micrometers, 1 micrometer, 1.2 micrometers, etc.

[0106] like Figure 2 As shown, in some optional embodiments, the display panel further includes a pixel definition layer, the pixel definition layer includes a pixel defining portion 700 and a pixel opening 710 formed by the pixel defining portion 700 , and the light emitting unit 200 is within the pixel opening 710 .

[0107] In these optional embodiments, the pixel defining part 700 encloses and forms a pixel opening 710 to set the light-emitting unit 200, so as to realize normal light emission of the light-emitting unit 200. In addition, the pixel defining part 700 defines the setting area of ​​each light-emitting unit 200, so as to reduce the cross-color defect between each light-emitting unit 200.

[0108] Optional, such as Figure 2 As shown, the orthographic projection of the pixel defining portion 700 on the substrate 100 at least partially overlaps with the orthographic projection of the light reflecting component 311 on the substrate 100 , thereby reducing the influence of the light reflecting component 311 on the light emitting unit 200 .

[0109] like Figure 4 As shown, part of the light a emitted by the light-emitting unit 200 is emitted to the first light reflecting sublayer 310a, and is reflected by the first light reflecting sublayer 310a to form reflected light b, and part of the reflected light b is emitted to the light conversion unit 410, and part of the emitted light c of the light conversion unit 410 is emitted to the second light reflecting sublayer 310b, and is reflected by the second light reflecting sublayer 310b to form reflected light d and enter the filter unit 510, which is beneficial to improve the light extraction efficiency.

[0110] The second aspect of the present application also provides a method for manufacturing a display panel. Figure 6 As shown, please refer to Figure 4 ,include:

[0111] Step S01: forming a light-emitting layer on one side of a substrate 100 , wherein the light-emitting layer includes a plurality of light-emitting units 200 arranged at intervals.

[0112] Step S02: forming a light reflecting layer 310 on the side of the light emitting layer away from the substrate 100, wherein the light reflecting layer 310 comprises a light reflecting component 311, and the light reflecting component 311 encloses a light outlet 312, wherein an orthographic projection of the light outlet 312 on the substrate 100 at least partially overlaps with an orthographic projection of the light emitting unit 200 on the substrate 100;

[0113] Step S03 : forming a first encapsulation layer on the side of the light emitting layer facing away from the substrate 100 , wherein the first encapsulation layer includes a plurality of first encapsulation portions 320 , and at least a portion of the first encapsulation portions 320 is located at the light exit 312 .

[0114] In this embodiment, the light reflecting component 311 is used to reflect large-angle light from the light-emitting unit 200, thereby improving the light output efficiency of the light-emitting unit 200. At least part of the first packaging part 320 is located at the light output port 312. The first packaging part 320 can provide packaging protection for the light-emitting unit 200, improve the yield of the light-emitting unit 200 affected by water and oxygen intrusion, and reduce the influence of the first packaging part 320 and the light reflecting component 311 on the thickness of the display panel, thereby improving the performance of the display panel.

[0115] In some optional embodiments, the manufacturing method further includes: forming a light conversion layer 400 on the side of the first encapsulation layer and the light reflecting layer 310 facing away from the substrate 100, the light conversion layer 400 includes a light conversion unit 410, and the orthographic projection of the light conversion unit 410 on the substrate 100 at least partially overlaps with the orthographic projection of the light outlet 312 on the substrate 100.

[0116] In these optional embodiments, the light emitted by the light emitting unit 200 is converted into light of a specific wavelength range by the light conversion layer 400 and then emitted, thereby improving the display effect. The light reflecting component 311 can reflect the large-angle light of the light emitting unit 200, reduce light crosstalk, allow more light to enter the light conversion unit 410, and improve light extraction efficiency.

[0117] Optionally, the first encapsulation layer includes a first sublayer 320a located between the light conversion layer 400 and the light emitting layer, the light reflecting layer 310 includes a first light reflecting sublayer 310a located between the light conversion layer 400 and the light emitting layer, and the manufacturing method further includes:

[0118] The second sublayer 320b of the first encapsulation layer and the second light reflecting sublayer 310b of the light reflecting layer 310 are formed on the side of the light conversion layer 400 away from the substrate 100, and the light reflecting component 311 located on the second light reflecting sublayer 310b encloses to form a light outlet 312, and the orthographic projection of the light outlet 312 located on the second light reflecting sublayer 310b on the substrate 100 at least partially overlaps with the orthographic projection of the light emitting unit 200 on the substrate 100. In these optional embodiments, the second light reflecting sublayer 310b and the second sublayer 320b are located on the side of the light conversion layer 400 away from the light emitting layer, and are used to reflect the large-angle light converted by the light conversion unit 410 to improve the light extraction efficiency.

[0119] The embodiment of the third aspect of the present application also provides a display device, including a display panel of any of the first aspect embodiments or a display panel prepared by the manufacturing method of the display panel of the second aspect embodiment. Since the display device provided by the embodiment of the third aspect of the present application includes the display panel of any of the first and second aspects, the display device provided by the embodiment of the third aspect of the present application has the beneficial effects of the display panel of any of the first and second aspects, which will not be described in detail here.

[0120] The display device in the embodiments of the present application includes but is not limited to mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, consoles, and other devices with display functions.

[0121] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A display panel, characterized in that: include: substrate; A light-emitting layer is disposed on one side of the substrate, and the light-emitting layer includes a plurality of light-emitting units disposed at intervals; A functional layer is arranged on the side of the light-emitting layer away from the substrate, the functional layer includes a light reflecting layer and a first packaging layer, the light reflecting layer includes a light reflecting component, the light reflecting components are enclosed to form a light outlet, the orthographic projection of the light outlet on the substrate and the orthographic projection of the light-emitting unit on the substrate at least partially overlap; the first packaging layer includes a plurality of first packaging parts, at least part of the first packaging parts are located at the light outlet.

2. The display panel according to claim 1, characterized in that: The functional layer further comprises a second encapsulation layer, which is located on a side of the first encapsulation layer facing the substrate and covers a side of the light reflecting component facing away from the substrate; And / or, the functional layer further includes a third encapsulation layer, the third encapsulation layer is located on a side of the first encapsulation layer and the light reflecting layer away from the substrate, and an orthographic projection of the third encapsulation layer on the substrate at least partially overlaps with an orthographic projection of the light reflecting component on the substrate; Preferably, the functional layer includes the second encapsulation layer and the third encapsulation layer, and the third encapsulation layer is located on a side of the second encapsulation layer away from the substrate; Preferably, the first encapsulation layer comprises an organic material; Preferably, the functional layer comprises a second encapsulation layer, and the second encapsulation layer comprises an inorganic material; Preferably, the functional layer comprises a third encapsulation layer, and the third encapsulation layer comprises an inorganic material.

3. The display panel according to claim 2, characterized in that: The functional layer includes the second encapsulation layer and the third encapsulation layer, the second encapsulation layer and the third encapsulation layer are in contact with each other on the side of the light reflecting component away from the substrate; and / or, the functional layer further includes a fourth encapsulation portion, the fourth encapsulation portion is located on the side of the light reflecting component away from the substrate and between the second encapsulation layer and the third encapsulation layer; Preferably, the fourth packaging part is made of the same material as the first packaging part.

4. The display panel according to claim 1, characterized in that: The display panel further comprises a light conversion layer and a filter layer sequentially arranged in a direction away from the substrate, the functional layer is located between the light conversion layer and the light emitting layer, and / or the functional layer is located between the light conversion layer and the filter layer.

5. The display panel according to claim 4, characterized in that: The first encapsulation layer includes a first sublayer located between the light conversion layer and the light emitting layer, and the light reflecting layer includes a first light reflecting sublayer located between the light conversion layer and the light emitting layer; The display panel further comprises a light shielding portion, the light shielding portion is located on a side of the first light reflecting sublayer away from the substrate, the light shielding portion encloses a light transmission port, the light conversion layer comprises a light conversion unit located at each of the light transmission ports, the light filter layer comprises a light filter unit located at each of the light transmission ports, the light filter unit is located on a side of the light conversion unit away from the substrate, and the orthographic projections of the light transmission port, the light conversion unit and the light filter unit on the substrate at least partially overlap with the orthographic projection of the light emitting unit on the substrate; Preferably, the light-transmitting opening includes a first opening, a second opening and a third opening, and the light conversion unit includes a first light conversion unit located at the first opening, a second light conversion unit located at the second opening and a third light conversion unit located at the third opening; Preferably, the filter unit comprises a first filter unit located at the first opening, a second filter unit located at the second opening, and a third filter unit located at the third opening; Preferably, the light emitting unit is used for emitting blue light, the third light conversion unit is made of a transparent material for transmitting the blue light, and the third light filtering unit is a blue light filtering unit.

6. The display panel according to claim 5, characterized in that: At least part of the filter unit is in contact with the light conversion unit; Preferably, the first light conversion unit is in contact with and connected to the first light filtering unit; and / or, the second light conversion unit is in contact with and connected to the second light filtering unit; and / or, the third light conversion unit is in contact with and connected to the third light filtering unit.

7. The display panel according to claim 5, characterized in that: The first encapsulation layer includes a second sublayer located between the light conversion layer and the light filter layer, and the light reflection layer includes a second light reflection sublayer located between the light conversion layer and the light filter layer; The light shielding portion includes a first light shielding portion located between the first light reflecting sublayer and the second light reflecting sublayer and a second light shielding portion located on a side of the second light reflecting sublayer away from the substrate, the light transmission port includes a first light transmission port formed by the first light shielding portion, the light conversion unit is located at the first light transmission port, the light transmission port also includes a second light transmission port formed by the second light shielding portion, and the filter unit is located at the second light transmission port; Preferably, the orthographic projection of the first light-transmitting opening on the substrate at least partially overlaps with the orthographic projection of the light-emitting unit on the substrate; Preferably, the orthographic projection of the second light-transmitting opening on the substrate at least partially overlaps with the orthographic projection of the light-emitting unit on the substrate; Preferably, the first light-transmitting opening includes a first sub-opening, a second sub-opening and a third sub-opening, and the light conversion unit includes the first light conversion unit located at the first sub-opening, the second light conversion unit located at the second sub-opening and the third light conversion unit located at the third sub-opening; Preferably, the second light-transmitting port includes a fourth sub-opening, a fifth sub-opening and a sixth sub-opening, and the filtering unit includes the first filtering unit located at the fourth sub-opening, the second filtering unit located at the fifth sub-opening and the third filtering unit located at the sixth sub-opening.

8. The display panel according to claim 1, characterized in that: The light reflecting layer comprises a plurality of light reflecting components, two adjacent light reflecting components are connected to each other, and / or two adjacent light reflecting components are arranged at intervals; Preferably, two adjacent light reflecting components are connected to each other to form a mesh structure.

9. The display panel according to claim 8, characterized in that: The plurality of light reflecting components are arranged at intervals from each other; Preferably, the plurality of light reflecting components are in a ring-shaped structure; Preferably, the first encapsulation layer is also located between at least part of the light reflecting components; Preferably, the dimension of the light reflecting component along the direction perpendicular to the thickness of the display panel is 1.5 micrometers to 2.3 micrometers; Preferably, a dimension of the light reflecting component along a thickness direction of the display panel is 0.8 micrometers to 1.2 micrometers.

10. The display panel according to claim 1, characterized in that: The display panel further comprises a pixel definition layer, the pixel definition layer comprises a pixel definition portion and a pixel opening formed by the pixel definition portion, and the light emitting unit is within the pixel opening; Preferably, an orthographic projection of the pixel defining portion on the substrate at least partially overlaps with an orthographic projection of the light reflecting component on the substrate.

11. A method for manufacturing a display panel, characterized in that: include: Forming a light-emitting layer on one side of the substrate, wherein the light-emitting layer includes a plurality of light-emitting units arranged at intervals; A light reflecting layer is formed on a side of the light emitting layer away from the substrate, the light reflecting layer comprises a light reflecting component, the light reflecting component encloses a light outlet, and an orthographic projection of the light outlet on the substrate at least partially overlaps with an orthographic projection of the light emitting unit on the substrate; A first encapsulation layer is formed on a side of the light-emitting layer away from the substrate, wherein the first encapsulation layer includes a plurality of first encapsulation parts, and at least part of the first encapsulation parts are located at the light outlet.

12. The manufacturing method according to claim 11, characterized in that: The manufacturing method further comprises: forming a light conversion layer on the first encapsulation layer and the light reflection layer on a side away from the substrate, the light conversion layer comprising a light conversion unit, and an orthographic projection of the light conversion unit on the substrate at least partially overlaps with an orthographic projection of the light outlet on the substrate; Preferably, the first encapsulation layer includes a first sublayer located between the light conversion layer and the light emitting layer, the light reflecting layer includes a first light reflecting sublayer located between the light conversion layer and the light emitting layer, and the manufacturing method further includes: A second sublayer of the first encapsulation layer and a second light reflecting sublayer of the light reflecting layer are formed on the side of the light conversion layer away from the substrate, and a light reflecting component located on the second light reflecting sublayer encloses a light outlet, and an orthographic projection of the light outlet located on the second light reflecting sublayer on the substrate at least partially overlaps with an orthographic projection of the light emitting unit on the substrate.

13. A display device, characterized in that: A display panel comprising the display panel according to any one of claims 1 to 10, or a display panel prepared by the method for manufacturing a display panel according to any one of claims 11 to 12.

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