Display panel, display device and manufacturing method of display panel

Abstract

The invention discloses a display panel, a display device and a manufacturing method of the display panel. The display panel includes: a substrate; the light-emitting functional layer is arranged on one side of the substrate; the total reflection packaging layer is arranged on the side, away from the substrate, of the light-emitting functional layer, and the total reflection packaging layer comprises a total reflection functional layer and a packaging functional layer which are integrated with each other and stacked in the thickness direction of the total reflection packaging layer. According to the display panel, the display device and the manufacturing method of the display panel, the brightness of the display panel can be improved.

Description

Technical Field

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

[0002] In display panels, more film layers are usually set on the light-emitting side of the light-emitting layer, especially when a touch film layer is embedded in the display panel. In order to improve the transmittance, an anti-reflection layer is set on the encapsulation layer of the display panel, for example, when a touch film layer is embedded, an anti-reflection layer is set. However, part of the light emitted from the light-emitting layer will still be refracted or reflected before entering the anti-reflection layer, making it difficult to emit from the anti-reflection layer, thereby affecting the light anti-reflection efficiency of the anti-reflection layer. Summary of the invention

[0003] The embodiments of the present application provide a display panel, a display device, and a method for manufacturing a display panel, which can improve the brightness of the display panel.

[0004] In a first aspect, an embodiment of the present application provides a display panel, comprising: a substrate; a light-emitting functional layer, arranged on one side of the substrate; a total reflection packaging layer, arranged on the side of the light-emitting functional layer away from the substrate, the total reflection packaging layer comprising a total reflection functional layer and a packaging functional layer that are integrated with each other and stacked along the thickness direction of the total reflection packaging layer.

[0005] In a second aspect, an embodiment of the present application provides a display device, comprising the display panel of an embodiment of the first aspect of the present application.

[0006] In a third aspect, an embodiment of the present application provides a method for manufacturing a display panel, including: providing a substrate; manufacturing a light-emitting functional layer on one side of the substrate; manufacturing a total reflection packaging layer on the side of the light-emitting functional layer facing away from the substrate; the total reflection packaging layer includes a total reflection functional layer and an packaging functional layer.

[0007] In the display panel, display device and display panel manufacturing method provided in the embodiments of the present application, the total reflection functional layer and the encapsulation functional layer of the total reflection encapsulation layer are stacked and integrated with each other. Under the premise of meeting the encapsulation requirements, the distance between the light-emitting functional layer and the total reflection functional layer can be reduced, thereby reducing the reflection and / or refraction of the light emitted by the light-emitting functional layer before entering the total reflection functional layer, thereby allowing more light to enter the total reflection functional layer and improving the brightness of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0009] Figure 1 A simplified schematic diagram of the interlayer structure of the display panel according to an embodiment of the present application.

[0010] Figure 2 Another simplified schematic diagram of the interlayer structure of the display panel according to an embodiment of the present application.

[0011] Figure 3 Another simplified schematic diagram of the interlayer structure of the display panel according to an embodiment of the present application.

[0012] Figure 4 Another simplified schematic diagram of the interlayer structure of the display panel according to an embodiment of the present application.

[0013] Figure 5 A specific schematic diagram of the interlayer structure of the display panel according to an embodiment of the present application.

[0014] Figure 6 Another specific schematic diagram of the interlayer structure of the display panel according to an embodiment of the present application.

[0015] Figure 7 Another specific schematic diagram of the interlayer structure of the display panel according to an embodiment of the present application.

[0016] Figure 8 Another specific schematic diagram of the interlayer structure of the display panel according to an embodiment of the present application.

[0017] Fig. 9 Another specific schematic diagram of the interlayer structure of the display panel according to an embodiment of the present application.

[0018] Fig.10 Another specific schematic diagram of the interlayer structure of the display panel according to an embodiment of the present application.

[0019] Fig.11 Another specific schematic diagram of the interlayer structure of the display panel according to an embodiment of the present application.

[0020] Fig.12 Another specific schematic diagram of the interlayer structure of the display panel according to an embodiment of the present application.

[0021] Fig.13 A schematic diagram of the structure of a display device according to an embodiment of the present application.

[0022] Fig.14 A schematic diagram of a process of manufacturing a display panel according to an embodiment of the present application.

[0023] Fig.15 A schematic flow chart of step S3 of the method for manufacturing a display panel according to an embodiment of the present application.

[0024] Fig.16 A simplified schematic diagram of the interlayer structure of a display panel obtained by the method for manufacturing a display panel according to an embodiment of the present application.

[0025] Fig.17 Another schematic flow chart of step S3 of the method for manufacturing a display panel according to an embodiment of the present application.

[0026] Fig.18 Another simplified schematic diagram of the interlayer structure of a display panel obtained by the method for manufacturing a display panel according to an embodiment of the present application.

[0027] Fig.19 Another schematic flow chart of step S3 of the method for manufacturing a display panel according to an embodiment of the present application.

[0028] Fig. 20 Another simplified schematic diagram of the interlayer structure of a display panel obtained by the method for manufacturing a display panel according to an embodiment of the present application.

[0029] Reference numerals:

[0030] 1. Substrate;

[0031] 2. Array layer; 21. Thin film transistor;

[0032] 3. Light-emitting functional layer; 31. Light-emitting device;

[0033] 4. Pixel definition layer; 41. Pixel opening;

[0034] 5. Total reflection encapsulation layer; 51. Total reflection functional layer; 511. Low refractive index layer; 511a. Low refractive index unit; 511b. Low refractive index opening; 512. High refractive index layer; 52. Encapsulation functional layer; 521. First encapsulation material layer; 522. Second encapsulation material layer; 523. Third encapsulation material layer;

[0035] 6. Touch layer;

[0036] 100. Display device; 200. Display panel. DETAILED DESCRIPTION

[0037] The features and exemplary embodiments of various aspects of the application will be described in detail below. In the detailed description below, many specific details are proposed to provide a comprehensive understanding of the application. However, it is obvious to those skilled in the art that the application can be implemented when some details in these specific details are not needed. The following description of the embodiments is only to provide a better understanding of the application by illustrating the example of the application.

[0038] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The embodiments will be described in detail below in conjunction with the accompanying drawings.

[0039] Relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements that are inherent to such process, method, article, or device. In the absence of further restrictions, the elements defined by the statement "comprising ..." do not exclude the presence of additional identical elements in the process, method, article, or device that includes the elements.

[0040] It should be understood that when describing the structure of a component, when a layer or a region is referred to as being "on" or "over" another layer or another region, it may mean that it is directly on the other layer or another region, or that other layers or regions are included between it and the other layer or another region. Moreover, if the component is turned over, the layer or a region will be "below" or "beneath" another layer or another region.

[0041] In addition, the term "and / or" in this article is only a description of the association relationship between the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0042] It should be understood that in the embodiment of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0043] The applicant discovered that in order to increase the brightness of the display panel, an anti-reflection layer is provided, and the anti-reflection layer is used to enable more light emitted by the light-emitting device to be emitted from the light-emitting side of the display panel. For example, a total reflection layer is made on the light-emitting side of the display panel, so that light that enters the total reflection layer at a large angle can be totally reflected in the total reflection layer, and then this part of the light can be emitted from the light-emitting side in a direction closer to vertical to the display panel. However, some light will still be refracted or totally reflected between the anti-reflection layer and the light-emitting device layer at a larger angle. It is difficult for this part of light to enter the anti-reflection layer, so it is difficult to be fully used for display and light emission, which limits the effect of the anti-reflection layer. In particular, when a touch layer is embedded in the display panel, the touch layer will further increase the thickness of the film layer between the anti-reflection layer and the light-emitting device, so that less light enters the anti-reflection layer, affecting the anti-reflection effect of the anti-reflection layer and reducing the brightness of the display panel.

[0044] In view of the above problems, the applicant has proposed a display panel, a display device and a method for manufacturing a display panel. The display panel includes a substrate, a light-emitting functional layer and a total reflection encapsulation layer. The total reflection encapsulation layer includes a total reflection functional layer and an encapsulation functional layer. The encapsulation functional layer can encapsulate the light-emitting functional layer and protect the light-emitting functional layer. The total reflection functional layer can cause large-angle light entering the total reflection functional layer to be totally reflected, increase the transmittance of light, and thus improve the brightness of the display panel. Since the total reflection functional layer and the encapsulation functional layer are stacked and integrated with each other, the film thickness between the total reflection functional layer and the light-emitting functional layer can be reduced, and the reflection and / or refraction of light emitted by the light-emitting functional layer before entering the total reflection functional layer can be reduced, so that more light can enter the total reflection functional layer, and after the total reflection function is enhanced, the brightness of the display panel is improved.

[0045] Figure 1 A simplified schematic diagram of the interlayer structure of the display panel according to an embodiment of the present application. Figure 2 Another simplified schematic diagram of the interlayer structure of the display panel according to an embodiment of the present application. Figure 3 Another simplified schematic diagram of the interlayer structure of the display panel according to an embodiment of the present application. Figure 4 Another simplified schematic diagram of the interlayer structure of the display panel according to an embodiment of the present application. Figure 5 A specific schematic diagram of the interlayer structure of the display panel according to an embodiment of the present application.

[0046] See also Figures 1 to 5 The embodiment of the present application provides a display panel, comprising a substrate 1, a light-emitting functional layer 3 and a total reflection encapsulation layer 5. The light-emitting functional layer 3 is arranged on one side of the substrate 1; the total reflection encapsulation layer 5 is arranged on the side of the light-emitting functional layer 3 away from the substrate 1, and the total reflection encapsulation layer 5 comprises a total reflection functional layer 51 and an encapsulation functional layer 52 which are integrated with each other and stacked along the thickness direction of the total reflection encapsulation layer 5.

[0047] The substrate 1 may be formed of a polymer material such as glass, polyimide (PI), polycarbonate (PC), polyethersulfone (PES), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyarylate (PAR), or fiberglass reinforced plastic (FRP). The substrate 1 may be transparent, translucent, or opaque.

[0048] An array layer 2 is provided on one side of the substrate 1, and the array layer 2 includes a plurality of thin film transistors 21 (TFTs) and a pixel circuit formed by the thin film transistors 21, and the pixel circuit is used to control the light-emitting functional layer 3 to display light. The embodiment of the present application takes the top-gate thin film transistor 21 as an example for structural description. The array layer 120 includes an active layer for forming the thin film transistor 21; a gate insulating layer located on the active layer; a gate of the thin film transistor 21 located on the gate insulating layer; an interlayer insulating layer located on the gate; and a source and a drain located on the interlayer insulating layer.

[0049] The light-emitting functional layer 3 is arranged on the side of the array layer 2 away from the substrate 1, and can emit light in the form of an organic light-emitting diode (OLED) or a micro light-emitting diode (Micro-LED). For ease of explanation, in the embodiment of the present application, the light-emitting functional layer 3 emits light in the form of an organic light-emitting diode (OLED).

[0050] The total reflection encapsulation layer 5 is arranged on the side of the light-emitting functional layer 3 away from the substrate 1. The encapsulation functional layer 52 of the total reflection encapsulation layer 5 can encapsulate the light-emitting functional layer 3 to prevent water vapor from entering the light-emitting functional layer 3. The total reflection functional layer 51 can increase the transmittance of light. Among the light emitted from the light-emitting functional layer, a part of the light will enter the total reflection functional layer 51 in a direction close to perpendicular to the total reflection functional layer 51 and be emitted from the total reflection functional layer 51, and a part of the light will enter the total reflection functional layer 51 at a larger angle, and be totally reflected in the total reflection functional layer 51, and be emitted from the total reflection functional layer 51 in a direction close to perpendicular to the total reflection functional layer 51, thereby increasing the transmittance of light.

[0051] In addition, along the thickness direction of the total reflection encapsulation layer 5, the total reflection functional layer 51 and the encapsulation functional layer 52 are stacked and integrated with each other. The two can be two stacked layers or partially reused. It can be understood that at least part of the encapsulation functional layer 52 is located on the side of at least part of the total reflection functional layer 51 facing the substrate 1 to reduce the impact on the encapsulation effect of the encapsulation functional layer 52. At the same time, the total reflection functional layer 51 and the encapsulation functional layer 52 are integrated with each other, reducing the film thickness between the total reflection functional layer 51 and the luminous functional layer 3, thereby enabling less light to be reflected and refracted between the total reflection functional layer 51 and the luminous functional layer 3, allowing more light to enter the total reflection functional layer 51, thereby allowing more light to be emitted from the total reflection functional layer 51, for display luminescence of the display panel of the embodiment of the present application.

[0052] Figure 6 Another specific schematic diagram of the interlayer structure of the display panel according to an embodiment of the present application.

[0053] For further information, see Figure 6 The light-emitting functional layer 3 includes a plurality of light-emitting devices 31; the total reflection functional layer 51 includes a low refractive index layer 511 and a high refractive index layer 512; the low refractive index layer 511 includes a plurality of low refractive index units 511a and a plurality of low refractive index openings 511b; the low refractive index units 511a surround the low refractive index openings 511b; the low refractive index layer 511 is arranged on the side of the light-emitting functional layer 3 away from the substrate 1; the high refractive index layer 512 covers the low refractive index units 511a and the low refractive index openings 511b; along the thickness direction, the orthographic projection of the low refractive index unit 511a does not overlap with the orthographic projection of the light-emitting device 31.

[0054] In the embodiment of the present application, the light emitting device 31 is taken as an organic light emitting diode (OLED) for example. The light emitting device 31 includes an anode, an organic light emitting layer and a cathode stacked in sequence. The anode can be connected to the pixel circuit of the array layer 2.

[0055] The total reflection functional layer 51 includes a low refractive index layer 511 and a high refractive index layer 512. The low refractive index unit 511a surrounds the low refractive index opening 511b, and the high refractive index layer 512 covers the low refractive index unit 511a and the low refractive index opening 511b. In the thickness direction, the orthographic projection of the low refractive index unit 511a does not overlap with the orthographic projection of the light emitting device 31, that is, the orthographic projection of the light emitting device 31 is located at the orthographic projection of the low refractive index opening 511b, and the low refractive index layer 511 will not block the light emitting device 31. Therefore, among the light emitted by the light emitting device 31, more light can be incident on the high refractive index layer 512 from the low refractive index opening 511b. Among this part of the light, a part with a large angle relative to the thickness direction of the display panel will be totally reflected at the side wall of the low refractive index opening 511b, and will be emitted from the high refractive index layer 512 at a small angle. When the display panel of the embodiment of the present application is observed in a thickness direction close to the display panel, the brightness of the display panel can be improved.

[0056] Further, see Figure 6 The display panel of the embodiment of the present application further includes a pixel definition layer 4, which is provided with a plurality of pixel openings 41, and the light-emitting device 31 is located at the pixel opening 41; along the thickness direction, the orthographic projection of the low refractive index opening 511b is staggered with the orthographic projection of the pixel opening 41.

[0057] The light emitting device 31 is arranged at the pixel opening 41 of the pixel definition layer 4. It can be understood that the cross-sectional shape of the pixel opening 41 is an inverted trapezoid along the thickness direction of the display panel. The orthographic projection of the low refractive index opening 511b is staggered with the orthographic projection of the pixel opening 41, that is, the orthographic projection of the low refractive index opening 511b is larger than the orthographic projection of the pixel opening 41, so there is a gap between the edge of the orthographic projection of the low refractive index opening 511b and the edge of the orthographic projection of the light emitting device 31, which reduces the shielding of the light emitting device 31 by the low refractive index layer 511. Therefore, a larger proportion of the light emitted by the light emitting device 31 can enter the low refractive index opening 511b and enter the high refractive index layer 512.

[0058] Further, see Figure 6 In the total reflection packaging layer 5, the packaging functional layer 52 is arranged on the side of the total reflection functional layer 51 facing the substrate 1. At this time, the packaging functional layer 52 and the total reflection functional layer 51 are in direct contact. Considering that other functional film layers may be provided in the display panel, such as the touch layer 6, these functional film layers can be arranged on the side of the total reflection packaging layer 5 away from the substrate 1, thereby reducing the influence of these functional film layers on the distance between the total reflection functional layer 51 and the light-emitting functional layer 3, so that a larger portion of the light emitted by the light-emitting device 31 can enter the total reflection functional layer 51, thereby improving the brightness of the display panel of the embodiment of the present application.

[0059] Figure 7 Another specific schematic diagram of the interlayer structure of the display panel according to an embodiment of the present application.

[0060] For further information, see Figure 7 In the total reflection packaging layer 5, the packaging functional layer 52 is arranged on the side of the total reflection functional layer 51 away from the substrate 1, which reduces the number of film layers between the total reflection functional layer 51 and the light-emitting functional layer 3. Under the premise that the thickness of each film layer is determined, the distance between the total reflection functional layer 51 and the light-emitting functional layer 3 can be reduced, so that more of the light emitted by the light-emitting device 31 can enter the total reflection functional layer 51, thereby improving the brightness of the display panel of the embodiment of the present application.

[0061] Figure 8 Another specific schematic diagram of the interlayer structure of the display panel according to an embodiment of the present application.

[0062] For further information, see Figure 8 The total reflection functional layer 51 includes a low refractive index layer 511 and a high refractive index layer 512. The low refractive index layer 511 is arranged on the side of the light-emitting functional layer 3 away from the substrate 1, and the high refractive index layer 512 covers the low refractive index layer 511; the encapsulation functional layer 52 includes a first encapsulation material layer 521, a second encapsulation material layer 522 and a third encapsulation material layer 523 stacked in sequence, and the second encapsulation material layer 522 is arranged on the side of the first encapsulation material layer 521 away from the substrate 1.

[0063] The specific structure of the total reflection functional layer 51 has been described in the previous embodiments of the present application and will not be repeated here.

[0064] The encapsulation function layer 52 is in the form of three layers stacked, and the first encapsulation material layer 521 and the third encapsulation material layer 523 can be made by inkjet printing. The second encapsulation material layer 522 can be made by vapor deposition. The three-layer stacked encapsulation function layer 52 has better water vapor barrier capability. At this time, the distance between the total reflection function layer 51 and the light-emitting function layer 3 is related to the sum of the thicknesses of the first encapsulation material layer 521, the second encapsulation material layer 522 and the third encapsulation material layer 523.

[0065] Fig. 9 Another specific schematic diagram of the interlayer structure of the display panel according to an embodiment of the present application.

[0066] For further information, see Fig. 9 , the high refractive index layer 512 is reused as the first packaging material layer 521.

[0067] Considering that the material of the first packaging material layer 521 can be the same as that of the high refractive index layer 512, the two can be reused and made using the same process. At this time, a portion of the packaging function layer 52 is located between the total reflection function layer 51 and the light-emitting function layer 3, and the distance between the total reflection function layer 51 and the light-emitting function layer 3 is related to the sum of the thicknesses of the second packaging material layer 522 and the third packaging material layer 523, which can reduce the distance between the total reflection function layer 51 and the light-emitting function layer 3, so that more light can enter the total reflection function layer 51, thereby improving the brightness of the display panel of the embodiment of the present application.

[0068] Fig.10 Another specific schematic diagram of the interlayer structure of the display panel according to an embodiment of the present application.

[0069] Fig.11 Another specific schematic diagram of the interlayer structure of the display panel according to an embodiment of the present application.

[0070] For further information, see Fig.10 and Fig.11 The encapsulation function layer 52 includes a first encapsulation material layer 521 and a third encapsulation material layer 523 . The third encapsulation material layer 523 is arranged on the side of the first encapsulation material layer 521 away from the substrate 1 . The total reflection function layer 51 is arranged between the first encapsulation material layer 521 and the third encapsulation material layer 523 .

[0071] The total reflection functional layer 51 is embedded in the interior of the encapsulation functional layer 52, so that the third encapsulation material layer 523 is located on the side of the total reflection functional layer 51 away from the substrate 1. Therefore, the distance between the total reflection functional layer 51 and the luminous functional layer 3 is related to the sum of the thicknesses of the second encapsulation material layer 522 and the first encapsulation material layer 521. The distance between the total reflection functional layer 51 and the luminous functional layer 3 can be reduced, so that more light can enter the total reflection functional layer 51, thereby improving the brightness of the display panel of the embodiment of the present application.

[0072] Further, see Fig.10 and Fig.11 The encapsulation functional layer 52 also includes a second encapsulation material layer 522, which is located between the first encapsulation material layer 521 and the third encapsulation material layer 523; the second encapsulation material layer 522 is arranged on the side of the total reflection functional layer 51 away from the substrate 1; or, the second encapsulation material layer 522 is arranged on the side of the total reflection functional layer 51 facing the substrate 1.

[0073] When the second packaging material layer 522 is arranged on the side of the total reflection functional layer 51 facing the substrate 1, the distance between the total reflection functional layer 51 and the luminescent functional layer 3 is related to the sum of the thicknesses of the second packaging material layer 522 and the first packaging material layer 521, which can reduce the distance between the total reflection functional layer 51 and the luminescent functional layer 3, so that more light can enter the total reflection functional layer 51, thereby improving the brightness of the display panel of the embodiment of the present application.

[0074] When the second packaging material layer 522 is arranged on the side of the total reflection functional layer 51 away from the substrate 1, the distance between the total reflection functional layer 51 and the luminescent functional layer 3 is related to the thickness of the first packaging material layer 521, which can further reduce the distance between the total reflection functional layer 51 and the luminescent functional layer 3, so that more light can enter the total reflection functional layer 51, thereby further improving the brightness of the display panel of the embodiment of the present application.

[0075] Fig.12 Another specific schematic diagram of the interlayer structure of the display panel according to an embodiment of the present application.

[0076] For further information, see Fig.12 The display panel of the embodiment of the present application further includes a touch layer 6 , which is disposed on a side of the total reflection packaging layer 5 facing away from the substrate 1 .

[0077] The touch layer 6 enables the display panel of the embodiment of the present application to have a touch function, forming a touch display panel, that is, the display panel of the embodiment of the present application is embedded with the touch layer 6. The touch layer 6 is arranged on the side of the total reflection encapsulation layer 5 away from the substrate 1, so that the touch layer 6 does not significantly affect the distance between the total reflection function layer 51 and the light emitting function layer 3. Under the premise that the total reflection encapsulation layer 5 can reduce the distance between the total reflection function layer 51 and the light emitting function layer 3, the touch display panel of the embodiment of the present application can reduce the distance between the total reflection function layer 51 and the light emitting function layer 3, thereby improving the brightness of the touch display panel.

[0078] Fig.13 A schematic diagram of the structure of a display device according to an embodiment of the present application.

[0079] See also Fig.13 The embodiment of the present application also provides a display device 100, including the display panel 200 of the aforementioned embodiment of the present application. The display device 100 provided in the embodiment of the present application can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, etc.

[0080] Fig.14 A schematic diagram of a process of manufacturing a display panel according to an embodiment of the present application.

[0081] See also Fig.14 The present application also provides a method for manufacturing a display panel, which can be used to manufacture the display panel 200 of the above-mentioned embodiment of the present application. Fig.14 , the manufacturing method of the display panel of the embodiment of the present application includes:

[0082] Step S1, providing a substrate 1.

[0083] The substrate 1 may be manufactured, or the finished product of the substrate 1 may be directly obtained.

[0084] Step S2, preparing the light-emitting functional layer 3.

[0085] A light-emitting functional layer 3 is fabricated on one side of the substrate 1 . For example, the light-emitting functional layer 3 may be in the form of an organic light-emitting diode (OLED) to display light.

[0086] Step S3, manufacturing a total reflection packaging layer 5.

[0087] A total reflection encapsulation layer 5 is fabricated on the side of the light emitting functional layer 3 facing away from the substrate 1. The total reflection encapsulation layer 5 includes a total reflection functional layer 51 and an encapsulation functional layer 52. The reflection functional layer and the encapsulation functional layer 52 can be fabricated layer by layer. When some film layers of the reflection functional layer and the encapsulation functional layer 52 are reused, the reused film layers can also be fabricated synchronously.

[0088] Fig.15 A schematic flow chart of step S3 of the method for manufacturing a display panel according to an embodiment of the present application. Fig.16 A simplified schematic diagram of the interlayer structure of a display panel obtained by the method for manufacturing a display panel according to an embodiment of the present application.

[0089] For further information, see Fig.15 and Fig.16 , step S3 comprises:

[0090] Step S31 , manufacturing a total reflection functional layer 51 .

[0091] The low refractive index layer 511 is manufactured by inkjet printing, and the high refractive index layer 512 is manufactured by coating or inkjet printing. The high refractive index layer 512 covers the low refractive index layer 511 ; the low refractive index layer 511 and the high refractive index layer 512 form a total reflection functional layer 51 .

[0092] Step S32 , manufacturing the encapsulation functional layer 52 .

[0093] The encapsulation functional layer 52 is formed on the side of the high refractive index layer 512 facing away from the substrate 1 .

[0094] At this time, in the display panel 200 obtained by the manufacturing method of the display panel of the embodiment of the present application, the total reflection functional layer 51 and the encapsulation functional layer 52 are independent of each other, and the encapsulation functional layer 52 is located on the side of the total reflection functional layer 51 away from the substrate 1.

[0095] Fig.17 Another schematic flow chart of step S3 of the method for manufacturing a display panel according to an embodiment of the present application. Fig.18 Another simplified schematic diagram of the interlayer structure of a display panel obtained by the method for manufacturing a display panel according to an embodiment of the present application.

[0096] For further information, see Fig.17 and Fig.18 , step S3 comprises:

[0097] Step S31 , manufacturing the encapsulation functional layer 52 .

[0098] On one side of the substrate 1 , a packaging functional layer 52 is formed.

[0099] Step S32: manufacturing the total reflection functional layer 51.

[0100] On the side of the encapsulation functional layer 52 facing away from the substrate 1 , a low refractive index layer 511 is manufactured by etching or inkjet printing, and a high refractive index layer 512 is manufactured by coating or inkjet printing; the low refractive index layer 511 and the high refractive index layer 512 form a total reflection functional layer 51 .

[0101] At this time, in the display panel 200 obtained by the manufacturing method of the display panel of the embodiment of the present application, the total reflection functional layer 51 and the encapsulation functional layer 52 are independent of each other, and the encapsulation functional layer 52 is located on the side of the total reflection functional layer 51 facing the substrate 1.

[0102] Fig.19 Another schematic flow chart of step S3 of the method for manufacturing a display panel according to an embodiment of the present application. Fig. 20 Another simplified schematic diagram of the interlayer structure of a display panel obtained by the method for manufacturing a display panel according to an embodiment of the present application.

[0103] For further information, see Fig.19 and Fig. 20 , step S3 comprises:

[0104] Step S31 , manufacturing a first packaging material layer 521 .

[0105] On one side of the substrate 1 , a first packaging material layer 521 is manufactured by inkjet printing.

[0106] Step S32 , manufacturing a second packaging material layer 522 .

[0107] A second packaging material layer 522 is formed on a side of the first packaging material layer 521 facing away from the substrate 1 .

[0108] Step S33: manufacturing the total reflection functional layer 51.

[0109] On the side of the second packaging material layer 522 facing away from the substrate 1, a low refractive index layer 511 is formed by etching or inkjet printing, and a high refractive index layer 512 is formed by coating or inkjet printing; the low refractive index layer 511 and the high refractive index layer 512 form a total reflection functional layer 51.

[0110] Step S34 , manufacturing a third packaging material layer 523 .

[0111] A third packaging material layer 523 is formed on the side of the high refractive index layer 512 facing away from the substrate 1 ; the first packaging material layer 521 , the second packaging material layer 522 and the third packaging material layer 523 form a packaging function layer 52 .

[0112] At this time, in the display panel 200 obtained by the method for manufacturing a display panel according to the embodiment of the present application, the total reflection function layer 51 is embedded in the encapsulation function layer 52 .

[0113] In summary, the embodiments of the present application provide a display panel, a display device, and a method for manufacturing a display panel. The display panel includes a substrate, a light-emitting functional layer, and a total reflection encapsulation layer. The total reflection encapsulation layer includes a total reflection functional layer and an encapsulation functional layer. The encapsulation functional layer can encapsulate the light-emitting functional layer and protect the light-emitting functional layer. The total reflection functional layer can cause large-angle light entering the total reflection functional layer to be totally reflected, increase the transmittance of light, and thus improve the brightness of the display panel. Since the total reflection functional layer and the encapsulation functional layer are stacked and integrated with each other, the film thickness between the total reflection functional layer and the light-emitting functional layer can be reduced, and the reflection and / or refraction of light emitted by the light-emitting functional layer before entering the total reflection functional layer can be reduced, so that more light can enter the total reflection functional layer, and after the total reflection function is enhanced, the brightness of the display panel is improved.

[0114] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A display panel, characterized in that: include: substrate; A light-emitting functional layer is disposed on one side of the substrate; The total reflection packaging layer is arranged on the side of the light-emitting functional layer away from the substrate, and the total reflection packaging layer includes a total reflection functional layer and a packaging functional layer which are integrated with each other and stacked along the thickness direction of the total reflection packaging layer.

2. The display panel according to claim 1, characterized in that: The light-emitting functional layer includes a plurality of light-emitting devices; The total reflection functional layer comprises a low refractive index layer and a high refractive index layer, the low refractive index layer comprises a plurality of low refractive index units and a plurality of low refractive index openings, the low refractive index units surround the low refractive index openings, the low refractive index layer is arranged on a side of the light-emitting functional layer away from the substrate, and the high refractive index layer covers the low refractive index units and the low refractive index openings; Along the thickness direction, the orthographic projection of the low refractive index unit and the orthographic projection of the light emitting device do not overlap with each other.

3. The display panel according to claim 2, characterized in that: It also includes a pixel definition layer, wherein the pixel definition layer is provided with a plurality of pixel openings, and the light emitting device is located in the pixel openings; Along the thickness direction, the orthographic projection of the low refractive index opening and the orthographic projection of the pixel opening are staggered and distributed.

4. The display panel according to claim 1, characterized in that: In the total reflection packaging layer, the packaging function layer is arranged on a side of the total reflection function layer facing the substrate.

5. The display panel according to claim 1, characterized in that: In the total reflection packaging layer, the packaging function layer is arranged on a side of the total reflection function layer away from the substrate.

6. The display panel according to claim 5, characterized in that: The total reflection functional layer comprises a low refractive index layer and a high refractive index layer, wherein the low refractive index layer is arranged on a side of the light-emitting functional layer away from the substrate, and the high refractive index layer covers the low refractive index layer; The encapsulation function layer comprises a first encapsulation material layer, a second encapsulation material layer and a third encapsulation material layer stacked in sequence, and the second encapsulation material layer is arranged on a side of the first encapsulation material layer away from the substrate.

7. The display panel according to claim 6, characterized in that: The high refractive index layer is reused as the first packaging material layer.

8. The display panel according to claim 1, characterized in that: The packaging function layer includes a first packaging material layer and a third packaging material layer. The third packaging material layer is arranged on a side of the first packaging material layer away from the substrate. The total reflection function layer is arranged between the first packaging material layer and the third packaging material layer.

9. The display panel according to claim 8, characterized in that: The encapsulation function layer further includes a second encapsulation material layer, and the second encapsulation material layer is located between the first encapsulation material layer and the third encapsulation material layer; The second packaging material layer is disposed on a side of the total reflection functional layer facing away from the substrate; or, the second packaging material layer is disposed on a side of the total reflection functional layer facing the substrate.

10. The display panel according to claim 1, characterized in that: It also includes a touch layer, which is arranged on a side of the total reflection packaging layer away from the substrate.

11. A display device, characterized in that: A display panel comprising any one of claims 1 to 9.

12. A method for manufacturing a display panel, characterized in that: include: providing a substrate; A light-emitting functional layer is formed on one side of the substrate; A total reflection encapsulation layer is formed on a side of the light-emitting functional layer away from the substrate; The total reflection encapsulation layer includes a total reflection functional layer and an encapsulation functional layer.

13. The method for manufacturing a display panel according to claim 12, characterized in that: Producing a fully reflective encapsulation layer, including: A low refractive index layer is manufactured by inkjet printing, and a high refractive index layer is manufactured by coating or inkjet printing, wherein the high refractive index layer covers the low refractive index layer; the low refractive index layer and the high refractive index layer form the total reflection functional layer; A packaging functional layer is formed on a side of the high refractive index layer facing away from the substrate.

14. The method for manufacturing a display panel according to claim 12, wherein: Producing a fully reflective encapsulation layer, including: Making a packaging functional layer; On the side of the encapsulation functional layer away from the substrate, a low refractive index layer is manufactured by etching or inkjet printing, and a high refractive index layer is manufactured by coating or inkjet printing; the low refractive index layer and the high refractive index layer form the total reflection functional layer.

15. The method for manufacturing a display panel according to claim 12, characterized in that: Producing a fully reflective encapsulation layer, including: manufacturing a first packaging material layer; Forming a second packaging material layer on a side of the first packaging material layer away from the substrate; On the side of the second packaging material layer away from the substrate, a low refractive index layer is formed by etching or inkjet printing, and a high refractive index layer is formed by coating or inkjet printing; the low refractive index layer and the high refractive index layer form the total reflection functional layer; A third packaging material layer is formed on a side of the high refractive index layer away from the substrate; the first packaging material layer, the second packaging material layer and the third packaging material layer form the packaging function layer.

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