Display panel, display device and manufacturing method of display panel

Abstract

The invention relates to a display panel, a display device and a manufacturing method of the display panel. The display panel comprises a substrate, a pixel definition layer, a light-emitting unit, a packaging layer, a reflecting layer and a touch wiring layer which are arranged in a stacked mode. The orthographic projection of the reflecting layer on the substrate and the orthographic projection of the opening area on the substrate are not overlapped, the reflecting layer comprises a first reflecting surface close to one side of the substrate, and the first reflecting surface is used for reflecting part of light emitted by the light emitting unit. The touch wiring layer is located on the side, away from the substrate, of the reflecting layer, and the orthographic projection of the touch wiring layer on the substrate falls into the orthographic projection of the reflecting layer on the substrate. According to the display panel, the reflecting layer is arranged between the packaging layer and the touch control wiring layer, and the reflecting layer is matched with the touch control wiring layer, so that most of light rays emitted by the light emitting units in the large-viewing-angle display direction can be reflected, and narrow-viewing-angle display of the display panel is achieved.

Description

Technical Field

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

[0002] OLED (Organic Light Emitting Display) is widely used in the field of display technology because of its advantages such as self-luminescence, high brightness, high resolution, wide viewing angle, fast response speed and flexibility.

[0003] Although the light-emitting characteristics of OLED light-emitting elements enable OLED display panels to have a wider viewing angle, in certain usage scenarios, users also have the need to narrow the viewing angle of the OLED display panel as needed to prevent screen information leakage, thereby protecting business secrets and personal privacy.

[0004] Currently, the realization of narrow viewing angle requires passively attaching LCF (light control film) on the display panel to achieve narrow viewing angle display. However, this method not only increases the thickness of the display and affects the user experience, but also increases the production or use cost of the display. Summary of the invention

[0005] In order to solve the above problems, the present application provides a display panel, which includes:

[0006] substrate;

[0007] A pixel definition layer located on the substrate; the pixel definition layer includes a plurality of opening areas, and light-emitting units are arranged in the opening areas;

[0008] an encapsulation layer located on a side of the light emitting unit away from the substrate;

[0009] a reflective layer located on a side of the encapsulation layer away from the substrate, wherein an orthographic projection of the reflective layer on the substrate does not overlap with an orthographic projection of the opening area on the substrate, and wherein the reflective layer comprises a first reflective surface close to a side of the substrate, and wherein the first reflective surface is used to reflect a portion of light emitted by the light-emitting unit;

[0010] The touch wiring layer is located at a side of the reflective layer away from the substrate, and the orthographic projection of the touch wiring layer on the substrate falls within the orthographic projection of the reflective layer on the substrate.

[0011] In one embodiment, the reflective layer is made of insulating material.

[0012] In one embodiment, the material of the reflective layer is selected from polyethylene terephthalate and polypropylene.

[0013] In one embodiment, the reflective layer includes a main core layer and a first sub-reflective layer and a second sub-reflective layer located on both sides of the main core layer; wherein,

[0014] The density of the main core layer is smaller than that of the first sub-reflection layer and the second sub-reflection layer.

[0015] In one of the embodiments, the line width of the reflective layer in a direction perpendicular to its own extension direction is 2-10 μm greater than the line width of the touch wiring layer in a direction perpendicular to its own extension direction.

[0016] In one of the embodiments, the reflective layer further includes a second reflective surface away from the substrate, and a reinforcing layer is disposed on the second reflective surface.

[0017] In one embodiment, the reinforcement layer is made of insulating material; or;

[0018] The reinforcement layer is made of metal material.

[0019] The present application also provides a display device, comprising a display panel as mentioned in any of the above embodiments.

[0020] The present application also provides a method for manufacturing a display panel, comprising:

[0021] providing a substrate;

[0022] A pixel definition layer and a light-emitting unit are sequentially formed on the substrate, wherein the pixel definition layer is provided with a drag rod opening area, and the light-emitting unit is formed in the opening area;

[0023] forming an encapsulation layer on a side of the light emitting unit away from the substrate;

[0024] A reflective layer is formed on a side of the encapsulation layer away from the substrate; the orthographic projection of the reflective layer on the substrate does not overlap with the orthographic projection of the opening area on the substrate, and the reflective layer includes a first reflective surface close to a side of the substrate, and the first reflective surface is used to reflect part of the light emitted by the light-emitting unit;

[0025] A touch wiring layer is formed on a side of the reflective layer away from the substrate, and the orthographic projection of the touch wiring layer on the substrate is located within the orthographic projection of the reflective layer on the substrate.

[0026] In one embodiment, before forming a touch wiring layer on a side of the reflective layer away from the substrate, the method includes:

[0027] A reinforcing layer is formed on a surface of the reflective layer away from the substrate.

[0028] The technical solution provided by the embodiments of the present application may have the following beneficial effects:

[0029] It can be seen from the above embodiments that the display panel of the present application includes a stacked substrate, a pixel definition layer, a light-emitting unit, an encapsulation layer, a reflective layer and a touch wiring layer. The orthographic projection of the reflective layer on the substrate does not overlap with the orthographic projection of the opening area on the substrate, and the reflective layer includes a first reflective surface close to one side of the substrate, and the first reflective surface is used to reflect part of the light emitted by the light-emitting unit. The touch wiring layer is located on the side of the reflective layer away from the substrate, and the orthographic projection of the touch wiring layer on the substrate falls within the orthographic projection of the reflective layer on the substrate. The present application sets a reflective layer between the encapsulation layer and the touch wiring layer, which, by cooperating with the touch wiring layer, can reflect most of the light emitted by the light-emitting unit in the wide viewing angle display direction, so as to realize the display of the display panel with a narrow viewing angle.

[0030] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments 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.

[0032] Figure 1 The present invention is a schematic structural diagram of a display panel provided in an embodiment of the present application at a viewing angle.

[0033] Figure 2 It is a schematic structural diagram of a reflective layer in a display panel provided in one embodiment of the present application at a viewing angle.

[0034] Figure 3 The diagram is an exploded view of a partial structure of a display panel provided in an embodiment of the present application at a viewing angle.

[0035] Reference numerals:

[0036] 10. Substrate; 20. Pixel definition layer; 30. Light-emitting unit; 301. Anode layer; 302. Hole transport layer; 303. Light-emitting layer; 304. Electron transport layer; 305. Cathode layer; 40. Encapsulation layer; 50. Reflection layer; 501. Main core layer; 502. First sub-reflection layer; 503. Second sub-reflection layer; 60. Reinforcement layer; 70. Touch wiring layer; 701. First metal layer; 702. Second metal layer; 80. Black matrix layer; 90. Color filter layer. DETAILED DESCRIPTION

[0037] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The methods described in the following exemplary embodiments do not represent all methods consistent with the present application. Instead, they are merely examples of devices consistent with some aspects of the present application as detailed in the appended claims.

[0038] In the related art, in order to reduce the thickness of the OLED display panel and reduce the influence of the external touch substrate and filter components on the flexibility of the OLED display panel, the OLED display panel is usually combined with FMLOC (Flexible Multi-Layer OnCell) and COE (Color Filter on Encapsulation) to achieve the touch and filter performance of the display panel. Among them, FMLOC is to make a metal grid electrode layer on the encapsulation layer of the OLED display panel to achieve the touch control of the display panel.

[0039] The metal touch lines in the metal grid electrode layer of the FMLOC are all wired along the opening area of ​​the pixel definition layer, so that the light emitted by some pixels in the wide viewing angle display direction can be reflected by the touch lines, thereby reducing the viewing angle of the display panel to a certain extent. However, due to the wiring design and material limitations of the touch lines themselves, and the reflectivity of the materials, the reflection of the light in the wide viewing angle display direction is limited, and the narrow viewing angle display required by the display panel cannot be fully realized. Therefore, as described in the background technology, a technology that can actively realize narrow viewing angle display of a display panel is urgently needed.

[0040] Based on this, the present application provides a display panel, referring to Figure 1 The display panel includes a substrate 10, a pixel definition layer 20, an encapsulation layer 40, a reflective layer 50 and a touch wiring layer 70 which are stacked. The pixel definition layer 20 is located on the substrate 10 and includes a plurality of opening areas, in which light-emitting units 30 are arranged. The encapsulation layer 40 is located on a side of the light-emitting unit 30 away from the substrate 10. The reflective layer 50 is located on a side of the encapsulation layer 40 away from the substrate 10, and the orthographic projection of the reflective layer 50 on the substrate 10 does not overlap with the orthographic projection of the opening area on the substrate 10. The reflective layer 50 includes a first reflective surface close to a side of the substrate 10, and the first reflective surface is used to reflect part of the light emitted by the light-emitting unit 30. The touch wiring layer 70 is located on a side of the reflective layer 50 away from the substrate 10, and the orthographic projection of the touch wiring layer 70 on the substrate 10 falls within the orthographic projection of the reflective layer 50 on the substrate 10.

[0041] The present application sets a reflective layer 50 between the encapsulation layer 40 and the touch wiring layer 70. The reflective layer 50, like the touch wiring layer 70, is set around the opening area in the pixel definition layer 20 to ensure normal light emission of the light-emitting unit 30 in the small viewing angle (narrow viewing angle) area. In the present application, the line width of the reflective layer 50 in the direction perpendicular to its own extension is greater than the line width of the touch wiring in the touch wiring layer 70, so that the light emitted by the light-emitting unit 30 in the wide viewing angle display direction that cannot be blocked by the touch wiring layer 70 can be blocked, and the narrow viewing angle display required by the display panel can be achieved by fully reflecting the light in the wide viewing angle display direction.

[0042] Secondly, the setting of the reflective layer 50 can increase the distance between the touch wiring layer 70 and the electrodes in the light-emitting unit 30, reduce the coupling capacitance formed between the wiring in the touch wiring layer 70 and the electrodes, thereby effectively improving the charging capacity of the touch circuit and further improving the touch sensitivity of the entire display panel.

[0043] Finally, the provision of the emission layer can also effectively reduce the interference of the electrical signal on the electrode to the touch wiring layer 70, so as to improve the signal-to-noise ratio of touch sensing.

[0044] It is understandable that the display panel may be a touch display panel with a touch function, such as a display panel with an FMLOC structure, etc. In addition, the display panel includes but is not limited to LCD (Liquid Crystal Display), OLED (Organic Light-Emitting Diode), QLED (Quantum DotLight Emitting Diodes) or quantum dot photoluminescent display panel, etc.

[0045] It can also be understood that the light-emitting unit 30 includes an anode layer 301 , a hole transport layer 302 , an organic light-emitting layer 303 , an electron transport layer 304 , and a cathode layer 305 which are sequentially stacked, and no further details are given here.

[0046] In some embodiments, the reflective layer 50 is made of insulating material, and in particular, the reflective layer 50 is made of plastic.

[0047] It is understandable that due to the material characteristics, the first reflective surface of the reflective layer 50 made of plastic has fine concave-convex structures. These concave-convex structures make the light irradiated by the light emitting unit 30 on the first reflective surface reflect in multiple directions, also known as diffuse reflection.

[0048] Specifically, the concave-convex structure causes the light to scatter on the first reflective surface, and part of the light will be directly reflected back to the direction of the substrate 10 like a mirror reflection. The other part of the light will be refracted into the reflective layer 50, but because the reflective layer 50 is formed of a plastic material, there are a large number of fillers or microbubbles inside, and the light will be reflected, refracted and re-reflected after encountering these foreign objects, especially the refractive index of the medium in the microbubble is 1.0, and the light will be reflected on the inner surface of the microbubble, and refracted at a larger angle. All these complex internal structures well prevent the light from not being able to smoothly penetrate the reflective surface of the reflective layer 50 close to the touch wiring layer 70 (i.e., the second reflective surface mentioned in the subsequent content), and then change the light path to reflect back to the first reflective surface.

[0049] This arrangement can greatly improve the reflectivity of the reflective layer 50, so as to improve the absorption or blocking of the light emitted by the light-emitting unit 30 in the wide viewing angle display direction, thereby improving the display effect of the narrow viewing angle display.

[0050] Preferably, the material of the reflective layer 50 is polyethylene terephthalate or polypropylene.

[0051] In some embodiments, the reflective layer 50 has high opacity, and the surface glossiness at an angle of 60° is less than 40%.

[0052] As you can understand, opacity refers to the ability of a material to prevent light from passing through it. High opacity means that it is difficult for light to penetrate this material. Surface gloss refers to the ability of the material surface to reflect light, usually expressed as a percentage. Gloss measurement is determined by comparing it to the reflectivity of a standard plate (such as black glass or ceramic plate). The 60° angle refers to the angle at which the light is in contact with the surface of the material when measuring gloss. 60° is one of the commonly used measurement angles because it is close to the viewing angle when the human eye observes an object. Gloss below 40% means that the material surface reflects less light and looks matte or dull.

[0053] This arrangement can further improve the blocking effect of the reflective layer 50 on light in the wide viewing angle display direction, provide the required privacy protection, and effectively reduce light interference and improve visual comfort, which makes it very useful in a variety of applications.

[0054] In some embodiments, the reflective layer 50 may be configured as a single-layer structure. The single-layer reflective layer 50 has a simple manufacturing process and can effectively reduce the production cost of the display panel.

[0055] In some embodiments, the reflective layer 50 is configured as a three-layer structure. Figure 2The reflective layer 50 includes a main core layer 501 and a first sub-reflective layer 502 and a second sub-reflective layer 503 located on both sides of the main core layer 501. The density of the main core layer 501 is less than that of the first sub-reflective layer 502 and the second sub-reflective layer 503.

[0056] Furthermore, an olefin material with low density or a foaming material is added to the main core layer 501 to reduce the density of the main core layer 501. Preferably, the density of the main core layer 501 is less than 0.8 g / cm 3 Specifically, inorganic particles are added to the first sub-reflection layer 502 and / or the second sub-reflection layer 503 to improve the glossiness of the surface of the first sub-reflection layer 502 (which can be understood as the first reflection surface) and the surface of the second sub-reflection layer 503 (which can be understood as the second reflection surface) to increase the reflectivity.

[0057] It is understandable that the present application does not limit the structure of the reflective layer 50. That is, the reflective layer 50 can also be a two-layer structure, a four-layer structure, etc. Different reflective film layer structures can achieve different effects of narrow viewing angle display. The specific number and configuration between the layers are determined according to actual needs.

[0058] In some embodiments, the line width of the reflective layer 50 in the direction perpendicular to its own extension is 2-10 μm larger than the line width of the touch wiring layer 70 in the direction perpendicular to its own extension. This arrangement can ensure that the reflective layer 50 receives most of the light emitted by the light-emitting unit 30 in the wide viewing angle display direction, so that the reflective layer 50, as the main reflective layer 50, first blocks the light emitted by the light-emitting unit 30 in the wide viewing angle display direction, and the small part of the light that is not blocked is supplemented by the touch wiring layer 70 (which can be understood as the secondary reflective layer 50). Through the cooperation of the reflective layer 50 and the touch wiring layer 70, most of the light in the wide viewing angle display direction can be blocked to improve the display effect of the narrow viewing angle display of the display panel.

[0059] Preferably, the line width of the reflective layer 50 in the direction perpendicular to its own extension direction is larger than the line width of the touch wiring layer 70 in the direction perpendicular to its own extension direction by any one of 3 μm, 5 μm, 7 μm and 10 μm.

[0060] In some embodiments, the reflective layer 50 further includes a second reflective surface away from the substrate 10, and a reinforcing layer 60 is disposed on the second reflective surface. This arrangement can further improve the reflectivity of the reflective layer 50 to the light in the wide viewing angle display direction of the light emitting unit 30.

[0061] Specifically, the reinforcing layer 60 can be understood as a layer of white coating applied on the second reflective surface, or a mirror coating.

[0062] Further, the white coating can be understood as a coating of an insulating material. Preferably, the reinforcing layer 60 can be made of PMMA (polymethyl methacrylate). Preferably, the reinforcing layer 60 can be made of an Al2O3 / PMMA overlapping film.

[0063] Furthermore, the mirror coating can be a metal coating or an oxide film. Preferably, the metal coating includes aluminum, and the metal coating can be used to improve reflectivity and enhance display effects. Preferably, the oxide film is an Al2O3 (aluminum oxide) film. A water vapor barrier film can be formed on the second reflective surface by magnetron sputtering, electron beam evaporation or plasma enhanced chemical vapor deposition, and also has a certain mirror effect.

[0064] In some implementations, the display panel of this embodiment does not limit the pixel arrangement structure and can be applied to display panels with different pixel arrangement structures such as S-RGB, G-RG, etc., and has a wide range of design compatibility.

[0065] The present application also provides a method for manufacturing a display panel. Figure 1 The manufacturing process of the display panel shown is as follows: step S10 to step S90.

[0066] Step S10: providing a substrate 10 .

[0067] Specifically, a driving circuit layer pattern is prepared on a substrate to form a base plate 10. The driving circuit includes devices such as thin film transistors, gate lines, and data lines.

[0068] It is understandable that the present application does not limit the type of thin film transistor, which can be any one of LTPS TFT (Low-Temperature Polycrystalline Silicon Thin-Film Transistor), Oxide TFT (oxide thin film transistor), and LTPO TFT (Low Temperature Polycrystalline Oxide Thin Film Transistor).

[0069] It is understandable that the flexible substrate layer can be made of any one of polyimide, polyethylene naphthalate (PEN), and polyethylene terephthalate (PET). The flexible substrate layer can be a single layer or multiple layers, which is not limited here.

[0070] Step S20: preparing the anode layer 30 in the light emitting unit 30 on the driving circuit layer.

[0071] Specifically, an anode layer 301 is prepared on the driving circuit, and then anode patterning is performed to form a pixel pattern. In this step, the anode layer 301 can be deposited by sputtering, and then glue coating, exposure, development and photolithography are performed on the anode layer 301 in sequence to form a pixel pattern.

[0072] Step S30: forming a pixel definition layer 20 on the anode layer 301. The pixel definition layer 20 defines a plurality of opening areas.

[0073] Step S40: preparing the light-emitting unit 30. Specifically, it includes the following steps S401 to S404.

[0074] Step S401 : forming a hole transport layer 302 in the opening region of the pixel definition layer 20 .

[0075] Step S402 : forming a light-emitting layer 303 on the hole transport layer 302 . The light-emitting layer 303 may include any one of a red light-emitting layer 303 , a green light-emitting layer 303 and a blue light-emitting layer 303 .

[0076] Step S403 : forming an electron transport layer 304 on the light emitting layer 303 .

[0077] Step S404 : forming a cathode on the electron transport layer 304 .

[0078] It can be understood that the anode layer 301 formed in step S20 and the layers formed in this step together form the light emitting unit 30 .

[0079] Step S50 : forming an encapsulation layer 40 on a side of the light emitting unit 30 away from the substrate 10 .

[0080] Specifically, the encapsulation process is generally a multi-layer organic / inorganic / organic / inorganic / organic structure. Exemplarily, the encapsulation layer 40 adopts a three-layer encapsulation structure, a first inorganic layer CVD1 composed of SiOx and SiNx, a first organic layer IJP made by inkjet printing, and a second inorganic layer CVD2 composed of SiOx and SiNx. The inorganic layer can be replaced by other water- and oxygen-blocking inorganic layers, such as Al2O3 deposited by ALD. The organic layer can be replaced by other organic layers with good particle coating effects, such as OC (Organic Coating) formed by photolithography. In particular, the visible light transmittance of the first organic layer material is about 60%, which reduces the light output of the light-emitting layer 303 to a certain extent, and can effectively prevent reflection after the incident external light, and play a similar effect to the color film of COE.

[0081] Step S60: forming a reflective layer 50 on the side of the encapsulation layer 40 away from the substrate 10. The orthographic projection of the reflective layer 50 on the substrate 10 does not overlap with the orthographic projection of the opening area on the substrate 10, and the reflective layer 50 includes a first reflective surface close to the side of the substrate 10, and the first reflective surface is used to reflect part of the light emitted by the light-emitting unit 30. Preferably, the reflective layer 50 is arranged around the opening area of ​​the pixel definition layer 20. The material of the reflective layer 50 is the same as that of the above embodiment, and no further details are given here.

[0082] Step S70 : forming a touch wiring layer 70 on a side of the reflective layer 50 away from the substrate 10 , wherein the orthographic projection of the touch wiring layer 70 on the substrate 10 is located within the orthographic projection of the reflective layer 50 on the substrate 10 .

[0083] Specifically, a first metal layer 701 (ie, Touch Metal A, TMA), a first insulating layer (not shown), and a second metal layer 702 (ie, Touch Metal B, TMB) of the On cell touch are formed on the encapsulation layer 40 at one time.

[0084] It is understandable that the metal wiring in the touch wiring layer 70 is generally in a grid shape, and the grid-shaped touch wiring can form a touch electrode. The line width of the touch electrode in the direction perpendicular to its own extension is 2-10 μm smaller than the line width of the reflective layer 50 in the direction perpendicular to its own extension. That is, by setting the line width of the reflective layer 50 to be larger than the line width of the touch electrode, it is ensured that the reflective layer 50 can receive the light emitted by the light-emitting layer 303 in the wide viewing angle display direction to the maximum extent, and reflect the light, so as to realize the narrow viewing angle display of the display panel.

[0085] In one embodiment, the thickness of the first metal layer 701 and the second metal layer 702 ranges from 0.45 μm to 0.65 μm.

[0086] It is understandable that in the FMLOC process, in order to achieve a better narrow viewing angle effect, through the optical simulation results, under the same metal material, the natural light total reflectance of the conventional metal thickness of 0.45μm is 80%. The natural light total reflectance of the simulated thickened metal with a thickness of 0.60μm reaches 85%. In this embodiment, by increasing the thickness of the touch electrode in the touch wiring layer 70 to reduce the resistance of the metal touch electrode, the driving power consumption of the touch display panel can be reduced.

[0087] Step S80: forming a black matrix layer 80 on the second metal layer 702. The black matrix layer 80 can effectively prevent the metal in the touch wiring layer 70 and the driving circuit layer from reflecting natural light, prevent light from different sub-pixels from interfering with each other, and absorb unnecessary light from above and below, thereby improving display contrast and color purity. No further details will be given here.

[0088] Step S90: Prepare the color filter layer 90. Specifically, a plurality of filter structures are formed in the opening area of ​​the black matrix layer 80 to form the color filter layer 90. The color filter layer 90 is used to filter light of a specific wavelength, thereby realizing the display of the three primary colors of red, green and blue. No further details will be given here.

[0089] In some implementations, step S601 is further included before step S70.

[0090] Step S601: Prepare a reinforcing layer 60 on the reflective layer 50. Exemplarily, the width of the reinforcing layer 60 in a direction perpendicular to its own extension is equal to the width of the reflective layer 50 in a direction perpendicular to its own extension. This arrangement can be achieved by using the same mask when preparing the emitting layer 50 and the reinforcing layer 60, thereby saving production costs.

[0091] Exemplarily, the width of the reinforcing layer 60 in the direction perpendicular to its own extension direction is smaller than the width of the reflective layer 50 in the direction perpendicular to its own extension direction, and is larger than the width of the touch wiring in the touch wiring layer 70 .

[0092] Through the above steps, the Figure 2 The display panel described in Figure 2 Combination Figure 3 It can be seen that the light emitted by the light-emitting layer 303 in the light-emitting unit 30 is divided into light in the wide viewing angle display direction and light in the narrow viewing angle display direction according to different display directions. For the convenience of subsequent description, the light in the wide viewing angle display direction is referred to as the first light, and the light in the narrow viewing angle display direction is referred to as the second light.

[0093] The second light directly passes through the color filter layer 90 for display to meet the user's display needs under narrow viewing angles. Most of the first light is irradiated on the first reflecting surface of the reflecting layer 50. The first light is directly reflected by the reflecting layer 50 back to the direction of the substrate 10 or reflected back to the direction of the substrate 10 by refraction in the reflecting layer 50, thereby blocking the first light in most of the wide viewing angle display directions, thereby ensuring the narrow viewing angle display of the display panel. A small number of first light rays that are not reflected by the reflecting layer 50 are irradiated on the touch electrodes in the touch wiring layer 70. The touch electrodes also reflect the first light rays to reflect the remaining small part of the first light rays back to the direction of the substrate 10. Through the cooperation of the touch electrodes and the reflecting layer 50, the first light rays can be fully reflected to ensure the narrow viewing angle display effect of the display panel.

[0094] The present application also provides a display device, including a display panel as mentioned in any of the above embodiments. The specific structure and principle of the display panel are the same as those in the above embodiments, and will not be repeated here. The display device can be any product or device with a display function, such as a monitor, a mobile phone, a television, a tablet computer, etc., which are not listed here one by one.

[0095] The words "first", "second" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "an" do not indicate a quantitative limitation, but indicate the existence of at least one. If it only refers to "one", it will be separately stated. "Multiple" or "several" means two or more. The term "and / or" used in this article refers to and includes any or all possible combinations of one or more associated listed items.

[0096] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A display panel, characterized in that: include: substrate; A pixel definition layer located on the substrate; the pixel definition layer includes a plurality of opening areas, and light-emitting units are arranged in the opening areas; an encapsulation layer located on a side of the light emitting unit away from the substrate; a reflective layer located on a side of the encapsulation layer away from the substrate, wherein an orthographic projection of the reflective layer on the substrate does not overlap with an orthographic projection of the opening area on the substrate, and wherein the reflective layer comprises a first reflective surface close to a side of the substrate, and wherein the first reflective surface is used to reflect a portion of light emitted by the light-emitting unit; The touch wiring layer is located at a side of the reflective layer away from the substrate, and the orthographic projection of the touch wiring layer on the substrate falls within the orthographic projection of the reflective layer on the substrate.

2. The display panel according to claim 1, characterized in that: The reflective layer is made of insulating material.

3. The display panel according to claim 2, characterized in that: The material of the reflective layer is selected from polyethylene terephthalate and polypropylene.

4. The display panel according to claim 2, characterized in that: The reflective layer includes a main core layer and a first sub-reflective layer and a second sub-reflective layer located on both sides of the main core layer; wherein, The density of the main core layer is smaller than that of the first sub-reflection layer and the second sub-reflection layer.

5. The display panel according to any one of claims 1 to 4, characterized in that: The line width of the reflective layer in a direction perpendicular to its own extension direction is 2-10 μm greater than the line width of the touch wiring layer in a direction perpendicular to its own extension direction.

6. The display panel according to any one of claims 1 to 4, characterized in that: The reflective layer further comprises a second reflective surface away from the substrate, and a reinforcing layer is arranged on the second reflective surface.

7. The display panel according to claim 6, characterized in that: The material of the reinforcement layer is insulating material; or; The reinforcement layer is made of metal material.

8. A display device, characterized in that: Comprising the display panel as described in any one of claims 1-7.

9. A method for manufacturing a display panel, characterized in that: include: providing a substrate; A pixel definition layer and a light-emitting unit are sequentially formed on the substrate, wherein the pixel definition layer is provided with a drag rod opening area, and the light-emitting unit is formed in the opening area; forming an encapsulation layer on a side of the light emitting unit away from the substrate; A reflective layer is formed on a side of the encapsulation layer away from the substrate; the orthographic projection of the reflective layer on the substrate does not overlap with the orthographic projection of the opening area on the substrate, and the reflective layer includes a first reflective surface close to a side of the substrate, and the first reflective surface is used to reflect part of the light emitted by the light-emitting unit; A touch wiring layer is formed on a side of the reflective layer away from the substrate, and the orthographic projection of the touch wiring layer on the substrate is located within the orthographic projection of the reflective layer on the substrate.

10. The method for manufacturing a display panel according to claim 9, characterized in that: Before forming a touch wiring layer on a side of the reflective layer away from the substrate, the method includes: A reinforcement layer is formed on a surface of the reflective layer at a side away from the substrate.

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