Display panel, display apparatus and manufacturing method of display panel

Abstract

To improve the usage performance of an OLED display product.SOLUTION: A light-transmitting opening 250 is opened in an isolation structure 200 which is formed while enclosing a plurality of isolation openings 240, and transmissivity of a display panel 10 is improved. A substrate 100 includes a signal transmission layer 110 and a signal shielding layer 120, the signal shielding layer 120 is located on a side of the signal transmission layer 110 away from the substrate 100, and the signal shielding layer 120 includes a first signal line 121 and a light-transmitting shielding portion 122. The light-transmitting shielding portion 122 shields at least a part of the light-transmitting opening 250, such that a touch signal of a touch layer 300 passes the light-transmitting opening 250 and is then at least partially shielded by the light-transmitting shielding portion 122. Thus, the problem that the touch signal of the touch layer 300 and an array signal of the substrate 100 exert influences on each other via the light-transmitting opening 250 is solved and the usage performance of an OLED display product is improved.SELECTED DRAWING: Figure 1

Description

[Technical field]

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

[0002] Flat display devices based on technologies such as organic light emitting diodes (OLEDs) and light emitting diodes (LEDs) have advantages such as high image quality, low power consumption, a thin body, and a wide range of applications, and are therefore widely used in various consumer electronic products such as mobile phones, televisions, notebook computers, and desktop computers, becoming the mainstream display device.

[0003] However, there is a need to improve the performance of current OLED display products. Summary of the Invention

[0004] The embodiments of the present application provide a display panel, a display device, and a manufacturing method of a display panel for improving the performance of an OLED display product.

[0005] An embodiment of a first aspect of the present application provides a display panel, the display panel including: a substrate; an isolation structure; and a touch layer; the substrate includes a signal transmission layer and a signal shielding layer; the signal shielding layer is located on a side of the signal transmission layer away from the substrate; the signal shielding layer includes a first signal line and a light-transmitting shielding portion; the isolation structure is located on one side of the substrate and is surrounded by the isolation structure to form an isolation opening and a light-transmitting opening, the isolation opening is for providing a light-emitting unit, a positive projection of the light-transmitting opening on the substrate and a positive projection of the light-transmitting shielding portion on the substrate at least partially overlap; and the touch layer is located on a side of the signal shielding layer away from the signal transmission layer.

[0006] According to an embodiment of the first aspect of the present application, an orthogonal projection of the light-transmitting opening on the substrate is located within an orthogonal projection of the light-transmitting blocking portion on the substrate.

[0007] According to an embodiment of the first aspect of the present application, the light transmitting shielding portion and the first signal line are connected to each other.

[0008] According to an embodiment of the first aspect of the present application, there are a plurality of first signal lines, the plurality of first signal lines are arranged in parallel, adjacent first signal lines are arranged at intervals to form a gap, and the light transmission shielding portion is located within the gap.

[0009] According to any of the embodiments of the first aspect of the present application, the light transmitting and shielding portion is electrically connected to one or more adjacent first signal lines.

[0010] According to any of the embodiments of the first aspect of the present application, one of the light transmitting and shielding portions is provided corresponding to one of the light transmitting openings, and / or one of the light transmitting and shielding portions is provided corresponding to a plurality of the light transmitting openings.

[0011] According to any of the embodiments of the first aspect of the present application, an orthogonal projection of the light transmitting and shielding portion on the substrate at least partially overlaps with an orthogonal projection of the first signal line on the substrate.

[0012] According to any of the embodiments of the first aspect of the present application, an orthogonal projection of the first signal line on the substrate is located within an orthogonal projection of the light transmitting and shielding portion on the substrate.

[0013] According to any of the embodiments of the first aspect of the present application, the signal shielding layer is surrounded by the light-transmitting shielding portion to form a first opening, and the signal shielding layer further includes a second signal line, the first signal line and the second signal line are located within the first opening, and the second signal line is spaced apart and insulated from the light-transmitting shielding portion.

[0014] According to any of the embodiments of the first aspect of the present application, the second signal line includes a data signal line.

[0015] According to any one of the embodiments of the first aspect of the present application, both ends of the first signal line are overlapped and connected to the light transmitting and blocking portion.

[0016] According to any of the embodiments of the first aspect of the present application, the light-transmitting shielding portion and the first signal line are made of different materials, and the first signal line is made of a non-light-transmitting conductive material.

[0017] According to any of the embodiments of the first aspect of the present application, the light transmitting shielding portion includes indium tin oxide or indium zinc oxide.

[0018] According to any of the embodiments of the first aspect of the present application, the first signal line includes a power supply signal line and / or a reference voltage signal line.

[0019] According to any of the above embodiments of the first aspect of the present application, the display panel further includes an emission layer and a first electrode layer, the emission layer being located on one side of the substrate and including an emission unit located in the isolation opening, the first electrode layer being located on a side of the emission layer away from the substrate and including a first electrode located in the isolation opening, the first electrode being electrically connected to the isolation structure.

[0020] According to any of the above embodiments of the first aspect of the present application, an orthogonal projection on the substrate of each light-emitting unit lies within an orthogonal projection on the substrate of each first electrode.

[0021] According to any of the above embodiments of the first aspect of the present application, the light emitting unit and the isolation structure are spaced apart.

[0022] According to any of the embodiments of the first aspect of the present application, the isolation structure includes a first conductive layer and a second layer located on a side of the first conductive layer away from the substrate, and an orthogonal projection of the first conductive layer on the substrate lies within an orthogonal projection of the second layer on the substrate.

[0023] According to any of the preceding embodiments of the first aspect of the present application, the second layer comprises a conductive material or an insulating material.

[0024] According to any of the above embodiments of the first aspect of the present application, the second layer comprises a metallic material, and the materials of the first conductive layer and the second layer are different.

[0025] According to any of the embodiments of the first aspect of the present application, the isolation structure further includes a third layer located on a side of the first conductive layer facing the substrate, and an orthogonal projection of the first conductive layer on the substrate is located within an orthogonal projection of the third layer on the substrate.

[0026] According to any of the embodiments of the first aspect of the present application, the display panel further includes a pixel definition layer located on one side of the substrate, the pixel definition layer including a pixel limiting portion and a pixel opening surrounded by the pixel limiting portion, the pixel opening communicates with the isolation opening, and the light-emitting unit is located in the pixel opening. According to any of the embodiments of the first aspect of the present application, the isolation structure is located on a side of the pixel limiting portion remote from the substrate.

[0027] According to any of the embodiments of the first aspect of the present application, a second opening is provided in the pixel limiting portion, and the isolation structure is located in the second opening.

[0028] According to any of the embodiments of the first aspect of the present application, the display panel further includes a pixel electrode exposed from the pixel opening.

[0029] An embodiment of a second aspect of the present application provides a display device including the display panel of any of the above embodiments.

[0030] An embodiment of a third aspect of the present application provides a method for manufacturing a display panel, the method for manufacturing a display panel includes the steps of: manufacturing a substrate, the substrate including a signal transmission layer and a signal shielding layer, the signal shielding layer being located on a side of the signal transmission layer away from the substrate, the signal shielding layer including a first signal line and a light transmission shielding portion; fabricating an isolation structure on a substrate, the isolation structure being surrounded to form an isolation opening and a light-transmitting opening, the isolation opening is for providing a light-emitting unit, and an orthogonal projection of the light-transmitting opening on the substrate and an orthogonal projection of the light-transmitting shielding portion on the substrate at least partially overlap with each other; and fabricating a touch layer on a side of the signal shielding layer away from the signal transmitting layer.

[0031] According to the display panel according to the embodiment of the present application, the display panel includes a substrate, an isolation structure, and a touch layer. The isolation structure is provided on the substrate and is formed around a plurality of isolation openings, which are used to divide the light-emitting layer to form light-emitting units that are cut from each other, thereby reducing the crosstalk of carriers in the light-emitting layer, improving the display effect of the display panel, and eliminating the need to use precision masks to manufacture the light-emitting units, reducing the development and use of precision masks, and reducing manufacturing costs. A light-transmitting opening is opened in the isolation structure, which can improve the transmittance of the display panel. The substrate includes a signal transmission layer and a signal shielding layer, the signal shielding layer includes a first signal line and a light-transmitting shielding part, and the signal shielding layer is located on the side of the signal transmission layer away from the substrate. The orthogonal projection of the light-transmitting aperture on the substrate and the orthogonal projection of the light-transmitting shielding portion on the substrate at least partially overlap, i.e., the light-transmitting shielding portion shields at least a part of the light-transmitting aperture, so that the touch signal of the touch layer is at least partially shielded by the light-transmitting shielding portion after passing through the light-transmitting aperture, thereby solving the problem of the touch signal of the touch layer and the array signal of the substrate influencing each other through the light-transmitting aperture, and improving the use performance of the OLED display product. [Brief description of the drawings]

[0032] Other features, objects and advantages of the present application will become more apparent from the detailed description given below of non-limiting examples with reference to the drawings, in which the same or similar reference numerals refer to the same or similar features and the drawings are not drawn to scale.

[0033] [Figure 1] 1 is a schematic cross-sectional view of a display panel according to an embodiment of the present application. [Diagram 2] FIG. 2 is a schematic top view of a display panel according to an embodiment of the present application. [Diagram 3] FIG. 11 is a partial cross-sectional view of a display panel according to another embodiment. [Figure 4] FIG. 11 is a partial plan view of a display panel according to another embodiment. [Diagram 5] FIG. 13 is a partial plan view of a display panel according to yet another embodiment. [Figure 6]FIG. 13 is a partial plan view of a display panel according to yet another embodiment. [Figure 7] FIG. 11 is a partial cross-sectional view of a display panel according to yet another embodiment. [Figure 8] FIG. 11 is a partial cross-sectional view of a display panel according to yet another embodiment. [Figure 9] FIG. 11 is a partial plan view of a display panel according to another embodiment. [Figure 10] FIG. 11 is a partial cross-sectional view of a display panel according to another embodiment. [Figure 11] FIG. 11 is a partial cross-sectional view of a display panel according to another embodiment. [Figure 12] 2 is a flowchart of a method for manufacturing a display panel according to an embodiment of the present application. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0034] Hereinafter, the features and exemplary embodiments of each aspect of the present application will be described in detail, and the present application will be described in more detail with reference to the drawings and specific embodiments, in order to make the objectives, technical solutions and advantages of the present application more clearly understood. As can be understood, the specific embodiments described herein are merely configured to interpret the present application, and are not configured to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is merely to provide examples of the present application to better understand the present application.

[0035] It should be noted that in this specification, relational terms such as first and second are merely intended to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that such an actual relationship or sequence exists between these entities or operations. Also, the terms "comprises," "has," or any other variations thereof are intended to cover a non-exclusive inclusion, and a process, method, article, or device that includes a set of elements not only includes those elements, but also includes other elements not expressly listed, or includes elements inherent to such process, method, article, or device. In the absence of more limitations, an element limited by the phrase "comprises" does not exclude the presence of other identical elements in the process, method, article, or equipment that includes the element.

[0036] As will be understood, when describing the structure of a component, a layer or region being referred to as being "on" or "above" another layer or region may refer to being directly on top of the other layer or region, or may further include other layers or regions between the other layer or region, and when the component is inverted, the layer or region would be "below" or "underneath" the other layer or region.

[0037] Embodiments of the present application provide a display panel, a display device, and a method for manufacturing a display panel. Hereinafter, each embodiment of the display panel, the display device, and the method for manufacturing a display panel will be described with reference to the drawings.

[0038] An embodiment of the present application provides a display panel, which may be an Organic Light Emitting Diode (OLED) display panel.

[0039] 1 and 2, FIG. 1 is a schematic cross-sectional view of a display panel according to an embodiment of the present application, and FIG. 2 is a schematic top view of the display panel according to the embodiment of the present application.

[0040] As shown in FIGS. 1 and 2 , an embodiment of the first aspect of the present application provides a display panel 10, which includes a substrate 100, an isolation structure 200 and a touch layer 300, the substrate 100 includes a signal transmission layer 110 and a signal shielding layer 120, the signal shielding layer 120 is located on a side of the signal transmission layer 110 away from the substrate 100, the signal shielding layer 120 includes a first signal line 121 and a light-transmitting shielding portion 122, the isolation structure 200 is located on one side of the substrate 100 and is surrounded by the isolation structure 200 to form an isolation opening 240 and a light-transmitting opening 250, the isolation opening 240 is used to provide a light-emitting unit 410, the orthogonal projection of the light-transmitting opening 250 on the substrate 100 at least partially overlaps with the orthogonal projection of the light-transmitting shielding portion 122 on the substrate 100, and the touch layer 300 is located on a side of the signal shielding layer 120 away from the signal transmission layer 110.

[0041] According to the display panel 10 according to the embodiment of the present application, the display panel 10 includes a substrate 100, an isolation structure 200, and a touch layer 300. The isolation structure 200 is disposed on the substrate 100 and surrounds a plurality of isolation openings 240, which are used to divide the light-emitting layer 400 to form the light-emitting units 410 that are cut from each other, thereby reducing the crosstalk of carriers in the light-emitting layer 400 and improving the display effect of the display panel 10; and there is no need to use a precision mask to manufacture the light-emitting units 410, which reduces the development and use of precision masks and reduces the manufacturing cost. A light-transmitting opening 250 is opened in the isolation structure 200, which can improve the transmittance of the display panel 10. The substrate 100 includes a signal transmission layer 110 and a signal shielding layer 120, which includes a first signal line 121 and a light-transmitting shielding portion 122, and the signal shielding layer 120 is located on the side of the signal transmission layer 110 that is away from the substrate 100. The orthogonal projection of the light-transmitting opening 250 on the substrate 100 and the light-transmitting shielding portion 122 on the substrate 100 at least partially overlap, i.e., the light-transmitting shielding portion 122 shields at least a portion of the light-transmitting opening 250, so that the touch signal of the touch layer 300 is at least partially shielded by the light-transmitting shielding portion 122 after passing through the light-transmitting opening 250, thereby solving the problem of the touch signal of the touch layer 300 and the array signal of the substrate 100 influencing each other through the light-transmitting opening 250, and improving the performance of the OLED display product.

[0042] When the first signal line 121 and the light transmitting shielding portion 122 are provided in the same layer, the first signal line 121 and the light transmitting shielding portion 122 can be easily connected to each other by overlapping them, and the first signal line 121 and the light transmitting shielding portion 122 share one potential, eliminating the need for the light transmitting shielding portion 122 to perform potential connection in another manner. In addition, the first signal line 121 and the light transmitting shielding portion 122 share one flat layer, which solves the problem that an extra flat layer needs to be provided between the first signal line 121 and the light transmitting shielding portion 122 when the first signal line 121 and the light transmitting shielding portion 122 are provided in different layers, and the manufacturing process of the display panel 10 can be reduced.

[0043] Optionally, the touch layer 300 includes a touch electrode, and the orthogonal projection of the touch electrode on the substrate 100 does not overlap with the orthogonal projection of the light-transmitting opening 250 on the substrate 100, thereby avoiding the touch electrode from blocking the light-transmitting opening 250 and affecting the light transmission performance.

[0044] By selectively connecting the light transmitting shielding portion 122 and the first signal line 121 to each other and overlapping the light transmitting shielding portion 122 and the first signal line 121, the light transmitting shielding portion 122 and the first signal line 121 have the same potential, and the shielding function of the light transmitting shielding portion 122 can be realized.

[0045] In some alternative embodiments, there are multiple first signal lines 121, the multiple first signal lines 121 are arranged in parallel, adjacent first signal lines 121 are spaced apart to form a gap 123, and the light transmitting shielding portion 122 is located within the gap 123.

[0046] In these optional embodiments, adjacent first signal lines 121 are spaced apart to form a gap 123, the light-transmitting shielding portion 122 is disposed in the gap 123, and the first signal line 121 is provided on both sides of the light-transmitting shielding portion 122, which facilitates overlapping connection between the light-transmitting shielding portion 122 and the first signal line 121, and the light-transmitting shielding portion 122 and the first signal line 121 are electrically connected and have the same potential.

[0047] 1 to 4, FIG. 3 is a partial cross-sectional view of a display panel according to another embodiment, and FIG. 4 is a partial plan view of a display panel according to another embodiment.

[0048] As shown in FIGS. 1 to 4 , the light transmitting shielding portion 122 is selectively electrically connected to one or more adjacent first signal lines 121, and the light transmitting shielding portion 122 is connected to two adjacent first signal lines 121 in an overlapping manner, and the first signal lines 121 on both sides are electrically connected to the light transmitting shielding portion 122, which solves the problem of a voltage drop occurring after the light transmitting shielding portion 122 is electrically connected to the first signal line 121 on one side, which reduces the uniformity of the potential of the light transmitting shielding portion 122, improves the uniformity of the potential of the light transmitting shielding portion 122, and improves the shielding effect of the light transmitting shielding portion 122.

[0049] 5 and 6, FIG. 5 is a partial plan view of a display panel according to still another embodiment, and FIG. 6 is a partial plan view of a display panel according to yet another embodiment.

[0050] In some optional embodiments, as shown in FIG. 5, one light-transmitting shielding portion 122 is provided corresponding to one light-transmitting opening 250, and / or as shown in FIG. 6, one light-transmitting shielding portion 122 is provided corresponding to multiple light-transmitting openings 250.

[0051] One light-transmitting shielding portion 122 and one light-transmitting opening 250 are provided corresponding to each other, i.e., the orthogonal projection of one light-transmitting opening 250 on the substrate 100 is located within the orthogonal projection of one light-transmitting shielding portion 122. One light-transmitting shielding portion 122 and the plurality of light-transmitting openings 250 are provided corresponding to each other, i.e., the orthogonal projections of the plurality of light-transmitting openings 250 on the substrate 100 are located within the orthogonal projection of the same light-transmitting shielding portion 122.

[0052] In these optional embodiments, one light-transmitting shielding portion 122 is provided corresponding to one light-transmitting opening 250, so that the overall area of ​​the light-transmitting shielding portion 122 can be reduced and the material cost can be reduced. One light-transmitting shielding portion 122 is provided corresponding to a plurality of light-transmitting openings 250, so that the overlapping connection area between the light-transmitting shielding portion 122 and the isolation structure 200 can be increased, the overlapping connection impedance can be reduced, and the shielding effect of the light-transmitting shielding portion 122 can be improved.

[0053] Please refer to FIG. 7, which is a partial cross-sectional view of a display panel according to yet another embodiment.

[0054] As shown in FIG. 7 , the orthogonal projection of the light transmitting shielding portion 122 on the substrate 100 and the orthogonal projection of the first signal line 121 on the substrate 100 at least partially overlap, i.e., the light transmitting shielding portion 122 is arranged to cover at least a portion of the first signal line 121. Therefore, by increasing the overlapping connection area between the light transmitting shielding portion 122 and the first signal line 121, the contact resistance between the light transmitting shielding portion 122 and the first signal line 121 can be reduced and the shielding effect of the light transmitting shielding portion 122 can be improved.

[0055] Optionally, the orthogonal projection of the first signal line 121 on the substrate 100 is located within the orthogonal projection of the light transmitting shielding portion 122 on the substrate 100, i.e., the first signal line 121 is completely covered by the light transmitting shielding portion 122, and the portion of the light transmitting shielding portion 122 located on the first signal line 121 does not need to be etched, thereby simplifying the manufacturing process and further increasing the contact area between the light transmitting shielding portion 122 and the first signal line 121, thereby reducing the contact resistance between the light transmitting shielding portion 122 and the first signal line 121, and improving the shielding effect of the light transmitting shielding portion 122.

[0056] 8 and 9, FIG. 8 is a partial cross-sectional view of a display panel according to yet another embodiment, and FIG. 9 is a partial plan view of a display panel according to another embodiment.

[0057] As shown in Figures 8 and 9, in some optional embodiments, the signal shielding layer 120 is surrounded by the light-transmitting shielding portion 122 to form a first opening 124, and further includes a second signal line 125, where the first signal line 121 and the second signal line 125 are located within the first opening 124, and the second signal line 125 is spaced apart and insulated from the light-transmitting shielding portion 122.

[0058] In these selectable embodiments, the first opening 124 surrounded by the light transmission shielding portion 122 provides a certain space for providing the first signal line 121 and the second signal line 125. The first signal line 121 is located within the first opening 124, and the periphery of the first signal line 121 is the light transmission shielding portion 122, which facilitates overlapping connection between the first signal line 121 and the light transmission shielding portion 122. The second signal line 125 is provided within the first opening 124 to realize a signal transmission function. The second signal line 125 and the light transmission shielding portion 122 are provided at a distance from each other and insulated from each other, so that the second signal line 125 and the first signal line 121 are electrically connected to each other, making it difficult for a short circuit to occur, and improving the reliability of the first signal line 121 and the second signal line 125.

[0059] The second signal line 125 is selectively connected such that both ends of the first signal line 121 are overlapped and connected to the light transmitting shielding portion 122. This solves the problem of poor uniformity of the potential of the light transmitting shielding portion 122 due to a voltage drop that occurs after the light transmitting shielding portion 122 is electrically connected to the first signal line 121 on one side, thereby improving the uniformity of the potential of the light transmitting shielding portion 122 and improving the shielding effect of the light transmitting shielding portion 122.

[0060] Optionally, the orthogonal projection of the light-transmitting opening 250 on the substrate 100 is located within the orthogonal projection of the light-transmitting shielding portion 122 on the substrate 100, so that the light-transmitting opening 250 is completely shielded by the light-transmitting shielding portion 122, and the touch signal of the touch layer 300 is shielded by the light-transmitting shielding portion 122 after passing through the light-transmitting opening 250.

[0061] Optionally, the material of the light-transmitting shielding portion 122 and the first signal line 121 are different, and the first signal line 121 is a non-light-transmitting conductive material. For example, the first signal line 121 is a metallic conductive material, which has a low resistance and reduces the power consumption of the display panel.

[0062] Optionally, the light-transmitting shielding portion 122 includes indium tin oxide (ITO) or indium zinc oxide (IZO). When the light-transmitting shielding portion 122 is ITO or IZO, it has good transmittance and can be electrically conductive with the first signal line 121.

[0063] Selectably, the first signal line 121 includes a power supply signal line or a reference voltage signal line, and the second signal line 125 includes a data signal line.

[0064] In some optional embodiments, the display panel 10 further includes an emissive layer 400 and a first electrode layer 500, where the emissive layer 400 is located on one side of the substrate 100, the emissive layer 400 includes an emissive unit 410 located in the isolation opening 240, the first electrode layer 500 is located on a side of the emissive layer 400 away from the substrate 100, the first electrode layer 500 includes a first electrode 510 located in the isolation opening 240, and the first electrode 510 is electrically connected to the isolation structure 200.

[0065] In these optional embodiments, the isolation structure 200 divides the first electrode layer 500 to form first electrodes 510 spaced apart from each other, and the spaced apart first electrodes 510 are electrically connected via the isolation structure 200 to form a full-surface electrode, thereby ensuring normal emission of the light-emitting unit 410.

[0066] In some alternative embodiments, the orthogonal projection of each light-emitting unit 410 on the substrate 100 is located within the orthogonal projection of each first electrode 510 on the substrate 100 .

[0067] In these optional embodiments, the orthogonal projection of the light-emitting unit 410 on the substrate 100 is located within the orthogonal projection of the first electrode 510 on the substrate 100, i.e., the first electrode 510 is disposed covering the light-emitting unit 410 and serves as an electrode of the light-emitting unit 410 to ensure normal emission of the light-emitting unit 410 and improve the display effect of the display panel 10.

[0068] Optionally, the light-emitting units 410 and the isolation structure 200 are spaced apart, i.e., the light-emitting units 410 are spaced apart from each other, so as to reduce carrier crosstalk between the light-emitting units 410 and improve the cross-color problem of the light-emitting units 410.

[0069] In some optional embodiments, the isolation structure 200 includes a first conductive layer 210 and a second layer 220 located on a side of the first conductive layer 210 away from the substrate 100, and a positive projection of the first conductive layer 210 on the substrate 100 is located within a positive projection of the second layer 220 on the substrate 100.

[0070] In these optional embodiments, the first conductive layer 210 and the second layer 220 are arranged to form an isolation structure 200, the orthogonal projection of the first conductive layer 210 arranged adjacent to the substrate 100 is located within the orthogonal projection of the second layer 220 on the substrate 100, the area of ​​the second layer 220 is larger than the area of ​​the first conductive layer 210, and the second layer 220 covers the surface of the first conductive layer 210 adjacent to the second layer 220, and at this time, the first conductive layer 210 is recessed in a direction away from the isolation opening 240 relative to the second layer 220. When manufacturing the light-emitting layer 400, the light-emitting layer 400 has a large step at the edge of the isolation structure 200, and the first conductive layer 210 is recessed inward relative to the second layer 220, so that the light-emitting layer 400 is difficult to connect at the edge of the isolation structure 200, and a break occurs, and the light-emitting layer 400 is broken to form light-emitting units 410 that are disconnected from each other.

[0071] In some alternative embodiments, the second layer 220 includes a conductive material or an insulating material.

[0072] In these alternative embodiments, the second layer 220 includes a conductive material, for example, the second layer 220 includes a non-metallic conductive material or a metallic conductive material. If the second layer 220 is a non-metallic conductive material or an insulating material, the second layer 220 is less likely to be etched during the process of wet etching the first conductive layer 210 using an etching solution, and the first conductive layer 210 is more likely to be recessed inward relative to the second layer 220.

[0073] In some alternative embodiments, the second layer 220 includes a metallic material, and the materials of the first conductive layer 210 and the second layer 220 are different.

[0074] In these alternative embodiments, when the first conductive layer 210 and the second layer 220 are both made of metal materials, the first conductive layer 210 can be wet-etched using an etching solution, and the etching solution can be provided to make the etching rate of the second layer 220 lower than the etching rate of the first conductive layer 210. Since the etching rate of the first conductive layer 210 is high, when wet etching is performed using an etching solution, even if the second layer 220 is etched to a certain extent, the etching rate of the first conductive layer 210 is faster, and the first conductive layer 210 is recessed inward relative to the second layer 220.

[0075] Referring to FIG. 10, FIG. 10 is a partial cross-sectional view of a display panel according to another embodiment.

[0076] As shown in FIG. 10 , in some optional embodiments, the isolation structure 200 further includes a third layer 230 located on the side of the first conductive layer 210 facing the substrate 100, and the orthogonal projection of the first conductive layer 210 on the substrate 100 is located within the orthogonal projection of the third layer 230 on the substrate 100.

[0077] In these alternative embodiments, during the etching process to obtain the recessed first conductive layer 210, the first conductive layer 210 has a faster etching rate than the second layer 220 and the third layer 230, thereby forming the recessed first conductive layer 210. Due to the fast etching rate of the first conductive layer 210, the etching waste is likely to enter other positions of the display panel 10 and cause adverse effects. After the third layer 230 is installed, the first conductive layer 210 adheres well on the third layer 230, and the generated etching waste falls onto the third layer 230, making it easy to clean.

[0078] In some optional embodiments, the display panel 10 further includes a pixel definition layer 600, which is located on one side of the substrate 100, and which includes a pixel limiting portion 610 and a pixel opening 620 surrounded by the pixel limiting portion 610, the pixel opening 620 communicating with the isolation opening 240, and the light-emitting unit 410 is located in the pixel opening 620.

[0079] In these optional embodiments, the pixel opening 620 surrounded by the pixel limiting portion 610 is used to install the light emitting unit 410 and realize the light emitting display of the display panel 10. The pixel opening 620 is connected to the isolation opening 240, so that the blocking of the pixel opening 620 by the isolation structure 200 is reduced and the light emitting effect of the light emitting unit 410 can be ensured.

[0080] In some alternative embodiments, the isolation structure 200 is located on the side of the pixel limiting portion 610 away from the substrate 100 .

[0081] In these alternative embodiments, the isolation structure 200 is disposed in the pixel limiting portion 610, and the isolation structure 200 has a large step with respect to the pixel opening 620. When manufacturing the light-emitting layer 400, the large step allows the light-emitting layer 400 to be cut more easily at the position of the isolation structure 200, which reduces the difficulty of manufacturing the light-emitting layer 400.

[0082] As shown in FIG. 10 , in some alternative embodiments, a second opening 630 is opened in the pixel limiting portion 610 , and the isolation structure 200 is located in the second opening 630 .

[0083] In these optional embodiments, the isolation structure 200 is disposed in the second opening 630 in the pixel limiting portion 610, and during the manufacturing process, the manufacturing step of the isolation structure 200 is before the manufacturing of the pixel electrode 640, that is, after manufacturing the isolation structure 200 on the substrate 100, the pixel electrode 640 is manufactured on the substrate 100, thereby reducing the impact on the pixel electrode 640 caused by the manufacturing of the isolation structure 200 and ensuring that the pixel electrode 640 is not damaged.

[0084] Optionally, the display panel 10 further includes a pixel electrode 640 exposed from the pixel opening 620, where one of the pixel electrode 640 and the first electrode 510 is used as an anode of the light-emitting unit 410, and the other is used as a cathode of the light-emitting unit 410. In the embodiments of the present application, an example is taken in which the pixel electrode 640 is used as the anode of the light-emitting unit 410, and the first electrode 510 is used as the cathode of the light-emitting unit 410.

[0085] Referring to FIG. 11, FIG. 11 is a partial cross-sectional view of a display panel according to another embodiment.

[0086] As shown in FIG. 11, in some optional embodiments, the display panel 10 further includes a sealing layer 700 located on the side of the first electrode 510 away from the substrate 100 .

[0087] In these optional embodiments, the sealing layer 700 is provided on the side of the first electrode 510 away from the substrate 100 to seal the first electrode 510 and the light-emitting layer 400, thereby reducing the possibility of moisture and oxygen intrusion and improving the service life of the display panel 10.

[0088] In some alternative embodiments, the encapsulating layer 700 includes a first sublayer 710 , which is located on the side of the light-emitting layer 400 away from the substrate 100 .

[0089] In these optional embodiments, the first sub-layer 710 is disposed on the side of the first electrode 510 away from the substrate 100, thereby sealing the first electrode 510 and the light-emitting layer 400, reducing the possibility of moisture and oxygen intrusion, and improving the service life of the display panel 10.

[0090] Optionally, the first sub-layer 710 includes a first sub-portion 711, which is located within the isolation opening 240, and can be projected onto the substrate 100 to cover the light-emitting unit 410 and realize a first sealing for the light-emitting unit 410 and the first electrode 510.

[0091] Optionally, the first sub-layer 710 includes an inorganic material, which has good density and good barrier properties against water vapor and oxygen.

[0092] In some alternative embodiments, the encapsulation layer 700 further includes a second sub-layer 720 , the second sub-layer 720 being located on a side of the first sub-layer 710 away from the substrate 100 .

[0093] In these alternative embodiments, the encapsulating layer 700 includes a first sub-layer 710 and a second sub-layer 720, and the first sub-layer 710 and the second sub-layer 720 are used to perform multi-layer encapsulation to further improve the sealing performance of the encapsulating layer 700.

[0094] Optionally, second sub-layer 720 includes second sub-portion 721, a portion of which fills within light-transmitting aperture 250 to achieve planarization relative to the first aperture.

[0095] Optionally, the second sub-layer 720 includes an organic material, and the second sub-layer 720 is encapsulated with the organic material to further improve the encapsulating performance of the encapsulation layer 700 .

[0096] Optionally, the sealing layer 700 further includes a third sub-layer 730, which is located on the side of the second sub-layer 720 away from the substrate 100, and the sealing layer 700 adopts three-layer sealing, has excellent sealing performance, and can reduce the possibility of moisture and oxygen intrusion.

[0097] Optionally, the third sub-layer 730 includes an inorganic material, and the first sub-layer 710, the second sub-layer 720 and the third sub-layer 730 are encapsulated using an inorganic material, an organic material and an inorganic material, respectively, to form a TFE (Thin Film Encapsulation) thin film encapsulation structure, which further improves the encapsulation performance of the encapsulation layer 700.

[0098] Optionally, the light-emitting layer 400 includes an electron-injecting layer (EIL), an electron-transporting layer (ETL), a layer of light-emitting material, a hole-injecting layer (HIL), and a hole-transporting layer (HTL).

[0099] The structural design of this embodiment can be applied to other display panels 10, and the specifics can be selected according to the actual situation, and the present application does not specifically limit it.

[0100] An embodiment of the second aspect of the present application further provides a display device including the display panel 10 according to any of the embodiments of the first aspect. Since the display device according to the embodiment of the second aspect of the present application includes the display panel 10 according to any of the embodiments of the first aspect, the display device according to the embodiment of the second aspect of the present application has the beneficial effects of the display panel 10 according to any of the embodiments of the first aspect, and the description thereof will be omitted here.

[0101] The display devices according to the embodiments of the present application include, but are not limited to, devices having a display function, such as mobile phones, personal digital assistants (abbreviated as PDAs), tablet computers, e-books, televisions, door controls, smart landlines, and consoles.

[0102] The embodiment of the third aspect of the present application further provides a method for manufacturing a display panel 10, which may be any of the display panels 10 according to the embodiments of the first aspect described above, and referring to Fig. 12 together with Figs. 1 to 11, Fig. 12 is a flowchart of the method for manufacturing a display panel according to the embodiment of the present application. The manufacturing method includes the following steps.

[0103] In step S01, a substrate is manufactured, the substrate including a signal transmission layer and a signal shielding layer, the signal shielding layer being located on a side of the signal transmission layer away from the substrate, the signal shielding layer including a first signal line and a light transmission shielding portion.

[0104] In step S02, an isolation structure is fabricated on a substrate, and is surrounded by the isolation structure to form an isolation opening and a light-transmitting opening, the isolation opening is for providing a light-emitting unit, and the orthogonal projection of the light-transmitting opening on the substrate at least partially overlaps with the orthogonal projection of the light-transmitting shielding portion on the substrate.

[0105] In step S03, a touch layer is fabricated on the side of the signal shielding layer away from the signal transmitting layer.

[0106] According to the manufacturing method of the embodiment of the third aspect of the present application, a substrate 100 is manufactured by step S01, and the substrate 100 includes a signal transmission layer 110 and a signal shielding layer 120. Then, an isolation structure 200 is manufactured by step S02. Finally, a touch layer 300 is manufactured by step S03. The isolation structure 200 is provided on the substrate 100, and is used to surround and form a plurality of isolation openings 240, and to divide the light-emitting layer 400 to form the light-emitting units 410 that are cut from each other, thereby reducing the crosstalk of carriers in the light-emitting layer 400, improving the display effect of the display panel 10, and eliminating the need to use a precision mask to manufacture the light-emitting units 410, which reduces the development and use of precision masks and reduces manufacturing costs. A light-transmitting opening 250 is opened in the isolation structure 200, which can improve the transmittance of the display panel 10. The signal shielding layer 120 includes a first signal line 121 and a light-transmitting shielding portion 122, and is located on a side of the signal transmission layer 110 that is farther from the substrate 100. The orthogonal projection of the light-transmitting opening 250 on the substrate 100 at least partially overlaps with the orthogonal projection of the light-transmitting shielding portion 122 on the substrate 100, i.e., the light-transmitting shielding portion 122 shields at least a part of the light-transmitting opening 250, so that the touch signal of the touch layer 300 is at least partially shielded by the light-transmitting shielding portion 122 after passing through the light-transmitting opening 250, thereby solving the problem that the touch signal of the touch layer 300 and the array signal of the substrate 100 affect each other through the light-transmitting opening 250, and improving the performance of an OLED display product.

[0107] According to the above examples of the present application, these examples do not detail all the details, and do not limit the present invention only to the above specific examples. In light of the above description, it is clear that many amendments and modifications are possible. In this specification, these examples are selected and specifically described in order to better explain the principles and practical applications of the present application, so that those skilled in the art can fully utilize the present application and amendments based on the present application. The present application is limited only by the claims and the full scope and equivalents thereof.

[0108] Explanation of symbols 10 Display Panel 100 Substrates 110 Signal Transmission Layer 120 Signal Shielding Layer 121 First signal line 122 Light transmission shielding part 123 Gap 124 First Opening 125 Second signal line 200 Isolation structure 210 First conductive layer 220 2nd layer 230 3rd layer 240 Isolation opening 250 light transmission aperture 300 touch layers 400 luminous layer 410 Light Emitting Unit 500 1st electrode layer 510 1st electrode 600 pixel definition layer 610 Pixel Limited Section 620 pixel aperture 630 Second Opening 640 Pixel electrode 700 Sealing layer 710 1st Sublayer 711 First subpart 720 Second Sub-layer 721 Second subpart 730 3rd Sub-layer

Claims

1. a substrate, an isolation structure, and a touch layer; the substrate includes a signal transmission layer and a signal shielding layer, the signal shielding layer is located on a side of the signal transmission layer that is away from the substrate, and the signal shielding layer includes a first signal line and a light transmission shielding portion; the isolation structure is located on one side of the substrate and is surrounded by the isolation structure to form an isolation opening and a light-transmitting opening, the isolation opening is for providing a light-emitting unit, and an orthogonal projection of the light-transmitting opening on the substrate and an orthogonal projection of the light-transmitting shielding portion on the substrate at least partially overlap with each other; the touch layer is located on a side of the signal shielding layer away from the signal transmission layer; A display panel characterized by:

2. an orthogonal projection of the light-transmitting opening on the substrate is located within an orthogonal projection of the light-transmitting shielding portion on the substrate; and / or the light transmitting / shielding portion and the first signal line are connected to each other; 2. The display panel according to claim 1 .

3. the first signal lines are provided in a plurality, the plurality of first signal lines are provided in parallel, adjacent first signal lines are provided at intervals to form a gap, the light transmitting shielding portion is located within the gap, the light transmitting / shielding portion is electrically connected to one or more adjacent first signal lines; One of the light transmitting and shielding portions is provided corresponding to one of the light transmitting openings, and / or one of the light transmitting and shielding portions is provided corresponding to a plurality of the light transmitting openings.

2. The display panel according to claim 1 .

4. an orthogonal projection of the light transmitting shielding portion on the substrate at least partially overlaps with an orthogonal projection of the first signal line on the substrate; an orthogonal projection of the first signal line on the substrate is located within an orthogonal projection of the light transmitting and blocking portion on the substrate; 2. The display panel according to claim 1 .

5. a first opening is formed by being surrounded by the light transmission shielding portion, the signal shielding layer further includes a second signal line, the first signal line and the second signal line are located within the first opening, and the second signal line is provided in a spaced-apart and insulated manner from the light transmission shielding portion and the first signal line, Both ends of the first signal line are overlapped and connected to the light transmission shielding portion.

2. The display panel according to claim 1 .

6. the light-transmitting shielding portion and the first signal line are made of different materials, and the first signal line is made of a non-light-transmitting conductive material; The light transmitting shielding portion includes indium tin oxide or indium zinc oxide, the first signal line includes a power supply signal line and / or a reference voltage signal line; 2. The display panel according to claim 1 .

7. The display panel further includes a light emitting layer and a first electrode layer, the light-emitting layer is located on one side of the substrate and includes the light-emitting units located in the isolation openings; the first electrode layer is located on a side of the light emitting layer away from the substrate and includes a first electrode located in the isolation opening, the first electrode being electrically connected to the isolation structure; The orthogonal projection of each of the light-emitting units on the substrate is located within the orthogonal projection of each of the first electrodes on the substrate; The light emitting unit and the isolation structure are spaced apart from each other, the isolation structure includes a first conductive layer and a second layer located on a side of the first conductive layer away from the substrate, an orthogonal projection of the first conductive layer on the substrate being located within an orthogonal projection of the second layer on the substrate; the isolation structure further includes a third layer located on a side of the first conductive layer facing the substrate, and an orthogonal projection of the first conductive layer on the substrate is located within an orthogonal projection of the third layer on the substrate.

2. The display panel according to claim 1 .

8. The display panel further includes a pixel definition layer disposed on one side of the substrate, the pixel definition layer includes a pixel defining portion and a pixel opening surrounded by the pixel defining portion, the pixel opening communicates with the isolation opening, and the light emitting unit is located in the pixel opening; the isolation structure is located on a side of the pixel limiting portion that is away from the substrate, a second opening is formed in the pixel limiting portion, and the isolation structure is located in the second opening; the display panel further includes a pixel electrode exposed through the pixel opening; 2. The display panel according to claim 1 .

9. A display device comprising the display panel according to any one of claims 1 to 8.

10. manufacturing a substrate, the substrate including a signal transmission layer and a signal shielding layer, the signal shielding layer being located on a side of the signal transmission layer away from the substrate, the signal shielding layer including a first signal line and a light transmission shielding portion; fabricating an isolation structure on the substrate, the isolation structure surrounding the isolation structure forming an isolation opening and a light-transmitting opening, the isolation opening being for providing a light-emitting unit, and an orthogonal projection of the light-transmitting opening on the substrate at least partially overlaps with an orthogonal projection of the light-transmitting shielding portion on the substrate; and fabricating a touch layer on a side of the signal shielding layer away from the signal transmitting layer. A method for manufacturing a display panel comprising the steps of:

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