Display panel and display device

Abstract

The invention relates to a display panel and a display device. The display panel includes a substrate; the light-emitting unit is arranged on one side of the substrate, and the light-emitting unit comprises a first electrode, a light-emitting functional layer and a second electrode which are stacked in the direction away from the substrate; the isolation structures are arranged on one side of the substrate, and the adjacent light emitting units are arranged at intervals through the isolation structures; wherein the isolation structure comprises a first touch control part and a first conductive part, and the first touch control part and the first conductive part are arranged on the same layer and are electrically insulated; and the second electrode is electrically connected with the first conductive part. Therefore, compared with a display panel adopting an On-Cell technology, on one hand, the number of film layers of the touch module is reduced, so that masks are reduced, and the manufacturing cost is reduced; on the other hand, the thickness of the display panel is reduced, and lightening and thinning of the display panel are facilitated.

Description

Technical Field

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

[0002] Recently, organic light emitting diode (OLED) display devices have attracted much attention as next generation display devices. OLED is a self-emissive device in which light is emitted from an organic emission layer due to the recombination of electrons and holes, has high brightness and low driving voltage, and enables the construction of ultra-thin devices.

[0003] There is an increasing demand for adding a touch panel to an OLED display device to send information to the OLED display device by touching a portion of the touch panel with a hand or a separate input member. Conventional touch panels are divided into three types: Add-On type, On-Cell type, and In-Cell type. The Add-On touch panel is attached to the outer surface of the OLED display device, the On-Cell touch panel is set on the OLED display panel, and the In-Cell touch panel is installed inside the OLED display panel. However, the OLED display device currently using On-Cell technology has the problems of high production cost and thick product thickness. Summary of the invention

[0004] Based on this, it is necessary to provide a display panel and a display device to address at least one of the above problems.

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

[0006] substrate;

[0007] A light-emitting unit is disposed on one side of the substrate, and the light-emitting unit includes a first electrode, a light-emitting functional layer, and a second electrode stacked in a direction away from the substrate;

[0008] An isolation structure is arranged on one side of the substrate, and adjacent light-emitting units are spaced apart by the isolation structure;

[0009] The isolation structure includes a first touch portion and a first conductive portion, the first touch portion and the first conductive portion are arranged in the same layer and are electrically insulated; and the second electrode is electrically connected to the first conductive portion.

[0010] The display panel provided by the embodiment of the present application sets the first touch control part and the first conductive part in the same layer, which is equivalent to making the first touch control part on the isolation structure. When making the first conductive part of the isolation structure, the first touch control part can be made simultaneously. In this way, compared with the display panel using the On-Cell technology, on the one hand, the number of film layers of the touch control module is reduced, thereby reducing the mask and the production cost; on the other hand, the thickness of the display panel is reduced, which is conducive to the thinness of the display panel.

[0011] In one embodiment, there are a plurality of first conductive portions, an isolation gap is formed between adjacent first conductive portions, and the first touch portion is disposed in the isolation gap; each first conductive portion defines a first opening, and the light emitting unit is disposed in the first opening;

[0012] Optionally, the orthographic projection of the first conductive portion on the substrate is a closed ring.

[0013] In this way, on the one hand, it can be ensured that the isolation structure can isolate the evaporated materials of adjacent light-emitting units; on the other hand, it can be ensured that the isolation structure can realize the touch function.

[0014] In one embodiment, the first touch portion includes a plurality of sub-touch blocks; adjacent sub-touch blocks are arranged at intervals on the same side of the substrate;

[0015] Optionally, each of the sub-touch blocks is at least disposed around at least a portion of the periphery of one of the first conductive portions;

[0016] Optionally, the orthographic projection of the sub-touch blocks on the substrate is in a grid shape;

[0017] Optionally, the plurality of sub-touch blocks are arranged in rows along a first direction, and are arranged in columns along a second direction intersecting the first direction.

[0018] In this way, only one touch film layer may be provided in the display panel to enable the display panel to have a touch function, thereby reducing the thickness of the display panel.

[0019] In one embodiment, the display panel further includes:

[0020] A first functional layer is disposed on a side of the isolation structure away from the substrate;

[0021] A second touch portion, disposed on a side of the first functional layer away from the substrate;

[0022] Wherein, one of the first touch control portion and the second touch control portion is configured as a transmitting electrode, and the other is configured as a receiving electrode;

[0023] Optionally, the first touch control portion includes a plurality of first sub-electrodes arranged at intervals along a first direction, and the second touch control portion includes a plurality of second sub-electrodes arranged at intervals along a second direction; the first direction intersects with the second direction;

[0024] Optionally, the orthographic projection of each of the first sub-electrodes on the substrate is in a grid shape;

[0025] Optionally, the first functional layer is configured as an encapsulation layer.

[0026] In this way, by providing two touch film layers, the touch precision and accuracy of the display panel can be improved.

[0027] In one embodiment, the display panel further includes:

[0028] A second functional layer is disposed on a side of the isolation structure close to the substrate;

[0029] An auxiliary electrode is disposed on a side of the second functional layer close to the substrate; the first conductive portion is electrically connected to the auxiliary electrode;

[0030] Optionally, an orthographic projection of the auxiliary electrode on the substrate and an orthographic projection of the first conductive portion on the substrate have an overlapping area; the display panel further comprises a first via hole connection structure, and the first conductive portion is electrically connected to the auxiliary electrode through the first via hole connection structure;

[0031] Optionally, the orthographic projection of the first conductive portion on the substrate covers the orthographic projection of the first via connection structure on the substrate;

[0032] Optionally, the second functional layer is configured as a pixel defining layer, the pixel defining layer encloses a pixel opening, and the light emitting unit is disposed in the pixel opening.

[0033] In this way, the second electrode can be connected to the pixel driving circuit through the first conductive part of the isolation structure and the auxiliary electrode, thereby reducing the wiring arrangement of the display area.

[0034] In one embodiment, the orthographic projection of the auxiliary electrode on the substrate has an overlapping area with the orthographic projection of the first touch portion on the substrate;

[0035] Optionally, the auxiliary electrode comprises a first part and a second part connected to each other, an orthographic projection of the first part on the substrate and an orthographic projection of the first conductive part on the substrate have an overlapping area, and the first part is connected to the first conductive part through the first via connection structure;

[0036] An orthographic projection of the second portion on the substrate and an orthographic projection of the first touch portion on the substrate have an overlapping area.

[0037] In this way, on the one hand, it can play a shielding role to reduce the electrical interference of the first touch portion to the components on the substrate, and on the other hand, it can serve as an auxiliary touch electrode.

[0038] In one embodiment, the display panel further includes:

[0039] A chip is disposed on one side of the substrate;

[0040] A first touch line, one end of which is electrically connected to the first touch portion, and the other end of which is electrically connected to the chip; the first touch line and the first conductive portion are disposed in the same layer and are electrically insulated.

[0041] In this way, the first conductive portion and the first touch control wiring can be manufactured simultaneously in the same process, thereby reducing masks and reducing manufacturing costs.

[0042] In one embodiment, the isolation structure includes a first blocking portion, and the first blocking portion is disposed on a side of the first conductive portion away from the substrate;

[0043] The orthographic projection of the first blocking portion on the substrate is located outside the outer contour of the orthographic projection of the first conductive portion on the substrate;

[0044] Optionally, the first blocking portion is configured as an insulating film layer.

[0045] In this way, the isolation structure can have better partition performance.

[0046] In one embodiment, the isolation structure further includes a second blocking portion, and the second blocking portion is disposed on a side of the first touch portion away from the substrate; the second blocking portion is disposed in the same layer as the first blocking portion;

[0047] Optionally, the orthographic projection of the second blocking portion on the substrate is located outside an outer contour of the orthographic projection of the first touch portion on the substrate.

[0048] In this way, the isolation structure can have better partition performance.

[0049] In a second aspect, an embodiment of the present application provides a display device, which includes the display panel in any embodiment of the first aspect.

[0050] The display device provided by the embodiment of the present application sets the first touch control part and the first conductive part in the same layer, which is equivalent to making the first touch control part on the isolation structure. When making the first conductive part of the isolation structure, the first touch control part can be made simultaneously. In this way, compared with the display panel using the On-Cell technology, on the one hand, the number of film layers of the touch control module is reduced, thereby reducing the mask and reducing the production cost; on the other hand, the thickness of the display panel is reduced, which is conducive to the thinness of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 A schematic diagram of the structure of a display panel provided in one embodiment of the present application.

[0052] Figure 2 A schematic cross-sectional structure diagram of another display panel provided in an embodiment of the present application.

[0053] Figure 3 for Figure 2 A schematic diagram of the partial structure of the display panel is shown.

[0054] Figure 4 for Figure 1 A schematic top view of a partial structure of a display panel is shown.

[0055] Figure 5 A schematic top view of another display panel provided in an embodiment of the present application.

[0056] Figure 6 for Figure 5 A schematic cross-sectional structure diagram of an isolation structure, a pixel defining layer and an auxiliary electrode of a display panel is shown.

[0057] Figure 7 for Figure 5 A schematic diagram of the connection between the isolation structure of the display panel and the light-emitting unit is shown.

[0058] Figure 8 for Figure 5 A schematic cross-sectional structure diagram of a first touch control portion, a pixel defining layer and a second blocking portion of a display panel is shown.

[0059] Fig. 9 for Figure 5 A schematic diagram of the cross-sectional structure of a first touch portion, a pixel defining layer, a second blocking portion and an auxiliary electrode of a display panel is shown.

[0060] Fig.10 A schematic cross-sectional structure diagram of another display panel provided in an embodiment of the present application.

[0061] Fig.11 for Fig.10 A schematic top view of the local structure of the display panel is shown.

[0062] Fig.12 A schematic diagram of the structure of a display device provided in one embodiment of the present application.

[0063] Description of reference numerals:

[0064] 1. Display device; 10. Display panel; 10a. Display area; 10b. Non-display area; 11. Substrate; 12. Light-emitting unit; 12a. First light-emitting unit; 12b. Second light-emitting unit; 12c. Third light-emitting unit; 121. First electrode; 122. Light-emitting functional layer; 123. Second electrode; 13. Isolation structure; 13a. First opening; 131. First conductive part; 132. First blocking part; 133. First touch part; 1331. Sub-touch block; 1332. First sub-electrode; 134. Second blocking part; 14. Second touch part; 15. Encapsulation layer; 151. First inorganic layer; 152. Organic layer; 153. Second inorganic layer; 16. Auxiliary electrode; 161. First part; 162. Second part; 17. Pixel defining layer; 171. Pixel opening; 172. First via connection structure; 18. Chip; 19. First touch trace. DETAILED DESCRIPTION

[0065] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive.

[0066] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0067] In this document, spatially related terms such as "upper" and "lower" are defined with reference to the accompanying drawings. Therefore, it will be understood that "upper" and "lower" are used interchangeably. It will be understood that when a layer is referred to as being "on" another layer, it can be directly formed on the other layer, or intervening layers may also be present. Therefore, it will be understood that when a layer is referred to as being "directly on" another layer, there are no intervening layers interposed therebetween.

[0068] In the accompanying drawings, the sizes of layers and regions may be exaggerated for clarity. It is understood that when a layer or element is referred to as being "on" another layer or substrate, the layer or element may be directly on the other layer or substrate, or there may be an intermediate layer. In addition, it is also understood that when a layer is referred to as being "between" two layers, the layer may be the only layer between the two layers, or there may be one or more intermediate layers. In addition, the same reference numerals always represent the same elements.

[0069] Hereinafter, although terms such as "first", "second", etc. may be used to describe various components, these components are not necessarily limited to the above terms. The above terms are only used to distinguish one component from another component. It will also be understood that expressions used in the singular form include plural expressions, unless the expression in the singular form has a significantly different meaning in the context. In addition, in the following embodiments, it will also be understood that the terms "comprising" and / or "having" used herein illustrate the presence of the stated features or components, but do not exclude the presence or addition of one or more other features or components.

[0070] In the following embodiments, when a layer, region, or element is "connected", it can be interpreted that the layer, region, or element is not only directly connected but also connected through other constituent elements placed therebetween. For example, when a layer, region, element, etc. is described as being connected or electrically connected, the layer, region, element, etc. can be connected or electrically connected not only directly or directly, but also through another layer, region, element, etc. placed therebetween.

[0071] As used in the application documents, the term "and / or" includes any and all combinations of one or more of the related listed items. When a statement such as "at least one (one) of..." is placed after a list of elements, it modifies the entire list of elements, rather than modifying the individual elements in the list.

[0072] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0073] It should also be understood that the terms “include / comprises” or “having” and the like specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0074] It should also be understood that when interpreting an element, even if not explicitly described, the element is interpreted as including a range of error, which should be within the acceptable deviation range of the specific value determined by those skilled in the art. For example, "approximately", "approximately" or "substantially" can mean within one or more standard deviations, which are not limited here.

[0075] Furthermore, in the specification, the phrase “planar distribution schematic diagram” refers to a drawing when a target portion is viewed from above, and the phrase “cross-sectional schematic diagram” refers to a drawing when a section taken by vertically cutting the target portion is viewed from the side.

[0076] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of the elements in the drawings are drawn only as examples and not necessarily according to the true scale.

[0077] As described in the background technology, in the relevant OLED display device, when making a touch panel, at least three masks are required, wherein one mask is used to make a touch electrode, one mask is used to make an insulating layer on the touch electrode, and one mask is used to make a bridge layer of the touch electrode. Thus, on the one hand, the use of more masks leads to a higher production cost, and on the other hand, the touch panel has more film layers, resulting in a thicker product thickness.

[0078] In view of this, the embodiments of the present application provide a display panel and a display device. By setting the first touch part and the first conductive part in the same layer, it is equivalent to making the first touch part on the isolation structure. Compared with the display panel using On-Cell technology, on the one hand, the number of film layers of the touch module is reduced, thereby reducing masks and reducing the production cost; on the other hand, the thickness of the display panel is reduced, which is conducive to the thinness of the display device.

[0079] First, refer to Figure 1 , Figure 2 and Figure 3 As shown, an embodiment of the present application provides a display panel 10 with a touch function, and the display panel 10 may be an OLED (Organic Light Emitting Diode) display panel.

[0080] Specifically, the display panel 10 includes a substrate 11 , a light emitting unit 12 and an isolation structure 13 .

[0081] The light-emitting unit 12 is disposed on one side of the substrate 11, and includes a first electrode 121, a light-emitting functional layer 122, and a second electrode 123 stacked in a direction away from the substrate 11. The isolation structure 13 is disposed on one side of the substrate 11, and the isolation structure 13 is located between adjacent light-emitting units 12, and adjacent light-emitting units 12 are spaced apart by the isolation structure 13.

[0082] Furthermore, the isolation structure 13 includes a first touch portion 133 and a first conductive portion 131 , which are disposed in the same layer and are electrically insulated from each other. The second electrode 123 is electrically connected to the first conductive portion 131 .

[0083] It is understood that the substrate 11 may be an array substrate. In the embodiment of the present application, the "isolation structure 13" refers to a structure that can isolate the evaporated material of the light-emitting unit 12. In one example, the first conductive portion 131 is a single-layer structure. For example, the first conductive portion 131 may be a metal layer or a metal oxide layer. In another example, the first conductive portion 131 is a laminated structure, that is, the first conductive portion 131 includes at least two metal layers.

[0084] It should be noted that the first electrode 121 may be an anode, and the second electrode 123 may be a cathode. Both the first electrode 121 and the second electrode 123 are electrically connected to a pixel driving circuit in the array substrate.

[0085] It is understood that the light-emitting functional layer 122 includes at least a light-emitting layer (Emission layer, EML), and may also include one or more of a hole injection layer (HIL), a hole transport layer (HTL), an electron injection layer (EIL), an electron transport layer (ETL), a hole blocking layer (HBL) and an electron blocking layer (EBL). Alternatively, the light-emitting functional layer 122 may also be a laminated light-emitting layer, that is, including at least two light-emitting layers and a charge generation layer (CGL) located between each adjacent light-emitting layer.

[0086] The display panel 10 provided in the embodiment of the present application, on the one hand, by electrically connecting the second electrode 123 with the first conductive portion 131 of the isolation structure 13, is equivalent to making the isolation structure 13 also have the function of transmitting power signals, thereby reducing the wiring of the display area 10a of the display panel 10. On the other hand, by arranging the first touch portion 133 and the first conductive portion 131 in the same layer, it is equivalent to making the first touch portion 133 on the isolation structure 13. When making the first conductive portion 131 of the isolation structure 13, the first touch portion 133 can be made simultaneously. In this way, compared with the display panel 10 using the On-Cell technology, on the one hand, the number of film layers of the touch module is reduced, thereby reducing the mask and reducing the production cost; on the other hand, the thickness of the display panel 10 is reduced, which is conducive to the thinness of the display panel 10.

[0087] In one embodiment, there are multiple first conductive portions 131, and an isolation gap is formed between adjacent first conductive portions 131. The first touch portion 133 is disposed in the isolation gap. Each first conductive portion 131 defines a first opening 13a, and the light emitting unit 12 is disposed in the first opening 13a.

[0088] By disposing the first touch portion 133 in the isolation gap, it can ensure that the first conductive portion 131 can be electrically connected to the second electrode 123 on the one hand; and it can ensure that the isolation structure 13 can achieve a touch function on the other hand.

[0089] It is understandable that there are multiple light emitting units 12, and multiple first conductive portions 131 define multiple first openings 13a. Each light emitting unit 12 can be correspondingly disposed in a first opening 13a.

[0090] In one example, the first conductive portion 131 defines a plurality of first openings 13 a.

[0091] In another example, referring to Figure 3 As shown, the first conductive portion 131 defines a first opening 13 a.

[0092] In one embodiment, the orthographic projection of the first conductive portion 131 on the substrate 11 is a closed ring, that is, the first conductive portion 131 is a ring structure. Exemplarily, the first conductive portion 131 can be a rectangular ring, a circular ring, a triangular ring, etc.

[0093] In this way, the isolation structure 13 can ensure the isolation effect on the evaporated material, thereby preventing the evaporated materials of adjacent light-emitting units 12 from being connected.

[0094] In one embodiment, referring to Figure 3 and Figure 4As shown, the first touch portion 133 includes a plurality of sub-touch blocks 1331. Adjacent sub-touch blocks 1331 are disposed at intervals on the same side of the substrate 11.

[0095] In this way, only one touch film layer (i.e., the first touch portion 133) can be provided in the display panel 10 to enable the display panel 10 to have a touch function, thereby reducing the thickness of the display panel 10. It should be noted that, in the embodiment of the present application, each sub-touch block 1331 is both a driving electrode and a receiving electrode, and the sub-touch block 1331 can realize the touch function through the self-capacitance principle with the assistance of other metal film layers on the display panel 10.

[0096] In one embodiment, each sub-touch block 1331 is at least disposed around at least a portion of the periphery of a first conductive portion 131. In this way, the area of ​​the sub-touch block 1331 can be maximized, thereby improving touch accuracy.

[0097] In one embodiment, the orthographic projection of the sub-touch block 1331 on the substrate 11 is in a grid shape, that is, the sub-touch block 1331 is a grid structure. Specifically, the grid-shaped sub-touch block 1331 may have a plurality of meshes, and the first conductive portion 131 and the light-emitting unit 12 may be disposed in the meshes. In one example, one first conductive portion 131 and one light-emitting unit 12 are disposed in the same mesh. In another example, two first conductive portions 131 and two light-emitting units 12 are disposed in the same mesh. The embodiments of the present application are not limited to this.

[0098] In one embodiment, the plurality of sub-touch blocks 1331 are arranged in rows along a first direction X, and in columns along a second direction Y intersecting the first direction X. In this way, the sub-touch blocks 1331 can be distributed more evenly, so that the touch accuracy of the display panel 10 is higher.

[0099] In one embodiment, referring to Fig. 9 and Fig.10 As shown, the display panel 10 further includes a first functional layer and a second touch portion 14, wherein the first functional layer is disposed on a side of the isolation structure 13 away from the substrate 11. The second touch portion 14 is disposed on a side of the first functional layer away from the substrate 11. Further, one of the first touch portion 133 and the second touch portion 14 is configured as a transmitting electrode, and the other is configured as a receiving electrode.

[0100] In this way, by providing two touch film layers (ie, the first touch portion 133 and the second touch portion 14 ), the touch precision and accuracy of the display panel 10 can be improved.

[0101] In one embodiment, the first touch portion 133 includes a plurality of first sub-electrodes 1332 arranged at intervals along a first direction X, and the second touch portion 14 includes a plurality of second sub-electrodes (not shown) arranged at intervals along a second direction Y. The first direction X and the second direction Y intersect.

[0102] In one embodiment, the orthographic projection of each first sub-electrode 1332 on the substrate 11 is in a grid shape. That is, the first sub-electrode 1332 is a grid-like structure. Specifically, the grid-like first sub-electrode 1332 may have a plurality of meshes, and the first conductive portion 131 and the light-emitting unit 12 may be arranged in the meshes. In one example, one first conductive portion 131 and one light-emitting unit 12 are arranged in the same mesh. In another example, two first conductive portions 131 and two light-emitting units 12 are arranged in the same mesh. The embodiment of the present application is not limited to this.

[0103] In one embodiment, the first functional layer is configured as an encapsulation layer 15. Specifically, the encapsulation layer 15 includes a first inorganic layer 151, an organic layer 152, and a second inorganic layer 153 that are stacked. The second touch portion 14 is disposed on a side of the second inorganic layer 153 away from the substrate 11. Furthermore, an insulating film layer (not shown) is also disposed on a side of the second touch portion 14 away from the substrate 11 to prevent the second touch portion 14 from short-circuiting.

[0104] It is understandable that the first functional layer may also be a color filter layer or a planarization layer. The embodiment of the present application does not limit the type of the first functional layer.

[0105] In one embodiment, referring to Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the display panel 10 further includes a second functional layer and an auxiliary electrode 16. The second functional layer is disposed on a side of the isolation structure 13 close to the substrate 11. The auxiliary electrode 16 is disposed on a side of the second functional layer close to the substrate 11. The first conductive portion 131 is electrically connected to the auxiliary electrode 16.

[0106] In the embodiment of the present application, the auxiliary electrode 16 is equivalent to an auxiliary cathode. On the one hand, it is convenient to connect the second electrode 123 to the pixel driving circuit; on the other hand, it can reduce the resistance of the second electrode 123, thereby improving the power consumption of the display panel 10.

[0107] In one embodiment, the orthographic projection of the auxiliary electrode 16 on the substrate 11 overlaps with the orthographic projection of the first conductive portion 131 on the substrate 11. The display panel 10 further includes a first via hole connection structure 172, through which the first conductive portion 131 and the auxiliary electrode 16 are electrically connected.

[0108] In this way, the second electrode 123 can be connected to the pixel driving circuit through the first conductive portion 131 , the first via connection structure 172 and the auxiliary electrode 16 , thereby reducing the wiring of the display area 10 a .

[0109] In one embodiment, the orthographic projection of the first conductive portion 131 on the substrate 11 covers the orthographic projection of the first via hole connection structure 172 on the substrate 11. In this way, when the first conductive portion 131 is manufactured, it is convenient to electrically connect the first conductive portion 131 with the first via hole connection structure 172.

[0110] In one embodiment, the second functional layer is configured as a pixel defining layer 17 , the pixel defining layer 17 encloses a pixel opening 171 , and the light emitting unit 12 is disposed in the pixel opening 171 .

[0111] By providing the pixel defining layer 17 , it is convenient to provide the light emitting unit 12 on the substrate 11 . It can be understood that a plurality of pixel openings 171 are provided on the pixel defining layer 17 .

[0112] In one embodiment, the plurality of first openings 13 a are connected to the plurality of pixel openings 171 in a one-to-one correspondence.

[0113] Here, it should be noted that “one-to-one correspondence” means that each first opening 13 a corresponds to one pixel opening 171 .

[0114] In another embodiment, one first opening 13 a corresponds to a plurality of pixel openings 171 , and the same type of light emitting unit 12 is disposed in each pixel opening 171 corresponding to the first opening 13 a .

[0115] In one embodiment, the orthographic projection of the auxiliary electrode 16 on the substrate 11 and the orthographic projection of the first touch portion 133 on the substrate 11 have an overlapping area.

[0116] In this way, the auxiliary electrode 16 can play a shielding role to reduce the electrical interference of the first touch portion 133 on the elements on the substrate 11 .

[0117] It should be noted that when this embodiment is applied to an implementation method in which the first touch portion 133 includes multiple sub-touch blocks 1331, the auxiliary electrode 16 can also serve as an auxiliary touch electrode, that is, a capacitor can be formed between the auxiliary electrode 16 and the sub-touch block 1331. In this way, whether a touch occurs can be determined by detecting the capacitance between the auxiliary electrode 16 and the sub-touch block 1331.

[0118] In one embodiment, referring to Figure 7 and Fig. 9As shown, the auxiliary electrode 16 includes a first portion 161 and a second portion 162 connected to each other, the orthographic projection of the first portion 161 on the substrate 11 and the orthographic projection of the first conductive portion 131 on the substrate 11 have an overlapping area, and the first portion 161 and the first conductive portion 131 are connected through a first via connection structure 172. The orthographic projection of the second portion 162 on the substrate 11 and the orthographic projection of the first touch portion 133 on the substrate 11 have an overlapping area.

[0119] In this way, on the one hand, the auxiliary electrode 16 can transmit power signals; on the other hand, the auxiliary electrode 16 can play a shielding role to reduce the electrical interference of the first touch part 133 to the elements on the substrate 11; on the other hand, in some embodiments, the auxiliary electrode 16 can serve as an auxiliary touch electrode, that is, a capacitor can be formed between the auxiliary electrode 16 and the sub-touch block 1331. In this way, whether a touch occurs can be determined by detecting the capacitance between the auxiliary electrode 16 and the sub-touch block 1331.

[0120] In one embodiment, referring to Figure 4 As shown, the display panel 10 further includes a chip 18 and a first touch line 19. The chip 18 is disposed on the substrate 11. One end of the first touch line 19 is electrically connected to the first touch portion 133, and the other end is electrically connected to the chip 18. The first touch line 19 is disposed on the same layer as the first conductive portion 131 and is electrically insulated.

[0121] In this way, the first conductive portion 131 and the first touch wiring 19 can be manufactured in the same process, that is, the first touch wiring 19 can be manufactured simultaneously while the isolation structure 13 is manufactured, thereby reducing masks and reducing manufacturing costs.

[0122] It is understandable that the display panel 10 has a display area 10a and a non-display area 10b, the chip 18 is disposed in the display area 10a, and both the display area 10a and the non-display area 10b are provided with a first touch line 19. The first touch line 19 and the chip 18 can be electrically connected through a second via connection structure.

[0123] It should be noted that, in the embodiment where the touch module only includes the first touch portion 133, each sub-touch block 1331 is connected to a corresponding first touch trace 19. In the embodiment where the touch module includes the first touch portion 133 and the second touch portion 14, each first sub-electrode corresponds to a first touch trace 19, and each second sub-electrode corresponds to a second touch trace.

[0124] In one embodiment, referring to Figure 2As shown, the isolation structure 13 includes a first blocking portion 132, which is disposed on a side of the first conductive portion 131 away from the substrate 11. The orthographic projection of the first blocking portion 132 on the substrate 11 is located outside the outer contour of the orthographic projection of the first conductive portion 131 on the substrate 11.

[0125] In this way, the first conductive part 131 and the first blocking part 132 can jointly constitute a first isolation wall. On the one hand, the first isolation wall can form an undercut structure with a "large top and small bottom", so that the isolation performance of the first isolation wall is better, thereby making the isolation performance of the isolation structure 13 better; on the other hand, by arranging the first conductive part 131 below the first blocking part 132, it is convenient to electrically connect the first conductive part 131 with other film layers.

[0126] In one embodiment, the first barrier portion 132 is constructed as an insulating film layer, so that the first barrier portion 132 can play an insulating role, thereby preventing the first conductive portion 131 from electrically contacting the film layer above the isolation structure 13 and causing a short circuit.

[0127] In one embodiment, the isolation structure 13 further includes a second blocking portion 134, and the second blocking portion 134 is disposed on a side of the first touch portion 133 away from the substrate 11. The second blocking portion 134 and the first blocking portion 132 are disposed on the same layer.

[0128] The second barrier 134 can prevent the first touch portion 133 from contacting other film layers and causing a short circuit. In addition, since the second barrier 134 and the first barrier 132 are in the same layer, the manufacturing process and difficulty of the display panel 10 will not be increased when manufacturing the second barrier 134.

[0129] In one embodiment, the orthographic projection of the second blocking portion 134 on the substrate 11 is located outside the outer contour of the orthographic projection of the first touch portion 133 on the substrate 11 .

[0130] In this way, the first touch portion 133 and the second blocking portion 134 can together form a second isolation wall. On the one hand, the second isolation wall can be formed into an undercut structure with a "large upper part and small lower part", so that the isolation performance of the second isolation wall is better; on the other hand, referring to Figure 3 As shown, not only the first isolation wall but also the second isolation wall mentioned above is arranged between the first sub-pixel 12a and the second sub-pixel 12b. In this way, a multi-layer partition is arranged between the first sub-pixel 12a and the second sub-pixel 12b. In this way, the cross-pixel leakage problem between the first sub-pixel 12a and the second sub-pixel 12b can be further improved.

[0131] It is also understandable that a first touch portion 133 and a second blocking portion 134 may be disposed between the first sub-pixel 12a and the third sub-pixel 12c, so that a second isolation wall is also disposed between the first sub-pixel 12a and the third sub-pixel 12c. This embodiment of the present application is not limited to this.

[0132] In a second aspect, an embodiment of the present application provides a display device 1, which includes the display panel 10 in any embodiment of the first aspect.

[0133] Specifically, the display device 1 can be a laptop computer, a mobile phone, a wireless device, a personal digital assistant (PDA), a handheld or portable computer, a GPS receiver / navigator, a camera, an MP4 video player, a camcorder, a game console, a watch, a clock, a calculator, a TV monitor, a flat-panel display, a computer monitor, a car display (e.g., an odometer display, etc.), a navigator, a cockpit controller and / or display, a display of a camera view (e.g., a display of a rearview camera in a vehicle), an electronic photo, an electronic billboard or sign, a projector, a wearable device, etc.

[0134] The display device 1 provided in the embodiment of the present application is provided with the first touch portion 133 and the first conductive portion 131 in the same layer, which is equivalent to making the first touch portion 133 on the isolation structure 13. When making the first conductive portion 131 of the isolation structure 13, the first touch portion 133 can be made simultaneously. Thus, compared with the display panel 10 using the On-Cell technology, on the one hand, the number of film layers of the touch module is reduced, thereby reducing the number of masks and the manufacturing cost; on the other hand, the thickness of the display panel 10 is reduced, which is conducive to making the display panel 10 thinner and lighter.

[0135] In the case of using “including”, “having”, and “comprising” described herein, another component may be added unless a clear limiting term such as “only”, “consisting of”, etc. is used. Unless mentioned otherwise, a term in the singular form may include a plural form and should not be understood as being one in number.

[0136] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0137] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A display panel, characterized in that: include: substrate; A light-emitting unit is disposed on one side of the substrate, and the light-emitting unit includes a first electrode, a light-emitting functional layer, and a second electrode stacked in a direction away from the substrate; An isolation structure is arranged on one side of the substrate, and adjacent light-emitting units are spaced apart by the isolation structure; The isolation structure includes a first touch portion and a first conductive portion, the first touch portion and the first conductive portion are arranged in the same layer and are electrically insulated; and the second electrode is electrically connected to the first conductive portion.

2. The display panel according to claim 1, characterized in that: There are a plurality of first conductive parts, an isolation gap is formed between adjacent first conductive parts, and the first touch part is disposed in the isolation gap; each first conductive part defines a first opening, and the light emitting unit is disposed in the first opening; Optionally, the orthographic projection of the first conductive portion on the substrate is a closed ring.

3. The display panel according to claim 2, characterized in that: The first touch portion includes a plurality of sub-touch blocks; the plurality of adjacent sub-touch blocks are arranged at intervals on the same side of the substrate; Optionally, each of the sub-touch blocks is at least disposed around at least a portion of the periphery of one of the first conductive portions; Optionally, the orthographic projection of the sub-touch blocks on the substrate is in a grid shape; Optionally, the plurality of sub-touch blocks are arranged in rows along a first direction, and are arranged in columns along a second direction intersecting the first direction.

4. The display panel according to claim 2, characterized in that: The display panel further includes: A first functional layer is disposed on a side of the isolation structure away from the substrate; A second touch portion, disposed on a side of the first functional layer away from the substrate; Wherein, one of the first touch control portion and the second touch control portion is configured as a transmitting electrode, and the other is configured as a receiving electrode; Optionally, the first touch control portion includes a plurality of first sub-electrodes arranged at intervals along a first direction, and the second touch control portion includes a plurality of second sub-electrodes arranged at intervals along a second direction; the first direction intersects with the second direction; Optionally, the orthographic projection of each of the first sub-electrodes on the substrate is in a grid shape; Optionally, the first functional layer is configured as an encapsulation layer.

5. The display panel according to claim 1, characterized in that: The display panel further includes: A second functional layer is disposed on a side of the isolation structure close to the substrate; An auxiliary electrode is disposed on a side of the second functional layer close to the substrate; the first conductive portion is electrically connected to the auxiliary electrode; Optionally, an orthographic projection of the auxiliary electrode on the substrate and an orthographic projection of the first conductive portion on the substrate have an overlapping area; the display panel further comprises a first via hole connection structure, and the first conductive portion is electrically connected to the auxiliary electrode through the first via hole connection structure; Optionally, the orthographic projection of the first conductive portion on the substrate covers the orthographic projection of the first via connection structure on the substrate; Optionally, the second functional layer is configured as a pixel defining layer, the pixel defining layer encloses a pixel opening, and the light emitting unit is disposed in the pixel opening.

6. The display panel according to claim 5, characterized in that: The orthographic projection of the auxiliary electrode on the substrate and the orthographic projection of the first touch portion on the substrate have an overlapping area; Optionally, the auxiliary electrode comprises a first part and a second part connected to each other, an orthographic projection of the first part on the substrate and an orthographic projection of the first conductive part on the substrate have an overlapping area, and the first part is connected to the first conductive part through the first via connection structure; An orthographic projection of the second portion on the substrate and an orthographic projection of the first touch portion on the substrate have an overlapping area.

7. The display panel according to claim 1, characterized in that: The display panel further includes: A chip is disposed on one side of the substrate; A first touch line, one end of which is electrically connected to the first touch portion, and the other end of which is electrically connected to the chip; the first touch line and the first conductive portion are disposed in the same layer and are electrically insulated.

8. The display panel according to claim 1, characterized in that: The isolation structure further includes a first blocking portion, which is disposed on a side of the first conductive portion away from the substrate; The orthographic projection of the first blocking portion on the substrate is located outside the outer contour of the orthographic projection of the first conductive portion on the substrate; Optionally, the first blocking portion is configured as an insulating film layer.

9. The display panel according to claim 8, characterized in that: The isolation structure further includes a second blocking portion, which is disposed on a side of the first touch portion away from the substrate; the second blocking portion is disposed on the same layer as the first blocking portion; Optionally, the orthographic projection of the second blocking portion on the substrate is located outside an outer contour of the orthographic projection of the first touch portion on the substrate.

10. A display device, characterized in that: The invention comprises a display panel as claimed in any one of claims 1 to 9.

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