Display panel, manufacturing method of display panel, and electronic apparatus

Abstract

To provide a display panel.SOLUTION: A display panel includes: a first display region; and a second display region at least partially surrounding the first display region. The display panel further includes: an array substrate; an isolation structure located on the array substrate side, formed with isolation openings and light transmitting openings being surrounded by the separation structure, and at least a portion of lighting transmitting openings being located in the first display region; a light emitting sub-pixel at least partially located in the isolation opening; and a touch layer located on a side of the isolation structure away from the array substrate. The touch layer includes a touch wiring, and a distribution density of the touch wiring in the first display region is less than the distribution density of the touch wiring in the second display region. In the embodiment of the present application, the distribution density of the touch lines in the first display area is set to be smaller than the distribution density of the touch lines in the second display area, thereby, a light transmittance of the first display area can be enhanced and the reliability of the display panel can be enhanced.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] This application relates to the field of display technologies, and more particularly, to a display panel, a method for manufacturing a display panel, and an electronic device.

Background Art

[0002] Flat panel display devices based on technologies such as Organic Light Emitting Diode (OLED) and Light Emitting Diode (LED) have advantages such as high image quality, low power consumption, thin body, and wide application range. Therefore, they are widely applied to various consumer electronic products such as mobile phones, televisions, notebook computers, and desktop computers, and have become the mainstream in display panels.

[0003] However, the reliability of display panels in related technologies is not sufficient.

Summary of the Invention

Problems to be Solved by the Invention

[0004] Embodiments of the present application provide a display panel, a method for manufacturing a display panel, and an electronic device.

Means for Solving the Problems

[0005] In order to solve the technical problems mentioned in the above background art, embodiments of the present application provide a display panel including a first display area and a second display area at least partially surrounding the first display area. The display panel includes: an array substrate, an isolation structure located on the side of the array substrate, where an isolation opening and a light-transmitting opening are formed by the isolation structure, and at least a part of the light-transmitting opening is located in the isolation structure in the first display area, a light-emitting sub-pixel at least partially located in the isolation opening, and a touch layer located on the side of the isolation structure away from the array substrate. The touch layer includes touch wirings, and the distribution density of the touch wirings in the first display region is smaller than the distribution density of the touch wirings in the second display region.

[0006] In some possible embodiments, the display panel further includes non-functional wirings located in the first display region. Preferably, the orthographic projection of the non-functional wirings on the array substrate does not overlap with the orthographic projection of the isolation openings and / or the light-transmitting openings on the array substrate. Preferably, the orthographic projection of the touch wirings on the array substrate does not overlap with the orthographic projection of the isolation openings and / or the light-transmitting openings on the array substrate. Preferably, the non-functional wirings are installed in the same layer as the touch wirings.

[0007] In some possible embodiments, the orthographic projection of the non-functional wirings on the array substrate does not overlap with the orthographic projection of the touch wirings on the array substrate. Preferably, the orthographic projection of the non-functional wirings on the array substrate is located between the orthographic projections of the adjacent light-emitting sub-pixels on the array substrate.

[0008] In some possible embodiments, the shape of the orthographic projection of the light-transmitting openings on the array substrate includes a rectangular shape or a circular shape. Preferably, the shape of the orthographic projection of the light-transmitting openings on the array substrate is rectangular. Preferably, when the shape of the orthographic projection of the light-transmitting openings on the array substrate is rectangular, the touch wirings extend along the longitudinal direction of the light-transmitting openings. Preferably, in the first display region, the isolation openings and the light-transmitting openings are installed at intervals. Preferably, the orthographic projection of the light-transmitting openings on the array substrate does not overlap with the orthographic projection of the light-emitting sub-pixels on the array substrate.

[0009] In some possible embodiments, the orthographic projection of the touch wiring on the array substrate is located between the orthographic projections of the adjacent light-emitting sub-pixels on the array substrate.

[0010] In some possible embodiments, the adjacent touch wirings in the touch layer are connected in a grid structure, and the orthographic projection of the isolation opening and / or the light-transmitting opening on the array substrate at least partially overlaps with the orthographic projection of the mesh of the grid structure on the array substrate.

[0011] In some possible embodiments, the orthographic projection of at least one of the isolation openings and / or at least one of the light-transmitting openings on the array substrate is located within the orthographic projection of one mesh of the grid structure on the array substrate. Preferably, the area of the orthographic projection of the mesh of the grid structure in the second display area on the array substrate is smaller than the area of the orthographic projection of the mesh of the grid structure in the first display area on the array substrate. Preferably, the ratio of the area of the orthographic projection of the mesh of the grid structure in the second display area on the array substrate to the area of the orthographic projection of the mesh of the grid structure in the first display area on the array substrate is 1 / 2 to 1 / 16. Preferably, the ratio of the area of the orthographic projection of the mesh of the grid structure in the second display area on the array substrate to the area of the orthographic projection of the mesh of the grid structure in the first display area on the array substrate is 1 / 2 or 1 / 4 or 1 / 8 or 1 / 16.

[0012] In some possible embodiments, the array substrate includes a base and signal wirings located on the base side, and the orthographic projection of the touch wiring on the base does not overlap with the orthographic projection of the signal wiring on the base. Preferably, the signal wiring includes data lines and / or scanning lines.

[0013] In some possible embodiments, at least a part of the light-emitting sub-pixel is located within the isolation opening, and includes a first electrode, a light-emitting part, and a second electrode that are sequentially stacked and installed along a direction away from the array substrate. The second electrode is electrically connected to the isolation structure. Preferably, the display panel further includes a first encapsulation layer located on a side of the second electrode away from the array substrate. The first encapsulation layer includes a plurality of encapsulation units, and a positive projection of the encapsulation unit on the array substrate covers a positive projection of the light-emitting sub-pixel on the array substrate. Preferably, the display panel further includes a second encapsulation layer located on a side of the first encapsulation layer away from the array substrate. Preferably, a side of the second encapsulation layer away from the array substrate has a flat surface. Preferably, the display panel further includes a third encapsulation layer located on a side of the second encapsulation layer away from the array substrate, and the touch layer is located on a side of the third encapsulation layer away from the array substrate.

[0014] In some possible embodiments, the display panel further includes a pixel defining layer located on the side of the array substrate. The isolation structure is located on a side of the pixel defining layer away from the array substrate. The pixel defining layer includes a plurality of pixel openings, and at least a part of the light-emitting sub-pixels are located within the pixel openings. A positive projection of the pixel opening on the array substrate is located within a positive projection of the isolation opening on the array substrate. Preferably, a positive projection of the isolation structure on the array substrate presents a mesh structure.

[0015] In some possible embodiments, the isolation structure includes a first isolation part and a second isolation part that are sequentially stacked and installed along a direction away from the array substrate. A positive projection of the first isolation part on the array substrate is located within a positive projection of the second isolation part on the array substrate.

[0016] In some possible embodiments, the second electrode of the light-emitting sub-pixel is electrically connected to the first isolation part, and / or the isolation structure further includes a third isolation part located on the side of the first isolation part facing the array substrate, and the second electrode of the light-emitting sub-pixel is electrically connected to the third isolation part. Preferably, the material of the third isolation part includes molybdenum metal, and / or the material of the first isolation part includes aluminum metal, and / or the material of the second isolation part includes titanium metal.

[0017] In some possible embodiments, the present application further provides a method for manufacturing a display panel including a first display area and a second display area at least partially surrounding the first display area, and the method includes: providing an array substrate; forming an isolation structure on the side of the array substrate, forming an isolation opening and a light-transmitting opening surrounded by the isolation structure, and at least a part of the light-transmitting opening is located in the first display area; forming at least a part of the light-emitting sub-pixels in the isolation opening; forming a touch layer on the side of the isolation structure away from the array substrate, wherein the touch layer includes touch wirings, and the distribution density of the touch wirings in the first display area is smaller than the distribution density of the touch wirings in the second display area.

[0018] In some possible embodiments, the step of forming a touch layer on the side of the isolation structure away from the array substrate includes: forming a touch layer and non-functional wirings on the side of the isolation structure away from the array substrate, the non-functional wirings are located in the first display area, the orthographic projection of the non-functional wirings on the array substrate does not overlap with the orthographic projection of the isolation opening and / or the light-transmitting opening on the array substrate, and the non-functional wirings are installed in the same layer as the touch wirings.

[0019] In some possible embodiments, the present application further provides an electronic device including the display panel described in the present application.

[0020] Compared with the prior art, the present application has the following beneficial effects.

[0021] In the display panel, the manufacturing method of the display panel, and the electronic device according to the present application, by setting the distribution density of the touch wiring in the first display area to be smaller than the distribution density of the touch wiring in the second display area, the light transmittance of the first display area can be improved, the mutual interference between the touch wiring and the signal wiring on the array substrate can be reduced, and the reliability of the display panel can be improved.

Brief Description of the Drawings

[0022] To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that need to be used in the embodiments will be briefly described below. The following drawings only show some embodiments of the present application and should not be regarded as limiting the scope. It should be understood that those skilled in the art can also obtain other related drawings according to these drawings without creative efforts.

[0023]

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Description of Reference Numerals

[0024] 1 Isolation pillar 2 Touch Wiring 3 Isolation Opening 4 Translucent Opening 5 Array Substrate 6 Pixel Definition Layer 7 Touch Layer 8 First Electrode 9 Light Emitting Section 10 Second Electrode 11 Light Emitting Sub-Pixel 12 Isolation Structure 121 First Isolation Portion 122 Second Isolation Portion 123 Third Isolation Portion 13 Pixel Opening 14 Non-Functional Wiring 15 Base 16 Signal Wiring 17 First Encapsulation Layer 171 Encapsulation Unit 18 Second Encapsulation Layer 19 Third Encapsulation Layer

Best Mode for Carrying Out the Invention

[0025] To make the objectives, technical solutions and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the drawings in the embodiments of this application. Obviously, the described embodiments are only some of the embodiments of this application, not all of them. Usually, the components of the embodiments of this application shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of this application for which protection is sought, but only shows selected embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of this application.

[0027] In the following drawings, the same reference numerals and alphabets indicate the same items. Once an item is defined in one drawing, it is not necessary to further define and explain it in subsequent drawings.

[0028] In the description of this application, the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the product of the invention is usually arranged when in use. It is only for the convenience of the description of this application and the simplification of the description, and does not indicate or imply that the specified device or element must have a specific orientation and be configured and operated in a specific orientation. Therefore, it should not be understood as limiting this application. Also, terms such as "first", "second", "third", etc. are only for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0029] Unless there is a contradiction, different features in the embodiments of this application may be combined with each other.

[0030] Referring to FIG. 1, the display panel in the related art includes a hole region AB and a display function region AA that at least partially surrounds the hole region AB. Here, components related to the lower part of the screen of the hole region AB can be installed. For example, an optical sensor such as a camera can be installed. Since the camera receives the light rays transmitted through the hole region AB to complete the imaging function, the light transmittance of the hole region AB has a great impact on the reliability of the components installed under the screen of the hole region AB.

[0031] Referring to FIGS. 2 to 3, the display panel in the related art further includes an array substrate 5, a spacer column 1 located on the side of the array substrate 5, and a touch layer 7 located on the side of the spacer column 1 away from the array substrate 5. The array substrate 5 includes a base. The spacer column 1 includes an isolation opening 3 and a light-transmitting opening 4. The isolation opening 3 is for restricting the position of the light-emitting sub-pixel 11 of the display panel. The light-transmitting opening 4 is mainly installed in the hole region. External light passes through the light-transmitting opening 4 and is received by the components in the hole region.

[0032] However, the installation densities of the touch wiring 2 in the display function region AA and the hole region AB of the touch layer 7 are the same, and the density of the touch wiring 2 is large. The touch wiring 2 blocks the position where external light reaches the components installed in the hole region AB. Therefore, in the related art, the light transmittance of the hole region AB is low, which affects the sensitivity of the components in the hole region AB and ultimately affects the reliability of the display panel in the related art.

[0033] In addition, the orthographic projection of some of the touch wiring 2 on the array substrate 5 is located within the orthographic projection of the hole region AB on the array substrate 5, and the orthographic projection of the base of some of the touch wiring 2 overlaps at least partially with the orthographic projection of the base of the signal wiring on the array substrate 5. Therefore, the signal wiring on the array substrate 5 and the touch wiring 2 of the touch layer 7 interfere with each other, affecting the display quality and touch accuracy of the display panel and ultimately affecting the reliability of the display panel in the related art.

[0034] In view of these, this embodiment provides a means to improve the reliability of the display panel. Hereinafter, the means according to this embodiment will be described in detail.

[0035] Referring to FIG. 4, this embodiment provides a display panel including a first display region AD and a second display region AC that at least partially surrounds the first display region AD. Referring to FIGS. 5 to 6, the display panel includes an array substrate 5, an isolation structure 12, a light-emitting sub-pixel 11, and a touch layer 7.

[0036] The array substrate 5 may include a base and a plurality of driving units located on the base side, and each driving unit may include one or more semiconductor switching devices. The semiconductor switching device may be formed by combining a plurality of film layers in the array substrate 5. For example, the semiconductor switching device may be a thin-film transistor formed by combining a plurality of film layers.

[0037] The isolation structure 12 is located on the side of the array substrate 5. The isolation opening 3 and the light-transmitting opening 4 are formed by being surrounded by the isolation structure 12, and at least a part of the light-transmitting opening 4 is located in the first display area AD.

[0038] Details such as the composition and manufacture of the isolation structure 12 are further described in International Patent Application PCT / CN2023 / 134518, Chinese Patent Applications 202310759370.2, 202310740412.8, 202310707209.0, and 202311346196.5 for reference. The isolation opening 3 is for restricting the position of the light-emitting sub-pixel 11, and at least a part of the light-emitting sub-pixel 11 is located in the isolation opening 3, that is, the orthographic projection of at least a part of the light-emitting sub-pixel 11 on the array substrate 5 is located within the orthographic projection of the isolation opening 3 on the array substrate 5.

[0039] The first display area AD is the hole area of the display panel, and components related to the lower part of the screen of the first display area AD can be installed. For example, an optical sensor or the like can be installed. The optical sensor receives the light rays transmitted through the first display area AD and completes the imaging function. The light-transmitting opening 4 is mainly installed in the first display area AD, and external light can be transmitted through the light-transmitting opening 4 and irradiate the optical sensor.

[0040] The touch layer 7 is located on the side away from the array substrate 5 of the isolation structure 12. The touch layer 7 includes touch wirings 2, and the distribution density of the touch wirings 2 in the first display area AD is smaller than the distribution density of the touch wirings 2 in the second display area AC. That is, within a unit area, the orthographic projection area of the touch wirings 2 on the array substrate 5 in the first display area AD is smaller than the orthographic projection area of the touch wirings 2 on the array substrate 5 in the second display area AC.

[0041] The touch wirings 2 are arranged as shown in FIG. 2 in the second display area AC, and the touch wirings 2 are arranged as shown in FIG. 5 in the first display area AD. The touch wirings 2 may include touch receiving wirings and touch transmitting wirings, and the touch receiving wirings and the touch transmitting wirings cooperate to realize the touch function of the display panel. In this embodiment, the distribution density of the touch wirings 2 in the first display area AD is smaller than the distribution density of the touch wirings 2 in the second display area AC. For example, if the distribution density of the touch wirings 2 in the second display area AC is basically the same as the distribution density of the touch wirings 2 in the display function area in the related art, the distribution density of the touch wirings 2 in the first display area AD is smaller than the distribution density of the touch wirings 2 in the hole area in the related art. Therefore, in this embodiment, by reducing the number of distributions of the touch wirings 2 in the first display area AD and differentially setting the distribution densities of the touch wirings 2 in the first display area AD and the second display area AC, it is possible to greatly reduce the blocking of the light rays reaching the components in the first display area AD by the touch wirings 2, greatly improve the light transmittance of the first display area AD, and improve the reliability of the components installed in the first display area AD.

[0042] Based on the above design, in this embodiment, by setting the distribution density of the touch wirings 2 in the first display area AD to be smaller than the distribution density of the touch wirings 2 in the second display area AC, the light transmittance of the first display area AD can be improved, the mutual interference between the touch wirings 2 and the signal wirings on the array substrate 5 can be reduced, and the reliability of the display panel can be improved.

[0043] In some possible embodiments, the display panel further includes a pixel defining layer 6, the pixel defining layer 6 is located on the side of the array substrate 5, the pixel defining layer 6 includes a plurality of pixel apertures 13, at least a part of the light-emitting sub-pixels 11 are located within the pixel apertures 13, and the orthographic projection of the pixel apertures 13 on the array substrate 5 is located within the orthographic projection of the isolation apertures 3 on the array substrate 5. The orthographic projection of the pixel apertures 13 on the array substrate 5 is located within the orthographic projection of the isolation apertures 3 on the array substrate 5.

[0044] The light-emitting sub-pixel 11 includes a first electrode 8, a light-emitting portion 9, and a second electrode 10, at least a part of which are located within the isolation aperture 3 and are sequentially stacked and installed along the direction away from the array substrate 5. The second electrode 10 is electrically connected to the isolation structure 12. The first electrode 8 is an anode, and the second electrode 10 is a cathode. The light-emitting sub-pixel 11 may include a red sub-pixel, a green sub-pixel, a blue sub-pixel, etc., and the light-emitting sub-pixel 11 may emit light.

[0045] In some possible embodiments, referring to FIGS. 7-8, the display panel further includes a non-functional wiring 14 located in the first display area AD.

[0046] By installing the non-functional wiring 14 in the first display area AD, the wiring density of the first display area AD is improved, and the density of the non-functional wiring 14 and the touch wiring 2 in the first display area AD as a whole is made substantially the same as the density of the touch wiring 2 in the second display area AC. For example, the density of the non-functional wiring 14 and the touch wiring 2 in the first display area AD as a whole is the same as the density of the touch wiring 2 in the second display area AC, or the density of the non-functional wiring 14 and the touch wiring 2 in the first display area AD as a whole is slightly smaller than the density of the touch wiring 2 in the second display area AC, or the density of the non-functional wiring 14 and the touch wiring 2 in the first display area AD as a whole is slightly larger than the density of the touch wiring 2 in the second display area AC. Thereby, the luminance displayed in the first display area AD and the second display area AC can be made substantially the same, and the display uniformity of the display panel can be improved.

[0047] Preferably, referring again to FIGS. 7 to 8, the orthographic projection of the non-functional wiring 14 on the array substrate 5 does not overlap with the orthographic projection of the isolation opening 3 and / or the light-transmitting opening 4 on the array substrate 5.

[0048] When the orthographic projection of the non-functional wiring 14 on the array substrate 5 overlaps with the orthographic projection of the isolation opening 3 on the array substrate 5, the non-functional wiring 14 in the overlapping portion shields the light emitted by the light-emitting sub-pixel 11 and affects the transmittance of the light emitted by the light-emitting sub-pixel 11.

[0049] When the orthographic projection of the non-functional wiring 14 on the array substrate 5 overlaps with the orthographic projection of the light-transmitting opening 4 on the array substrate 5, the non-functional wiring 14 in the overlapping portion shields the position where external light reaches the components in the first display area AD and affects the accuracy of the components.

[0050] In this embodiment, the orthographic projection of the non-functional wiring 14 on the array substrate 5 is installed so as not to overlap with the orthographic projection of the isolation opening 3 and / or the light-transmitting opening 4 on the array substrate 5. Thereby, not only can the transmittance of the light emitted by the light-emitting sub-pixel 11 be improved, but also the transmittance of the first display area AD can be improved.

[0051] Preferably, referring again to FIGS. 7 to 8, the orthographic projection of the touch wiring 2 on the array substrate 5 does not overlap with the orthographic projection of the isolation opening 3 and / or the light-transmitting opening 4 on the array substrate 5.

[0052] When the orthographic projection of the touch wiring 2 on the array substrate 5 overlaps with the orthographic projection of the isolation opening 3 on the array substrate 5, the touch wiring 2 in the overlapping portion shields the light emitted by the light-emitting sub-pixel 11 and affects the transmittance of the light emitted by the light-emitting sub-pixel 11.

[0053] When the orthographic projection of the touch wiring 2 on the array substrate 5 overlaps with the orthographic projection of the light-transmitting opening 4 on the array substrate 5, the touch wiring 2 in the overlapping portion blocks the position where external light reaches the components in the first display area AD, thus affecting the accuracy of the components. Also, since there is no shielding by the isolation structure 12 or the first electrode 8 between the touch wiring 2 and the signal wiring 16 of the array substrate 5, the touch wiring 2 and the signal wiring 16 of the array substrate 5 interfere with each other, reducing the display quality and touch accuracy of the display panel.

[0054] In this embodiment, the orthographic projection of the touch wiring 2 on the array substrate 5 is arranged so as not to overlap with the orthographic projection of the isolation opening 3 and / or the light-transmitting opening 4 on the array substrate 5. Thereby, not only can the transmittance of the light emitted by the light-emitting sub-pixel 11 be improved, but also the transmittance of the first display area AD can be improved, and the degree of mutual interference between the touch wiring 2 and the signal wiring 16 of the array substrate 5 can be reduced.

[0055] Preferably, referring to FIGS. 7 to 8 again, the non-functional wiring 14 is installed in the same layer as the touch wiring 2. When the touch layer 7 is installed, the touch wiring 2 and the non-functional wiring 14 can be installed simultaneously, eliminating the need to add a process for installing the non-functional wiring 14 and reducing the cost of installing the non-functional wiring 14.

[0056] In some possible embodiments, referring to FIGS. 7 to 8 again, the orthographic projection of the non-functional wiring 14 on the array substrate 5 does not overlap with the orthographic projection of the touch wiring 2 on the array substrate 5, the non-functional wiring 14 and the touch wiring 2 are not electrically connected, and no signal is applied to the non-functional wiring 14. Therefore, the non-functional wiring 14 does not interfere with the signal wiring 16 on the array substrate 5, and the display quality of the display panel can be improved.

[0057] Preferably, the orthographic projection of the non-functional wiring 14 on the array substrate 5 is located between the orthographic projections of the adjacent light-emitting sub-pixels 11 on the array substrate 5. By installing the non-functional wiring 14 between the adjacent light-emitting sub-pixels 11, a large light-emitting viewing angle can be given to the light-emitting sub-pixels 11, so the influence of the non-functional wiring 14 on the overall light transmittance and color shift of the display panel is small.

[0058] In some possible embodiments, referring to FIG. 7 again, the orthographic projection shape of the light-transmitting opening 4 on the array substrate 5 includes a rectangular shape or a circular shape. For example, as shown in FIG. 7, the orthographic projection shape of the light-transmitting opening 4 on the array substrate 5 includes a rectangular shape, and the orthographic projection shape of the light-transmitting opening 4 on the array substrate 5 may be set to other shapes according to the actual situation, and is not limited to the rectangular or circular shape according to this embodiment.

[0059] Preferably, referring to FIG. 7 again, the orthographic projection shape of the light-transmitting opening 4 on the array substrate 5 is rectangular. When the orthographic projection shape of the light-transmitting opening 4 on the array substrate 5 is rectangular, the touch wiring 2 extends along the longitudinal direction of the light-transmitting opening 4. By installing the touch wiring 2 as much as possible along the longitudinal direction of the light-transmitting opening 4, the distance between the touch wiring 2 and the light-transmitting opening 4 can be increased, and the degree of mutual influence between the touch wiring 2 and the signal wiring 16 on the array substrate 5 can be further reduced.

[0060] Preferably, referring to FIG. 7 again, in the first display area AD, the isolation opening 3 and the light-transmitting opening 4 are installed at intervals. In this way, as many light-transmitting openings 4 as possible can be installed in the first display area AD, and the light transmittance of the first display area AD can be further improved.

[0061] Preferably, referring to FIGS. 7 to 8 again, the orthographic projection of the light-transmitting opening 4 on the array substrate 5 does not overlap with the orthographic projection of the light-emitting sub-pixel 11 on the array substrate 5.

[0062] The orthographic projection of the light-transmitting opening 4 on the array substrate 5 is arranged so as not to overlap with the orthographic projection of the light-emitting sub-pixel 11 on the array substrate 5. Thereby, external light is not blocked by the light-emitting sub-pixel 11, and the external light can smoothly transmit through the light-transmitting opening 4.

[0063] In some possible embodiments, referring back to FIGS. 7 to 8, the orthographic projection of the touch wiring 2 on the array substrate 5 is located between the orthographic projections of the adjacent light-emitting sub-pixels 11 on the array substrate 5. By arranging the touch wiring 2 between the adjacent light-emitting sub-pixels 11, the light-emitting sub-pixels 11 can be provided with a large light-emitting viewing angle. Therefore, the influence of the touch wiring 2 on the overall light transmittance and color shift of the display panel is small.

[0064] In some possible embodiments, referring back to FIG. 7, adjacent touch wirings 2 in the touch layer 7 are connected to form a grid-like structure, and the orthographic projection of the isolation opening 3 and / or the light-transmitting opening 4 on the array substrate 5 at least partially overlaps with the orthographic projection of the mesh of the grid-like structure on the array substrate 5.

[0065] The spaces between the touch wirings 2 are connected to each other to form a grid-like structure. The grid-like structure includes a plurality of meshes. The orthographic projection of the mesh on the array substrate 5 is arranged to at least partially overlap with the orthographic projection of the isolation opening 3 and / or the light-transmitting opening 4 on the array substrate 5, so that the light transmittance of the isolation opening 3 and / or the light-transmitting opening 4 can be increased.

[0066] In some possible embodiments, referring to FIG. 7 again, the orthographic projection of at least one isolation opening 3 and / or at least one light-transmitting opening 4 on the array substrate 5 is located within the orthographic projection of one mesh of the grid structure on the array substrate 5. Since the orthographic projection area of the mesh on the array substrate 5 is larger than the orthographic projection area of the isolation opening 3 and / or the light-transmitting opening 4 on the array substrate 5, the orthographic projection of one mesh on the array substrate 5 can cover the orthographic projection of at least one isolation opening 3 and / or at least one light-transmitting opening 4 on the array substrate 5. In this way, according to the isolation opening 3 and / or the light-transmitting opening 4, the density of the grid structure of the touch wiring 2 can be reasonably set.

[0067] Preferably, referring to FIG. 7 again, the area of the orthographic projection of the grid structure of the mesh on the array substrate 5 in the second display area AC is smaller than the area of the orthographic projection of the grid structure of the mesh on the array substrate 5 in the first display area AD. In this way, when the arrangement of the touch wiring 2 in the first display area AD and the second display area AC is basically the same, by setting the mesh density of the grid structure in the second display area AC to be smaller than the mesh density of the grid structure in the first display area AD, the light transmittance of the first display area AD can be improved.

[0068] Preferably, the ratio of the area of the orthographic projection of the grid structure of the mesh on the array substrate 5 in the second display area AC to the area of the orthographic projection of the grid structure of the mesh on the array substrate 5 in the first display area AD is 1 / 2 to 1 / 16, and for example, it may be 1 / 2, 1 / 4, 1 / 8 or 1 / 16, etc. By reasonably setting the ratio of the mesh density of the grid structure in the second display area AC to that in the first display area AD, not only can the light transmittance of the first display area AD be increased, but also the difference in the density of the touch wiring 2 between the first display area AD and the second display area AC can be reduced as much as possible, and the display uniformity of the display panel can be improved.

[0069] For example, in some embodiments, referring back to FIG. 5, the ratio of the area of the orthographic projection of the mesh of the lattice structure of the second display region AC on the array substrate 5 to the area of the orthographic projection of the mesh of the lattice structure of the first display region AD on the array substrate 5 is 1 / 2.

[0070] In other embodiments, referring to FIGS. 9 - 10, the ratio of the area of the orthographic projection of the mesh of the lattice structure of the second display region AC on the array substrate 5 to the area of the orthographic projection of the mesh of the lattice structure of the first display region AD on the array substrate 5 is 1 / 4.

[0071] In some possible embodiments, referring to FIG. 11, the array substrate 5 includes a base 15 and signal wirings 16 located on the side of the base 15, and the orthographic projection of the touch wiring 2 on the base 15 does not overlap with the orthographic projection of the signal wiring 16 on the base 15.

[0072] The array substrate 5 includes data lines and / or scan lines, etc. The voltage jumps of these signal wirings 16 affect the touch accuracy of the touch wiring 2. Therefore, by setting the orthographic projection of the touch wiring 2 on the base 15 not to overlap with the orthographic projection of the signal wiring 16 on the base 15, the influence of the signal wiring 16 on the touch wiring 2 can be reduced.

[0073] In some possible embodiments, referring to FIG. 12, the display panel further includes a first encapsulation layer 17 located on the side of the array substrate 5 away from the second electrode 10. The first encapsulation layer 17 includes a plurality of encapsulation units 171, and the orthographic projection of the encapsulation unit 171 on the array substrate 5 covers the orthographic projection of the light-emitting sub-pixel 11 on the array substrate 5.

[0074] The first encapsulation layer 17 is an inorganic encapsulation layer. The isolation structure 12 includes a side close to the array substrate 5, a side away from the array substrate 5, and side surfaces. Each independent encapsulation unit 171 extends from the sidewall of the isolation structure 12 to the side away from the array substrate 5 of the isolation structure 12, and the encapsulation unit 171 is in contact with both the sidewall of the isolation structure 12 and the surface away from the array substrate 5 of the isolation structure 12. There is a gap between each encapsulation unit 171 on the side away from the array substrate 5 of the isolation structure 12. In this way, the independent encapsulation effect on the pixels can be significantly improved, and the optical performance of the display panel can be further optimized.

[0075] Preferably, as shown in FIG. 13, the display panel further includes a second encapsulation layer 18 located on the side away from the array substrate 5 of the first encapsulation layer 17, and the side away from the array substrate 5 of the second encapsulation layer 18 has a flat surface.

[0076] The second encapsulation layer 18 is an organic encapsulation layer. The second encapsulation layer 18 may be formed by inkjet printing. The second encapsulation layer 18 can fill the side away from the array substrate 5 of the isolation structure 12, the isolation openings 3, the light-transmitting openings 4, etc., and can provide a better protection effect on the light-emitting sub-pixels 11, etc.

[0077] Preferably, as shown in FIG. 14, the display panel further includes a third encapsulation layer 19 located on the side away from the array substrate 5 of the second encapsulation layer 18, and the touch layer 7 is located on the side away from the array substrate 5 of the third encapsulation layer 19. The third encapsulation layer 19 is an inorganic encapsulation layer, and the third encapsulation layer 19 can further improve the encapsulation effect on the light-emitting sub-pixels 11, etc.

[0078] Preferably, as shown in FIG. 15, the orthographic projection of the isolation structure 12 on the array substrate 5 presents a reticular structure. In this way, the isolation structure 12 can better block the second electrode layer and form a plurality of second electrodes 10 that are spaced apart and located in the isolation openings 3 respectively.

[0079] In some possible embodiments, the isolation structure 12 includes a first isolation portion 121 and a second isolation portion 122 which are sequentially stacked and provided along a direction away from the array substrate 5. The orthographic projection of the first isolation portion 121 on the array substrate 5 is located within the orthographic projection of the second isolation portion 122 on the array substrate 5.

[0080] Since the second isolation portion 122 is located on the side away from the array substrate 5 of the first isolation portion 121 and the lateral width of the second isolation portion 122 is larger than that of the first isolation portion 121, the second isolation portion 122 cuts off the light-emitting portion 9 and the second electrode layer in the isolation structure 12. The isolation structure 12 formed by the first isolation portion 121 and the second isolation portion 122 can isolate each light-emitting sub-pixel 11.

[0081] In some possible embodiments, referring to FIG. 14 again, the second electrode 10 of the light-emitting sub-pixel 11 is electrically connected to the first isolation portion 121. Referring to FIG. 16, and / or the isolation structure 12 further includes a third isolation portion 123 located on the side facing the array substrate 5 of the first isolation portion 121. The second electrode 10 of the light-emitting sub-pixel 11 is electrically connected to the third isolation portion 123. The material of the third isolation portion 123 includes molybdenum metal, and / or the material of the first isolation portion 121 includes aluminum metal, and / or the material of the second isolation portion 122 includes titanium metal.

[0082] At least a part of the second electrodes 10 extends from within the pixel opening 13 to the side away from the array substrate 5 of the pixel defining layer 6 and is electrically contacted with the third isolation portion 123 or the first isolation portion 121 in the isolation structure 12. The third isolation portion 123 or the first isolation portion 121 of the isolation structure 12 is connected to the adjacent second electrodes 10, or connects the second electrodes 10 to other circuits, so that the isolation structure 12 cuts off the second electrode layer to form the second electrodes 10, and it becomes easier to electrically connect the second electrodes 10.

[0083] As described above, in the present application, by setting the distribution density of the touch wiring 2 in the first display area AD to be smaller than the distribution density of the touch wiring 2 in the second display area AC, the light transmittance of the first display area AD can be improved, the mutual interference between the touch wiring 2 and the signal wiring on the array substrate 5 can be reduced, and the reliability of the display panel can be improved.

[0084] In some possible embodiments, referring to FIG. 17, the present application further provides a method for manufacturing a display panel including a first display area AD and a second display area AC at least partially surrounding the first display area AD. The method includes the following.

[0085] In S10, an array substrate 5 is provided.

[0086] The array substrate 5 may include a base and a plurality of driving units located on the base side, and each driving unit may include one or more semiconductor switching devices. The semiconductor switching device may be formed by combining a plurality of film layers on the array substrate 5. For example, the semiconductor switching device may be a thin film transistor formed by combining a plurality of film layers.

[0087] In S11, an isolation structure 12 is formed on the side of the array substrate 5. An isolation opening 3 and a light-transmitting opening 4 are formed surrounded by the isolation structure 12, and at least a part of the light-transmitting opening 4 is located in the first display area AD.

[0088] As shown in FIG. 18, a first electrode layer is formed on the side of the array substrate 5 away from the array substrate 5. The first electrode layer includes a plurality of first electrodes 8 arranged at intervals, and the first electrodes 8 are anodes.

[0089] Referring to FIG. 19, a pixel defining layer 6 is formed on the side of the first electrode layer away from the array substrate 5. The pixel defining layer 6 includes a plurality of pixel openings 13.

[0090] Referring to FIG. 20, an isolation structure 12 is formed on the side of the pixel defining layer 6 away from the array substrate 5. An isolation opening 3 and a light-transmitting opening 4 are formed and surrounded by the isolation structure 12. At least a part of the light-transmitting openings 4 is located in the first display area AD. The isolation opening 3 is for positioning the light-emitting sub-pixels 11. At least a part of the light-emitting sub-pixels 11 is located within the isolation opening 3. That is, the orthographic projection of at least a part of the light-emitting sub-pixels 11 on the array substrate 5 is located within the orthographic projection of the isolation opening 3 on the array substrate 5, and the orthographic projection of the pixel opening 13 on the array substrate 5 is located within the orthographic projection of the isolation opening 3 on the array substrate 5.

[0091] In S12, at least a part of the light-emitting sub-pixels 11 is formed within the isolation opening 3.

[0092] As shown in FIG. 21, within the isolation opening 3, a light-emitting layer and a second electrode layer are sequentially stacked along the direction away from the array substrate 5. A plurality of light-emitting portions 9 are formed where the light-emitting layer is blocked by the isolation structure 12 and arranged at intervals. A plurality of second electrodes 10 are formed where the second electrode layer is blocked by the isolation structure 12 and arranged at intervals. Both the light-emitting layer and the second electrode 10 are located within the pixel opening 13. The second electrode 10 is a cathode. At least a part of the second electrodes 10 extends from within the pixel opening 13 to the side away from the array substrate 5 of the pixel defining layer 6 and is in electrical contact with the isolation structure 12. The first electrode 8, the light-emitting portion 9, and the second electrode 10 form the light-emitting sub-pixel 11. The light-emitting sub-pixel 11 may include a red sub-pixel, a green sub-pixel, a blue sub-pixel, etc. The light-emitting sub-pixel 11 can emit light.

[0093] In S13, a touch layer 7 is formed on the side of the isolation structure 12 away from the array substrate 5. The touch layer 7 includes touch wirings 2. The distribution density of the touch wirings 2 in the first display area AD is smaller than the distribution density of the touch wirings 2 in the second display area AC.

[0094] Referring back to FIG. 6, a touch layer 7 is formed on the side of the isolation structure 12 away from the array substrate 5. The first display area AD is the hole area of the display panel, and components related to the area below the screen of the first display area AD can be installed. For example, an optical sensor or the like can be installed. The optical sensor receives the light rays transmitted through the first display area AD to complete the imaging function. The light-transmitting opening 4 is mainly installed in the first display area AD, and external light can pass through the light-transmitting opening 4 and irradiate the optical sensor.

[0095] The touch layer 7 is located on the side of the isolation structure 12 away from the array substrate 5. The touch layer 7 includes touch wirings 2, and the distribution density of the touch wirings 2 in the first display area AD is smaller than the distribution density of the touch wirings 2 in the second display area AC.

[0096] The touch wirings 2 may include touch receiving wirings and touch transmitting wirings, and the touch receiving wirings and the touch transmitting wirings cooperate to realize the touch function of the display panel. In this embodiment, the distribution density of the touch wirings 2 in the first display area AD is smaller than the distribution density of the touch wirings 2 in the second display area AC. For example, if the distribution density of the touch wirings 2 in the second display area AC is approximately the same as the distribution density of the touch wirings 2 in the display function area in the related art, then the distribution density of the touch wirings 2 in the first display area AD is smaller than the distribution density of the touch wirings 2 in the hole area in the related art. Therefore, in this embodiment, by reducing the number of distributions of the touch wirings 2 in the first display area AD and differentiating the distribution densities of the touch wirings 2 in the first display area AD and the second display area AC, it is possible to significantly reduce the blocking of the light rays that the touch wirings 2 reach the components in the first display area AD, significantly improve the light transmittance of the first display area AD, and improve the reliability of the components installed in the first display area AD.

[0097] In some possible embodiments, referring to FIG. 22, the step of forming the touch layer 7 on the side of the isolation structure 12 away from the array substrate 5 includes the following steps.

[0098] In S131, a touch layer 7 and a non-functional wiring 14 are formed on a side of the isolation structure 12 away from the array substrate 5. The non-functional wiring 14 is located in the first display area AD. A front projection of the non-functional wiring 14 on the array substrate 5 does not overlap with a front projection of the isolation opening 3 and / or the light-transmitting opening 4 on the array substrate 5. The non-functional wiring 14 is installed in the same layer as the touch wiring 2.

[0099] Referring to FIG. 8 again, by forming the touch layer 7 and the non-functional wiring 14 on a side of the isolation structure 12 away from the array substrate 5 and installing the non-functional wiring 14 in the first display area AD, the wiring density of the first display area AD is improved, and the overall density of the non-functional wiring 14 and the touch wiring 2 in the first display area AD is made substantially the same as the density of the touch wiring 2 in the second display area AC. For example, the overall density of the non-functional wiring 14 and the touch wiring 2 in the first display area AD is made the same as the density of the touch wiring 2 in the second display area AC, or the overall density of the non-functional wiring 14 and the touch wiring 2 in the first display area AD is made slightly smaller than the density of the touch wiring 2 in the second display area AC, or the overall density of the non-functional wiring 14 and the touch wiring 2 in the first display area AD is made slightly larger than the density of the touch wiring 2 in the second display area AC. Thereby, the luminance displayed in the first display area AD and the second display area AC can be made substantially the same, and the display uniformity of the display panel can be improved.

[0100] By installing the front projection of the non-functional wiring 14 on the array substrate 5 so as not to overlap with the front projection of the isolation opening 3 and / or the light-transmitting opening 4 on the array substrate 5, not only the transmittance of the light emitted by the light-emitting sub-pixel 11 can be increased, but also the transmittance of the first display area AD can be increased.

[0101] In this embodiment, when installing the touch layer 7, the touch wiring 2 and the non-functional wiring 14 can be installed simultaneously. Thereby, it is not necessary to increase the process of installing the non-functional wiring 14, and the cost of installing the non-functional wiring 14 can be reduced.

[0102] In some possible embodiments, the present application further provides an electronic device including the display panel in the present application. The electronic device may include devices having image processing capabilities, such as servers, personal computers, laptops, etc. Since the electronic device includes the display panel in the present application, the reliability of the electronic device is higher.

[0103] The technical features of the above embodiments can be arbitrarily combined. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be regarded as within the scope described in this specification.

[0104] The above embodiments merely illustrate some embodiments of the present application. The description is more specific and detailed, but does not limit the scope of the claims. Those skilled in the art can make some modifications and improvements without departing from the idea of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application is based on the scope of the claims.

Claims

1. A display panel including a first display area and a second display area at least partially surrounding the first display area, an array substrate, an isolation structure located on the side of the array substrate, wherein an isolation opening and a light-transmitting opening are formed by the isolation structure, and at least a part of the light-transmitting opening is located in the isolation structure where the first display area is located, a light-emitting sub-pixel at least a part of which is located in the isolation opening, and a touch layer located on the side of the isolation structure away from the array substrate, wherein the touch layer includes touch wirings, and the distribution density of the touch wirings in the first display area is smaller than the distribution density of the touch wirings in the second display area, characterized in that it is such a display panel.

2. Further including non-functional wirings located in the first display area, wherein the orthographic projection of the non-functional wirings on the array substrate does not overlap with the orthographic projection of the isolation opening and / or the light-transmitting opening on the array substrate, characterized in that it is the display panel according to Claim 1.

3. The orthographic projection of the touch wirings on the array substrate does not overlap with the orthographic projection of the isolation opening and / or the light-transmitting opening on the array substrate, characterized in that it is the display panel according to Claim 1.

4. The orthographic projection of the non-functional wirings on the array substrate does not overlap with the orthographic projection of the touch wirings on the array substrate, characterized in that it is the display panel according to Claim 2.

5. The orthographic projection shape of the light-transmitting opening on the array substrate includes a rectangular shape or a circular shape, and the orthographic projection of the light-transmitting opening on the array substrate does not overlap with the orthographic projection of the light-emitting sub-pixel on the array substrate, characterized in that it is the display panel according to Claim 1.

6. The isolation opening and the light-transmitting opening are installed at intervals, characterized in that it is the display panel according to Claim 1.

7. The orthographic projection of the touch wirings on the array substrate is located between the orthographic projections of adjacent light-emitting sub-pixels on the array substrate, characterized in that it is the display panel according to Claim 1.

8. The adjacent touch wirings in the touch layer are connected in a grid structure, and the orthographic projection of the isolation opening and / or the light-transmitting opening on the array substrate at least partially overlaps with the orthographic projection of the mesh of the grid structure on the array substrate, characterized in that it is the display panel according to Claim 1.

9. The orthographic projection of at least one of the isolation openings and / or at least one of the light-transmitting openings on the array substrate is located within the orthographic projection of one mesh of the lattice structure on the array substrate. The display panel according to claim 8, characterized in that.

10. The area of the orthographic projection of the mesh of the lattice structure in the second display region on the array substrate is smaller than the area of the orthographic projection of the mesh of the lattice structure in the first display region on the array substrate. The display panel according to claim 8, characterized in that.

11. The array substrate includes a base and signal wirings located on the base side, and the orthographic projection of the touch wiring on the base does not overlap with the orthographic projection of the signal wiring on the base. The signal wiring includes data lines and / or scanning lines. The display panel according to claim 1, characterized in that.

12. The light-emitting sub-pixel includes a first electrode, a light-emitting portion, and a second electrode, at least a part of which is located within the isolation opening and is sequentially stacked and installed along the direction away from the array substrate, and the second electrode is electrically connected to the isolation structure. The display panel according to any one of claims 1 to 11, characterized in that.

13. The display panel further includes a first encapsulation layer located on the side of the second electrode away from the array substrate. The first encapsulation layer includes a plurality of encapsulation units, and the orthographic projection of the encapsulation unit on the array substrate covers the orthographic projection of the light-emitting sub-pixel on the array substrate. The display panel according to claim 12, characterized in that.

14. The display panel further includes a second encapsulation layer located on the side of the first encapsulation layer away from the array substrate. The display panel further includes a third encapsulation layer located on the side of the second encapsulation layer away from the array substrate, and the touch layer is located on the side of the third encapsulation layer away from the array substrate. The display panel according to claim 13, characterized in that.

15. The display panel further includes a pixel definition layer located on the side of the array substrate. The isolation structure is located on the side of the pixel definition layer away from the array substrate. The pixel definition layer includes a plurality of pixel openings, at least a part of the light-emitting sub-pixels are located within the pixel openings, and the orthographic projection of the pixel opening on the array substrate is located within the orthographic projection of the isolation opening on the array substrate. The display panel according to any one of claims 1 to 11, characterized in that.

16. The isolation structure includes a first isolation part and a second isolation part that are sequentially stacked and installed along a direction away from the array substrate, and the orthographic projection of the first isolation part on the array substrate is located within the orthographic projection of the second isolation part on the array substrate. The display panel according to any one of claims 1 to 11, characterized in that.

17. The second electrode of the light-emitting sub-pixel is electrically connected to the first isolation part, and / or the isolation structure further includes a third isolation part located on the side of the first isolation part facing the array substrate, and the second electrode of the light-emitting sub-pixel is electrically connected to the third isolation part. The display panel according to claim 16, characterized in that.

18. A display panel including a first display area and a second display area at least partially surrounding the first display area, An array substrate, A pixel definition layer located on the side of the array substrate, An isolation structure located on the side of the pixel definition layer away from the array substrate, wherein an isolation opening and a light-transmitting opening are formed by the isolation structure, and at least some of the light-transmitting openings are located in the isolation structure in the first display area, A light-emitting sub-pixel at least partially located within the isolation opening, A first encapsulation layer located on the side of the light-emitting sub-pixel away from the array substrate, the first encapsulation layer including a plurality of encapsulation units, and the orthographic projection of the encapsulation unit on the array substrate covers the orthographic projection of the light-emitting sub-pixel on the array substrate, A second encapsulation layer located on the side of the first encapsulation layer away from the array substrate, the second encapsulation layer fills the light-transmitting opening and contacts the side of the pixel definition layer away from the array substrate. A display panel, characterized in that.

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