Display panel and display device

Abstract

The application discloses a display panel and a display device. The display panel comprises a substrate, a driving layer arranged on the substrate, wherein the driving layer comprises a plurality of driving units; a first electrode layer arranged on a side of the driving layer away from the substrate, wherein the first electrode layer comprises a plurality of array-distributed pixel electrodes, each driving unit is electrically connected to at least one pixel electrode, and the orthographic projection of at least part of the driving units on the substrate is located within the orthographic projection of the pixel electrodes on the substrate; and a first signal line layer arranged between the first electrode layer and the substrate, wherein the first signal line layer comprises a plurality of first transparent conductive lines, and at least two driving units are connected to each other through the first transparent conductive lines. At least part of the area of the display panel is transparent and displayable, and the under-screen integration of a photosensitive component is facilitated.

Description

[0001] Cross-references to related applications

[0002] This application claims priority to Chinese Patent Application No. 202110349005.5, entitled “Display Panel and Display Device”, filed on March 31, 2021, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This invention relates to the field of displays, and more specifically to a display panel and a display device. Background Technology

[0004] With the rapid development of electronic devices, users have increasingly higher requirements for screen ratio, making full-screen displays of electronic devices receive more and more attention from the industry.

[0005] Traditional electronic devices such as mobile phones and tablets need to integrate components such as front-facing cameras, earpieces, and infrared sensors. In existing technology, notches or holes are made in the display screen, allowing external light to enter the photosensitive element located beneath the screen. However, these electronic devices are not truly full-screen displays and cannot display images across the entire screen area; for example, the area corresponding to the front-facing camera cannot display an image. Summary of the Invention

[0006] This invention provides a display panel and a display device, which enables at least a portion of the display panel to be light-transmitting and displayable, facilitating the under-screen integration of photosensitive components.

[0007] An embodiment of the first aspect of the present invention provides a display panel, the display panel comprising: a substrate; a driving layer disposed on the substrate, the driving layer including a plurality of driving units; a first electrode layer disposed on the side of the driving layer away from the substrate, the first electrode layer including a plurality of arrayed pixel electrodes, each driving unit being electrically connected to at least one pixel electrode, and at least a portion of the driving units having orthographic projections on the substrate within the orthographic projections of the pixel electrodes on the substrate; and a first signal line layer disposed between the first electrode layer and the substrate, the first signal line layer including a plurality of first transparent wires, at least two driving units being interconnected through the first transparent wires.

[0008] According to an embodiment of the first aspect of the present invention, the display panel includes a plurality of pixel units arranged in an array, each pixel unit including two or more sub-pixels, each pixel electrode being connected to each sub-pixel, and at least one pixel unit having a driving unit corresponding to a plurality of sub-pixels forming a set of repeating driving groups, the two sets of repeating driving groups being interconnected by a first transparent wire.

[0009] According to any of the foregoing embodiments of the first aspect of the present invention, the driving unit is electrically connected to two or more pixel electrodes so that the driving unit can drive two or more sub-pixels to be displayed.

[0010] According to any of the foregoing embodiments of the first aspect of the present invention, the display panel further includes: a second signal line layer, located on the side of the first display area facing the first electrode layer of the driving layer, the second signal line layer including a plurality of second transparent wires;

[0011] Two or more pixel electrodes are connected to the same driving unit, and the two or more pixel electrodes are interconnected to the driving unit through a second transparent wire.

[0012] According to any of the foregoing embodiments of the first aspect of the present invention, the second signal line layer is located on the side of the first signal line layer that is away from the substrate.

[0013] According to any of the foregoing embodiments of the first aspect of the present invention, the driving layer includes a first metal layer and a second metal layer disposed sequentially in the direction away from the substrate, and a first signal line layer is located between the first metal layer and the second metal layer, or the first signal line layer is located on the side of the second metal layer away from the substrate layer.

[0014] According to any of the foregoing embodiments of the first aspect of the present invention, the driving layer comprises a first metal layer, a second metal layer and a third metal layer disposed sequentially in the direction away from the substrate, and the first signal line layer is located between the first metal layer and the second metal layer, or the first signal line layer is located between the second metal layer and the third metal layer, or the first signal line layer is located on the side of the third metal layer away from the second metal layer.

[0015] According to any of the foregoing embodiments of the first aspect of the present invention, the display panel further includes a planarization layer, the planarization layer being located between the first electrode layer and the third metal layer, the first signal line layer being located on the side of the planarization layer facing the driving layer, and the second signal line layer being located on the side of the planarization layer facing the first electrode layer.

[0016] According to any of the foregoing embodiments of the first aspect of the present invention, the second signal line layer and the first electrode layer are disposed in the same layer.

[0017] According to any of the foregoing embodiments of the first aspect of the present invention, the second signal line layer further includes a third transparent conductor for connecting two adjacent sets of repeating drive groups.

[0018] According to any of the foregoing embodiments of the first aspect of the present invention, the first transparent conductor is part of one of the data line and the scan line, and the third transparent conductor is part of the other of the data line and the scan line.

[0019] According to any of the foregoing embodiments of the first aspect of the present invention, the first transparent wire includes an indium tin oxide layer or an indium zinc oxide layer.

[0020] According to any of the foregoing embodiments of the first aspect of the present invention, the second transparent wire includes an indium tin oxide layer or an indium zinc oxide layer.

[0021] According to any of the foregoing embodiments of the first aspect of the present invention, the third transparent wire includes an indium tin oxide layer or an indium zinc oxide layer.

[0022] According to any of the foregoing embodiments of the first aspect of the present invention, the repeating drive group includes three or more drive units, the three or more drive units include a first drive block and a second drive block, the first drive block includes at least two drive units, the second drive block includes at least one drive unit other than the first drive block, the spacing between two adjacent drive units in the first drive block is smaller than the spacing between the first drive block and the second drive block, and the first drive block and the second drive block are interconnected by a first transparent wire.

[0023] According to any of the foregoing embodiments of the first aspect of the present invention, at least a portion of the orthogonal projection of the first driving block on the substrate lies within the orthogonal projection of one of the plurality of first pixel electrodes on the substrate; at least a portion of the orthogonal projection of the second driving block on the substrate lies within the orthogonal projection of another of the plurality of first pixel electrodes on the substrate.

[0024] According to any of the foregoing embodiments of the first aspect of the present invention, the display panel has a first display area and a second display area, the light transmittance of the first display area is greater than the light transmittance of the second display area, and a first signal line layer is located in the first display area.

[0025] According to any of the foregoing embodiments of the first aspect of the present invention, the size of the pixel electrode in the first display area is smaller than the size of the pixel electrode in the second display area;

[0026] The pixel electrodes of the first display area and the pixel electrodes of the second display area have the same orthographic projection area on the substrate but different shapes.

[0027] According to any of the foregoing embodiments of the first aspect of the present invention, at least a portion of the edges of the orthogonal projection of the pixel electrode of the first display area on the substrate are rounded.

[0028] According to any of the foregoing embodiments of the first aspect of the present invention, the orthographic projection of the pixel electrode of each first display area on the substrate is composed of a first graphic unit or composed of two or more second graphic units spliced ​​together, wherein the first graphic unit includes at least one selected from the group consisting of circles, ellipses, dumbbells, and gourds.

[0029] According to any of the foregoing embodiments of the first aspect of the present invention, the pixel electrode of the first display area is a light-transmitting electrode.

[0030] According to any of the foregoing embodiments of the first aspect of the present invention, the pixel electrode of the first display area is a reflective electrode.

[0031] According to any of the foregoing embodiments of the first aspect of the present invention, the pixel electrode of the first display area includes an indium tin oxide layer or an indium zinc oxide layer.

[0032] According to any of the foregoing embodiments of the first aspect of the present invention, a plurality of sub-pixels are arranged in rows and columns, a plurality of driving units are arranged in rows and columns, and the arrangement structure of the sub-pixels is different from the arrangement structure of the driving units.

[0033] According to any of the foregoing embodiments of the first aspect of the present invention, the row direction of the plurality of sub-pixels intersects with the row direction of the plurality of driving units; and / or, the column direction of the plurality of sub-pixels intersects with the column direction of the plurality of driving units.

[0034] According to any of the foregoing embodiments of the first aspect of the present invention, the arrangement paths of the plurality of sub-pixels and the plurality of driving units in the same direction are different.

[0035] According to any of the foregoing embodiments of the first aspect of the present invention, the orthogonal projection area of ​​the driving unit on the substrate is less than or equal to half the pixel size.

[0036] A second aspect of the present invention provides a display device comprising a display panel according to any of the above embodiments.

[0037] According to an embodiment of the present invention, the display panel includes a substrate, a driving layer, a first electrode layer, and a first signal line layer. The driving layer includes multiple driving units, and the first electrode layer includes pixel electrodes. The driving units are used to connect to at least one pixel electrode and to drive the display panel to emit light. At least some of the driving units' orthogonal projections on the substrate lie within the orthogonal projections of the pixel electrodes on the substrate, which can improve the overall light transmittance of the display panel. The first signal line includes multiple first transparent wires, and at least two driving units are interconnected through the first transparent wires, which can further improve the light transmittance of the display panel and facilitate under-display integration of photosensitive components. Attached Figure Description

[0038] Other features, objects, and advantages of the invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals denote the same or similar features, and the drawings are not drawn to scale.

[0039] Figure 1 A top view schematic diagram of a display panel according to an embodiment of the present invention is shown;

[0040] Figure 2 An example is shown. Figure 1 A magnified view of a portion of the Q region;

[0041] Figure 3 An embodiment is shown. Figure 2A partial sectional view at point AA in the middle;

[0042] Figure 4 This is a top view of a partial layer structure of a display panel provided in a first aspect embodiment of the present invention;

[0043] Figure 5 This shows a top view of a first electrode layer of a display panel according to a first aspect embodiment of the present invention;

[0044] Figure 6 Another embodiment is shown. Figure 2 Sectional view at point AA;

[0045] Figure 7 In another embodiment shown Figure 2 Sectional view at point AA;

[0046] Figure 8 This diagram shows a top view of a partial layer structure of a display panel according to another embodiment of the first aspect of the present invention.

[0047] Figure 9 This diagram illustrates the structure of a display device according to a second aspect embodiment of the present invention.

[0048] Figure 10 Show Figure 9 Sectional view at point DD.

[0049] 10. Display panel; 20. Photosensitive component;

[0050] 100. Substrate;

[0051] 200, Driver layer; 210, Driver unit; 210a, Repeated driver group; 210b, First driver block; 210c, Second driver block;

[0052] 300, First electrode layer; 310, Pixel electrode;

[0053] 400, First signal line layer; 410, First transparent conductor;

[0054] 500 pixels; 530 light-emitting units;

[0055] 600, Second signal line layer; 610, Second transparent conductor; 620, Third transparent conductor;

[0056] 700, planarization layer;

[0057] 800, Pixel definition layer; 810, Isolation structure; 820, Pixel aperture;

[0058] 900, Second electrode layer. Detailed Implementation

[0059] The features and exemplary embodiments of various aspects of the present invention will now be described in detail. To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are not configured to limit the present invention. For those skilled in the art, the present invention can be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the invention.

[0060] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0061] It should be understood that when describing the structure of a component, when referring to a layer or region as being "above" or "on top of" another layer or region, it can mean that it is directly above the other layer or region, or that it contains other layers or regions between it and the other layer or region. Furthermore, if the component is flipped over, that layer or region will be located "below" or "under" the other layer or region.

[0062] In electronic devices such as mobile phones and tablets, it is necessary to integrate light-sensing components such as front-facing cameras, infrared light sensors, and proximity sensors on one side of the display panel. In some embodiments, a light-transmitting display area can be provided on the aforementioned electronic device, and the light-sensing components can be placed behind the light-transmitting display area, thereby achieving a full-screen display of the electronic device while ensuring that the light-sensing components function properly.

[0063] To improve the light transmittance of the light-transmitting display area and facilitate the arrangement of the driving units of the sub-pixels within the light-transmitting display area, it is often necessary to set a transition display area around the display area and place the driving unit of the display area in the transition display area to improve the light transmittance of the display area. This will result in a transition display area on the display panel, with a more obvious display boundary, affecting the display effect of the display panel.

[0064] To address the aforementioned problems, embodiments of the present invention provide a display panel and a display device. The following description, in conjunction with the accompanying drawings, will illustrate various embodiments of the display panel and the display device.

[0065] This invention provides a display panel, which may be an organic light-emitting diode (OLED) display panel.

[0066] Figure 1 A top view schematic diagram of a display panel according to an embodiment of the present invention is shown. Figure 2 An example is shown. Figure 1 A magnified view of the Q region.

[0067] The display panel 10 has a first display area AA1, a second display area AA2, and a non-display area NA surrounding the first display area AA1 and the second display area AA2. The light transmittance of the first display area AA1 is greater than that of the second display area AA2.

[0068] In this paper, the transmittance of the first display area AA1 is preferably greater than or equal to 15%. To ensure that the transmittance of the first display area AA1 is greater than 15%, or even greater than 40%, or even higher, in this embodiment, the transmittance of each functional film layer of the display panel 10 is greater than 80%, and even at least some functional film layers have a transmittance greater than 90%.

[0069] According to the present invention, the first display area AA1 has a higher light transmittance than the second display area AA2, so that a photosensitive component can be integrated on the back of the first display area AA1, thereby achieving under-screen integration of a photosensitive component such as a camera. At the same time, the first display area AA1 can display an image, thereby increasing the display area of ​​the display panel 10 and realizing a full-screen design for the display device.

[0070] Please refer to section 2 and 3 together. Figure 3 , Figure 3 Showing a Figure 2 A partial sectional view at point AA.

[0071] like Figure 2 and Figure 3As shown, the display panel 10 provided according to an embodiment of the present invention includes: a substrate 100; a driving layer 200 disposed on the substrate 100, the driving layer 200 including a plurality of driving units 210; a first electrode layer 300 disposed on the side of the driving layer 200 away from the substrate 100, the first electrode layer 300 including a plurality of arrayed pixel electrodes 310, each driving unit 210 being electrically connected to at least one driving layer pixel electrode 310, and at least some of the driving units 210 having their orthogonal projections on the substrate 100 located within the orthogonal projections of the pixel electrodes 310 on the substrate 100; and a first signal line layer 400 disposed between the first electrode layer 300 and the substrate 100, the first signal line layer 400 including a plurality of first transparent wires 411, and at least two driving units 210 being interconnected through the first transparent wires 411.

[0072] There are several ways to position the first signal line layer 400. The first signal line layer 400 can be positioned throughout the entire display area. Alternatively, the first signal line layer 400 can be positioned within the first display area AA1.

[0073] According to an embodiment of the present invention, the display panel 10 includes a substrate 100, a driving layer 200, a first electrode layer 300, and a first signal line layer 400. The driving layer 200 includes a plurality of driving units 210, and the first electrode layer 300 includes pixel electrodes 310. The driving units 210 are used to connect at least one pixel electrode 310 and to drive the display panel 10 to emit light. At least some of the driving units 210 have their orthogonal projections on the substrate 100 located within the orthogonal projections of the pixel electrodes 310 on the substrate 100, which can improve the overall light transmittance of the display panel 10. The first signal line includes a plurality of first transparent wires 411, and at least two driving units 210 are interconnected through the first transparent wires 411, which can further improve the light transmittance of the display panel and facilitate the under-display integration of the photosensitive component 20.

[0074] The substrate 100 can be made of light-transmitting materials such as glass or polyimide (PI).

[0075] The driving unit 210 is connected to the pixel electrode 310 and is used to drive the display panel 10 for display. The circuit structure of the driving unit 210 can be configured in various ways, including any one of the following: 2T1C circuit, 7T1C circuit, 7T2C circuit, 9T1C circuit, 4T2C circuit, 3T1C circuit, and 6T1C circuit. In this text, "2T1C circuit" refers to a driving unit 210 that includes two thin-film transistors (T) and one capacitor (C). The other circuits, such as "7T1C circuit," "7T2C circuit," "9T1C circuit," "4T2C circuit," "3T1C circuit," and "6T1C circuit," are analogous to this.

[0076] There are several possible locations for the first signal line layer 400. The first signal line layer 400 can be located within the driving layer 200, or between the driving layer 200 and the first electrode layer 300, or between the driving layer 200 and the substrate 100.

[0077] Please continue reading. Figure 2 In some optional embodiments, the display panel 10 includes a plurality of pixel units 500 arranged in an array. Each pixel unit 500 includes two or more sub-pixels. Each pixel electrode 310 is connected to each sub-pixel. At least one pixel unit 500 has a driving unit 210 corresponding to a plurality of sub-pixels forming a set of repeating driving groups 210a. The two sets of repeating driving groups 210a are interconnected by a first transparent wire 411.

[0078] In these optional embodiments, the repeating drive group 210a includes multiple drive units 210, and the multiple drive units 210 within the pixel unit 500 are used to drive multiple sub-pixels within a pixel unit 500 for display. The two repeating drive groups 210a are interconnected by a first transparent wire 411, which ensures that the second display area has high light transmittance and that the information transmission between the drive units 210 within a repeating drive group 210a is effective.

[0079] There are various ways to configure sub-pixels, for example, a sub-pixel may include a light-emitting unit 530. The light-emitting unit 530 and the pixel electrode 310 are correspondingly configured, and the light-emitting unit 530 is located on the side of the pixel electrode 310 facing away from the substrate 100. The display panel 10 also includes a second electrode layer 900, which is located on the side of the light-emitting unit 530 facing away from the substrate 100. The second electrode layer 900 may be, for example, a common electrode layer.

[0080] There are various ways to configure the light-emitting unit 530. For example, the light-emitting unit 530 may include an OLED light-emitting layer. Depending on the design requirements, the light-emitting unit 530 may include at least one of a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, and an electron injection layer.

[0081] Optionally, the display panel 10 further includes a pixel definition layer 800 located on the side of the first electrode layer 300 facing away from the substrate 100. The pixel definition layer 800 includes an isolation structure 810 and a pixel opening 820 formed by the isolation structure 810, with the light-emitting unit 530 located within the pixel opening 820. The pixel electrode 310 is disposed corresponding to the pixel opening 820.

[0082] The display panel 10 also includes a metal layer. Optionally, when the driving unit 210 is located on the metal layer, since the first signal line layer 400 and the metal layer are made of different materials, the first signal line layer 400 and the metal layer where the driving unit 210 is located are set on different layers. Therefore, through-holes need to be provided in the insulating layer between the metal layer and the first signal line layer 400, and preset positions need to be reserved on the driving unit 210 so that the first transparent wire 411 of the first signal line layer 400 can be connected to the preset positions via the through-holes. When all the interconnections between the driving units 210 use the first transparent wire 411, more positions need to be reserved on the driving unit 210, and more through-holes need to be opened in the insulating layer, which increases the manufacturing difficulty and the area of ​​the metal layer.

[0083] In the display panel 10 provided in the embodiment of the present invention, the two sets of repeating drive groups 210a are connected to each other by a first transparent wire 411, so that fewer through holes are opened on the insulating layer and fewer preset positions are reserved on the drive unit 210 to complete the connection between the first transparent wire 411 and the drive unit 210.

[0084] There are various ways to set the number of metal layers. Optionally, there can be two metal layers. The driving layer 200 includes a first metal layer and a second metal layer sequentially disposed in the direction away from the substrate 100. There are various ways to set the position of the first signal line layer 400. For example, the first signal line layer 400 can be located between the first metal layer and the second metal layer, or the first signal line layer 400 can also be located on the side of the second metal layer away from the substrate 100 layer.

[0085] In some alternative embodiments, the number of metal layers can be three. When the driving layer 200 includes a first metal layer, a second metal layer and a third metal layer disposed sequentially in a direction away from the substrate 100, the first signal line layer 400 can be located between the first metal layer and the second metal layer, between the second metal layer and the third metal layer, or the first signal line layer 400 can be located on the side of the third metal layer away from the second metal layer.

[0086] Please refer to the following: Figure 4 , Figure 4 This is a top view of a partial layer structure of a display panel 10 provided in the first aspect embodiment of the present invention. Figure 4 The diagram illustrates the relative positions of the first electrode layer 300 and the driving unit 210 in the display panel 10.

[0087] According to the first aspect of the present invention, the display panel 10 has a driving unit 210 electrically connected to two or more pixel electrodes 310, so that the driving unit 210 can drive two or more sub-pixels to be displayed.

[0088] In these alternative embodiments, the driving unit 210 is electrically connected to two or more pixel electrodes 310, that is, the driving unit 210 can drive two or more sub-pixels to display, so that the number of first driving units 210 can meet the driving requirements and further improve the light transmittance of the display panel.

[0089] Optionally, the driving unit 210 located in the first display area AA1 is electrically connected to two or more pixel electrodes 310 located in the first display area AA1, so that the driving unit 210 can drive two or more sub-pixels located in the first display area AA1 to display, thereby improving the light transmittance of the first display area AA1.

[0090] like Figure 4 As shown, the pixel electrodes 310 in the first row are connected to the corresponding pixel electrodes 310 in the second row. Thus, the driving unit 210 in one row can drive the sub-pixels in two rows for display, which can reduce the number of driving units 210 and thereby improve the light transmittance of the display panel.

[0091] In some alternative embodiments, the pixel electrodes 310 of the first column can be interconnected with the corresponding pixel electrodes 310 of the second column, so that one column of first driving unit 211 can drive two columns of first pixels for display.

[0092] In some alternative embodiments, three or more pixel electrodes 310 may be connected, enabling the driving unit 210 to drive three or more sub-pixels for display.

[0093] In some alternative embodiments, the sub-pixel includes a first light-emitting unit 530, and the pixel opening 820 includes a first pixel opening 820 for receiving the first light-emitting unit 530.

[0094] In some alternative embodiments, the orthographic projection of each first light-emitting unit 530 onto the substrate 100 consists of one first graphic unit or is composed of two or more first graphic units spliced ​​together, wherein the first graphic unit includes at least one selected from the group consisting of circles, ellipses, dumbbells, gourds, and rectangles.

[0095] Please continue reading. Figure 2 and Figure 4Optionally, the repeating drive group 210a includes three or more drive units 210. The three or more drive units 210 include a first drive block 210b and a second drive block 210c. The first drive block 210b includes at least two drive units 210, and the second drive block 210c includes at least one drive unit 210 other than the first drive block 210b. The spacing between two adjacent drive units 210 in the first drive block 210b is smaller than the spacing between the first drive block 210b and the second drive block 210c. The first drive block 210b and the second drive block 210c are interconnected by a first transparent wire 411.

[0096] In these alternative embodiments, the drive units 210 that are far apart are connected to each other by a first transparent wire 411, which can further improve the light transmittance of the first display area.

[0097] Optionally, the repeating drive group 210a may further include a third drive block, which includes at least one drive unit 210 other than the first drive block 210b and the second drive block 210c. The spacing between two adjacent drive units 210 in the first drive block 210b is smaller than the spacing between the first drive block 210b and the third drive block. Alternatively, the spacing between two adjacent drive units 210 in the first drive block 210b is smaller than the spacing between the second drive block 210c and the third drive block. The first drive block 210b and the second drive block 210c are interconnected by a first transparent wire 411. The second drive block 210c and the third drive block are interconnected by a first transparent wire 411. The first drive block 210b and the third drive block are interconnected by a first transparent wire 411.

[0098] For example, when pixel unit 500 includes four sub-pixels, and each of the four sub-pixels is provided with a corresponding pixel electrode 310, and each pixel electrode 310 is respectively connected to a driving unit 210, then a set of repeating driving groups 210a has four driving units 210, and the spacing between at least two of the four driving units 210 is different. The three driving units 210 that are closer together are combined to form a first driving block 210b, and the other driving unit 210 is a second driving block 210c. The spacing between the first driving block 210b and the second driving block 210c is greater than the spacing between the two driving units 210 within the first driving block 210b. Then, the first driving block 210b and the second driving block 210c are interconnected by a first transparent wire 411.

[0099] In some alternative embodiments, for example, when pixel unit 500 includes eight sub-pixels, the eight sub-pixels are respectively provided with eight pixel electrodes 310, and the eight pixel electrodes 310 are connected to four driving units 210, that is, two pixel electrodes 310 are connected to the same driving unit 210. Then a set of repeating driving groups 210a has four driving units 210, and the first driving block 210b may include two or three driving units 210, and the corresponding second driving block 210c may include two or one driving unit 210.

[0100] Optionally, at least a portion of the first driving block 210b has its orthogonal projection on the substrate 100 within the orthogonal projection of one of the plurality of pixel electrodes 310 on the substrate 100; at least a portion of the second driving block 210c has its orthogonal projection on the substrate 100 within the orthogonal projection of another of the plurality of pixel electrodes 310 on the substrate 100.

[0101] In these alternative embodiments, the first driving block 210b and the second driving block 210c are located below different pixel electrodes 310, which can further improve the light transmittance of the first display area.

[0102] Please refer to the following: Figure 5 , Figure 5 This is a top view of the first electrode layer 300 of a display panel 10 provided in the first aspect embodiment of the present invention.

[0103] According to the embodiment of the present invention, the pixel electrode 310 of the first display area AA1 and the pixel electrode 310 of the second display area AA2 have the same orthogonal projection area on the substrate 100 but different shapes.

[0104] In these optional embodiments, the pixel electrodes 310 of the first display area AA1 and the pixel electrodes 310 of the second display area AA2 have the same orthographic projection area on the substrate 100, which can improve the display difference between the first display area AA1 and the second display area AA2. The pixel electrodes 310 of the first display area AA1 and the pixel electrodes 310 of the second display area AA2 have different orthographic projection shapes on the substrate 100, which can improve the diffraction phenomenon of the first display area AA1.

[0105] There are various ways to arrange the shape of the pixel electrode 310. For example, at least part of the edge of the orthogonal projection of the pixel electrode 310 on the substrate 100 is rounded, which can avoid the formation of diffraction gaps between two adjacent pixel electrodes 310 and improve the display effect of the first display area.

[0106] In some alternative embodiments, the orthographic projection of each pixel electrode 310 onto the substrate 100 consists of a first graphic unit or is composed of two or more second graphic units joined together, the first graphic unit including at least one selected from the group consisting of circles, ellipses, dumbbells, and gourds.

[0107] In these alternative embodiments, the orthographic projection of the pixel electrode 310 onto the substrate 100 is irregular, which can avoid the formation of a large diffraction gap between two adjacent first pixels and improve the display effect of the first display area.

[0108] There are several options for the material configuration of the pixel electrode 310. Optionally, the pixel electrode 310 can be a light-transmitting electrode, and its material may include a light-transmitting conductive material to further improve the light transmittance of the first display area. Alternatively, the pixel electrode 310 can be a reflective electrode, and its material may include a reflective metallic material, such as a magnesium-silver alloy. Alternatively, the pixel electrode 310 may include an indium tin oxide layer or an indium zinc oxide layer.

[0109] Please refer to the following: Figure 4 and Figure 6 , Figure 6 In another embodiment Figure 2 Sectional view at point AA.

[0110] In some alternative embodiments, the display panel 10 further includes: a second signal line layer 600 located on the side of the first display area facing the first electrode layer 300 from the driving layer 200; the second signal line layer 600 includes a plurality of second transparent wires 610; and two or more pixel electrodes 310 connected to the same driving unit 210, the two or more pixel electrodes 310 being interconnected through the second transparent wires 610.

[0111] In these optional embodiments, when the driving unit 210 is connected to two or more pixel electrodes 310, the two or more pixel electrodes 310 are interconnected through a second transparent wire 610, so that the driving unit 210 can be connected to any one of the two or more pixel electrodes 310. By providing the second transparent wire 610, it is convenient to connect two or more pixel electrodes 310 to the driving unit 210, and the influence of the second transparent wire 610 on the light transmittance of the first display area can be reduced.

[0112] There are multiple possible positions for the second signal line layer 600. Optionally, the second signal line layer 600 is located on the side of the first signal line layer 400 away from the substrate 100, which can prevent the first transparent wire 411 and the second transparent wire 610 from crossing in the thickness direction, and facilitate the arrangement of the first transparent wire 411 and the second transparent wire 610.

[0113] Optionally, when the driving layer 200 includes a first metal layer and a second metal layer, the second signal line layer 600 may be located on the side of the second metal layer away from the first metal layer, and the first signal line layer 400 may be located between the first metal layer and the second metal layer.

[0114] When the driving layer 200 includes a first metal layer, a second metal layer and a third metal layer, the second signal line can be located on the side of the third metal layer away from the second metal layer, and the first signal line layer 400 is located on the side of the third metal layer facing the second metal layer.

[0115] Alternatively, both the first signal line layer 400 and the second signal line layer 600 may be located on the side of the third metal layer opposite to the second metal layer. For example, when the display panel 10 further includes a planarization layer 700 located on the side of the third metal layer opposite to the second metal layer, the first signal line layer 400 may be located between the third metal layer and the planarization layer 700, and the second signal line layer 600 may be located on the side of the planarization layer 700 opposite to the third metal layer.

[0116] In some optional embodiments, the second signal line layer 600 and the first electrode layer 300 are disposed on the same layer. On the one hand, this facilitates the interconnection of the first electrodes through the second transparent conductor 610 of the second signal line layer 600, and on the other hand, it avoids increasing the thickness of the display panel 10 by setting up the second signal line layer 600.

[0117] When the second signal line layer 600 and the first electrode layer 300 are disposed in the same layer, the second signal line layer 600 and the first electrode layer 300 can be made of the same material, so that the second signal line layer 600 and the first electrode layer 300 can be formed in the same manufacturing process, thereby improving the manufacturing efficiency of the display panel 10.

[0118] Please refer to the following: Figure 7 , Figure 7 In yet another embodiment Figure 2 Sectional view at point AA.

[0119] Optionally, the second signal line layer 600 also includes a third transparent conductor 620 for connecting two adjacent sets of repeating drive groups 210a. This can further improve the light transmittance of the first display area.

[0120] There are various ways to set the first transparent conductor 411 and the third transparent conductor 620. For example, the first transparent conductor 411 can be part of one of the data line and the scan line, and the third transparent conductor 620 can be part of the other of the data line and the scan line.

[0121] For example, the first transparent guide 411 is part of a data line, extending along a first direction and connecting to two adjacent sets of repetitive drive groups 210a. The third transparent guide 620 is part of a scan line, extending along a second direction and connecting to two adjacent sets of repetitive drive groups 210a.

[0122] The materials for the first transparent conductor 411, the second transparent conductor 610, and the third transparent conductor 620 can be selected from various sources. Optionally, the first transparent conductor 411 includes an indium tin oxide layer or an indium zinc oxide layer, giving it good conductivity and light transmittance. Optionally, the second transparent conductor 610 includes an indium tin oxide layer or an indium zinc oxide layer, giving it good conductivity and light transmittance. Optionally, the third transparent conductor 620 includes an indium tin oxide layer or an indium zinc oxide layer, giving it good conductivity and light transmittance.

[0123] There are multiple ways to arrange the driving unit 210 and the sub-pixels. For example, the arrangement of the driving unit 210 and the arrangement of the sub-pixels can be the same.

[0124] In some alternative embodiments, multiple sub-pixels are arranged in rows and columns, multiple driving units 210 are arranged in rows and columns, and the arrangement structure of the sub-pixels is the same as the arrangement structure of the driving units 210.

[0125] The sub-pixel arrangement structure refers to the arrangement pattern formed by sub-pixels arranged according to a certain rule. The driving unit 210 arrangement structure refers to the arrangement pattern formed by the driving unit 210 arranged according to a certain rule.

[0126] In these alternative embodiments, the driving units 210 and the sub-pixels are arranged in the same way, so that more driving units 210 can be covered by the pixel electrodes 310, thereby improving the light transmittance of the display panel 10.

[0127] Please see Figure 8 In some optional embodiments, multiple driving units 210 are arranged in rows and columns, and the arrangement path of the driving units 210 in at least one of the row and column directions is curved or wavy. For example, the driving units 210 are arranged in rows and columns along both the horizontal and vertical directions in the figure, and the arrangement path of the driving units 210 in the horizontal direction is wavy. Alternatively, the arrangement path of the driving units 210 in the vertical direction is wavy. Or, the arrangement pattern of the driving units 210 in both the horizontal and vertical directions is wavy. This can avoid the diffraction gaps formed between two adjacent rows or columns of driving units 210 and improve the diffraction phenomenon.

[0128] Optionally, the projected area of ​​the driving unit 210 on the substrate 100 is less than or equal to half the pixel size. The smaller size of the driving unit 210 can further improve the light transmittance of the display panel 10.

[0129] Pixel size refers to the size of a single subpixel. Pixel size can be an average value, for example, it can be calculated by dividing the area of ​​the display panel by the number of pixels.

[0130] For example, the display panel 10 may also include an encapsulation layer located on the side of the second electrode layer 900 away from the first electrode layer 300, and a polarizer and a cover plate located above the encapsulation layer. Alternatively, the cover plate may be directly disposed above the encapsulation layer without the need for a polarizer, or at least the cover plate may be directly disposed above the encapsulation layer of the first display area without the need for a polarizer, thus avoiding the polarizer affecting the amount of light collected by the photosensitive element disposed below the corresponding first display area. Of course, a polarizer may also be disposed above the encapsulation layer of the first display area.

[0131] A second aspect of the present invention also provides a display device, which may include the display panel 10 of any of the above embodiments. The following description will take one embodiment of the display device as an example, in which the display device includes the display panel 10 of the above embodiments.

[0132] Figure 9 This diagram shows a top view of a display device according to an embodiment of the present invention. Figure 10 Show Figure 9 A cross-sectional view along the DD direction. In the display device of this embodiment, the display panel 10 can be the display panel 10 of any of the embodiments of the first aspect described above. The display panel 10 has a first display area and a second display area, and the light transmittance of the first display area is greater than the light transmittance of the second display area.

[0133] The display panel 10 includes a first surface S1 and a second surface S2 facing each other, wherein the first surface S1 is the display surface. The display device also includes a photosensitive component 20, which is located on the second surface S2 side of the display panel 10 and corresponds to the position of the first display area.

[0134] The photosensitive component 20 can be an image acquisition device used to acquire external image information. In this embodiment, the photosensitive component 20 is a complementary metal-oxide-semiconductor (CMOS) image acquisition device. In other embodiments, the photosensitive component 20 can also be a charge-coupled device (CCD) image acquisition device or other forms of image acquisition device. It is understood that the photosensitive component 20 is not limited to an image acquisition device. For example, in some embodiments, the photosensitive component 20 can also be an infrared sensor, a proximity sensor, an infrared lens, a flood illuminator, an ambient light sensor, and a dot projector, etc., as a light sensor. In addition, the display device can also integrate other components on the second surface S2 of the display panel 10, such as a handset and a speaker.

[0135] According to the display device of the present invention, the light transmittance of the first display area is greater than that of the second display area, so that the display panel 10 can integrate the photosensitive component 20 on the back of the first display area, thereby realizing the under-screen integration of the photosensitive component 20 of an image acquisition device, and at the same time, the first display area can display the image, thereby increasing the display area of ​​the display panel 10 and realizing the full-screen design of the display device.

[0136] The embodiments of the present invention described above are not exhaustive, nor do they limit the invention to the specific embodiments described. Clearly, many modifications and variations can be made based on the above description. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to effectively utilize the invention and its modifications. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A display panel, characterized in that, The display panel includes: Substrate; A driving layer is disposed on the substrate, and the driving layer includes a plurality of driving units; A first electrode layer is disposed on the side of the driving layer away from the substrate. The first electrode layer includes a plurality of arrayed pixel electrodes. Each driving unit is electrically connected to at least one pixel electrode. At least a portion of the driving units are projected onto the substrate within the projected image of the pixel electrode onto the substrate. A first signal line layer is disposed between the first electrode layer and the substrate. The first signal line layer includes a plurality of first transparent wires, and at least two driving units are interconnected through the first transparent wires. The display panel includes multiple pixel units arranged in an array. Each pixel unit includes two or more sub-pixels. Each sub-pixel is disposed on a pixel electrode. The driving units corresponding to multiple sub-pixels in at least one pixel unit form a set of repeating driving groups. Two sets of repeating driving groups are interconnected through the first transparent wire.

2. The display panel according to claim 1, characterized in that, The driving unit is electrically connected to two or more pixel electrodes so that the driving unit can drive two or more sub-pixels to be displayed.

3. The display panel according to claim 1, characterized in that, The display panel further includes: a second signal line layer located on the side of the driving layer facing the first electrode layer, the second signal line layer including multiple second transparent wires; two or more pixel electrodes are connected to the same driving unit, and the two or more pixel electrodes are interconnected through the second transparent wires.

4. The display panel according to claim 3, characterized in that, The second signal line layer is located on the side of the first signal line layer that is away from the substrate.

5. The display panel according to claim 3, characterized in that, The driving layer includes a first metal layer and a second metal layer disposed sequentially in a direction away from the substrate, wherein the first signal line layer is located between the first metal layer and the second metal layer, or the first signal line layer is located on the side of the second metal layer away from the substrate.

6. The display panel according to claim 3, characterized in that, The driving layer consists of a first metal layer, a second metal layer, and a third metal layer arranged sequentially in the direction away from the substrate. The first signal line layer is located between the first metal layer and the second metal layer, or between the second metal layer and the third metal layer, or on the side of the third metal layer away from the second metal layer.

7. The display panel according to claim 6, characterized in that, The display panel further includes a planarization layer located between the first electrode layer and the third metal layer, with the first signal line layer located on the side of the planarization layer facing the driving layer, and the second signal line layer located on the side of the planarization layer facing the first electrode layer.

8. The display panel according to claim 3, characterized in that, The second signal line layer and the first electrode layer are disposed on the same layer.

9. The display panel according to claim 3, characterized in that, The second signal line layer also includes a third transparent conductor for connecting two adjacent sets of the repeating drive groups.

10. The display panel according to claim 9, characterized in that, The first transparent conductor is part of one of the data line and the scan line, and the third transparent conductor is part of the other of the data line and the scan line.

11. The display panel according to claim 9, characterized in that, The first transparent conductor includes an indium tin oxide layer or an indium zinc oxide layer; And / or, the second transparent wire includes an indium tin oxide layer or an indium zinc oxide layer; And / or, the third transparent conductor includes an indium tin oxide layer or an indium zinc oxide layer.

12. The display panel according to claim 1, characterized in that, The repeating drive group includes three or more drive units, which form a first drive block and a second drive block. The first drive block includes at least two drive units, and the second drive block includes at least one drive unit other than the first drive block. The spacing between two adjacent drive units in the first drive block is smaller than the spacing between the first drive block and the second drive block. The first drive block and the second drive block are interconnected through the first transparent wire.

13. The display panel according to claim 12, characterized in that, At least a portion of the orthographic projection of the first driving block on the substrate lies within the orthographic projection of one of the plurality of pixel electrodes on the substrate; at least a portion of the orthographic projection of the second driving block on the substrate lies within the orthographic projection of another of the plurality of pixel electrodes on the substrate.

14. The display panel according to claim 1, characterized in that, The display panel has a first display area and a second display area, the light transmittance of the first display area is greater than that of the second display area, and the first signal line layer is located in the first display area.

15. The display panel according to claim 14, characterized in that, The size of the pixel electrode in the first display area is smaller than the size of the pixel electrode in the second display area; The pixel electrodes of the first display area and the pixel electrodes of the second display area have the same projected area on the substrate but different shapes.

16. The display panel according to claim 14, characterized in that, At least a portion of the edges of the orthogonal projection of the pixel electrode of the first display area onto the substrate are rounded.

17. The display panel according to claim 14, characterized in that, The orthographic projection of the pixel electrode of each of the first display areas onto the substrate is composed of a first graphic unit or composed of two or more second graphic units spliced ​​together, wherein the first graphic unit includes at least one selected from the group consisting of circles, ellipses, dumbbells, and gourds.

18. The display panel according to claim 14, characterized in that, The pixel electrode in the first display area is a light-transmitting electrode; And / or, the pixel electrode of the first display area is a reflective electrode.

19. The display panel according to claim 14, characterized in that, The pixel electrode of the first display area includes an indium tin oxide layer or an indium zinc oxide layer.

20. The display panel according to claim 1, characterized in that, The plurality of pixel electrodes are arranged in rows and columns, and the plurality of driving units are arranged in rows and columns, and the arrangement structure of the driving units is the same as the arrangement structure of the pixel electrodes, so that the driving units are covered by the pixel electrodes; Alternatively, multiple drive units may be arranged in rows or columns, and the arrangement path of the drive units in at least one of the row and column directions may be curved or wavy.

21. The display panel according to claim 1, characterized in that, The orthogonal projection area of ​​the driving unit on the substrate is less than or equal to half the pixel size.

22. A display device, characterized in that, Includes the display panel according to any one of claims 1 to 21.

Images