Display panel and display device

Abstract

The application discloses a display panel and a display device, and relates to the technical field of display, and comprises a display area, the display area comprises a first display area and an optical component area; a light emitting element, the light emitting element comprises a first light emitting element and a second light emitting element, the first light emitting element is located in the first display area, and the second light emitting element is located in the optical component area; the first display area comprises a plurality of pixel driving unit columns arranged along a first direction, the pixel driving unit columns comprise a first pixel driving unit column, the first pixel driving unit column comprises a plurality of first pixel driving circuits, and one first pixel driving circuit is electrically connected with one second light emitting element. The first pixel driving circuit electrically connected with the second light emitting element in the optical component area is arranged in the first display area, so that the space of the optical component area is not occupied, and therefore the light transmittance and overall display quality of the optical component area are improved.

Description

[0001] This application is a divisional application filed on July 13, 2022, with application number 202210824328.X and the invention title "Display Panel and Display Device". Technical Field

[0002] This invention relates to the field of display technology, and more specifically, to a display panel and a display device. Background Technology

[0003] Currently, display devices such as mobile phones and tablets often need to reserve space on the front for commonly used electronic photosensitive devices such as front-facing cameras, infrared sensors, and fingerprint recognition devices. For example, if these photosensitive devices are located at the top of the front of the display device, a non-display area will be formed in that location, resulting in a reduced screen-to-body ratio.

[0004] With the development of display technology, display panels are achieving increasingly higher screen-to-body ratios. Full-screen displays, with their narrow or even borderless bezels, have garnered widespread attention. In related technologies, to improve the screen-to-body ratio, an optical component area can be created within the display area of ​​the display panel to house the aforementioned photosensitive devices. For example, an optical component area can be set up within the display area of ​​the screen, with a camera positioned below the screen and correspondingly within this area. During normal display, the optical component area functions as a display; when taking photos or videos, the camera captures images or videos through this area, thus enabling simultaneous display and recording. Currently, improving the light transmittance of the optical component area and the overall display effect of the display panel are among the current research trends. Summary of the Invention

[0005] In view of this, the present invention provides a display panel and a display device, which aim to improve the light transmittance and light sensitivity of the product in the optical component area, and improve the overall display quality of the product.

[0006] In a first aspect, the present invention provides a display panel, comprising:

[0007] The display area includes a first display area and an optical component area;

[0008] The light-emitting element includes a first light-emitting element and a second light-emitting element, wherein the first light-emitting element is located in the first display area and the second light-emitting element is located in the optical component area;

[0009] The first display area includes a plurality of pixel driving unit columns arranged along a first direction. The pixel driving unit columns include a first pixel driving unit column, which includes a plurality of first pixel driving circuits. One first pixel driving circuit is electrically connected to one second light-emitting element.

[0010] Secondly, based on the same inventive concept, the present invention provides a display device including the display panel provided in the first aspect of the present invention.

[0011] Compared with related technologies, the display panel and display device provided by the present invention achieve at least the following beneficial effects:

[0012] The display panel and display device provided in this embodiment of the invention include a first display area and an optical component area. Optionally, the first display area at least partially surrounds the optical component area, which can be used to house, for example, electronic photosensitive devices such as cameras, infrared sensors, and fingerprint recognition devices. The first display area is provided with a first light-emitting element, and the optical component area is provided with a second light-emitting element. During the display phase, both the optical component area and the first display area perform display functions, and the second light-emitting element in the optical component area is driven to emit light by a first pixel driving circuit. During the light-sensing phase, the optical component area can serve as a light-transmitting area to achieve a light-sensing function, at which time the second light-emitting element in the optical component area may not emit light. In particular, this invention places the first pixel driving circuit used to drive the second light-emitting element in the optical component area to emit light in the first pixel driving unit column in the first display area, and does not place the first pixel driving circuit in the optical component area, thereby avoiding the influence of the first pixel driving circuit on the light transmittance of the optical component area, thus improving the light-sensing performance of the optical component area during the light-sensing phase. Furthermore, since a first pixel driving circuit drives a second light-emitting element to emit light, compared with the related technology where a pixel driving circuit drives two or more second light-emitting elements to emit light, the present invention is more conducive to improving the display effect of the optical component area during the display stage, reducing the display brightness difference between the optical component area and the first display area, and thus improving the overall display effect of the display panel and display device, and enhancing the display quality.

[0013] Of course, any product implementing this invention does not necessarily need to achieve all of the technical effects described above at the same time.

[0014] Other features and advantages of the invention will become clear from the following detailed description of exemplary embodiments of the invention with reference to the accompanying drawings. Attached Figure Description

[0015] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the invention and, together with their description, serve to explain the principles of the invention.

[0016] Figure 1 The diagram shown is a structural schematic of a display panel provided in an embodiment of the present invention;

[0017] Figure 2The diagram shown is a schematic diagram of the pixel driving circuit in a display panel provided in an embodiment of the present invention;

[0018] Figure 3 The diagram shown is a schematic representation of a connection between the second light-emitting element in the optical component area of ​​the display panel and the first pixel driving circuit in the first display area, according to an embodiment of the present invention.

[0019] Figure 4 The diagram shown illustrates another connection between the second light-emitting element in the optical component area of ​​the display panel and the first pixel driving circuit in the first display area, as provided in an embodiment of the present invention.

[0020] Figure 5 The diagram shown is another connection diagram between the second light-emitting element in the optical component area of ​​the display panel and the first pixel driving circuit in the first display area provided in an embodiment of the present invention;

[0021] Figure 6 The image shown is a schematic diagram of a film layer of a display panel provided in an embodiment of the present invention;

[0022] Figure 7 The diagram shown is another connection diagram between the second light-emitting element in the optical component area of ​​the display panel and the first pixel driving circuit in the first display area provided in the embodiment of the present invention;

[0023] Figure 8 The diagram shown is a schematic diagram of the connection between the pixel driving circuit and the data signal line in the first pixel driving unit column provided in an embodiment of the present invention.

[0024] Figure 9 The diagram shown is a schematic diagram of a connection between the first pixel driving circuit and the data signal line in a display panel provided in an embodiment of the present invention.

[0025] Figure 10 The diagram shown is a schematic diagram of a connection between the first dummy pixel driving circuit and the data signal line provided in an embodiment of the present invention.

[0026] Figure 11 The diagram shown is another arrangement of the pixel driving circuit in the display panel provided in an embodiment of the present invention;

[0027] Figure 12 The diagram shows a possible distribution of pixel drive columns around the optical component area;

[0028] Figure 13 The diagram shown is a schematic diagram of the connection between the second dummy pixel driving circuit and the data signal line provided in an embodiment of the present invention.

[0029] Figure 14 The diagram shown is another structural schematic of the display panel provided in an embodiment of the present invention;

[0030] Figure 15 The diagram shown is another structural schematic of the display panel provided in an embodiment of the present invention;

[0031] Figure 16 The diagram shown is another structural schematic of the display panel provided in an embodiment of the present invention;

[0032] Figure 17 The diagram shown is another structural schematic of the display panel provided in an embodiment of the present invention;

[0033] Figure 18 The diagram shows a film layer between the first signal line and the first or second connection portion;

[0034] Figure 19 The diagram shown is another structural schematic of the display panel provided in an embodiment of the present invention;

[0035] Figure 20 The diagram shown is another structural schematic of the display panel provided in an embodiment of the present invention;

[0036] Figure 21 The diagram shown is another structural schematic of the display panel provided in an embodiment of the present invention;

[0037] Figure 22 The diagram shown is a schematic diagram of the connection between at least two first pixel driving circuits and the same second light-emitting element in a display panel provided by an embodiment of the present invention;

[0038] Figure 23 The diagram shown is a structural schematic of a display device provided in an embodiment of the present invention. Detailed Implementation

[0039] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention.

[0040] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0041] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0042] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0043] Various modifications and variations can be made to this invention without departing from its spirit or scope, as will be apparent to those skilled in the art. Therefore, this invention is intended to cover modifications and variations falling within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the embodiments provided in this invention can be combined with each other without contradiction.

[0044] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0045] In related technologies, when an optical component area is created in the display area of ​​a display panel to house photosensitive devices such as cameras, infrared sensors, and fingerprint recognition devices, in order to increase the screen-to-body ratio and achieve a narrow bezel or borderless display effect, light-emitting elements and corresponding pixel driving circuits are typically introduced into the optical component area. During the display stage, the pixel driving circuit in the optical component area drives the light-emitting elements in the optical component area to emit light. However, since the pixel driving circuit usually includes electronic components such as transistors, placing the pixel driving circuit in the optical component area can significantly affect the light transmittance of the optical component area, thus affecting its photosensitivity.

[0046] In view of this, the present invention provides a display panel, comprising: a display area, the display area including a first display area and an optical component area; light-emitting elements, the light-emitting elements including a first light-emitting element and a second light-emitting element, the first light-emitting element being located in the first display area, and the second light-emitting element being located in the optical component area; the first display area including a plurality of (two or more) pixel driving unit columns arranged along a first direction, the pixel driving unit columns including a first pixel driving unit column, the first pixel driving unit column including a plurality of (two or more) first pixel driving circuits, one first pixel driving circuit being electrically connected to one second light-emitting element. By placing the first pixel driving circuit connected to the second light-emitting element in the optical component area in the first display area, the space occupied by the first pixel driving circuit in the optical component area is avoided, effectively improving the light transmittance of the optical component area, thus improving the photosensitivity of the optical component area. Furthermore, the electrical connection method between the first pixel driving circuit and the second light-emitting element also helps to improve the driving performance of the second light-emitting element, improve the display effect of the optical component area during the display stage, and thus help to improve the overall display quality of the display panel and display device.

[0047] The above is the core idea of ​​this invention. The technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the embodiments of this invention.

[0048] Figure 1 The diagram shown is a structural schematic of a display panel provided in an embodiment of the present invention. Figure 1 A schematic diagram of the arrangement of the first light-emitting element P1 and the second light-emitting element P2 on the display panel is shown, but the corresponding pixel driving circuit is not shown. Figure 2 The diagram shown is a schematic representation of the arrangement of the pixel driving circuit 20 in a display panel according to an embodiment of the present invention. The arrangement of the pixel driving circuit 20 is intended to clearly illustrate this. Figure 2 The first light-emitting element P1 and the second light-emitting element P2 are not shown in the figure. Figure 3 The diagram shown is a schematic representation of the connection between the second light-emitting element P2 in the optical component area AA2 of the display panel provided in an embodiment of the present invention and the first pixel driving circuit 21 in the first display area AA1. The connection relationship between the two is clearly illustrated. Figure 3 The first light-emitting element P1 and other pixel driving circuits in the first display area AA1 are not shown.

[0049] Please combine Figures 1 to 3 This embodiment provides a display panel 100, including:

[0050] Display area AA, which includes first display area AA1 and optical component area AA2;

[0051] The light-emitting element P includes a first light-emitting element P1 and a second light-emitting element P2. The first light-emitting element P1 is located in the first display area AA1, and the second light-emitting element P2 is located in the optical component area AA2.

[0052] The first display area AA1 includes a plurality of (two or more) pixel driving unit columns 10 arranged along the first direction D1. The pixel driving unit column 10 includes a first pixel driving unit column 11. The first pixel driving unit column 11 includes a plurality of (two or more) first pixel driving circuits 21. One first pixel driving circuit 21 is electrically connected to a second light-emitting element P2.

[0053] Specifically, the display panel 100 provided in this embodiment of the invention includes a first display area AA1 and an optical component area AA2. Optionally, the first display area AA1 at least partially surrounds the optical component area AA2. Figure 1 and Figure 2Taking the semi-enclosed optical component area AA2 of the first display area AA1 as an example, this optical component area AA2 is used to house electronic photosensitive devices such as cameras, infrared sensors, and fingerprint recognition devices. The first display area AA1 is equipped with a first light-emitting element P1, and the optical component area AA2 is equipped with a second light-emitting element P2. During the display phase, both the optical component area AA2 and the first display area AA1 perform display functions. The second light-emitting element P2 of the optical component area AA2 is driven to emit light by the first pixel driving circuit 21. During the light-sensing phase, the optical component area AA2 acts as a light-transmitting area to achieve the light-sensing function, and the second light-emitting element P2 of the optical component area AA2 may not emit light at this time. For example, when a camera is installed in the optical component area AA2, during the light-sensing phase, the optical component area AA2 acts as a light-transmitting area to achieve the image capture function. In this embodiment, integrating the optical component area AA2 into the display area AA helps to reduce the space of the non-display area AA of the display panel, thereby facilitating the design of a narrow bezel or a bezel-less display panel.

[0054] In particular, this invention places the first pixel driving circuit 21, which is used to drive the second light-emitting element P2 of the optical component area AA2 to emit light, in the first pixel driving unit column 11 of the first display area AA1, and does not place the first pixel driving circuit 21 in the optical component area AA2. This avoids the influence of the first pixel driving circuit on the light transmittance of the optical component area AA2, and thus helps to improve the photosensitivity of the optical component area AA2 in the light-sensing stage. In addition, the second light-emitting element P2 in the optical component area AA2 and the first pixel driving circuit 21 in the first display area AA1 use one first pixel driving circuit 21 to drive one second light-emitting element P2 to emit light. Compared with the related art schemes where one pixel driving circuit drives two or more second light-emitting elements to emit light, this invention is more conducive to improving the display effect of the optical component area AA2 in the display stage, reducing the difference in display brightness between the optical component area AA2 and the first display area AA1, and thus helping to improve the overall display effect of the display panel and display device, and improve display quality.

[0055] It should be noted that, Figure 2 Only one position of the first pixel unit column is illustrated, specifically, the first pixel driving unit column 11 is shown located on both sides of the optical component area AA2 along the first direction D1. In some other embodiments of the present invention, the first pixel driving unit column 11 may also be located on at least one side of the optical component area AA2 along the second direction D2. The present invention does not specifically limit this. For example, please refer to... Figure 4 , Figure 4The diagram shows another connection between the second light-emitting element P2 in the optical component area AA2 of the display panel provided in this embodiment of the invention and the first pixel driving circuit 21 in the first display area AA1. In this embodiment, the pixel driving unit column where the first pixel driving circuit 21 is located is located on one side of the optical component area AA2 along the second direction.

[0056] It should also be noted that, as mentioned in this embodiment, the first pixel driving unit column 11 includes a plurality of (two or more) first pixel driving circuits 21. One feasible implementation is that the first pixel driving unit column 11 only includes the first pixel driving circuit 21. For example, please refer to... Figure 3 Another feasible implementation is that, in addition to the first pixel driving circuit 21, the first pixel driving unit column 11 may also include other pixel driving circuits, such as pixel driving circuits that are not connected to the second light-emitting element P2. This will be described in subsequent embodiments.

[0057] Optionally, the display panel 100 provided in this embodiment can be a display panel using organic light-emitting diode (OLED) display technology. The basic structure of an OLED display panel typically includes an anode, a light-emitting layer, and a cathode. When a suitable voltage is supplied, holes in the anode and electrons in the cathode combine in the light-emitting layer to produce light. Compared to thin-film transistor liquid crystal displays, OLED display devices have high visibility and high brightness, and are also more energy-efficient, lightweight, and thinner. Of course, in some other embodiments of the present invention, the display panel can also be a display panel using inorganic light-emitting diode (OLED) display technology, such as a Micro LED display panel, or a MiniLED display panel, etc.

[0058] It should also be noted that, Figure 1 and Figure 2 This invention only illustrates the case where the display panel includes one optical component area AA2. In some other embodiments of this application, the display panel 100 may also be provided with two or more optical component areas AA2 as needed. This application does not specifically limit this. The following description only uses the case where the display panel 100 includes one optical component area AA2 as an example. When the display panel 100 includes a plurality of (two or more) optical component areas AA2, the embodiments of this invention can be referred to. Figure 1 and Figure 2 The illustration only shows the case where the first display area AA1 partially surrounds the optical component area AA2. In some other embodiments of the present invention, the first display area AA1 may also fully surround the optical component area AA2. Figure 1 and Figure 2This application only shows one relative positional relationship between the first display area AA1 and the optical component area AA2 in the display panel 100. In some other embodiments of this application, the optical component area AA2 may also be located in other positions in the display panel 100, and this application does not specifically limit this. Furthermore... Figures 1 to 3 The rectangular shape of the optical component area AA2 is merely illustrative. In some other embodiments of this application, the optical component area AA2 may also be circular, elliptical, or other shapes. The size of the optical component area AA2 can also be set according to actual needs, and this application does not impose specific limitations on it. Furthermore... Figure 1 This diagram illustrates only one pixel arrangement for the first display area AA1 and the optical component area AA2. For example, please refer to... Figure 5 , Figure 5 Taking the circular optical component area AA2 as an example, and the shape of the light-emitting element contained in the optical component area AA2 is also circular, the shape of the light-emitting element in the first display area AA1 can be set to be the same as that of the optical component area AA2, or it can be set to be different. The present invention does not specifically limit this. Figure 5 The diagram shown is another connection diagram between the second light-emitting element P2 in the optical component area AA2 of the display panel provided in the embodiment of the present invention and the first pixel driving circuit 21 in the first display area AA1.

[0059] also, Figure 1 and Figure 2 The implementation only uses a rectangular display panel as an example to illustrate the shape of the display panel of the present invention, and does not limit the actual shape of the display panel. In some other embodiments of the present invention, the shape of the display panel may also be other, such as circular, elliptical, non-rectangular or other irregular shapes, etc.

[0060] Optionally, this embodiment only uses the example of a straight line L0 connecting the first pixel driving circuit 21 and the second light-emitting element P2. In some other embodiments of the present invention, to avoid diffraction in the optical component region AA2, the connecting line L0 of the optical component region AA2 can be set as a curve. In addition, to further improve the light transmittance of the optical component region AA2, the connecting line L0 of the optical component region AA2 can be set as a transparent line.

[0061] Figure 6 The diagram shown is a schematic diagram of a film layer of a display panel provided in an embodiment of the present invention. This embodiment illustrates a schematic diagram of the film layer distribution of the connecting leads in the optical component area AA2. Please refer to the diagram. Figure 6Optionally, the display panel provided in this embodiment of the invention includes a substrate 00, an array layer 01 disposed on the substrate 00, a light-emitting element layer 02 disposed on the side of the array layer 01 facing away from the substrate 00, and an encapsulation layer 03 disposed on the side of the light-emitting element layer 02 facing away from the substrate 00. Optionally, it is used to connect the second light-emitting element P2 and the first pixel driving circuit 21. Figure 6 The diagram only shows a schematic of the film layers for the connection lead L0 of the driving transistor T0 in the pixel driving circuit. In this embodiment, the connection lead L0 is placed in three different film layers, which helps to avoid the problems of insufficient space and reduced light transmittance of the optical device area that may occur when the connection lead L0 is placed in a single layer. Of course, Figure 6 The embodiments shown are for illustrative purposes only. In some other embodiments of the present invention, the connecting lead L0 of the optical component area AA2 may be disposed in two different film layers or in three or more different film layers. The present invention does not specifically limit this.

[0062] Continue to combine Figure 1 , Figure 2 and Figure 5 and Figure 7 , Figure 7 The diagram shows another connection between the second light-emitting element P2 in the optical component area AA2 of the display panel provided in the embodiment of the present invention and the first pixel driving circuit 21 in the first display area AA1. In an optional embodiment of the present invention, the first pixel driving unit column 11 further includes a plurality of (two or more) first dummy pixel driving circuits 22.

[0063] It is understood that the dummy pixel driving circuit mentioned in the embodiments of the present invention refers to a pixel driving circuit that is not connected to the light-emitting element under normal circumstances, or in other words, the dummy pixel driving circuit does not function to drive the light-emitting element to emit light under normal circumstances. Optionally, the structure of the dummy pixel driving circuit is the same as or substantially the same as the structure of the pixel driving circuit in the display panel that can drive the light-emitting element to emit light. Optionally, the first dummy pixel driving circuit is reused as a repair pixel driving circuit, that is, it is used to replace the operation of the pixel driving circuit corresponding to the first light-emitting element and / or the second light-emitting element when the pixel driving circuit is in an abnormal working state.

[0064] In this embodiment of the invention, a first pixel driving unit column 11 is introduced into the first display area AA1. The first pixel driving circuit 21 in the first pixel driving unit column 11 drives the second light-emitting element P2 of the optical component area AA2 to emit light. Furthermore, a first dummy pixel driving circuit 22 can also be introduced into the first pixel driving unit column 11. It is understood that the pixel driving unit column in this embodiment of the invention includes not only the first pixel driving unit column 11, but also other pixel driving unit columns. At least some of the pixel driving circuits in the other pixel driving unit columns are used to drive the first light-emitting element P1 in the first display area AA1 to emit light. When a plurality of (two or more) pixel driving unit columns 10 are provided in the display panel, in actual manufacturing, the plurality of (two or more) pixel driving unit columns 10 can be manufactured using the same manufacturing process. Moreover, when the first dummy pixel driving circuit 22 is retained in the first pixel driving unit column 11, it is not necessary to remove the unnecessary pixel driving circuit after the complete pixel driving unit column 11 is manufactured; instead, it can be used as the first dummy pixel driving circuit 22. Therefore, it is beneficial to simplify the manufacturing process of the display panel and improve the production efficiency of the display panel. Optionally, the first pixel driving unit column further includes a third pixel driving circuit, wherein the third pixel driving circuit is electrically connected to the first light-emitting element.

[0065] Please refer to Figure 5 In an optional embodiment of the present invention, the first pixel driving circuit 21 and the first dummy pixel driving circuit 22 are arranged alternately in the first pixel driving unit column 11.

[0066] Specifically, in the first pixel driving unit column 11, the first pixel driving circuit 21 is a pixel driving circuit electrically connected to the second light-emitting element P2 in the optical component area AA2, while the first dummy pixel driving circuit 22 is a pixel driving circuit not connected to any light-emitting element. Figure 5 In the first pixel driving unit column 11 shown in the embodiment, the first pixel driving circuit 21 and the first dummy pixel driving circuit 22 are arranged alternately. That is, the pixel driving circuit electrically connected to the second light-emitting element P2 and the pixel driving circuit not electrically connected to the second light-emitting element P2 are arranged alternately. In practical applications, according to the pixel arrangement structure of the optical component area AA2 and its positional relationship with the pixel driving circuits in the first pixel unit column, the pixel driving circuit that is easy to wire can be selected from the first pixel driving unit column 11 as the first pixel driving circuit 21 connected to the second light-emitting element P2, and the remaining pixel driving circuits not connected to the second light-emitting element P2 can be used as the first dummy pixel driving circuit 22, so as to simplify the connection complexity between the first pixel driving circuit 21 and the second light-emitting element P2.

[0067] It should be noted that, Figure 5In the illustrated embodiment, the first pixel driving unit column 11 only limits the alternating arrangement of the first pixel driving circuit 21 and the first dummy pixel driving circuit 22, without limiting their order. In some other embodiments of the present invention, the first dummy pixel driving circuit 22 may also be located in the first pixel driving unit column 11. Figure 5 The illustration only shows an alternating arrangement of one first pixel driving circuit 21 and one first dummy pixel driving circuit 22. In some other embodiments of the present invention, the arrangement can also be a plurality of first pixel driving circuits 21 and one first dummy pixel driving circuit 22 alternating, a first pixel driving circuit 21 and a plurality of first dummy pixel driving circuits 22 alternating, or a plurality of first pixel driving circuits 21 and a plurality of first dummy pixel driving circuits 22 alternating. The embodiments of the present invention do not limit this.

[0068] Please refer to Figure 7 In an optional embodiment of the present invention, the first pixel driving circuit 21 and the first dummy pixel driving circuit 22 are respectively centrally arranged in the first pixel driving unit column 11.

[0069] Specifically, in the first pixel driving unit column 11, the first pixel driving circuit 21 is a pixel driving circuit electrically connected to the second light-emitting element P2 in the optical component area AA2, while the first dummy pixel driving circuit 22 is a pixel driving circuit not connected to any light-emitting element. Figure 7 In the embodiment, the first pixel driving unit column 11 shown in the dashed box has first pixel driving circuits 21 electrically connected to the second light-emitting element P2 adjacent to each other. In other words, no first dummy pixel driving circuit 22 is provided between two adjacent first pixel driving circuits 21. The first dummy pixel driving circuits 22 not electrically connected to the second light-emitting element P2 are adjacent to each other. In other words, no first pixel driving circuit 21 is provided between two adjacent first dummy pixel driving circuits 22. Optionally, a plurality of (two or more) pixel driving circuits adjacent to the optical component area AA2 in the first pixel driving unit column 11 are designated as first pixel driving circuits 21, and the remaining pixel driving circuits are designated as first dummy pixel driving circuits 22. The first pixel driving circuits 21 and the first dummy pixel driving circuits 22 are essentially set up separately. This arrangement reduces the length of the connecting lead between the first pixel driving circuit 21 and the second light-emitting element P2 connected to it, thus simplifying the wiring complexity and improving the production efficiency of the display panel.

[0070] Understandable Figures 3 to 5 as well as Figure 7In the illustrated embodiment, the second light-emitting element P2 included in the optical component area AA2 and the connection relationship between the second light-emitting element P2 and the first pixel driving circuit 21 are only schematic and do not limit the number, shape and arrangement structure of the second light-emitting element P2 actually included in the optical component area AA2.

[0071] Figure 8 The diagram shown is a schematic representation of the connection between the pixel driving circuit and the data signal line in the first pixel driving unit column 11 provided in an embodiment of the present invention. Figure 9 The diagram shown is a schematic representation of a connection between the first pixel driving circuit 21 and the data signal line in a display panel provided in an embodiment of the present invention. Figure 10 The diagram shown is a schematic representation of a connection between the first dummy pixel driving circuit 22 and the data signal line provided in an embodiment of the present invention. Please refer to the diagram. Figures 8 to 10 In an optional embodiment of the present invention, the first display area AA1 further includes a first dummy data signal line DL01 electrically connected to the first dummy pixel driving circuit 22, and the first dummy data signal line DL01 is electrically connected to a fixed voltage signal terminal.

[0072] It is understandable that display panels typically have multiple data signal lines. Pixel driving circuits that drive the light-emitting elements are connected to the data signal lines DL to acquire data signals and ultimately generate the driving current or driving voltage to drive the light-emitting elements. In the manufacturing process of the data signal lines, multiple data signal lines are manufactured in the same process. Among the formed data signal lines, the data signal line connected to the first dummy pixel driving circuit 22 is the first dummy data signal line DL01, which does not actually transmit data signals to the first dummy pixel driving circuit 22; while the data signal lines connected to other pixel driving circuits that actually perform the driving function are the data signal lines that can transmit data signals in the true sense. This embodiment of the invention retains the first dummy data signal line DL01, which does not perform data signal transmission, eliminating the need to introduce a process to remove this part of the data signal line. Therefore, it helps to simplify the manufacturing process of the display panel and improve the production efficiency of the display panel. Considering that the connection between the pixel driving circuit and the data signal line in the display panel is completed in the same process, this embodiment retains the connection between the first dummy data signal line DL01 and the first dummy pixel driving circuit 22, without introducing additional manufacturing processes. Therefore, it also helps to improve the manufacturing efficiency of the display panel. Optionally, the data signal lines in the display panel are evenly arranged to improve the overall display uniformity of the display panel and also helps to avoid uneven black states when the display panel is off.

[0073] Figure 9 and Figure 10The illustrated embodiment uses a pixel driving circuit with a 7T1C (7 transistors and 1 capacitor) structure as an example for illustrative purposes. This does not limit the structure of the pixel driving circuit in this invention; in some other embodiments, the pixel driving circuit may also be embodied in other structures such as 8T1C. Figure 9 Taking the first pixel driving circuit 21 shown as an example, the first pixel driving circuit 21 includes a driving transistor T0, first transistors T1 to T6, and a storage capacitor C0. Optionally, the gate of the driving transistor T0 is connected to the first node N1, the first terminal is connected to the second node N2, and the second terminal is connected to the third node N3. The second light-emitting element P2 is connected in series between the fourth node N4 and the second power supply terminal PVEE. The first transistor T1 is connected in series between the first reset terminal Vref1 and the first node N1. The second transistor T2 is connected in series between the data signal line DL and the second node N2. The third transistor T3 is connected in series between the first node N1 and the third node N3. The fourth transistor T4 is connected in series between the second reset terminal Vref2 and the fourth node N4. The fifth transistor T5 is connected in series between the first power supply terminal PVDD and the second node N2. The sixth transistor T6 is connected in series between the third node N3 and the fourth node N4. The storage capacitor C0 is connected in series between the first power supply terminal PVDD and the first node N1.

[0074] Optionally, continue to refer to Figure 9 The first pixel driving circuit 21 operates in the following stages: a first reset stage, a second reset stage, a data writing stage, and a light-emitting stage. In the first reset stage, the first transistor T1 turns on in response to the conduction level of the first control terminal S1 and transmits the reset signal of the first reset terminal Vref1 to the first node N1. In the second reset stage, the fourth transistor T4 turns on in response to the conduction level of the fourth control terminal S4 and transmits the reset signal of the second reset terminal Vref2 to the fourth node N4 to reset the anode of the second light-emitting element P2. In the data writing stage, the second transistor T2 turns on in response to the conduction level of the second control terminal S2, and the third transistor T3 turns on in response to the conduction level of the third control terminal S2. The data signal on the data signal line DL is transmitted to the second node N2, and the signal of the second node N2 is transmitted to the third node N3 through the driving transistor T0. The signal of the third node N3 is transmitted to the first node N1. During the light-emitting phase, the fifth transistor T5 and the sixth transistor T6 are turned on in response to the signal from the Emit light-emitting control signal terminal, driving transistor T0 to transmit the driving signal to the second light-emitting element P2, driving the second light-emitting element P2 to emit light. It should be noted that the first reset phase and the second reset phase can be performed simultaneously or in a time-division manner; this embodiment of the invention does not specifically limit this. The above-described operation process of the pixel driving circuit is merely illustrative and does not limit the actual operation process of the pixel driving circuit of the present invention. Optionally, Figure 10The configuration of the first dummy pixel driving circuit 22 in the illustrated embodiment is similar to... Figure 9 The first pixel driving circuit in the same way is constructed.

[0075] When the pixel driving circuit is a pixel driving circuit that can actually perform driving functions, for example, please refer to... Figure 9 This pixel driving circuit is electrically connected to the light-emitting elements on the display panel, and it is also electrically connected to the data signal line DL on the display panel that can actually transmit data signals. When the pixel driving circuit is a first dummy pixel driving circuit 22 or a pixel driving circuit that does not perform a driving function, for example, please refer to... Figure 10 The first dummy pixel driving circuit 22 will not be electrically connected to the light-emitting elements on the display panel, and the first dummy data signal line DL01 connected to this part of the first dummy pixel driving circuit 22 will not perform the function of transmitting data signals. In this embodiment, the first dummy data signal line DL01 is electrically connected to the fixed voltage signal terminal in the display panel, so that the first dummy data signal line DL01 receives the fixed voltage signal. This avoids the possibility that static electricity may be introduced into the display panel through the first dummy data signal line DL01 when the first dummy data signal line DL01 is floating, which would affect the normal display of the display panel. Therefore, it is beneficial to improve the overall anti-static capability of the display panel.

[0076] Alternatively, please refer to Figure 10 The aforementioned fixed voltage terminal may be, for example, the first power supply terminal PVDD or the second power supply terminal PVEE in the display panel, or the first reset signal terminal Vref1 or the second reset signal terminal Vref2. This invention does not specifically limit the specific type of terminal.

[0077] Please refer to Figure 1 In an optional embodiment of the present invention, the light-emitting element density is the same in the optical component area AA2 and the first display area AA1.

[0078] Specifically, the "same density of light-emitting elements" mentioned in the embodiments of the present invention refers to the same number of light-emitting elements contained in the same unit area. Optionally, the light-emitting elements in the first display area AA1 and the optical component area AA2 have the same shape and arrangement, so that the light-emitting elements in the first display area AA1 and the optical component area AA2 of the display panel can be uniformly arranged. During the display stage, the luminous brightness of the optical component area AA2 and the first display area AA1 will be consistent or tend to be consistent, thus effectively improving the uniformity of display brightness of the display panel with the optical component area AA2.

[0079] Please combine Figure 1 and Figure 2In an optional embodiment of the present invention, the total number of pixel driving circuits 20 included in the display panel is greater than the total number of light-emitting elements. It is understood that the pixel driving circuit 20 here includes not only the pixel driving circuit connected to the first light-emitting element P1 in the first display area AA1 and the pixel driving circuit connected to the second light-emitting element P2 in the optical component area AA2, but also a dummy pixel driving circuit.

[0080] Optionally, in the display panel provided in this embodiment of the invention, the first pixel driving circuit 21 and the second light-emitting element P2 in the light-emitting component area are arranged in a one-to-one correspondence. The first light-emitting element P1 in the first display area AA1 is also electrically connected to the pixel driving circuit in a one-to-one correspondence. In this embodiment, the total number of pixel driving circuits included in the display panel is greater than the total number of light-emitting elements. Since the pixel driving circuits in this invention are all arranged in the first display area AA1, in addition to the pixel driving circuits that are electrically connected to the first light-emitting element P1 and the second light-emitting element P2 respectively, the first display area AA1 also has a dummy pixel driving circuit, that is, a pixel driving circuit that is not connected to either the first light-emitting element P1 or the second light-emitting element P2. In the manufacturing process of the pixel driving circuit, when the pixel driving circuit electrically connected to the second light-emitting element P2 is placed in the first display area AA1, all the pixel driving circuits in the first display area AA1 are manufactured together, and the number of pixel driving circuits manufactured is greater than the number of light-emitting elements. While satisfying the driving of each light-emitting element, there is no need to remove the redundant pixel driving circuits. Instead, the redundant pixel driving circuits are used as dummy pixel driving circuits. Therefore, there is no need to introduce a process to remove the dummy pixel driving circuits. This helps to simplify the manufacturing process of the display panel and improve the production efficiency of the display panel.

[0081] Continue to refer to Figure 3 , Figure 5 and Figure 7 In an optional embodiment of the present invention, at least a portion of the first pixel driving circuit 21 in the first pixel driving unit column 11 overlaps with the optical component area AA2 along the first direction D1.

[0082] Specifically, at least a portion of the first pixel driving circuit 21 overlaps with the optical component area AA2 along the first direction D1. This means that at least a portion of the first pixel driving circuit 21 is located on one or both sides of the optical component area AA2 along the first direction D1. This arrangement helps to reduce the distance between the first pixel driving circuit 21 and the second light-emitting element P2 connected to it. When the first pixel driving circuit 21 and the second light-emitting element P2 are electrically connected by the connecting lead L0, it is equivalent to reducing the length of the connecting lead L0, which helps to reduce the wiring difficulty of the connecting lead L0 and improve the manufacturing efficiency of the display panel.

[0083] In this invention, please refer to Figure 2 When the first pixel driving circuit 21 connected to the second light-emitting element P2 in the optical component area AA2 is placed in the first display area AA1, it is equivalent to increasing the number of pixel driving circuits 20 contained in the first display area AA1. To make room for the first pixel driving unit column 11 where the first pixel driving circuit 21 is located, one option is to compress the distance between the pixel area driving unit columns adjacent to the optical component area AA2 along the first direction D1, and place the newly added first pixel area driving unit column in the space freed up by the aforementioned compression, while the pixel driving unit columns in other areas remain unchanged. For example, please refer to Figure 2 A first pixel driving unit column 11 is added in the first region A1, but no first pixel driving unit column 11 is added in the second region A2. At this time, the arrangement density of the pixel driving column in the first region A1 is greater than the arrangement density of the pixel driving unit column in the second region. That is, the distance between adjacent pixel driving unit columns in the first region A1 is less than the distance between adjacent pixel driving unit columns in the second region.

[0084] Figure 11 The diagram shown illustrates another arrangement of the pixel driving circuit in the display panel provided by an embodiment of the present invention. This embodiment demonstrates another arrangement of the pixel driving unit columns when the first pixel driving unit column 11 is introduced in the first display area AA1. Please refer to... Figure 11 In an optional embodiment of the present invention, the pixel driving unit column 10 is uniformly arranged in the first direction D1.

[0085] Specifically, when the first pixel driving unit column 11 is introduced into the first display area AA1, the first pixel driving unit column 11 and other pixel driving unit columns can be arranged uniformly in the first display area AA1. That is, the interval between any two adjacent pixel driving unit columns 10 along the first direction D1 is the same. This is beneficial to improving the uniformity of the overall circuit layout in the first display area AA1 of the display panel, and to reducing or avoiding the problem of uneven display brightness that may be caused by uneven pixel circuit layout. Therefore, the uniform arrangement of the pixel driving unit column 10 is beneficial to further improve the overall display effect of the display panel.

[0086] Figure 12 The diagram shown illustrates one possible distribution of the pixel drive column surrounding the optical component area AA2. Please refer to it for adaptation. Figure 11 and Figure 12In an optional embodiment of the present invention, the display panel further includes a first non-display area NA1, the pixel driving unit column 10 includes a second pixel driving unit column 12, the second pixel driving unit column 12 includes a plurality of (two or more) second dummy pixel driving circuits 32; along the second direction D2, the second pixel driving unit column 12 is located between the first non-display area NA1 and the optical component area AA2, and the second direction D2 intersects with the first direction D1.

[0087] Optionally, Figure 11 The embodiment shown illustrates a scheme where the first non-display area NA1 is the lower border area of ​​the display panel. In some other embodiments of the present invention, the first non-display area NA1 may also be the upper border area of ​​the display panel, and the second pixel driving unit column 12 may also be located between the upper border area and the optical component area AA2. Alternatively, the second pixel driving unit column 12 may be provided between the upper border and the optical component area AA2, and also between the lower border and the optical component area AA2. This embodiment is only described using the example of the second pixel driving unit column 12 being located between the optical component area AA2 and the lower border.

[0088] Specifically, when the first pixel driving unit column 11 is introduced into the optical component area AA2 along both sides of the first direction D1, in order to improve the overall uniformity of the pixel driving unit column distribution on the display panel, a second pixel driving unit column 12 can also be introduced into the optical component area AA2 along the second direction D2 on one or both sides. The second pixel driving unit column 12 includes a second dummy pixel driving circuit 32. Thus, in the actual manufacturing of the pixel driving unit column, it can be manufactured according to the specification of a uniform overall distribution. The extra pixel driving unit column in the optical component area AA2 can be used as the second pixel driving unit column 12, without the need for additional processes to remove this excess pixel driving unit column. Therefore, while ensuring the overall uniformity of the pixel driving unit column arrangement, it also helps to simplify the manufacturing process of the display panel.

[0089] Continue to combine Figure 11 and Figure 12 In an optional embodiment of the present invention, the first display area AA1 further includes a second dummy data signal line DL02 electrically connected to the second dummy pixel driving circuit 32, and the second dummy data signal line DL02 is electrically connected to a fixed voltage signal terminal.

[0090] In the manufacturing process of data signal lines, multiple data signal lines are fabricated in the same process. Among the resulting data signal lines, the data signal line connected to the second dummy pixel driving circuit 32 is the second dummy data signal line DL02, which does not actually transmit data signals to the second dummy pixel driving circuit 32. The data signal lines DL connected to other pixel driving circuits that actually perform driving functions are the true data signal lines that can transmit data signals. This embodiment of the invention retains the second dummy data signal line DL02, which does not perform data signal transmission, eliminating the need for a process to remove this part of the data signal line. This simplifies the manufacturing process of the display panel and improves its production efficiency. Considering that the connection between the pixel driving circuit and the data signal lines in the display panel is completed in the same process, this embodiment retains the connection between the second dummy data signal line DL02 and the second dummy pixel driving circuit 32, eliminating the need for additional manufacturing processes. Therefore, this also helps to improve the manufacturing efficiency of the display panel. Optionally, the second dummy pixel driving circuit is reused as a repair pixel driving circuit, that is, it is used to replace the pixel driving circuit corresponding to the first light-emitting element and / or the second light-emitting element when the pixel driving circuit is in an abnormal working state.

[0091] Figure 13 The diagram shown illustrates a connection between the second dummy pixel driving circuit 32 and the data signal line according to an embodiment of the present invention. Optionally, the configuration of the second dummy pixel driving circuit 32 is the same as that of the first dummy pixel driving circuit 22 and the first pixel driving circuit 21, for example, it can be represented as a 7T1C structure. Specific connection relationships can be found in [reference needed]. Figure 9 The connection relationship between the transistors and capacitors in the first pixel driving circuit 21 is not described here. In this embodiment, the second dummy data signal line DL02 is electrically connected to the fixed voltage signal terminal in the display panel, allowing the second dummy data signal line DL02 to receive a fixed voltage signal. This prevents static electricity from being introduced into the display panel through the second dummy data signal line DL02 when it is floating, thus avoiding any impact on the normal display. Therefore, it helps improve the overall anti-static capability of the display panel. Optionally, please refer to... Figure 13 The aforementioned fixed voltage terminal may be, for example, the first power supply terminal PVDD or the second power supply terminal PVEE in the display panel, or the first reset signal terminal Vref1 or the second reset signal terminal Vref2. This invention does not specifically limit the specific type of terminal.

[0092] Figure 14The diagram shown is another structural schematic of the display panel provided in an embodiment of the present invention. This embodiment shows the first light-emitting element P1 and the second light-emitting element P2 in the first display area AA1 and the optical component area AA2 of the display panel, and shows part of the pixel driving circuit in the first display area AA1, but not all of the pixel driving circuits in the first display area AA1.

[0093] Please refer to Figure 14 In an optional embodiment of the present invention, the pixel driving unit column 10 further includes a third pixel driving unit column 13 located in the first display area AA1. The third pixel driving unit column 13 includes a plurality of (two or more) second pixel driving circuits 24, and the second pixel driving circuits 24 are electrically connected to the first light-emitting element.

[0094] The third pixel driving unit column 13 includes a first sub-third pixel driving unit column 131, and the display panel also includes a first non-display area NA1. Along the second direction D2, the first sub-third pixel driving unit column 131 is located between the first non-display area NA1 and the optical component area AA2, and the second direction D2 intersects with the first direction D1.

[0095] The first display area AA1 also includes multiple data signal lines DL, including a first data signal line DL1 and a second data signal line DL2. The first data signal line DL1 is electrically connected to the first pixel driving circuit 21, and the second data signal line DL2 is electrically connected to the second pixel driving circuit 24 in the first sub-third pixel driving unit column 131. The first data signal line DL1 and the second data signal line DL2 are also electrically connected.

[0096] Continue to refer to Figure 14In this embodiment, the first pixel driving circuit 21, which is electrically connected to the second light-emitting element P2 in the optical component area AA2, is connected to the first data signal line DL1. The second pixel driving circuit 24, which is connected to the first light-emitting element and located in the first sub-third pixel unit column 131, is connected to the second data signal line DL2. The first data signal line DL1 and the second data signal line DL2 are also electrically connected. Optionally, the second light-emitting element P2 corresponding to the first data signal line DL1 and the first light-emitting element P1 corresponding to the second data signal line DL2 are located in the same pixel column. This is equivalent to realizing that the light-emitting elements located in the same column transmit data signals through the same data signal line (here, the data signal line formed by connecting the first data signal line DL1 and the second data signal line DL2). Optionally, the data signal line obtains data signals through the data signal terminal. When the first data line and the second data line are electrically connected, only one data signal terminal is needed for the first data signal line DL1 and the second data signal line DL2. There is no need to introduce different data signal terminals for the first data signal line DL1 and the second data signal line DL2 respectively. Therefore, there is no need to change the design of the bonding area and the manufacturing complexity of the display panel will not be increased.

[0097] Continue to refer to Figure 14 In an optional embodiment of the present invention, the first data signal line DL1 and the second data signal line DL2 are electrically connected through a first connection part 41, which is located in the display area AA or the first non-display area NA1.

[0098] Specifically, Figure 14 The illustrated embodiment shows a scheme in which one end of the first data signal line DL1, away from the optical component area AA2, and the other end of the second data signal line DL2, away from the optical component area AA2, are electrically connected via a first connecting portion 41 disposed in the first non-display area NA1. When the first connecting portion 41 is disposed in the first non-display area NA1, the first connecting portion 41 does not occupy the space of the display area AA, and therefore does not affect the aperture ratio of the display area AA. Optionally, when the first connecting portion 41 is disposed in the first non-display area NA1, the first connecting portion 41 can be disposed on the same layer as the first data signal line DL1 and / or the second data signal line DL2, or it can be disposed on a different layer from the first data signal line DL1 and the second data signal line DL2. The present invention does not specifically limit this.

[0099] Of course, in some other embodiments of the present invention, the first connecting portion 41 described above may also be disposed in the display area, for example, please refer to Figure 15 , Figure 15The diagram shows another structural schematic of the display panel provided in an embodiment of the present invention. In this embodiment, the end of the second data signal line DL2 near the optical component area AA2 is electrically connected to the first data signal line DL1 through the first connecting part 41. At this time, the first connecting part 41 is located in the display area AA. Optionally, the first connecting part 41 located in the display area AA is disposed on a different layer from the first data signal line DL1 and the second data signal line DL2 to avoid the problem that the connection between the first data signal line DL1 and the second data signal line DL2 may be unreliable due to insufficient space in the display area AA. Of course, if there is enough space in the film layer where the first data signal line DL1 and the second data signal line DL2 are located to accommodate the first connecting part 41, the first connecting part 41 can also be disposed on the same layer as the first data signal line DL1 and / or the second data signal line DL2. When the first data signal line DL1 and the second data signal line DL2 are electrically connected using the first connecting part 41 located in the display area AA, the electrically connected first data signal line DL1 and the second data signal line DL2 can still share the same data signal terminal to obtain data signals, without increasing the manufacturing complexity of the display panel.

[0100] Figure 16 The diagram shown is another structural schematic of the display panel provided in an embodiment of the present invention. This embodiment shows a scheme in which the corresponding first data signal line DL1 and second data signal line DL2 are electrically connected through the first connecting part 41 and the second connecting part 42.

[0101] Please refer to Figure 16 In an optional embodiment of the present invention, the first data signal line DL1 and the second data signal line DL2 are electrically connected in the first non-display area NA1 through the first connection part 41, and connected in the display area AA through the second connection part 42.

[0102] Specifically, another way to electrically connect the first data signal line DL1 corresponding to the second light-emitting element P2 in the optical component area AA2 and the second data signal line DL2 corresponding to the first light-emitting element P1 in the first display area AA1 is that the two are electrically connected through the first connecting part 41 located in the first non-display area NA1 and through the second connecting part 42 located in the display area. Optionally, in the display area AA, the end of the second data signal line DL2 near the optical component area AA2 is electrically connected through the second connecting part 42. In this way, the second data signal line DL2 and at least a portion of the line segments in the first data signal line DL1 form a parallel relationship, thereby effectively reducing the impedance of the interconnected first data signal line DL1 and second data signal line DL2. This helps to reduce the excessive voltage drop caused by excessive impedance when the data signal is transmitted on the first data signal line DL1 and second data signal line DL2, thus improving the accuracy of the data signal transmitted on the first data signal line DL1 and second data signal line DL2.

[0103] Figure 17 The diagram shown is another structural schematic of the display panel provided in an embodiment of the present invention, illustrating the first signal line L1 in the display panel. Figure 17 Other signal lines in the first display area AA1 are not shown. Figure 18 The diagram shown is a schematic representation of a film layer between the first signal line and the first or second connecting portion. Please refer to it. Figure 17 and Figure 18 and combined Figure 6 In an optional embodiment of the present invention, the first display area AA1 includes a first signal line L1 extending along a first direction D1, and the second connecting portion 42 overlaps with the first signal line L1 in the thickness direction of the display panel.

[0104] Please combine Figure 6 , Figures 14 to 18 In this embodiment of the invention, the overall extension direction of the data signal line is the second direction D2. Optionally, a first signal line L1 extending along the first direction D1, such as a scan line, a reset signal line, etc., may also be provided in the display panel. Figure 18 The embodiment shown is illustrated using the example where the first signal line L1 is a scan line disposed on the same layer as the gate of the driving transistor T0. Optionally, Figure 18The illustrated embodiment is illustrated by taking the first connecting portion 41 or the second connecting portion 42 as an example where the connecting lead L0 connecting the first pixel driving circuit 21 and the second light-emitting element P2 is arranged on the same layer. When the first data signal line DL1 and the second data signal line DL2 are electrically connected through the first connecting portion 41 or the second connecting portion 42, the second connecting portion 42 or the first connecting portion 41 is arranged to overlap with the first signal line L1 along the thickness direction of the display panel. This helps to avoid uneven black states in the display area AA when the first connecting portion 41 or the second connecting portion 42 is introduced into the display area AA, thus affecting the user experience of the display panel. Optionally, the line width of the first connecting portion 41 and the second connecting portion 42 along the second direction D2 is less than or equal to the line width of the first signal line L1 along the second direction D2, and the edges of the first connecting portion 41 and the second connecting portion 42 extending along the first direction D1 do not exceed the edges of the first signal line L1 extending along the first direction D1, thereby further helping to avoid uneven black states when the screen is off.

[0105] Figure 19 The diagram shows another structural schematic of the display panel provided in an embodiment of the present invention. This embodiment illustrates another connection schematic of the first data signal line DL1 and the second data signal line DL2, and shows a scheme in which the first display area AA1 surrounds the optical component area AA2. That is, the optical component area AA2 is provided with first light-emitting elements P1 on both sides along the first direction D1 and on both sides along the second direction D2. In this embodiment, when the portion of the first light-emitting elements P1 above the optical component area AA2, the portion of the second light-emitting elements P2 in the optical component area AA2, and the portion of the first light-emitting elements P1 below the optical component area AA2 are arranged in the same row, the data signal lines connected to the pixel driving circuits corresponding to these three portions of light-emitting elements are electrically connected, and the three data signal lines can share the same data signal terminal.

[0106] Figure 20 The diagram shown is another structural schematic of the display panel provided in an embodiment of the present invention. This embodiment shows a connection schematic of the second light-emitting element P2 and the first pixel driving circuit 21 when a pixel driving unit row is introduced into the display panel.

[0107] In an optional embodiment of the present invention, the pixel driving unit column 10 further includes a third pixel driving unit column 13 located in the first display area AA1. The third pixel driving unit column 13 includes a plurality of (two or more) second pixel driving circuits 24, and the second pixel driving circuits 24 are electrically connected to the first light-emitting element P1.

[0108] The first display area AA1 also includes a plurality of (two or more) rows of pixel driving units arranged along the second direction D2. The rows of pixel driving units include a first row of pixel driving units H1 and a second row of pixel driving units H2. The first row of pixel driving units H1 includes a plurality of (two or more) consecutively arranged second pixel driving circuits 24. The second row of pixel driving units H2 includes a plurality of (two or more) consecutively arranged third dummy pixel driving circuits 33. The first pixel driving circuit 21 and the second light-emitting element P2 are electrically connected through a third connecting part 43. In the thickness direction of the display panel, the third connecting part 43 overlaps with the second row of pixel driving units H2.

[0109] Continue to refer to Figure 20 This embodiment illustrates a scheme for introducing pixel driving unit rows in a display panel. It should be noted that... Figure 20Only a portion of the pixel driving circuitry in the display panel is shown; the entire pixel driving circuitry is not shown. Optionally, at least a portion of the pixel driving unit rows include a first pixel driving circuitry for connection to the second light-emitting element, and at least a portion of the pixel unit rows include a pixel driving circuitry for connection to the first light-emitting element. In this embodiment, the pixel unit rows include a first pixel driving unit row H1 and a second pixel driving unit row H2. The first pixel unit row H1 includes a second pixel driving circuitry 24 for driving the first light-emitting element to emit light. Optionally, at least a portion of the second pixel driving circuitry 24 is continuously arranged in the first pixel unit row H1. Optionally, at least a portion of the first pixel unit row H1 also includes a dummy pixel driving circuitry. The second pixel unit row H2 includes a continuous third dummy pixel driving circuitry 33. Optionally, the second pixel unit row H2 also includes a first pixel driving circuitry 21 for electrical connection to the second light-emitting element P2. In other words, this embodiment introduces a second pixel driving unit row H2 to set up a first pixel driving circuit connected to the second light-emitting element P2. In the manufacturing process of the pixel driving circuit, the pixel driving circuits arranged in rows and columns are usually manufactured simultaneously. At the same time as the first pixel driving circuit is manufactured, the pixel driving circuit connected to the first light-emitting element and the dummy pixel driving circuit are also manufactured. In order to avoid introducing a process of removing unnecessary (e.g., not connected to the light-emitting element) pixel driving circuits, these pixel driving circuits are usually retained as dummy pixel driving circuits, such as the third dummy pixel driving circuit 33 in the second pixel driving unit row H2, which helps to simplify the manufacturing process of the display panel. Furthermore, in this embodiment, when the first pixel driving circuit 21 in the second pixel unit row H2 is electrically connected to the second light-emitting element P2 using the third connecting part 43, the third connecting part 43 is configured to overlap with the second pixel unit row H2 along the thickness direction of the display panel. This ensures that the third connecting part 43 does not occupy other existing space in the display area, but only occupies the space where the newly added second pixel unit row H2 is located. Therefore, it will not affect other circuit structures in the display area. In addition, the method of setting the third connecting part in the second pixel unit row H2 also helps to simplify the wiring process of the third connecting part H2, thus simplifying the overall manufacturing process of the display panel and improving production efficiency. Optionally, the third dummy pixel driving circuit is reused as a repair pixel driving circuit, that is, it is used to replace the operation of the pixel driving circuit corresponding to the first light-emitting element and / or the second light-emitting element when it is in an abnormal working state.

[0110] Figure 21 The diagram shown is a schematic representation of another structure of the display panel provided in an embodiment of the present invention. Please refer to it. Figure 21 In one optional embodiment of the present invention, the pixel driving unit rows are uniformly arranged in the second direction D2.

[0111] Specifically, Figure 21 This diagram illustrates a scheme where multiple (two or more) rows of pixel driving units are uniformly arranged along a second direction D2 when introduced into a display panel. Uniform arrangement of pixel driving unit rows along the second direction D2 means that the spacing between any two adjacent rows of pixel units along the second direction D2 is equal. This arrangement helps ensure the uniformity of the pixel driving circuitry in the display panel, thus preventing uneven black levels in the display area AA when the screen is off, which could be caused by uneven pixel driving circuitry and negatively impact the user experience. Furthermore, uniformly arranging the pixel driving unit rows simplifies the manufacturing process of the pixel driving circuitry and improves the overall production efficiency of the display panel.

[0112] It should be noted that, Figure 20 and Figure 21 The illustrated embodiment shows the relative positional relationship between the pixel driving circuit and the light-emitting element for illustrative purposes only. In the first display area, the pixel driving circuit and the light-emitting element can be represented, for example, in the thickness direction of the display panel as follows: Figure 21 The overlapping structure shown makes efficient use of the display area space. When the two overlap, since the pixel driving circuit is located on the side of the light-emitting element facing the substrate, it does not affect the light emission of the light-emitting element.

[0113] Figure 22 The diagram illustrates a connection between at least two first pixel driving circuits 21 and the same second light-emitting element P2 in a display panel provided by an embodiment of the present invention. In an optional embodiment of the present invention, at least two first pixel driving circuits 21 are electrically connected to the same second light-emitting element P2. Using at least two first pixel driving circuits 21 to drive the same second light-emitting element P2 improves the driving capability of the second light-emitting element P2 and enhances its light-emitting reliability. Furthermore, when one of the first pixel driving circuits 21 connected to the same second light-emitting element P2 is in an abnormal operating state, the other first pixel driving circuits 21 can still drive the second light-emitting element P2 normally, thus ensuring the light-emitting reliability of the second light-emitting element P2.

[0114] It should be noted that, Figure 22 The description only takes the scheme of connecting one second light-emitting element P2 with two first pixel driving circuits 21 as an example, and does not limit the number of first pixel driving circuits 21 actually connected to the same second light-emitting element P2. In some other embodiments of the present invention, the number of first pixel driving circuits 21 connected to the same second light-emitting element P2 may be three or more.

[0115] Based on the same inventive concept, the present invention also provides a display device. Figure 23 The diagram shows a structural schematic of a display device provided in an embodiment of the present invention. The display device 200 includes the display panel 100 provided in any of the above embodiments of the present invention. Optionally, the display device further includes a light-sensing element disposed in the optical component area, such as a camera, an infrared sensing device, a fingerprint recognition device, or other electronic photosensitive device.

[0116] It is understood that the display device 200 provided in the embodiments of the present invention can be other display devices with display functions, such as computers, televisions, and vehicle-mounted display devices, and the present invention does not impose specific limitations on them. The display device provided in the embodiments of the present invention has the beneficial effects of the display panel provided in the embodiments of the present invention. For details, please refer to the specific descriptions of the display panel in the above embodiments, which will not be repeated here.

[0117] In summary, the display panel and display device provided by the present invention achieve at least the following beneficial effects:

[0118] The display panel and display device provided in this embodiment of the invention include a first display area and an optical component area. Optionally, the first display area at least partially surrounds the optical component area, which is used to house electronic photosensitive devices such as cameras, infrared sensors, and fingerprint recognition devices. The first display area has a first light-emitting element, and the optical component area has a second light-emitting element. During the display phase, both the optical component area and the first display area perform display functions, and the second light-emitting element in the optical component area is driven to emit light by a first pixel driving circuit. During the light-sensing phase, the optical component area, as a light-transmitting area, performs a light-sensing function, and the second light-emitting element in the optical component area does not emit light. In particular, this invention places the first pixel driving circuit used to drive the second light-emitting element in the optical component area to emit light in a first pixel driving unit column in the first display area, rather than placing the first pixel driving circuit in the optical component area. This avoids the influence of the first pixel driving circuit on the light transmittance of the optical component area, thus improving the light-sensing performance of the optical component area during the light-sensing phase. Furthermore, the second light-emitting element in the optical component area and the first pixel driving circuit in the first display area are driven by one first pixel driving circuit to drive one second light-emitting element to emit light. Compared with the related technology where one pixel driving circuit drives two or more second light-emitting elements to emit light, the present invention is more conducive to improving the display effect of the optical component area in the display stage and reducing the display brightness difference between the optical component area and the first display area. Therefore, it is beneficial to improve the overall display effect of the display panel and display device and improve the display quality.

[0119] While specific embodiments of the invention have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of the invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A display panel, characterized by, The display panel comprises: a display area comprising a first display area and an optical component area; light emitting elements comprising first light emitting elements and second light emitting elements, the first light emitting elements being located in the first display area, and the second light emitting elements being located in the optical component area; the first display area comprises a plurality of pixel driving unit columns arranged along a first direction, the pixel driving unit columns comprising a first pixel driving unit column, the first pixel driving unit column comprising a plurality of first pixel driving circuits, one of the first pixel driving circuits being electrically connected to one of the second light emitting elements; the pixel driving unit columns further comprise a third pixel driving unit column located in the first display area, the third pixel driving unit column comprising a plurality of second pixel driving circuits, the second pixel driving circuits being electrically connected to the first light emitting elements; the third pixel driving unit column comprises a first sub-third pixel driving unit column, and the display panel further comprises a first non-display area, along a second direction, the first sub-third pixel driving unit column being located between the first non-display area and the optical component area, the second direction intersecting the first direction; the first display area further comprises a plurality of data signal lines, the data signal lines comprising first data signal lines and second data signal lines, the first data signal lines being electrically connected to the first pixel driving circuits, and the second data signal lines being electrically connected to the second pixel driving circuits in the first sub-third pixel driving unit column, the first data signal lines and the second data signal lines being electrically connected through a second connection part; the first display area comprises first signal lines extending along the first direction, the first signal lines comprising at least one of a scan line and a reset signal line; in a thickness direction of the display panel, the second connection part at least partially overlaps the first signal lines.

2. The display panel of claim 1, wherein: along the second direction, a width of the second connection part is less than or equal to a width of the first signal lines.

3. The display panel of claim 1, wherein: along the first direction, an edge of the second connection part does not exceed an edge of the first signal lines.

4. The display panel of claim 1, wherein: the first pixel driving circuits comprise driving transistors, and a gate of the driving transistors is disposed in a same layer as at least one of the first signal lines.

5. The display panel of claim 1, wherein: the first pixel driving circuits and the second light emitting elements are electrically connected through connection leads, and the second connection part is disposed in a same layer as at least one of the connection leads.

6. The display panel of claim 1, wherein: along the second direction, a length of the second data signal lines is greater than a length of the first data signal lines.

7. The display panel of claim 1, wherein: the first data signal lines and the second data signal lines are further electrically connected through a first connection part located in the first non-display area.

8. The display panel of claim 1, wherein: The third pixel driving unit column includes a second sub-third pixel driving unit column, and the second sub-third pixel driving unit column is located on a side of the optical component area away from the first sub-third pixel driving unit column along the second direction. The data line includes a third data signal line, the third data signal line is electrically connected with the second pixel driving circuit in the second sub-third pixel driving unit column, and the first data signal line and the third data signal line are electrically connected through a third connecting part located in the display area.

9. The display panel of claim 1, wherein, Along the first direction, at least one first light emitting element is included between two adjacent first data signal lines.

10. The display panel of claim 1, wherein, The first pixel driving unit column further includes a plurality of first dummy pixel driving circuits.

11. The display panel of claim 10, wherein, The first display area further includes a first dummy data signal line electrically connected with the first dummy pixel driving circuit, the first data signal line is insulated from the first dummy data signal line, and the first dummy data signal line is electrically connected with a fixed voltage signal terminal.

12. The display panel of claim 1, wherein, The pixel driving unit column includes a second pixel driving unit column, and the second pixel driving unit column includes a plurality of second dummy pixel driving circuits. Along the second direction, the second pixel driving unit column is located between the first non-display area and the optical component area, and the second direction intersects the first direction.

13. The display panel of claim 12, wherein, The first display area further includes a second dummy data signal line electrically connected with the second dummy pixel driving circuit, and the second dummy data signal line is electrically connected with a fixed voltage signal terminal.

14. A display device comprising: The display panel of any one of claims 1 to 13.

Images