Display panel and display device

Abstract

The embodiment of the present invention discloses a display panel and a display device, comprising a first display area and a second display area, wherein the second display area comprises a first sub-display area and a second sub-display area, and the transmittance of the second sub-display area is greater than that of the first display area; the first pixel circuit is located in the first display area, and the second pixel circuit is located in the first sub-display area; the first light-emitting repeating unit is located in the first display area and comprises at least one first light-emitting unit; the second light-emitting repeating unit is located in the second display area and comprises at least two second light-emitting units; in the same first light-emitting repeating unit, all first sub-light-emitting elements of at least one color are electrically connected to the same first pixel circuit; in the same second light-emitting repeating unit, all second sub-light-emitting elements of at least one color are electrically connected to the same second pixel circuit. Thus, the transmittance of the second display area is improved, and the split screen phenomenon is improved.

Description

[0001] This application is a divisional application with a filing date of August 28, 2020, application number 202010885970.X, and invention name “A display panel and display device”. Technical Field

[0002] The present invention relates to the field of display technology, and in particular to a display panel and a display device. Background Art

[0003] With the development of display technology, display panels with higher screen-to-body ratios have received more attention. In order to increase the screen-to-body ratio, a high light-transmittance area can be opened in the display area of ​​the display panel to accommodate photosensitive components, such as front cameras, infrared sensing devices, fingerprint recognition devices, etc.

[0004] Since the light-transmitting area in the display area is limited, in order to increase the light transmittance and improve the optical performance of the photosensitive element under the screen, the conventional setting method is to reduce the pixel density in the area where the optical device is located. When the pixel density in the area where the photosensitive element is located is reduced, the brightness of the area will be reduced. As a result, when displaying, there will be a bright line at the junction of the area where the photosensitive element is located and the normal display area, resulting in a split screen and affecting the display effect. Summary of the invention

[0005] In view of this, the present invention provides a display panel and a display device, which are beneficial to improving the light transmittance of the second display area and improving the split screen phenomenon.

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

[0007] a first display area and a second display area, the first display area at least partially surrounding the second display area; the second display area includes a first sub-display area and a second sub-display area, the first sub-display area at least partially surrounding the second sub-display area, and the light transmittance of the second sub-display area is greater than the light transmittance of the first display area;

[0008] a first pixel circuit and a second pixel circuit, wherein the first pixel circuit is located in the first display area, and the second pixel circuit is located in the first sub-display area;

[0009] A first light-emitting repeating unit, the first light-emitting repeating unit is located in the first display area and includes at least one first light-emitting unit, the first light-emitting unit includes at least three first sub-light-emitting elements of different colors;

[0010] A second light-emitting repeating unit, the second light-emitting repeating unit is located in the second display area and includes at least two second light-emitting units, and the second light-emitting unit includes at least three second sub-light-emitting elements of different colors;

[0011] In the same first light-emitting repeating unit, all the first sub-light-emitting elements of at least one same color are electrically connected to the same first pixel circuit; in the same second light-emitting repeating unit, all the second sub-light-emitting elements of at least one same color are electrically connected to the same second pixel circuit.

[0012] On the other hand, the present invention further provides a display device, comprising:

[0013] A display panel as described in the first aspect.

[0014] Compared with the prior art, the display panel and display device provided by the present invention achieve the following beneficial effects: by increasing the number of second light-emitting units in the second display area, the aperture ratio of the first sub-display area and the second sub-display area is improved, thereby avoiding the split screen phenomenon between any two of the first sub-display area, the second sub-display area and the first display area. At the same time, by setting the second pixel circuit in the first sub-display area, the second light-emitting repeating unit located in the second display area is set to include at least two second light-emitting units, the second light-emitting unit includes at least three second sub-light-emitting elements of different colors, and in the same second light-emitting repeating unit, at least one second sub-light-emitting element of the same color is electrically connected to the same second pixel circuit, so that while improving the aperture ratio of the second sub-display area, the transmittance of the second sub-display area can be further improved. In addition, a second pixel circuit is electrically connected to all second light-emitting elements of the same color in the same second light-emitting repeating unit, which can further reduce the number of second pixel circuits in the first sub-display area, improve the light transmittance, reduce the current density of the second sub-light-emitting element, and improve the life of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of a partial structure of a display panel in the prior art;

[0016] Figure 2 It is a partial structural schematic diagram of another display panel in the prior art;

[0017] Figure 3 is a schematic diagram of a planar structure of a display panel provided by an embodiment of the present invention;

[0018] Figure 4 yes Figure 3 A schematic diagram of a structure of the middle area Q1;

[0019] Figure 5 yes Figure 3 Another structural diagram of the middle area Q1;

[0020] Figure 6 is a schematic diagram of a planar structure of another display panel provided by an embodiment of the present invention;

[0021] Figure 7 yes Figure 6 A schematic diagram of a structure of the middle region Q2;

[0022] Figure 8 yes Figure 6 Another structural diagram of the middle area Q2;

[0023] Fig. 9 It is a schematic diagram of a local structure provided by an embodiment of the present invention;

[0024] Fig.10 yes Fig. 9 A schematic diagram of a cross-sectional structure along the AA' direction;

[0025] Fig.11 yes Fig.10 A schematic diagram of a structure of the middle region Q3;

[0026] Fig.12 is another partial structural schematic diagram provided by an embodiment of the present invention;

[0027] Fig.13 It is another partial structural schematic diagram provided by an embodiment of the present invention;

[0028] Fig.14 yes Fig.13 A schematic diagram of a cross-sectional structure along the BB' direction;

[0029] Fig.15 It is another partial structural schematic diagram provided by an embodiment of the present invention;

[0030] Fig.16 yes Fig.15 A schematic diagram of a cross-sectional structure along the CC' direction;

[0031] Fig.17 It is another partial structural schematic diagram provided by an embodiment of the present invention;

[0032] Fig.18 yes Fig.17 A schematic diagram of a cross-sectional structure along the DD' direction;

[0033] Fig.19 yes Figure 6 Another structural diagram of the middle area Q2;

[0034] Fig. 20 yes Figure 6 Another structural diagram of the middle area Q2;

[0035] Fig.21 yes Figure 6 Another structural diagram of the middle area Q2;

[0036] Fig. 22 yes Figure 6 Another structural diagram of the middle area Q2;

[0037] Fig.23 It is another partial structural schematic diagram provided by an embodiment of the present invention;

[0038] Fig.24 yes Fig.23 A schematic diagram of a cross-sectional structure along the EE' direction;

[0039] Fig.25 It is another partial structural schematic diagram provided by an embodiment of the present invention;

[0040] Fig.26 It is a structural schematic diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0041] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0042] It should be understood that the preferred embodiments described below are only used to illustrate and explain the present invention, and are not used to limit the present invention. In addition, the embodiments and features in the embodiments of the present application can be combined with each other if there is no conflict. In addition, the shapes and sizes of the components in the drawings do not reflect the actual proportions, and the purpose is only to illustrate the content of the present invention.

[0043] In order to better understand the above technical scheme, the technical scheme of the present invention is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present invention and the specific features in the embodiments are detailed descriptions of the technical scheme of the present invention, rather than limitations on the technical scheme of the present invention. In the absence of conflict, the embodiments of the present invention and the technical features in the embodiments may be combined with each other.

[0044] Please refer to Figure 1 and Figure 2 , Figure 1 and Figure 2It is a schematic diagram of the partial structure of the display panel in the prior art. The display panel includes a first display area A1' and a second display area A2', the first display area A1' at least partially surrounds the second display area A2', the second display area A2' includes a first sub-display area A21' and a second sub-display area A22', the first sub-display area A21' at least partially surrounds the second sub-display area A22', and the transmittance of the second sub-display area A22' is greater than the transmittance of the first display area A1'. In the direction perpendicular to the light-emitting surface of the display panel, the second display area A2' corresponds to a photosensitive element (such as a front camera, an infrared sensing device, a fingerprint recognition device), wherein the light required by the photosensitive element when working mainly comes from the light transmitted from the second sub-display area A22'. Compared with the first display area A1' (normal display area), in order to improve the transmittance of the second sub-display area A22', the pixel density of the second sub-display area A22' will be reduced (usually one-fourth of the first display area A1'). At the same time, in order to achieve the transition between the first display area A1' and the second sub-display area A22', the pixel density of the first sub-display area A21' will also be reduced, so that a split screen phenomenon will occur between the first display area A1', the first sub-display area A21', and the second sub-display area A22', affecting the user experience.

[0045] In view of this, the present invention provides a display panel and a display device, which are beneficial to improving the light transmittance of the first display area and improving the split screen phenomenon.

[0046] The following is a detailed description with reference to the accompanying drawings and specific embodiments.

[0047] An embodiment of the present invention provides a display panel. Figure 3 is a schematic diagram of a planar structure of a display panel provided by an embodiment of the present invention, Figure 4 yes Figure 3 A schematic diagram of the structure of the middle area Q1. Figure 3 and Figure 4As shown, the display panel includes a first display area A1 and a second display area A2, and the first display area A1 at least partially surrounds the second display area A2. It can be understood that the display panel also includes a non-display area NA surrounding the display area. The second display area A2 includes a first sub-display area A21 and a second sub-display area A22, and the first sub-display area A21 at least partially surrounds the second sub-display area A22, and the transmittance of the second sub-display area A22 is greater than the transmittance of the first display area A1. A first pixel circuit C1 and a second pixel circuit C2, the first pixel circuit C1 is located in the first display area A1, and the second pixel circuit C2 is located in the first sub-display area A21. A first light-emitting repeating unit L1, the first light-emitting repeating unit L1 is located in the first display area A1 and includes at least one first light-emitting unit L11, and the first light-emitting unit L11 includes at least three first sub-light-emitting elements P1 of different colors. A second light-emitting repeating unit L2, the second light-emitting repeating unit L2 is located in the second display area A2 and includes at least two second light-emitting units L0, and the second light-emitting unit L0 includes at least three second sub-light-emitting elements P2 of different colors. In the same first light-emitting repeating unit L1, all first sub-light-emitting elements P1 of at least one same color are electrically connected to the same first pixel circuit C1; in the same second light-emitting repeating unit L2, all second sub-light-emitting elements P2 of at least one same color are electrically connected to the same second pixel circuit C2.

[0048] It is understood that in this embodiment, the first sub-light emitting element P1 and the second sub-light emitting element P2 can be organic light emitting diode (OLED) light emitting elements, that is, the display panel is an OLED display panel. It is understood that the display panel of the embodiment of the present invention can also be other self-luminous display panels that can be driven in an active matrix (AM) manner similar to the OLED display panel.

[0049] It should be noted that, in the present invention, the term "pixel circuit" refers to the smallest repeating unit of the circuit structure that drives the corresponding light-emitting element to emit light, for example, it includes at least two thin-film transistors and at least one capacitor (2T1C circuit, 7T1C circuit).

[0050] In this embodiment, the second sub-display area A22 is provided with a second light-emitting repeating unit L2, and the second sub-display area A22 is not provided with a pixel circuit (that is, the pixel circuits corresponding to the second sub-light-emitting element P2 of the second sub-display area A22 are all provided in the first sub-display area A21), so that the second sub-display area A22 has a higher light transmittance. The second sub-display area A22 can be used for both display and light transmission, so that it can be used as an integrated area of ​​the optical element, wherein the optical element is provided on the non-display surface side of the second sub-display area A22. The orthographic projection of the effective photosensitive surface of the optical element on the display panel is covered by the second sub-display area A22. In some embodiments, the shape of the second sub-display area A22 matches the shape of the effective photosensitive surface of the optical element.

[0051] It can be understood that the first light-emitting unit L11 includes at least three first sub-light-emitting elements P1 of different colors, and the second light-emitting unit L0 includes at least three second sub-light-emitting elements P2 of different colors. The first sub-light-emitting element P1 and the second sub-light-emitting element P2 can emit light of any color of red, green and blue, but are not limited to this in the embodiment of the present invention. For example, the light-emitting element (the first sub-light-emitting element P1, the second sub-light-emitting element P2) can also emit light of any color of cyan, magenta, yellow, white, etc.

[0052] In addition, in the present embodiment, only the outline of the second sub-light-emitting element P2 in the second sub-display area A22 is set to a circle (specifically, the anode of the second sub-light-emitting element P2 can be set to a circle) is used as an example for explanation. This design method can improve the diffraction phenomenon of the second sub-display area A22, thereby further improving the shooting quality of the camera. In actual products, the outline of the second sub-light-emitting element P2 can also be set to other shapes, such as an ellipse, a regular hexagon, a rounded rectangle, etc., and the present invention will not list them exhaustively. It should be noted that in the embodiment of the present invention, only the outline of the second sub-light-emitting element P2 in the first sub-display area A21 and the outline of the second sub-light-emitting element P2 in the second sub-display area A22 are the same as an example for explanation. In actual products, the shapes of the light-emitting elements in these two areas can be the same or different, and the present invention will not go into details.

[0053] It is understandable that, in order to achieve a uniform transition of brightness between the first sub-display area A21 and the second sub-display area A22, the outline of the second sub-light-emitting element P2 in the first sub-display area A21 may also be the same as the outline of the second sub-light-emitting element P2 in the second sub-display area A22. It may also be designed that the area of ​​the second sub-light-emitting element P2 in the first sub-display area A21 is smaller than the area of ​​the second sub-light-emitting element P2 in the second sub-display area A22. In order to achieve a uniform transition of brightness between the first display area A1 and the first sub-display area A21 (or the second sub-display area A22), the size of the first pixel circuit C1 of the first display area A1 close to the first sub-display area A21 (or the second sub-display area A22) and the area of ​​the first sub-light-emitting element P1 may be appropriately adjusted, such as a gradient design, which will not be described in detail in the present invention.

[0054] It should be noted that Figure 4 The first sub-light emitting element P1 and the second sub-light emitting element P2 are filled with different patterns, mainly to reflect that different light emitting elements emit light of different colors, so as to explain the main inventive points of the present invention.

[0055] In the embodiment of the present invention, the first display area A1 completely surrounds the second display area A2, that is, the first display area A1 completely surrounds the first sub-display area A21, and the first sub-display area A21 completely surrounds the second sub-display area A22. The shapes of the first display area A1, the first sub-display area A21, and the second sub-display area A22 can be regular or irregular, and the number of the second display areas A2 can be one or more, which is not specifically limited in the present invention.

[0056] It should be noted that, in the embodiment of the present invention, only the first light-emitting repetition unit L1 includes a first light-emitting unit L11, and the first light-emitting unit L11 includes three first sub-light-emitting elements P1 of different colors is used for explanation. In this way, in the same first light-emitting repetition unit L1, there is one first sub-light-emitting element P1 of one color, and it is electrically connected to one first pixel circuit C1; that is, one first pixel circuit C1 is electrically connected to one first sub-light-emitting element P1 of one color. In the embodiment of the present invention, the second light-emitting repetition unit L2 includes two second light-emitting units L0, and the second light-emitting unit L0 includes three second sub-light-emitting elements P2 of different colors is used for explanation. Compared with the prior art ( Figure 1 and Figure 2 ) compared to the embodiments provided by the present invention (such as Figure 4 ), the number of the second sub-light emitting elements P2 in the first sub-display area A21 and the second sub-display area A22 is increased, which is equivalent to increasing the number of light emitting points in the first sub-display area A21 and the second sub-display area A22 (if Figure 1 and Figure 2The number of light-emitting points per unit area in the second display area A2' is a, then Figure 4 The number of light-emitting points per unit area in the second display area A2' is 2a), the aperture ratio of the first sub-display area A21 and the second sub-display area A22 is increased, and the brightness is further increased, and the split screen phenomenon between any two of the first sub-display area A21, the second sub-display area A22 and the first display area A1 is avoided. At the same time, the second pixel circuit C2 electrically connected to the second sub-light-emitting element P2 in the second sub-display area A22 is arranged in the first sub-display area A21, which can improve the aperture ratio of the second sub-display area A22 while avoiding the reduction of transmittance due to the arrangement of the pixel circuit in this area, thereby avoiding the influence on the transmittance of the second sub-display area A22 as much as possible. In addition, a second pixel circuit C2 is electrically connected to all second light-emitting elements P2 of the same color in the same second light-emitting repetitive unit L2, which can further reduce the number of second pixel circuits C2 in the first sub-display area A21 and improve light transmittance; at the same time, multiple second light-emitting elements P2 of the same color are electrically connected to the same second pixel circuit C2, which can increase the light-emitting area of ​​the second light-emitting element P2 electrically connected to a second pixel circuit C2. When displaying the same brightness, the current density of the second light-emitting element P2 can be reduced, thereby improving the life of the display panel.

[0057] In order to further improve the split-screen phenomenon between the first display area A1 and the first sub-display area A21 (or the second sub-display area A22), in the same first light-emitting repetitive unit L1, all first sub-light-emitting elements P1 of at least one same color are electrically connected to the same first pixel circuit C1, which can weaken the brightness difference between the first display area A1 and the first sub-display area A21 (or the second sub-display area A22) and improve the life of the display panel.

[0058] In some optional embodiments, reference Figure 5 , Figure 5 yes Figure 3Another structural schematic diagram of the middle area Q1. The second pixel circuit C2 includes a first sub-pixel circuit C21 and a second sub-pixel circuit C22, and the first sub-pixel circuit C21 and the second sub-pixel circuit C22 are both located in the first sub-display area A21. The second light-emitting repeating unit L2 includes a first sub-light-emitting repeating unit L21 and a second sub-light-emitting repeating unit L22, and the first sub-light-emitting repeating unit L21 is located in the first sub-display area A21, and the second sub-light-emitting repeating unit L22 is located in the second sub-display area A22, and the first sub-light-emitting repeating unit L21 and the second sub-light-emitting repeating unit L22 each include at least two second light-emitting units L0. In the same first sub-light-emitting repeating unit L21, all second sub-light-emitting elements P2 of at least one same color are electrically connected to the same first sub-pixel circuit C21; in the same second sub-light-emitting repeating unit L22, all second sub-light-emitting elements P2 of at least one same color are electrically connected to the same second sub-pixel circuit C22.

[0059] It should be noted that, for the convenience of description, in this embodiment, the first pixel circuit C1 , the first sub-pixel circuit C21 , and the second sub-pixel circuit C22 are filled with different patterns, which is not intended to limit their specific features.

[0060] In the embodiment of the present invention, the second light emitting unit L0 includes three second sub-light emitting elements P2 of different colors, which are respectively the first color (grid pattern filling), the second color (oblique line pattern filling), and the third color (dot pattern filling).

[0061] In the embodiment of the present invention, the first sub-light-emitting repeating unit L21 includes two second light-emitting units L0, and in the same first sub-light-emitting repeating unit L21, all the second sub-light-emitting elements P2 of the first color (two in total) are electrically connected to the same first sub-pixel circuit C21, and all the second sub-light-emitting elements P2 of the third color (two in total) are electrically connected to the same first sub-pixel circuit C21; the two second sub-light-emitting elements P2 of the second color are electrically connected to the two first sub-pixel circuits C21 in a one-to-one correspondence. The second sub-light-emitting repeating unit L22 includes two second light-emitting units L0, and in the same second sub-light-emitting repeating unit L22, all the second sub-light-emitting elements P2 of the first color (two in total) are electrically connected to the same second sub-pixel circuit C22, and all the second sub-light-emitting elements P2 of the third color (two in total) are electrically connected to the same second sub-pixel circuit C22; the two second sub-light-emitting elements P2 of the second color are electrically connected to the two second sub-pixel circuits C22 in a one-to-one correspondence.

[0062] During actual display, a first sub-pixel circuit C21 (or a second sub-pixel circuit C22) can control two second sub-light-emitting elements P2 of the first color to light up or turn off at the same time, or control two second sub-light-emitting elements P2 of the third color to light up or turn off at the same time, or control a second sub-light-emitting element P2 of the second color to light up or turn off. For the first sub-display area A21 and the second sub-display area A22, sub-pixel rendering (Sub Pixel Rendering, SPR) / sub-pixel borrowing can be used for driving. For the partial area of ​​the first display area A1 close to the second display area A2, SPR can also be used for driving.

[0063] In the embodiment of the present invention, in the same second sub-light-emitting repeating unit L22, all second sub-light-emitting elements P2 of at least one same color are electrically connected to the same second sub-pixel circuit C22, and the second sub-pixel circuit C22 is located in the first sub-display area A21, which can improve the aperture ratio of the second sub-display area A22, increase the light-emitting area of ​​the second sub-light-emitting element P2, and improve the display brightness of the second sub-display area A22; at the same time, the setting mode of electrically connecting a second sub-pixel circuit C22 to multiple second sub-light-emitting elements P2 can avoid the same number of second sub-pixel circuits C22 from increasing the light-emitting points while avoiding too many second sub-pixel circuits C22 from being set in the first sub-display area A21, thereby reducing the impact on the transmittance of the display panel. In addition, multiple second light-emitting elements P2 of the same color are electrically connected to the same second sub-pixel circuit C22, and when displaying the same brightness, the current density of the second light-emitting element P2 can be reduced, thereby increasing the life of the display panel.

[0064] In the embodiment of the present invention, in the same first sub-light-emitting repeating unit L21, all the second sub-light-emitting elements P2 of at least one color are electrically connected to the same first sub-pixel circuit C21, which can improve the aperture ratio of the first sub-display area A21, increase the light-emitting area of ​​the second sub-light-emitting element P2, and improve the display brightness of the first sub-display area A21; at the same time, the setting mode of electrically connecting a first sub-pixel circuit C21 to multiple second sub-light-emitting elements P2 can avoid the same increase in the number of first sub-pixel circuits C21 while increasing the light-emitting points, avoid setting too many first sub-pixel circuits C21 in the first sub-display area A21, and reserve more space for the setting of the second sub-pixel circuit C22, thereby reducing the impact on the transmittance of the display panel. In addition, when multiple second light-emitting elements P2 of the same color are electrically connected to the same first sub-pixel circuit C21, when displaying the same brightness, the current density of the second light-emitting element P2 can be reduced, thereby improving the life of the display panel.

[0065] In some optional embodiments, reference Figure 6 and Figure 7 , Figure 6is a schematic diagram of a planar structure of another display panel provided by an embodiment of the present invention; Figure 7 yes Figure 6 A structural diagram of the middle area Q2. The first sub-display area A21 and the second sub-display area A22 are arranged along the first direction X; the first sub-light-emitting repeating unit L21 includes at least two second light-emitting units L0 arranged along the first direction X or the second direction Y; the second sub-light-emitting repeating unit L22 includes at least two second light-emitting units L0 arranged along the first direction X or the second direction Y, and the first direction X and the second direction Y intersect.

[0066] It should be noted that the display panel includes a plurality of data lines, scan lines, reference voltage signal lines, etc. The first direction X may be the extension direction of the scan lines, etc., and the second direction Y may be the extension direction of the data lines, or vice versa.

[0067] Specifically, Figure 6 As shown, the first sub-display area A21 partially surrounds the second sub-display area A22, that is, the display panel includes two first sub-display areas A21 and one second sub-display area, and the two first sub-display areas A21 are respectively located on both sides of the second sub-display area A22 along the first direction X. The first display area A1 has a boundary with the first sub-display area A21 and the second sub-display area A22. Figure 7 As shown, the first sub-light-emitting repeating unit L21 includes three second light-emitting units L0 arranged along the second direction Y, and the second sub-light-emitting repeating unit L22 includes two second light-emitting units L0 arranged along the second direction Y. Figure 8 As shown, the first sub-light-emitting repeating unit L21 includes three second light-emitting units L0 arranged along the first direction X, and the second sub-light-emitting repeating unit L22 includes four second light-emitting units L0 arranged along the first direction X.

[0068] It is understandable that the number of second light-emitting units L0 included in the first sub-light-emitting repeating unit L21 and the second sub-light-emitting repeating unit L22 can be the same or different. The specific number can be designed after comprehensively considering various factors such as the transmittance and aperture ratio of the display panel, and the present invention will not enumerate them in detail.

[0069] In the embodiment of the present invention, by setting the first sub-light-emitting repeating unit L21 (or the second sub-light-emitting repeating unit L22) to include at least two second light-emitting units L0 arranged along the first direction X or the second direction Y, the space of the display panel can be reasonably utilized, the number of light-emitting elements P2 in the first sub-display area A21 and the second sub-display area A22 can be increased, the aperture ratio of the second sub-display area A2 is improved, the split-screen phenomenon is improved, and at the same time the current density of the second light-emitting element P2 is reduced, thereby increasing the life of the display panel.

[0070] In some optional embodiments, reference Figure 4 , Figure 5 , Figure 7 and Figure 8 , the second light-emitting unit L0 includes three second sub-light-emitting elements P2 of different colors, namely, a first color sub-light-emitting element P21, a second color sub-light-emitting element P22, and a third color sub-light-emitting element P23. In the same first sub-light-emitting repeating unit L21, all first color sub-light-emitting elements P21 are electrically connected to the same first sub-pixel circuit C21; all second color sub-light-emitting elements P22 are electrically connected to the same first sub-pixel circuit C21, or, the second color sub-light-emitting elements P22 are electrically connected to the first sub-pixel circuit C21 in a one-to-one correspondence; all third color sub-light-emitting elements P23 are electrically connected to the same first sub-pixel circuit C21, or, the third color sub-light-emitting elements P23 are electrically connected to the first sub-pixel circuit C21 in a one-to-one correspondence. In the same second sub-light-emitting repeating unit L22, all first color sub-light-emitting elements P21 are electrically connected to the same second sub-pixel circuit C22; all second color sub-light-emitting elements P22 are electrically connected to the same second sub-pixel circuit C22, or the second color sub-light-emitting elements P22 are electrically connected to the second sub-pixel circuit C22 in a one-to-one correspondence; all third color sub-light-emitting elements P23 are electrically connected to the same second sub-pixel circuit C22, or the third color sub-light-emitting elements P23 are electrically connected to the second sub-pixel circuit C22 in a one-to-one correspondence.

[0071] Specifically, Figure 4 , Figure 7 and Figure 8As shown, in the same first sub-light-emitting repeating unit L21, all first-color sub-light-emitting elements P21 are electrically connected to the same first sub-pixel circuit C21, all second-color sub-light-emitting elements P22 are electrically connected to the same first sub-pixel circuit C21, and all third-color sub-light-emitting elements P23 are electrically connected to the same first sub-pixel circuit C21. In the same second sub-light-emitting repeating unit L22, all first-color sub-light-emitting elements P21 are electrically connected to the same second sub-pixel circuit C22, all second-color sub-light-emitting elements P22 are electrically connected to the same second sub-pixel circuit C22, and all third-color sub-light-emitting elements P23 are electrically connected to the same second sub-pixel circuit C22. This design method can minimize the number of required first sub-pixel circuits C21 and second sub-pixel circuits C22 for the same first sub-light-emitting repeating unit L21 and the same second sub-light-emitting repeating unit L22, thereby increasing the number of second sub-light-emitting elements P2 in the second display area A2 and improving the brightness of the second display area A2, while not increasing the total number of pixel circuits in the first sub-display area A21 (the sum of the number of first sub-pixel circuits C21 and second sub-pixel circuits C22). Moreover, when one first sub-pixel circuit C21 or second sub-pixel circuit C22 is connected to m1 (m1≥4) second sub-light-emitting elements P2, compared with the prior art, the total number of pixel circuits in the first sub-display area A21 can be reduced, thereby making the first sub-display area A21 have a higher transmittance.

[0072] Specifically, Figure 5 As shown, in the same first sub-light-emitting repeating unit L21, all first-color sub-light-emitting elements P21 are electrically connected to the same first sub-pixel circuit C21, the second-color sub-light-emitting elements P22 are electrically connected to the first sub-pixel circuit C21 in a one-to-one correspondence, and all third-color sub-light-emitting elements P23 are electrically connected to the same first sub-pixel circuit C21. In the same second sub-light-emitting repeating unit L22, all first-color sub-light-emitting elements P21 are electrically connected to the same second sub-pixel circuit C22, the second-color sub-light-emitting elements P22 are electrically connected to the second sub-pixel circuit C22 in a one-to-one correspondence, and all third-color sub-light-emitting elements P23 are electrically connected to the same second sub-pixel circuit C22. In this design, a first sub-pixel circuit C21 or a second sub-pixel circuit C22 is electrically connected to a corresponding second color sub-light-emitting element P22, which can increase the number of second sub-light-emitting elements P2 in the second display area A2 and improve the brightness of the second display area A2. At the same time, when displaying a second color pure color image, the resolution (Pixels Per Inch, PPI) of the second color sub-light-emitting element P22 can be increased to improve the display effect.

[0073] It can be understood that in some optional embodiments, a first sub-pixel circuit C21 or a second sub-pixel circuit C22 can be electrically connected to a third-color sub-light-emitting element P23, thereby improving the resolution of the display panel corresponding to the third-color sub-light-emitting element P23 when displaying a third-color pure color image, thereby improving the display effect.

[0074] Taking the second sub-light-emitting repeating unit L22 as an example, the corresponding relationship between the light-emitting element and the pixel circuit is further explained. When the second sub-light-emitting repeating unit L22 includes n1 (n1≥3) second light-emitting units L0, and the second light-emitting unit L0 includes n2 (n2≥3) second sub-light-emitting elements P2 of different colors, in the same second sub-light-emitting repeating unit L22, the second sub-light-emitting elements P2 of the same color (taking the second color sub-light-emitting element P22 as an example) include n1×n2, and the n1×n2 second color sub-light-emitting elements P22 can be electrically connected to the n1×n2 second sub-pixel circuits C22 in a one-to-one correspondence, or every n3 (n3≥2) second color sub-light-emitting elements P22 can be electrically connected to the same second sub-pixel circuit C22, and the remaining second color sub-light-emitting elements P22 are electrically connected to the second sub-pixel circuit C22 in a one-to-one correspondence, and n3<n1×n2. In actual design, the number of second color sub-light emitting elements P22 controlled by a second sub-pixel circuit C22 can be designed after comprehensively considering various factors such as the transmittance and aperture ratio of the display panel, which will not be described in detail in this embodiment.

[0075] In some optional embodiments, the first color sub-light emitting element P21 is a red sub-light emitting element, the second color sub-light emitting element P22 is a green sub-light emitting element, and the third color sub-light emitting element P23 is a blue sub-light emitting element.

[0076] It can be understood that in practical applications, for the same second light-emitting unit L0 or first light-emitting unit L11, the area of ​​the blue sub-light-emitting element can be designed to be the largest, the light-emitting area of ​​the red sub-light-emitting element can be second, and the light-emitting area of ​​the green sub-light-emitting element can be the smallest; or the light-emitting area of ​​the green sub-light-emitting element can be second, and the light-emitting area of ​​the red sub-light-emitting element can be the smallest.

[0077] For the light-emitting units in different areas, the light-emitting area of ​​the first light-emitting unit L11 in the first display area A1 (the sum of the light-emitting areas of all the first sub-light-emitting elements P1 included therein) can be recorded as S1, the light-emitting area of ​​the second light-emitting unit L0 in the first sub-display area A21 (the sum of the light-emitting areas of all the second sub-light-emitting elements P2 included therein) can be recorded as S2, and the light-emitting area of ​​the second light-emitting unit L0 in the second sub-display area A22 can be recorded as S3, wherein S1≥S2≥S3. Further, S1, S2, and S3 can be designed as gradual values, such as gradually increasing or decreasing along the direction from the first display area A1 to the first sub-display area A21 and simultaneously to the second sub-display area A22, so as to achieve a uniform transition of brightness at the junction of the first sub-display area A21, the second sub-display area A22, and the first display area A1, further improving the split-screen phenomenon at the junction of different areas and improving the display effect.

[0078] In some optional embodiments, reference Figure 9-11 , Fig. 9 is a schematic diagram of a local structure provided by an embodiment of the present invention, Fig.10 yes Fig. 9 A schematic diagram of a cross-sectional structure along the AA' direction and the BB' direction, Fig.11 yes Fig.10 A schematic diagram of a structure of the middle region Q3. The second sub-light emitting element P2 includes a first electrode 131, a light emitting structure 132 and a second electrode 133. The first electrode 131 of the adjacent second sub-light emitting element P2 electrically connected to the same second sub-pixel circuit C22 is electrically connected through a first connecting wire W1, and the first connecting wire W1 is a transparent wire.

[0079] This embodiment is described by taking the second sub-light-emitting element P2 of the second sub-display area A22 as an example. Since the second sub-display area A22 in the second display area A2 mainly corresponds to the photosensitive element (such as the front camera, the infrared sensing device, the fingerprint recognition device), the light required by the photosensitive element when working mainly comes from the light transmitted from the second sub-display area A22. By electrically connecting the first electrodes 131 of the adjacent second sub-light-emitting elements P2 electrically connected to the same second sub-pixel circuit C22 in the second sub-display area A22 through the transparent first connecting line W1, the light transmittance of the second sub-display area A22 can be further improved. In addition, the transparent first connecting line W1 can be designed as a curve (arc or wavy line) to avoid the second sub-display area A22 from having a straight edge boundary (or a straight edge gap), which can greatly reduce the diffraction degree of the second sub-display area A22, thereby reducing the influence of the diffraction phenomenon on the picture taken by the camera, thereby helping to improve the clarity of the captured picture and improve the captured picture quality.

[0080] In some optional embodiments, reference Figure 10-11The display panel includes a substrate 10, a thin film transistor array layer 11 located on one side of the substrate 10, and an organic light-emitting device layer 13 located on the side of the thin film transistor array layer 11 away from the substrate 10. The substrate 10 can be a rigid substrate (such as a glass substrate) or a flexible substrate substrate (such as a substrate substrate formed by polyimide and an organic film layer or an inorganic film layer). The thin film transistor array layer 11 includes an active layer 111, a gate insulating layer 112, a first metal layer 113, a first interlayer insulating layer 114 and a second metal layer 115; the organic light-emitting device layer 13 includes an anode layer 131, a light-emitting layer 132 and a cathode layer 133; the display panel also includes a planarization layer 12 located between the second metal layer 115 and the anode layer 131, and a pixel definition layer PDL (pixel definition layer) located on the side of the anode layer 131 away from the substrate 10.

[0081] It is understood that the display panel may further include a capacitor metal layer ( Fig.10 ), and an insulating layer ( Fig.10 not shown).

[0082] It can be understood that the thin film transistor array layer 11 includes a plurality of thin film transistors T, and the thin film transistor T includes an active portion Tp located in the active layer 111, a gate Tg located in the first metal layer 113, and a source Ts and a drain Td located in the second metal layer 115. In addition, the present invention only takes the case where the gate Tg is located on the side of the edge portion away from the base substrate 10 (i.e., a top gate structure) as an example for explanation, and in actual products, it can also be designed as a bottom gate structure.

[0083] It should be noted that Fig.10 The film layer structure shown in FIG. 1 only shows a driving transistor T0 in the second sub-pixel circuit C22 (which may be a 2T1C circuit or a 7T1C circuit). During the display process, the driving transistor T0 in the second sub-pixel circuit C22 is turned on, and the driving signal is transmitted to the second sub-light emitting element P2, driving the second sub-light emitting element P2 to emit light.

[0084] In some optional embodiments, the first connecting wire W1 can be made of transparent materials such as indium tin oxide (ITO) or indium zinc oxide (IZO). Figure 9-11The first electrode 131 is the anode of the second sub-light emitting element P2, and is generally composed of a first conductive layer 1311, a second conductive layer 1312, and a third conductive layer 1313, wherein the materials of the first conductive layer 1311 and the third conductive layer 1313 may be ITO, and the material of the second conductive layer 1312 may be Ag. In the embodiment of the present invention, by reusing the first conductive layer 1311 (ITO) of the first electrode 131 (anode) as the first connecting line W1, the number of film layers and the corresponding number of masks can be reduced, the difficulty of the manufacturing process of the display panel is reduced, the manufacturing efficiency of the display panel is improved, and the display panel can be made thinner and lighter.

[0085] In some optional embodiments, continue to refer to Figure 9-10 , the second sub-light emitting element P2 electrically connected to the same second sub-pixel circuit C22 is electrically connected to the second sub-pixel circuit C22 through the first auxiliary wire F1. The material of the first auxiliary wire F1 can be metal, and the second metal layer 115 is reused. The second metal layer 115 (such as three layers of molybdenum-aluminum-molybdenum, titanium-aluminum-titanium, etc., or a single layer or multiple layers composed of other metals) has better conductivity, can improve signal transmission efficiency, and enhance display effect.

[0086] In some optional embodiments, reference Fig.12 , Fig.12 It is another partial structural schematic diagram provided by an embodiment of the present invention. The first auxiliary conductor F1 includes a first sub-auxiliary conductor F11 and a second sub-auxiliary conductor F12. The first sub-auxiliary conductor F11 is located in the first sub-display area A21, and the second sub-auxiliary conductor F12 is located in the second sub-display area A22. The first sub-auxiliary conductor F11 can be made of metal, and the second sub-auxiliary conductor F12 can be a transparent wire (such as ITO, IZO). By setting the first sub-auxiliary conductor F11 located in the first sub-display area A21 as a metal wire and the second sub-auxiliary conductor F12 located in the second sub-display area A22 as a transparent wire, the light transmittance and signal transmission performance of the second sub-display area A22 can be taken into account, so as to achieve the normal operation and normal display of the photosensitive element in this area.

[0087] In some optional embodiments, reference Figure 13-14 , Fig.13 It is another partial structural schematic diagram provided by an embodiment of the present invention; Fig.14 yes Fig.13 A schematic cross-sectional structure diagram along the BB' direction in FIG. The first electrodes 131 of the adjacent second sub-light emitting elements P2 electrically connected to the same first sub-pixel C11 are electrically connected via the second connection wire W2, which is a metal wiring.

[0088] It can be understood that the same reference numerals represent the same or similar structures, and the present invention will not be described in detail.

[0089] Since the transmittance requirement of the first sub-display area A21 is not as high as that of the second sub-display area A22, a second connecting line W2 made of metal material can be used in the first sub-display area A21 to connect the first electrodes 131 of adjacent second sub-light-emitting elements P2, thereby improving the signal transmission performance of this area.

[0090] In some optional embodiments, reference Fig.15 and Fig.16 , Fig.15 is another partial structural diagram provided by an embodiment of the present invention, Fig.16 yes Fig.15 A schematic cross-sectional structure diagram along CC' direction in FIG. In a direction perpendicular to the light emitting surface of the display panel, the second sub-pixel circuit C22 at least partially overlaps with the second sub-light emitting element P2.

[0091] The second sub-light-emitting element P2 includes a first electrode 131, and the first electrode 131 is generally an opaque structure. In the embodiment of the present invention, by arranging the second sub-pixel circuit C22 located in the first sub-display area A21 to overlap with the second sub-light-emitting element P2 (the pixel circuit electrically connected to the second sub-light-emitting element P2 is the first sub-pixel circuit C21), the film layer and space of the display panel can be fully utilized, so that more second sub-light-emitting elements P2 can be arranged in the first sub-display area A21 and the second sub-display area A22, thereby increasing the light-emitting area (aperture ratio) or PPI of the area, achieving a uniform brightness transition at the junction of the first sub-display area A21, the second sub-display area A22 and the first display area A1, further improving the split-screen phenomenon at the junction of different areas, and enhancing the display effect.

[0092] In some optional embodiments, reference Fig.17 and Fig.18 , Fig.17 is another partial structural diagram provided by an embodiment of the present invention, Fig.18 yes Fig.17 Schematic diagram of a cross-sectional structure along the DD' direction.

[0093] The display panel also includes a capacitor metal layer 17 and a second interlayer insulating layer 117 disposed between the capacitor metal layer 17 and the first metal layer 113. The capacitor metal layer 17 is used to form a capacitor in the pixel circuit with the first metal layer 113, so as to achieve the effect of storing charge or stabilizing node voltage. The display panel also includes a third metal layer 18, which can be used to set a power supply voltage signal line (PVDD). The display panel also includes a first connection layer 19 and a second connection layer 20, as well as an insulating layer 118 (which can be an organic material) and an insulating layer 119 (which can be an organic material) for achieving electrical insulation between film layers.

[0094] It is understandable that the first connecting line W1 can still reuse the first conductive layer (ITO material) of the first electrode 131 of the second sub-light-emitting element P2. The first connecting layer 19 and the second connecting layer 20 can be made of metal material, or transparent material such as ITO, or the part located in the second sub-display area A22 can be made of transparent material such as ITO, and the part located in the first sub-display area A21 can be made of metal material. In actual products, the materials of the first connecting layer 19 and the second connecting layer 20 can be reasonably selected after comprehensively considering multiple factors such as transmittance, process difficulty, number of masks, PPI of different display areas, etc.

[0095] In the embodiment of the present invention, by respectively arranging the first auxiliary wires F1 in the first connection layer 19 and the second connection layer 20, different first auxiliary wires F1 at least partially overlap in the direction perpendicular to the plane where the base substrate 10 (or the light emitting surface of the display panel) is located, so that more second sub-light-emitting elements P2 can be arranged, thereby improving the PPI of the area without having a significant impact on the transmittance of the second sub-display area A22, further improving the split-screen phenomenon at the junction of different areas, and enhancing the display effect.

[0096] It is understandable that the display panel may further be provided with more connection layers for arranging the first auxiliary wires F1 according to actual needs to improve the light transmittance and PPI, which will not be elaborated in the present invention.

[0097] In some optional embodiments, reference Fig.19 , Fig.19 yes Figure 6 Another structural diagram of the middle area Q2. The second pixel circuit C2 also includes a third sub-pixel circuit C23, and the third sub-pixel circuit C23 is located in the first sub-display area A21; the second light-emitting repeating unit L2 also includes a third sub-light-emitting repeating unit L23, and the third sub-light-emitting repeating unit L23 includes a first unit L231 and a second unit L232, the first unit L231 is located in the first sub-display area A21, the second unit L232 is located in the second sub-display area A22, and the first unit L231 includes at least one second light-emitting unit L0, and the second unit L232 includes at least one second light-emitting unit L0. In the same third sub-light-emitting repeating unit L23, all second sub-light-emitting elements P2 of at least one same color are electrically connected to the same third sub-pixel circuit C23.

[0098] It can be understood that, in this embodiment, the first unit L231 includes four second light-emitting units L0, the second unit L232 includes four second light-emitting units L0, and the second light-emitting unit L0 includes three second sub-light-emitting elements P2 of different colors.

[0099] In the embodiment of the present invention, among the multiple second sub-light-emitting elements P2 belonging to the same third sub-light-emitting repeating unit L23, all the second sub-light-emitting elements P2 of at least one same color are electrically connected to the same third sub-pixel circuit C23; it is possible to improve the aperture ratio of the second sub-display area A22 while avoiding setting too many pixel circuits in the second sub-display area A22. In addition, when multiple second light-emitting elements P2 of the same color are electrically connected to the same third sub-pixel circuit C23, the current density of the second light-emitting element P2 can be reduced when displaying the same brightness, thereby increasing the life of the display panel.

[0100] In the embodiment of the present invention, the first unit L231 and the second unit L232 belonging to the same third sub-light-emitting repeating unit L23 are respectively located in the first sub-display area A21 and the second sub-display area A22, that is, the third sub-light-emitting repeating unit L23 crosses the boundary line (a virtual line that does not actually exist in the panel, but can be determined according to the actual design of the display panel) of the first sub-display area A21 and the second sub-display area A22; when displaying, a plurality of second light-emitting elements P2 of the same color electrically connected to the same third sub-pixel circuit C23 can be turned on or off at the same time, thereby weakening the brightness difference at the junction of the first sub-display area A21 and the second sub-display area A22, further improving the split-screen phenomenon, and enhancing the display effect.

[0101] In some optional embodiments, the first unit L231 and the second unit L232 of the same third sub-light-emitting repeating unit L23 are arranged along the first direction X; the first unit L231 includes at least two of the second light-emitting units L0 arranged along the second direction Y, and the second unit L232 includes at least two second light-emitting units L0 arranged along the second direction Y, and the first direction X and the second direction Y intersect.

[0102] It can be understood that in this embodiment, the first unit L231 includes two second light-emitting units L0 arranged along the second direction Y, the second unit L232 includes two second light-emitting units L0 arranged along the second direction Y, and the second light-emitting unit L0 includes three second sub-light-emitting elements P2 of different colors.

[0103] It is understandable that the number of second light-emitting units L0 included in the first unit L231 and the second unit L232 can be the same or different, and the specific number can be designed after comprehensively considering various factors such as the transmittance and aperture ratio of the display panel, and the present invention will not enumerate them exhaustively.

[0104] In the embodiment of the present invention, by setting the first unit L231 and the second unit L232 to include at least two second light-emitting units L0 arranged along the first direction X or the second direction Y, the space of the display panel can be reasonably utilized, the number of light-emitting elements P2 in the first sub-display area A21 and the second sub-display area A22 can be increased, the aperture ratio of the second sub-display area A2 can be improved, and at the same time the current density of the second light-emitting element P2 can be reduced, thereby improving the life of the display panel.

[0105] In some optional embodiments, the number of second light-emitting units L0 included in the first sub-light-emitting repeating unit L21, the second sub-light-emitting repeating unit L22 and the third sub-light-emitting repeating unit L23 and the arrangement of the second light-emitting units L0 may be completely the same (e.g. Fig. 20 As shown, Fig. 20 yes Figure 6 Another structural diagram of the middle region Q2), which may not be exactly the same (such as Fig.21 As shown, Fig.21 yes Figure 6 The plurality of third sub-light emitting repeating units L23 may also be configured to include second light emitting units L0 of different numbers or arrangements. The second light emitting units L0 located at the junction of the first sub-display area A21 and the second sub-display area A22 may all constitute the third sub-light emitting repeating unit L23 (e.g. Fig. 20 As shown), only part of the second light-emitting units L0 may constitute the third sub-light-emitting repeating unit L23 (as shown Fig.21 As shown). It can be understood that the first sub-light-emitting repeating unit L21, the second sub-light-emitting repeating unit L22 and the third sub-light-emitting repeating unit L23 are designed differently, which can further weaken the split screen phenomenon between the first sub-display area A21 and the second sub-display area A22 during display, thereby improving the display effect.

[0106] In some optional embodiments, reference Figure 19-22 , Fig. 22 yes Figure 6 Another structural diagram of the middle area Q2. The second light-emitting unit L0 includes three second sub-light-emitting elements P2 of different colors, namely, a first color sub-light-emitting element P21, a second color sub-light-emitting element P22, and a third color sub-light-emitting element P23. In the same third sub-light-emitting repeating unit L23, all first color sub-light-emitting elements P21 are electrically connected to the same third sub-pixel circuit C23; all second color sub-light-emitting elements P22 are electrically connected to the same third sub-pixel circuit C23, or, the second color sub-light-emitting elements P22 are electrically connected to the third sub-pixel circuit C23 in a one-to-one correspondence; all third color sub-light-emitting elements P23 are electrically connected to the same third sub-pixel circuit C23, or, the third color sub-light-emitting elements P23 are electrically connected to the third sub-pixel circuit C23 in a one-to-one correspondence.

[0107] refer to Figure 19-21 In the same third sub-light-emitting repeating unit L23, all first color sub-light-emitting elements P21 are electrically connected to the same third sub-pixel circuit C23, all second color sub-light-emitting elements P22 are electrically connected to the same third sub-pixel circuit C23, and all third color sub-light-emitting elements P23 are electrically connected to the same third sub-pixel circuit C23. This design method can minimize the number of required third sub-pixel circuits C23 for the same third sub-light-emitting repeating unit L23, thereby increasing the number of second sub-light-emitting elements P2 in the second display area A2 and improving the brightness of the second display area A2 compared to the prior art, while not increasing the total number of pixel circuits in the first sub-display area A21 (the sum of the number of first sub-pixel circuits C21, second sub-pixel circuits C22, and third sub-pixel circuits C23). Moreover, when a first sub-pixel circuit C21, a second sub-pixel circuit C22 or a third sub-pixel circuit C23 is correspondingly connected to m2 (m2≥4) second sub-light-emitting elements P2, compared with the prior art, the total number of pixel circuits in the first sub-display area A21 can be reduced, thereby making the first sub-display area A21 have a higher transmittance.

[0108] refer to Fig. 22 In the same third sub-light-emitting repeating unit L23, all first color sub-light-emitting elements P21 are electrically connected to the same third sub-pixel circuit C23, and the second color sub-light-emitting elements P22 are electrically connected to the third sub-pixel circuit C23 in a one-to-one correspondence, and all third color sub-light-emitting elements P23 are electrically connected to the same third sub-pixel circuit C23. In this design, one third sub-pixel circuit C23 is electrically connected to one second color sub-light-emitting element P22, which can increase the number of second color sub-light-emitting elements P22 at the junction of the first sub-display area A21 and the second sub-display area A22. When displaying the second color pure color picture, the PPI of the second color sub-light-emitting element P22 can be increased, the brightness difference at the junction of the first sub-display area A21 and the second sub-display area A22 can be weakened, the split screen problem can be improved, and the display effect can be improved.

[0109] It can be understood that in some optional embodiments, a third sub-pixel circuit C23 can be electrically connected to a third color sub-light-emitting element P23, thereby improving the resolution of the display panel corresponding to the second color sub-light-emitting element P23 when displaying a third color pure color image, thereby improving the display effect.

[0110] In some optional embodiments, reference Fig.23 and Fig.24 , Fig.23 is another partial structural diagram provided by an embodiment of the present invention, Fig.24 yes Fig.23A schematic diagram of a cross-sectional structure along the EE' direction in FIG. The second sub-light emitting element P2 includes a first electrode 131, a light emitting structure 132 and a second electrode 133. In the same third sub-light emitting repeating unit L23, the first electrodes 131 of adjacent second sub-light emitting elements P2 electrically connected to the same third sub-pixel circuit C23 and located in the second sub-display area A22 are electrically connected through a third connecting wire W3, and the first electrodes 131 of adjacent second sub-light emitting elements P2 electrically connected to the same third sub-pixel circuit C23 and located in the first sub-display area A21 are electrically connected through a fourth connecting wire W4. The third connecting wire W3 is a transparent wire, and the fourth connecting wire W4 is a metal wire.

[0111] It is understandable that the film structure of the display panel can be Fig.10 , Fig.11 , Fig.14 , Fig.16 The membrane structure shown is similar and will not be described in detail.

[0112] In an embodiment of the present invention, the third connecting line W3 is a transparent wiring that can reuse the first conductive layer 1311 (ITO) of the first electrode 131 (anode), and the fourth connecting line W4 can reuse the second metal layer 115, thereby reducing the number of film layers and the corresponding number of masks, reducing the difficulty of the manufacturing process of the display panel, improving the manufacturing efficiency of the display panel, and achieving a thin and light display panel.

[0113] It can be understood that in order to further improve the transmittance of the second sub-display area A22, the connecting line of the first electrodes 131 of two adjacent second sub-light-emitting elements P2 located at the junction of the first sub-display area A21 and the second sub-display area A22 can be made of transparent material in the second sub-display area A22, and can be made of metal material in the first sub-display area A21, thereby taking into account both the transmittance of the second sub-display area A22 and the signal transmission performance, thereby achieving the normal operation and normal display of the photosensitive elements in this area.

[0114] It can be understood that in order to design the first connecting line W1 and the fourth connecting line W4 as curves (arcs or wavy lines) to avoid the appearance of straight-edge boundaries (or straight-edge gaps) in the second sub-display area A22, the diffraction degree of the second sub-display area A22 can be greatly reduced, thereby reducing the impact of the diffraction phenomenon on the picture taken by the camera, which is beneficial to improving the clarity of the captured picture and improving the captured image quality.

[0115] In some optional embodiments, reference Fig.25 , Fig.25This is another partial structural diagram provided by an embodiment of the present invention. Multiple connecting wires W belonging to the same second light-emitting repeating unit L2 will partially overlap in the direction perpendicular to the light-emitting surface of the display panel. In this case, to avoid short circuit, some connecting wires W can be set in the conductive layer 30, and some connecting wires can be set in the conductive layer 40. At the same time, the number of film layers and the corresponding number of masks can be reduced, the difficulty of the manufacturing process of the display panel can be reduced, the manufacturing efficiency of the display panel can be improved, and the display panel can be made thinner.

[0116] It should be noted that the technical features of the embodiments of the display panel provided by the present invention can be freely combined without conflict, and the present invention will not list them all.

[0117] The embodiment of the present invention further provides a display device, such as Fig.26 As shown, Fig.26 is a schematic diagram of the structure of a display device provided by an embodiment of the present invention, and the display device includes the above-mentioned display panel. The specific structure of the display panel has been described in detail in the above-mentioned embodiment, and will not be repeated here. Of course, Fig.19 The display device shown is for illustration only, and the display device may be any electronic device with a display function, such as a mobile phone, a tablet computer, a laptop computer, an e-reader or a television.

[0118] The display panel and display device provided in the embodiments of the present invention are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A display panel, characterized in that: include: a first display area and a second display area, the first display area at least partially surrounding the second display area; the second display area includes a first sub-display area and a second sub-display area, the first sub-display area at least partially surrounding the second sub-display area, and the light transmittance of the second sub-display area is greater than the light transmittance of the first display area; a first pixel circuit and a second pixel circuit, wherein the first pixel circuit is located in the first display area, and the second pixel circuit is located in the first sub-display area; A first light-emitting repeating unit, the first light-emitting repeating unit is located in the first display area and includes at least one first light-emitting unit, the first light-emitting unit includes at least three first sub-light-emitting elements of different colors; A second light-emitting repeating unit, the second light-emitting repeating unit is located in the second display area and includes at least two second light-emitting units, and the second light-emitting unit includes at least three second sub-light-emitting elements of different colors; In the same first light-emitting repeating unit, the first sub-light-emitting elements are electrically connected to the first pixel circuit in a one-to-one correspondence; in the same second light-emitting repeating unit, all the second sub-light-emitting elements of at least one same color are electrically connected to the same second pixel circuit; The second pixel circuit further includes a third sub-pixel circuit, and the third sub-pixel circuit is located in the first sub-display area; The second light-emitting repeating unit further includes a third sub-light-emitting repeating unit, the third sub-light-emitting repeating unit includes a first unit and a second unit, the first unit is located in the first sub-display area, the second unit is located in the second sub-display area, and the first unit includes at least one of the second light-emitting units, and the second unit includes at least one of the second light-emitting units; In the same third sub-light-emitting repeating unit, all the second sub-light-emitting elements of at least one same color are electrically connected to the same third sub-pixel circuit; The sum of the light-emitting areas of all the first sub-light-emitting elements in the first display area is recorded as S1, the sum of the light-emitting areas of all the second sub-light-emitting elements in the first sub-display area is recorded as S2, and the sum of the light-emitting areas of all the second sub-light-emitting elements in the second sub-display area is recorded as S3, wherein S1≥S2≥S3.

2. The display panel according to claim 1, characterized in that: The second pixel circuit includes a first sub-pixel circuit and a second sub-pixel circuit, and the first sub-pixel circuit and the second sub-pixel circuit are both located in the first sub-display area; The second light-emitting repeating unit includes a first sub-light-emitting repeating unit and a second sub-light-emitting repeating unit, the first sub-light-emitting repeating unit is located in the first sub-display area, the second sub-light-emitting repeating unit is located in the second sub-display area, and the first sub-light-emitting repeating unit and the second sub-light-emitting repeating unit each include at least two second light-emitting units; In the same first sub-light-emitting repeating unit, all the second sub-light-emitting elements of at least one same color are electrically connected to the same first sub-pixel circuit; in the same second sub-light-emitting repeating unit, all the second sub-light-emitting elements of at least one same color are electrically connected to the same second sub-pixel circuit.

3. The display panel according to claim 2, characterized in that: The first sub-display area and the second sub-display area are arranged along a first direction; The first sub-light-emitting repeating unit includes at least two of the second light-emitting units arranged along the first direction or the second direction; The second sub-light-emitting repeating unit includes at least two second light-emitting units arranged along the first direction or the second direction, and the first direction and the second direction intersect.

4. The display panel according to claim 2, characterized in that: The second light-emitting unit includes three second sub-light-emitting elements of different colors, namely a first color sub-light-emitting element, a second color sub-light-emitting element, and a third color sub-light-emitting element.

5. The display panel according to claim 4, characterized in that: In the same first sub-light-emitting repeating unit, all the first-color sub-light-emitting elements are electrically connected to the same first sub-pixel circuit; All the second-color sub-light emitting elements are electrically connected to the same first sub-pixel circuit, or the second-color sub-light emitting elements are electrically connected to the first sub-pixel circuit in a one-to-one correspondence; All of the third color sub-light emitting elements are electrically connected to the same first sub-pixel circuit, or the third color sub-light emitting elements are electrically connected to the first sub-pixel circuit in a one-to-one correspondence.

6. The display panel according to claim 4, characterized in that: In the same second sub-light-emitting repeating unit, all the first-color sub-light-emitting elements are electrically connected to the same second sub-pixel circuit; All the second-color sub-light emitting elements are electrically connected to the same second sub-pixel circuit, or the second-color sub-light emitting elements are electrically connected to the second sub-pixel circuit in a one-to-one correspondence; All of the third color sub-light emitting elements are electrically connected to the same second sub-pixel circuit, or the third color sub-light emitting elements are electrically connected to the second sub-pixel circuit in a one-to-one correspondence.

7. The display panel according to claim 4, characterized in that: The first color sub-light emitting element is a red sub-light emitting element, the second color sub-light emitting element is a green sub-light emitting element, and the third color sub-light emitting element is a blue sub-light emitting element.

8. The display panel according to claim 2, characterized in that: The second sub-light emitting element includes a first electrode, a light emitting structure and a second electrode. The first electrodes of adjacent second sub-light emitting elements electrically connected to the same second sub-pixel circuit are electrically connected via a first connecting line, and the first connecting line is a transparent wiring.

9. The display panel according to claim 8, characterized in that: The first electrodes of the adjacent second sub-light emitting elements electrically connected to the same first sub-pixel circuit are electrically connected via a second connecting line, and the second connecting line is a metal wiring.

10. The display panel according to claim 2, characterized in that: In a direction perpendicular to the light emitting surface of the display panel, the second sub-pixel circuit at least partially overlaps with the second sub-light emitting element.

11. The display panel according to claim 1, characterized in that: The first unit and the second unit of the same third sub-light-emitting repeating unit are arranged along a first direction; The first unit includes at least two second light emitting units arranged along a second direction, the second unit includes at least two second light emitting units arranged along the second direction, and the first direction intersects the second direction.

12. The display panel according to claim 1, characterized in that: The second light-emitting unit includes three second sub-light-emitting elements of different colors, namely a first color sub-light-emitting element, a second color sub-light-emitting element, and a third color sub-light-emitting element; In the same third sub-light-emitting repeating unit, all the first-color sub-light-emitting elements are electrically connected to the same third sub-pixel circuit; All the second-color sub-light emitting elements are electrically connected to the same third sub-pixel circuit, or the second-color sub-light emitting elements are electrically connected to the third sub-pixel circuit in a one-to-one correspondence; All the third color sub-light emitting elements are electrically connected to the same third sub-pixel circuit, or the third color sub-light emitting elements are electrically connected to the third sub-pixel circuit in a one-to-one correspondence.

13. The display panel according to claim 1, characterized in that: The second sub-light emitting element includes a first electrode, a light emitting structure and a second electrode; In the same third sub-light-emitting repetitive unit, the first electrode of the adjacent second sub-light-emitting element which is electrically connected to the same third sub-pixel circuit and located in the second sub-display area is electrically connected through a third connecting line, and the first electrode of the adjacent second sub-light-emitting element which is electrically connected to the same third sub-pixel circuit and located in the first sub-display area is electrically connected through a fourth connecting line, the third connecting line is a transparent wiring, and the fourth connecting line is a metal wiring.

14. The display panel according to claim 2, characterized in that: In a direction perpendicular to the light emitting surface of the display panel, the second sub-light emitting element electrically connected to the first sub-pixel circuit does not overlap with the second sub-pixel circuit.

15. The display panel according to claim 2, characterized in that: The second sub-light emitting element electrically connected to the second sub-pixel circuit is electrically connected to the second sub-pixel circuit via a first auxiliary wire; At least two of the first auxiliary conductive lines are respectively arranged in different layers, and in a direction perpendicular to the plane where the display panel is located, the two first auxiliary conductive lines at least partially overlap.

16. The display panel according to claim 2, characterized in that: A second sub-light emitting element electrically connected to the same second sub-pixel circuit is electrically connected to the second sub-pixel circuit via a first auxiliary wire; The first auxiliary conductive line comprises a first sub-auxiliary conductive line and a second sub-auxiliary conductive line which are electrically connected, the first sub-auxiliary conductive line is located in the first sub-display area, and the second sub-auxiliary conductive line is located in the second sub-display area; The first auxiliary sub-conductor wire includes a metal wiring, and the second auxiliary sub-conductor wire includes a transparent wiring.

17. The display panel according to claim 1, characterized in that: The second light-emitting repeating unit includes a first sub-light-emitting repeating unit and a second sub-light-emitting repeating unit, the first sub-light-emitting repeating unit is located in the first sub-display area, and the second sub-light-emitting repeating unit is located in the second sub-display area; The shape of the anode of the second sub-light-emitting element in the second sub-light-emitting repeating unit is any one of a circle, an ellipse, a regular hexagon or a rounded rectangle.

18. A display device, characterized in that: Comprising a display panel according to any one of claims 1-17.

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