Display panel and display device

Abstract

The embodiment of the invention provides a display panel and a display device, relates to the technical field of display, and is used for reducing edge display color cast of the display panel. The display panel is provided with a first display area and a second display area, and the second display area is located on the outer side of the first display area and is adjacent to the first display area. A first light-emitting device, a second light-emitting device and a third light-emitting device are arranged in the first display area, and a fourth light-emitting device is arranged in the second display area. The first light-emitting device, the second light-emitting device and the third light-emitting device emit light in different colors, and the fourth light-emitting device and the first light-emitting device emit light in the same color. The part, adjacent to the second display area, of the boundary line of the first display area is a target boundary line, and the multiple fourth light-emitting devices are arranged at intervals along the target boundary line; the plurality of light-emitting devices closest to the target boundary line in the first display area comprise at least one of a second light-emitting device and a third light-emitting device. The display panel is used for displaying images.

Description

Technical Field

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

[0002] In order to realize full-color display of the display panel, a plurality of light-emitting devices with different luminous colors are arranged in the display panel. The arrangement of the light-emitting devices with different luminous colors has a certain influence on the display effect of the display panel. How to arrange and design the light-emitting devices in the display panel to improve the display effect of the display panel is one of the research focuses in the field. Summary of the invention

[0003] An object of the embodiments of the present disclosure is to provide a display panel and a display device, which are used to reduce the edge display color deviation of the display panel.

[0004] To achieve the above objectives, the embodiments of the present disclosure provide the following technical solutions:

[0005] In one aspect, a display panel is provided. The display panel has a first display area and a second display area, wherein the second display area is located outside the first display area and adjacent to the first display area. The display panel includes: a plurality of first light-emitting devices, a plurality of second light-emitting devices, and a plurality of third light-emitting devices arranged in the first display area, and a plurality of fourth light-emitting devices arranged in the second display area. The light-emitting colors of the first light-emitting device, the second light-emitting device, and the third light-emitting device are different from each other, and the light-emitting color of the fourth light-emitting device is the same as that of the first light-emitting device.

[0006] The portion of the boundary line of the first display area adjacent to the second display area is the target boundary line, and multiple fourth light-emitting devices are arranged at intervals along the target boundary line; the multiple light-emitting devices closest to the target boundary line in the first display area include at least one of the second light-emitting device and the third light-emitting device.

[0007] In the above-mentioned display panel, the first display area and the second display area are used as a whole display area for displaying images of the display panel. When the multiple light-emitting devices closest to the target boundary line in the first display area include at least one of the second light-emitting device and the third light-emitting device, by arranging multiple fourth light-emitting devices arranged along the target boundary line on the outside of the first display area, the light-emitting colors of the outermost light-emitting devices in the display panel are all the first color, thereby effectively reducing the edge color deviation of the display panel and improving the display quality of the display panel.

[0008] In some embodiments, a plurality of fourth light emitting devices are arranged in at least one row, and the fourth light emitting devices in each row are arranged at intervals along a target boundary line of the first display area.

[0009] In some embodiments, the second display area is located on one side of the first display area in the first direction, a plurality of fourth light emitting devices are arranged in at least one column, and the fourth light emitting devices in each column are arranged at intervals along the second direction; and / or, the second display area is located on one side of the first display area in the second direction, a plurality of fourth light emitting devices are arranged in at least one row, and the fourth light emitting devices in each row are arranged at intervals along the first direction. The first direction is perpendicular to the second direction.

[0010] In some embodiments, an arrangement rule of the plurality of first light emitting devices is the same as an arrangement rule of the plurality of fourth light emitting devices.

[0011] In some embodiments, the multiple first light-emitting devices and the multiple fourth light-emitting devices are all first color light-emitting devices, and the multiple first color light-emitting devices are arranged in multiple rows and columns, with each row of first color light-emitting devices arranged along the first direction and each column of first color light-emitting devices arranged along the second direction.

[0012] In some embodiments, multiple first light-emitting devices and multiple fourth light-emitting devices are first color light-emitting devices, and multiple first color light-emitting devices are arranged in multiple rows. Each row of first color light-emitting devices is arranged along a first direction, and two adjacent rows of first color light-emitting devices are staggered in a second direction.

[0013] In some embodiments, the distance between the first light-emitting device and the fourth light-emitting device adjacent to each other in the first direction is equal to the distance between the two first light-emitting devices adjacent to each other in the first direction; and / or the distance between the first light-emitting device and the fourth light-emitting device adjacent to each other in the second direction is equal to the distance between the two first light-emitting devices adjacent to each other in the second direction.

[0014] In some embodiments, the distance between two adjacent fourth light-emitting devices in the first direction is equal to the distance between two adjacent first light-emitting devices in the first direction; and / or the distance between two adjacent fourth light-emitting devices in the second direction is equal to the distance between two adjacent first light-emitting devices in the first direction.

[0015] In some embodiments, an arrangement density of the plurality of fourth light emitting devices is greater than an arrangement density of the plurality of first light emitting devices.

[0016] In some embodiments, a distance between two adjacent fourth light-emitting devices in the first direction is smaller than a distance between two adjacent first light-emitting devices in the first direction; and / or a distance between two adjacent fourth light-emitting devices in the second direction is smaller than a distance between two adjacent first light-emitting devices in the second direction.

[0017] In some embodiments, a light emitting area of ​​the fourth light emitting device is greater than or equal to a light emitting area of ​​the first light emitting device.

[0018] In some embodiments, the display panel further comprises: a plurality of pixel circuits, each pixel circuit being electrically connected to at least one light emitting device. Among the plurality of first light emitting devices, at least one first light emitting device among the first light emitting devices closest to the target boundary line is a selected first light emitting device, and the selected first light emitting device and at least one fourth light emitting device are connected to the same pixel circuit.

[0019] In some embodiments, among the plurality of fourth light-emitting devices adjacent to the selected first light-emitting device, at least one fourth light-emitting device relatively close to the selected first light-emitting device is connected to the same pixel circuit as the selected first light-emitting device.

[0020] In some embodiments, a shape formed by sequentially connecting geometric centers of a selected first light-emitting device and at least one fourth light-emitting device connected to the same pixel circuit includes at least one of a straight line, a triangle, a rectangle, or a trapezoid.

[0021] In some embodiments, the geometric centers of the selected first light-emitting device and at least one fourth light-emitting device connected to the same pixel circuit are sequentially connected to form a preset shape; and the preset shapes corresponding to different pixel circuits do not intersect each other.

[0022] In some embodiments, at least one fourth light emitting device located at a corner of the display panel is not connected to the pixel circuit.

[0023] In some embodiments, the light emitting color of the first light emitting device is blue, the light emitting color of one of the second light emitting device and the third light emitting device is red, and the light emitting color of the other of the second light emitting device and the third light emitting device is green.

[0024] In another aspect, a display device is provided, comprising: a driving circuit and a display panel as described in any one of the above embodiments, wherein the driving circuit is connected to the display panel.

[0025] The above-mentioned display device has the same structure and beneficial technical effects as the display panels provided in some of the above-mentioned embodiments, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the present disclosure, the following briefly introduces the drawings required to be used in some embodiments of the present disclosure. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can also be obtained based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams, and are not limitations on the actual size of the product involved in the embodiments of the present disclosure, the actual process of the method, the actual timing of the signal, etc.

[0027] Figure 1Ais a schematic structural diagram of a display device according to some embodiments;

[0028] Figure 1B is a planar structural diagram of a display panel according to some embodiments;

[0029] Figure 2 is a pixel arrangement diagram of a display panel according to some embodiments;

[0030] Figure 3 Schematic diagram of pixel arrangement of a display panel according to some other embodiments;

[0031] Figure 4 Schematic diagram of pixel arrangement of a display panel according to some other embodiments;

[0032] Figure 5 Schematic diagram of pixel arrangement of a display panel according to some other embodiments;

[0033] Figure 6 Schematic diagram of pixel arrangement of a display panel according to some other embodiments;

[0034] Figure 7 Schematic diagram of pixel arrangement of a display panel according to some other embodiments;

[0035] Figure 8 Schematic diagram of pixel arrangement of a display panel according to some other embodiments;

[0036] Fig. 9 Schematic diagram of pixel arrangement of a display panel according to some other embodiments;

[0037] Fig.10 Schematic diagram of pixel arrangement of a display panel according to some other embodiments;

[0038] Fig.11 Schematic diagram of pixel arrangement of a display panel according to some other embodiments;

[0039] Fig.12 Schematic diagram of pixel arrangement of a display panel according to some other embodiments;

[0040] Fig.13 Schematic diagram of pixel arrangement of a display panel according to some other embodiments;

[0041] Fig.14 Schematic diagram of pixel arrangement of a display panel according to some other embodiments;

[0042] Fig.15 Schematic diagram of pixel arrangement of a display panel according to some other embodiments;

[0043] Fig.16 Schematic diagram of pixel arrangement of a display panel according to some other embodiments;

[0044] Fig.17 Schematic diagram of pixel arrangement of a display panel according to some other embodiments;

[0045] Fig.18 Schematic diagram of pixel arrangement of a display panel according to some other embodiments;

[0046] Fig.19 Schematic diagram of pixel arrangement of a display panel according to some other embodiments;

[0047] Fig. 20 Schematic diagram of pixel arrangement of a display panel according to some other embodiments;

[0048] Fig.21 Schematic diagram of pixel arrangement of a display panel according to some other embodiments;

[0049] Fig. 22 Schematic diagram of pixel arrangement of a display panel according to some other embodiments;

[0050] Fig.23 Schematic diagram of pixel arrangement of a display panel according to some other embodiments. DETAILED DESCRIPTION

[0051] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in some embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments provided by the present disclosure, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present disclosure.

[0052] Unless the context requires otherwise, throughout the specification and claims, the term "comprise" and other forms thereof, such as the third person singular form "comprises" and the present participle form "comprising", are to be interpreted as open, inclusive, that is, "including, but not limited to". In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific example" or "some examples" and the like are intended to indicate that specific features, structures, materials or characteristics associated with the embodiment or example are included in at least one embodiment or example of the present disclosure. The schematic representation of the above terms does not necessarily refer to the same embodiment or example. In addition, the specific features, structures, materials or characteristics may be included in any one or more embodiments or examples in any appropriate manner.

[0053] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0054] When describing some embodiments, the expressions "coupled" and "connected" and their derivatives may be used. The term "connected" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. The term "coupled" indicates, for example, that two or more components are in direct physical or electrical contact. The term "coupled" or "communicatively coupled" may also refer to two or more components that are not in direct contact with each other, but still cooperate or interact with each other. The embodiments disclosed herein are not necessarily limited to the contents of this document.

[0055] “At least one of A, B, and C” has the same meaning as “at least one of A, B, or C” and both include the following combinations of A, B, and C: A only, B only, C only, the combination of A and B, the combination of A and C, the combination of B and C, and the combination of A, B, and C.

[0056] “A and / or B” includes the following three combinations: A only, B only, and a combination of A and B.

[0057] As used herein, "parallel", "perpendicular", and "equal" include the situations described and situations similar to the situations described, and the range of the similar situations is within the acceptable deviation range, wherein the acceptable deviation range is determined by a person of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, wherein the acceptable deviation range of approximate parallelism may be, for example, a deviation within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, wherein the acceptable deviation range of approximate perpendicularity may also be, for example, a deviation within 5°. "Equal" includes absolute equality and approximate equality, wherein the acceptable deviation range of approximate equality may be, for example, the difference between the two equalities is less than or equal to 5% of either one.

[0058] It will be understood that when a layer or an element is referred to as being on another layer or substrate, it can be directly on the other layer or substrate, or intervening layers may be present between the layer or element and the other layer or substrate.

[0059] Exemplary embodiments are described herein with reference to cross-sectional views and / or plan views that are idealized exemplary drawings. In the drawings, the thickness of the layers and the area of ​​the regions are exaggerated for clarity. Therefore, variations in the shapes relative to the drawings due to, for example, manufacturing techniques and / or tolerances are conceivable. Therefore, the exemplary embodiments should not be interpreted as being limited to the shapes of the regions shown herein, but include shape deviations due to, for example, manufacturing. For example, an etched region shown as a rectangle will typically have curved features. Therefore, the regions shown in the drawings are schematic in nature, and their shapes are not intended to illustrate the actual shapes of the regions of the device, and are not intended to limit the scope of the exemplary embodiments.

[0060] An embodiment of the present disclosure provides a display device 100 .

[0061] In some embodiments, Figure 1A As shown, the display device 100 includes: a display panel 10 and a driving circuit 20 , and the display panel 10 is connected to the driving circuit 20 .

[0062] The display device 100 can be any device that displays, whether in motion (e.g., video), fixed (e.g., still images), text, or images. More specifically, it is contemplated that the embodiments described may be implemented in or associated with a variety of electronic devices, including, but not limited to, mobile phones, wireless devices, PDAs (Personal Digital Assistants), PIAs (Personal Information Assistants), handheld or portable computers, GPS receivers / navigators, cameras, video cameras, game consoles, wearable devices, flat panel displays, computer monitors, automotive displays (e.g., odometer displays, etc.), navigators, cockpit controls and / or displays, displays of camera views (e.g., displays of rear-view cameras in vehicles), electronic billboards or signs, and aesthetic structures (e.g., displays of images of a piece of jewelry), etc.

[0063] From the perspective of the form of the display device 100, the display device 100 may be a flat display device, a curved display device, or a foldable display device, etc. From the perspective of the shape of the display device 100, the display device 100 may be rectangular or circular, etc. There is no limitation to this, and an adaptive design may be performed according to actual needs.

[0064] Exemplarily, the display device 100 may further include a frame and other electronic components, and the display panel 10 may be disposed in the frame, for example. The drive circuit 20 is configured to send a drive signal, for example, a display drive signal and / or a touch drive signal, to the display panel 10. The display panel 10 displays an image and / or implements a touch operation under the drive of the drive circuit 20.

[0065] Exemplarily, the driving circuit 20 may be disposed on a circuit board, and the circuit board includes but is not limited to a printed circuit board (PCB, Printed Circuit Board) or a flexible circuit board (FPC, Flexible Printed Circuit).

[0066] In some embodiments, Figure 1B As shown, the display panel 10 includes a display area AA and a peripheral area AN located at at least one side of the display area AA. The display area AA includes a first display area AA1 and a second display area AA2, the second display area AA2 is located outside the first display area AA1 and adjacent to the first display area AA1.

[0067] The first display area AA1 may be provided with a plurality of pixels P, the plurality of pixels P are evenly distributed in the first display area AA1, and the plurality of pixels P may be arranged in an array or arranged in an array in a staggered manner. The peripheral area AN may be provided with binding electrodes, and the driving circuit 20 may be connected to the binding electrodes in the peripheral area AN.

[0068] Exemplarily, each pixel P includes a light-emitting device and a pixel circuit correspondingly connected to the light-emitting device, and the pixel circuit is used to transmit a driving current or a driving voltage to the light-emitting device connected thereto to drive the light-emitting device to emit light. The light-emitting device includes but is not limited to an organic light-emitting diode (OLED), a mini light-emitting diode (Mini Light Emitting Diode), or a micro light-emitting diode (Micro Light Emitting Diode).

[0069] In some embodiments, Figure 1B As shown, each pixel P includes at least one first light emitting device 1, at least one second light emitting device 2 and at least one third light emitting device 3, and the light emitting colors of the first light emitting device 1, the second light emitting device 2 and the third light emitting device 3 are different from each other.

[0070] Exemplarily, the light emitting color of the first light emitting device 1 is blue, the light emitting color of one of the second light emitting device 2 and the third light emitting device 3 is red, and the light emitting color of the other of the second light emitting device 2 and the third light emitting device 3 is green.

[0071] The brightness of each light-emitting device can be independently controlled, that is, each light-emitting device can emit light or not emit light at a set brightness as needed. The light-emitting device is the smallest light-emitting unit in the display panel 10. By adjusting the brightness of light-emitting devices of different light-emitting colors in the display panel 10, the display panel 10 can achieve full-color display.

[0072] Exemplarily, the shapes of the plurality of light emitting devices in the display panel 10 may be the same or different. The shape of the light emitting device includes but is not limited to at least one of a circle, an ellipse or a polygon (e.g., a rectangle, a pentagon or a hexagon, etc.). At the same time, the light emitting areas of the plurality of light emitting devices in the display panel 10 may be the same or different.

[0073] In the case where the light-emitting device is an OLED light-emitting device, the light-emitting area of ​​the OLED light-emitting device may refer to the area of ​​the overlapping portion of the cathode, organic light-emitting layer and anode of the OLED light-emitting device in a direction perpendicular to the thickness of the display panel 10, and the shape of the light-emitting device may be the shape of the aforementioned overlapping portion.

[0074] For devices such as mobile phones, televisions or computer monitors, when the shape of the display area AA is a rectangle, the boundary line of the display area AA is a straight line; when the shape of the corners of the display area AA is an arc, the display area AA is roughly rectangular, and the boundary line of the display area AA includes a combination of straight lines and arcs. Alternatively, for devices such as smart bracelets or smart watches, the shape of the display area AA may be a rectangle (a right-angled rectangle or a rounded rectangle), a circle, or a long strip with arcs at both ends and a straight line in the middle, and the boundary of the display area may be a circle, or a combination of straight lines and arcs.

[0075] Specifically, the shape of the first display area AA1 of the display panel 10 includes but is not limited to a circle, an ellipse or a polygon, etc. The shape of the first display area AA1 can be a common circle or rectangle, etc., or a special shape, such as a triangle, a parallelogram, a trapezoid, a pentagon or a hexagon, etc., and can be adaptively designed according to the actual application scenario of the display panel 10, and the present disclosure does not limit this.

[0076] Based on the above, the first display area AA1 has at least one boundary line J, and the shape of the boundary line J of the first display area AA1 includes at least one of a circle, a straight line or an arc.

[0077] like Figure 2 and Figure 3 As shown, the boundary line J of the first display area AA1 may refer to a line connecting outer edges of the outermost plurality of light emitting devices among the plurality of first light emitting devices 1 , the plurality of second light emitting devices 2 , and the plurality of third light emitting devices 3 .

[0078] Alternatively, the boundary line J of the first display area AA1 may also refer to the edge of a regular shape (such as a triangle, circle, ellipse, rectangle, parallelogram or regular polygon, etc.) that can enclose multiple first light-emitting devices 1, multiple second light-emitting devices 2 and multiple third light-emitting devices 3.

[0079] Specifically, in some examples, such as Figure 2 As shown, among the multiple first light-emitting devices 1, the multiple second light-emitting devices 2, and the multiple third light-emitting devices 3 within the first display area AA1, the multiple first light-emitting devices 1 on the far right, the multiple second light-emitting devices 2 at the top, the multiple second light-emitting devices 2 and the multiple third light-emitting devices 3 on the far left, and the multiple third light-emitting devices 3 at the bottom are the outermost multiple light-emitting devices among the multiple first light-emitting devices 1, the multiple second light-emitting devices 2, and the multiple third light-emitting devices 3.

[0080] The right sides of the rightmost multiple first light-emitting devices 1 are sequentially connected to form a first boundary line J1 of the first display area AA1, the upper sides of the top multiple second light-emitting devices 2 are sequentially connected to form a second boundary line J2 of the first display area AA1, the left sides of the leftmost multiple second light-emitting devices 2 and the multiple third light-emitting devices 3 are sequentially connected to form a third boundary line J3 of the first display area AA1, and the lower sides of the bottom multiple third light-emitting devices 3 are sequentially connected to form a fourth boundary line J4 of the first display area AA1.

[0081] In other examples, such as Figure 4 As shown, the plurality of light emitting devices in the first display area AA1 are generally arranged in a circle, and the circle with the smallest diameter that can surround the plurality of first light emitting devices 1, the plurality of second light emitting devices 2 and the plurality of third light emitting devices 3 is the boundary line J of the first display area AA1.

[0082] Based on the above, taking the shape of the first display area AA1 as a rectangle as an example, Figure 2 As shown, the first display area AA1 has a second boundary line J2 and a fourth boundary line J4 extending along the first direction X, and a first boundary line J1 and a third boundary line J3 extending along the second direction Y.

[0083] Among the plurality of light emitting devices in the first display area AA1, the plurality of light emitting devices closest to the first boundary line J1 ( Figure 2 The multiple light-emitting devices in the middle frame L1 are all first light-emitting devices 1; the multiple light-emitting devices closest to the second boundary line J2 ( Figure 2 The multiple light-emitting devices in the middle frame L2 are all second light-emitting devices 2; the multiple light-emitting devices closest to the third boundary line J3 ( Figure 2 The plurality of light emitting devices in the middle frame L3 include the second light emitting device 2 and the third light emitting device 3; the plurality of light emitting devices closest to the fourth boundary line J4 ( Figure 2 The multiple light-emitting devices in the middle frame L4 are all third light-emitting devices 3.

[0084] For example, the first light emitting device 1 emits blue light, the second light emitting device 2 emits red light, and the third light emitting device 3 emits green light. When all the light emitting devices in the display panel 10 do not emit light, the display panel 10 presents the background color (black). Figure 2 As shown, the plurality of first light emitting devices 1 in the frame L1 are the plurality of light emitting devices closest to the first boundary line J1, and the light emitting color of the first light emitting devices 1 is blue. Therefore, the edge along the first boundary line J1 of the first display area AA1 is displayed in blue.

[0085] like Figure 2 As shown, the plurality of second light emitting devices 2 in the frame L2 are the plurality of light emitting devices closest to the second boundary line J2, and the light emitting color of the second light emitting devices 2 is red. Therefore, the edge along the second boundary line J2 of the first display area AA1 is displayed in red.

[0086] like Figure 2 As shown, the alternately arranged multiple second light-emitting devices 2 and multiple third light-emitting devices 3 in the frame L3 are the multiple light-emitting devices closest to the third boundary line J3, the light-emitting color of the second light-emitting devices 2 is red, the light-emitting color of the third light-emitting devices 3 is green, and the red light and the green light are mixed to display yellow light. Therefore, the edge along the side of the third boundary line J3 of the first display area AA1 is displayed in yellow.

[0087] like Figure 2 As shown, the plurality of light emitting devices closest to the fourth boundary line J4 are all third light emitting devices 3. Figure 2 When the plurality of third light emitting devices 3 in the middle frame L4 all emit light, the edge along the fourth boundary line J4 of the first display area AA1 is displayed in green.

[0088] Compared with red, green and yellow, blue is closer to the background color. Therefore, the display panel 10 has obvious edge color deviation on the second boundary line J2 side, the third boundary line J3 side and the fourth boundary line J4 side compared with the first boundary line J1 side.

[0089] Correspondingly, if the multiple light-emitting devices closest to any boundary line J of the first display area AA1 include a plurality of first light-emitting devices 1 and a plurality of second light-emitting devices 2 arranged alternately, the blue light and the red light are mixed to display purple, and the purple deviates further from the background color than the blue. Therefore, in this case, the first display area AA1 of the display panel 10 will also have edge color deviation.

[0090] That is, in the first display area AA1 of the display panel 10, compared with the case where the multiple light-emitting devices arranged along the boundary line J of the first display area AA1 are all first light-emitting devices 1, when the multiple light-emitting devices arranged along the boundary line J include the second light-emitting device 2 and / or the third light-emitting device 3, the display panel 10 will have obvious edge display color deviation.

[0091] Based on this, Figure 1B As shown, the display panel 10 further includes a plurality of fourth light emitting devices 4 disposed in the second display area AA2, and the light emitting color of the fourth light emitting device 4 is the same as that of the first light emitting device 1. The portion of the boundary line J of the first display area AA1 adjacent to the second display area AA2 is the target boundary line JJ, and the plurality of light emitting devices closest to the target boundary line JJ in the first display area AA1 include at least one of the second light emitting device 2 and the third light emitting device 3. The plurality of fourth light emitting devices 4 in the second display area AA2 are arranged at intervals along the target boundary line JJ.

[0092] Exemplarily, the case where the plurality of light-emitting devices closest to the target boundary line JJ in the first display area AA1 include at least one of the second light-emitting device 2 and the third light-emitting device 3 includes:

[0093] (1) The plurality of light emitting devices closest to the target boundary line JJ includes only the second light emitting device 2 .

[0094] (2) The plurality of light emitting devices closest to the target boundary line JJ includes only the third light emitting device 3 .

[0095] (3) The plurality of light emitting devices closest to the target boundary line JJ include the first light emitting device 1 and the second light emitting device 2 .

[0096] (4) The plurality of light emitting devices closest to the target boundary line JJ include the first light emitting device 1 and the third light emitting device 3 .

[0097] (5) The plurality of light emitting devices closest to the target boundary line JJ include the second light emitting device 2 and the third light emitting device 3 .

[0098] (6) The plurality of light emitting devices closest to the target boundary line JJ include the first light emitting device 1 , the second light emitting device 2 , and the third light emitting device 3 .

[0099] In this embodiment, Figure 3 As shown, the first display area AA1 and the second display area AA2 are used as a whole display area for displaying images of the display panel 10, and the first display area AA1 and the second display area AA2 do not necessarily have obvious area divisions; the main difference between the first display area AA1 and the second display area AA2 is that the first display area AA1 is provided with light-emitting devices of multiple different light-emitting colors, while the second display area AA2 is only provided with a light-emitting device of one light-emitting color.

[0100] When the shape of the first display area AA1 is a polygon, the second display area AA2 can be located on at least one side of the first display area AA1. For example, the second display area AA2 can be located on one side, two sides, three sides of the first display area AA1 or surround the first display area AA1, and the plurality of fourth light-emitting devices 4 can be arranged in a "one" shape, a "Γ" shape, a "△" shape, a "匚" shape or a ring shape.

[0101] Based on this, as Figure 3 shown, the shape of the first display area AA1 is a rectangle, the second display area AA2 is located on three sides of the first display area AA1, and the first display area AA1 has three selected boundary lines JJ (for example Figure 3 the first selected boundary line JJ1, the second selected boundary line JJ2 and the third selected boundary line JJ3 shown in). Among the plurality of light-emitting devices in the first display area AA1, the plurality of light-emitting devices closest to the first target boundary line JJ1 of the first display area AA1 are all second light-emitting devices 2, and the plurality of light-emitting devices closest to the second target boundary line JJ2 of the first display area AA1 include a plurality of second light-emitting devices 2 and a plurality of third light-emitting devices 3 arranged alternately, and the plurality of light-emitting devices closest to the third target boundary line JJ3 of the first display area AA1 are all third light-emitting devices 3.

[0102] Based on this, as Figure 3 shown, a plurality of fourth light-emitting devices 4 arranged at intervals along the first target boundary line JJ1, a plurality of fourth light-emitting devices 4 arranged at intervals along the second target boundary line JJ2, and a plurality of fourth light-emitting devices 4 arranged at intervals along the third target boundary line JJ3 are provided in the second display area AA2. The light-emitting color of the fourth light-emitting devices 4 in the second display area AA2 is the same as the light-emitting color of the first light-emitting devices 1 in the first display area AA1. In this way, among all the light-emitting devices provided in the display panel 10, the light-emitting color of the outermost (closest to the edge portion of the display panel 10) light-emitting devices is blue, and the display effect of any edge of the portion of the display panel 10 for displaying an image presents a color closer to the background color.

[0103] When the shape of the first display area AA1 is a circle, for example, when the display panel 10 is applied to a wearable device such as a smart watch, as Figure 4 shown, the first display area AA1 has a boundary line J, and this boundary line J of the first display area AA1 is the target boundary line JJ of the first display area AA1, and the plurality of light-emitting devices closest to the target boundary line JJ in the first display area AA1 are arranged in a ring shape in sequence.

[0104] Based on this, when the display panel 10 further includes the second display area AA2, the second display area AA2 may be in a ring shape surrounding the first display area AA1, or may be a part of a ring shape. In this way, the plurality of fourth light emitting devices 4 may be sequentially arranged in a ring shape, or may be a part of a ring shape.

[0105] In summary, in this embodiment, when the multiple light-emitting devices closest to the target boundary line JJ in the first display area AA1 include at least one of the second light-emitting device 2 and the third light-emitting device 3, by disposing a plurality of fourth light-emitting devices 4 arranged along the target boundary line JJ on the outside of the first display area AA1, the light-emitting colors of the outermost light-emitting devices in the display panel 10 are all blue, thereby effectively reducing the edge color deviation of the display panel 10 and improving the display quality of the display panel 10.

[0106] In some embodiments, Figure 3 and Figure 5 As shown, a plurality of fourth light emitting devices 4 are arranged in at least one row, and the fourth light emitting devices 4 in each row are arranged at intervals along the target boundary line JJ of the first display area AA1.

[0107] like Figure 3 and Figure 5 As shown, by setting at least one row of fourth light-emitting devices 4 arranged along the target boundary line JJ of the first display area AA1 in the second display area AA2, among all the light-emitting devices set on the display panel 10, the outermost light-emitting devices are all blue light-emitting devices. In this way, the edge display color of the display panel 10 is closer to the background color, which can reduce the edge display color deviation of the display panel 10 and improve the display effect of the display panel 10.

[0108] For example, Figure 3 and Figure 5 As shown, in the second display area AA2, one row, two rows or more rows of fourth light-emitting devices 4 may be provided along a target boundary line JJ of the first display area AA1. Specifically, the fourth light-emitting devices 4 may be adaptively designed according to the size of the display panel 10, which is not limited in the present disclosure.

[0109] In some examples, such as Figure 3 and Figure 5As shown, the shape of the display panel 10 and the shape of the first display area AA1 are both rectangular. When the size of the light-emitting device, the interval between adjacent light-emitting devices, and the screen-to-body ratio of the display panel (the ratio of the overall area of ​​the first display area AA1 and the second display area AA2 to the area of ​​the display panel 10) remain unchanged, the larger the diagonal size of the rectangular display panel, the larger the size of the first display area AA1, the greater the number of light-emitting devices in the first display area AA1, and the greater the number of rows of fourth light-emitting devices 4 arranged along the target boundary line JJ of the first display area AA1 in the second display area AA2.

[0110] For example, when the diagonal size of the rectangular display panel is within the first setting range, a target boundary line JJ along the first display area AA1 may be provided with a row of fourth light-emitting devices 4; when the diagonal size of the rectangular display panel is within the second setting range (the minimum value of the second setting range is greater than the maximum value of the first setting range), a target boundary line JJ along the first display area AA1 may be provided with two rows of fourth light-emitting devices 4; when the diagonal size of the rectangular display panel is within the third setting range (the minimum value of the third setting range is greater than the maximum value of the second setting range), three rows of fourth light-emitting devices 4 may be provided along the first display area AA1, and so on.

[0111] In other examples, such as Figure 4 As shown, the shape of the first display area AA1 is in a circle, so the plurality of fourth light-emitting devices 4 outside the first display area AA1 can be sequentially arranged in a ring shape surrounding the first display area AA1. In this case, a row of fourth light-emitting devices 4 arranged along the target boundary line JJ of the first display area AA1 is in a circle, or an arc shape (a part of a circle, that is, the plurality of fourth light-emitting devices 4 do not completely surround the first display area AA1, for example Figure 4 As shown, there is a portion of the right side of the second display area AA2 where the fourth light emitting device 4 is not provided.

[0112] In some embodiments, Figure 3 and Figure 5 As shown, the second display area AA2 is located on one side of the first display area AA1 in the first direction X, and a plurality of fourth light-emitting devices 4 are arranged into at least one column, and the fourth light-emitting devices 4 in each column are arranged at intervals along the second direction Y; and / or, the second display area AA2 is located on one side of the first display area AA1 in the second direction Y, and a plurality of fourth light-emitting devices 4 are arranged into at least one row, and the fourth light-emitting devices 4 in each row are arranged at intervals along the first direction X.

[0113] like Figure 3 and Figure 5 As shown, the shape of the first display area AA1 is a rectangle, the first direction X may be a row direction, and correspondingly, the second direction Y is a column direction.

[0114] One, two or more rows of fourth light-emitting devices 4 may be arranged on one side of the first display area AA1 along the first direction X, so that in the area of ​​the display panel 10 for displaying images, the display color of the edge portion extending along the first direction X is closer to the background color, thereby avoiding color deviation of the side edge.

[0115] One, two or more columns of fourth light-emitting devices 4 may be arranged on one side of the first display area AA1 along the second direction Y, so that in the area of ​​the display panel 10 for displaying images, the display color of the edge portion extending along the second direction Y is closer to the background color, thereby avoiding display color deviation of the side edge.

[0116] In some embodiments, the arrangement rule of the plurality of first light-emitting devices 1 is the same as the arrangement rule of the plurality of fourth light-emitting devices 4 .

[0117] All the first color light emitting devices in the display panel 10 may be arranged in an array or in a staggered arrangement in an array.

[0118] For example, Figure 3 and Figure 5 As shown, the plurality of first light emitting devices 1 and the plurality of fourth light emitting devices 4 are all first color light emitting devices, which are arranged in multiple rows and columns. The first color light emitting devices in each row are arranged along the first direction X, and the first color light emitting devices in each column are arranged along the second direction Y.

[0119] For example, Figure 6 , Figure 7 , Figure 8 and Fig. 9 As shown, multiple first light-emitting devices 1 and multiple fourth light-emitting devices 4 are first color light-emitting devices, and multiple first color light-emitting devices are arranged in multiple rows. The first color light-emitting devices in each row are arranged along the first direction X, and the first color light-emitting devices in two adjacent rows are staggered in the second direction Y.

[0120] Taking an OLED light-emitting device as an example, in the preparation process of the light-emitting device, a plurality of first electrodes are first formed; then a pixel defining layer is formed, the pixel defining layer has a plurality of pixel openings, each pixel opening exposing at least a portion of a first electrode; then, a plurality of organic light-emitting layers are formed, at least a portion of each organic light-emitting layer is located within a pixel opening.

[0121] During the preparation process of the light-emitting device, the organic light-emitting layers of the light-emitting devices with different light-emitting colors may be formed respectively in different preparation steps, and the organic light-emitting layers of the light-emitting devices with the same light-emitting color may be formed in the same preparation step.

[0122] Specifically, according to the different luminous colors of the organic light-emitting layer formed in the pixel opening, the pixel opening includes at least a first opening, a second opening and a third opening, a first color luminescent material is set in the first opening, a second color luminescent material is set in the second opening, and a third color luminescent material is set in the third opening.

[0123] The step of forming the organic light-emitting layer of each light-emitting device may be to first set a mask plate above the pixel defining layer, the mask plate having an opening portion corresponding to the target pixel opening (for example, the first opening, the second opening or the third opening), align the opening portion on the mask plate and the corresponding pixel opening along the thickness direction of the display panel 10, and then form an organic light-emitting layer in the target pixel opening by evaporation, sputtering or dip coating process to form an organic light-emitting layer of a light-emitting device of one light-emitting color; repeat the above steps to form organic light-emitting layers of light-emitting devices of different light-emitting colors.

[0124] Alternatively, the step of forming the organic light-emitting layer of each light-emitting device may also be to first form a whole layer of organic light-emitting material layer on the pixel definition layer by evaporation, sputtering or dip coating, and the organic light-emitting material layer will cover the pixel definition layer in its entirety; then, a mask is set above the organic light-emitting material layer, and excess organic light-emitting material is removed by etching, and the organic light-emitting material in the target pixel opening is retained to form an organic light-emitting layer of a light-emitting device of a light-emitting color; the aforementioned steps are repeated to form organic light-emitting layers of light-emitting devices of different light-emitting colors. In this case, depending on the type of photoresist used (positive photoresist or negative photoresist), the mask used in the etching process may have an opening corresponding to the target pixel opening, or may have an opening corresponding to the rest of the target pixel opening.

[0125] The preparation method and preparation process of the light-emitting device are not limited to the above, and the above is only an exemplary description of some embodiments of the present disclosure and is not intended to limit the present disclosure.

[0126] Since the first light emitting device 1 and the fourth light emitting device 4 have the same light emitting color and the same arrangement pattern, during the preparation process of the display panel 10, multiple first light emitting devices 1 and multiple fourth light emitting devices 4 can be formed in the same preparation step, and no new process steps will be added during the preparation process of the display panel 10. While not adding the preparation steps of the display panel 10, the added fourth light emitting device 4 can reduce the edge display color deviation of the display panel 10 and improve the display quality of the display panel 10.

[0127] Furthermore, in the process of forming the organic light-emitting material layer, since the organic light-emitting layers of the light-emitting devices with the same light-emitting color are formed simultaneously in the same step, during this process, the organic light-emitting layers of the light-emitting devices closer to the edge of the display panel 10 may have defects such as poor thickness uniformity. When these light-emitting devices are used for image display, they may affect the edge display effect of the display panel 10.

[0128] Therefore, in some examples, some redundant light-emitting devices are provided in the display panel 10. For example, a plurality of light-emitting devices are provided in the first display area AA1 and in the peripheral portion surrounding the first display area AA1. However, in some examples, the light-emitting devices located at the periphery of the first display area AA1 are not connected to the pixel circuit and are not used for light-emitting display.

[0129] The fourth light-emitting device 4 in some examples of the present disclosure can utilize this part of redundant light-emitting devices. In this way, the inherent structure of the display panel 10 is utilized, and there is no need to set up new light-emitting devices, which will not increase the preparation cost of the display panel 10. At the same time, it can also reduce the edge display color deviation of the display panel 10 and improve the display quality.

[0130] In the case where the fourth light-emitting device 4 utilizes the redundant light-emitting devices in the setting of some display panels 10, although the redundant light-emitting devices may have the problem of poor light-emitting effect, the fourth light-emitting device 4 is mainly used for edge display color deviation compensation. Therefore, it will not have a significant impact on the display effect of the display panel 10. At the same time, it can also display the edge display color deviation of the display panel 10.

[0131] Based on the foregoing embodiments, in some embodiments, such as Figure 5 , Figure 7 and Fig. 9 As shown, the distance between the first light-emitting device 1 and the fourth light-emitting device 4 adjacent to each other in the first direction X is equal to the distance between the two first light-emitting devices 1 adjacent to each other in the first direction X; and / or the distance between the first light-emitting device 1 and the fourth light-emitting device 4 adjacent to each other in the second direction Y is equal to the distance between the two first light-emitting devices 1 adjacent to each other in the second direction Y.

[0132] The distance mentioned here may refer to the distance between the geometric centers of two adjacent light-emitting devices, or may also refer to the minimum distance between two adjacent light-emitting devices. When the shape of the light-emitting device is circular, the geometric center of the light-emitting device may refer to the center of the circle; when the shape of the light-emitting device is polygonal, the geometric center of the light-emitting device may refer to the centroid of the polygon. Figure 5 , Figure 7 and Fig. 9 The marked black point in the light-emitting device is the geometric center of the light-emitting device.

[0133] For example, Figure 5 As shown, the distance between the geometric centers of the first light emitting device 1 and the fourth light emitting device 4 adjacent in the first direction X is d1, and the distance between the geometric centers of the two first light emitting devices 1 adjacent in the first direction X is d2. The distance between the geometric centers of the first light emitting device 1 and the fourth light emitting device 4 adjacent in the second direction Y is d3, and the distance between the geometric centers of the two first light emitting devices 1 adjacent in the second direction Y is d4. When the arrangement rule of the plurality of first light emitting devices 1 is the same as the arrangement rule of the plurality of fourth light emitting devices 4, d1=d2, d3=d4.

[0134] For example, Figure 7 As shown, the distance between the geometric centers of the first light emitting device 1 and the fourth light emitting device 4 adjacent in the first direction X is d5, and the distance between the geometric centers of the two first light emitting devices 1 adjacent in the first direction X is d6. The distance between the geometric centers of the first light emitting device 1 and the fourth light emitting device 4 adjacent in the second direction Y is d7, and the distance between the geometric centers of the two first light emitting devices 1 adjacent in the second direction Y is d8. When the arrangement rule of the plurality of first light emitting devices 1 is the same as the arrangement rule of the plurality of fourth light emitting devices 4, d5=d6, d7=d8.

[0135] For example, Fig. 9 As shown, the distance between the geometric centers of the first light emitting device 1 and the fourth light emitting device 4 adjacent in the first direction X is d9, and the distance between the geometric centers of the two first light emitting devices 1 adjacent in the first direction X is d10. The distance between the geometric centers of the first light emitting device 1 and the fourth light emitting device 4 adjacent in the second direction Y is d11, and the distance between the geometric centers of the two first light emitting devices 1 adjacent in the second direction Y is d12. When the arrangement rule of the plurality of first light emitting devices 1 is the same as the arrangement rule of the plurality of fourth light emitting devices 4, d9=d10, d11=d12.

[0136] Based on the above, when the shapes and sizes (the size mentioned here may refer to the size of the light-emitting area of ​​the light-emitting device) of the first light-emitting device 1 and the fourth light-emitting device 4 are the same, the minimum distance between the first light-emitting device 1 and the fourth light-emitting device 4 adjacent to each other in the first direction X is also equal to the minimum distance between the two first light-emitting devices 1 adjacent to each other in the first direction X. The minimum distance between the first light-emitting device 1 and the fourth light-emitting device 4 adjacent to each other in the second direction Y is also equal to the minimum distance between the two first light-emitting devices 1 adjacent to each other in the second direction Y.

[0137] Based on the foregoing embodiments, in some embodiments, such as Figure 5 , Figure 7 and Fig. 9 As shown, the distance between two adjacent fourth light-emitting devices 4 in the first direction X is equal to the distance between two adjacent first light-emitting devices 1 in the first direction X; and / or the distance between two adjacent fourth light-emitting devices 4 in the second direction Y is equal to the distance between two adjacent first light-emitting devices 1 in the first direction X.

[0138] The distance mentioned here may refer to the distance between the geometric centers of two adjacent light-emitting devices, or may also refer to the minimum distance between two adjacent light-emitting devices.

[0139] For example, Figure 5 As shown, the distance between the geometric centers of two adjacent first light-emitting devices 1 in the first direction X is d13, and the distance between the geometric centers of two adjacent first light-emitting devices 1 in the second direction Y is d14. When the arrangement rule of the plurality of first light-emitting devices 1 is the same as the arrangement rule of the plurality of fourth light-emitting devices 4, d13=d2, d14=d4.

[0140] For example, Figure 7 As shown, the distance between the geometric centers of two adjacent first light-emitting devices 1 in the first direction X is d15, and the distance between the geometric centers of two adjacent first light-emitting devices 1 in the second direction Y is d16. When the arrangement rule of the plurality of first light-emitting devices 1 is the same as the arrangement rule of the plurality of fourth light-emitting devices 4, d15=d6, d16=d8.

[0141] For example, Fig. 9 As shown, the distance between the geometric centers of two adjacent first light-emitting devices 1 in the first direction X is d17, and the distance between the geometric centers of two adjacent first light-emitting devices 1 in the second direction Y is d18. When the arrangement rule of the plurality of first light-emitting devices 1 is the same as the arrangement rule of the plurality of fourth light-emitting devices 4, d17=d10, d18=d12.

[0142] Based on the above, when the shapes and sizes (the size mentioned here may refer to the size of the light-emitting area of ​​the light-emitting device) of the first light-emitting device 1 and the fourth light-emitting device 4 are the same, the minimum distance between the first light-emitting device 1 and the fourth light-emitting device 4 adjacent to each other in the first direction X is also equal to the minimum distance between the two first light-emitting devices 1 adjacent to each other in the first direction X. The minimum distance between the first light-emitting device 1 and the fourth light-emitting device 4 adjacent to each other in the second direction Y is also equal to the minimum distance between the two first light-emitting devices 1 adjacent to each other in the second direction Y.

[0143] In other embodiments, Fig.10 , Fig.11 , Fig.12 and Fig.13 As shown, the arrangement density of the plurality of fourth light-emitting devices 4 is greater than the arrangement density of the plurality of first light-emitting devices 1 .

[0144] In this way, the distance between two adjacent fourth light-emitting devices 4 is smaller, so that when the display panel 10 displays an image, the multiple fourth light-emitting devices 4 arranged along the target boundary line JJ of the first display area AA1 are arranged more closely, which can better realize the correction of the edge display color of the display panel 10, and avoid the influence of the light-emitting color of the second light-emitting device 2 and / or the third light-emitting device 3 closest to the target boundary line JJ in the first display area AA1 on the edge display color of the display panel 10.

[0145] In some embodiments, the distance between two adjacent fourth light-emitting devices 4 in the first direction X is smaller than the distance between two adjacent first light-emitting devices 1 in the first direction X; and / or the distance between two adjacent fourth light-emitting devices 4 in the second direction Y is smaller than the distance between two adjacent first light-emitting devices 1 in the second direction Y.

[0146] Specifically, the case where the distance between two adjacent fourth light-emitting devices 4 in the display panel 10 is smaller than the distance between two adjacent first light-emitting devices 1 includes but is not limited to the following examples.

[0147] In some examples, such as Fig.10 , Fig.11 , Fig.12 and Fig.13 As shown, the arrangement density of the plurality of fourth light-emitting devices 4 is greater than the arrangement density of the plurality of first light-emitting devices 1. In this case, since the arrangement density of the fourth light-emitting devices 4 is greater, the distance between adjacent fourth light-emitting devices 4 is smaller than the distance between adjacent first light-emitting devices 1.

[0148] In other examples, such as Fig.14 and Fig.15 As shown, the arrangement density of the plurality of fourth light-emitting devices 4 is the same as the arrangement density of the plurality of first light-emitting devices 1, the first light-emitting devices 1 and the fourth light-emitting devices 4 have the same shape, but the light-emitting area of ​​the fourth light-emitting devices 4 is larger than the light-emitting area of ​​the first light-emitting devices 1, so that the distance between adjacent fourth light-emitting devices 4 is smaller than the distance between adjacent first light-emitting devices 1.

[0149] For example, Fig.14 As shown, the size of the fourth light emitting device 4 along the first direction X is larger than the size of the first light emitting device 1 along the first direction X. Thus, the distance k1 between two adjacent fourth light emitting devices 4 along the first direction X is smaller than the distance k2 between two adjacent first light emitting devices 1 along the first direction X.

[0150] like Fig.14 As shown, the size of the fourth light emitting device 4 along the first direction X is equal to the size of the first light emitting device 1 along the first direction X. Thus, the distance k3 between two adjacent fourth light emitting devices 4 along the second direction Y is equal to the distance k4 between two adjacent first light emitting devices 1 along the second direction Y.

[0151] The distance mentioned here refers to the minimum distance between adjacent light emitting devices.

[0152] For example, Fig.15 As shown, the size of the fourth light emitting device 4 along the first direction X is larger than the size of the first light emitting device 1 along the first direction X. Thus, the distance k5 between two adjacent fourth light emitting devices 4 along the first direction X is smaller than the distance k6 between two adjacent first light emitting devices 1 along the first direction X.

[0153] like Fig.15 As shown, the size of the fourth light emitting device 4 along the first direction X is equal to the size of the first light emitting device 1 along the first direction X. Thus, the distance k7 between two adjacent fourth light emitting devices 4 along the second direction Y is smaller than the distance k8 between two adjacent first light emitting devices 1 along the second direction Y.

[0154] The distance mentioned here refers to the minimum distance between adjacent light emitting devices.

[0155] Based on any of the above embodiments, in the display panel 10 provided in some embodiments of the present disclosure, the light emitting area of ​​the fourth light emitting device 4 is greater than or equal to the light emitting area of ​​the first light emitting device 1 .

[0156] When the light emitting area of ​​the fourth light emitting device 4 is the same as that of the first light emitting device 1 , the fourth light emitting device 4 can be formed in the same manufacturing process as the first light emitting device 1 , and no additional manufacturing process of the display panel 10 is added.

[0157] When the light-emitting area of ​​the fourth light-emitting device 4 is larger than that of the first light-emitting device 1, the fourth light-emitting device 4 as an edge compensation light-emitting device has a larger light-emitting area, which can better realize the correction of the edge display color of the display panel 10, and avoid the influence of the light-emitting color of the second light-emitting device 2 and / or the third light-emitting device 3 closest to the target boundary line JJ in the first display area AA1 on the edge display color of the display panel 10.

[0158] Based on the above embodiment, when a row of light-emitting devices closest to the boundary line J of the display panel 10 includes the second light-emitting devices 2 and / or the third light-emitting devices 3, and another row of light-emitting devices adjacent to this row of light-emitting devices are all first light-emitting devices 1, the row of light-emitting devices including the second light-emitting devices 2 and / or the third light-emitting devices 3 may not be connected to the pixel circuit, and when the display panel 10 displays an image, this part of the light-emitting devices in the first display area AA1 does not emit light. In this way, when the display panel 10 displays an image, the light-emitting device for displaying the image near the edge of the display panel 10 is the first light-emitting device 1, which can avoid color deviation at the edge of the display panel 10.

[0159] In some embodiments, Fig.16 As shown, a row of black-filled light-emitting devices arranged along the boundary line J of the first display area AA1 on the uppermost side are second light-emitting devices 2, and another row of light-emitting devices adjacent to the row of second light-emitting devices 2 are all first light-emitting devices 1; that is, the first row of light-emitting devices on the uppermost side are second light-emitting devices 2, and the second row of light-emitting devices are first light-emitting devices 1, so that the first row of black-filled second light-emitting devices 2 may not be connected to the pixel circuit, and when the display panel 10 displays an image, the light-emitting devices for emitting light for display at the uppermost edge are all first light-emitting devices 1 (first color light-emitting devices), thereby avoiding color deviation at the upper edge of the display panel 10.

[0160] In this way, the number of light-emitting devices and pixel circuits in the display panel 10 will not be increased, and therefore, the manufacturing cost of the display panel 10 will not be increased. In addition, the effect of avoiding color deviation of the uppermost edge of the display panel 10 can be achieved.

[0161] In other embodiments, Fig.16 As shown, a row of black-filled light-emitting devices arranged along the boundary line J of the first display area AA1 at the bottom are third light-emitting devices 3, and another row of light-emitting devices adjacent to the row of third light-emitting devices 3 are all first light-emitting devices 1; that is, the first row of light-emitting devices at the bottom are third light-emitting devices 3, and the second row of light-emitting devices are first light-emitting devices 1, so that the first row of black-filled third light-emitting devices 3 may not be connected to the pixel circuit, and when the display panel 10 displays an image, the light-emitting devices for emitting light for display at the bottom edge are all first light-emitting devices 1 (first color light-emitting devices), thereby avoiding color deviation at the bottom edge of the display panel 10.

[0162] In this way, the number of light-emitting devices and pixel circuits in the display panel 10 will not be increased, and therefore, the manufacturing cost of the display panel 10 will not be increased. In addition, the effect of avoiding color deviation of the lower edge of the display panel 10 can be achieved.

[0163] In other embodiments, Fig.16 As shown, on the left side along the boundary line J( Fig.16 The first row of light emitting devices arranged along the target boundary line (JJ) shown in FIG. 1 includes second light emitting devices 2 and third light emitting devices 3 which are arranged alternately.

[0164] In this case, a second display area AA2 may be provided on the left side of the first display area AA1, and a plurality of fourth light-emitting devices 4 arranged along the target boundary line JJ may be provided in the second display area AA2. Thus, when the display panel 10 displays an image, the light-emitting devices used for luminous display at the leftmost edge are all fourth light-emitting devices 4 (first color light-emitting devices), thereby preventing the display panel 10 from displaying color deviation at the leftmost edge.

[0165] In this way, referring to the above description, this part of the fourth light-emitting device 4 can be prepared simultaneously with the first light-emitting device 1. By arranging this part of the fourth light-emitting device 4, the color deviation of the display panel 10 at the left edge can be avoided without adding additional preparation steps of the display panel 10.

[0166] Or, if Fig.16 As shown, on the left side along the boundary line J( Fig.16 The second row of light-emitting devices arranged along the target boundary line JJ shown in the figure are all first light-emitting devices 1. Therefore, the second light-emitting devices 2 and the third light-emitting devices 3 arranged alternately in the first row may not be connected to the pixel circuit. When the display panel 10 displays an image, the light-emitting devices for emitting light and display at the leftmost edge are all first light-emitting devices 1 (first color light-emitting devices), thereby avoiding color deviation at the left edge of the display panel 10.

[0167] In this way, the number of light-emitting devices and pixel circuits in the display panel 10 will not be increased, and therefore, the manufacturing cost of the display panel 10 will not be increased. In addition, the effect of avoiding color deviation at the leftmost edge of the display panel 10 can be achieved.

[0168] The above-mentioned row of light emitting devices and another row of light emitting devices adjacent to the row of light emitting devices are light emitting devices arranged along the same boundary line J of the first display area AA1.

[0169] In other embodiments, Fig.17 As shown, each light emitting device (first light emitting device 1, second light emitting device 2 and third light emitting device 4) in the first display area AA1 is connected to a pixel circuit respectively. When the display panel 10 displays an image, the light emitting devices in the first display area AA1 emit light under the drive of the pixel circuit.

[0170] As mentioned above, the fourth light-emitting device 4 in the second display area AA2 is used to correct the edge display color deviation of the display panel 10, and the fourth light-emitting device 4 has the same light-emitting color as the first light-emitting device 1. The first light-emitting device 1 and the fourth light-emitting device 4 are both first-color light-emitting devices. Therefore, when the display panel 10 displays an image, the fourth light-emitting device 4 and the first light-emitting device 1 can be connected to the same pixel circuit. When the display panel 10 displays an image, multiple (two or more) first-color light-emitting devices are driven to emit light through one pixel circuit.

[0171] Based on this, in some embodiments, such as Fig.17 As shown, among the plurality of first light-emitting devices 1, at least one of the first light-emitting devices 1 closest to the target boundary line JJ is a selected first light-emitting device 1a, and the selected first light-emitting device 1a and at least one fourth light-emitting device 4 are connected to the same pixel circuit. Each of the plurality of pixel circuits included in the display panel 10 is electrically connected to at least one light-emitting device.

[0172] At least one first light emitting device 1 ( Fig.17 The selected first light-emitting device 1a) and at least one fourth light-emitting device 4 adjacent thereto shown in the figure may be connected to the same pixel circuit. Thus, when the display panel 10 displays an image, multiple (two or more) first color light-emitting devices may emit light through one pixel circuit, thereby reducing the number of pixel circuits in the display panel 10 and reducing the cost of the display panel 10.

[0173] In some embodiments, Fig.17 As shown, the geometric centers of the selected first light-emitting device 1a and at least one fourth light-emitting device 4 connected to the same pixel circuit are sequentially connected to form a preset shape S, and the preset shapes S corresponding to different pixel circuits do not intersect each other.

[0174] like Fig.17 As shown, multiple pixel circuits may be arranged in the first display area AA1, and each of the multiple (two or more) first color light emitting devices connected to the same pixel circuit is connected to the pixel circuit via a connecting line. The multiple (two or more) first color light emitting devices connected to the same pixel circuit are regarded as a first color light emitting device group, and each group of first color light emitting devices realizes light display under the drive of the same pixel circuit. The connecting lines of the first color light emitting devices in the same first color light emitting device group may be electrically insulated from each other, or partially connected; the connecting lines of different first color light emitting device groups are electrically insulated from each other, so as to avoid short circuits between different first color light emitting device groups.

[0175] For example, Fig.17 , Fig.18 , Fig.19 , Fig. 20 , Fig.21 , Fig. 22 and Fig.23 As shown, the shape formed by connecting the geometric centers of the selected first light-emitting device 1a and at least one fourth light-emitting device 4 connected to the same pixel circuit in sequence includes at least one of a straight line, a broken line, a curve (such as a wavy or irregular curve), a triangle, a rectangle or a trapezoid.

[0176] The preset shapes S corresponding to different pixel circuits in the display panel 10 include but are not limited to the above, and can be adaptively designed according to the different specific arrangements of the light-emitting devices in the display panel 10. This is an exemplary description of some possible implementations of the present disclosure and is not intended to be a limitation of the present disclosure.

[0177] In some embodiments, Fig.17 , Fig.18 , Fig.19 , Fig. 20 , Fig.21 , Fig. 22 and Fig.23 As shown, among the plurality of fourth light-emitting devices 4 adjacent to the selected first light-emitting device 1a, at least one fourth light-emitting device 4 relatively close to the selected first light-emitting device 1a is connected to the same pixel circuit as the selected first light-emitting device 1a.

[0178] In this way, the sum of the lengths of the connecting lines between the multiple first color light-emitting devices (selected first light-emitting devices 1a and at least one fourth light-emitting device 4) and the corresponding pixel circuits in the display panel 10 can be minimized, which is beneficial to reducing the preparation cost of the display panel 10.

[0179] The light emitting color of the light emitting device located at the corner of the display panel 10 has a weak effect on the edge display effect of the display panel 10. Therefore, at least part of the fourth light emitting device 4 located at the corner of the display panel 10 may not be connected to the pixel circuit.

[0180] Based on this, in some embodiments, such as Fig.18 , Fig.19 , Fig. 20 , Fig.21 , Fig. 22 and Fig.23 As shown, at least one fourth light emitting device 4 located at a corner of the display panel 10 is not connected to the pixel circuit.

[0181] like Figures 2 to 23As shown, the pixel P arrangement in the display panel 10 and the multiple light-emitting devices in the first display area AA1 include but are not limited to the methods described in the text part of the present disclosure and the methods shown in the drawings, and can also be applied to more different pixel P arrangements and light-emitting device arrangements.

[0182] The above is only a specific embodiment of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions that can be thought of by any person skilled in the art within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A display panel, characterized in that: The display panel has a first display area and a second display area, wherein the second display area is located outside the first display area and adjacent to the first display area; the display panel includes: A plurality of first light emitting devices, a plurality of second light emitting devices and a plurality of third light emitting devices are arranged in the first display area, and the light emitting colors of the first light emitting devices, the second light emitting devices and the third light emitting devices are different from each other; a plurality of fourth light-emitting devices, which are arranged in the second display area and have the same light-emitting color as the first light-emitting device; a portion of the boundary line of the first display area adjacent to the second display area is a target boundary line, and the plurality of fourth light-emitting devices are arranged at intervals along the target boundary line; The plurality of light-emitting devices in the first display area that are closest to the target boundary line include at least one of the second light-emitting device and the third light-emitting device.

2. The display panel according to claim 1, characterized in that: The plurality of fourth light emitting devices are arranged in at least one row, and the fourth light emitting devices in each row are arranged at intervals along the target boundary line of the first display area.

3. The display panel according to claim 2, characterized in that: The second display area is located on one side of the first display area in the first direction, the plurality of fourth light emitting devices are arranged in at least one column, and the fourth light emitting devices in each column are arranged at intervals along the second direction; and / or, The second display area is located at one side of the first display area in the second direction, the plurality of fourth light emitting devices are arranged in at least one row, and the fourth light emitting devices in each row are arranged at intervals along the first direction; The first direction and the second direction are perpendicular to each other.

4. The display panel according to claim 3, characterized in that: The arrangement rule of the plurality of first light emitting devices is the same as the arrangement rule of the plurality of fourth light emitting devices.

5. The display panel according to claim 3, characterized in that: The multiple first light-emitting devices and the multiple fourth light-emitting devices are all first color light-emitting devices, and the multiple first color light-emitting devices are arranged in multiple rows and columns, the first color light-emitting devices in each row are arranged along the first direction, and the first color light-emitting devices in each column are arranged along the second direction.

6. The display panel according to claim 3, characterized in that: The multiple first light-emitting devices and the multiple fourth light-emitting devices are first color light-emitting devices, and the multiple first color light-emitting devices are arranged in multiple rows. The first color light-emitting devices in each row are arranged along the first direction, and the first color light-emitting devices in two adjacent rows are staggered in the second direction.

7. The display panel according to claim 3, characterized in that: The distance between the first light emitting device and the fourth light emitting device adjacent to each other in the first direction is equal to the distance between two adjacent first light emitting devices in the first direction; and / or, A distance between the first light emitting device and the fourth light emitting device adjacent to each other in the second direction is equal to a distance between two of the first light emitting devices adjacent to each other in the second direction.

8. The display panel according to claim 3, characterized in that: The distance between two adjacent fourth light-emitting devices in the first direction is equal to the distance between two adjacent first light-emitting devices in the first direction; and / or, A distance between two adjacent fourth light emitting devices in the second direction is equal to a distance between two adjacent first light emitting devices in the first direction.

9. The display panel according to claim 3, characterized in that: An arrangement density of the plurality of fourth light emitting devices is greater than an arrangement density of the plurality of first light emitting devices.

10. The display panel according to claim 3 or 9, characterized in that: The distance between two adjacent fourth light-emitting devices in the first direction is smaller than the distance between two adjacent first light-emitting devices in the first direction; and / or, A distance between two adjacent fourth light emitting devices in the second direction is smaller than a distance between two adjacent first light emitting devices in the second direction.

11. The display panel according to any one of claims 1 to 9, characterized in that: A light emitting area of ​​the fourth light emitting device is greater than or equal to a light emitting area of ​​the first light emitting device.

12. The display panel according to any one of claims 1 to 9, characterized in that: The display panel further includes: A plurality of pixel circuits, each of the pixel circuits being electrically connected to at least one light emitting device; Among the plurality of first light-emitting devices, at least one first light-emitting device that is closest to the target boundary line is a selected first light-emitting device; the selected first light-emitting device and at least one fourth light-emitting device are connected to the same pixel circuit.

13. The display panel according to claim 12, characterized in that: Among the plurality of fourth light-emitting devices adjacent to the selected first light-emitting device, at least one fourth light-emitting device relatively close to the selected first light-emitting device is connected to the same pixel circuit as the selected first light-emitting device.

14. The display panel according to claim 12, characterized in that: A shape formed by sequentially connecting the geometric centers of the selected first light-emitting device and at least one of the fourth light-emitting devices connected to the same pixel circuit includes at least one of a straight line, a triangle, a rectangle or a trapezoid.

15. The display panel according to claim 12, characterized in that: The geometric centers of the selected first light emitting device and at least one fourth light emitting device connected to the same pixel circuit are sequentially connected to form a preset shape; The preset shapes corresponding to different pixel circuits do not intersect each other.

16. The display panel according to claim 12, characterized in that: At least one of the fourth light emitting devices located at a corner of the display panel is not connected to the pixel circuit.

17. The display panel according to any one of claims 1 to 9, characterized in that: The light emitting color of the first light emitting device is blue, the light emitting color of one of the second light emitting device and the third light emitting device is red, and the light emitting color of the other of the second light emitting device and the third light emitting device is green.

18. A display device, characterized in that: include: The display panel according to any one of claims 1 to 17; and, The driving circuit is connected to the display panel.

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