CN113178473B

CN113178473B - Display panel and display device

Info

Publication number: CN113178473B
Application number: CN202110462498.3A
Authority: CN
Inventors: 楼均辉; 吴勇; 葛林; 许传志
Original assignee: Hefei Visionox Technology Co Ltd
Current assignee: Hefei Visionox Technology Co Ltd
Priority date: 2021-04-27
Filing date: 2021-04-27
Publication date: 2023-08-22
Anticipated expiration: 2041-04-27
Also published as: CN113178473A

Abstract

The invention discloses a display panel and a display device, wherein the display panel is provided with a first display area, a transition display area and a second display area, the transition display area is positioned between the first display area and the second display area, the light transmittance of the first display area is larger than that of the transition display area, and the display panel comprises: a plurality of sub-pixels, the sub-pixels including a first sub-pixel located in the first display area; a pixel circuit including a first pixel circuit for driving the first sub-pixel; a signal line including a first signal line located in the transition display region; the first signal line comprises a first subsection and a second subsection which are connected in sequence, the first subsection is used for connecting first pixel circuits located in different rows, the second subsection is used for connecting first pixel circuits located in different columns, and the material of the second subsection comprises transparent material. The invention can improve the display difference between the second display area and the transitional display area caused by bending of the first signal line and improve the display effect of the display panel.

Description

Display panel and display device

Technical Field

The invention relates to the field of display, in particular to a display panel and a display device.

Background

With the rapid development of electronic devices, the requirements of users on screen ratio are higher and higher, so that the full-screen display of the electronic devices is receiving more and more attention from the industry.

Conventional electronic devices such as mobile phones, tablet computers, and the like need to integrate such as front cameras, handsets, and infrared sensing elements. In the prior art, a display screen may be provided with a slot (Notch) or an opening, and external light may enter a photosensitive element located below the screen through the slot or the opening. However, none of these electronic devices is a truly full screen, and cannot display in all areas of the entire screen, for example, the area corresponding to the front camera cannot display a picture.

Disclosure of Invention

The embodiment of the invention provides a display panel and a display device, which realize that at least part of the area of the display panel is transparent and displayable, and are convenient for the under-screen integration of a photosensitive assembly.

An embodiment of a first aspect of the present invention provides a display panel having a first display region, a transition display region, and a second display region, the transition display region being located between the first display region and the second display region, a light transmittance of the first display region being greater than a light transmittance of the transition display region, the display panel comprising: a plurality of sub-pixels arranged in rows and columns along a first direction and a second direction and including a first sub-pixel located in a first display area; a pixel circuit including a first pixel circuit for driving the first sub-pixel and located in the transition display area; the signal line comprises a first signal line positioned in the transitional display area, and the first signal line is connected with a plurality of first pixel circuits used for driving first sub-pixels in the same column; the first signal line comprises a first subsection and a second subsection which are connected in sequence, the first subsection is used for connecting the first pixel circuits positioned in different rows, the second subsection is used for connecting the first pixel circuits positioned in different columns, and the material of the second subsection comprises transparent materials.

According to an embodiment of the first aspect of the present invention, further comprising: and the connecting wire is arranged in the same row as the first sub-pixel connected with the first pixel circuit, extends along the first direction and is used for connecting the first sub-pixel and the first pixel circuit, and the material of the connecting wire comprises a transparent material.

According to any of the foregoing embodiments of the first aspect of the present invention, the connecting wire and the second section are layered and of the same material.

According to any of the foregoing embodiments of the first aspect of the present invention, the plurality of sub-pixels further includes a transition sub-pixel located in the transition display area;

the pixel circuit also comprises a transition pixel circuit which is used for driving the transition sub-pixel and is positioned in the transition display area;

the signal line also comprises a transition signal line positioned in the transition display area, the transition signal line is connected with a plurality of transition pixel circuits for driving the same-column transition sub-pixels, and a first signal line and a transition signal line which are positioned in the same column and correspond to the first sub-pixels and the transition sub-pixels are mutually connected.

According to any one of the foregoing embodiments of the first aspect of the present invention, among the first signal lines and the transition signal lines corresponding to the first sub-pixels and the transition sub-pixels in the same column, the transition signal line is located on at least one side of the first sub-pixels in the column in the second direction.

According to any of the foregoing embodiments of the first aspect of the present invention, the size of the first subpixel is smaller than the size of the transition subpixel of the same color.

According to any of the foregoing embodiments of the first aspect of the present invention, the plurality of sub-pixels further includes a second sub-pixel located in the second display area;

the pixel circuit also comprises a second pixel circuit which is used for driving a second sub-pixel and is positioned in a second display area;

the signal line also comprises a second signal line positioned in the second display area, and the second signal line is connected with a plurality of second pixel circuits for driving second sub-pixels in the same column;

the number of columns of the second sub-pixels and the number of the second signal lines form a first ratio, and the sum of the number of columns of the transition sub-pixels and the number of the first signal lines and the number of the transition signal lines forms a second ratio, wherein the first ratio is equal to the second ratio.

According to any of the foregoing embodiments of the first aspect of the present invention, the size of the first subpixel is smaller than the size of the second subpixel of the same color.

According to any of the foregoing embodiments of the first aspect of the present invention, the size of the transition sub-pixel is smaller than the size of the second sub-pixel of the same color.

According to any one of the embodiments of the first aspect of the present invention, the second sub-pixels and the second pixel circuits are disposed in one-to-one correspondence;

More than two first sub-pixels are connected to the same first pixel circuit and/or more than two transition sub-pixels are connected to the same transition pixel circuit.

According to any one of the embodiments of the first aspect of the present invention, two or more adjacent first sub-pixels of the same color are connected to the same first pixel circuit.

According to any of the foregoing embodiments of the first aspect of the present invention, two or more adjacent transition sub-pixels of the same color are connected to the same transition pixel circuit.

According to any one of the embodiments of the first aspect of the present invention, the first signal line is connected to one end of the transition signal line;

or, the first signal line is connected between two ends of the transition signal lines, at least one transition signal line comprises a third part and a fourth part, the third part and at least part of the first signal line are overlapped along the second direction, the fourth part and the first signal line are arranged in a staggered manner along the second direction, and the material of the third part comprises a transparent material.

According to any of the foregoing embodiments of the first aspect of the present invention, the third section and the second section are layered and disposed with the same material.

According to any of the foregoing embodiments of the first aspect of the present invention, the fourth subsection and the first subsection are layered and disposed in the same material.

According to any one of the foregoing embodiments of the first aspect of the present invention, the display panel further includes:

a substrate;

the fourth division and the first division are positioned on the first conductive layer;

the second conductive layer, the third subsection and the second subsection are positioned on the second conductive layer, and the first conductive layer and the second conductive layer are sequentially distributed on the same side of the substrate;

the insulating layer is positioned between the first conductive layer and the second conductive layer, and a connecting opening is formed in the insulating layer so that the first signal line and the transition signal line are connected with each other through the connecting opening.

According to any of the foregoing embodiments of the first aspect of the present invention, the second conductive layer is located on a side of the first conductive layer facing away from the substrate, or the second conductive layer is located on a side of the first conductive layer facing toward the substrate.

According to any of the foregoing embodiments of the first aspect of the present invention, further comprising:

the pixel definition layer is positioned on one side of the first conductive layer and one side of the second conductive layer, which are away from the substrate, and comprises a first pixel opening positioned in the first display area;

the first sub-pixel comprises a first light emitting structure, a first electrode and a second electrode, wherein the first light emitting structure is positioned in the first pixel opening, the first electrode is positioned on one side of the first light emitting structure facing the substrate, and the second electrode is positioned on one side of the first light emitting structure facing away from the substrate.

According to any of the foregoing embodiments of the first aspect of the present invention, the orthographic projection of each first light emitting structure on the substrate is composed of one first graphic unit or is composed of a concatenation of two or more first graphic units, the first graphic unit including at least one selected from the group consisting of a circle, an ellipse, a dumbbell, a gourd, and a rectangle.

According to any of the foregoing embodiments of the first aspect of the present invention, the orthographic projection of each first electrode on the substrate is composed of one second graphic unit or is composed of a concatenation of two or more second graphic units, the second graphic unit including at least one selected from the group consisting of a circle, an ellipse, a dumbbell, a gourd, and a rectangle.

According to any one of the preceding embodiments of the first aspect of the present invention, the first electrode is a light-transmitting electrode.

According to any of the foregoing embodiments of the first aspect of the present invention, the first electrode is a reflective electrode.

According to any of the preceding embodiments of the first aspect of the invention, the first electrode comprises an indium tin oxide layer or an indium zinc oxide layer.

According to any of the foregoing embodiments of the first aspect of the present invention, the second electrode includes a magnesium-silver alloy layer.

According to any one of the foregoing embodiments of the first aspect of the present invention, the transition display area has a plurality of annular areas surrounding the periphery of the first display area and concentrically distributed with the first display area, and the first pixel circuits for driving the first sub-pixels in the same row are sequentially distributed in the same annular area;

The first display area is symmetrically arranged about a second symmetry axis, the second symmetry axis extends along a second direction, the second symmetry axis passes through the center of the first display area, first pixel circuits corresponding to two rows of first sub-pixels symmetrically distributed about the second symmetry axis are located in the same annular area, and the first pixel circuits are located at one side, away from the second symmetry axis, of the connected first sub-pixels;

two transition signal lines for connecting the first pixel circuits in the same annular region are symmetrically arranged about the second symmetry axis.

According to any one of the foregoing embodiments of the first aspect of the present invention, the plurality of first pixel circuits are symmetrically disposed about a second symmetry axis, and the plurality of transition signal lines are symmetrically disposed about the second symmetry axis.

According to any one of the foregoing embodiments of the first aspect of the present invention, the plurality of first pixel circuits are symmetrically disposed about a first symmetry axis extending along the first direction, the first symmetry axis passes through a center of the first display region, and the transition signal line is symmetrically disposed about the first symmetry axis.

According to any of the foregoing embodiments of the first aspect of the present invention, the first display area has a circular shape, an elliptical shape or a regular polygon shape.

An embodiment of a second aspect of the present invention provides a display device, including the display panel of any one of the embodiments of the first aspect.

In the display panel provided by the embodiment of the first aspect of the invention, the light transmittance of the first display area is larger than that of the transition display area, so that the display panel can integrate the photosensitive assembly on the back surface of the first display area, the under-screen integration of the photosensitive assembly of a camera for example is realized, meanwhile, the first display area can display pictures, the display area of the display panel is increased, and the overall screen design of the display device is realized.

In the display panel provided by the embodiment of the first aspect of the invention, the first pixel circuit for driving the first sub-pixel is positioned in the transition display area, and the first signal line connected with the first pixel circuit is positioned in the transition display area, so that the wiring of the first display area can be reduced, and the light transmittance of the first display area can be improved. The first signal line includes a first section and a second section connected in succession, the first section being for connecting first pixel circuits located in different rows in the second direction, and then the first section extending in the second direction. The second sub-section is used for connecting the first pixel circuits located in different columns in the first direction, and then the second sub-section extends along the first direction. The material of the second subsection comprises transparent materials, so that display difference between the second display area and the transition display area caused by bending of the first signal line can be improved, and display effect of the display panel is improved.

Drawings

Other features, objects and advantages of the present invention will become more apparent upon reading the following detailed description of non-limiting embodiments, taken in conjunction with the accompanying drawings, in which like reference characters designate the same or similar features, and in which the figures are not to scale.

Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the first aspect of the present invention;

FIG. 2 illustrates a partial enlarged view of the Q area of FIG. 1 in one example;

FIG. 3 illustrates a partially enlarged schematic construction of FIG. 2 in one example;

FIG. 4 illustrates a partially enlarged schematic construction of FIG. 2 in another example;

FIG. 5 shows a close-up view of the Q area of FIG. 1 for another example;

FIG. 6 shows a schematic view of the partial enlarged structure of FIG. 2 in yet another example;

FIG. 7 shows a schematic view of the partial enlarged structure of FIG. 2 in yet another example;

fig. 8 shows a partial cross-sectional view of fig. 3.

Reference numerals illustrate:

10. a display panel; 101. a substrate; 102. a first conductive layer; 103. a second conductive layer; 104. an insulating layer; 105. a pixel definition layer; 106. a pixel electrode layer;

110. a first subpixel; 111. a first light emitting structure; 112. a first electrode; 113. a second electrode; 120. a transition sub-pixel; 121. a second light emitting structure; 122. a third electrode; 123. a fourth electrode; 130. a second subpixel;

210. A first pixel circuit; 220. a transition pixel circuit; 230. a second pixel circuit;

310. a first signal line; 311. a first subsection; 312. a second subsection; the method comprises the steps of carrying out a first treatment on the surface of the 320. A transition signal line; 321. a third subsection; 322. a fourth division; 330. a second signal line;

400. connecting wires;

AA1, a first display area; AA2, a transitional display area; AA3, a second display area;

m, a first symmetry axis; n, a second axis of symmetry;

x, a first direction; y, second direction.

Detailed description of the preferred embodiments

Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and the detailed embodiments. It should be understood that the specific embodiments described herein are merely configured to illustrate the invention and are not configured to limit the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by showing examples of the invention.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.

It will be understood that when a layer, an area, or a structure is described as being "on" or "over" another layer, another area, it can be referred to as being directly on the other layer, another area, or another layer or area can be included between the layer and the other layer, another area. And if the component is turned over, that layer, one region, will be "under" or "beneath" the other layer, another region.

On an electronic device such as a mobile phone and a tablet computer, a photosensitive element such as a front camera, an infrared light sensor, a proximity light sensor, or the like needs to be integrated on one side of the display panel 10. In some embodiments, a transparent display area may be disposed on the electronic device, and the photosensitive component is disposed on the back of the transparent display area, so as to implement full screen display of the electronic device under the condition that the photosensitive component is ensured to work normally.

To improve the light transmittance of the light-transmitting display area, the driving circuit of the light-transmitting area is often disposed in the non-light-transmitting area, which may cause that the driving circuits of the sub-pixels in the same column in the display panel 10 may not be in the same column, and it is difficult to drive the sub-pixels of the display panel 10 row by row.

In order to solve the above-mentioned problems, embodiments of the present invention provide a display panel 10 and a display device, and embodiments of the display panel 10 and the display device will be described below with reference to the accompanying drawings.

Embodiments of the present invention provide a display panel 10, which display panel 10 may be an organic light emitting diode (Organic Light Emitting Diode, OLED) display panel 10.

Fig. 1 shows a schematic top view of a display panel 10 according to an embodiment of the invention.

As shown in fig. 1, the display panel 10 has a first display area AA1, a transition display area AA2, a second display area AA3, and a non-display area NA surrounding the first display area AA1, the transition display area AA2, and the second display area AA3, wherein the light transmittance of the first display area AA1 is greater than the light transmittance of the transition display area AA 2. Optionally, the light transmittance of the first display area AA1 is greater than the light transmittance of the second display area AA 3.

Herein, it is preferable that the light transmittance of the first display area AA1 is greater than or equal to 15%. To ensure that the light transmittance of the first display area AA1 is greater than 15%, even greater than 40%, even higher, the light transmittance of each functional film layer of the display panel 10 in this embodiment is greater than 80%, and even at least a portion of the functional film layers is greater than 90%.

According to the display panel 10 of the embodiment of the invention, the light transmittance of the first display area AA1 is greater than the light transmittance of the transition display area AA2, so that the display panel 10 can integrate the photosensitive assembly on the back of the first display area AA1, thereby realizing the under-screen integration of the photosensitive assembly such as a camera, and simultaneously, the first display area AA1 can display pictures, thereby improving the display area of the display panel 10 and realizing the overall screen design of the display device.

The number of the first display area AA1 and the transition display area AA2 is multiple, for example, the number of the first display area AA1 and the transition display area AA2 is 1, which is used for realizing the under-screen integration of the photosensitive assembly or for realizing fingerprint identification. Alternatively, in other alternative embodiments, the number of the first display area AA1 and the transition display area AA2 is two, where one set of the first display area AA1 and the transition display area AA2 is used to implement the under-screen integration of the photosensitive assembly, and the other set of the first display area AA1 and the transition display area AA2 is used to implement fingerprint recognition.

Referring to fig. 2 and 3 together, fig. 2 is a schematic diagram of a partial enlarged structure of the Q region in fig. 1. Fig. 3 is a partially enlarged structural view of the upper left quarter area in fig. 2.

As shown in fig. 2 and 3, the display panel 10 provided in the embodiment of the present invention includes: a plurality of sub-pixels arranged in rows and columns in a first direction (X direction in fig. 2) and a second direction (Y direction in fig. 2) and including first sub-pixels 110 located in the first display area AA 1; a pixel circuit including a first pixel circuit 210 for driving the first sub-pixel 110 and located in the transitional display area AA 2; a signal line including a first signal line 310 located in the transition display area AA2, the first signal line 310 being connected to a plurality of first pixel circuits 210 for driving the same column of first sub-pixels 110; the plurality of first pixel circuits 210 for driving the first sub-pixels 110 of the same column are located in at least two columns adjacent in the first direction and at least two rows adjacent in the second direction, the first signal line 310 includes a first portion 311 and a second portion 312 connected in succession, the first portion 311 is used for connecting the first pixel circuits 210 located in different rows, the second portion 312 is used for connecting the first pixel circuits 210 located in different columns, and the material of the second portion 312 includes a transparent material.

Among the plurality of first pixel circuits 210 for driving the same column of the first sub-pixels 110, the plurality of first sub-pixel 110 circuits may be used to drive the first sub-pixels 110 of one column or to drive the first sub-pixels 110 of more than two columns. The embodiment of the invention is exemplified by taking the second direction as the column direction and taking the first direction as the row direction.

In the display panel 10 provided in the embodiment of the first aspect of the present invention, the first pixel circuit 210 for driving the first sub-pixel 110 is located in the transitional display area AA2, and the first signal line 310 connected to the first pixel circuit 210 is located in the transitional display area AA2, so that the wiring of the first display area AA1 can be reduced, and the light transmittance of the first display area AA1 can be improved. The first signal line 310 includes a first sub 311 and a second sub 312 connected one after another, the first sub 311 being for connecting the first pixel circuits 210 located in different rows in the second direction, and then the first sub 311 extending in the second direction. The second sub-portion 312 is used to connect the first pixel circuits 210 located in different columns in the first direction, and then the second sub-portion 312 extends along the first direction. The material of the second sub portion 312 includes a transparent material, which can improve the display difference between the second display area AA3 and the transitional display area AA2 due to the bending of the first signal line 310, and improve the display effect of the display panel 10.

The signal lines are, for example, data lines, and the embodiment of the invention is exemplified by using the signal lines as the data lines. In other embodiments, the signal lines may also be scan lines.

The plurality of first pixel circuits 210 for driving the first sub-pixels 110 of the same column are located in at least two columns adjacent along the first direction and at least two rows adjacent along the second direction: one or more first pixel circuits 210 may be provided in the same row, and one or more first pixel circuits 210 may be provided in the same column.

For example, when the first pixel circuits 210 are arranged in the same row as the first sub-pixels 110 connected thereto, the two first pixel circuits 210 connected to the second section 312 are located in two adjacent columns, and the two first pixel circuits 210 connected to the second section 312 may be located in two adjacent columns or two non-adjacent columns. Among the plurality of first pixel circuits 210 for driving the first sub-pixels 110 of the same column, there is one first pixel circuit 210 in the same row, and there are one or more than two first pixel circuits 210 in one column.

The data lines corresponding to the sub-pixels of the transitional display area AA2 and the second display area AA3 are generally formed by extending along the second direction, while the first signal line 310 corresponding to the sub-pixels of the first display area AA1 is formed by extending along the folded path, the first portion 311 of the first signal line 310 is disposed parallel to the data lines corresponding to the sub-pixels of the transitional display area AA2 and the second display area AA3, and the second portion 312 is disposed intersecting the data lines corresponding to the sub-pixels of the transitional display area AA2 and the second display area AA3, and if the first portion 311 and the second portion 312 are made of the same material (e.g., metal) as the data lines corresponding to the sub-pixels of the transitional display area AA2 and the second display area AA3, the display effect of the transitional display area AA2 is different from that of the second display area AA 3. In the embodiment of the present invention, the material of the second sub portion 312 includes a transparent material, so that the display difference between the second display area AA3 and the transitional display area AA2 caused by bending the first signal line 310 can be improved, and the display effect of the display panel 10 can be improved.

In addition, in the plurality of first pixel circuits 210 for driving the first sub-pixels 110 of the same column: at least two adjacent first pixel circuits 210 are distributed along a first direction, at least two adjacent first pixel circuits 210 are distributed along a second direction, that is, at least two adjacent first pixel circuits 210 of two adjacent rows are arranged in a staggered manner corresponding to the first sub-pixels 110 in the same column, and at this time, the first signal line 310 extends along a step-shaped bending path and includes a first subsection 311 and a second subsection 312. The arrangement is such that the first signal lines 310 can be connected to the plurality of first pixel circuits 210 corresponding to the first sub-pixels 110 of the same column, and also such that adjacent two first signal lines 310 do not cross, ensuring mutual insulation between the adjacent first signal lines 310.

Referring to fig. 4, fig. 4 is a schematic diagram of a portion of the structure of fig. 3. In order to more clearly show the structure of the first signal line 310, fig. 4 is different from fig. 3 in that the pixel circuit and the sub-pixel are not illustrated.

In some alternative embodiments, the plurality of subpixels further includes a transition subpixel 120 located in the transition display area AA 2; the pixel circuit further includes a transition pixel circuit 220 for driving the transition sub-pixel 120 and located in the transition display area AA 2; the signal lines further include a transition signal line 320 located in the transition display area AA2, the transition signal line 320 is connected to the plurality of transition pixel circuits 220 for driving the same-column transition sub-pixels 120, and the first signal line 310 and the transition signal line 320 corresponding to the first sub-pixels 110 and the transition sub-pixels 120 located in the same column are connected to each other.

The extension path of the transition signal line 320 may be arranged in various manners, and optionally, the transition signal line 320 is formed by extending along a straight path, so as to facilitate the preparation of the transition signal line 320. Then, as shown in fig. 3, the signal line passing through the transitional display area AA2 and having a straight line shape is the transitional signal line 320, and the signal line passing through the transitional display area AA2 and having a bent shape is the first signal line 310 having the first portion 311 and the second portion 312.

Among the plurality of transition pixel circuits 220 for driving the same column of transition sub-pixels 120, the plurality of transition pixel circuits 220 may be the same as driving the transition sub-pixels 120 of one column or driving the transition sub-pixels 120 of more than two columns. In these alternative embodiments, the first signal lines 310 and the transition signal lines 320 corresponding to the first sub-pixels 110 and the transition sub-pixels 120 of the same column are connected to each other, and the first sub-pixels 110 and the transition sub-pixels 120 of the same column may be driven using the driving signals of the same column.

In some alternative embodiments, among the first signal line 310 and the transition signal line 320 corresponding to the same column of the first sub-pixels 110 and the transition sub-pixels 120, the transition signal line 320 is located at least one side of the column of the first sub-pixels 110 in the second direction, and the first signal line 310 extends along a folded path and is connected to the transition signal line 320.

In these alternative embodiments, the transition signal line 320 is located on one side of the first sub-pixel 110 in the column, the first signal line 310 is located on one side of the first sub-pixel 110 in the column in the first direction, and the first signal line 310 may be connected to the transition signal line 320 after extending along the folded path, and the first sub-pixel 110 and the transition sub-pixel 120 located in the column may be driven by the same signal, so as to implement column-by-column driving.

Alternatively, the transitional display area AA2 has a plurality of annular areas surrounding the periphery of the first display area AA1 and concentrically distributed with the first display area AA1, and the first pixel circuits 210 are disposed in the same row with the first sub-pixels 110 connected thereto, and the first pixel circuits 210 for driving the same-row first sub-pixels 110 are sequentially distributed in the same annular area.

In the display panel 10 provided in the embodiment of the first aspect of the present invention, the first pixel circuits 210 for driving the same-column first sub-pixels 110 are sequentially distributed in the same annular region, so that the first signal lines 310 corresponding to the same-column first sub-pixels 110 can be sequentially connected to the first pixel circuits 210 in the annular region. Since the first pixel circuits 210 corresponding to the first sub-pixels 110 of different columns are located in different annular regions, the different first signal lines 310 extend in the different annular regions to connect the first pixel circuits 210, so that two adjacent first signal lines 310 do not intersect, and signal crosstalk can be avoided.

In some alternative embodiments, as shown in fig. 3 and 4, the display panel 10 further includes: the connection wire 400 is disposed in the same row as the first subpixel 110 to which the first pixel circuit 210 is connected, and the connection wire 400 extends in the first direction and is used to connect the first subpixel 110 and the first pixel circuit 210, and the material of the connection wire 400 includes a transparent material. Only one of the first sub-pixels 110 and the first pixel connection is schematically shown in fig. 3 and 4, and in the embodiment shown in fig. 3 and 4, the first pixel circuit 210 and the first sub-pixel 110 may be arranged in a one-to-one correspondence.

In these alternative embodiments, a connection wire 400 is provided in order to connect the first pixel circuit 210 and the first sub-pixel 110 to each other. A portion of the connection wire 400 is located in the first display area AA1, and another portion of the connection wire 400 is located in the transition display area AA2. The connection wire 400 of the transitional display area AA2 is more than the connection wire 400 of the second display area AA3, and the transitional display area AA2 has a part of the connection wire 400, but the second display area AA3 has no connection wire 400, which may cause a display difference between the transitional display area AA2 and the second display area AA 3. The material of the connection wire 400 includes a transparent material, which can improve light transmittance of the first display area AA1 on the one hand and display differences between the transitional display area AA2 and the second display area AA3 on the other hand.

Optionally, the connection wire 400 and the second sub-portion 312 are disposed on the same layer, so that the manufacturing process of the display panel 10 can be simplified, and the manufacturing efficiency of the display panel 10 can be improved.

Referring to fig. 5, fig. 5 is a schematic diagram of a partial enlarged structure at Q in fig. 1 in another embodiment. The transition pixel circuit 220 is omitted from fig. 4 for better illustration of the structure of the first pixel circuit 210.

Fig. 3 and 5 illustrate the positions of one of the first signal line 310 and the transition signal line 320, and the first signal line 310 and the transition signal line 320 may be disposed at other positions as long as the first signal line 310 can be connected to the first pixel circuit 210 and the transition signal line 320 can be connected to the transition pixel circuit 220.

Alternatively, when the first display area AA1 has more than two columns of the first sub-pixels 110, the first pixel circuits 210 connected to the more than two columns of the first sub-pixels 110 may be located in different annular areas.

In other alternative embodiments, as shown in fig. 3 and 5, the first display area AA1 is symmetrically disposed about a second symmetry axis N, the second symmetry axis extends along the second direction, the second symmetry axis N passes through the center of the first display area AA1, the first pixel circuits 210 corresponding to two columns of first sub-pixels 110 symmetrically distributed about the second symmetry axis are located in the same annular area, and the first pixel circuits 210 are located on a side of the connected first sub-pixels 110 facing away from the second symmetry axis.

In these alternative embodiments, the first pixel circuits 210 corresponding to the two columns of the first sub-pixels 110 symmetrically distributed about the second symmetry axis are located in the same annular region, and the first pixel circuits 210 are located on a side of the first sub-pixels 110 connected thereto facing away from the second symmetry axis. Therefore, the first pixel circuits 210 corresponding to the two rows of the first sub-pixels 110 symmetrically distributed about the second symmetry axis are disposed on both sides of the second symmetry axis, and the first pixel circuits 210 do not cross each other even if they are located in the same annular region. In addition, in the embodiment of the present invention, the arrangement of the first pixel circuits 210 is more regular and convenient, and the distribution of the first pixel circuits 210 is more uniform, so that the color non-uniformity problem of the display panel 10 can be improved.

Alternatively, two transition signal lines 320 for connecting the first pixel circuits 210 within the same annular region are symmetrically distributed about the second symmetry axis. Since the first pixel circuits 210 corresponding to the two columns of first sub-pixels 110 symmetrically distributed about the second symmetry axis are located in the same annular region, the first pixel circuits 210 corresponding to the two columns of first sub-pixels 110 are distributed in the same annular region, and two first signal lines 310 are required to connect the first pixel circuits 210. The two first signal lines 310 are distributed about the second symmetry axis, facilitating a wiring arrangement and facilitating interconnection of the first pixel circuit 210 and the first signal line 310.

Optionally, the plurality of first pixel circuits 210 are symmetrically arranged about the second symmetry axis N. The arrangement of the plurality of first pixel circuits 210 is made more uniform, and the problem of color unevenness of the display panel 10 can be further improved.

Alternatively, the plurality of first pixel circuits 210 are symmetrically disposed about a first symmetry axis M extending along the first direction, and the first symmetry axis M passes through the center of the first display area AA 1.

The first display area AA1 may be arranged in various shapes, and the first display area AA1 may be, for example, regular polygon or circular. The embodiment of the present invention is exemplified by the first display area AA1 having a circular shape. In other embodiments, the shape of the first display area AA1 may be an ellipse or a regular polygon, for example, a square, an equilateral triangle, or the like.

When the first display area AA1 is circular, the annular area extends along the edge of the first display area AA1 to form a circular ring shape, and the plurality of first pixel circuits 210 are distributed in rows and columns, and the number of first pixel circuits 210 in one row is greater than the number of first pixel circuits 210 in another row among at least two adjacent rows of first pixel circuits 210.

In these alternative embodiments, when the first display area AA1 is circular, at least two adjacent rows of the first sub-pixels 110, wherein the number of the first sub-pixels 110 in one row is greater than the number of the first sub-pixels 110 in the other row. The edge of the first display area AA1 is in a ring shape, and in at least two adjacent rows of the first pixel circuits 210, the number of the first pixel circuits 210 in one row is greater than the number of the first pixel circuits 210 in another row, so that the arrangement pattern of the first pixel circuits 210 is matched with the arrangement pattern of the first sub-pixels 110, and the arrangement of the first pixel circuits 210 is more scientific.

Optionally, among the plurality of first pixel circuits 210 corresponding to the first sub-pixels 110 in the same column and located in different rows, some adjacent first pixel circuits 210 are disposed in a staggered manner.

In some embodiments, the circuit structure of the first pixel circuit 210 is any one of a 2T1C circuit, a 7T2C circuit, or a 9T1C circuit. Herein, the "2T1C circuit" refers to a pixel circuit including 2 thin film transistors (T) and 1 capacitor (C) among pixel circuits, and the other "7T1C circuit", "7T2C circuit", "9T1C circuit", and so on.

Alternatively, the circuit configuration of the transition pixel circuit 220 is any one of a 2T1C circuit, a 7T2C circuit, or a 9T1C circuit.

Optionally, the transition display area AA2 is in a ring shape and is disposed around the first display area AA1, and the transition display area AA2 includes a plurality of annular areas disposed at equal intervals in a direction away from a center of the first display area AA 1.

In these alternative embodiments, equidistant placement of the annular regions means that the width dimensions of the plurality of annular regions are the same, e.g. when the annular regions comprise two edges spaced apart, the minimum distance between the two edges of each annular region is the same. When the first pixel circuits 210 are distributed in the plurality of annular regions arranged at equal intervals, the distribution of the plurality of first pixel circuits 210 is more balanced, and the display effect of the display panel 10 is more uniform.

As shown in fig. 5, the first display area AA1 is circular, and the first display area AA1 includes 8 rows and 8 columns of the first sub-pixels 110. The 8 rows and 8 columns of first sub-pixels 110 are symmetrically distributed about both the first symmetry axis M and the second symmetry axis N. The first pixel circuits 210 for driving the first sub-pixels 110 are disposed on both sides of the second symmetry axis N and symmetrically disposed about the second symmetry axis N.

The transitional display area AA2 has four annular regions, and a plurality of first pixel circuits 210 symmetrically disposed about the second symmetry axis N are located in the same annular region. The first pixel circuit 210 for driving the first sub-pixel 110 of the 1 st column from the left in fig. 4 and the first pixel circuit 210 for driving the first sub-pixel 110 of the 8 th column from the left in fig. 4 are located in the same annular region farthest from the first display area AA 1. The first pixel circuit 210 for driving the first sub-pixel 110 of the 4 th column from the left in fig. 4 and the first pixel circuit 210 for driving the first sub-pixel 110 of the 5 th column from the left in fig. 4 are located in the same annular region nearest to the first display area AA 1.

Since the first display area AA1 is circular, the number of the first sub-pixels 110 is different between at least two adjacent rows. For example, in the first display area AA1, the number of the first sub-pixels 110 in the 1 st row in fig. 4 is smaller than the number of the first sub-pixels 110 in the 2 nd row. Then, the number of the first pixel circuits 210 corresponding to the first sub-pixel 110 in the 1 st row is smaller than the number of the first pixel circuits 210 in the 2 nd row, and the first pixel circuits 210 corresponding to the first sub-pixel 110 in the 1 st row and the first pixel circuits 210 in the 2 nd row are arranged in a staggered manner in the first direction.

In some alternative embodiments, as shown in fig. 2 and 3, the plurality of subpixels further includes a second subpixel 130 located in the second display area AA 3; the pixel circuit further includes a second pixel circuit 230 for driving the second sub-pixel 130 and located in the second display area AA 3; the signal lines further include a second signal line 330 located in the second display area AA3, the second signal line 330 being connected to a plurality of second pixel circuits 230 for driving the second sub-pixels 130 in the same column; the number of columns of the second sub-pixels 130 and the number of the second signal lines 330 form a first ratio, and the sum of the number of columns of the transition sub-pixels 120 and the number of the first signal lines 310 and the transition signal lines 320 forms a second ratio, which is equal to the first ratio.

In these alternative embodiments, the first ratio is equal to the second ratio. For example, when the first ratio is 1, a row of the second sub-pixels 130 corresponds to a second signal line 330, the second ratio is also 1, and a row of the transition sub-pixels 120 corresponds to a first signal line 310 or a transition signal line 320. The display difference between the transitional display area AA2 and the second display area AA3 can be further improved, and the display effect of the display panel 10 can be improved.

Optionally, when a portion of the second sub-pixels 130 and the transition sub-pixels 120 are located in the same column, the second signal lines 330 and the transition signal lines 320 corresponding to the second sub-pixels 130 and the transition sub-pixels 120 in the same column are connected end to end. Or the second signal lines 330 and the transition signal lines 320 corresponding to the second sub-pixels 130 and the transition sub-pixels 120 in the same column are sequentially distributed along the second direction.

In some alternative embodiments, to ensure control accuracy, the second sub-pixels 130 and the second pixel circuits 230 are disposed in a one-to-one correspondence, and then one column of the second sub-pixels 130 corresponds to one second signal line 330. The transition display area AA2 is provided with a first signal line 310 corresponding to the first sub-pixels 110 and a transition signal line 320 corresponding to the transition sub-pixels 120, so that one first signal line 310 or one transition signal line 320 corresponds to one column of transition sub-pixels 120, and more than two first sub-pixels 110 are connected to the same first pixel circuit 210 and/or more than two transition sub-pixels 120 are connected to the same transition pixel circuit 220.

Referring to fig. 6 and fig. 7 together, fig. 6 illustrates a partially enlarged schematic structure of fig. 2 in another example; fig. 7 differs from fig. 6 in that the pixel circuit and the sub-pixel are not illustrated in fig. 7.

In some alternative embodiments, the second sub-pixels 130 and the second pixel circuits 230 are disposed in one-to-one correspondence, each of the transition display area AA2 and the first display area AA1 has M columns of sub-pixels, two first sub-pixels 110 are connected to the same first pixel circuit 210, and two transition sub-pixels 120 are connected to the same transition pixel circuit 220. The M-column first sub-pixels 110 of the first display area AA1 are made to correspond to the M/2-column first pixel circuits 210, so that the M-column first sub-pixels 110 of the transition display area AA2 are made to correspond to the M/2-column transition pixel circuits 220. Further, M rows of pixel circuits are formed in the transition display area AA2, such that the sum of the first signal line 310 and the transition signal line 320 in the transition display area AA2 is M. The first ratio and the second ratio are equal.

As shown in fig. 5, the second sub-pixels 130 and the second pixel circuits 230 are disposed in one-to-one correspondence, and the transitional display area AA2 and the first display area AA1 each have 8 columns of sub-pixels. As shown in fig. 6, two first sub-pixels 110 adjacent in the first direction are connected to the same first pixel circuit 210, and two transition sub-pixels 120 adjacent in the first direction are connected to the same transition pixel circuit 220. Let the 4-column first sub-pixels 110 of the first display area AA1 correspond to 2-column first pixel circuits 210, so that the 4-column first sub-pixels 110 of the transition display area AA2 correspond to 2-column transition pixel circuits 220. So that the sum of the first signal line 310 and the transition signal line 320 of the transition display area AA2 is 8, and 8 rows of pixel circuits are formed in the transition display area AA 2. The first ratio and the second ratio are equal. Only one group of two first sub-pixels 110 adjacent in the first direction is schematically shown in fig. 6 as being interconnected with the first pixel circuit 210 by a connection wire 400.

Alternatively, when two or more transition sub-pixels 120 are connected to the same transition pixel circuit 220, two or more transition sub-pixels 120 of the same color are connected to the same transition pixel circuit 220, such that the same transition pixel circuit 220 is used to drive a plurality of transition sub-pixels 120 of the same color.

Optionally, the size of the first sub-pixel 110 is smaller than the size of the transition sub-pixel 120 with the same color, so that the occupied space of the first sub-pixel 110 in the first display area AA1 can be reduced, so that the area of the non-light-emitting area in the first display area AA1 is larger, and the light transmittance of the first display area AA1 is improved conveniently.

Optionally, the size of the first sub-pixel 110 is smaller than the size of the second sub-pixel 130 with the same color, so that the occupied space of the first sub-pixel 110 in the first display area AA1 can be reduced, so that the area of the non-light-emitting area in the first display area AA1 is larger, and the light transmittance of the first display area AA1 is improved.

Optionally, the size of the transition sub-pixel 120 is smaller than that of the second sub-pixel 130, so that the occupied space of the transition sub-pixel 120 in the transition display area AA2 can be reduced, so that the area of the non-light-emitting area in the transition display area AA2 is larger, and the light transmittance of the transition display area AA2 can be further improved.

In other embodiments, the second sub-pixel 13013 has the same size as the transition sub-pixel 120 of the same color, so that the display difference between the transition display area AA2 and the second display area AA3 is reduced, and the display uniformity is improved.

Alternatively, two or more adjacent first sub-pixels 110 of the same color are connected to the same first pixel circuit 210, so as to facilitate the wiring of the display panel 10.

Alternatively, as shown in fig. 3 and 5, when the first signal line 310 and the transition signal line 320 corresponding to the first sub-pixel 110 and the transition sub-pixel 120 positioned in the same column are connected to each other, the first signal line 310 may be connected to an end of the transition signal line 320, or the first signal line 310 may be connected between both ends of the transition signal line 320. As long as the first signal line 310 is connected to the transition signal line 320.

Alternatively, a part of the first signal line 310 is connected to the end of the transition signal line 320, and another part of the first signal line 310 is connected between the two ends of the transition signal line 320.

When the at least one first signal line 310 is connected between two ends of the transition signal line 320, the at least one transition signal line 320 includes a third portion 321 and a fourth portion 322, the third portion 321 and at least a portion of the first signal line 310 are overlapped along the second direction, the fourth portion 322 and the first signal line 310 are arranged in a staggered manner along the second direction, and the material of the third portion 321 includes a transparent material. The display difference between the transitional display area AA2 and the second display area AA3 can be further improved, and the display effect of the display panel 10 can be improved.

Optionally, the third portion 321 and the second portion 312 are disposed in the same layer and the same material, so that the manufacturing process of the display panel 10 can be simplified, and the manufacturing efficiency of the display panel 10 can be improved.

In other alternative embodiments, the fourth portion 322 and the first portion 311 are disposed in the same layer and the same material, which can simplify the manufacturing process of the display panel 10 and improve the manufacturing efficiency of the display panel 10.

In still other alternative embodiments, the second section 312, the connecting wire 400 and the third section 321 are provided in the same layer and in the same material in order to further simplify the manufacturing process of the display panel 10.

Referring to fig. 8, fig. 8 is a partial cross-sectional view of fig. 3. In fig. 8, the positional relationship of one of the first signal line 310, the transition signal line 320, the first pixel circuit 210, and the transition pixel circuit 220 is schematically shown, and the first signal line 310, the transition signal line 320, the first pixel circuit 210, and the transition pixel circuit 220 may be arranged in other positional relationships.

Optionally, the display panel 10 further includes: a substrate 101; the first conductive layer 102, the fourth subsection 322 and the first subsection 311 are positioned on the first conductive layer 102; the second conductive layer 103, the third portion 321 and the second portion 312 are located on the second conductive layer 103, and the first conductive layer 102 and the second conductive layer 103 are sequentially distributed on the same side of the substrate 101; the insulating layer 104 is located between the first conductive layer 102 and the second conductive layer 103, and a connection opening is formed on the insulating layer 104, so that the first signal line 310 and the transition signal line 320 are connected to each other through the connection opening.

In these alternative embodiments, the fourth part 322 and the first part 311 are located at different layer structures from the third part 321 and the second part 312, so that the fourth part 322 and the first part 311 may be formed using the same material, and the third part 321 and the second part 312 may be formed using the same material, which can simplify the manufacturing process of the display panel 10.

Optionally, the connection wire 400, the third portion 321, and the second portion 312 are located on the second conductive layer 103, which can further simplify the manufacturing process of the display panel 10.

The substrate 101 may be made of a light-transmitting material such as glass, polyimide (PI), or the like.

There are various ways of disposing the first conductive layer 102 and the second conductive layer 103 in a relative position, for example, the second conductive layer 103 is located on a side of the first conductive layer 102 facing away from the substrate 101, or the second conductive layer 103 is located on a side of the first conductive layer 102 facing toward the substrate 101.

Optionally, the display panel 10 further includes a pixel electrode layer, where the second conductive layer 103 is located on a side of the first conductive layer 102 facing away from the substrate 101, and the pixel electrode layer is located on a side of the second conductive layer 103 facing away from the first conductive layer 102. In these alternative embodiments, the second conductive layer 103 is closer to the pixel electrode layer, facilitating interconnection of the connection wire 400 with the pixel electrode.

In some alternative embodiments, the display panel 10 further includes: a pixel defining layer 105 located on a side of the first conductive layer 102 and the second conductive layer 103 facing away from the substrate 101, the pixel defining layer 105 including a first pixel opening located in the first display area AA 1; the first sub-pixel 110 comprises a first light emitting structure 111, a first electrode 112 and a second electrode 113, the first light emitting structure 111 is located in the first pixel opening, the first electrode 112 is located on a side of the first light emitting structure 111 facing the substrate 101, and the second electrode 113 is located on a side of the first light emitting structure 111 facing away from the substrate 101. One of the first electrode 112 and the second electrode 113 is an anode, and the other is a cathode.

Optionally, the pixel defining layer 105 further includes a second pixel opening in the transitional display area AA2 and a third pixel opening in the second display area AA 3.

In some embodiments, the transition sub-pixel 120 includes a second light emitting structure 121, a third electrode 122, and a fourth electrode 123. The second light emitting structure 121 is located in the second pixel opening, the third electrode 122 is located at a side of the second light emitting structure 121 facing the substrate 101, and the fourth electrode 123 is located at a side of the second light emitting structure 121 facing away from the substrate 101. One of the third electrode 122 and the fourth electrode 123 is an anode, and the other is a cathode.

In some embodiments, the second subpixel 130 includes a third light emitting structure, a fifth electrode, and a sixth electrode. The third light emitting structure is located in the third pixel opening, the fifth electrode is located at a side of the third light emitting structure facing the substrate 101, and the sixth electrode is located at a side of the third light emitting structure facing away from the substrate 101. One of the fifth electrode and the sixth electrode is an anode, and the other is a cathode.

In this embodiment, the first electrode 112, the third electrode 122, and the fifth electrode are anodes, and the second electrode 113, the fourth electrode 123, and the sixth electrode are cathodes. The first electrode 112, the third electrode 122, and the fifth electrode are located at the pixel electrode layer, for example.

The first, second, and third light emitting structures 111, 121, and 121 may include OLED light emitting layers, respectively, and may further include at least one of a hole injection layer, a hole transport layer, an electron injection layer, or an electron transport layer, respectively, according to design requirements of the first, second, and third light emitting structures 111, 121, and 121, respectively.

In some embodiments, the first electrode 112 is a light transmissive electrode. In some embodiments, the first electrode 112 includes an Indium Tin Oxide (ITO) layer or an Indium zinc Oxide layer. In some embodiments, the first electrode 112 is a reflective electrode, including a first light transmissive conductive layer, a reflective layer on the first light transmissive conductive layer, and a second light transmissive conductive layer on the reflective layer. The first transparent conductive layer and the second transparent conductive layer can be ITO, indium zinc oxide and the like, and the reflecting layer can be a metal layer, for example, made of silver. The third electrode 122 and the fifth electrode may be formed of the same material as the first electrode 112.

In some embodiments, the second electrode 113 includes a magnesium silver alloy layer. The fourth electrode 123 and the sixth electrode may be formed of the same material as the second electrode 113. In some embodiments, the second electrode 113, the fourth electrode 123, and the sixth electrode may be interconnected as a common electrode.

In some embodiments, the orthographic projection of each first light emitting structure 111 onto the substrate 101 is comprised of one first graphic unit or is comprised of a concatenation of more than two first graphic units, the first graphic units comprising at least one selected from the group consisting of circular, oval, dumbbell-shaped, gourd-shaped, rectangular.

In some embodiments, the orthographic projection of each first electrode 112 onto the substrate 101 is comprised of one second graphic unit or is comprised of a concatenation of more than two second graphic units, the second graphic units comprising at least one selected from the group consisting of circular, oval, dumbbell, gourd, rectangular.

In some embodiments, the orthographic projection of each second light emitting structure 121 on the substrate 101 is composed of one third graphic unit or is composed of a concatenation of more than two third graphic units, the third graphic unit including at least one selected from the group consisting of a circle, an ellipse, a dumbbell, a gourd, a rectangle.

In some embodiments, the orthographic projection of each third electrode 122 on the substrate 101 is comprised of one fourth graphic unit or is comprised of a concatenation of more than two fourth graphic units, the fourth graphic unit comprising at least one selected from the group consisting of a circle, an ellipse, a dumbbell, a gourd, a rectangle.

The display panel 10 may further include an encapsulation layer, a polarizer and a cover plate disposed above the encapsulation layer, or the cover plate may be directly disposed above the encapsulation layer without the polarizer, or at least the cover plate may be directly disposed above the encapsulation layer of the first display area AA1 without the polarizer, so that the polarizer does not affect the light collection amount of the photosensitive element disposed below the corresponding first display area AA1, and of course, the polarizer may also be disposed above the encapsulation layer of the first display area AA 1.

The embodiment of the second aspect of the present invention also provides a display device, which may include the display panel 10 of any of the above embodiments. A display device of an embodiment in which the display device includes the display panel 10 of the above-described embodiment will be described below as an example. In the display device of the present embodiment, the display panel 10 may be the display panel 10 of one of the above embodiments, where the display panel 10 has a first display area AA1 and a transition display area AA2, and the light transmittance of the first display area AA1 is greater than the light transmittance of the transition display area AA 2.

In some alternative embodiments, the display device further includes a photosensitive element disposed on one side of the display panel 10, and a front projection of the photosensitive element on the display panel 10 is located in the first display area AA1, so that the photosensitive element can transmit light to the first display area AA1 to obtain light information.

The photosensitive assembly may be an image capturing device for capturing external image information. For example, the photosensitive element is a complementary metal oxide semiconductor (Complementary Metal Oxide Semiconductor, CMOS) image capturing Device, and in other embodiments, the photosensitive element may be another type of image capturing Device such as a Charge-coupled Device (CCD) image capturing Device. It is understood that the photosensitive component may not be limited to an image capturing device, for example, in some embodiments, the photosensitive component may also be an infrared sensor, a proximity sensor, an infrared lens, a floodlight sensing element, an ambient light sensor, a lattice projector, and the like.

According to the display device of the embodiment of the invention, the light transmittance of the first display area AA1 is larger than that of the transition display area AA2, so that the display panel 10 can integrate the photosensitive assembly on the back of the first display area AA1, for example, the under-screen integration of the photosensitive assembly of the image acquisition device is realized, and meanwhile, the first display area AA1 can display images, the display area of the display panel 10 is increased, and the overall screen design of the display device is realized.

In other alternative embodiments, the photosensitive component may also be a fingerprint recognition sensor. Because the transmittance of the first display area AA1 is higher, the photosensitive assembly can obtain more accurate fingerprint information through the first display area AA 1.

These embodiments are not exhaustive or to limit the invention to the precise embodiments disclosed, and according to the invention described above. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention and various modifications as are suited to the particular use contemplated. The invention is limited only by the claims and the full scope and equivalents thereof.

Claims

1. A display panel having a first display region, a transition display region, and a second display region, the transition display region being located between the first display region and the second display region, the first display region having a light transmittance that is greater than a light transmittance of the transition display region, the display panel comprising:

A plurality of sub-pixels arranged in rows and columns along a first direction and a second direction and including a first sub-pixel located in the first display area;

a pixel circuit including a first pixel circuit for driving the first sub-pixel and located in the transition display area;

a signal line including a first signal line in the transition display region, the first signal line being connected to a plurality of the first pixel circuits for driving the first sub-pixels in the same column;

wherein a plurality of the first pixel circuits for driving the first sub-pixels of the same column are located in at least two columns adjacent in the first direction and at least two rows adjacent in the second direction, the first signal line includes a first division for connecting the first pixel circuits located in different rows and a second division for connecting the first pixel circuits located in different columns, and a material of the second division includes a transparent material.

2. The display panel of claim 1, further comprising:

the first pixel circuit and the first sub-pixel connected with the first pixel circuit are arranged in the same row, the connecting wire extends along the first direction and is used for connecting the first sub-pixel and the first pixel circuit, and the material of the connecting wire comprises a transparent material.

3. The display panel of claim 2, wherein the connecting wires and the second sections are co-layered and co-material.

4. The display panel of claim 1, wherein the display panel comprises,

the plurality of subpixels further comprise transition subpixels positioned in the transition display area;

the pixel circuit further comprises a transition pixel circuit used for driving the transition sub-pixel and positioned in the transition display area;

the signal line further comprises a transition signal line positioned in the transition display area, the transition signal line is connected with a plurality of transition pixel circuits used for driving the same-column transition sub-pixels, and the first signal line and the transition signal line which are positioned in the same-column and correspond to the first sub-pixels and the transition sub-pixels are connected with each other.

5. The display panel according to claim 4, wherein, in the first signal line and the transition signal line corresponding to the first subpixel and the transition subpixel in the same column, the transition signal line is located on at least one side of the first subpixel in the second direction.

6. The display panel of claim 4, wherein the first subpixel has a size smaller than the transition subpixel of the same color.

7. The display panel of claim 4, wherein the display panel comprises,

the plurality of subpixels further comprise a second subpixel located in the second display area;

the pixel circuit further comprises a second pixel circuit for driving the second sub-pixel and located in the second display area;

the signal lines further include a second signal line in the second display region, the second signal line being connected to a plurality of the second pixel circuits for driving the second sub-pixels in the same column;

the number of columns of the second sub-pixels and the number of the second signal lines form a first ratio, the sum of the number of columns of the transition sub-pixels and the number of the first signal lines and the number of the transition signal lines form a second ratio, and the first ratio is equal to the second ratio.

8. The display panel of claim 7, wherein the first subpixel has a size smaller than the second subpixel of the same color.

9. The display panel of claim 7, wherein the transition sub-pixel has a size that is smaller than a size of the second sub-pixel of the same color.

10. The display panel of claim 7, wherein the display panel comprises,

The second sub-pixels and the second pixel circuits are arranged in one-to-one correspondence;

more than two of the first sub-pixels are connected to the same first pixel circuit and/or more than two of the transition sub-pixels are connected to the same transition pixel circuit.

11. The display panel of claim 10, wherein adjacent two or more of the first subpixels of the same color are connected to the same first pixel circuit.

12. The display panel of claim 10, wherein adjacent two or more of the same color transition sub-pixels are connected to the same transition pixel circuit.

13. The display panel of claim 4, wherein the display panel comprises,

the first signal line is connected to one end of the transition signal line;

or, the first signal line is connected between two ends of the transition signal line, at least one transition signal line comprises a third part and a fourth part, the third part and at least part of the first signal line are overlapped along the second direction, the fourth part and the first signal line are arranged in a staggered manner along the second direction, and the material of the third part comprises a transparent material.

14. The display panel of claim 13, wherein the third section and the second section are co-layered and co-material.

15. The display panel of claim 13, wherein the fourth subsection and the first subsection are layered and of the same material.

16. The display panel of claim 13, wherein the display panel further comprises:

a substrate;

a first conductive layer, the fourth subsection and the first subsection being located on the first conductive layer;

the third subsection and the second subsection are positioned on the second conductive layer, and the first conductive layer and the second conductive layer are sequentially distributed on the same side of the substrate;

the insulating layer is positioned between the first conductive layer and the second conductive layer, and a connecting opening is formed in the insulating layer, so that the first signal line and the transition signal line are connected with each other through the connecting opening.

17. The display panel of claim 16, wherein the second conductive layer is located on a side of the first conductive layer facing away from the substrate or on a side of the first conductive layer facing toward the substrate.

18. The display panel of claim 16, further comprising:

a pixel defining layer located on a side of the first conductive layer and the second conductive layer facing away from the substrate, the pixel defining layer including a first pixel opening located in the first display region;

the first sub-pixel comprises a first light-emitting structure, a first electrode and a second electrode, wherein the first light-emitting structure is positioned in the first pixel opening, the first electrode is positioned on one side of the first light-emitting structure facing the substrate, and the second electrode is positioned on one side of the first light-emitting structure facing away from the substrate.

19. The display panel of claim 18, wherein the orthographic projection of each first light emitting structure on the substrate is comprised of one first graphic element or is comprised of a concatenation of two or more first graphic elements, the first graphic elements comprising at least one selected from the group consisting of a circle, an oval, a dumbbell, a gourd, and a rectangle.

20. The display panel of claim 18, wherein the orthographic projection of each first electrode on the substrate is comprised of one second graphic unit or is comprised of a concatenation of two or more second graphic units, the second graphic units comprising at least one selected from the group consisting of a circle, an ellipse, a dumbbell, a gourd, a rectangle.

21. The display panel of claim 18, wherein the first electrode is a light transmissive electrode.

22. The display panel of claim 18, wherein the first electrode is a reflective electrode.

23. The display panel of claim 18, wherein the first electrode comprises an indium tin oxide layer or an indium zinc oxide layer.

24. The display panel of claim 18, wherein the second electrode comprises a magnesium silver alloy layer.

25. The display panel of claim 4, wherein the display panel comprises,

the transition display area is provided with a plurality of annular areas which encircle the periphery of the first display area and are concentrically distributed with the first display area, and the first pixel circuits used for driving the first sub-pixels in the same column are sequentially distributed in the same annular area;

the first display area is symmetrically arranged about a second symmetry axis, the second symmetry axis extends along the second direction, the second symmetry axis passes through the center of the first display area, the first pixel circuits corresponding to two rows of first sub-pixels symmetrically distributed about the second symmetry axis are located in the same annular area, and the first pixel circuits are located at one side, away from the second symmetry axis, of the first sub-pixels connected with the first pixel circuits;

26. The display panel of claim 25, wherein a plurality of the first pixel circuits are symmetrically disposed about the second axis of symmetry and a plurality of the transition signal lines are symmetrically disposed about the second axis of symmetry.

27. The display panel of claim 25, wherein a plurality of the first pixel circuits are symmetrically disposed about a first symmetry axis extending along the first direction, the first symmetry axis passing through a center of the first display region, the transition signal line being symmetrically disposed about the first symmetry axis.

28. The display panel of claim 25, wherein the first display area is circular, elliptical, or regular polygon.

29. A display device comprising the display panel according to any one of claims 1 to 28.