CN113178473A

CN113178473A - Display panel and display device

Info

Publication number: CN113178473A
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: 2021-07-27
Anticipated expiration: 2041-04-27
Also published as: CN113178473B

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 greater than that of the transition display area, and the display panel comprises: a plurality of sub-pixels including a first sub-pixel located in the first display region; a pixel circuit including a first pixel circuit for driving the first sub-pixel; signal lines including a first signal line in the transition display region; wherein the first signal line includes a first section and a second section connected in succession, the first section is for connecting the first pixel circuits located in different rows, the second section is for connecting the first pixel circuits located in different columns, and a material of the second section includes a transparent material. The invention can improve the display difference between the second display area and the transition display area caused by the 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 occupation ratio are higher and higher, so that the comprehensive screen display of the electronic devices is concerned more and more in the industry.

Conventional electronic devices such as mobile phones, tablet computers and the like need to integrate components such as a front camera, an earphone, an infrared sensing element and the like. In the prior art, a groove (Notch) or an opening may be formed in the display screen, and external light may enter the photosensitive element located below the screen through the groove or the opening. However, these electronic devices are not all full-screen in the true sense, and cannot display in each area of the whole screen, for example, the corresponding area of the front camera cannot display the picture.

Disclosure of Invention

The embodiment of the invention provides a display panel and a display device, which can realize that at least part of the area of the display panel is light-permeable and can display, 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, the 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 including: a plurality of sub-pixels arranged in rows and columns along a first direction and a second direction and including first sub-pixels located in a first display region; the pixel circuit comprises a first pixel circuit which is used for driving the first sub-pixel and is positioned 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 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 located in different rows, the second subsection is used for connecting the first pixel circuits located in different columns, and the material of the second subsection comprises a transparent material.

According to an embodiment of the first aspect of the present invention, 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.

According to any of the preceding embodiments of the first aspect of the invention, the connecting leads and the second section are provided in the same layer and material.

According to any of the preceding embodiments of the first aspect of the present invention, the plurality of sub-pixels further comprises a transition sub-pixel located in the transition display region;

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 lines further comprise transition signal lines positioned in the transition display area, the transition signal lines are connected to a plurality of transition pixel circuits used for driving transition sub-pixels in the same column, and the first signal lines and the transition signal lines corresponding to the first sub-pixels and the transition sub-pixels in the same column are connected with each other.

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

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

According to any one of the preceding 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 region;

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

the signal lines further comprise second signal lines positioned in the second display area, and the second signal lines are connected with a plurality of second pixel circuits used 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, the number of columns of the transition sub-pixels and the sum of 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.

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

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

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

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

According to any one of the foregoing 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 one 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 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 arranged in an overlapped mode along the second direction, the fourth part and the first signal line are arranged in a staggered mode along the second direction, and the third part is made of transparent materials.

According to any of the preceding embodiments of the first aspect of the invention, the third section and the second section are provided in the same layer and material.

According to any one of the preceding embodiments of the first aspect of the present invention, the fourth section and the first section are provided in the same layer and material.

According to any one of the preceding embodiments of the first aspect of the invention, the display panel further comprises:

a substrate;

the first conductive layer, the fourth subsection and the first subsection are positioned 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;

and the insulating layer is positioned between the first conducting layer and the second conducting layer, and is provided with a connecting opening 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 preceding 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 towards the substrate.

According to any one of the preceding embodiments of the first aspect of the invention, further comprising:

the pixel definition layer is positioned on one side, away from the substrate, of the first conductive layer and the second conductive layer 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, 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, which faces the substrate, and the second electrode is positioned on one side of the first light-emitting structure, which faces away from the substrate.

According to any of the preceding 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 pattern element or is composed of two or more first pattern elements which are tiled together, and the first pattern elements comprise at least one selected from the group consisting of circular, oval, dumbbell, gourd-shaped, and rectangular.

According to any of the preceding embodiments of the first aspect of the present invention, the orthographic projection of each first electrode on the substrate is composed of one second pattern element or is composed of two or more second pattern elements which are tiled together, and the second pattern elements comprise at least one selected from the group consisting of circular, oval, dumbbell, gourd-shaped, and rectangular.

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

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

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

According to any one of the preceding embodiments of the first aspect of the present invention, the second electrode comprises a layer of magnesium silver alloy.

According to one embodiment of the first aspect of the present invention, the transitional display area has a plurality of annular areas surrounding the periphery of the first display area and distributed concentrically with the first display area, and the first pixel circuits for driving the first sub-pixels in the same column are distributed in the same annular area in sequence;

the first display areas are symmetrically arranged relative to 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 areas, the first pixel circuits corresponding to two rows of first sub-pixels which are symmetrically distributed relative to the second symmetry axis are positioned in the same annular area, and the first pixel circuits are positioned on one side of the first sub-pixels which are connected with the first pixel circuits and deviate from the second symmetry axis;

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

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

According to any one of the preceding embodiments of the first aspect of the present invention, the plurality of first pixel circuits are symmetrically disposed about a first axis of symmetry extending along the first direction, the first axis of symmetry passing through a center of the first display area, and the transition signal lines are symmetrically disposed about the first axis of symmetry.

According to any of the preceding embodiments of the first aspect of the present invention, the first display area is circular, elliptical or regular polygonal.

Embodiments of a second aspect of the present invention provide a display device, which includes the display panel of any one of the embodiments of the first aspect.

In the display panel provided in the embodiment of the first aspect of the present invention, the light transmittance of the first display area is greater than the light transmittance of the transition display area, so that the display panel can integrate the photosensitive component on the back of the first display area, thereby implementing the under-screen integration of the photosensitive component, such as a camera, and meanwhile, the first display area can display a picture, thereby increasing the display area of the display panel and implementing the overall screen design of the display device.

In the display panel provided by the embodiment of the first aspect of the present invention, the first pixel circuit for driving the first sub-pixel is located in the transitional display area, and the first signal line connected to the first pixel circuit is located in the transitional 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 successively, the first section for connecting the first pixel circuits located in different rows in the second direction, the first section extending in the second direction. The second section is for connecting the first pixel circuits located in different columns in the first direction, and then the second section extends in the first direction. The material of the second subsection comprises a transparent material, so that the display difference between the second display area and the transition display area caused by the bending of the first signal line can be improved, and the display effect of the display panel is improved.

Drawings

Other features, objects and advantages of the invention will become apparent from the following detailed description of non-limiting embodiments thereof, when read in conjunction with the accompanying drawings, in which like reference characters designate the same or similar parts throughout the figures thereof, and which 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 an enlarged partial view of the area Q of FIG. 1 in one example;

FIG. 3 illustrates an enlarged, partial schematic view of FIG. 2 in one example;

FIG. 4 is a partially enlarged schematic view of FIG. 2 in another example;

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

FIG. 6 is a partially enlarged schematic view of FIG. 2 in yet another example;

FIG. 7 is a partially enlarged schematic view of FIG. 2 in a further example;

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

Description of reference numerals:

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

110. a first sub-pixel; 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 sub-pixel;

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

310. a first signal line; 311. a first section; 312. a second subsection; (ii) a 320. A transition signal line; 321. a third subsection; 322. a fourth subsection; 330. a second signal line;

400. connecting a lead;

AA1, first display area; AA2, transition display area; AA3, second display area;

m, a first axis of symmetry; 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 objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting 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 present invention by illustrating examples of the present invention.

It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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 identical elements in a process, method, article, or apparatus that comprises the element.

It will be understood that when a layer, region or layer is referred to as being "on" or "over" another layer, region or layer in describing the structure of the component, it can be directly on the other layer, region or layer or intervening layers or regions may also be present. Also, if the component is turned over, one layer or region may be "under" or "beneath" another layer or region.

On electronic devices such as mobile phones and tablet computers, it is necessary to integrate a photosensitive component such as a front camera, an infrared light sensor, a proximity light sensor, and the like 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 that full-screen display of the electronic device is achieved under the condition that the photosensitive component is ensured to work normally.

In order to improve the light transmittance of the light-transmitting display region, the driving circuits of the light-transmitting region are often disposed in the non-light-transmitting region, which may cause that the driving circuits of the sub-pixels in the same column in the display panel 10 may not be located 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 problems, embodiments of the display panel 10 and the display device according to the present invention are provided, and the following description will be made with reference to the accompanying drawings.

An embodiment of the invention provides a display panel 10, and the display panel 10 may be an 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, and the light transmittance of the first display area AA1 is greater than that of the transition display area AA 2. Optionally, the light transmittance of the first display area AA1 is greater than that 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%. In order to ensure that the light transmittance of the first display area AA1 is greater than 15%, even greater than 40%, or 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 some of the functional film layers are 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 that of the transition display area AA2, so that the display panel 10 can integrate the photosensitive components on the back of the first display area AA1, and the photosensitive components such as a camera are integrated under a screen, and meanwhile, the first display area AA1 can display a picture, so that the display area of the display panel 10 is increased, and the full-screen design of the display device is realized.

The number of the first display area AA1 and the transition display area AA2 is set in various ways, for example, the number of the first display area AA1 and the transition display area AA2 is 1, and the first display area AA1 and the transition display area AA2 are used for realizing the under-screen integration of photosensitive components or fingerprint identification. Or, in other alternative embodiments, the number of the first display area AA1 and the transition display area AA2 is two, wherein one group of the first display area AA1 and the transition display area AA2 is used for implementing the under-screen integration of the photosensitive assembly, and the other group of the first display area AA1 and the transition display area AA2 is used for implementing the fingerprint identification.

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

As shown in fig. 2 and 3, a display panel 10 according to an embodiment of the present invention includes: a plurality of subpixels 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 subpixels 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 transition display area AA 2; signal lines including a first signal line 310 in the transitional display area AA2, the first signal line 310 being connected to a plurality of first pixel circuits 210 for driving the first subpixels 110 in the same column; wherein 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 to each other in the first direction and at least two rows adjacent to each other in the second direction, the first signal line 310 includes a first branch portion 311 and a second branch portion 312 connected successively, the first branch portion 311 is used for connecting the first pixel circuits 210 located in different rows, the second branch portion 312 is used for connecting the first pixel circuits 210 located in different columns, and a material of the second branch portion 312 includes a transparent material.

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

In the display panel 10 according to 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 transition display area AA2, and the first signal line 310 connected to the first pixel circuit 210 is located in the transition 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 section 311 and a second section 312 which are connected successively, the first section 311 being for connecting the first pixel circuits 210 located in different rows in the second direction, then the first section 311 extends in the second direction. The second sections 312 are used to connect the first pixel circuits 210 located at different columns in the first direction, and then the second sections 312 extend in the first direction. The material of the second portion 312 includes a transparent material, which can improve the display difference between the second display area AA3 and the transition display area AA2 caused by the bending of the first signal line 310, and improve the display effect of the display panel 10.

The signal line is, for example, a data line, and the embodiment of the invention is exemplified by taking the signal line as the data line. 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 to each other in the first direction and at least two rows adjacent to each other in the second direction: there may be one or more than two first pixel circuits 210 in the same row, and there may also be one or more than two first pixel circuits 210 in the same column.

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

The data lines corresponding to the sub-pixels of the transition display area AA2 and the second display area AA3 are formed to extend along the second direction, the first signal line 310 corresponding to the sub-pixel of the first display area AA1 is formed to extend along the bending path, the first subsection 311 of the first signal line 310 is disposed parallel to the data line corresponding to the sub-pixel of the transition display area AA2 and the second display area AA3, and the second subsection 312 is disposed to intersect the data line corresponding to the sub-pixel of the transition display area AA2 and the sub-pixel of the second display area AA3, if the first subsection 311 and the second subsection 312 are made of the same material (e.g., metal) as the data line corresponding to the sub-pixel of the transition display area AA2 and the sub-pixel of the second display area AA3, the display effect of the transition 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, which can improve the display difference between the second display area AA3 and the transition display area AA2 caused by the bending of the first signal line 310, and improve the display effect of the display panel 10.

Further, 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, and at least two adjacent first pixel circuits 210 are distributed along a second direction, that is, at least two adjacent first pixel circuits 210 corresponding to the first sub-pixels 110 in the same column are arranged in a staggered manner, and then the first signal line 310 extends along a step-shaped bent path and includes a first branch 311 and a second branch 312. This arrangement enables the first signal lines 310 to be connected to the plurality of first pixel circuits 210 corresponding to the first sub-pixels 110 in the same column, and also enables adjacent two first signal lines 310 to be insulated from each other without crossing each other.

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

In some alternative embodiments, the plurality of sub-pixels further includes a transition sub-pixel 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 transition sub-pixels 120 in the same column, and the first signal lines 310 and the transition signal lines 320 corresponding to the first sub-pixels 110 and the transition sub-pixels 120 in the same column are connected to each other.

The extending path of the transition signal line 320 may be arranged in various ways, and optionally, the transition signal line 320 is formed by extending along a straight path, which facilitates the preparation of the transition signal line 320. Then, as shown in fig. 3, a signal line passing through the transition display area AA2 and having a straight line shape is a transition signal line 320, and a signal line passing through the transition display area AA2 and having a first division 311 and a second division 312 is a first signal line 310.

In the transition pixel circuits 220 for driving the transition sub-pixels 120 in the same column, the transition pixel circuits 220 may be used for driving the transition sub-pixels 120 in one column, or driving the transition sub-pixels 120 in 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 in the same column are connected to each other, and the first sub-pixels 110 and the transition sub-pixels 120 in the same column can be driven by the driving signals in the same column.

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

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

Optionally, the transitional display area AA2 has a plurality of annular areas surrounding 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 are used for driving the first pixel circuits 210 of the first sub-pixels 110 in the same column to be 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 first sub-pixels 110 in the same column are sequentially distributed in the same annular region, so that the first signal lines 310 corresponding to the first sub-pixels 110 in the same column 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 in different columns are located in different annular regions, different first signal lines 310 extend in 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, the first pixel circuit 210 and the first sub-pixel 110 connected thereto are arranged in the same row, the connection wire 400 extends along the first direction and is used for connecting the first sub-pixel 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 is illustrated in fig. 3 and 4 as being connected to the first pixel, and in the embodiment illustrated in fig. 3 and 4, the first pixel circuits 210 and the first sub-pixels 110 may be disposed in one-to-one correspondence.

In these alternative embodiments, in order to connect the first pixel circuit 210 and the first subpixel 110 to each other, a connection wire 400 is provided. A portion of the connection wire 400 is located at the first display area AA1, and another portion of the connection wire 400 is located at the transition display area AA 2. The connection lead 400 of the transition display area AA2 is an extra lead with respect to the second display area AA3, the transition display area AA2 has a part of the connection lead 400, but the second display area AA3 has no connection lead 400, which may cause a display difference between the transition display area AA2 and the second display area AA 3. The material of the connection wire 400 includes a transparent material, which can increase the light transmittance of the first display area AA1 on the one hand, and can improve the display difference between the transition display area AA2 and the second display area AA3 on the other hand.

Optionally, the connection wires 400 and the second sub-portions 312 are disposed in the same layer, which can simplify the manufacturing process of the display panel 10 and improve the manufacturing efficiency of the display panel 10.

There are various arrangements of the first signal line 310 and the transition signal line 320, and in some alternative embodiments, please refer to fig. 5, and 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 in fig. 4 in order to better show the structure of the first pixel circuit 210.

Fig. 3 and 5 illustrate one of the positions 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 regions.

In other alternative embodiments, as shown in fig. 3 and 5, the first display areas AA1 are symmetrically disposed about a second symmetry axis N, the second symmetry axis extends along the second direction, and 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 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, which side faces away from the second symmetry axis.

In these alternative embodiments, the first pixel circuits 210 corresponding to 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 circuit 210 is located on a side of the first sub-pixel 110 connected thereto, which side faces away from the second symmetry axis. Therefore, the first pixel circuits 210 corresponding to the two columns of the first sub-pixels 110 symmetrically distributed about the second symmetry axis are disposed on two 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 the embodiment of the present invention, the arrangement of the first pixel circuits 210 is more regular and convenient, the distribution of the first pixel circuits 210 is more uniform, and the problem of uneven color rendering of the display panel 10 can be solved.

Alternatively, two transition signal lines 320 for connecting the first pixel circuits 210 in the same annular region are symmetrically distributed about the second axis of symmetry. Since the first pixel circuits 210 corresponding to the two rows of the 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 rows of the 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 axis of symmetry, facilitating wiring arrangement and facilitating interconnection of the first pixel circuits 210 and the first signal lines 310.

Alternatively, the plurality of first pixel circuits 210 are symmetrically disposed about the second symmetry axis N. The arrangement of the first pixel circuits 210 is more uniform, and the color variation 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 in the first direction, the first symmetry axis M passing through the center of the first display area AA 1.

The shape of the first display area AA1 may be set in various ways, and the first display area AA1 may be, for example, a regular polygon or a circle. The embodiment of the present invention is illustrated by the first display area AA1 being circular. In other embodiments, first display area AA1 may also be in the shape of an ellipse or a regular polygon, which may be, for example, a square, an equilateral triangle, etc.

When the first display area AA1 is circular, the annular region extends along the edge of the first display area AA1 and is circular, the plurality of first pixel circuits 210 are arranged in rows and columns, and the number of the first pixel circuits 210 in one row is greater than that of the first pixel circuits 210 in another row in at least two adjacent rows of the first pixel circuits 210.

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

Optionally, in 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 arranged in a staggered manner.

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

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

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

In these alternative embodiments, the annular regions are equally spaced, which means that the width of the plurality of annular regions is the same, for example, when the annular regions include 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 axis of symmetry M and the second axis of symmetry N. The first pixel circuits 210 for driving the first sub-pixels 110 are respectively disposed at both sides of the second symmetry axis N and are symmetrically disposed about the second symmetry axis N.

The transition display area AA2 has four annular areas, and the plurality of first pixel circuits 210 symmetrically disposed about the second axis of symmetry N are located in the same annular area. 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 area which is 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 area and are closest to the first display area AA 1.

Since the first display area AA1 has a circular shape, at least two adjacent rows have different numbers of first sub-pixels 110. For example, in the first display area AA1, the number of the first sub-pixels 110 in the 1 st row from the top 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 sub-pixels further includes a second sub-pixel 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, and the second signal line 330 is 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, the number of columns of the transition sub-pixels 120 and the sum of the number of the first signal lines 310 and the number of the transition signal lines 320 form a second ratio, and the first ratio is equal to the second ratio.

In these alternative embodiments, the first ratio is equal to the second ratio. For example, when the first ratio is 1 and one second signal line 330 corresponds to one column of the second sub-pixels 130, the second ratio is also 1, and one first signal line 310 or one transition signal line 320 corresponds to one column of the transition sub-pixels 120. The display difference between the transition 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 part 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, in order to ensure the control accuracy, the second sub-pixels 130 and the second pixel circuits 230 are arranged in a one-to-one correspondence, and then one second signal line 330 corresponds to one column of the second sub-pixels 130. The transition display area AA2 is provided with a first signal line 310 corresponding to the first sub-pixel 110 and a transition signal line 320 corresponding to the transition sub-pixel 120, so that one first signal line 310 or one transition signal line 320 corresponds to one transition sub-pixel 120 in a column, 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 7 together, fig. 6 is a schematic view illustrating a partial enlarged structure of fig. 2 according to another example; fig. 7 is different 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 arranged in a one-to-one correspondence, the transition display area AA2 and the first display area AA1 each have 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. Let M columns of first sub-pixels 110 of the first display area AA1 correspond to M/2 columns of first pixel circuits 210, so that M columns of first sub-pixels 110 of the transition display area AA2 correspond to M/2 columns of transition pixel circuits 220. Further, M columns 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 of 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 transition 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 to each other in the first direction are connected to the same first pixel circuit 210, and two transition sub-pixels 120 adjacent to each other in the first direction are connected to the same transition pixel circuit 220. Let 4 columns of first sub-pixels 110 of the first display area AA1 correspond to 2 columns of first pixel circuits 210, so that 4 columns of first sub-pixels 110 of the transitional display area AA2 correspond to 2 columns of transitional pixel circuits 220. The sum of the first signal line 310 and the transition signal line 320 of the transition display area AA2 is set to 8, and 8 columns of pixel circuits are formed in the transition display area AA 2. The first ratio and the second ratio are equal. Only one set of two first sub-pixels 110 adjacent in the first direction is illustrated in fig. 6 as being connected to the first pixel circuit 210 by a connection wire 400.

Optionally, when more than two transition sub-pixels 120 are connected to the same transition pixel circuit 220, more than two transition sub-pixels 120 of the same color are connected to the same transition pixel circuit 220, so that the same transition pixel circuit 220 is used for driving a plurality of transition sub-pixels 120 of the same color.

Optionally, the size of the first sub-pixel 110 is smaller than that of the transition sub-pixel 120 of the same color, so that the occupied space of the first sub-pixel 110 in the first display area AA1 can be reduced, 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 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, 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, 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 is further improved.

In other embodiments, the size of the second sub-pixel 13013 is the same as the size of 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.

Optionally, two or more adjacent first sub-pixels 110 of the same color are connected to the same first pixel circuit 210, which facilitates 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 subpixel 110 and the transition subpixel 120 located 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.

Optionally, a portion of the first signal line 310 is connected to an end of the transition signal line 320, and another portion of the first signal line 310 is connected between 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 subsection 321 and a fourth subsection 322, the third subsection 321 and at least a portion of the first signal line 310 are overlapped in the second direction, the fourth subsection 322 and the first signal line 310 are arranged in a staggered manner in the second direction, and a material of the third subsection 321 includes a transparent material. The display difference between the transition display area AA2 and the second display area AA3 can be further improved, and the display effect of the display panel 10 is improved.

Optionally, the third partition 321 and the second partition 312 are disposed in the same layer and material, which can simplify the manufacturing process of the display panel 10 and improve the manufacturing efficiency of the display panel 10.

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

In some alternative embodiments, in order to further simplify the manufacturing process of the display panel 10, the second portion 312, the connecting wires 400 and the third portion 321 are disposed in the same layer and material.

Referring also to fig. 8, fig. 8 is a partial cross-sectional view of fig. 3. One of the positional relationships of the first signal line 310, the transition signal line 320, the first pixel circuit 210, and the transition pixel circuit 220 is illustrated in fig. 8, 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 located at the first conductive layer 102; the second conductive layer 103, the third subsection 321 and the second subsection 312 are positioned on the second conductive layer 103, and the first conductive layer 102 and the second conductive layer 103 are distributed on the same side of the substrate 101 in sequence; and the insulating layer 104 is positioned 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 with each other through the connection opening.

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

Optionally, the connecting wires 400, the third sub-portions 321, and the second sub-portions 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 or Polyimide (PI).

The relative positions of the first conductive layer 102 and the second conductive layer 103 are various, for example, the second conductive layer 103 is located on the side of the first conductive layer 102 facing away from the substrate 101, or the second conductive layer 103 is located on the side of the first conductive layer 102 facing toward the substrate 101.

Optionally, the display panel 10 further includes a pixel electrode layer, 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, which facilitates the interconnection of the connection wire 400 with the pixel electrode.

In some optional 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 includes 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 located in the transition display area AA2 and a third pixel opening located in the second display area AA 3.

In some embodiments, the transition subpixel 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 on a side of the second light emitting structure 121 facing the substrate 101, and the fourth electrode 123 is located on 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 on a side of the third light emitting structure facing the substrate 101, and the sixth electrode is located on 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, the fifth electrode as an anode, the second electrode 113, the fourth electrode 123, and the sixth electrode as a cathode will be described as an example. The first electrode 112, the third electrode 122, and the fifth electrode are located at, for example, a pixel electrode layer.

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

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 (izo) layer. In some embodiments, the first electrode 112 is a reflective electrode, and includes 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 and second transparent conductive layers may be ITO, indium zinc oxide, etc., and the reflective layer may be a metal layer, such as made of silver. The third electrode 122 and the fifth electrode may be made of the same material as the first electrode 112.

In some embodiments, the second electrode 113 comprises 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 on the substrate 101 is composed of one first pattern unit or is composed of a concatenation of more than two first pattern units, the first pattern units comprising 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 first electrode 112 on the substrate 101 is composed of one second pattern unit or is composed of a concatenation of two or more second pattern units, the second pattern units comprising at least one selected from the group consisting of a circle, an ellipse, a dumbbell, a gourd, and a rectangle.

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

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

For example, the display panel 10 may further include an encapsulation layer, and a polarizer and a cover plate located above the encapsulation layer, or the cover plate may be directly disposed above the encapsulation layer, without disposing a polarizer, or at least the cover plate may be directly disposed above the encapsulation layer of the first display area AA1, without disposing a polarizer, so as to avoid the polarizer from affecting the light collection amount of the photosensitive element disposed below the first display area AA1, and of course, the polarizer may also be disposed above the encapsulation layer of the first display area AA 1.

An example 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. The following description will be given taking as an example a display device of an embodiment including the display panel 10 of the above-described embodiment. In the display device of the present embodiment, the display panel 10 may be the display panel 10 of one of the above embodiments, 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 optional embodiments, the display device further includes a photosensitive element disposed on one side of the display panel 10, and an orthographic 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 through the first display area AA1 to obtain light information.

The photosensitive component can be an image acquisition device and is used for acquiring external image information. For example, the photosensitive component is a Complementary Metal Oxide Semiconductor (CMOS) image capture Device, and in some other embodiments, the photosensitive component may also be a Charge-coupled Device (CCD) image capture Device or other types of image capture devices. It will be appreciated that the photosensitive component may not be limited to an image capture device, for example, in some embodiments, the photosensitive component may also be an infrared sensor, a proximity sensor, an infrared lens, a flood sensing element, an ambient light sensor, and a light sensor such as a dot matrix projector.

According to the display device provided by the embodiment of the invention, the light transmittance of the first display area AA1 is greater than that of the transition display area AA2, so that the display panel 10 can integrate photosensitive components on the back of the first display area AA1, for example, under-screen integration of the photosensitive components of an image acquisition device is realized, and meanwhile, the first display area AA1 can display pictures, so that the display area of the display panel 10 is increased, and the full-screen design of the display device is realized.

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

In accordance with the above-described embodiments of the present invention, these embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. 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 embodiments with various modifications as are suited to the particular use contemplated. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A display panel, wherein the display panel has a first display area, a transition display area and a second display area, the transition display area is located between the first display area and the second display area, and a light transmittance of the first display area is greater than a light transmittance of the transition display area, the display panel comprises:

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

the pixel circuit comprises a first pixel circuit which is used for driving the first sub-pixel and is positioned in the transitional 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 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 section and a second section connected in succession, the first section is for connecting the first pixel circuits located in different rows, the second section is for connecting the first pixel circuits located in different columns, and a material of the second section includes a transparent material.

2. The display panel according to claim 1, further comprising:

a connection wire, the first pixel circuit and the first sub-pixel connected thereto being arranged in the same row, the connection wire extending in the first direction and being used to connect the first sub-pixel and the first pixel circuit, a material of the connection wire including a transparent material;

preferably, the connecting lead and the second section are arranged in the same layer and material.

3. The display panel according to claim 1,

the plurality of sub-pixels further comprises a transition sub-pixel located in the transition display area;

the signal lines further comprise transition signal lines positioned in the transition display area, the transition signal lines are connected to the transition pixel circuits used for driving the transition sub-pixels in the same column, and the first signal lines and the transition signal lines corresponding to the first sub-pixels and the transition sub-pixels in the same column are connected with each other;

preferably, 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 in the column;

preferably, the size of the first sub-pixel is smaller than the size of the transition sub-pixel of the same color.

4. The display panel according to claim 3,

the plurality of sub-pixels further comprise a second sub-pixel located in the second display area;

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

the signal line further comprises a second signal line positioned in the second display area, and the second signal line is connected to a plurality of 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 number of columns of the transition sub-pixels and the sum of 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;

preferably, the size of the first sub-pixel is smaller than the size of the second sub-pixel of the same color;

preferably, the size of the transition sub-pixel is smaller than the size of the second sub-pixel of the same color.

5. The display panel according to claim 4,

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

the two or more first sub-pixels are connected to the same first pixel circuit, and/or the two or more transition sub-pixels are connected to the same transition pixel circuit;

preferably, two or more adjacent first sub-pixels of the same color are connected to the same first pixel circuit;

preferably, two or more adjacent transition sub-pixels of the same color are connected to the same transition pixel circuit.

6. The display panel according to claim 3,

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 along the second direction in a staggered way, and the material of the third part comprises a transparent material;

preferably, the third section and the second section are arranged in the same layer and material;

preferably, the fourth section and the first section are provided in the same layer and material.

7. The display panel according to claim 6, characterized in that 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;

a second conductive layer, wherein the third and second sections are located on the second conductive layer, and the first and second conductive layers are sequentially distributed on the same side of the substrate;

the insulating layer is positioned between the first conducting layer and the second conducting 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;

preferably, 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.

8. The display panel according to claim 7, further comprising:

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

the first sub-pixel comprises a first light-emitting structure, a first electrode and a second electrode, 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;

preferably, the orthographic projection of each first light-emitting structure on the substrate is composed of one first graphic unit or is composed of more than two first graphic units which are spliced, and the first graphic units comprise at least one selected from the group consisting of a circle, an ellipse, a dumbbell, a gourd and a rectangle;

preferably, the orthographic projection of each first electrode on the substrate is composed of one second graphic unit or is composed of more than two second graphic units in a splicing manner, and the second graphic units comprise at least one selected from the group consisting of a circle, an ellipse, a dumbbell, a gourd and a rectangle;

preferably, the first electrode is a light-transmitting electrode;

preferably, the first electrode is a reflective electrode;

preferably, the first electrode comprises an indium tin oxide layer or an indium zinc oxide layer;

preferably, the second electrode comprises a magnesium silver alloy layer.

9. The display panel according to claim 3,

the transitional display area is provided with a plurality of annular areas which surround the peripheral side of the first display area and are concentrically distributed with the first display area, and the first pixel circuits 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 which are symmetrically distributed about the second symmetry axis are positioned in the same annular area, and the first pixel circuits are positioned on one side of the first sub-pixels which are connected with the first pixel circuits and deviate from the second symmetry axis;

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

preferably, 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;

preferably, 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, and the transition signal lines are symmetrically disposed about the first symmetry axis;

preferably, the first display area is circular, elliptical or regular polygonal.

10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.