Display panel and display apparatus

Abstract

A display panel and a display apparatus. The display panel comprises a plurality of pixel units. Each pixel unit comprises a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel. The area of a light-emitting region of the second color sub-pixel and the area of a light-emitting region of the third color sub-pixel are both smaller than the area of a light-emitting region of the first color sub-pixel. Each sub-pixel comprises a first electrode, a light-emitting layer, and a second electrode. In a same pixel unit, color sub-pixels of the same type comprise one first electrode. In at least one pixel unit, the light-emitting region of the first color sub-pixel comprises a plurality of first sub-light-emitting regions arranged at intervals, and the first electrode of the first color sub-pixel comprises a plurality of first sub-electrodes arranged in one-to-one correspondence with the plurality of first sub-light-emitting regions. Configuring the first electrode of the first color sub-pixel to comprise a plurality of first sub-electrodes in a same pixel unit is beneficial for reducing the probability of dark spot defects while achieving a high pixel aperture ratio of the sub-pixel.

Description

Display panel and display device Technical Field

[0001] This disclosure relates to a display panel and a display device. Background Technology

[0002] An organic light-emitting diode (OLED) display device's panel includes a substrate, a light-emitting layer disposed on the substrate, and an encapsulation protective layer that encapsulates the light-emitting layer. Typically, a fine metal mask (FMM) is used to deposit organic light-emitting materials onto the substrate at corresponding locations to form the light-emitting layer of the sub-pixels. Currently, there are increasingly higher requirements for the lifespan and resolution of medium-to-large-sized display devices. Summary of the Invention

[0003] This disclosure provides a display panel and a display device.

[0004] This disclosure provides a display panel, including a substrate and a plurality of pixel units located on the substrate. Each pixel unit includes a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel, wherein the area of ​​the light-emitting region of the second color sub-pixel and the area of ​​the light-emitting region of the third color sub-pixel are both smaller than the area of ​​the light-emitting region of the first color sub-pixel; each sub-pixel includes a first electrode, a light-emitting layer, and a second electrode stacked sequentially, with the first electrode located between the light-emitting layer and the substrate. In the same pixel unit, the same color sub-pixel includes one first electrode; in at least one pixel unit, the light-emitting region of the first color sub-pixel includes a plurality of first sub-light-emitting regions spaced apart, and the first electrode of the first color sub-pixel includes a plurality of first sub-electrodes corresponding one-to-one with the plurality of first sub-light-emitting regions.

[0005] For example, according to embodiments of this disclosure, other color sub-pixels or other first color sub-pixels are disposed between two adjacent first sub-electrodes in the same first color sub-pixel.

[0006] For example, according to an embodiment of this disclosure, in the same pixel unit, the second color sub-pixel and the third color sub-pixel are arranged along a first direction, the first color sub-pixel is located on at least one side of the second color sub-pixel in a second direction, and the second direction intersects with the first direction; between two adjacent second color sub-pixels in the second direction, a plurality of light-emitting areas of the first color sub-pixel located in different pixel units are provided, and the light-emitting layers in the plurality of light-emitting areas are configured to be formed using the same mask opening.

[0007] For example, according to an embodiment of this disclosure, the plurality of light-emitting areas includes light-emitting areas of two first color sub-pixels, wherein the light-emitting area of ​​one of the two first color sub-pixels is located between at least two of the plurality of first sub-light-emitting areas of the other first color sub-pixel.

[0008] For example, according to an embodiment of this disclosure, the plurality of light-emitting areas includes the light-emitting areas of two first color sub-pixels, and the light-emitting areas of the two first color sub-pixels are arranged along the second direction.

[0009] For example, according to an embodiment of this disclosure, in the same pixel unit, the plurality of first sub-light-emitting areas include two sets of first sub-light-emitting areas, and the two sets of first sub-light-emitting areas are respectively located on both sides of the second color sub-pixel in the second direction.

[0010] For example, according to an embodiment of this disclosure, the two closest sub-pixels in two adjacent pixel units arranged along the first direction are sub-pixels with the same color, and the light-emitting layers of the two sub-pixels are configured to be formed using the same mask opening.

[0011] For example, according to an embodiment of this disclosure, the plurality of pixel units includes a plurality of pixel unit pairs arranged in an array along the first direction and the second direction. Each pixel unit pair includes a first pixel unit and a second pixel unit arranged along the second direction. At least the first color sub-pixel in the first pixel unit includes the plurality of first sub-light-emitting areas. The plurality of first sub-light-emitting areas are divided into a plurality of groups of first sub-light-emitting areas arranged along the first direction. The light-emitting area of ​​the first color sub-pixel in the second pixel unit is disposed between two groups of first sub-light-emitting areas.

[0012] For example, according to an embodiment of this disclosure, in each pixel unit pair, all first color sub-pixels are disposed between the second color sub-pixels of the first pixel unit and the second color sub-pixels of the second pixel unit, and between the third color sub-pixels of the first pixel unit and the third color sub-pixels of the second pixel unit.

[0013] For example, according to an embodiment of this disclosure, the two sub-pixels that are closest to each other in two adjacent pixel units are sub-pixels with the same color, and the light-emitting layers of the two sub-pixels are configured to be formed using the same mask opening.

[0014] For example, according to embodiments of this disclosure, in at least some pixel units, the light-emitting area of ​​the first color sub-pixel includes at least one first sub-light-emitting area; the plurality of pixel units include a plurality of pixel unit pairs arranged in an array along the first direction and the second direction, and different pixel units in the same pixel unit pair include different numbers of the first sub-light-emitting areas.

[0015] For example, according to an embodiment of this disclosure, in the same pixel unit pair, the ratio of the area of ​​the first sub-light-emitting region included in different pixel units is 0.9 to 1.1.

[0016] For example, according to an embodiment of this disclosure, in the same pixel unit, the first electrode of the first color sub-pixel includes two electrode blocks corresponding to the two sets of first sub-light-emitting regions and a connecting electrode connecting the two electrode blocks. The connecting electrode is located on the side of the first electrode of the second color sub-pixel away from the first electrode of the third color sub-pixel or on the side of the first electrode of the third color sub-pixel away from the first electrode of the second color sub-pixel.

[0017] For example, according to an embodiment of this disclosure, in the same pixel unit, the first electrode of one of the second color sub-pixels and the third color sub-pixels overlaps with the orthographic projection of the connecting electrode on a plane extending along the first direction and perpendicular to the substrate.

[0018] For example, according to an embodiment of this disclosure, in at least one pixel unit, the light-emitting area of ​​at least one of the second color sub-pixel and the third color sub-pixel includes a plurality of second sub-light-emitting areas spaced apart, and the first electrode of at least one of the second color sub-pixel and the third color sub-pixel includes a plurality of second sub-electrodes corresponding one-to-one with the plurality of second sub-light-emitting areas.

[0019] For example, according to an embodiment of this disclosure, in the same pixel unit, the second color sub-pixel and the third color sub-pixel are arranged along a first direction, and the light-emitting area of ​​one of the second color sub-pixel and the third color sub-pixel is located on at least one side of the light-emitting area of ​​the other in the first direction.

[0020] For example, according to an embodiment of this disclosure, at least one electrode block includes at least one first sub-electrode.

[0021] For example, according to an embodiment of this disclosure, the at least one electrode block includes a plurality of first sub-electrodes, and the first sub-light-emitting area corresponding to each first sub-electrode includes a curved edge.

[0022] For example, according to an embodiment of this disclosure, the light-emitting area of ​​at least one of the second color sub-pixel and the third color sub-pixel includes a curved edge.

[0023] For example, according to an embodiment of this disclosure, the display panel further includes: a pixel defining pattern located on the substrate; a black matrix located on the side of the pixel defining pattern away from the substrate; and a color filter layer located on the side of the black matrix away from the substrate. The pixel defining pattern includes a plurality of pixel openings to define the light-emitting areas of the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel. The plurality of pixel openings includes a plurality of first openings corresponding one-to-one with the plurality of first sub-light-emitting areas, and the plurality of first openings are spaced apart. The black matrix includes a plurality of black matrix openings, which correspond one-to-one with the plurality of pixel openings, and the plurality of black matrix openings include a plurality of second openings corresponding one-to-one with the plurality of first openings, and the plurality of second openings are spaced apart.

[0024] For example, according to an embodiment of this disclosure, the color filter layer includes a plurality of first color filters, a plurality of second color filters, and a plurality of third color filters, with the same first color filter covering the plurality of first openings.

[0025] Another embodiment of this disclosure provides a display device including any of the above-described display panels. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this disclosure and are not intended to limit this disclosure.

[0027] Figure 1 is a schematic diagram of pixel arrangement in a display device.

[0028] Figure 2 is a schematic diagram of a pixel arrangement according to an embodiment of the present disclosure.

[0029] Figure 3 is a schematic diagram of a partial cross-sectional structure cut along line AA' shown in Figure 2.

[0030] Figure 4A is a schematic diagram of the first electrode of different color sub-pixels in a pixel unit shown in Figure 2.

[0031] Figure 4B is an equivalent diagram of a pixel circuit included in each sub-pixel.

[0032] Figure 4C is a stacked diagram of the first metal layer and the first electrode of each sub-pixel in the display panel.

[0033] Figure 4D is a stacking diagram of the second metal layer and the first electrode of each sub-pixel in the display panel.

[0034] Figure 5 is a schematic diagram of a mask opening forming the display panel shown in Figure 2.

[0035] Figure 6 is a schematic diagram of another pixel arrangement provided according to an embodiment of the present disclosure.

[0036] Figure 7 is a schematic diagram of the first electrode of a different color sub-pixel in a pixel unit of the pixel arrangement shown in Figure 6.

[0037] Figure 8 is a diagram showing the stacking relationship of the multilayer films in the display panel shown in Figure 6.

[0038] Figure 9 is a schematic diagram of a partial cross-sectional structure cut along line BB' shown in Figure 8.

[0039] Figure 10 is a diagram showing the stacking relationship of a multilayer film provided according to another example of an embodiment of the present disclosure.

[0040] Figure 11 is a schematic diagram of another pixel arrangement provided according to an embodiment of the present disclosure.

[0041] Figure 12 is a schematic diagram of another pixel arrangement provided according to an embodiment of the present disclosure.

[0042] Figure 13 is a schematic diagram of an opening in a mask template for forming the display panel shown in Figure 12.

[0043] Figure 14 is a schematic diagram of another pixel arrangement provided according to an embodiment of the present disclosure.

[0044] Figure 15 is a schematic diagram of the first electrode of a different color sub-pixel in a pixel unit of the display panel shown in Figure 14.

[0045] Figure 16 is a schematic diagram of another pixel arrangement provided according to an embodiment of the present disclosure.

[0046] Figure 17 is a schematic block diagram of a display device provided according to another embodiment of the present disclosure. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. Based on the described embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0048] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as “comprising” or “including” mean that an element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects.

[0049] Unless otherwise specified in the following embodiments of this disclosure, the quantity of a component is implied to mean that the component may be one or more, or can be understood as at least one. "At least one" means one or more, and "more" means at least two.

[0050] Figure 1 is a schematic diagram of pixel arrangement in a display device. As shown in Figure 1, the display device includes multiple pixels 094, each pixel 094 including three different color sub-pixels, such as blue sub-pixel 091, red sub-pixel 092, and green sub-pixel 093. The sub-pixels in each pixel are arranged in an S-shaped red-green-blue (S-stripe RGB, SRGB) arrangement. Figure 1 schematically shows the distribution of the light-emitting area of ​​each color sub-pixel, that is, the distribution of the pixel opening. Each color sub-pixel includes a stacked anode, a light-emitting layer, and a cathode. The shapes of the anode and the pixel opening are different, and the relative positional relationship of the anodes of different color sub-pixels is basically the same as the relative positional relationship of the pixel openings corresponding to different color sub-pixels.

[0051] In their research, the inventors of this application discovered that when the display device shown in Figure 1 is a medium-sized display device applied to automotive displays, the increasing lifespan requirements lead to larger pixel aperture ratios, resulting in larger anode areas for sub-pixels. In dark spot defect analysis, a larger anode area makes it difficult for gases and other contaminants in the organic layer between the anode and the substrate to release, causing corrosion of the anode and damage to the light-emitting layer. This leads to electrical connection between the anode and cathode, resulting in dark spots. Furthermore, due to the larger anode area, during the repair process of bright spots, such as when using lasers to turn bright spots into dark spots, the repaired dark spots can easily affect the display, causing color defects.

[0052] This disclosure provides a display panel and a display device. The display panel includes a substrate and a plurality of pixel units located on the substrate. Each pixel unit includes a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel. The area of ​​the light-emitting region of the second color sub-pixel and the area of ​​the light-emitting region of the third color sub-pixel are both smaller than the area of ​​the light-emitting region of the first color sub-pixel. Each sub-pixel includes a first electrode, a light-emitting layer, and a second electrode stacked sequentially, with the first electrode located between the light-emitting layer and the substrate. In the same pixel unit, the same color sub-pixel includes one first electrode. In at least one pixel unit, the light-emitting region of the first color sub-pixel includes a plurality of first sub-light-emitting regions spaced apart, and the first electrode of the first color sub-pixel includes a plurality of first sub-electrodes corresponding one-to-one with the plurality of first sub-light-emitting regions.

[0053] The display panel provided in this disclosure achieves a block design of the first electrode of the first color sub-pixel by setting the first electrode of the first color sub-pixel in the same pixel unit to include multiple first sub-electrodes. This not only enables the sub-pixel to have a high pixel aperture ratio, but also facilitates the exhaust of gas from the film layer between the first electrode and the substrate, reducing the dark spot defect rate while increasing the bright spot defect repair rate, thereby improving the display effect.

[0054] The display panel and display device provided in the embodiments of this disclosure are described below with reference to the accompanying drawings.

[0055] Figure 2 is a schematic diagram of a pixel arrangement according to an embodiment of the present disclosure. Figure 3 is a schematic diagram of a partial cross-sectional structure taken along line AA' shown in Figure 2. Figure 4A is a schematic diagram of the first electrode of different color sub-pixels in a pixel unit shown in Figure 2.

[0056] As shown in Figures 2 and 3, the display panel includes a substrate 01 and a plurality of pixel units 10 located on the substrate 01. Each pixel unit 10 includes a first color sub-pixel 100, a second color sub-pixel 200, and a third color sub-pixel 300. For example, each pixel unit 10 can also be referred to as a pixel. In each pixel unit 10, the area of ​​the light-emitting region 23 of the second color sub-pixel 200 and the area of ​​the light-emitting region 32 of the third color sub-pixel 300 are both smaller than the area of ​​the light-emitting region of the first color sub-pixel 100; each sub-pixel includes a first electrode 410, a light-emitting layer 430, and a second electrode 420 stacked sequentially, with the first electrode 410 located between the light-emitting layer 430 and the substrate 01. For example, each sub-pixel includes a first electrode 410, a light-emitting layer 430, and a second electrode 420 stacked sequentially along a Z direction perpendicular to the substrate 01.

[0057] For example, as shown in Figures 2 and 4A, the first color sub-pixel 100 can be a blue sub-pixel, and one of the second color sub-pixel 200 and the third color sub-pixel 300 can be a red sub-pixel, while the other can be a green sub-pixel. For example, the second color sub-pixel 200 can be a red sub-pixel, and the third color sub-pixel 300 can be a green sub-pixel. For example, in the same pixel unit 10, the area of ​​the light-emitting region of the blue sub-pixel is larger than the area of ​​the light-emitting region of the red sub-pixel, and the area of ​​the light-emitting region of the blue sub-pixel is larger than the area of ​​the light-emitting region of the green sub-pixel. Figure 2 schematically shows the outline of the light-emitting region of each color sub-pixel with rectangular boxes, but the outline of the light-emitting region of each sub-pixel is not limited to the standard rectangle shown in Figure 2, and can also be a rounded rectangle or a rounded quadrilateral, or other approximate rectangular shape.

[0058] For example, as shown in Figures 2 and 4A, the area of ​​the first electrode 410 of the second color sub-pixel 200 and the area of ​​the first electrode 410 of the third color sub-pixel 300 are both smaller than the area of ​​the first electrode 410 of the first color sub-pixel 100.

[0059] For example, as shown in Figures 2 and 3, in addition to the light-emitting layer 430, other functional layers may be included between the first electrode 410 and the second electrode 420. These other functional layers may include hole injection layers, hole transport layers, electron transport layers, electron injection layers, and other films. For example, the light-emitting layer is formed using a fine metal mask, and at least one of the other functional layers can be a single, continuous film, such as formed using an open mask. For example, the first electrode 410 can be an anode, and the second electrode 420 can be a cathode. For example, the first electrodes 410 of different color sub-pixels are spaced apart from each other, and the second electrodes 420 of different color sub-pixels can be integrally formed electrodes, such as electrodes formed over an entire surface. Figure 3 schematically simplifies the other films between the first electrode 410 and the substrate 01 to film layer 02. Film layer 02 may include multiple conductive layers and insulating layers located between adjacent conductive layers. For example, the multiple conductive layers may include pixel circuits electrically connected to the first electrode 410 and signal lines electrically connected to the pixel circuits; the insulating layers may include organic layers, inorganic layers, and other films.

[0060] For example, as shown in Figures 2 and 3, the display panel can be a light-emitting diode display panel.

[0061] In some examples, as shown in FIG3, the display panel further includes a pixel defining pattern 600 located on a substrate 01. The pixel defining pattern 600 includes a plurality of pixel openings 610 to define the light-emitting areas of a first color sub-pixel 100, a second color sub-pixel 200, and a third color sub-pixel 300. For example, a light-emitting layer 430 located within the pixel opening 610 emits light by contacting a first electrode 410 and a second electrode 420. For example, the pixel opening 610 is used to define the light-emitting area of ​​the sub-pixel.

[0062] As shown in Figures 2 to 4A, in the same pixel unit 10, sub-pixels of the same color include a first electrode 410. For example, in the same pixel unit 10, the first electrodes 410 of different color sub-pixels are spaced apart, and the first electrodes 410 of the same color sub-pixels are integrally formed. For example, in the same pixel unit 10, the first electrodes 410 of the same color sub-pixels are electrically connected to the same pixel circuit.

[0063] As shown in Figures 2 to 4A, in at least one pixel unit 10, the light-emitting area of ​​the first color sub-pixel 100 includes a plurality of first sub-light-emitting areas 101 arranged at intervals, and the first electrode 410 of the first color sub-pixel 100 includes a plurality of first sub-electrodes 110 arranged in a one-to-one correspondence with the plurality of first sub-light-emitting areas 101.

[0064] The display panel provided in this disclosure, by setting the first color sub-pixel with a larger first electrode area to include multiple first sub-electrodes, facilitates the release of gas generated in the organic layer between the first electrode and the substrate, prevents the first electrode from being corroded and damaging the light-emitting layer, thus causing dark spots, and improves the repair rate of bright spot defects.

[0065] For example, as shown in FIG2, in each pixel unit 10, the first color sub-pixel 100 includes two first sub-electrodes 110 connected to each other. By dividing the original large area of ​​the first color sub-pixel 100 into two smaller area first sub-electrodes 110, it is beneficial to the emission of gas in the organic layer between the first electrode 410 and the substrate 01.

[0066] In some examples, as shown in Figures 2 and 3, the plurality of pixel openings 610 include a plurality of first openings 611 that are configured one-to-one with a plurality of first sub-light-emitting regions 101, and the plurality of first openings 611 are spaced apart; for example, the first openings 611 are configured to define the area of ​​the first sub-light-emitting region 101.

[0067] In some examples, as shown in Figures 2 to 4A, other color sub-pixels or other first color sub-pixels 100 are disposed between two adjacent first sub-electrodes 110 of the same first color sub-pixel 100. For example, a first electrode 410 of another color sub-pixel or a first electrode 410 of another first color sub-pixel 100 is disposed between two adjacent first sub-electrodes 110 of the same first color sub-pixel 100.

[0068] For example, as shown in Figures 2 to 4A, the first electrodes 410 of the second color sub-pixel 200 and the third color sub-pixel 300 are disposed between two adjacent first sub-electrodes 110 in the same first color sub-pixel 100. For example, the light-emitting areas of the second color sub-pixel 200 and the third color sub-pixel 300 are disposed between two adjacent first sub-light-emitting areas 101 in the same first color sub-pixel 100.

[0069] By setting other color sub-pixels between two first sub-electrodes 110 in the same first color sub-pixel 100, it is beneficial to alleviate the color shift problem.

[0070] For example, as shown in Figures 2 and 4A, the two first sub-electrodes 110 in the same first color sub-pixel 100 correspond to the two first sub-light-emitting regions 101 with the same area. For example, the two first sub-electrodes 110 in the same first color sub-pixel 100 can have the same shape or different shapes. For example, in the same pixel unit 10, the two first sub-light-emitting regions 101 of the first color sub-pixel 100 can be symmetrically distributed with respect to the center line extending along the X direction in the pixel unit 10.

[0071] In some examples, as shown in Figures 2 and 4A, within the same pixel unit 10, a second color sub-pixel 200 and a third color sub-pixel 300 are arranged along a first direction, with the first color sub-pixel 100 located on at least one side of the second color sub-pixel 200 along a second direction, the second direction intersecting the first direction. For example, the first direction can be the X direction, and the second direction can be the Y direction, but is not limited thereto; the first and second directions can be interchanged. For example, the first and second directions can be perpendicular, but are not limited thereto; the angle between the first and second directions can be 80 to 100 degrees.

[0072] For example, as shown in Figure 2, in a column of pixel units 10 arranged along the first direction, the second color sub-pixel 200 and the third color sub-pixel 300 are arranged alternately along the first direction.

[0073] For example, as shown in Figure 2, the distance between two first sub-light-emitting areas 101 in the same first color sub-pixel 100 is greater than the distance between two adjacent first sub-light-emitting areas 101 in two first color sub-pixels 100 arranged in the second direction.

[0074] In some examples, as shown in Figure 2, multiple light-emitting areas of first color sub-pixels 100 located in different pixel units 10 are provided between two adjacent second color sub-pixels 200 in the second direction, such as multiple first sub-light-emitting areas 101. These multiple light-emitting areas include the light-emitting areas of two first color sub-pixels 100, such as two first sub-light-emitting areas 101, and the light-emitting areas of these two first color sub-pixels 100 are arranged along the second direction.

[0075] By setting multiple light-emitting areas of the first color sub-pixel 100 located in different pixel units 10 between two second color sub-pixels 200, it is beneficial to alleviate the color shift problem and improve the aperture ratio of the sub-pixels.

[0076] For example, as shown in FIG2, two first sub-light emission areas 101 are provided between two adjacent third color sub-pixels 300 in the second direction, which are respectively located in the first color sub-pixels 100 in different pixel units 10.

[0077] In some examples, as shown in Figure 2, in the same pixel unit 10, multiple first sub-light-emitting areas 101 include two sets of first sub-light-emitting areas 1010, which are located on both sides of the second color sub-pixel 200 in the second direction; this helps to alleviate the color shift problem.

[0078] For example, as shown in Figure 2, the number of first sub-light-emitting regions 101 included in the two groups of first sub-light-emitting regions 1010 can be the same or different. For example, both groups of first sub-light-emitting regions 1010 may each include one first sub-light-emitting region 101.

[0079] In some examples, as shown in Figure 4A, in the same pixel unit 10, the first electrode 410 of the first color sub-pixel 100 includes two electrode blocks 411 corresponding to two sets of first sub-light-emitting areas 1010 respectively, and a connecting electrode 412 connecting the two electrode blocks 411. The connecting electrode 412 is located on the side of the second color sub-pixel 200 away from the third color sub-pixel 300 or on the side of the third color sub-pixel 300 away from the second color sub-pixel 200. By setting the position of the connecting electrode 412, it is beneficial to improve the compactness of the pixel arrangement.

[0080] In some examples, as shown in FIG4A, at least one electrode block 411 includes at least one first sub-electrode 110. FIG4A schematically shows that each electrode block 411 includes a first sub-electrode 110, that is, each electrode block 411 corresponds to a first sub-light-emitting region 101.

[0081] In some examples, as shown in FIG4A, in the same pixel unit 10, the first electrode 410 of one of the second color sub-pixels 200 and the third color sub-pixels 300 overlaps with the orthographic projection of the connecting electrode 412 on a plane extending along a first direction and perpendicular to the substrate 01.

[0082] For example, as shown in Figure 4A, the connecting electrode 412 is located on the side of the light-emitting area 23 of the second color sub-pixel 200 away from the light-emitting area 32 of the third color sub-pixel 300. The first electrode 410 of the second color sub-pixel 200 protrudes relative to the electrode block 411 of the first color sub-pixel 100. The connecting electrode 412 bypasses the first electrode 410 of the second color sub-pixel 200 and connects to the two electrode blocks 411 on both sides. For example, the electrode block 411 and the connecting electrode 412 can be an integrated structure.

[0083] This disclosure is not limited to this embodiment; the connecting electrode 412 may also be located on the side of the third color sub-pixel 300 away from the second color sub-pixel 200.

[0084] For example, as shown in FIG4A, one of the two electrode blocks 411 includes an anode connection portion 4111, which is electrically connected to the pixel circuit of the anode connection portion 4111 and the substrate 01. For example, the anode connection portion 4111 does not overlap with the first sub-light-emitting region 101.

[0085] Figure 4B is an equivalent diagram of a pixel circuit included in each sub-pixel.

[0086] For example, as shown in Figure 4B, each pixel circuit includes a data writing transistor T4, a driving transistor T3, a threshold compensation transistor T2, a first reset control transistor T7, a first light emission control transistor T6, a second light emission control transistor T5, a second reset transistor T1, and a storage capacitor Cst.

[0087] For example, as shown in Figure 4B, the first terminal of the second reset transistor T1 is electrically connected to the reset power supply signal line to receive the reset signal Vinit1; the second terminal of the second reset transistor T1 is electrically connected to the gate of the driving transistor T3; and the gate of the second reset transistor T1 is electrically connected to the reset control signal line to receive the reset control signal Reset. The first terminal of the threshold compensation transistor T2 is connected to the first terminal of the driving transistor T3; the second terminal of the threshold compensation transistor T2 is connected to the gate of the driving transistor T3; and the gate of the threshold compensation transistor T2 is electrically connected to the scan signal line to receive the compensation control signal. The first terminal of the storage capacitor Cst is electrically connected to the first power supply signal line VDD; and the second terminal of the storage capacitor Cst is electrically connected to the gate of the driving transistor T3. The gate of the data writing transistor T4 is electrically connected to the scan signal line to receive the scan signal Gate; the first terminal of the data writing transistor T4 is connected to the second terminal of the driving transistor T3; and the second terminal of the data writing transistor T4 is electrically connected to the data line. The first electrode of the light control transistor T5 is electrically connected to the first power signal line VDD to receive the first power signal VDD. The second electrode of the second light-emitting control transistor T5 is electrically connected to the second electrode of the driving transistor T3, and the gate of the second light-emitting control transistor T5 is electrically connected to the light-emitting control signal line to receive the light-emitting control signal EM. The gate of the first light-emitting control transistor T6 is electrically connected to the light-emitting control signal line to receive the light-emitting control signal EM, the first electrode of the first light-emitting control transistor T6 is electrically connected to the first electrode of the driving transistor T3, and the second electrode of the first light-emitting control transistor T6 is electrically connected to the first electrode of the light-emitting element EL. The first electrode of the first reset control transistor T7 is connected to the reset power signal line to receive the reset signal Vinit2, the second electrode of the first reset control transistor T7 is connected to the first electrode of the light-emitting element EL, and the gate of the first reset transistor T7 is electrically connected to the reset control signal line to receive the reset control signal Reset. The second electrode of the light-emitting element EL is connected to the second power signal line VSS. The first power signal line VDD is connected to a voltage source to output a constant voltage signal, such as a positive voltage signal.

[0088] For example, the reset signal Vinit1 and the reset signal Vinit2 can be different, and the pixel circuit shown in Figure 4B can be a dual Vinit 7T1C circuit.

[0089] It should be noted that, in the embodiments of this disclosure, the pixel circuit of the sub-pixel can be a 7T1C (i.e., seven transistors and one capacitor) structure as shown in Figure 4B, or it can be a structure including other numbers of transistors, such as a 7T2C structure, a 6T1C structure, a 6T2C structure or a 9T2C structure. The embodiments of this disclosure do not limit this.

[0090] Figure 4C is a stack-up diagram of the first metal layer and the first electrode of each sub-pixel in the display panel. Figure 4D is a stack-up diagram of the second metal layer and the first electrode of each sub-pixel in the display panel.

[0091] For example, as shown in Figures 4B to 4D, the first metal layer is located between the second metal layer and the first electrode 410 of each sub-pixel. For example, the first metal layer includes a first power signal line VDD, a second power signal line VSS, and a data line DATA. The first power signal line VDD is electrically connected to the first electrode of the second light-emitting control transistor T5, the second power signal line VSS is electrically connected to the second electrode of the light-emitting element EL, and the data line DATA is electrically connected to the second electrode of the data writing transistor T4. For example, the first metal layer also includes multiple connection portions 004, through which the first electrode 410 of each sub-pixel is electrically connected to the second electrode of the first light-emitting control transistor T6. For example, an insulating layer, such as a planarization layer, is provided between the first electrode 410 and the connection portion 004. A via 005 is provided in the insulating layer, through which the first electrode 410 is electrically connected to the connection portion 004. For example, the position of the via 005 can be adjusted according to the node position of the pixel circuit.

[0092] For example, as shown in Figures 4B to 4D, the second metal layer includes a scan signal line 031, a reset control signal line 033, a connection electrode 051, a connection electrode 053, a power connection line 044, a signal line 045, and a connection electrode 055. For example, the scan signal line 031 is electrically connected to the gate of the threshold compensation transistor T2, the reset control signal line 033 is electrically connected to the gate of the second reset transistor T1, the first power signal line VDD can be electrically connected to the first electrode of the storage capacitor Cst through the power connection line 044, the signal line 045 is electrically connected to the gate of the first reset control transistor T7, the data line DATA can be electrically connected to the second electrode of the data writing transistor T4 through the connection electrode 053, and the connection part 004 is electrically connected to the second electrode of the first light-emitting control transistor T6 through the connection electrode 055.

[0093] For example, the pixel arrangement shown in FIG2 provided in the embodiments of this disclosure and the general pixel arrangement shown in FIG1 were subjected to the same resolution (e.g., PPI≈250) and the same pixel pitch (e.g., pixel pitch≈100 micrometers), and the results of the granularity and edge jaggedness simulation were obtained as follows.

[0094] Lightness variance can represent the degree of pixelation in a display to some extent. The lightness variance of the pixel arrangement shown in Figure 1 is 37, while that of the pixel arrangement shown in Figure 2 is 34. Therefore, the pixel arrangement shown in Figure 2 has a smaller lightness variance, resulting in a more refined display.

[0095] The pixel arrangement shown in Figure 2 has no obvious jagged edges on a white screen.

[0096] Figure 5 is a schematic diagram of a mask opening forming the display panel shown in Figure 2.

[0097] In some examples, as shown in Figures 2 and 5, multiple light-emitting regions, such as multiple first sub-light-emitting regions 101, are provided between two adjacent second color sub-pixels 200 in the second direction and located in different pixel units 10. The light-emitting layers in these multiple light-emitting regions are configured to be formed using the same mask opening 901.

[0098] By setting the position of the first sub-light emission area 101 of the first color sub-pixel 100 in different pixel units 10, the first color sub-pixels 100 in adjacent pixel units 10 can share a mask opening, which is beneficial to improving the aperture ratio of the sub-pixels.

[0099] For example, as shown in Figures 2 and 5, the same mask opening 901 corresponds to four pixel openings 610, such that the same mask opening 901 is used to form the light-emitting layer within the four first sub-light-emitting regions 101, and these four first sub-light-emitting regions 101 are the first sub-light-emitting regions 101 of four different first color sub-pixels 100. For example, the four first color sub-pixels 100 can use the same mask opening, such as the opening of a fine metal mask (FMM) to vapor-deposit a portion of the light-emitting layer.

[0100] By having the four first sub-light emission regions 101 included in the four first color sub-pixels 100 share the same mask opening, it is beneficial to improve the alignment accuracy and material utilization, and increase the aperture ratio of the sub-pixels.

[0101] For example, as shown in Figures 2 and 5, the same mask opening 902 corresponds to one pixel opening 610, and the same mask opening 903 corresponds to one pixel opening 610. For example, the emissive layer of a second color sub-pixel 200 is deposited using one mask opening 902, and the emissive layer of a third color sub-pixel 300 is deposited using one mask opening 903.

[0102] For example, as shown in Figure 2, the distance between the light-emitting area of ​​the first color sub-pixel 100 and the light-emitting area of ​​the second color sub-pixel 200 is 'a', and the distance between the light-emitting area of ​​the second color sub-pixel 200 and the light-emitting area of ​​the third color sub-pixel 300 is 'c', where a = c, and both are gaps (PDL gaps) between adjacent pixel openings 610. For example, the values ​​of a and c can range from 18 to 26 micrometers, generally determined by lifespan requirements and factory manufacturing capabilities. For example, the size of the light-emitting area of ​​the second color sub-pixel 200 in the second direction is 'b', the size of the light-emitting area of ​​the third color sub-pixel 300 in the first direction is 'd', and the size of the light-emitting area of ​​the first color sub-pixel 100 in the first direction is 'f'. b, d, and f are the sizes of the pixel openings 610 corresponding to each color sub-pixel. The higher the required lifespan of the sub-pixel, the larger the size of the pixel opening 610; for example, b < d < f. For example, the size of the light-emitting area of ​​the first color sub-pixel 100 in the second direction is 'e', ​​where e < f. For example, the distance between two adjacent first sub-light emission areas 101 of two first color sub-pixels 100 in two adjacent pixel units 10 is g, and g is not less than 6 micrometers.

[0103] For example, as shown in Figure 2, the distance between two adjacent first sub-light emission areas 101 of two first color sub-pixels 100 located in two adjacent pixel units 10 is less than the distance between the light emission areas of the first color sub-pixel 100 and the second color sub-pixel 200; such as g can be less than a, so as to improve the aperture ratio of the sub-pixel.

[0104] Figure 6 is a schematic diagram of another pixel arrangement according to an embodiment of the present disclosure. Figure 7 is a schematic diagram of the first electrode of a different color sub-pixel in a pixel unit of the pixel arrangement shown in Figure 6.

[0105] In some examples, as shown in Figures 6 and 7, at least one electrode block 411 includes a plurality of first sub-electrodes 110, and each first sub-electrode 110 corresponds to a first sub-light-emitting area 101 including a curved edge. For example, the shape of the first sub-light-emitting area 101 includes one of a circle, an ellipse, or a strip shape. Figure 6 schematically shows the shape of the first sub-light-emitting area 101 as a circle, but it is not limited to this and can also be other shapes.

[0106] For example, as shown in Figures 6 and 7, each electrode block 411 includes multiple first sub-electrodes 110 connected to each other. For example, the number of first sub-electrodes 110 included in each electrode block 411 can be the same. For example, the number of first sub-electrodes 110 can be determined according to the shape of the first sub-light-emitting area 101. For instance, when the shape of the first sub-light-emitting area 101 is set to a circle, the number of first sub-light-emitting areas 101 corresponding to each electrode block 411 is set according to the spacing limit between pixel openings 610 and the aperture ratio requirement of the first color sub-pixel 100. Figure 6 schematically shows one first sub-electrode 110 corresponding to one first sub-light-emitting area 101, but is not limited thereto; at least one electrode block 411 may include one first sub-electrode 110, which may correspond to multiple first sub-light-emitting areas 101.

[0107] In some examples, as shown in Figures 6 and 7, the luminous area of ​​at least one of the third color sub-pixel 300 and the second color sub-pixel 200 includes curved edges. For example, the shape of the luminous area of ​​at least one of the third color sub-pixel 300 and the second color sub-pixel 200 includes one of a circle and an ellipse. For example, the luminous areas of both the third color sub-pixel 300 and the second color sub-pixel 200 may be circular, or both may be elliptical, or one of the luminous areas of the third color sub-pixel 300 and the second color sub-pixel 200 may be circular and the other may be elliptical.

[0108] Figure 8 shows the stacking relationship of the multilayer films in the display panel shown in Figure 6. Figure 9 is a schematic diagram of a partial cross-sectional structure taken along line BB' shown in Figure 8.

[0109] In some examples, as shown in Figures 6 to 9, the display panel further includes a black matrix 700 and a color filter layer 800. The black matrix 700 is located on the side of the pixel-defined pattern 600 away from the substrate 01, and the color filter layer 800 is located on the side of the black matrix 700 away from the substrate 01. The black matrix 700 includes a plurality of black matrix openings 710, which are configured one-to-one with a plurality of pixel openings 610, and the plurality of black matrix openings 710 include a plurality of second openings 712, which are configured one-to-one with a plurality of first openings 611, and the plurality of second openings 712 are spaced apart.

[0110] In some examples, as shown in Figures 8 and 9, the color filter layer 800 includes a plurality of first color filters 810, a plurality of second color filters 820, and a plurality of third color filters 830, with the same first color filter 810 covering a plurality of first openings 611. For example, the first color filter 810 covers the light-emitting area of ​​the first color sub-pixel 100, the second color filter 820 covers the light-emitting area of ​​the second color sub-pixel 200, and the third color filter 830 covers the light-emitting area of ​​the third color sub-pixel 300.

[0111] For example, as shown in FIG9, the pixel defining portion surrounding the pixel opening 610 in the pixel defining pattern 600 can be made of a black light-absorbing material to reduce reflectivity. For example, the display panel also includes an encapsulation layer 03 located on the side of the second electrode 420 of the sub-pixel away from the substrate 01, and a color filter layer 800 is disposed on the encapsulation layer 03 to form a COE (Color filter on Encapsulation) structure. For example, other light-transmitting layers can be disposed between the color filter layer 800 and the black matrix 700.

[0112] The display panel disclosed herein, by setting a black matrix and a color filter layer, can replace a general polarizer, achieving a better anti-reflection effect while reducing the thickness of the display panel; and by designing the pixel opening with curved edges to match the opening of the black matrix and the shape of the color filter layer, it is beneficial to improve color uniformity and optimize the optical performance of the color filter.

[0113] For example, as shown in Figures 8 and 9, both the black matrix 700 and the color filter layer 800 can be made of acrylic material. For example, the orthographic projection of each black matrix opening 710 onto the substrate 01 surrounds the orthographic projection of a pixel opening 610 onto the substrate 01. For example, the shape of the black matrix opening 710 is similar to the shape of the pixel opening 610. For example, an annular gap is formed between the orthographic projections of the black matrix opening 710 and the pixel opening 610, and the annular gap width can be 3 to 5 micrometers. For example, the ratio of the annular gap width at different positions can be 0.9 to 1.1. For example, the annular gap width is equal at different positions.

[0114] For example, as shown in Figure 8, the shape of the light-emitting area of ​​the second color filter 820 is different from that of the second color sub-pixel 200, and the shape of the light-emitting area of ​​the third color filter 830 is different from that of the third color sub-pixel 300. Figure 8 schematically shows that the shape of each color filter can be polygonal, but is not limited to this, and the shape of each color filter can have a similar shape to the pixel opening 610 it covers.

[0115] For example, the display panel also includes a touch layer located between the color filter layer 800 and the substrate 01. However, it is not limited to this; the touch layer may also be located on the side of the color filter layer 800 away from the encapsulation layer.

[0116] Figure 10 is a diagram showing the stacking relationship of a multilayer film provided according to another example of an embodiment of the present disclosure.

[0117] The difference between the display panel shown in Figure 10 and the display panel shown in Figure 8 is that the shape of the light-emitting area of ​​the first color sub-pixel 100 is different, and the shape of the black matrix opening 710 corresponding to the light-emitting area is also different.

[0118] For example, as shown in FIG10, the shape of the plurality of first sub-light-emitting areas 101 included in the first color sub-pixel 100 may include an arc shape with the two ends connected. For example, the same group of first sub-light-emitting areas 101 may include two first sub-light-emitting areas 101. For example, the shape of the black matrix opening 710 is similar to the shape of the first sub-light-emitting area 101, and the orthographic projection of the black matrix 700 on the substrate 01 surrounds the orthographic projection of the first sub-light-emitting area 101 on the substrate 01.

[0119] The difference between the display panel shown in Figure 10 and the display panel shown in Figure 8 is that the shape of the second color film 820 is different, and the shape of the third color film 830 is also different.

[0120] For example, as shown in Figure 10, the shape of the second color filter 820 is similar to the shape of the light-emitting area of ​​the second color sub-pixel 200, and the shape of the third color filter 830 is similar to the shape of the light-emitting area of ​​the third color sub-pixel 300.

[0121] For example, as shown in Figure 10, the outline of the orthographic projection of the second color filter 820 onto the substrate 01 surrounds the outline of the orthographic projection of the pixel opening 610 corresponding to the second color sub-pixel 200 onto the substrate 01. For example, the ratio of the ring width of the two outlines at different positions can be 0.9 to 1.1. For example, the ring width of the two outlines at different positions is equal.

[0122] For example, as shown in Figure 10, the outline of the orthographic projection of the third color filter 830 onto the substrate 01 surrounds the outline of the orthographic projection of the pixel opening 610 corresponding to the third color sub-pixel 300 onto the substrate 01. For example, the ratio of the ring width of the two outlines at different positions can be 0.9 to 1.1. For example, the ring width of the two outlines at different positions is equal.

[0123] Figure 11 is a schematic diagram of another pixel arrangement provided according to an embodiment of the present disclosure.

[0124] The difference between the pixel arrangement shown in Figure 11 and the pixel arrangement shown in Figure 6 lies in the number and shape of the first luminous area of ​​the first color sub-pixel 100.

[0125] For example, as shown in Figure 11, each group of first sub-light-emitting areas 1010 includes two first sub-light-emitting areas 101. For example, the shape of each first sub-light-emitting area 101 can be elongated, and the elongated shape has curved edges.

[0126] For example, the shape of the light-emitting area of ​​the third color sub-pixel 300 shown in Figure 11 may be different from the shape of the light-emitting area of ​​the third color sub-pixel 300 shown in Figure 6. As shown in Figure 11, the outline of the light-emitting area of ​​the third color sub-pixel 300 may be formed by curved edges and straight edges.

[0127] Figure 12 is a schematic diagram of another pixel arrangement according to an embodiment of the present disclosure. Figure 13 is a schematic diagram of a mask opening forming the display panel shown in Figure 12.

[0128] In some examples, as shown in Figures 12 and 13, the two closest sub-pixels in two adjacent pixel units 10 arranged along the first direction are sub-pixels with the same color, and the light-emitting layers of the two sub-pixels are configured to be formed using the same mask opening.

[0129] By arranging the sub-pixels in two adjacent pixel units 10 arranged along the first direction, sub-pixels of the same color in adjacent pixel units 10 can share a mask opening, which is beneficial to further increase the aperture ratio.

[0130] For example, as shown in Figure 12, a plurality of pixel units 10 include a plurality of pixel unit rows arranged along a first direction, such as the X direction, and each pixel unit row includes a plurality of pixel units 10 arranged along a second direction, such as the Y direction. The light-emitting areas of sub-pixels in adjacent pixel unit rows are symmetrically distributed with respect to the axis of symmetry MA extending along the second direction, such as the light-emitting areas of sub-pixels in adjacent pixel unit rows being mirrored.

[0131] For example, as shown in Figures 12 and 13, the two closest sub-pixels in two adjacent pixel units 10 arranged along the first direction can be second color sub-pixels 200, and the two second color sub-pixels 200 share a mask opening 902. For example, the two closest sub-pixels in two adjacent pixel units 10 arranged along the first direction can be third color sub-pixels 300, and the two third color sub-pixels 300 share a mask opening 903.

[0132] For example, as shown in Figures 12 and 13, four pixel units 10 arranged in an array are adjacent to each other in an adjacent pixel unit row. The four first sub-light emission regions 101 in these four pixel units 10 share a mask opening 901.

[0133] Figure 14 is a schematic diagram of another pixel arrangement according to an embodiment of the present disclosure. Figure 15 is a schematic diagram of the first electrode of a different color sub-pixel in a pixel unit of the display panel shown in Figure 14.

[0134] In some examples, as shown in Figures 14 and 15, in at least one pixel unit 10, the light-emitting area of ​​at least one of the second color sub-pixel 200 and the third color sub-pixel 300 includes a plurality of second sub-light-emitting areas 201 spaced apart, and the first electrode 410 of at least one of the second color sub-pixel 200 and the third color sub-pixel 300 includes a plurality of second sub-electrodes 210 corresponding one-to-one with the plurality of second sub-light-emitting areas 201.

[0135] The display panel provided in this disclosure divides the first electrode 410 of the first color sub-pixel 100 in the same pixel unit 10 into multiple first sub-electrodes 110, and divides the first electrode 410 of at least one of the second color sub-pixel 200 and the third color sub-pixel 300 into multiple second sub-electrodes 210, which is beneficial to further reduce the probability of dark spot defects and improve the repair rate of bright spot defects.

[0136] For example, as shown in Figures 14 and 15, the area of ​​the first electrode 410 of the third color sub-pixel 300 is larger than the area of ​​the first electrode 410 of the second color sub-pixel 200. The first electrode 410 of the third color sub-pixel 300 includes a plurality of second sub-electrodes 210, and the plurality of second sub-electrodes 210 included in the first electrode 410 of the same third color sub-pixel 300 are electrically connected to each other. For example, the first electrode 410 of the same third color sub-pixel 300 is electrically connected to a pixel circuit.

[0137] By dividing the first electrode 410 in the third color sub-pixel 300, which has a larger area of ​​first electrode 410, into blocks, it is beneficial to reduce the probability of dark spot defects.

[0138] In some examples, as shown in Figures 14 and 15, in the same pixel unit 10, the light-emitting area of ​​one of the second color sub-pixel 200 and the third color sub-pixel 300 is located at least on one side of the light-emitting area of ​​the other in a first direction.

[0139] Figure 14 schematically shows that the third color sub-pixel 300 includes two second sub-light-emitting areas 201. Both second sub-light-emitting areas 201 are located on the same side of the light-emitting area of ​​the second color sub-pixel 200, and the light-emitting layers in the four second sub-light-emitting areas 201 of two adjacent pixel units 10 in the first direction share the same mask opening.

[0140] However, this is not the only example. In other examples, in the same pixel unit 10, the third color sub-pixel 300 may include multiple second sub-light-emitting areas 201 that are partially located on one side of the second color sub-pixel 200 and partially located on the other side of the second color sub-pixel 200, which helps to prevent color shift.

[0141] For example, as shown in Figure 14, the third color sub-pixel 300 includes a plurality of second sub-light-emitting regions 201 arranged along a first direction, but is not limited thereto; the plurality of second sub-light-emitting regions 201 may also be arranged along a second direction or other directions. The embodiments disclosed herein are not limited to the third color sub-pixel 300 including two second sub-light-emitting regions 201; the third color sub-pixel 300 may also include three or more second sub-light-emitting regions 201.

[0142] For example, as shown in Figure 14, in the same pixel unit 10, the distance between adjacent second sub-light-emitting areas 201 is less than the distance between the second sub-light-emitting area 201 and the light-emitting areas of other color sub-pixels. For example, the distance between two adjacent second sub-light-emitting areas 201 located in adjacent pixel units 10 is greater than the distance between two adjacent second sub-light-emitting areas 201 located in the same pixel unit 10.

[0143] Figure 14 schematically shows that only the light-emitting area of ​​the third color sub-pixel 300 includes multiple second sub-light-emitting areas 201, but it is not limited to this. Only the light-emitting area of ​​the second color sub-pixel 200 may include multiple second sub-light-emitting areas 201, or both the second color sub-pixel 200 and the third color sub-pixel 300 may include multiple second sub-light-emitting areas 201. For example, in the same pixel unit 10, only the light-emitting area of ​​the second color sub-pixel 200 includes multiple second sub-light-emitting areas 201, and these multiple second sub-light-emitting areas 201 may be located on the same side of the light-emitting area of ​​the third color sub-pixel 300, or on both sides of the light-emitting area of ​​the third color sub-pixel 300. For example, in the same pixel unit 10, both the second color sub-pixel 200 and the third color sub-pixel 300 include multiple second sub-light-emitting areas 201, and the multiple second sub-light-emitting areas 201 of the second color sub-pixel 200 may be located on the same side of the multiple second sub-light-emitting areas 201 of the third color sub-pixel 300.

[0144] Figure 14 schematically shows the mirror distribution of adjacent pixel units 10 in the first direction, but is not limited thereto. The pixel arrangement of different color sub-pixels shown in Figure 14 can adopt the same pixel arrangement as shown in Figure 2, such as the second color sub-pixel 200 and the third color sub-pixel 300 being arranged alternately in the first direction.

[0145] Figure 16 is a schematic diagram of another pixel arrangement provided according to an embodiment of the present disclosure.

[0146] In some examples, as shown in FIG16, a plurality of light-emitting areas of first color sub-pixels 100 located in different pixel units 10 are provided between two adjacent second color sub-pixels 200 in the second direction. The plurality of light-emitting areas include the light-emitting areas of the two first color sub-pixels 100, and the light-emitting area of ​​one of the two first color sub-pixels 100 is located between at least two of the plurality of first sub-light-emitting areas 101 of the other first color sub-pixel 100.

[0147] In some examples, as shown in Figure 16, in each pixel unit pair 0001, all first color sub-pixels 100 are disposed between the second color sub-pixels 200 of the first pixel unit 10 and the second color sub-pixels 200 of the second pixel unit 10, and between the third color sub-pixels 300 of the first pixel unit 10 and the third color sub-pixels 300 of the second pixel unit 10.

[0148] By setting the position of the light-emitting area in the first color sub-pixel 100 in adjacent pixel units 10, not only can the light-emitting layer in the light-emitting area of ​​the first color sub-pixel 100 in adjacent pixel units 10 be formed through the same mask opening, which is beneficial to improving the aperture ratio of each first color sub-pixel 100; it is also beneficial to release the gas in the organic layer between the first electrode 410 and the substrate 01, reducing the probability of dark spot defects.

[0149] In some examples, as shown in FIG16, the plurality of pixel units 10 includes a plurality of pixel unit pairs 0001 arranged in an array along a first direction and a second direction. Each pixel unit pair 0001 includes a first pixel unit 10-1 and a second pixel unit 10-2 arranged along the second direction. At least the first color sub-pixel 100 in the first pixel unit 10-1 includes a plurality of first sub-light-emitting areas 101. The plurality of first sub-light-emitting areas 101 are divided into a plurality of groups of first sub-light-emitting areas 101 arranged along the first direction. The light-emitting area of ​​the first color sub-pixel 100 in the second pixel unit 10-2 is disposed between two groups of first sub-light-emitting areas 101.

[0150] Figure 16 schematically shows that the number of first sub-light-emitting regions 101 in the same group is one, but it is not limited to this. The number of first sub-light-emitting regions 101 in the same group can be multiple, and the number of first sub-light-emitting regions 101 in different groups can be the same or different.

[0151] For example, as shown in Figure 16, the first color sub-pixel 100 in the first pixel unit 10-1 includes two sets of first sub-light-emitting areas 101, and the first color sub-pixel 100 in the second pixel unit 10-2 includes one light-emitting area, located between the two sets of first sub-light-emitting areas 101. For example, in the same pixel unit pair 0001, the first electrode 410 of the first color sub-pixel 100 in different pixel units 10 is electrically connected to different pixel circuits, and the first electrode 410 of the first color sub-pixel 100 in the same pixel unit 10 is electrically connected to the same pixel circuit.

[0152] Figure 16 schematically shows that the first color sub-pixel 100 in the first pixel unit 10 includes a plurality of first sub-light emission areas 101, but is not limited thereto.

[0153] For example, in other examples, the first color sub-pixel 100 in the second pixel unit 10 may also include a plurality of first sub-light-emitting areas 101. The plurality of first sub-light-emitting areas 101 may all be located between the two sets of first sub-light-emitting areas 101 of the first color sub-pixel 100 in the first pixel unit 10. For example, the plurality of first sub-light-emitting areas 101 in the second pixel unit 10 may be arranged along a first direction or a second direction. Alternatively, the first color sub-pixel 100 in the second pixel unit 10 may also include a plurality of first sub-light-emitting areas 101. The plurality of first sub-light-emitting areas 101 in the second pixel unit 10 and the plurality of first sub-light-emitting areas 101 in the first pixel unit 10 may be arranged alternately in the first direction. For example, both the first pixel unit 10 and the second pixel unit 10 include two first sub-light-emitting areas 101. A first sub-light-emitting area 101 of the second pixel unit 10 is disposed between the two first sub-light-emitting areas 101 of the first pixel unit 10, and a first sub-light-emitting area 101 of the first pixel unit 10 is disposed between the two first sub-light-emitting areas 101 of the second pixel unit 10. For example, the first pixel unit 10 includes multiple sets of first sub-light-emitting areas 101. In some of the first sub-light-emitting areas 101, a first sub-light-emitting area 101 of the second pixel unit 10 is provided between two adjacent sets. In other parts of the first sub-light-emitting areas 101, a first sub-light-emitting area 101 of the second pixel unit 10 is not provided between two adjacent sets.

[0154] Figure 16 schematically shows that the light-emitting areas of the second color sub-pixel 200 and the third color sub-pixel 300 are both light-emitting areas, but it is not limited to this.

[0155] For example, in other examples, the luminous region of at least one of the second color sub-pixel 200 and the third color sub-pixel 300 includes a plurality of second sub-luminous regions 201.

[0156] In some examples, as shown in Figure 16, the two closest sub-pixels in two pixel units 10 of two adjacent pixel units 0001 are sub-pixels with the same color, and the light-emitting layers of the two sub-pixels are configured to be formed using the same mask opening.

[0157] By setting the sub-pixels that are adjacent to each other in adjacent pixel units to have the same color, the light-emitting layers of sub-pixels of the same color in adjacent pixel units can share a mask opening, which is beneficial to improving the aperture ratio of sub-pixels.

[0158] For example, as shown in Figure 16, in adjacent pixel units 0001 arranged in the second direction, the light-emitting layers of two second color sub-pixels 200 can share a mask opening, and the light-emitting layers of two third color sub-pixels 300 can share a mask opening.

[0159] Figure 16 schematically shows a pair of pixel units 0001 arranged in the first direction, in which the second color sub-pixel 200 and the third color sub-pixel 300 are alternately arranged in the first direction, but is not limited thereto.

[0160] For example, in other examples, two adjacent sub-pixels in adjacent pixel unit pairs in the first direction are sub-pixels of the same color, such as two second color sub-pixels 200 or two third color sub-pixels 300, so that the light-emitting layers of the two second color sub-pixels 200 located in adjacent pixel unit pairs can be formed using the same mask, and the light-emitting layers of the two third color sub-pixels 300 can be formed using the same mask.

[0161] In some examples, as shown in FIG16, in at least some pixel units 10, the light-emitting area of ​​the first color sub-pixel 100 includes at least one first sub-light-emitting area 101; the plurality of pixel units 10 include a plurality of pixel unit pairs 0001 arranged in an array along a first direction and a second direction, and different pixel units 10 in the same pixel unit pair 0001 include different numbers of first sub-light-emitting areas 101. For example, when the number of light-emitting areas of the first color sub-pixel 100 is one, it can be regarded as including only one first sub-light-emitting area 101; when the number of light-emitting areas of the first color sub-pixel 100 is multiple, it can be regarded as including multiple first sub-light-emitting areas 101.

[0162] The number of first sub-light-emitting regions 101 included in the first color sub-pixels 100 in different pixel units 10 of the same pixel unit pair is different. This is beneficial to achieve the goal of preventing interference in the spatial arrangement of the film layer where the first electrode 410 is located, while also allowing the first electrode 410 to be designed in blocks as much as possible, thereby improving product yield.

[0163] For example, as shown in Figure 16, in the same pixel unit pair 0001, one pixel unit 10 has one first sub-light-emitting area 101, and the other pixel unit 10 has two first sub-light-emitting areas 101. However, it is not limited to this. For example, in the same pixel unit pair 0001, one pixel unit 10 may have two first sub-light-emitting areas 101, and the other pixel unit 10 may have four first sub-light-emitting areas 101, etc.

[0164] In some examples, as shown in Figure 16, the area ratio of the first sub-light-emitting region 101 included in different pixel units 10 within the same pixel unit pair is 0.9 to 1.1. For example, the area ratio of the first sub-light-emitting region 101 included in different pixel units 10 within the same pixel unit pair is the same.

[0165] In the same pixel unit pair, setting the area of ​​the first sub-light emission region 101 in different pixel units 10, which include different numbers of first sub-light emission regions 101, to be the same helps to avoid color shift.

[0166] For example, as shown in Figure 16, the ratio of the sum of the areas of the two first sub-light-emitting regions 101 in the first pixel unit 10-1 to the area of ​​one first sub-light-emitting region 101 in the second pixel unit 10-2 is 0.9 to 1.1.

[0167] Figure 17 is a schematic block diagram of a display device according to another embodiment of the present disclosure. As shown in Figure 17, a display device provided in an embodiment of the present disclosure includes any of the above-described display panels.

[0168] For example, the display device also includes a cover plate located on the light-emitting side of the display panel.

[0169] For example, the display device can be an organic light-emitting diode display device or other display device, as well as any product or component with display function, such as a television, digital camera, mobile phone, watch, tablet computer, laptop computer, or navigator that includes the display device. This embodiment is not limited to this.

[0170] The following points need to be explained:

[0171] (1) The accompanying drawings of the embodiments of this disclosure only involve the structures involved in the embodiments of this disclosure, and other structures can be referred to the general design.

[0172] (2) Where there is no conflict, features of the same embodiment and different embodiments of this disclosure may be combined with each other.

[0173] The above description is merely an exemplary embodiment of this disclosure and is not intended to limit the scope of protection of this disclosure, which is determined by the appended claims.

Claims

A display panel comprises: a substrate substrate; a plurality of pixel units on the substrate substrate, each pixel unit comprising a first color sub-pixel, a second color sub-pixel, and a third color sub-pixel, the second color sub-pixel and the third color sub-pixel each having a smaller light emitting area than the first color sub-pixel, each sub-pixel comprising a first electrode, a light emitting layer, and a second electrode stacked in sequence, the first electrode being between the light emitting layer and the substrate substrate, wherein in the same pixel unit, sub-pixels of the same color comprise a first electrode; in at least one pixel unit, the light emitting area of the first color sub-pixel comprises a plurality of first sub-light emitting areas arranged at intervals, and the first electrode of the first color sub-pixel comprises a plurality of first sub-electrodes arranged one-to-one corresponding to the plurality of first sub-light emitting areas. The display panel of claim 1, wherein, Two adjacent first sub-electrodes in the same first color sub-pixel are arranged with other color sub-pixels or other first color sub-pixels. The display panel according to claim 1 or 2, wherein, In the same pixel unit, the second color sub-pixel and the third color sub-pixel are arranged along a first direction, and the first color sub-pixel is located on at least one side of the second color sub-pixel in a second direction, the second direction intersecting the first direction; A plurality of light emitting areas of the first color sub-pixel in different pixel units are arranged between two adjacent second color sub-pixels in the second direction, and the light emitting layer in the plurality of light emitting areas is configured to be formed by using the same mask opening. The display panel according to claim 3, wherein, The plurality of light emitting areas comprise light emitting areas of two first color sub-pixels, and the light emitting area of one of the two first color sub-pixels is located between at least two of the plurality of first sub-light emitting areas of the other first color sub-pixel. The display panel according to claim 3, wherein, The plurality of light emitting areas comprise light emitting areas of two first color sub-pixels, and the light emitting areas of the two first color sub-pixels are arranged along the second direction. The display panel according to claim 3, wherein, In the same pixel unit, the plurality of first sub-light emitting areas comprise two groups of first sub-light emitting areas, and the two groups of first sub-light emitting areas are respectively located on both sides of the second color sub-pixel in the second direction. The display panel according to claim 6, wherein The two closest sub-pixels in adjacent pixel units arranged along the first direction are sub-pixels of the same color, and the light emitting layer of the two sub-pixels is configured to be formed by using the same mask opening. The display panel according to claim 3, wherein, The plurality of pixel units comprise a plurality of pixel unit pairs arranged in an array along the first direction and the second direction, each pixel unit pair comprising a first pixel unit and a second pixel unit arranged along the second direction, and the first color sub-pixel in at least the first pixel unit comprises the plurality of first sub-light emitting areas, the plurality of first sub-light emitting areas being divided into a plurality of groups of first sub-light emitting areas arranged along the first direction, and the light emitting area of the first color sub-pixel in the second pixel unit is arranged between two groups of first sub-light emitting areas in the plurality of groups of first sub-light emitting areas. The display panel according to claim 8, wherein, In each of the pixel unit pair, all the first color sub-pixels are arranged between the second color sub-pixels of the first pixel unit and the second pixel unit and between the third color sub-pixels of the first pixel unit and the second pixel unit. The display panel according to claim 9, wherein The two closest sub-pixels with the same color in the two pixel units of the two adjacent pixel unit pairs are formed by the same mask opening. The display panel according to claim 3, wherein, In at least one of the pixel units, the light-emitting area of the first color sub-pixel comprises at least one first sub-light-emitting area. The plurality of pixel units comprises a plurality of pixel unit pairs arranged in the first direction and the second direction, and the number of first sub-light-emitting areas included in different pixel units in the same pixel unit pair is different. The display panel according to claim 11, wherein, In the same pixel unit pair, the area ratio of the first sub-light-emitting areas included in different pixel units is 0.9-1.

1. The display panel according to claim 6 or 7, wherein In the same pixel unit, the first electrode of the first color sub-pixel comprises two electrode blocks corresponding to the two groups of first sub-light-emitting areas respectively, and a connecting electrode connecting the two electrode blocks, the connecting electrode is located on the side of the first electrode of the second color sub-pixel away from the first electrode of the third color sub-pixel or on the side of the first electrode of the third color sub-pixel away from the first electrode of the second color sub-pixel. The display panel according to claim 13, wherein In the same pixel unit, the first electrode of one of the second color sub-pixel and the third color sub-pixel and the connecting electrode overlap in the orthogonal projection on the plane extending in the first direction and perpendicular to the substrate. The display panel according to any one of claims 1-14, wherein In at least one of the pixel units, the light-emitting area of at least one of the second color sub-pixel and the third color sub-pixel comprises a plurality of second sub-light-emitting areas arranged at intervals, and the first electrode of at least one of the second color sub-pixel and the third color sub-pixel comprises a plurality of second sub-electrodes corresponding to the plurality of second sub-light-emitting areas one by one. The display panel of claim 15, wherein, In the same pixel unit, the second color sub-pixel and the third color sub-pixel are arranged in the first direction, and the light-emitting area of one of the second color sub-pixel and the third color sub-pixel is located on at least one side of the light-emitting area of the other in the first direction. The display panel according to claim 13 or 14, wherein At least one electrode block comprises at least one first sub-electrode. The display panel of claim 17, wherein, The at least one electrode block comprises a plurality of first sub-electrodes, and the first sub-light-emitting area corresponding to each first sub-electrode comprises a curved edge. The display panel of claim 18, wherein, The light-emitting area of at least one of the second color sub-pixel and the third color pixel comprises a curved edge. The display panel according to claim 19, further comprising: a pixel definition pattern on the substrate; a black matrix on the side of the pixel definition pattern away from the substrate; a color filter layer on the side of the black matrix away from the substrate, The pixel defining pattern includes a plurality of pixel openings to define light emitting areas of the first color sub-pixel, the second color sub-pixel and the third color sub-pixel, and the plurality of pixel openings includes a plurality of first openings arranged one by one with the plurality of first sub-light emitting areas. The black matrix includes a plurality of black matrix openings, the plurality of black matrix openings are arranged one by one with the plurality of pixel openings, and the plurality of black matrix openings includes a plurality of second openings arranged one by one with the plurality of first openings, and the plurality of second openings are arranged at intervals. The display panel of claim 20, wherein, The color filter layer includes a plurality of first color filters, a plurality of second color filters and a plurality of third color filters, and a same first color filter covers the plurality of first openings. A display device includes the display panel of any one of claims 1-21.

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