Display panel and display device

Abstract

The application discloses a display panel and a display device, and relates to the technical field of display, and comprises a first pixel row and a second pixel row which are arranged adjacently along a first direction, the first pixel row comprises a plurality of first color pixels arranged along a second direction, and the second pixel row comprises second color pixels and third color pixels arranged along the second direction; the display panel further comprises a plurality of data lines which extend along the first direction and are arranged along the second direction, and a plurality of pixel units which are arranged in an array along the first direction and the second direction; the same pixel unit comprises three pixels, the three pixels respectively comprise a first color pixel arranged in the first pixel row, and a second color pixel and a third color pixel arranged in the second pixel row adjacent to the first pixel row; in the same pixel unit, along the first direction, the same first color pixel at least partially overlaps with the second color pixel and the third color pixel respectively. In this way, the space utilization of the display panel is improved, and the display quality is improved.

Description

Technical Field

[0001] This invention relates to the field of display technology, and more specifically, to a display panel and a display device. Background Technology

[0002] Organic light-emitting diodes (OLEDs) are diodes that use organic semiconductor materials to achieve reversible color changes when driven by an electric current to create a display. The basic structure of an OLED display typically includes a hole transport layer, an emissive layer, and an electron transport layer. When a suitable voltage is supplied, holes from the anode and electrons from the cathode combine in the emissive layer, producing light. Compared to thin-film transistor liquid crystal displays (LCDs), OLED displays offer higher visibility and brightness, are more energy-efficient, lighter, and thinner; therefore, OLED displays are considered one of the most promising products of the 21st century.

[0003] Currently, OLED display technology primarily achieves color display through independent pixel emission of the three primary colors (RGB) in full-color technology. How to optimize pixel arrangement in display products to further improve display quality is one of the current research trends in the display field. Summary of the Invention

[0004] In view of this, the present invention provides a display panel and a display device, which aim to improve the space utilization of the display area in display products and improve display quality.

[0005] In a first aspect, the invention provides a display panel including a first pixel row and a second pixel row arranged adjacent to each other along a first direction, the first pixel row including a plurality of first color pixels arranged along a second direction, and the second pixel row including second color pixels and third color pixels arranged along the second direction, wherein the first direction and the second direction intersect.

[0006] The display panel further includes multiple data lines extending along the first direction and arranged along the second direction, and multiple pixel units arranged in an array along the first direction and the second direction; each pixel unit includes three pixels, each of which includes a first color pixel disposed in the first pixel row, and a second color pixel and a third color pixel disposed in the second pixel row adjacent to the first pixel row; in the same pixel unit, along the first direction, the same first color pixel at least partially overlaps with the second color pixel and the third color pixel.

[0007] In a second aspect, the present invention also provides a display device, including the display panel provided in the first aspect.

[0008] Compared with related technologies, the display panel and display device provided by the present invention achieve at least the following beneficial effects:

[0009] In the display panel and display device provided in this embodiment of the invention, three pixels in the same pixel unit are distributed in two pixel rows. A first color pixel in the same pixel unit is disposed in the first pixel row, and a second color pixel and a third color pixel are disposed in the second pixel row. The first pixel row and the second pixel row are arranged along a first direction, which is the same as the extension direction of the data lines in the display panel. Specifically, in the same pixel unit, along the first direction, the first color pixel located in the first pixel row at least partially overlaps with the second color pixel and the third color pixel located in the second pixel row. This arrangement makes the arrangement of the three pixels in the same pixel unit more compact. Compared with the arrangement of three pixels in the same column or row in the same pixel unit, this is beneficial for improving the aperture ratio and screen-to-body ratio of the display panel, thereby improving display quality.

[0010] Of course, any product implementing this invention does not necessarily need to achieve all of the technical effects described above at the same time.

[0011] Other features and advantages of the invention will become clear from the following detailed description of exemplary embodiments of the invention with reference to the accompanying drawings. Attached Figure Description

[0012] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the invention and, together with their description, serve to explain the principles of the invention.

[0013] Figure 1 The image shown is a schematic diagram of a pixel arrangement for a display panel provided in the related art;

[0014] Figure 2 The diagram shown is a structural schematic of a display panel provided in an embodiment of the present invention;

[0015] Figure 3 The diagram shown is a pixel arrangement schematic of a display panel provided in an embodiment of the present invention;

[0016] Figure 4 The diagram shown is a schematic representation of the arrangement of pixels within the same pixel unit in a display panel provided by an embodiment of the present invention.

[0017] Figure 5 The diagram shown is a pixel arrangement schematic of a display panel provided in an embodiment of the present invention;

[0018] Figure 6 The diagram shown is a schematic diagram of another pixel arrangement of the display panel provided in an embodiment of the present invention;

[0019] Figure 7 The diagram shown is a schematic diagram of another pixel arrangement of the display panel provided in an embodiment of the present invention;

[0020] Figure 8 The diagram shown is a schematic diagram of another pixel arrangement of the display panel provided in an embodiment of the present invention;

[0021] Figure 9 The diagram shown is a schematic diagram of another pixel arrangement of the display panel provided in an embodiment of the present invention;

[0022] Figure 10 The diagram shown is a schematic diagram of another pixel arrangement of the display panel provided in an embodiment of the present invention;

[0023] Figure 11 The diagram shown is a schematic diagram of another pixel arrangement of the display panel provided in an embodiment of the present invention;

[0024] Figure 12 The diagram shown is a schematic diagram of another pixel arrangement of the display panel provided in an embodiment of the present invention;

[0025] Figure 13 The diagram shown is a schematic diagram of another pixel arrangement of the display panel provided in an embodiment of the present invention;

[0026] Figure 14 The diagram shown is a schematic diagram of another pixel arrangement of the display panel provided in an embodiment of the present invention;

[0027] Figure 15 The image shown is a schematic diagram of a film layer of a display panel provided in an embodiment of the present invention;

[0028] Figure 16 The diagram shows a connection relationship between a pixel driving circuit and two sub-pixels within the same pixel.

[0029] Figure 17 The diagram shown is a schematic diagram of the connection of the anodes of two sub-pixels corresponding to a certain pixel in a display panel provided by an embodiment of the present invention;

[0030] Figure 18 The diagram shown is another connection diagram of the anodes of two sub-pixels corresponding to a certain pixel in the display panel provided by an embodiment of the present invention;

[0031] Figure 19 The diagram shown is a schematic diagram of another film layer of the display panel provided in an embodiment of the present invention;

[0032] Figure 20 The diagram shown is a structural schematic of a display device provided in an embodiment of the present invention. Detailed Implementation

[0033] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention.

[0034] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0035] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0036] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0037] Various modifications and variations can be made to this invention without departing from its spirit or scope, as will be apparent to those skilled in the art. Therefore, this invention is intended to cover modifications and variations falling within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the embodiments provided in this invention can be combined with each other without contradiction.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0039] Figure 1 The diagram illustrates a pixel arrangement of a display panel provided in related technologies. The display panel includes multiple pixel units P', each pixel unit P' comprising three pixels of different colors, with the three pixels in the same pixel unit P' located in the same pixel row. This pixel arrangement structure is simple in arrangement and manufacturing process. However, this type of display panel has a low aperture ratio, which prevents further improvement in screen-to-body ratio and display quality.

[0040] To address this, the present invention provides a display panel comprising a first pixel row and a second pixel row arranged adjacent to each other along a first direction. The first pixel row includes a plurality of first color pixels arranged along a second direction, and the second pixel row includes second color pixels and third color pixels arranged along the second direction. The first and second directions intersect. The display panel further includes a plurality of data lines extending along the first direction and arranged along the second direction, and a plurality of pixel units arranged in an array along the first and second directions. Each pixel unit includes three pixels, each of which includes a first color pixel disposed in the first pixel row, and a second color pixel and a third color pixel disposed in the second pixel row adjacent to the first pixel row. Within the same pixel unit, along the first direction, the same first color pixel at least partially overlaps with the second color pixel and the third color pixel. By changing the pixel arrangement structure, the aperture ratio of the display panel can be effectively increased, thereby improving the screen-to-body ratio and display quality of the display panel.

[0041] The above is the core idea of ​​this invention. The technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the embodiments of this invention.

[0042] Figure 2 The diagram shown is a structural schematic of a display panel provided in an embodiment of the present invention. Figure 3 The diagram shown is a pixel arrangement schematic of a display panel provided in an embodiment of the present invention. Please refer to it. Figure 2 and Figure 3 This invention provides a display panel 100, including a first pixel row H1 and a second pixel row H2 arranged adjacently along a first direction D1. The first pixel row H1 includes a plurality of first color pixels P1 arranged along a second direction D2, and the second pixel row H2 includes second color pixels P2 and third color pixels P3 arranged along a second direction D2. The first direction D1 and the second direction D2 intersect.

[0043] The display panel 100 also includes multiple data lines DL extending along a first direction D1 and arranged along a second direction D2, and multiple pixel units P arrayed along the first direction D1 and the second direction D2; each pixel unit P includes three pixels, each of which includes a first color pixel P1 disposed in a first pixel row H1, and a second color pixel P2 and a third color pixel P3 disposed in a second pixel row H2 adjacent to the first pixel row H1; in the same pixel unit P, along the first direction D1, the same first color pixel P1 at least partially overlaps with the second color pixel P2 and the third color pixel P3 respectively.

[0044] Specifically, the display panel 100 provided in this embodiment can be a display panel employing organic light-emitting diode (OLED) display technology. The pixel arrangement structure in the display panel provided in this embodiment has been improved; please refer to [reference needed]. Figure 3 Each pixel unit P includes at least three pixels of different colors: a first-color pixel P1, a second-color pixel P2, and a third-color pixel P3. The three pixels in the same pixel unit P are distributed across two pixel rows. The first-color pixel P1 is located in the first pixel row H1, and the second-color pixels P2 and P3 are located in the second pixel row H2. The first pixel row H1 and the second pixel row H2 are arranged along a first direction D1, which is the same as the extension direction of the data lines DL in the display panel. Specifically, in the same pixel unit P, along the first direction D1, the first-color pixel P1 located in the first pixel row H1 at least partially overlaps with the second-color pixels P2 and the third-color pixels P3 located in the second pixel row H2. This arrangement makes the arrangement of the three pixels in the same pixel unit P more compact. Compared to the arrangement of the three pixels in the same column or row, this is beneficial for increasing the aperture ratio and screen-to-body ratio of the display panel, thereby improving display quality.

[0045] It should be noted that, although Figure 2 The embodiment shows a relative positional relationship between the data line DL and the pixel in the pixel unit P. Along the direction perpendicular to the light-emitting surface of the display panel, the data line DL and the pixel in the pixel unit P at least partially overlap. However, from the perspective of the actual film structure, the data line DL is located on the side of the pixel away from the light-emitting surface of the display panel. Therefore, the data line DL will not block the opening of the pixel and will not affect the screen ratio of the display panel.

[0046] It should also be noted that in this embodiment... Figure 2 This illustration only demonstrates the structure of a display panel. In actual implementations, the structure of the display panel includes, but is not limited to, this. It may also include other structures, such as the film layer structure, pixel circuits, driving circuits, packaging structures, etc. This embodiment will not elaborate on these details; for specific understanding, please refer to the structure of organic light-emitting diode display panels in related technologies. Moreover, Figure 2 This embodiment is described using only a rectangular display panel as an example. In some other embodiments of the present invention, the shape of the display panel may also be other, such as a rounded rectangle, a circle, an ellipse, or any other feasible shape.

[0047] It should be further noted that the figures in this embodiment are merely illustrative depictions of the size and shape of pixel unit P and its three sub-pixels. In actual implementation, the size and shape of pixel unit P and its three sub-pixels include, but are not limited to, those shown in the figures. Figure 3 As shown, other sizes and shapes are also possible, but this embodiment does not limit them.

[0048] Figure 4 The diagram shown is a schematic representation of the pixel arrangement within the same pixel unit P in a display panel provided by an embodiment of the present invention. Please refer to it. Figure 4 In an optional embodiment of the present invention, the pixel aperture area of ​​the third color pixel P3 is larger than the pixel aperture area of ​​the first color pixel P1 and larger than the aperture area of ​​the second color pixel P2.

[0049] Specifically, please combine Figure 3 and Figure 4 For the three pixels contained in the same pixel unit P, the third color pixel P3 has the largest pixel aperture area, and the third color pixel P3 with the largest pixel aperture area is set in the second pixel row H2, that is, the third color pixel P3 is set in the same row as the second color pixel P2. Taking a rectangular pixel structure as an example, when the pixel aperture area of ​​the third color pixel P3 is the largest, the length of at least one of the long side or short side of its corresponding rectangle will be greater than the length of the long side or short side of the second color pixel P2 and the first color pixel P1. In other words, the area occupied by the third color pixel P3 will be the largest. When the third color sub-pixel is in a separate row, and the first color pixel P1 and the second color pixel P2 with smaller pixel aperture areas are set in the same row, the space occupied by the third color sub-pixel is large, while the row containing the first color pixel P1 and the second color pixel P2 has a lot of wasted space. Therefore, it is not conducive to the effective use of space in the display area, that is, it reduces the effective utilization rate of the display area space. In this embodiment, when the third color pixel P3 with the largest pixel aperture area and the second color pixel P2 with the smaller pixel aperture area are placed in the same row (corresponding to the second pixel row H2 in this embodiment), and the first color pixel P1 with the smaller pixel aperture area is placed in a separate row (corresponding to the first pixel row H1 in this embodiment), the space of the first pixel row H1 and the second pixel row H2 can be better utilized. This helps to avoid or reduce unnecessary waste of display area space, improve the space utilization rate of the display area, and at the same time help to ensure the pixel aperture ratio, thereby helping to improve the screen ratio of the display panel and improve the display quality.

[0050] In an optional embodiment of the present invention, the third color pixel P3 is a blue light-emitting pixel; the first color pixel P1 and the second color pixel P2 are either red light-emitting pixels or green light-emitting pixels, respectively.

[0051] Specifically, in display panels using organic light-emitting diode (OLED) display technology, due to the characteristics of the light-emitting materials, the blue light-emitting pixel has the shortest lifespan among red, green, and blue light-emitting pixels. This embodiment sets the third color pixel P3 as a blue light-emitting pixel; that is, it sets the pixel aperture area of ​​the blue light-emitting pixel with the shortest lifespan to the largest, while setting the second color pixel P2 and the first color pixel P1, with smaller pixel aperture areas, as red and green light-emitting pixels with longer lifespans, respectively. This helps to reduce the lifespan difference between the shorter-lived third color pixel P3 and the longer-lived first color pixel P1 and second color pixel P2 within the same pixel unit P, thereby improving the overall lifespan of the display panel.

[0052] Figure 5 The diagram shown is a pixel arrangement schematic of a display panel provided in an embodiment of the present invention. This embodiment is similar to... Figure 3 The difference in the illustrated embodiment lies in the different arrangement positions of the first pixel row H1 and the second pixel row H2.

[0053] In one optional embodiment of the present invention, please refer to Figure 3 Along the first direction D1, the first pixel row H1 and the second pixel row H2 are arranged alternately, with the first pixel row H1 located in odd-numbered rows and the second pixel row H2 located in even-numbered rows; or, please refer to Figure 5 The first pixel row H1 is located in an even-numbered row, and the second pixel row H2 is located in an odd-numbered row.

[0054] Specifically, in the display panel provided in this embodiment of the invention, the pixel row consisting of a single row of first color pixels P1 is the first pixel row H1, and the pixel row consisting of second color pixels P2 and third color pixels P3 is the second pixel row H2. When the first pixel row H1 and the second pixel row H2 are arranged along the first direction D1, that is, along the extension direction of the data line DL, the first pixel row H1 and the second pixel row H2 can be arranged alternately. Further, one arrangement is as follows: Figure 3 The arrangement shown places the first pixel row H1 in odd-numbered rows and the second pixel row H2 in even-numbered rows. Another arrangement is as follows: Figure 5 The arrangement shown places the first pixel row H1 in even-numbered rows and the second pixel row H2 in odd-numbered rows. Both arrangements place the third color pixel P3, with the larger pixel aperture area, in the second pixel row H2, and place the second color pixel P2, with the smaller pixel aperture area, in the same row as the third color pixel P3. The first color pixel P1, with the smaller pixel aperture area, is placed in a separate row. This arrangement effectively utilizes the display area space, allowing for a better increase in pixel aperture ratio, thus improving the screen-to-body ratio and ultimately enhancing the display quality.

[0055] Figure 6 The diagram shown is a schematic diagram of another pixel arrangement of the display panel provided in an embodiment of the present invention. This embodiment is similar to... Figure 3 The difference in the illustrated embodiment lies in the arrangement of the second color pixel P2 and the third color pixel P3 in the second pixel row H2.

[0056] In one optional embodiment of the present invention, please refer to Figure 3 In the second pixel row H2, the second-color pixel P2 and the third-color pixel P3 are arranged alternately along the second direction D2; or, please refer to Figure 6 Along the second direction D2, the second color pixel P2 and the third color pixel P3 in two adjacent pixel units P are arranged in a mirror image.

[0057] Specifically, Figure 3 In the pixel arrangement structure provided in the embodiment, two pixels of different colors in the second pixel row H2 are arranged alternately along the second direction D2. It should be noted that... Figure 3 This illustration only shows a configuration where, within the same second pixel row H2, the second color pixel P2 is located in an odd-numbered position and the third color pixel P3 is located in an even-numbered position. In some other embodiments of the invention, within the same second pixel row H2, the second color pixel P2 may also be located in an even-numbered position and the third color pixel P3 in an odd-numbered position. When the second color pixel P2 and the third color pixel P3 in the second pixel row H2 are arranged alternately, it is beneficial to simplify the pixel arrangement structure.

[0058] Figure 6 In the pixel arrangement structure provided by the illustrated embodiment, the second-color pixels P2 and third-color pixels P3 in the second pixel row H2 are not arranged alternately along the second direction D2, but rather symmetrically. That is, the pixels in two adjacent pixel units P along the second direction D2 are symmetrically distributed. Thus, in some two adjacent pixel units P along the second direction D2, the two third-color pixels P3 are adjacent; and in some two adjacent pixel units P along the second direction D2, the two second-color pixels P2 are adjacent. When two pixels of the same color in two adjacent pixel units P are adjacent, the light-emitting layer or cathode layer of the two adjacent pixels of the same color can share the same opening in the mask for vapor deposition, thereby simplifying the display panel manufacturing process.

[0059] Figure 7 and Figure 8 The following are schematic diagrams illustrating another pixel arrangement of the display panel provided in the embodiments of the present invention. Figure 7 and Figure 8 The difference in the embodiments lies in the arrangement of the second color pixel P2 and the third color pixel P3 in the second pixel row H2; Figure 9 and Figure 10The following are schematic diagrams illustrating another pixel arrangement of the display panel provided in the embodiments of the present invention. Figure 9 and Figure 10 The difference in the embodiments lies in the arrangement of the second color pixel P2 and the third color pixel P3 in the second pixel row H2; Figure 9 and Figure 10 ,and Figure 7 and Figure 8 The difference lies in the arrangement of the pixel rows within the same pixel row group Z0.

[0060] In an optional embodiment of the present invention, the first pixel row H1 and the second pixel row H2 form a plurality of pixel row groups Z0 arranged along the first direction D1, and each pixel group includes two first pixel rows H1 and two second pixel rows H2; in the same pixel row group Z0, along the first direction D1, the two first pixel rows H1 are located between the two second pixel rows H2; or, the two second pixel rows H2 are located between the two first pixel rows H1.

[0061] Specifically, please refer to Figures 7 to 10 In this embodiment, the pixel rows in the display panel are divided into multiple pixel row groups Z0, which are arranged along a first direction D1. Optionally, the multiple pixel row groups Z0 on the display panel are multiple repeating units arranged along the first direction D1. In this embodiment, each pixel row group Z0 includes four pixel rows, namely two first pixel rows H1 and two second pixel rows H2. One arrangement of the four pixel rows in the same pixel row group Z0 is as follows: along the first direction D1, such as... Figure 7 and Figure 8 The two first pixel rows H1 shown are located between the two second pixel rows H2. Thus, in two adjacent first pixel rows H1 along the first direction D1, the light-emitting layer or cathode layer of two adjacent first color pixels P1 along the first direction D1 can be vapor-deposited using the same pixel opening of the same mask, which helps to reduce the manufacturing process of the display panel. When the second color pixel P2 and the third color pixel P3 in the second pixel row H2 of pixel row group Z0 are used as follows... Figure 8 In the mirror arrangement structure shown, the light-emitting layer or cathode layer of adjacent second-color pixels P2 with the same color can also share the same opening of the same mask for vapor deposition, and the light-emitting layer or cathode layer of adjacent fixed third-color pixels P3 with the same color can also share the same opening of the same mask for vapor deposition, which helps to further simplify the manufacturing process of the display panel.

[0062] Another way to arrange four pixel rows in the same pixel row is along the first direction D1, such as... Figure 9 and Figure 10The two second pixel rows H2 shown are located between the two first pixel rows H1. Thus, in two adjacent second pixel rows H2 along the first direction D1, the light-emitting or cathode layers of the two adjacent second color pixels P2 along the first direction D1 can be deposited using the same pixel opening of the same mask, and the light-emitting or cathode layers of the two adjacent third color pixels P3 along the first direction D1 can be deposited using the same pixel opening of the same mask. This also simplifies the manufacturing process of the display panel. When the second color pixels P2 and third color pixels P3 in the second pixel rows H2 of pixel row group Z0 are deposited using the same method... Figure 10 In the mirrored arrangement structure shown, within the same pixel row group Z0, among the four pixel units P arranged along the first direction D1 and the second direction D2, there will be four adjacent pixels of the same color, for example... Figure 10 In the same pixel row group Z0, there are four third-color pixels P3 that are adjacent vertically and horizontally, and four second-color pixels P2 that are adjacent vertically and horizontally. In this way, the light-emitting layer or cathode layer of the four pixels with the same color that are adjacent vertically and horizontally can be vapor-deposited using the same opening of the same mask, which is more conducive to simplifying the manufacturing process of the display panel.

[0063] In an optional embodiment of the present invention, within the same pixel row group, please refer to... Figure 7 and Figure 9 In the second pixel row H2, the second-color pixel P2 and the third-color pixel P3 are arranged alternately along the second direction D2; or, please refer to Figure 8 and Figure 10 Along the second direction D2, the second color pixel P2 and the third color pixel P3 in two adjacent pixel units P are arranged in a mirror image.

[0064] Specifically, when the second-color pixel P2 and the third-color pixel P3 in the second pixel row H2 within the same pixel row group are alternately arranged along the second direction D2, it helps to simplify the overall pixel arrangement structure of the display panel. When the second-color pixel P2 and the third-color pixel P3 in the second pixel row H2 within the same pixel row group are arranged as follows... Figure 8 or Figure 10 In the mirror arrangement structure shown, the light-emitting layer or cathode layer of adjacent pixels of the same color in the same second pixel row H2 can be vapor-deposited using the same opening of the same mask. Therefore, while improving the screen ratio of the display panel, it also helps to simplify the manufacturing process of the display panel.

[0065] Figure 11 The diagram shown is a different pixel arrangement of the display panel provided in an embodiment of the present invention. In this embodiment, the specific colors of the first color pixel P1, the second color pixel P2 and the third color pixel P3 in the pixel unit P are defined.

[0066] Please refer to Figure 11 In an optional embodiment of the present invention, the first color sub-pixel is a red light-emitting pixel R, the second color pixel P2 is a green light-emitting pixel G, and the third color pixel P3 is a blue light-emitting pixel B; the pixel aperture area of ​​the first color pixel P1 is S1, the pixel aperture area of ​​the second color pixel P2 is S2, and the aperture area of ​​the third color pixel P3 is S3, wherein S2 = k1 * S1, S3 = k2 * S1, and 1 < k1 ≤ 2.5, 1 < k2 ≤ 4.

[0067] For display panels using organic light-emitting diode (OLED) technology, due to the inherent characteristics of the light-emitting materials, blue light-emitting pixels (B) have the shortest lifespan, red light-emitting pixels (R) have the longest lifespan, and green light-emitting pixels (G) have a moderate lifespan. In this embodiment, the third color pixel P3 with the largest pixel aperture area is selected as the blue light-emitting pixel B, the first color pixel P1 with the smallest pixel aperture area is selected as the red light-emitting pixel R, and the second color pixel P2 with a moderate pixel aperture area is selected as the green light-emitting pixel G. This can balance the lifespan differences of different color pixels to a certain extent and improve the overall lifespan of the display panel. Furthermore, this embodiment further limits the aperture area of ​​the second color pixel P2 to be larger than that of the first color pixel P1, but also smaller than or equal to 2.5 times the pixel aperture area of ​​the first color pixel P1. This balances the lifespan differences between the first color pixel P1 and the second color pixel P2 and avoids color shift caused by excessive size differences. Optionally, 1.5 ≤ K1 ≤ 2. Furthermore, setting the pixel aperture area of ​​the third color pixel P3 to be larger than that of the first color pixel P1, while also being less than or equal to four times the pixel aperture area of ​​the first color pixel P1, balances the lifespan difference between the first color pixel P1 and the third color pixel P3, and avoids color shift caused by excessive size difference between them. Optionally, 2.5 < K2 ≤ 4, so that the pixel aperture area of ​​the third color pixel P3 is maximized and the pixel aperture area of ​​the first color pixel P1 is minimized, and the difference in pixel aperture areas of the first color pixel P1, the second color pixel P2, and the third color pixel P3 is controlled within a certain range, thus balancing the lifespan difference among the three and effectively avoiding color shift.

[0068] Continue to refer to Figure 11 In an optional embodiment of the present invention, the pixel arrangement structure of the first color pixel P1 has a pixel opening length of D01 along the second direction D2 and a pixel opening length of D02 along the first direction D1, wherein 1 < D01 / D02 ≤ 3.

[0069] In this embodiment of the invention, when the first color pixel P1 with the smallest pixel aperture area is arranged in a separate row, and the second color pixel P2 with the middle pixel aperture area and the third color pixel P3 with the largest pixel aperture area are arranged together in a row, the first color pixel P1 is set as an elongated strip extending along the first direction D1, that is, its length D02 along the first direction D1 is greater than its length D01 along the second direction D2. If the first color pixel P1 is extended along the second direction D2, the overall size of a single pixel unit P along the second direction D2 will increase, and the space on both sides of the first color pixel P1 along the second direction D2 cannot be effectively utilized, reducing the space utilization rate of the display area. In this embodiment, since the second color pixel P2 and the third color pixel are arranged along the second direction D2, there is enough space above or below the first color pixel P1 and the third color pixel P3 along the second direction D2 to place the first color pixel P1. Therefore, when the long side of the first color pixel P1 is arranged in this embodiment along the second direction D2, it is beneficial to save the space of each pixel unit along the first direction D1, making the arrangement of the three pixels of a single pixel unit P more compact. More pixel units can be set in the unit area space of the display area, which is beneficial to improving the screen ratio of the display panel.

[0070] Furthermore, if the ratio of the length of the pixel opening of the first color pixel P1 along the second direction D2 to its length along the first direction D1 is set to be greater than 3, it may result in an excessively large aspect ratio of the first color pixel P1, increasing the difficulty of manufacturing the opening of the mask required for vapor deposition of the first color pixel P1. Therefore, setting the maximum aspect ratio of the first color pixel P1 to less than or equal to 3 can ensure the compactness of the pixel arrangement in a single pixel unit P, improve the screen ratio of the display panel, and also help reduce the manufacturing process of the display panel and improve the production efficiency of the display panel. Optionally, 1.5 < D01 / D02 ≤ 2, or 1.5 < D01 / D02 ≤ 2.5.

[0071] Continue to refer to Figure 11 In an optional embodiment of the present invention, the length of the pixel opening of the second color pixel P2 along the first direction D1 is L01, and the length of the pixel opening of the second color pixel P2 along the second direction D2 is L02, wherein 1 < L01 / L02 ≤ 3.

[0072] Continue to refer to Figure 11In this embodiment of the invention, the pixel arrangement structure is such that the first color pixel P1 with the smallest pixel aperture area is arranged in a separate row, while the second color pixel P2 with the middle pixel aperture area and the third color pixel P3 with the largest pixel aperture area are arranged in the same row. The second color pixel P2 is configured as an elongated strip extending along the second direction D2. Considering that the third color pixel P3 has the largest pixel aperture area, its dimensions along the first direction D1 and / or the second direction D2 are relatively large. Figure 11 The embodiment uses the example where the size of the third color pixel P3 along the first direction D1 is larger than its size along the second direction D2. When the size of the third color pixel P3 along the first direction D1 is larger, in the second pixel row H2, if the length of the second color pixel P2 along the first direction D1 is also larger than its length along the second direction D2, compared to the scheme where its length along the second direction D2 is larger, the space along the second direction D2 in the second pixel row H2 of the display panel can be utilized more reasonably, making the arrangement of the three pixels in a single pixel unit more compact. Therefore, it is beneficial to improve the overall screen ratio of the display panel and improve the display quality.

[0073] Furthermore, if the ratio of the length of the pixel opening of the second color pixel P2 along the first direction D1 to its length along the second direction D2 is set to be greater than 3, it may result in an excessively large aspect ratio of the second color pixel P2, increasing the difficulty of fabricating the opening of the mask required for vapor deposition of the second color pixel P2. Therefore, setting the maximum aspect ratio of the second color pixel P2 to less than or equal to 3 ensures both the compactness of the pixel arrangement in a single pixel unit P, improving the screen-to-body ratio of the display panel, and also helps to reduce the manufacturing process of the display panel and improve its production efficiency. Optionally, 1.5 < L01 / L02 ≤ 2, or 1.5 < L01 / L02 ≤ 2.5.

[0074] Figure 12 The diagram shown is another pixel arrangement of the display panel provided in the embodiment of the present invention. In this embodiment, at least one of the first color pixel P1, the second color pixel P2 and the third color pixel P3 is divided into at least two sub-pixels in the same pixel unit P.

[0075] Please refer to Figure 12 In an optional embodiment of the present invention, in the same pixel unit P, at least one of the first color pixel P1, the second color pixel P2 and the third color pixel P3 includes at least two sub-pixels of the same color.

[0076] For medium to large-sized display panels, the size of a single pixel in a pixel unit P is relatively large. When a single pixel emits light, there may be a phenomenon where the brightness of the center of the pixel is high and the brightness of the edge is low. In this embodiment, when a single pixel is divided into at least two sub-pixels, the difference between the brightness of the center of the pixel and the brightness of the edge can be reduced, so that the brightness of the center of the pixel and the brightness of the edge are consistent or tend to be consistent, which is beneficial to improving the overall display effect of the display panel.

[0077] It should be noted that, Figure 12 This invention only illustrates a scheme where all three pixels in the same pixel unit P are divided into at least two sub-pixels. In some other embodiments of the invention, only one or two pixels in the same pixel unit P may be divided. The invention does not specifically limit this to the above. For example, please refer to [reference needed]. Figure 13 , Figure 13 The diagram shows another pixel arrangement of the display panel provided in an embodiment of the present invention. When the pixel aperture area of ​​the third color pixel P3 is the largest, the difference between its center brightness and edge brightness may be more obvious. Therefore, the third color pixel P3 with the largest pixel aperture area can be preferentially divided into at least two sub-pixels to reduce the difference between its center and edge brightness. Optionally, when the third color pixel P3 is divided, the number of sub-pixels formed by dividing the same third color pixel P3 can be limited according to actual needs. For example, it can be divided into... Figure 12 The four shown, or broken down into, for example Figure 13 The two shown are not specifically limited in this invention.

[0078] Continue to refer to Figure 12 In an optional embodiment of the present invention, in the same pixel unit P, the third color pixel P3 includes at least four third color sub-pixels P03, and the third color sub-pixels P03 are arranged in an array along the first direction D1 and the second direction D2.

[0079] Specifically, Figure 12 The illustrated embodiment shows a scheme in which a third color pixel P3 with a large pixel aperture area is divided into four sub-pixels and arranged in a 2x2 matrix. This arrangement is equivalent to removing the part located at the geometric center of the third color pixel P3, thereby reducing the brightness of the central area of ​​the third color pixel P3 with a large pixel aperture area. Moreover, when using a 2x2 matrix arrangement, the four sub-pixels corresponding to the same third color pixel P3 are evenly distributed, thereby reducing the brightness difference between the center and the edge of the third color pixel P3 and further improving the overall display brightness uniformity of the third color pixel P3.

[0080] Continue to refer to Figure 12In an optional embodiment of the present invention, in the same pixel unit P, the first color pixel P1 includes two first color sub-pixels P01, and the second color pixel P2 includes two second color sub-pixels P02; in the same pixel unit P, the first color sub-pixels P01 in the first color pixel P1 are arranged along the second direction D2, and the second color sub-pixels P02 in the second color pixel P2 are arranged along the first direction D1.

[0081] In the same pixel unit P, since the third color pixel P3 has the largest pixel aperture area, while the first color pixel P1 and the second color pixel P2 have smaller aperture areas, when the third color pixel P3 is divided into four arrayed third color sub-pixels P03, in this embodiment, the first color pixel P1 and the second color pixel P2 are each divided into two sub-pixels. Moreover, the two first color sub-pixels P01 in the first color pixel P1 are arranged along the long side direction of the first color pixel P1, that is, along the second direction D2. In this way, the size of the first color pixel P1 along the first direction D1 will not increase. Even after the first color pixel P1 is divided, it will not exceed the space occupied by the pixel unit P when it is not divided. Therefore, while improving the uniformity of the display brightness of a single pixel, the aperture ratio of the display panel can also be guaranteed. Similarly, in this embodiment, the two second color sub-pixels P02 in the second color pixel P2 are arranged along the long side direction of the second color pixel P2, that is, along the first direction D1. This will not increase the size of the second color pixel P2 along the second direction D2. Even if the second color pixel P2 is split, it will not exceed the space occupied by the pixel unit P when it is not split. Therefore, while improving the uniformity of the display brightness of a single pixel, it is also beneficial to ensure the aperture ratio of the display panel.

[0082] It should be noted that in the display panel provided in the embodiments of the present invention, when a pixel of a certain color is split into at least two sub-pixels, all pixels of that color in each pixel unit P can be split, and the number of sub-pixels is the same, so as to improve the overall display uniformity of the display panel and improve the display quality.

[0083] It should also be noted that, Figure 12 and Figure 13 Only the scheme shown illustrates the alternating arrangement of the second and third pixels along the second direction D2 in the second pixel row H2. Please refer to [the original text]. Figure 14 For a scheme where two adjacent pixel units P along the second direction D2 are arranged in a mirror image, at least one of the first color pixel, the second color pixel, and the third color pixel can also be divided into at least two sub-pixels to improve the uniformity of display brightness of each pixel and enhance the overall display quality of the display panel. For example, please refer to... Figure 14 , Figure 14The diagram shown is a schematic diagram of another pixel arrangement of the display panel provided in an embodiment of the present invention.

[0084] Figure 15 The diagram shown is a schematic representation of a film layer in a display panel according to an embodiment of the present invention. This embodiment illustrates the connection relationship between the two sub-pixels and the pixel driving circuit when a pixel in pixel unit P is split into two sub-pixels of the same color. It is understood that... Figure 15 Only the driving transistor of the pixel driving circuit connected to the sub-pixel is shown. In addition to the driving transistor, the pixel driving circuit may also include other transistors and capacitors, etc. For example, please refer to [reference needed]. Figure 16 , Figure 16 The diagram shows a connection between a pixel driving circuit and two sub-pixels P01 within the same pixel. It should be noted that... Figure 16 The pixel driving circuit is illustrated only with a “7T1C” structure (7 transistors and 1 capacitor), and the actual structure of the pixel driving circuit is not limited. In other embodiments of the present invention, the pixel driving circuit may also be embodied in other structures such as “8T1C” or “8T2C”, or may be embodied in any other feasible pixel driving circuit.

[0085] Please refer to Figure 15 and Figure 16 In an optional embodiment of the present invention, the display panel includes multiple pixel driving circuits, and in the same pixel unit, sub-pixels with the same emission color are connected to the same pixel driving circuit.

[0086] Specifically, please combine Figures 12 to 16 In the display panel provided by this embodiment of the invention, when a pixel unit P includes three pixels, each of the three pixels corresponds to a pixel driving circuit, which drives the corresponding pixel to emit light. When a pixel is split into at least two sub-pixels of the same color, for example, when a first-color pixel P1 is split into two first-color sub-pixels P01, this embodiment does not increase the number of pixel driving circuits corresponding to the first-color pixel P1. Instead, the two split sub-pixels share the same pixel driving circuit, which drives the two sub-pixels to emit light. Even if the pixel is split, there is no need to change the original arrangement and structure of the pixel circuit. Therefore, while improving the overall display uniformity of the display panel, it does not increase the manufacturing difficulty of the display panel.

[0087] Please refer to Figure 15 In an optional embodiment of the present invention, each sub-pixel includes an anode 21, a light-emitting layer 22, and a cathode 23, wherein the anode 21 is electrically connected to the pixel driving circuit, and the cathode 23 is connected to a fixed voltage signal; in the same pixel unit P, the anodes 21 of sub-pixels with the same light-emitting color are electrically connected.

[0088] Optionally, the display panel provided in this embodiment of the invention includes a substrate 00, an array layer 10 disposed on the substrate 00, sub-pixels P01, P02, or P03 disposed on the side of the array layer opposite to the substrate 00, and an encapsulation layer 30 disposed on the side of the sub-pixels opposite to the substrate 00. Optionally, the sub-pixel includes an anode 21, a light-emitting layer 22, and a cathode 23. The anode is electrically connected to the pixel driving circuit and is used to receive the driving signal from the pixel driving circuit, while the cathode is connected to a fixed voltage signal. When a sub-pixel in the same pixel unit P is split into two or more sub-pixels of the same color, the anode 21 of the sub-pixels of the same color in the pixel unit P is electrically connected, and the anode is also electrically connected to the pixel driving circuit. This allows for the use of the same pixel driving circuit to drive two sub-pixels, eliminating the need for separate pixel driving circuits for each sub-pixel, thus simplifying the number of pixel driving circuits on the display panel and simplifying the structure.

[0089] Figure 17 and Figure 18 The present invention illustrates a connection diagram of the anodes of two sub-pixels corresponding to a certain pixel in a display panel, as provided in an embodiment of the invention, and is combined with... Figures 12 to 18 In an optional embodiment of the present invention, in the same pixel unit P, the anodes 21 of sub-pixels P01, P02, or P03 with the same emission color are electrically connected through a connecting part 50, and the connecting part 50 is disposed in the same layer as the anode 21.

[0090] Specifically, when a pixel in pixel unit P is split into two sub-pixels with the same emission color, the anodes 21 corresponding to the two sub-pixels can be electrically connected through the connecting part 50, and the connecting part 50 is disposed on the same layer as the anodes 21 corresponding to the sub-pixels. In this way, the anodes 21 of the sub-pixels and the corresponding connecting parts 50 can be manufactured in the same process using the same mask, without the need to introduce a separate manufacturing process for the connecting parts 50. Therefore, while realizing the electrical connection between the anodes 21 of the sub-pixels, it also helps to simplify the manufacturing process of the display panel and improve the production efficiency of the display panel.

[0091] It should be noted that, Figure 17 and Figure 18 Only the anode 21 of the sub-pixel and the corresponding connecting portion 50 are illustrated; the number and size of the connecting portions 50 between adjacent sub-pixels are not limited. It should also be noted that... Figure 17 and Figure 18 The diagram only illustrates the connection of the anodes 21 of two sub-pixels when the same pixel is split into two sub-pixels. When the same pixel is split into other numbers of sub-pixels, the connection between the anodes 21 of the corresponding sub-pixels can be referenced in the same way. Figure 17 or Figure 18The present invention does not specifically limit the solution shown.

[0092] Continue to refer to Figure 17 and Figure 18 In an optional embodiment of the present invention, a first gap 55 is included between the anodes 21 corresponding to the sub-pixels with the same emission color in the same pixel unit P.

[0093] It is understandable that since anode 21 is a conductive layer, if anode 21 overlaps with other conductive layers, a coupling capacitance will be formed between them. The larger the overlap area, the larger the coupling capacitance will be, and the greater the impact of the coupling capacitance on the signal of anode 21. In this embodiment, when a first gap 55 is set between anodes corresponding to sub-pixels of the same luminous color, it is equivalent to reducing the area of ​​anode 21 to a certain extent. Therefore, it is beneficial to reduce the overlap area between anode 21 and other conductive layers, thus reducing the coupling capacitance between anode 21 and other conductive layers. This avoids or reduces the impact of the coupling capacitance on the luminous emission of the pixels, thereby improving the overall luminous accuracy and reliability of the display panel.

[0094] Figure 19 The diagram shown illustrates another film layer of the display panel provided in an embodiment of the present invention. In an optional embodiment of the present invention, the light-emitting layers 22 of sub-pixels P01 or P02 of the same emission color in the same pixel unit P are interconnected. For example, assuming... Figure 19 When the sub-pixel shown is two first-color sub-pixels P01 split from the first-color pixel P1, it means that the light-emitting layer 22 of these two first-color sub-pixels P01 is electrically connected.

[0095] Specifically, when a pixel of a certain color in the same pixel unit P is divided into at least two sub-pixels, this embodiment limits the light-emitting layers 22 of the two sub-pixels to be connected. That is, the light-emitting layers 22 of two adjacent sub-pixels can share the same mask opening for vapor deposition. This is beneficial for increasing the size of the opening on the mask required for vapor deposition of the light-emitting layer 22, and for reducing the number of openings in the metal mask used in the vapor deposition process of the light-emitting layer 22. This avoids reducing the strength of the metal mask due to too many openings or too small openings, thereby improving the strength of the metal mask. It should be noted that the connection portion of the light-emitting layers 22 of two adjacent sub-pixels does not emit light because it does not contact the anode of the corresponding sub-pixel, and therefore will not affect the normal light emission of the two sub-pixels.

[0096] Based on the same inventive concept, the present invention also provides a display device. Figure 20 The diagram shown is a structural schematic of a display device provided in an embodiment of the present invention. Please refer to it. Figure 20The display device 200 includes the display panel provided in any of the above embodiments of the present invention.

[0097] It is understood that the display device 200 provided in the embodiments of the present invention can be other display devices with display functions, such as computers, televisions, and vehicle-mounted display devices, and the present invention does not impose specific limitations on them. The display device provided in the embodiments of the present invention has the beneficial effects of the display panel provided in the embodiments of the present invention. For details, please refer to the specific descriptions of the display panel in the above embodiments, which will not be repeated here.

[0098] In summary, the display panel and display device provided by the present invention achieve at least the following beneficial effects:

[0099] In the display panel and display device provided in this embodiment of the invention, three pixels in the same pixel unit are distributed in two pixel rows. A first color pixel in the same pixel unit is disposed in the first pixel row, and a second color pixel and a third color pixel are disposed in the second pixel row. The first pixel row and the second pixel row are arranged along a first direction, which is the same as the extension direction of the data lines in the display panel. Specifically, in the same pixel unit, along the first direction, the first color pixel located in the first pixel row at least partially overlaps with the second color pixel and the third color pixel located in the second pixel row. This arrangement makes the arrangement of the three pixels in the same pixel unit more compact. Compared with the arrangement of three pixels in the same column or row in the same pixel unit, this is beneficial for improving the aperture ratio and screen-to-body ratio of the display panel, thereby improving display quality.

[0100] While specific embodiments of the invention have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of the invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A display panel, characterized by, The display panel comprises a first pixel row and a second pixel row arranged adjacent along a first direction, the first pixel row comprises a plurality of first color pixels arranged along a second direction, the second pixel row comprises second color pixels and third color pixels arranged along the second direction, the first direction and the second direction intersect; the third color pixels are blue light-emitting pixels; the first color pixels and the second color pixels are one of red light-emitting pixels or green light-emitting pixels respectively; The display panel further comprises a plurality of data lines extending along the first direction and arranged along the second direction, and a plurality of pixel units arranged in an array along the first direction and the second direction; the same pixel unit comprises three pixels, the three pixels respectively comprise the first color pixels arranged in the first pixel row, and the second color pixels and the third color pixels arranged in the second pixel row adjacent to the first pixel row; in the same pixel unit, along the first direction, the same first color pixels at least partially overlap with the second color pixels and the third color pixels respectively; The pixel opening area of the third color pixels is greater than the pixel opening area of the first color pixels and greater than the second color pixel opening area; in the same pixel unit, the third color pixels comprise at least two third color sub-pixels of the same color; The display panel comprises a plurality of pixel driving circuits, in the same pixel unit, sub-pixels of the same light-emitting color are connected to the same pixel driving circuit; Each sub-pixel comprises an anode, a light-emitting layer and a cathode, wherein the anode is electrically connected to the pixel driving circuit, and the cathode is connected to a fixed voltage signal; In the same pixel unit, the anodes of sub-pixels of the same light-emitting color are electrically connected through a connection part, and the connection part is arranged in the same layer as the anodes; In the same pixel unit, the anodes of sub-pixels of the same light-emitting color correspond to a first gap between the anodes.

2. The display panel of claim 1, wherein, Along the first direction, the first pixel row and the second pixel row are arranged alternately, the first pixel row is located in an odd row, and the second pixel row is located in an even row; or, the first pixel row is located in an even row, and the second pixel row is located in an odd row.

3. The display panel of claim 2, wherein, The second color pixels and the third color pixels in the second pixel row are arranged alternately along the second direction; or, along the second direction, the second color pixels and the third color pixels in adjacent two pixel units are arranged in mirror image.

4. The display panel of claim 1, wherein, The first pixel row and the second pixel row form a plurality of pixel row groups arranged along the first direction, each pixel group comprises two first pixel rows and two second pixel rows; in the same pixel row group, along the first direction, two first pixel rows are located between two second pixel rows; or, two second pixel rows are located between two first pixel rows.

5. The display panel of claim 4, wherein, The second color pixel and the third color pixel in the second pixel row are arranged alternately along the second direction; or, along the second direction, the second color pixel and the third color pixel in two adjacent pixel units are arranged in mirror image.

6. The display panel of claim 1, wherein, The first color pixel is a red light-emitting pixel, the second color pixel is a green light-emitting pixel, and the third color pixel is a blue light-emitting pixel; a pixel opening area of the first color pixel is S1, a pixel opening area of the second color pixel is S2, and an opening area of the third color pixel is S3, wherein S2=k1*S1 and S3=k2*S1, and 1 7. The display panel of claim 6, wherein, A length of a pixel opening of the first color pixel along the second direction is D01, and a length of the pixel opening of the first color pixel along the first direction is D02, wherein 1 8. The display panel of claim 7, wherein, A length of a pixel opening of the second color pixel along the first direction is L01, and a length of the pixel opening of the second color pixel along the second direction is L02, wherein 1 9. The display panel of claim 1, wherein, In the same pixel unit, the third color pixel includes at least four third color sub-pixels, and the third color sub-pixels are arranged in an array along the first direction and the second direction.

10. The display panel of claim 1, wherein, In the same pixel unit, the first color pixel includes two first color sub-pixels, and the second color pixel includes two second color sub-pixels; in the same pixel unit, the first color sub-pixels in the first color pixel are arranged along the second direction, and the second color sub-pixels in the second color pixel are arranged along the first direction.

11. The display panel of claim 1, wherein, In the same pixel unit, the light-emitting layers of the sub-pixels of the same light-emitting color are connected to each other.

12. A display device comprising: The display panel of any one of claims 1 to 11.

Images