CN109427279B - Display panel and display device - Google Patents

Abstract

The invention provides a display panel and a display device, the display panel comprises a plurality of sub-pixels, each sub-pixel comprises a light-emitting unit and a drive switch electrically connected with a first electrode of the light-emitting unit, a plurality of light-emitting units in the plurality of sub-pixels form a pixel array, and the plurality of light emitting units on at least one pixel column in the pixel array correspond to sub-pixels of at least two colors, and a plurality of driving switches in the plurality of sub-pixels form a driving array, and a plurality of driving switches on the same column in the driving array are all connected with the light-emitting units of the same color, thereby further enabling the driving switches on the same column to be connected to the same data line so that the driving switches connected to the same data line correspond to the same color, therefore, the connection relation between the data line and the peripheral driving circuit can be simplified, and the structure of the peripheral driving circuit is further optimized.

Description

Display panel and display device

Technical Field

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

Background

In recent years, many types of display panels have been developed at home and abroad, such as liquid crystal display panels, plasma display panels, electrowetting display panels, electrophoretic display panels, organic light emitting display panels, and the like. In order to improve the pixel display resolution, a variety of pixel arrangement modes are provided.

In a conventional display panel, pixels are arranged in a regular pixel array sequentially along a row direction according to an RGB sequence, that is, a plurality of sub-pixels in a column direction of the pixel array all correspond to a same color. However, the display resolution of the pixel arrangement mode in which the plurality of sub-pixels in the column direction all correspond to the same color is increasingly unsatisfactory. Therefore, various non-RGB sequentially arranged pixel arrangement modes appear, and the irregular arrangement mode is favorable for improving the display resolution so as to have better display effect.

Although the display panel can improve the display resolution by adopting an irregular pixel arrangement mode, the pixel arrangement further causes that the drive switches on the columns in the drive array connected with the pixel array do not correspond to the same color, so that at least two data lines are required to be provided for each drive column. Therefore, in the peripheral driving circuit disposed on the non-display area of the display panel, since the number of the data lines is large, the structure of the peripheral driving circuit connected to the data lines is also complicated. For example, when the peripheral driving circuit is a panel test circuit (Cell Tset, CT circuit), there is a problem of black band mura when CT dot-screening is performed by using the CT circuit with a complicated structure.

Therefore, how to further optimize the peripheral driving circuit is important on the basis of ensuring the display effect of the display panel.

Disclosure of Invention

The present invention is directed to a display panel, so as to solve the problem of the conventional display panel that the structure of a peripheral driving circuit is complicated when the display resolution is improved.

In order to solve the above technical problem, the present invention provides a display panel, including a plurality of sub-pixels formed on a display area, each of the sub-pixels includes a light emitting unit and a driving switch, the light emitting unit includes a first electrode, the driving switch is electrically connected to the first electrode, the light emitting units in the sub-pixels form a pixel array, wherein the plurality of light emitting units on at least one pixel column in the pixel array correspond to sub-pixels of at least two colors; the plurality of driving switches in the plurality of sub-pixels form a driving array, and in the driving array, the plurality of driving switches on each driving column are electrically connected with the light-emitting units of the same color.

Optionally, the display panel further includes a peripheral driving circuit located in the non-display area, the peripheral driving circuit includes a source driving circuit, a plurality of driving switches in the same driving column are all connected to the same data line, and one data line is connected to the source driving circuit through one switching element.

Optionally, the source driving circuit includes a switching signal line and a data signal line, the data line is connected to the switching signal line and the data signal line through a switching element, and the switching signal line is configured to control conduction of the switching element, so that the data signal line provides a data signal for the driving switch of the corresponding color through the switching element; and the data signal lines respectively provide data signals for the driving switches corresponding to one of the colors, and the data lines corresponding to the same color are all connected to the same data signal line.

Optionally, the switching element is a transistor switch, a gate of the transistor switch is connected to the switching signal line, a source of the transistor switch is connected to the data signal line, and a drain of the transistor switch is connected to the data line.

Optionally, when three colors correspond to the plurality of sub-pixels, the source driving circuit includes three data signal lines, and the three data signal lines respectively provide data signals for the sub-pixels of the three colors; when the plurality of sub-pixels correspond to four colors, the source driving circuit comprises four data signal lines, and the four data signal lines respectively provide data signals for the sub-pixels of the four colors.

Optionally, each of the driving switches is electrically connected to the first electrode through a contact hole; the partial driving columns are arranged between two adjacent pixel columns, and the first electrodes of the light emitting units corresponding to the colors of the partial driving columns in the two adjacent pixel columns extend to the area between the two pixel columns so as to be connected with the contact holes of the corresponding driving switches.

Optionally, the driving switch includes a driving transistor and a switching transistor, a drain of the driving transistor is electrically connected to the first electrode through the contact hole, and a source of the switching transistor is electrically connected to a source of the driving transistor on the data line and a drain of the switching transistor.

Optionally, the plurality of sub-pixels form a plurality of pixel units arranged in an array, each pixel unit includes three sub-pixels respectively corresponding to different colors, and the light emitting units of the three sub-pixels in the pixel unit are respectively arranged on two adjacent columns in the pixel array; and the arrangement structure of each pixel unit after being turned by 180 degrees along the row direction is the same as the arrangement structure of the adjacent pixel units in the same column.

Based on the display panel, the invention also provides a display device which comprises the display panel.

In the display panel provided by the invention, the same color is not applied in the column direction of the pixel array, and compared with the traditional display panel in which the column directions correspond to the same color, the display panel provided by the invention can effectively improve the display resolution and the display uniformity. On the basis, the driving switches on the same column in the driving array are electrically connected with the light-emitting units with the same color, so that the driving switches on the same column can be further connected to the same data line, the driving switches with the same color are connected to the same data line, and therefore, the connection relationship between the data line and the peripheral driving circuit can be simplified, and the structure of the peripheral driving circuit can be correspondingly simplified. For example, each data line may be connected to the peripheral driving circuit through only one switching element, in the peripheral driving circuit, only one switching signal line may be provided and matched with the data signal line corresponding to the color of the sub-pixel, so that all the data lines may be connected to the switching signal line, and the data lines corresponding to the color may be connected to the data signal lines corresponding thereto, which is beneficial to reducing the number of lines in the peripheral driving circuit. The peripheral driving circuit may be, for example, a panel test circuit.

Drawings

FIG. 1 is a schematic diagram of a display panel with a display area;

FIG. 2 is a schematic diagram of the connection between the driving array and the peripheral driving circuit in the display panel shown in FIG. 1;

FIG. 3 is a schematic structural diagram of a display area of a display panel according to a first embodiment of the present invention;

FIG. 4 is a schematic diagram illustrating a connection between a driving array and a peripheral driving circuit of a display panel according to a first embodiment of the present invention;

FIG. 5 is a schematic diagram of a pixel array of a display panel according to a first embodiment of the invention;

fig. 6 is a schematic diagram illustrating a connection between a driving array and a peripheral driving circuit of a display panel according to a second embodiment of the invention.

Detailed Description

As described in the background art, in order to achieve high display resolution of a display panel, a regular pixel arrangement manner in which pixels are not arranged in RGB sequentially is usually adopted, so that at least two colors can be provided in a row direction of a pixel array, and for the irregular pixel arrangement manner, a driving switch thereof is also not arranged according to an RGB sequence rule, which not only makes an electrical connection relationship between the driving switch and a light emitting unit more complex, but also further complicates a peripheral driving circuit.

For example, fig. 1 is a schematic structural diagram of a display area of a display panel, as shown in fig. 1, the display panel includes a plurality of sub-pixels formed on the display area of a substrate, and at least three colors are corresponding to the plurality of sub-pixels. It should be noted that fig. 1 only schematically shows 6 sub-pixels 100, and the plurality of sub-pixels 100 in fig. 1 correspond to three colors, for example, blue B, red R and green G. Each sub-pixel 100 includes a light emitting unit 110 including a first electrode 111 and a driving switch 120 electrically connected to the first electrode 111.

The light emitting units 110 in the sub-pixels 100 form a pixel array, and the light emitting units 110 in the column direction of the pixel array correspond to at least two colors. In the pixel array of fig. 1, the light emitting units 110 on the first column correspond to blue B, red R, and green G in sequence, and the light emitting units 110 on the second column correspond to red R, green G, and blue B in sequence. With continued reference to fig. 1, the plurality of driving switches 120 of the plurality of sub-pixels 100 form a driving array in which the driving switches 120 on the first column correspond to blue B and red R in sequence, the driving switches 120 on the second column correspond to red R and green G in sequence, and the driving switches 120 on the third column correspond to green G and blue B in sequence. That is, in the driving array, 2 driving switches 120 on each column are respectively used to electrically connect to the light emitting units 110 of 2 different colors. As can be seen, for a pixel array in which the pixels are not arranged in sequence of RGB, the plurality of driving switches arranged in the column direction of the driving array corresponding to the pixel array do not correspond to the same color.

Fig. 2 is a schematic diagram illustrating connection between a driving array and a peripheral driving circuit, such as a Cell Test (CT) circuit, in the display panel shown in fig. 1. Referring to fig. 2, in the driving array 12, the driving switches 120 in the same column do not correspond to the same color, so that the driving switches 120 in the same driving column need to be provided with corresponding data signals according to different colors, i.e., a plurality of switching elements P are correspondingly arranged according to a plurality of colors in the same driving column to be connected to the peripheral driving circuit. Correspondingly, the peripheral driving circuit also needs to provide corresponding switch signal lines for a plurality of switch elements P corresponding to different colors, so as to control the on or off of the corresponding switch elements P through different switch signal lines, and further provide data signals for the sub-pixels of different colors through different switch elements P. Since the plurality of driving switches 120 on each driving column correspond to at least two different colors, at least two switching elements P should be correspondingly disposed on each driving column, and a large number of switching signal lines should be disposed to control the switching elements P corresponding to different colors on different driving columns, respectively, so that the structure of the adopted peripheral driving circuit is also correspondingly complicated. For example, as shown in fig. 2, the driving switches 120 in the first row correspond to blue B and red R, so two switching elements P are provided and connected to the switching signal line SW1 and the switching signal line SW2, respectively, and similarly, two switching elements P are also provided in the second driving row, two switching elements P are provided in the switching signal line SW3 and the switching signal line SW4, respectively, and two switching elements P are also provided in the third driving row, and the switching signal line SW5 and the switching signal line SW6, respectively.

As can be seen from fig. 1 and fig. 2, when irregular pixel arrangement is used, a plurality of light emitting units in a column direction in a pixel array can correspond to at least two colors, which is beneficial to improving the resolution and display uniformity of a display panel, however, the connection between the light emitting units in the sub-pixels and the driving switches is also complicated, and further, the structure of the peripheral driving circuit is complicated.

To this end, the present invention provides a display panel, comprising a plurality of sub-pixels formed in a display area, each of the sub-pixels comprising a light emitting unit and a driving switch, the light emitting unit comprising a first electrode, the driving switch being electrically connected to the first electrode, the light emitting units in the plurality of sub-pixels forming a pixel array, wherein the plurality of light emitting units in at least one pixel column correspond to sub-pixels of at least two colors; the plurality of driving switches in the plurality of sub-pixels form a driving array, and in the driving array, the plurality of driving switches on each driving column are electrically connected with the light-emitting units of the same color.

That is, the display panel provided by the invention still adopts an irregular pixel arrangement mode, so that a plurality of light-emitting units of the display panel do not correspond to the same color in the column direction, thereby ensuring the high resolution and the display uniformity of the display panel. On the basis, a plurality of driving switches in the row direction of the driving array are electrically connected with the light-emitting units with the same color, and when the plurality of driving switches in the same row can be connected to the same data line, the data line corresponding to each driving row is connected with the driving switches with the same color, so that the connection relationship between the data line and the peripheral driving circuit is simplified, and the peripheral driving circuit can be further simplified. The peripheral driving circuit is, for example, a source driving circuit or a panel testing circuit. Therefore, the peripheral driving circuit can be simplified on the basis of irregular arrangement of pixels, and for various display panels with irregular pixel arrangement, the arrangement mode of the driving array or the connection mode between the driving switch and the light-emitting unit can be correspondingly adjusted according to the core idea of the invention so as to achieve the purpose of simplifying the peripheral driving circuit.

The display panel and the display device according to the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.

Fig. 3 is a schematic structural diagram of a display panel according to an embodiment of the invention, as shown in fig. 3, the display panel includes a plurality of sub-pixels 200 formed on a display area, and at least three colors, such as red R, blue B, and green G, are corresponding to the plurality of sub-pixels 200. In the present embodiment, three colors are illustrated as an example in the plurality of sub-pixels 200, and of course, in order to further improve the display effect of the display panel, four colors, such as red, green, blue and white, or red, green, blue and yellow, may be associated with the plurality of sub-pixels. And, only 6 of the sub-pixels 200 are schematically shown in fig. 3. The sub-pixel 200 has a light emitting unit 210 and a driving switch 220, the light emitting unit 210 includes a first electrode 211, and the driving switch 220 is electrically connected to the first electrode 211. Further, the light emitting unit 210 further includes a second electrode (not shown), and a light emitting layer (not shown) between the first electrode 211 and the second electrode, wherein the first electrode 211 may constitute an anode and the second electrode may constitute a cathode. In addition, the driving switch 220 includes a driving transistor, and a drain of the driving transistor is electrically connected to the first electrode 211.

The light emitting units 210 of the sub-pixels 200 form a pixel array, the light emitting units 210 on the same column form a pixel column, and the light emitting units on at least one pixel column in the pixel array correspond to sub-pixels of at least two colors, that is, the light emitting units 210 in the column direction in the pixel array correspond to pixel columns of at least two colors. For example, in the pixel array, the plurality of light emitting units on a part of the pixel columns correspond to at least two colors, and the plurality of light emitting units on another part of the pixel columns correspond to only one color; of course, at least two colors may be associated with the light emitting units 210 in each pixel column in the pixel array.

And, the plurality of driving switches 220 of the plurality of sub-pixels 200 form a driving array, the plurality of driving switches 220 on the same column form a driving column, and in the driving array, the plurality of driving switches 220 on each driving column are electrically connected to the light emitting units 210 of the same color.

That is, by adopting an irregular pixel arrangement manner, a plurality of light emitting units 210 in the row direction in the pixel array do not correspond to the same color, so that the display resolution of the display panel can be effectively improved, on this basis, a plurality of driving switches 220 on each row in the driving array all correspond to the same color, so that the driving switches on the same row can all be connected to the same data line, i.e., a plurality of driving switches connected on the data line all correspond to the same color, thereby being beneficial to simplifying the connection manner of the driving switch and a peripheral driving circuit, and optimizing the structure of the peripheral driving circuit. For example, each data line may be connected to the peripheral driving circuit through only one switching element, and only one switching signal line may be disposed in the peripheral driving circuit, and all the data lines may be connected to the same switching signal line, thereby greatly reducing the number of switching signal lines in the peripheral driving circuit. It should be noted that "column" herein is not a column in a predetermined spatial sense, and may be referred to as "row" in different angular directions, and similarly, "row" herein may be referred to as "column" in different angular directions.

The following is an explanation of a specific pixel arrangement. Fig. 4 is a schematic diagram illustrating a connection between a driving array and a peripheral driving circuit of a display panel according to a first embodiment of the invention, and fig. 5 is a schematic diagram illustrating a pixel array of the display panel according to the first embodiment of the invention. In this embodiment, only the pixel arrays shown in fig. 3 and 5 are taken as examples, however, it should be appreciated that the arrangement of the driving arrays can be adjusted according to the core idea of the present invention as long as the plurality of light emitting units in the column direction of the pixel array do not correspond to the same color.

As shown in fig. 3 and 5, in the pixel array 21, there are a plurality of light emitting units 210 corresponding to at least two color pixel columns in the column direction. For example, in the present embodiment, the light emitting units 210 on each pixel column at least correspond to two colors, such as red R, green G, and blue B in the column direction of the pixel array 21 in fig. 5.

As shown in fig. 3 and 4, the plurality of driving switches 220 in the column direction of the driving array 22 are electrically connected to the light emitting units 210 of the same color, and the plurality of driving switches 220 in the same column are connected to the same data line. For example, in the 3 columns of driving columns shown in fig. 4, the same color is assigned to the same driving column, and 3 data lines are assigned to the 3 columns of driving columns, respectively.

In this embodiment, each pixel case corresponds to at least two colors, so that the plurality of driving switches on each driving column are connected to the light emitting units of the same color by adjusting the arrangement of the driving switches on the basis of ensuring the display effect of the display panel. However, it should be appreciated that, in the embodiment, when at least two colors are corresponded on a part of pixel columns and only one color is corresponded on another part of pixel columns in the pixel array, the core idea of the present invention can still be adopted to further simplify the connection manner of the data lines and the peripheral driving circuit and optimize the structure of the peripheral driving circuit. For example, in other embodiments, a part of the pixel columns corresponds to a red light-emitting unit and a blue light-emitting unit, and another part of the pixel columns corresponds to a green light-emitting unit only, at this time, the driving switches electrically connected to the green light-emitting units can be maintained to be repeatedly arranged in the column direction alone, and further can be directly connected to the same data line, and only the arrangement manner of the red driving switches and the green driving switches needs to be adjusted, that is, the red driving switches are repeatedly arranged in the column direction alone, and the blue driving switches are also repeatedly arranged in the column direction alone. Therefore, each driving column corresponds to the same color, namely, the data lines connected with each driving column are also connected with the driving switches of the same color, so that the connection relation between the data lines and the peripheral driving circuit can be effectively simplified.

With continued reference to fig. 4, the peripheral driving circuit of the display panel is located on the non-display area, and the peripheral driving circuit includes a source driving circuit, and the data lines connected to the driving array 22 are connected to the source driving circuit. The peripheral driving circuit further includes a gate driving circuit connected to the gate lines in the display panel for providing gate driving signals, wherein in the driving array 22, the plurality of driving switches 220 on the same row are connected to the same gate line. Only 4 rows by 3 columns of driving switches 220 are shown in fig. 4, and there are 4 gate lines correspondingly, and the driving switches 220 in each column correspond to the same color, so all the driving switches 220 in each column can be connected to one data line, and thus 3 data lines are led out correspondingly in fig. 4. In addition, in this embodiment, the driving switch 220 further includes a switching transistor and a driving transistor, a source of the switching transistor is connected to the data, a gate of the switching transistor is connected to the gate line, and a source of the driving transistor is electrically connected to a drain of the switching transistor.

Specifically, the source driving circuit includes a switching signal line and a data signal line, wherein the data line is connected to the switching signal line and a corresponding data signal line through a switching element P, and the switching signal line is used to control the conduction of the switching element P, so that the data signal line provides a data signal for the driving switch 220 of a corresponding color through the switching element P. Since each data line is connected to a driving switch corresponding to the same color, only one switching signal line SW1 needs to be provided in the source driving circuit, and all the data lines can be connected to the same switching signal line SW1 through the switching element P. In addition, the data signal lines respectively provide data signals for the driving switches 220 corresponding to one of the colors, and the data lines corresponding to the same color are all connected to the same data signal line. For example, when three colors correspond to each of the plurality of sub-pixels, the source driving circuit may be provided with three data signal lines (D1 '/D2 '/D3 ') for respectively supplying data signals to the three color sub-pixels; or, when four colors correspond to the plurality of sub-pixels, four data signal lines may be disposed in the source driving circuit, and the four data signal lines respectively provide data signals for the sub-pixels of the four colors. Further, the switching element P is a transistor switch, and a gate of the transistor switch is connected to the switching signal line.

Referring to fig. 4, 3 data lines of the 4 rows by 3 columns driving switches 220 may all be connected to the same switch signal line SW1 ', and of the 3 data lines, data line D1' may provide data signals for the green sub-pixels, data line D2 'may provide data signals for the red sub-pixels, and data line D3' may provide data signals for the blue sub-pixels. Accordingly, the data line S1 of the driving switch 220 connected to green G is connected to the switching signal line SW1 'and the data line D1' through one switching element P, the data line S2 of the driving switch 220 connected to red R is connected to the switching signal line SW1 'and the data line D2' through one switching element P, and the data line S3 of the driving switch 220 connected to blue is connected to the switching signal line SW1 'and the data line D3' through one switching element P.

With continued reference to fig. 3, each of the driving switches 220 is electrically connected to the first electrode 211 through a contact hole 230. Specifically, the first electrode 211 is connected to the drain electrode of the driving switch 220 through the contact hole 230. It can be seen that the layout of the light emitting units 210 and the driving switch 220 directly affects the layout structure of the first electrode 211, and specifically, the relative position between the drain of the driving switch 220 and the corresponding light emitting unit 210 partially defines the layout structure of the first electrode 211.

For example, in the layout structure of the first electrode layer 111 shown in fig. 1, 6 sub-pixels are schematically shown. Here, in the first sub-pixel 100a, the second sub-pixel 100b, the fourth sub-pixel 100d and the sixth sub-pixel 100f, the contact hole 130 corresponding to the drain of the driving switch 120 is located at one side of the corresponding light emitting unit 110, and at this time, the first electrode 111 extends from the light emitting unit 110 to the position of the contact hole 130 at the side thereof, so as to electrically connect the first electrode 111 and the contact hole 130. However, in the third sub-pixel 100c and the fifth sub-pixel 100e, each driving switch 120 is not located at one side of the corresponding light emitting unit 110, but is further arranged at the side of the light emitting units of the other sub-pixels, so that the first electrode 111 needs to extend along the edge of the light emitting units of the other sub-pixels to be connected with the corresponding contact hole; for example, in the third sub-pixel 100c, the first electrode 111 of the third sub-pixel needs to be along the edges of the light emitting unit of the second sub-pixel 100b and the light emitting unit of the sixth sub-pixel 100f and to bypass the light emitting unit of the sixth sub-pixel 100f, so as to be connected to the corresponding contact hole 130.

It can be seen that according to the arrangement of the light emitting unit 110 and the driving switch 120 in fig. 1, when the first electrode 111 in the light emitting unit 110 is electrically connected to the corresponding contact hole 130 of the driving switch 120, the layout structure of the first electrode 130 is complicated, and the area of the first electrode 111 is also large. In this embodiment, on the basis of not changing the arrangement of the light emitting units shown in fig. 1, the arrangement position of the driving switch relative to the light emitting units, or the connection manner between the drain of the driving switch and the first electrode, may be adjusted, so as to achieve the purpose of simplifying the layout structure of the first electrode.

With reference to fig. 3, in the present embodiment, a part of the driving columns in the driving array 22 is arranged between two adjacent pixel columns, so that the first electrodes 211 of the light emitting units corresponding to the color of the part of the driving columns in the two adjacent pixel columns only need to extend to the area between the two pixel columns, and the purpose of connecting the first electrodes 211 with the contact holes 230 of the corresponding driving switches can be achieved. The driving switch 220 includes a driving transistor, and the contact hole 230 connects the drain electrode of the driving transistor and the first electrode 230. Therefore, it can be understood that the position of the square opening shown in fig. 3 corresponds to the position of the drain of the driving transistor in the driving switch 220.

Referring to the 6 sub-pixels 200 shown in fig. 3, the driving column corresponding to green G and the driving column corresponding to red R are respectively disposed between different adjacent two pixel columns, so that the space between the adjacent two pixel columns can be effectively utilized, that is, in two adjacent pixel columns (here, two adjacent pixel columns are two pixel columns on both sides of the green driving column), the first electrode 211 of the light emitting unit 210 corresponding to green G only needs to extend to the region between the two pixel columns, and in two adjacent pixel columns (here, two adjacent pixel columns are two pixel columns on both sides of the red driving column), the first electrode 211 of the light emitting unit 210 corresponding to the red color R also only needs to extend to the region between the two pixel columns, and does not need to extend further along the edges of other light emitting units. It can be seen that, the arrangement of the driving switch 220 further reduces the area of the first electrode 211 on the basis of satisfying the array arrangement of the driving switch, and accordingly simplifies the layout structure of the first electrode 211, so that the connection between the driving switch 220 and the first electrode 211 of the light emitting unit 210 is simpler.

The following description will focus on the pixel array 21 in this embodiment with reference to fig. 3 and 5. In the column direction of the pixel array 21, the plurality of light emitting units 210 do not correspond to the same color, in this embodiment, the pixel array 21 corresponds to three colors in the column direction, that is, blue B, red R and green G, the light emitting units 210 corresponding to the three colors are sequentially arranged, and the light emitting units 210 corresponding to different colors that are sequentially arranged are repeatedly arranged in the column direction. However, it should be appreciated that in other embodiments, only two of the colors may correspond in the column direction of the pixel array. In the row direction of the pixel array 21, the light emitting cells 210 having the same color are shifted from each other, so that the plurality of light emitting cells 210 in the row direction do not correspond to the same color, and the display effect of the display panel can be further improved.

Further, the pixel units may be defined in a specific display panel according to actual conditions. The plurality of sub-pixels form a plurality of pixel units which are arranged in an array mode, and each pixel unit at least comprises three sub-pixels which respectively correspond to different colors. In this embodiment, as shown in fig. 5, three sub-pixels 200 corresponding to three adjacent light-emitting units 210 with different colors can be defined as one pixel unit. For example, three sub-pixels 200 corresponding to three adjacent light-emitting units 210 in the column direction may be defined as one pixel unit 20 a; alternatively, three sub-pixels corresponding to three adjacent light-emitting units 210 of different colors in two adjacent pixel columns may be defined as one pixel unit 20b, that is, the light-emitting units 210 of the three sub-pixels in the pixel unit 20b are respectively arranged on two adjacent columns in the pixel array 21, and at this time, the arrangement structure of each pixel unit 20b after being turned over by 180 ° along the row direction is the same as the arrangement structure of the adjacent pixel units 20b in the same column. It should be noted that the pixel units can be defined according to the specific algorithm of the display panel, and this is only a schematic illustration and is not a limitation.

Example two

The difference from the first embodiment is that in the present embodiment, there are four colors corresponding to the plurality of sub-pixels, for example, red, green, blue and white, or red, green, blue and yellow, etc. In a pixel array including light emitting units of a plurality of sub-pixels, there are pixel columns corresponding to two colors in a column direction. For example, in the pixel array, two colors (e.g., blue and white) correspond to a part of pixel columns, and another two colors (e.g., red and green) correspond to another part of pixel columns.

Fig. 6 is a schematic diagram illustrating a connection between a driving array and a peripheral driving circuit of a display panel according to a second embodiment of the present invention, and it is emphasized that, referring to fig. 6, a plurality of driving switches 320 in a plurality of sub-pixels are electrically connected to light emitting units of four colors, respectively. In the driving array 32 formed by a plurality of driving switches 320, the driving switches in each driving column correspond to the same color. For example, as shown in fig. 6, the driving switches 320 in the first driving column correspond to blue B, the driving switches 320 in the first driving column are connected to the data line S21, similarly, the driving switches 320 in the second driving column corresponding to white W are connected to the data line S22, the driving switches 320 in the third driving column corresponding to red R are connected to the data line S23, and the driving switches 320 in the fourth driving column corresponding to green G are connected to the data line S24.

In this embodiment, when there are four corresponding colors in the plurality of sub-pixels, each driving row corresponds to the same color by adjusting the arrangement of the driving switches, so that the data lines corresponding to the driving rows are connected to the driving switches of the same color, and each data line is connected to the peripheral driving circuit only through one switching element P. Moreover, since each data line is connected to the same color driving switch, all the data lines can be connected to the same switching signal line SW1 through the switching element P, and at this time, different data signal lines can be connected according to different color driving switches to provide data signals for different color driving switches, respectively. For example, as shown in fig. 6, in the present embodiment, the plurality of sub-pixels correspond to four colors, four data signal lines can be correspondingly provided in the source driving circuit of the peripheral driving circuit, and each data signal line provides a data signal for one of the driving switches of one color.

In addition, based on the display panel, the invention also provides a display device with the display panel. The display device correspondingly has better display resolution and display uniformity, and the structure of the peripheral driving circuit is simpler.

In summary, in the display panel provided by the present invention, the same color is not applied in the column direction of the pixel array, which is different from the conventional pixel arrangement in which the column directions all correspond to the same color. On this basis, in the driving array, the plurality of driving switches on the same column are electrically connected with the light-emitting units with the same color, so that the plurality of driving switches on the same column can be further connected to the same data line, that is, the plurality of driving switches connected with each data line correspond to the same color, and thus, each data line is only connected to the peripheral driving circuit through one switching element, thereby being beneficial to simplifying the connection mode of the data lines and the peripheral driving circuit and further simplifying the structure of the peripheral driving circuit.

The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.

Claims (9)

1. A display panel, comprising a plurality of sub-pixels formed in a display area, each of the sub-pixels including a light emitting unit and a driving switch, the light emitting unit including a first electrode, the driving switch being electrically connected to the first electrode, the light emitting units in the plurality of sub-pixels forming a pixel array, wherein: the plurality of light-emitting units on at least one pixel column in the pixel array correspond to sub-pixels of at least two colors; the plurality of driving switches in the plurality of sub-pixels form a driving array, and in the driving array, the plurality of driving switches on each driving column are electrically connected with the light-emitting units of the same color,

each driving switch is electrically connected with the first electrode through a contact hole; the partial driving columns are arranged between two adjacent pixel columns, and the first electrodes of the light emitting units corresponding to the colors of the partial driving columns in the two adjacent pixel columns extend to the area between the two pixel columns so as to be connected with the contact holes of the corresponding driving switches.

2. The display panel of claim 1, wherein the display panel further comprises a peripheral driving circuit in the non-display region, the peripheral driving circuit comprises a source driving circuit, the driving switches in the same driving column are all connected to the same data line, and the data line is connected to the source driving circuit through a switching element.

3. The display panel according to claim 2, wherein the source driver circuit includes a switching signal line and a data signal line, the data line being connected to the switching signal line and the data signal line through a switching element, the switching signal line being configured to control conduction of the switching element so that the data signal line supplies a data signal to the driving switch through the switching element; and the data signal lines respectively provide data signals for the driving switches corresponding to one of the colors, and the data lines corresponding to the same color are all connected to the same data signal line.

4. The display panel according to claim 3, wherein the switching element is a transistor switch, a gate of the transistor switch is connected to the switching signal line, a source of the transistor switch is connected to the data signal line, and a drain of the transistor switch is connected to the data line.

5. The display panel according to claim 3, wherein when three colors correspond to the plurality of sub-pixels, the source driving circuit comprises three data signal lines for respectively providing data signals for the sub-pixels of the three colors; when the plurality of sub-pixels correspond to four colors, the source driving circuit comprises four data signal lines, and the four data signal lines respectively provide data signals for the sub-pixels of the four colors.

6. The display panel according to claim 2, wherein the driving switch includes a driving transistor and a switching transistor, a drain electrode of the driving transistor is electrically connected to the first electrode through the contact hole, a source electrode of the switching transistor is connected to the data line, and a source electrode of the driving transistor is electrically connected to a drain electrode of the switching transistor.

7. The display panel of claim 1, wherein there are three colors corresponding to the plurality of sub-pixels; the light emitting units corresponding to three different colors are sequentially arranged in the column direction of the pixel array; in the row direction of the pixel array, the light emitting cells corresponding to the same color are shifted from each other along the column direction.

8. The display panel of claim 1, wherein the plurality of sub-pixels form a plurality of pixel units arranged in an array, each of the pixel units includes three sub-pixels respectively corresponding to different colors, and the light emitting units of the three sub-pixels in the pixel units are respectively arranged on two adjacent columns in the pixel array; and the arrangement structure of each pixel unit after being turned by 180 degrees along the row direction is the same as the arrangement structure of the adjacent pixel units in the same column.

9. A display device characterized by comprising the display panel according to any one of claims 1 to 8.

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