Display panel and display device

Abstract

The invention discloses a display panel and a display device. The display panel comprises a plurality of light-emitting sub-pixels arranged in an array, a plurality of first data lines and a plurality of second data lines. The plurality of light-emitting sub-pixels comprise first light-emitting sub-pixels of a first color in odd-numbered rows and second light-emitting sub-pixels of the first color in even-numbered rows; the first data lines are connected with the first light-emitting sub-pixels in the same column; the second data lines are connected with the second light-emitting sub-pixels in the same column; in the picture detection stage, the first data line and the second data line are used for providing different data signals. According to the embodiment of the invention, the short-circuit fault between the data lines connected with the adjacent same-color light-emitting sub-pixels can be effectively detected.

Description

Technical Field

[0001] The present application relates to the field of display, and in particular to a display panel and a display device. Background Art

[0002] During the production process of flexible OLED panels, short circuit faults may occur between adjacent data lines. In the case of short circuit faults between adjacent sub-pixels of the same color, existing detection methods are difficult to effectively detect this situation, which will cause the faulty display panel to enter the subsequent process, resulting in unnecessary waste of detection resources.

[0003] Therefore, how to effectively detect the short circuit fault of the data lines between adjacent sub-pixels of the same color has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0004] Embodiments of the present application provide a display panel and a display device, which can effectively detect short-circuit faults between data lines connected to adjacent same-color luminous sub-pixels.

[0005] In a first aspect, an embodiment of the present application provides a display panel, comprising: a plurality of light-emitting sub-pixels arranged in an array, a plurality of first data lines, and a plurality of second data lines. The plurality of light-emitting sub-pixels include first light-emitting sub-pixels of a first color in odd rows and second light-emitting sub-pixels of a first color in even rows; the first data line is connected to the first light-emitting sub-pixels in the same column; the second data line is connected to the second light-emitting sub-pixels in the same column; in the picture detection stage, the first data line and the second data line are used to provide different data signals.

[0006] In a second aspect, an embodiment of the present disclosure further provides a display device, comprising the display panel as described in the embodiment of the first aspect.

[0007] According to an embodiment of the present application, the plurality of light-emitting sub-pixels arranged in an array include first light-emitting sub-pixels in odd rows and second light-emitting sub-pixels in even rows, and the first light-emitting sub-pixels and the second light-emitting sub-pixels are both light-emitting sub-pixels of the first color. In the picture detection stage, the plurality of first data lines and the plurality of second data lines respectively provide different data signals to the first light-emitting sub-pixels in the same column and the second light-emitting sub-pixels in the same column. When a short circuit occurs between the first data line and the adjacent second data line, the data signal output by the first data line will be interfered by the second data line, or the data signal output by the second data line will be interfered by the first data line, so that the display brightness of a column of first light-emitting sub-pixels connected to the first data line or a column of second light-emitting sub-pixels connected to the second data line is affected, so that the short circuit failure of the first data line and the second data line can be intuitively observed in the picture detection stage, thereby realizing effective detection of the short circuit failure between the data lines connected to the adjacent same-color light-emitting sub-pixels. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Other features, objects and advantages of the present application will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals represent the same or similar features and the accompanying drawings are not drawn to scale.

[0009] Figure 1 A schematic diagram showing the structure of a display panel provided by an embodiment of the present application is shown;

[0010] Figure 2 A timing diagram of a display panel provided by an embodiment of the present application is shown;

[0011] Figure 3 Another structural schematic diagram of a display panel provided by an embodiment of the present application is shown;

[0012] Figure 4 Another timing diagram of a display panel provided by an embodiment of the present application is shown;

[0013] Figure 5 Another structural schematic diagram of a display panel provided by an embodiment of the present application is shown;

[0014] Figure 6 Another timing diagram of a display panel provided by an embodiment of the present application is shown;

[0015] Figure 7 Another structural schematic diagram of a display panel provided by an embodiment of the present application is shown;

[0016] Figure 8 A schematic structural diagram of a display device provided by an embodiment of the present application is shown. DETAILED DESCRIPTION

[0017] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present application and are not configured to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0018] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0019] It should be understood that when describing the structure of a component, when a layer or a region is referred to as being "on" or "over" another layer or another region, it may mean that it is directly on the other layer or another region, or that other layers or regions are included between it and the other layer or another region. Moreover, if the component is turned over, the layer or a region will be "below" or "beneath" another layer or another region.

[0020] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0021] In the embodiments of the present application, the term “electrically connected” may refer to a direct electrical connection between two components, or may refer to an electrical connection between two components via one or more other components.

[0022] In the embodiment of the present application, the first node, the second node and the third node are only defined for the convenience of describing the circuit structure, and the first node, the second node and the third node are not actual circuit units.

[0023] It is obvious to those skilled in the art that various modifications and changes can be made in the present application without departing from the spirit or scope of the present application. Therefore, the present application is intended to cover modifications and changes of the present application that fall within the scope of the corresponding claims (technical solutions for protection) and their equivalents. It should be noted that the implementation methods provided in the embodiments of the present application can be combined with each other without contradiction.

[0024] The embodiments of the present application provide a display panel and a display device. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0025] Figure 1 A schematic diagram of the structure of a display panel provided by an embodiment of the present application is shown as follows: Figure 1 As shown, the display panel includes: a plurality of light-emitting sub-pixels arranged in an array, a plurality of first data lines 21 and a plurality of second data lines 22 .

[0026] The plurality of light-emitting sub-pixels include odd-numbered rows of first light-emitting sub-pixels 11 and even-numbered rows of second light-emitting sub-pixels 12, and the first light-emitting sub-pixels 11 and the second light-emitting sub-pixels 12 are both light-emitting sub-pixels of the first color. The first data line 21 is connected to the first light-emitting sub-pixels 11 in the same column, and the second data line 22 is connected to the second light-emitting sub-pixels 12 in the same column.

[0027] Specifically, the first data lines 21 and the second data lines 22 are alternately arranged in sequence, a single first data line 21 is connected to the first light-emitting sub-pixels 11 in the same column, and multiple first data lines 21 can connect multiple columns of first light-emitting sub-pixels 11 in all odd rows, so that when the first data line 21 outputs a data signal, all the first light-emitting sub-pixels 11 in the odd rows are lit. A single second data line 22 is connected to the second light-emitting sub-pixels 12 in the same column, and multiple second data lines 22 can connect multiple columns of second light-emitting sub-pixels 12 in all even rows, so that when the second data line 22 outputs a data signal, all the second light-emitting sub-pixels 12 in the even rows are lit.

[0028] In the picture detection stage, the first data line 21 and the second data line 22 are used to provide different data signals. When all the first data lines 21 provide data signals, each first light-emitting sub-pixel 11 on the odd-numbered rows is lit, and the second data lines 22 provide different data signals, so that each second light-emitting sub-pixel 12 on the even-numbered rows is displayed with different brightness, and the entire display panel now presents a first color picture. When all the second data lines 22 provide data signals, each second light-emitting sub-pixel 12 on the even-numbered rows is lit, and the first data lines 21 provide different data signals, so that each first light-emitting sub-pixel 11 on the odd-numbered rows is displayed with different brightness, and the entire display panel now also presents a first color picture.

[0029] As an example, when only the driving circuit of the first light-emitting sub-pixel 11 is enabled, the first data line 21 and the second data line 22 output different data signals. Since only the driving circuit of the first light-emitting sub-pixel 11 is enabled, in order to make the display panel emit light normally, the first data line 21 is required to provide a data signal for lighting, and the second data line 22 outputs a data signal with a voltage different from the lighting data signal. At this time, only the first light-emitting sub-pixel 11 is lit, and the second light-emitting sub-pixel 12 remains in a dark state. If a short circuit occurs between a first data line 21 and an adjacent second data line 22, the data signal provided by the first data line 21 will be interfered by the second data line 22, and the data signal provided by the second data line 22 will also be interfered by the first data line 21. When the voltage of the data signal provided by the second data line 22 is greater than the voltage of the data signal provided by the first data line 21, the voltage of the data signal provided by the faulty first data line 21 to the corresponding column of the first light-emitting sub-pixels 11 will increase, thereby reducing the brightness of the column of the first light-emitting sub-pixels 11, and thus causing a dark line to appear in the display panel presenting the first color picture.

[0030] As another example, when only the driving circuit of the second light-emitting sub-pixel 12 is enabled, the first data line 21 and the second data line 22 output different data signals. Since only the driving circuit of the second light-emitting sub-pixel 12 is enabled, in order to make the display panel emit light normally, the second data line 22 is required to provide a data signal for lighting, and the first data line 21 outputs a data signal with a voltage different from the lighting data signal. At this time, only the second light-emitting sub-pixel 12 is lit, and the first light-emitting sub-pixel 11 remains in a dark state. If a short circuit occurs between a first data line 21 and an adjacent second data line 22, the data signal provided by the first data line 21 will be interfered by the second data line 22, and the data signal provided by the second data line 22 will also be interfered by the first data line 21. When the voltage of the data signal provided by the first data line 21 is greater than the voltage of the data signal provided by the second data line 22, the voltage of the data signal provided by the faulty second data line 22 to the corresponding column of the second light-emitting sub-pixel 12 will increase, thereby reducing the brightness of the column of the second light-emitting sub-pixel 12, and thus a dark line will appear in the display panel presenting the first color picture.

[0031] According to an embodiment of the present application, the plurality of light-emitting sub-pixels arranged in an array include odd-numbered rows of first light-emitting sub-pixels 11 and even-numbered rows of second light-emitting sub-pixels 12. In the picture detection stage, the plurality of first data lines 21 and the plurality of second data lines 22 provide different data signals to the first light-emitting sub-pixels 11 in the same column and the second light-emitting sub-pixels 12 in the same column, respectively. When a short circuit fault occurs between the first data line 21 and the adjacent second data line 22, the data signal output by the first data line 21 will be interfered by the second data line 22, or the data signal output by the second data line 22 will be interfered by the first data line 21, so that the display brightness of a column of first light-emitting sub-pixels 11 connected to the first data line 21 or a column of second light-emitting sub-pixels 12 connected to the second data line 22 is affected. Therefore, it is possible to intuitively observe the short circuit fault of the first data line 21 and the second data line 22 in the picture detection stage, thereby realizing effective detection of the short circuit fault between the data lines connected to the adjacent same-color light-emitting sub-pixels.

[0032] In some embodiments, during the picture detection stage, one of the first data line and the second data line provides a lighting data signal, and the other provides a black state data signal; wherein the lighting data signal is used to light up the light-emitting sub-pixel, and the black state data signal is used to drive the light-emitting sub-pixel to maintain a dark state.

[0033] Exemplarily, the signal voltage of the light-up data signal is 3V, and the signal voltage of the black-state data signal is 7V. Figure 2 A timing diagram of a display panel provided by an embodiment of the present application is shown as follows: Figure 2 As shown, during the process of line-by-line scanning, in the T1 period, the data fan-out line is connected to the first data line through the multiplexing module, and a 3V light-up data signal is provided through the first data line. In the T2 period, the data fan-out line is connected to the second data line through the multiplexing module, and a 7V black state data signal is provided through the second data line. The data fan-out line can be connected to one of the first data line and the second data line through the multiplexing module, and the data signal provided by the data fan-out line can be transmitted through the first data line or the second data line.

[0034] When the first data line provides a lighting data signal and the driving circuits of all first light-emitting sub-pixels are enabled, all first light-emitting sub-pixels will be lit, and the display panel will present a first color screen. If a first data line and an adjacent second data line have a short circuit fault, the voltage of the lighting data signal output by the first data line and the voltage of the black state data signal output by the second data line will change. For example, the first data line and the second data line that have a short circuit fault both output a 5V voltage. At this time, the signal voltage received by a column of first light-emitting sub-pixels connected to the faulty first data line increases from 3V to 5V, thereby reducing the luminous brightness of this column of first light-emitting sub-pixels, and further causing a dark line with a lower brightness than other areas of the screen to appear on the entire screen of the display panel.

[0035] When the second data line provides a lighting data signal and the driving circuits of all second light-emitting sub-pixels are enabled, all second light-emitting sub-pixels will be lit, and the display panel will also present the first color screen. If a short circuit occurs between a second data line and an adjacent first data line, the voltage of the lighting data signal output by the second data line and the voltage of the black state data signal output by the first data line will change, for example, the first data line and the second data line that have a short circuit failure both output a 5V voltage. At this time, the signal voltage received by a column of second light-emitting sub-pixels connected to the faulty second data line increases from 3V to 5V, thereby reducing the luminous brightness of this column of second light-emitting sub-pixels, and then causing a dark line with a brightness lower than that of other areas of the screen to appear on the entire screen of the display panel. Therefore, in the screen detection stage, by observing whether a dark line appears on the display panel, it is possible to intuitively observe whether a short circuit occurs between the first data line and the second data line, thereby effectively detecting the short circuit failure between the data lines connected to adjacent light-emitting sub-pixels of the same color.

[0036] It should be noted that the signal voltage of the light-on data signal is 3V and the signal voltage of the black-state data signal is 7V, which are only examples. The specific signal voltage settings need to be determined according to actual conditions and are not specifically limited here.

[0037] In some embodiments, Figure 3 Another structural schematic diagram of a display panel provided by an embodiment of the present application is shown as follows: Figure 3 As shown, the display panel further includes: a plurality of first scanning signal lines 31 and a plurality of second scanning signal lines 32 .

[0038] The first scanning signal line 31 is connected to the first light-emitting sub-pixel 11 in the same row; the second scanning signal line 32 is connected to the second light-emitting sub-pixel 12 in the same row. In a single data frame, the adjacent first scanning signal line 31 and the second scanning signal line 32 are used to respectively provide a first effective pulse to the driving circuit of the first light-emitting sub-pixel 11 and a second effective pulse to the driving circuit of the second light-emitting sub-pixel 12. The first effective pulse can drive the first light-emitting sub-pixel in the same row to light up; the second effective pulse can drive the second light-emitting sub-pixel in the same row to light up.

[0039] Specifically, when the first scanning signal line 31 provides the first effective pulse, the driving circuit of the first light-emitting sub-pixel 11 in the same row is enabled, and at this time, as long as all the first data lines 21 connected to the first light-emitting sub-pixel 11 provide the lighting data signal, the first light-emitting sub-pixel 11 is lit. As long as all the first data lines 21 connected to the first light-emitting sub-pixel 11 provide the black state data signal, the first light-emitting sub-pixel 11 remains in the dark state.

[0040] When the second scanning signal line 32 provides the second effective pulse, the driving circuit of the second light-emitting sub-pixel 12 in the same row is enabled, and at this time, as long as all the second data lines 22 connected to the second light-emitting sub-pixel 12 provide the lighting data signal, the second light-emitting sub-pixel 12 will be lit. If all the second data lines 22 connected to the second light-emitting sub-pixel 12 provide the black state data signal, the second light-emitting sub-pixel 12 remains in the dark state.

[0041] For example, Figure 4 Another timing diagram of a display panel provided by an embodiment of the present application is shown in FIG. Figure 4As shown, the plurality of first scanning signal lines 31 include SCAN1, SCAN3 and SCAN5. The plurality of second scanning signal lines 32 include SCAN2, SCAN4 and SCAN6. Since the driving circuit of the first light-emitting sub-pixel 11 and the driving circuit of the second light-emitting sub-pixel 12 are both effective at low level, the first effective pulse and the second effective pulse are both at low level. In a single data frame, in the first time period t11, when SCAN1 provides the first effective pulse, SCAN2 maintains a high level, and the remaining scanning signal lines maintain a high level; when SCAN2 provides the second effective pulse, SCAN1 maintains a high level, and the remaining scanning signal lines maintain a high level. In the second time period t12, when SCAN3 provides the first effective pulse, SCAN4 maintains a high level, and the remaining scanning signal lines maintain a high level; when SCAN4 provides the second effective pulse, SCAN3 maintains a high level, and the remaining scanning signal lines maintain a high level. In the third period t13, when SCAN5 provides the first effective pulse, SCAN6 maintains a high level, and the other scan signal lines maintain a high level; when SCAN6 provides the second effective pulse, SCAN5 maintains a high level, and the other scan signal lines maintain a high level.

[0042] During the image detection stage, in order to avoid the situation where the image problem of the display panel is not discovered due to the first light-emitting sub-pixel 11 and the second light-emitting sub-pixel 12 being lit at the same time, it is necessary to detect the display conditions of the first light-emitting sub-pixel and the second light-emitting sub-pixel respectively. Therefore, the first scanning signal line 31 and the second scanning signal line 32 will not output valid pulses at the same time, that is, the first valid pulse and the second valid pulse do not overlap.

[0043] The present disclosure sets the first scanning signal line 31 and the second scanning signal line 32 to output effective pulses respectively, so that different data signals can be outputted respectively through the first data line 21 and the second data line 22 in the picture detection stage, so that only the first light-emitting sub-pixel 11 or only the second light-emitting sub-pixel 12 on the display panel is lit. Since the voltages of the data signals outputted by the first data line 21 and the second data line 22 at the same time are different, when a short circuit occurs between a first data line 21 and an adjacent second data line 22, the voltage of the data signal outputted by the first data line 21 and the second data line 22 with the short circuit failure will change, so that the brightness of a column of the first light-emitting sub-pixel 11 or the second light-emitting sub-pixel 12 connected thereto will change, and a dark line with a brightness lower than that of other areas of the picture can be clearly observed on the entire picture of the display panel. Therefore, in the picture detection stage, by observing whether a dark line appears on the display panel, it is possible to intuitively observe whether a short circuit failure occurs between the first data line 21 and the second data line 22, thereby effectively detecting the short circuit failure between the data lines connected to the adjacent light-emitting sub-pixels of the same color.

[0044] According to some embodiments of the present application, optionally, continue to refer to Figure 3 and Figure 4 In the interval when the first scanning signal line 31 provides the first effective pulse, the first data line 21 provides the lighting data signal; in the interval when the second scanning signal line 32 provides the second effective pulse, the second data line 22 provides the black state data signal.

[0045] Exemplarily, when detecting the lighting condition of the first light-emitting sub-pixel 11 in the display panel, in the first time period t11, SCAN1 provides the first effective pulse, SCAN2 maintains a high level, at which time the first data line 21 provides a lighting data signal, and the second data line 22 provides a black state data signal. When SCAN1 maintains a high level, SCAN2 provides a second effective pulse, at which time the first data line 21 continues to provide a lighting data signal, and the second data line 22 provides a black state data signal. Therefore, it can be ensured that during the period when SCAN1 provides the first effective pulse, the first data line 21 provides a lighting data signal so that the first light-emitting sub-pixel 11 can be lit in the light-emitting stage, and the second light-emitting sub-pixel 12 will not receive a black state data signal because the second scanning signal line 32 maintains a high level. During the period when SCAN2 provides the second effective pulse, the first light-emitting sub-pixel 11 will not receive a lighting data signal because the first scanning signal line 31 maintains a high level, and the second light-emitting sub-pixel 12 will not light up because the second data line 22 provides a black state data signal. Therefore, it can be achieved that during the detection of the lighting status of the first light-emitting sub-pixel 11 in the display panel, only the first light-emitting sub-pixel 11 is lit.

[0046] When a short circuit occurs between a first data line 21 and an adjacent second data line 22, the brightness of a column of first light-emitting sub-pixels 11 connected to the first data line 21 with the short circuit fault will be reduced, and a dark line with a brightness lower than that of other areas of the screen can be clearly observed on the entire screen of the display panel. Therefore, in the screen detection stage, by observing whether a dark line appears on the display panel, it is possible to intuitively observe whether a short circuit fault occurs between the first data line 21 and the second data line 22, thereby effectively detecting the short circuit fault between the data lines connected to adjacent light-emitting sub-pixels of the same color.

[0047] According to other embodiments of the present application, optionally, continue to refer to Figure 3 and Figure 4 In the interval when the second scanning signal line 32 provides the second effective pulse, the second data line 22 provides the lighting data signal; in the interval when the first scanning signal line 31 provides the first effective pulse, the first data line 21 provides the black state data signal.

[0048] Exemplarily, when detecting the lighting condition of the second light-emitting sub-pixel 12 in the display panel, in the first time period t11, SCAN1 provides the first effective pulse, SCAN2 maintains a high level, at which time the first data line 21 provides a black state data signal, and the second data line 22 provides a lighting data signal. When SCAN1 maintains a high level, SCAN2 provides a second effective pulse, at which time the first data line 21 continues to provide a black state data signal, and the second data line 22 provides a lighting data signal. Therefore, it can be ensured that during the period when SCAN1 provides the first effective pulse, the first data line 21 provides a black state data signal to keep the first light-emitting sub-pixel 11 in a dark state, and the second light-emitting sub-pixel 12 will not receive a lighting data signal because the second scanning signal line 32 maintains a high level. During the period when SCAN2 provides the second effective pulse, the second light-emitting sub-pixel 12 can be lit in the light-emitting stage because the second data line 22 provides a lighting data signal, and the first light-emitting sub-pixel 11 will not receive a black state data signal because SCAN1 maintains a high level. Therefore, it can be achieved that during the detection of the lighting status of the second light-emitting sub-pixel 12 in the display panel, only the second light-emitting sub-pixel 12 is lit.

[0049] When a short circuit occurs between a first data line 21 and an adjacent second data line 22, the brightness of a column of second light-emitting sub-pixels 12 connected to the second data line 22 with the short circuit fault will be reduced, and a dark line with a lower brightness than other areas of the screen can be clearly observed on the entire screen of the display panel. Therefore, in the screen detection stage, by observing whether a dark line appears on the display panel, it is possible to intuitively observe whether a short circuit fault occurs between the first data line 21 and the second data line 22, thereby effectively detecting the short circuit fault between the data lines connected to adjacent light-emitting sub-pixels of the same color.

[0050] In some embodiments, Figure 5 Another structural schematic diagram of a display panel provided by an embodiment of the present application is shown as follows: Figure 5 As shown, the plurality of light-emitting sub-pixels further include a third light-emitting sub-pixel 13 of a second color and a fourth light-emitting sub-pixel 14 of a third color. The first color may be green, and the second color and the third color may be red and blue, respectively.

[0051] When the first light-emitting sub-pixel 11 of the first color or the second light-emitting sub-pixel 12 of the first color is detected, the third light-emitting sub-pixel 13 of the second color and the fourth light-emitting sub-pixel 14 of the third color need to remain in a dark state to avoid interference with the first color image in the display panel. The third light-emitting sub-pixels 13 of odd rows, the fourth light-emitting sub-pixels 14 of odd rows, the first light-emitting sub-pixels 11, the second light-emitting sub-pixels 12, the third light-emitting sub-pixels 13 of even rows, and the fourth light-emitting sub-pixels 14 of even rows are arranged in sequence.

[0052] In some embodiments, see Figure 5 The display panel further includes: a plurality of third scanning signal lines 33 and a plurality of fourth scanning signal lines 34 .

[0053] The third scanning signal line 33 is connected to the third light-emitting sub-pixel 13 of the odd row and the fourth light-emitting sub-pixel 14 of the even row in two adjacent rows; the fourth scanning signal line 34 is connected to the third light-emitting sub-pixel 13 of the even row and the fourth light-emitting sub-pixel 14 of the odd row in two adjacent rows.

[0054] Among them, the third scanning signal line 33 is used to provide a third effective pulse, and the fourth scanning signal line 34 is used to provide a fourth effective pulse; the third effective pulse is used to drive the third light-emitting sub-pixel 13 of the odd row and the fourth light-emitting sub-pixel 14 of the even row; the fourth effective pulse is used to drive the third light-emitting sub-pixel 13 of the even row and the fourth light-emitting sub-pixel 14 of the odd row.

[0055] Specifically, Figure 6 Another timing diagram of a display panel provided by an embodiment of the present application is shown in FIG. Figure 6 As shown, since the driving circuit of the first light-emitting sub-pixel 11, the driving circuit of the second light-emitting sub-pixel 12, the driving circuit of the third light-emitting sub-pixel 13 and the driving circuit of the fourth light-emitting sub-pixel 14 are all low-level valid, the first valid pulse, the second valid pulse, the third valid pulse and the fourth valid pulse are all low-level.

[0056] In the third time period t21, the first scanning signal line 31 provides the first effective pulse, and the second scanning signal line 32, the third scanning signal line 33 and the fourth scanning signal line 34 all maintain a high level. At this time, the first light-emitting sub-pixel 11 connected to the first scanning signal line 31 can be set to a bright state or a dark state, and the second light-emitting sub-pixel 12, the third light-emitting sub-pixel 13 and the fourth light-emitting sub-pixel 14 all maintain a dark state. Therefore, the present disclosure can set the first light-emitting sub-pixel 11 to a bright state when the first scanning signal line 31 provides a first effective pulse, and all light-emitting sub-pixels remain in a dark state when other scanning signal lines provide effective pulses, thereby achieving that during the picture detection of the first color light-emitting sub-pixels of the odd-numbered rows, the display panel only presents the first color.

[0057] In the fourth time period t22, the fourth scanning signal line 34 provides a fourth effective pulse, and the first scanning signal line 31, the second scanning signal line 32, and the third scanning signal line 33 all maintain a high level. At this time, the third light-emitting sub-pixel 13 of the even-numbered rows and the fourth light-emitting sub-pixel 14 of the odd-numbered rows connected to the fourth scanning signal line 34 can be set to a bright state or a dark state, respectively, and the first light-emitting sub-pixel 11, the second light-emitting sub-pixel 12, the third light-emitting sub-pixel 13 of the odd-numbered rows, and the fourth light-emitting sub-pixel 14 of the even-numbered rows all maintain a dark state. Therefore, the present disclosure can set the third light-emitting sub-pixel 13 of the even-numbered rows to a bright state and the fourth light-emitting sub-pixel 14 of the odd-numbered rows to a dark state when the fourth scanning signal line 34 provides a fourth effective pulse, thereby realizing that during the picture detection of the light-emitting sub-pixel of the second color, the display panel only presents the second color. Or when the fourth scanning signal line 34 provides a fourth effective pulse, the third light-emitting sub-pixels 13 in the even rows are set to a dark state, and the fourth light-emitting sub-pixels 14 in the odd rows remain in a bright state, thereby achieving that during image detection of the light-emitting sub-pixels of the third color, the display panel only presents the third color.

[0058] In the fifth period t23, the second scanning signal line 32 provides a second effective pulse, and the first scanning signal line 31, the third scanning signal line 33, and the fourth scanning signal line 34 all maintain a high level. At this time, the second light-emitting sub-pixel 12 connected to the second scanning signal line 32 can be set to a bright state or a dark state, and the first light-emitting sub-pixel 11, the third light-emitting sub-pixel 13, and the fourth light-emitting sub-pixel 14 all maintain a dark state. Therefore, the present disclosure can set the second light-emitting sub-pixel 12 to a bright state when the second scanning signal line 32 provides a second effective pulse, and all light-emitting sub-pixels remain in a dark state when other scanning signal lines provide effective pulses, thereby achieving that during the picture detection of the first color light-emitting sub-pixels of the even-numbered rows, the display panel only presents the first color.

[0059] In the sixth period t24, the third scanning signal line 33 provides a third effective pulse, and the first scanning signal line 31, the second scanning signal line 32, and the fourth scanning signal line 34 all maintain a high level. At this time, the third light-emitting sub-pixel 13 of the odd-numbered rows and the fourth light-emitting sub-pixel 14 of the even-numbered rows connected to the third scanning signal line 33 can be set to a bright state or a dark state, respectively, and the first light-emitting sub-pixel 11, the second light-emitting sub-pixel 12, the third light-emitting sub-pixel 13 of the even-numbered rows, and the fourth light-emitting sub-pixel 14 of the odd-numbered rows all maintain a dark state. Therefore, the present disclosure can set the third light-emitting sub-pixel 13 of the odd-numbered rows to a bright state and the fourth light-emitting sub-pixel 14 of the even-numbered rows to a dark state when the third scanning signal line 33 provides a third effective pulse, thereby realizing that during the picture detection of the light-emitting sub-pixel of the second color, the display panel only presents the second color. Or when the third scanning signal line 33 provides a third effective pulse, the third light-emitting sub-pixels 13 in odd rows are set to a dark state, and the fourth light-emitting sub-pixels 14 in even rows remain in a bright state, thereby achieving that during image detection of the light-emitting sub-pixels of the second color, the display panel only presents the third color.

[0060] In some embodiments, see Figure 5 In the third light-emitting sub-pixels 13 of the same column, the third light-emitting sub-pixels 13 of the odd rows are connected to the corresponding first data line 21, and the third light-emitting sub-pixels 13 of the even rows are connected to the corresponding second data line 22; in the fourth light-emitting sub-pixels 14 of the same column, the fourth light-emitting sub-pixels 14 of the odd rows are connected to the corresponding first data line 21, and the fourth light-emitting sub-pixels 14 of the even rows are connected to the corresponding second data line 22.

[0061] Exemplarily, in the image detection stage, when the third light-emitting sub-pixel 13 is subjected to image detection, when the third scanning signal line 33 provides the third effective pulse, the first data line 21 provides the lighting data signal, so that the third light-emitting sub-pixel 13 of the odd-numbered row can be lit in the light-emitting stage, and the second data line 22 provides the black state data signal at this time, so that the fourth light-emitting sub-pixel 14 of the even-numbered row can remain in the dark state in the light-emitting stage. When the fourth scanning signal line 34 provides the fourth effective pulse, the first data line 21 provides the black state data signal, so that the fourth light-emitting sub-pixel 14 of the odd-numbered row can remain in the dark state in the light-emitting stage, and the second data line 22 provides the lighting data signal, so that the third light-emitting sub-pixel 13 of the even-numbered row can be lit in the light-emitting stage. Furthermore, when the first scan signal line 31 provides the first effective pulse, the first data line 21 provides the black state data signal and the second data line 22 provides the light-on data signal, and when the second scan signal line 32 provides the second effective pulse, the first data line 21 provides the light-on data signal and the second data line 22 provides the black state data signal, so that the first light-emitting sub-pixel 11 and the second light-emitting sub-pixel 12 are not lighted. Thus, in the picture detection stage, when the third scan signal line 33 provides the third effective pulse, the third light-emitting sub-pixel 13 of the odd-numbered row is lighted, and when the fourth scan signal line 34 provides the fourth effective pulse, the third light-emitting sub-pixel 13 of the even-numbered row is lighted. In addition, because the first light-emitting sub-pixel 11 and the second light-emitting sub-pixel 12 are not lighted during the period when the first scan signal line 31 provides the first effective pulse and the period when the second scan signal line 32 provides the second effective pulse, only the third light-emitting sub-pixel 13 is lighted during the picture detection stage, and the display panel only presents the second color.

[0062] In the picture detection stage, when the fourth light-emitting sub-pixel 14 is subjected to picture detection, when the third scanning signal line 33 provides the third effective pulse, the first data line 21 provides the black state data signal, so that the third light-emitting sub-pixel 13 of the odd-numbered rows can remain in the dark state during the light-emitting stage, and the second data line 22 provides the lighting data signal at this time, so that the fourth light-emitting sub-pixel 14 of the even-numbered rows can be lit during the light-emitting stage. When the fourth scanning signal line 34 provides the fourth effective pulse, the first data line 21 provides the lighting data signal, so that the fourth light-emitting sub-pixel 14 of the odd-numbered rows can be lit during the light-emitting stage, and the second data line 22 provides the black state data signal, so that the third light-emitting sub-pixel 13 of the even-numbered rows can remain in the dark state during the light-emitting stage. Furthermore, when the first scan signal line 31 provides the first effective pulse, the first data line 21 provides the black state data signal and the second data line 22 provides the light-on data signal, and when the second scan signal line 32 provides the second effective pulse, the first data line 21 provides the light-on data signal and the second data line 22 provides the black state data signal, so that the first light-emitting sub-pixel 11 and the second light-emitting sub-pixel 12 are not lighted. Thus, in the picture detection stage, when the third scan signal line 33 provides the third effective pulse, the fourth light-emitting sub-pixel 14 of the even-numbered row is lighted, and when the fourth scan signal line 34 provides the fourth effective pulse, the fourth light-emitting sub-pixel 14 of the odd-numbered row is lighted. In addition, because the first light-emitting sub-pixel 11 and the second light-emitting sub-pixel 12 are not lighted during the period when the first scan signal line 31 provides the first effective pulse and the period when the second scan signal line 32 provides the second effective pulse, only the fourth light-emitting sub-pixel 14 is lighted during the picture detection stage, and the display panel only presents the third color.

[0063] Therefore, in the picture detection stage, by adjusting the output signals of the first data line 21 and the second data line 22, it is possible to achieve that only the third light-emitting sub-pixel 13 or the fourth light-emitting sub-pixel 14 is lit, and the other light-emitting sub-pixels remain in a dark state, so that the entire display panel only presents the second color picture or the third color picture. Therefore, the lighting status of the third light-emitting sub-pixel 13 or the lighting status of the fourth light-emitting sub-pixel 14 can be detected, and since other light-emitting sub-pixels are arranged between adjacent third light-emitting sub-pixels 13 or adjacent fourth light-emitting sub-pixels 14, when a short circuit fault occurs between the first data line 21 and the second data line 22, it can be directly judged by observing the display status of the display panel without being interfered by other light-emitting sub-pixels.

[0064] In some embodiments, see Figure 6In a single data frame, the first scanning signal line, the fourth scanning signal line, the second scanning signal line and the third scanning signal line corresponding to two adjacent rows of pixels sequentially output valid pulses. In the third period t21, the first scanning signal line provides a first valid pulse, in the fourth period t22, the fourth scanning signal line provides a fourth valid pulse, in the fifth period t23, the second scanning signal line provides a second valid pulse, and in the sixth period t24, the third scanning signal line provides a third valid pulse.

[0065] In some embodiments, during the image detection stage, the first data line and the second data line output a black voltage during the interval in which the third scan signal line provides a third effective pulse; the first data line and the second data line output a black voltage during the interval in which the fourth scan signal line provides a fourth effective pulse.

[0066] Specifically, in the image detection stage, when the first light-emitting sub-pixel or the second light-emitting sub-pixel is subjected to image detection, the display panel is required to display only the first color image corresponding to the first light-emitting sub-pixel, or only the first color image corresponding to the second light-emitting sub-pixel. Therefore, in the interval in which the third scanning signal line provides the third effective pulse, the first data line and the second data line both output a black state voltage, so that the third light-emitting sub-pixel of the odd-numbered row and the fourth light-emitting sub-pixel of the even-numbered row connected to the third scanning signal line are both kept in a dark state. In the interval in which the fourth scanning signal line provides the fourth effective pulse, the first data line and the second data line still need to output a black state voltage, so that the third light-emitting sub-pixel of the even-numbered row and the fourth light-emitting sub-pixel of the odd-numbered row connected to the fourth scanning signal line are both kept in a dark state.

[0067] When the first light-emitting sub-pixel is subjected to screen detection, in a single data frame, in the interval in which the first scan signal line provides the first effective pulse, the first data line outputs a light-on data signal, and the second data line outputs a black state data signal, at which time only the first light-emitting sub-pixel is illuminated. In the interval in which the second scan signal line provides the second effective pulse, the first data line continues to output a light-on data signal, and the second data line outputs a black state data signal, at which time all the light-emitting sub-pixels do not emit light. In the interval in which the third scan signal line provides the third effective pulse, the first data line and the second data line both output a black state voltage, at which time all the light-emitting sub-pixels do not emit light. In the interval in which the fourth scan signal line provides the fourth effective pulse, the first data line and the second data line both output a black state voltage, at which time all the light-emitting sub-pixels do not emit light. As a result, in a single data frame, only in the interval in which the first effective pulse is the first light-emitting sub-pixel illuminated, so in the entire screen detection stage, the display panel can only present the first color screen corresponding to the first light-emitting sub-pixel.

[0068] When the second light-emitting sub-pixel is subjected to screen detection, in a single data frame, in the interval in which the first scan signal line provides the first effective pulse, the first data line outputs a black state data signal, and the second data line outputs a light-on data signal, at which time all the light-emitting sub-pixels are not emitting light. In the interval in which the second scan signal line provides the second effective pulse, the first data line continues to output a black state data signal, and the second data line outputs a light-on data signal, at which time only the second light-emitting sub-pixel is illuminated. In the interval in which the third scan signal line provides the third effective pulse, the first data line and the second data line both output a black state voltage, at which time all the light-emitting sub-pixels are not emitting light. In the interval in which the fourth scan signal line provides the fourth effective pulse, the first data line and the second data line both output a black state voltage, at which time all the light-emitting sub-pixels are not emitting light. As a result, in a single data frame, only in the interval in which the second effective pulse is there a second light-emitting sub-pixel illuminated, so in the entire screen detection stage, the display panel can only present the first color screen corresponding to the second light-emitting sub-pixel.

[0069] In some embodiments, Figure 7 Another structural schematic diagram of a display panel provided by an embodiment of the present application is shown as follows: Figure 7 As shown, the display panel further includes: a plurality of multiplexing modules 40, an input terminal 41 of the multiplexing module 40 is connected to a data signal terminal 51 of a driving chip 50, a first output terminal 42 of the multiplexing module 40 is connected to a first data line 21, and a second output terminal 43 of the multiplexing module 40 is connected to a second data line 22. The multiplexing module 40 is used to provide a data signal to the first data line 21 during a period when the first scanning signal line 31 provides a first effective pulse; and to provide a data signal to the second data line 22 during a period when the second scanning signal line 32 provides a second effective pulse.

[0070] Specifically, in the picture detection stage, the data signal terminal 51 of the driving chip 50 inputs a signal to the input terminal 41 of the multiplexing module 40 , so that the multiplexing module 40 starts to work.

[0071] When the first light-emitting sub-pixel 11 is detected, the multiplexing module 40 provides a lighting data signal to the first data line 21 through the first output terminal 42 during the interval in which the first scanning signal line 31 provides the first effective pulse. During the interval in which the second scanning signal line 32 provides the second effective pulse, the black state data signal continues to be provided to the second data line 22 through the second output terminal 43. This ensures that during the period in which the first scanning signal line 31 provides the first effective pulse, the first data line 21 provides a lighting data signal so that the first light-emitting sub-pixel 11 can be lit in the light-emitting stage, and the second light-emitting sub-pixel 12 will not receive the black state data signal because the second scanning signal line 32 does not output an effective pulse. During the period in which the second scanning signal line 32 provides the second effective pulse, the second light-emitting sub-pixel 12 will not be lit because the second data line 22 provides a black state data signal, and the first light-emitting sub-pixel 11 will not receive the black state data signal because the first scanning signal line 31 does not output an effective pulse. Therefore, during the period in which the lighting condition of the first light-emitting sub-pixel 11 in the display panel is detected, only the first light-emitting sub-pixel 11 is lit.

[0072] When the second light-emitting sub-pixel 12 is subjected to screen detection, the multiplexing module 40 provides a black state data signal to the first data line 21 through the first output terminal 42 during the interval in which the first scan signal line 31 provides the first effective pulse. The second data line 22 is provided with a lighting data signal through the second output terminal 43 during the interval in which the second scan signal line 32 provides the second effective pulse. This ensures that during the period in which the first scan signal line 31 provides the first effective pulse, the first light-emitting sub-pixel 11 will not be lit because the first data line 21 provides the black state data signal, and the second light-emitting sub-pixel 12 will not receive the black state data signal because the second scan signal line 32 does not output the effective pulse. During the period in which the second scan signal line 32 provides the second effective pulse, the first light-emitting sub-pixel 11 will not receive the lighting data signal because the first scan signal line 31 does not output the effective pulse, and the second light-emitting sub-pixel 12 can be lit in the light-emitting stage because the second data line 22 provides the lighting data signal. Therefore, during the period in which the lighting condition of the second light-emitting sub-pixel 12 in the display panel is detected, only the second light-emitting sub-pixel 12 is lit.

[0073] The present application also provides a display device, including the display panel provided by the present application. Figure 8 , Figure 8 It is a structural schematic diagram of a display device provided in an embodiment of the present application. Figure 8 The provided display device 1000 includes the display panel 100 provided by any of the above embodiments of the present application. Figure 8The embodiment only takes a mobile phone as an example to illustrate the display device 1000. It can be understood that the display device provided in the embodiment of the present application can be a wearable product, a computer, a television, a car display device, or other display devices with display functions, and the present application does not make specific restrictions on this. The display device provided in the embodiment of the present application has the beneficial effects of the display panel provided in the embodiment of the present application. For details, please refer to the specific description of the display panel in the above embodiments, and this embodiment will not be repeated here.

[0074] According to the embodiments described above in the present application, these embodiments do not describe all the details in detail, nor do they limit the present application to the specific embodiments described. Obviously, many modifications and changes can be made based on the above description. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can make good use of the present application and the modifications based on the present application. The present application is limited only by the claims and their full scope and equivalents.

Claims

1. A display panel, characterized in that: include: A plurality of light-emitting sub-pixels arranged in an array, the plurality of light-emitting sub-pixels comprising odd-numbered rows of first light-emitting sub-pixels of a first color and even-numbered rows of second light-emitting sub-pixels of the first color; A plurality of first data lines, wherein the first data lines are connected to the first light-emitting sub-pixels in the same column; A plurality of second data lines, wherein the second data lines are connected to the second light-emitting sub-pixels in the same column; In the picture detection stage, the first data line and the second data line are used to provide different data signals.

2. The display panel according to claim 1, characterized in that: In the picture detection stage, one of the first data line and the second data line provides a light-up data signal, and the other provides a black state data signal; The lighting data signal is used to light up the light-emitting sub-pixel, and the black state data signal is used to drive the light-emitting sub-pixel to maintain a dark state.

3. The display panel according to claim 2, characterized in that: The display panel further includes: A plurality of first scanning signal lines, wherein the first scanning signal lines are connected to the first light-emitting sub-pixels in the same row; A plurality of second scanning signal lines, wherein the second scanning signal lines are connected to the second light-emitting sub-pixels in the same row; In a single data frame, the adjacent first scanning signal line and the second scanning signal line are used to provide a first effective pulse and a second effective pulse respectively; The first effective pulse and the second effective pulse do not overlap, the first effective pulse is used to drive the first light-emitting sub-pixel in the same row; the second effective pulse is used to drive the second light-emitting sub-pixel in the same row.

4. The display panel according to claim 3, characterized in that: In the first effective pulse interval, the first data line provides the lighting data signal; in the second effective pulse interval, the second data line provides the black state data signal; or, In the second effective pulse interval, the second data line provides the lighting data signal; in the first effective pulse interval, the first data line provides the black state data signal.

5. The display panel according to claim 4, characterized in that: The plurality of light emitting sub-pixels further include a third light emitting sub-pixel of the second color and a fourth light emitting sub-pixel of the third color.

6. The display panel according to claim 5, characterized in that: The display panel further includes: A plurality of third scanning signal lines, wherein the third scanning signal lines are connected to the third light-emitting sub-pixels in odd-numbered rows and the fourth light-emitting sub-pixels in even-numbered rows in two adjacent rows; a plurality of fourth scanning signal lines, wherein the fourth scanning signal lines are connected to the third light-emitting sub-pixels in the even-numbered rows and the fourth light-emitting sub-pixels in the odd-numbered rows in two adjacent rows; Among them, the third scanning signal line is used to provide a third effective pulse, and the fourth scanning signal line is used to provide a fourth effective pulse; the third effective pulse is used to drive the third light-emitting sub-pixel in odd rows and the fourth light-emitting sub-pixel in even rows; the fourth effective pulse is used to drive the third light-emitting sub-pixel in even rows and the fourth light-emitting sub-pixel in odd rows.

7. The display panel according to claim 6, characterized in that: Among the third light-emitting sub-pixels in the same column, the third light-emitting sub-pixels in odd-numbered rows are connected to the corresponding first data lines, and the third light-emitting sub-pixels in even-numbered rows are connected to the corresponding second data lines; Among the fourth light-emitting sub-pixels in the same column, the fourth light-emitting sub-pixels in odd-numbered rows are connected to the corresponding first data lines, and the fourth light-emitting sub-pixels in even-numbered rows are connected to the corresponding second data lines.

8. The display panel according to claim 6, characterized in that: In a single data frame, the first scanning signal line, the fourth scanning signal line, the second scanning signal line and the third scanning signal line corresponding to two adjacent rows of pixels output valid pulses in sequence.

9. The display panel according to claim 6, characterized in that: In the picture detection stage, in the interval in which the third scanning signal line provides a third effective pulse, the first data line and the second data line output a black state voltage; In a period in which the fourth scan signal line provides a fourth effective pulse, the first data line and the second data line output a black state voltage.

10. The display panel according to claim 3, characterized in that: The display panel further includes: A plurality of multiplexing modules, wherein an input end of the multiplexing module is connected to a data signal end of a driving chip, and two output ends of the multiplexing module are respectively connected to the adjacent first data line and the second data line; The multiplexing module is used to provide a data signal to the first data line during a period when the first scanning signal line provides a first effective pulse; and to provide a data signal to the second data line during a period when the second scanning signal line provides a second effective pulse.

11. A display device, characterized in that: The invention comprises a display panel according to any one of claims 1 to 10.

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