Display device, control method of display device

Abstract

This application provides a display device and a control method for the display device. The display device includes a display panel and a driving circuit. The driving circuit is electrically connected to a first common electrode through a first output terminal, to a second common electrode through a second output terminal, to a first target common electrode through a first feedback terminal, and to the second target common electrode through a second feedback terminal. The driving circuit outputs a first common voltage to the first common electrode and a second common voltage to the second common electrode, acquires a first feedback voltage of the first target common electrode and a second feedback voltage of the second target common electrode, and adjusts the output first common voltage and / or second common voltage based on the current first feedback voltage and the current second feedback voltage, such that the voltage difference between the first feedback voltage and the second feedback voltage is less than or equal to a preset threshold. The display device can eliminate the vertical stripe problem of U-Type pixel architecture display panels.

Description

Technical Field

[0001] This application relates to the field of display panel technology, and more particularly to a display device and a control method for the display device. Background Technology

[0002] In recent years, with the continuous development of display technology, the industry has developed the U-Type pixel architecture to effectively reduce the manufacturing cost of displays. This architecture uses a design where two rows of scan lines control one row of pixels, halving the number of data lines while doubling the number of scan lines. The increased scan lines can be driven by integrating GOA (Gate on Array) circuitry on the array side using the Gate Less mechanism, thereby significantly reducing the number of source driver chips (Source ICs) and lowering the overall cost.

[0003] However, in practical applications, U-Type pixel architecture display panels generally suffer from poor vertical stripe display. Specifically, when the screen displays images, vertical stripes appear randomly or regularly, severely damaging the integrity of the image, interfering with the presentation of image details, and causing unnatural color transitions, ultimately affecting the user's visual experience.

[0004] Therefore, there is an urgent need for a new display device that can suppress vertical lines and improve display uniformity. Summary of the Invention

[0005] In view of this, the main objective of this application is to propose a display device and a control method for the display device, which aims to solve the problem of vertical stripes in existing U-Type pixel architecture display panels.

[0006] To achieve the above objectives, a first aspect of this application provides a display device, comprising a display panel and a driving circuit; the display panel includes a plurality of pixel rows, a plurality of data line groups, and a plurality of scan line groups. The plurality of pixel rows are arranged along a column direction, each pixel row including a plurality of sub-pixels arranged along the row direction, the plurality of sub-pixels including a first sub-pixel and a second sub-pixel; each first sub-pixel includes a first common electrode, and each second sub-pixel includes a second common electrode; each data line group includes a first data line and a second data line; wherein, the first data line in each data line group is electrically connected to a corresponding column of first sub-pixels; the second data line in each data line group is electrically connected to the first data line and to a corresponding column of second sub-pixels; each scan line group includes a first scan line and a second scan line, the first scan line and the second scan line in each scan line group being spaced apart on one side of a corresponding pixel row, and the first scan line in each scan line group being located between the second scan line and the corresponding pixel row, the first scan line in each scan line group being electrically connected to all first sub-pixels in the corresponding pixel row, and the second scan line in each scan line group being electrically connected to all first sub-pixels in the corresponding pixel row. The tracing line is electrically connected to all second sub-pixels in the corresponding pixel row; the driving circuit includes a first output terminal, a second output terminal, a first feedback terminal, and a second feedback terminal; wherein, the first output terminal is electrically connected to the first common electrode, and the second output terminal is electrically connected to the second common electrode; the first feedback terminal is electrically connected to the first target common electrode in the first common electrode; the second feedback terminal is electrically connected to the second target common electrode in the second common electrode; wherein, the driving circuit is used to output a first common voltage to the first common electrode, output a second common voltage to the second common electrode, and acquire the first feedback voltage of the first target common electrode, acquire the second feedback voltage of the second target common electrode, and adjust the output first common voltage and / or second common voltage based on the current first feedback voltage and the current second feedback voltage, such that the voltage difference between the first feedback voltage and the second feedback voltage is less than or equal to a preset threshold.

[0007] The display device provided in this application outputs a first common voltage to the first common electrode of the first sub-pixel via a first output terminal of a driving circuit, and outputs a second common voltage to the second common electrode of the second sub-pixel via a second output terminal. It receives a first feedback voltage from the first target common electrode via a first feedback terminal, and a second feedback voltage from the second target common electrode via a second feedback terminal. Based on the current first and second feedback voltages, it adjusts the output first and / or second common voltages, ensuring that the voltage difference between the first and second feedback voltages is less than or equal to a preset threshold. This compensates for the difference in coupling between the scan lines and the first and second common electrodes, prevents a large brightness difference between the first and second sub-pixels due to excessive common voltage differences, and eliminates the vertical stripe problem in U-Type pixel architecture display panels.

[0008] In some embodiments of this application, the driving circuit is configured to maintain the output of the current first common voltage and the current second common voltage when the voltage difference between the current first feedback voltage and the current second feedback voltage is less than or equal to the preset threshold, and to adjust the output of the first common voltage and / or the second common voltage when the voltage difference between the current first feedback voltage and the current second feedback voltage is greater than the preset threshold, so that the voltage difference between the first feedback voltage and the second feedback voltage is less than or equal to the preset threshold.

[0009] In some embodiments of this application, the driving circuit is used to determine a target voltage based on the average value of the current first feedback voltage and the current second feedback voltage when the voltage difference between the current first feedback voltage and the current second feedback voltage is greater than the preset threshold, and to output a second common voltage to the second common electrode with a voltage value equal to the target voltage.

[0010] In some embodiments of this application, the driving circuit is used to compensate the currently output second common voltage according to the voltage difference between the current first feedback voltage and the current second feedback voltage to obtain a target voltage when the voltage difference between the current first feedback voltage and the current second feedback voltage is greater than the preset threshold, and to output a second common voltage with a voltage value equal to the target voltage to the second common electrode.

[0011] In some embodiments of this application, the display panel further includes: Multiple first common electrode lines extend along the row direction and are spaced apart along the column direction. Each first common electrode line is electrically connected to the first common electrode in the first sub-pixel of the corresponding pixel row and is also electrically connected to the first output terminal of the driving circuit. Multiple second common electrode lines extend along the row direction and are spaced apart along the column direction. Each second common electrode line is electrically connected to the second common electrode in the second sub-pixel in the corresponding pixel row and is also electrically connected to the second output terminal of the driving circuit. The first common electrode line and the second common electrode line are isolated from each other.

[0012] In some embodiments of this application, the display panel further includes multiple third common electrode lines and multiple fourth common electrode lines. The multiple third common electrode lines extend along the column direction and are spaced apart along the row direction. Each third common electrode line is electrically connected to a first common electrode in a corresponding column of first sub-pixels and is also electrically connected to a first output terminal of the driving circuit. The multiple fourth common electrode lines extend along the column direction and are spaced apart along the row direction. Each fourth common electrode line is electrically connected to a second common electrode in a corresponding column of second sub-pixels and is also electrically connected to a second output terminal of the driving circuit. The third common electrode lines and the fourth common electrode lines are isolated from each other.

[0013] In some embodiments of this application, the first target common electrode is the first common electrode of the first sub-pixel in the first pixel row, and the second target common electrode is the second common electrode of the second sub-pixel in the first pixel row.

[0014] A second aspect of this application also provides a control method for a display device, the control method being used to control the display device as described in the first aspect above to perform a display, the control method comprising: outputting a first common voltage to a first common electrode and outputting a second common voltage to a second common electrode; acquiring a first feedback voltage of a first target common electrode and acquiring a second feedback voltage of a second target common electrode; and adjusting the output first common voltage and / or the second common voltage based on the current first feedback voltage and the current second feedback voltage, such that the voltage difference between the first feedback voltage and the second feedback voltage is less than or equal to a preset threshold.

[0015] In some embodiments of this application, adjusting the output first common voltage and / or second common voltage based on the current first feedback voltage and the current second feedback voltage, such that the voltage difference between the first feedback voltage and the second feedback voltage is less than or equal to a preset threshold, includes: maintaining the output first common voltage and the current second common voltage when the voltage difference between the current first feedback voltage and the current second feedback voltage is less than or equal to the preset threshold; and adjusting the output first common voltage and / or second common voltage according to the current first feedback voltage and the current second feedback voltage when the voltage difference between the current first feedback voltage and the current second feedback voltage is greater than the preset threshold, such that the voltage difference between the first feedback voltage and the second feedback voltage is less than or equal to the preset threshold.

[0016] In some embodiments of this application, adjusting the output first common voltage and / or second common voltage according to the current first feedback voltage and the current second feedback voltage includes: determining a target voltage based on the average value of the current first feedback voltage and the current second feedback voltage; and outputting a second common voltage to the second common electrode with a voltage value equal to the target voltage.

[0017] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0018] Figure 1 A schematic diagram of the pixel structure of a display panel with a U-Type pixel architecture provided in an embodiment of this application; Figure 2 A schematic diagram of a first common electrode line structure for a display panel with a U-Type pixel architecture provided in an embodiment of this application; Figure 3 A schematic diagram of a second common electrode line structure for a display panel with a U-Type pixel architecture provided in an embodiment of this application; Figure 4 A schematic diagram of a third common electrode line structure for a display panel with a U-Type pixel architecture provided in an embodiment of this application; Figure 5 A flowchart of a control method for a display device provided in an embodiment of this application.

[0019] The annotations in the attached figures are explained as follows: 100 - Display device; 10 - Display panel; 20 - Driving circuit; P1 - First sub-pixel; P2 - Second sub-pixel; 101 - Pixel row; 102 - Scan line group; 103 - Data line group; 1 - First common electrode; 2 - Second common electrode; 21 - First output terminal; 22 - Second output terminal; 23 - First feedback terminal; 24 - Second feedback terminal; AVCOM1 - First common voltage; AVCOM2 - Second common voltage; AVCOM1_FB - First feedback voltage; AVCOM2_FB - Second feedback voltage; 11 - First common electrode line; 12 - Second common electrode line; 13 - Third common electrode line; 14 - Fourth common electrode line; G1 - First row scan line; G2 - Second row scan line; G3 - Third row scan line; G4 - Fourth row scan line; G5 - Fifth row scan line; G6 - Sixth row scan line; D1 - First column data line; D2 - Second column data line; D3 - Third column data line; D4 - Fourth column data line; D5 - Fifth column data line; D6 - Sixth column data line; D7 - Seventh column data line; D8 - Eighth column data line; D9 - Ninth column data line; D10 - Tenth column data line; D11 - Eleventh column data line; D12 - Twelfth column data line.

[0020] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0022] Furthermore, the terms "first," "second," etc., used in this specification are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Additionally, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0023] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0024] Please see Figure 1 , Figure 1 This is a schematic diagram of the pixel structure of a display panel with a U-Type pixel architecture provided in an embodiment of this application.

[0025] like Figure 1 As shown, the U-Type pixel architecture display panel 10 includes multiple pixel rows 101, multiple data line groups 103, and multiple scan line groups 102.

[0026] The plurality of pixel rows 101 are arranged along the column direction, and each pixel row 101 includes a plurality of sub-pixels arranged along the row direction. All sub-pixels are distributed in a multi-row, multi-column array. The plurality of sub-pixels include a first sub-pixel P1 and a second sub-pixel P2.

[0027] For example, such as Figure 1 As shown, sub-pixels in columns 1-6 are the first sub-pixel P1, and sub-pixels in columns 7-12 are the second sub-pixels P2. Each first sub-pixel P1 and each second sub-pixel P2 includes a common electrode (not shown in the figure).

[0028] Each scan line group 102 includes a first scan line and a second scan line, and each scan line group 102 corresponds to a pixel row 101. The first scan line and the second scan line in each scan line group 102 are spaced apart on one side of the corresponding pixel row 101, and the first scan line in each scan line group 102 is located between the second scan line in the same scan line group 102 and the corresponding pixel row 101.

[0029] For example, such as Figure 1 As shown, odd-numbered scan lines are the first scan lines, and even-numbered scan lines are the second scan lines. The first scan line group 102 consists of the first scan line group G1 and the second scan line G2, which corresponds to the first pixel row 101. The first scan line G1 is located below the first pixel row 101, and the second scan line G2 is located below the first scan line. The second scan line group 102 consists of the third scan line group G3 and the fourth scan line G4, which corresponds to the second pixel row 101. The third scan line G3 is located below the second pixel row 101, and the fourth scan line G4 is located below the third scan line G3, and so on.

[0030] Each data line group 103 includes a first data line and a second data line. Each first data line corresponds to a corresponding column of first sub-pixels P1, and each second data line corresponds to a corresponding column of second sub-pixels P2. The first data line in each group is electrically connected to the corresponding column of first sub-pixels P1 and is positioned close to the corresponding column of first sub-pixels P1. The second data line in each data line group 103 is electrically connected to the first data line in the same data line group 103 and is also electrically connected to a corresponding column of second sub-pixels P2, positioned close to the corresponding column of second sub-pixels P2.

[0031] For example, such as Figure 1 As shown, data lines D1 to D6 in columns 1 to 6 are the first data lines, and data lines D7 to D12 in columns 7 to 12 are the second data lines. Data lines D1 and D7 in columns 1 and 7 form the first data line group 103, which resembles the letter "U", hence the name U-type pixel architecture. Data lines D2 and D8 in columns 2 and 8 form the second data line group 103, and so on.

[0032] It is easy to see that the U-Type pixel architecture controls one row of pixels through two rows of scan lines. This halves the number of data lines and doubles the number of scan lines. The additional scan lines can be implemented by designing GOA circuits on the side through the gate-less mechanism, which saves the cost of source IC.

[0033] However, in practical applications, U-Type pixel architecture display panels generally suffer from poor vertical stripe display. Specifically, when the screen displays images, vertical stripes appear randomly or regularly, severely damaging the integrity of the image, interfering with the presentation of image details, and causing unnatural color transitions, ultimately affecting the user's visual experience.

[0034] Therefore, there is an urgent need for a new display device that can suppress vertical lines and improve display uniformity.

[0035] Research has revealed the following reasons for the vertical stripe display problem in U-Type pixel architecture display panels: For the first pixel row 101, the first sub-pixel P1 is electrically connected to the corresponding first scan line (i.e., scan line G1), and the second sub-pixel P2 is adjacent to scan line G1. Therefore, parasitic capacitance exists between the common electrode of the first sub-pixel P1 and the common electrode of the second sub-pixel P2 in the first pixel row 101 and scan line G1. The second sub-pixel P2 is electrically connected to the corresponding second scan line (i.e., scan line G2). Therefore, parasitic capacitance exists between the common electrode of the second sub-pixel P2 in the first pixel row 101 and scan line G2. Since the first sub-pixel P1 in the first pixel row 101 is separated from scan line G2 by scan line G1, there is no parasitic capacitance between the first sub-pixel P1 in the first pixel row 101 and scan line G2.

[0036] During operation, when scan line G1 is on (i.e., the scan signal is high) and has fully charged the first sub-pixel P1 in the first pixel row 101, when scan line G1 is off (i.e., the scan signal transitions from high to low), scan line G1 couples the voltage of the common electrode of the first sub-pixel P1 and the second sub-pixel P2 in the first pixel row 101 downwards through parasitic capacitance coupling. When scan line G2 is on and has fully charged the second sub-pixel P2 in the first pixel row 101, when scan line G2 is off, scan line G2 couples the voltage of the common electrode of the second sub-pixel P2 in the first pixel row 101 downwards through parasitic capacitance coupling. However, since there is no parasitic capacitance between scan line G2 and the first sub-pixel P1 in the first pixel row 101, and scan line G1 is already at a low level at this time, scan line G2 cannot cross scan line G1 to couple the voltage of the common electrode of the first sub-pixel P1. In other words, the first sub-pixel P1 in the first pixel row 101 is coupled downwards only once by scan line G1, while the second sub-pixel P2 in the first pixel row 101 is coupled downwards not only once by scan line G1 but also once by scan line G2. This results in the voltage of the common electrode in the second sub-pixel P2 being lower than the voltage of the common electrode in the first sub-pixel P1. Subsequent pixel rows 101 follow the same pattern as the first pixel row 101. Therefore, the degree to which the common electrodes of the first sub-pixel P1 and the second sub-pixel P2 in each row are coupled is inconsistent, thus appearing as vertical stripes on a macroscopic scale.

[0037] In view of this, in order to solve the problem of vertical stripes in existing U-Type pixel architecture display panels, this application provides a display device 100. Please refer to the following: Figure 1 and Figure 2 , Figure 2This is a schematic diagram of the first common electrode line structure of the display panel with the U-Type pixel architecture provided in the embodiments of this application.

[0038] The display device 100 includes a display panel 10 and a driving circuit 20.

[0039] like Figure 1 As shown, the display panel 10 includes multiple pixel rows 101, multiple scan line groups 102, and multiple data line groups 103.

[0040] The plurality of pixel rows 101 are arranged along the column direction. Each pixel row 101 includes a plurality of sub-pixels arranged along the row direction. All sub-pixels are distributed in a multi-row, multi-column array. The plurality of sub-pixels include a first sub-pixel P1 and a second sub-pixel P2. All sub-pixels in each column are of the same type, that is, they are either all first sub-pixels P1 or all second sub-pixels P2.

[0041] Each data line group 103 includes a first data line and a second data line. The first data line in each data line group 103 is electrically connected to a corresponding column of first sub-pixels P1 and is positioned close to the corresponding column of first sub-pixels P1. The second data line in each data line group 103 is electrically connected to the first data line and to a corresponding column of second sub-pixels P2.

[0042] Each scan line group 102 includes a first scan line and a second scan line. The first scan line and the second scan line in each scan line group 102 are spaced apart on one side of the corresponding pixel row 101. The first scan line in each scan line group 102 is located between the second scan line and the corresponding pixel row 101. The first scan line in each scan line group 102 is electrically connected to all first sub-pixels P1 in the corresponding pixel row 101. The second scan line in each scan line group 102 is electrically connected to all second sub-pixels P2 in the corresponding pixel row 101.

[0043] like Figure 2 As shown, each of the first sub-pixels P1 includes a first common electrode 1, and each of the second sub-pixels P2 includes a second common electrode 2.

[0044] The driving circuit 20 includes a first output terminal 21, a second output terminal 22, a first feedback terminal 23, and a second feedback terminal 24. The first output terminal 21 is electrically connected to all the first common electrodes 1, and the second output terminal 22 is electrically connected to all the second common electrodes 2. The first feedback terminal 23 is electrically connected to the first target common electrode among the first common electrodes 1. The second feedback terminal 24 is electrically connected to the second target common electrode among the second common electrodes 2.

[0045] The driving circuit 20 is configured to output a first common voltage AVCOM1 to all first common electrodes 1 through the first output terminal 21, output a second common voltage AVCOM2 to all second common electrodes 2 through the second output terminal 22, obtain a first feedback voltage AVCOM1_FB by detecting the voltage of the first target common electrode through the first feedback terminal 23, obtain a second feedback voltage AVCOM2_FB by detecting the voltage of the second target common electrode through the second feedback terminal 24, and adjust the output first common voltage AVCOM1 and / or second common voltage AVCOM2 based on the current first feedback voltage and the current second feedback voltage, such that the voltage difference between the first feedback voltage and the second feedback voltage is less than or equal to a preset threshold.

[0046] The display device 100 provided in this application embodiment outputs a first common voltage AVCOM1 to the first common electrode 1 of the first sub-pixel P1 via a first output terminal 21 through a driving circuit 20, and outputs a second common voltage AVCOM2 to the second common electrode 2 of the second sub-pixel P2 via a second output terminal 22. It receives a first feedback voltage AVCOM1_FB from the first target common electrode via a first feedback terminal 23, and a second feedback voltage AVCOM2_FB from the second target common electrode via a second feedback terminal 24. Based on the current first feedback voltage and the current second feedback voltage, it adjusts the output first common voltage AVCOM1 and / or the second common voltage AVCOM2, so that the voltage difference between the first feedback voltage AVCOM1_FB and the second feedback voltage AVCOM2_FB is less than or equal to a preset threshold. This compensates for the difference in the coupling amount between the scan lines and the first common electrode 1 and the second common electrode 2, prevents a large brightness difference between the first sub-pixel P1 and the second sub-pixel P2 due to an excessively large difference in common voltage, and eliminates the vertical stripe problem of the U-Type pixel architecture display panel.

[0047] In some embodiments of this application, the driving circuit 20 is configured to maintain the output of the current first common voltage AVCOM1 and the current second common voltage AVCOM2 when the voltage difference between the current first feedback voltage and the current second feedback voltage is less than or equal to the preset threshold, and to adjust the output of the first common voltage AVCOM1 and / or the second common voltage AVCOM2 when the voltage difference between the current first feedback voltage and the current second feedback voltage is greater than the preset threshold, so that the voltage difference between the first feedback voltage and the second feedback voltage is less than or equal to the preset threshold.

[0048] The preset threshold is greater than zero and can be determined experimentally, as long as it can prevent vertical lines from appearing on the display panel 10.

[0049] Thus, the adjustment strategy is only activated to regulate the first common voltage AVCOM1 and / or the second common voltage AVCOM2 when the voltage difference between the current first feedback voltage and the current second feedback voltage is greater than the preset threshold. This reduces the frequency of voltage regulation, thereby reducing energy consumption and saving system resources.

[0050] In some embodiments of this application, the driving circuit 20 is used to determine a target voltage based on the average value of the current first feedback voltage and the current second feedback voltage when the voltage difference between the current first feedback voltage and the current second feedback voltage is greater than the preset threshold, and to maintain the current first common voltage AVCOM1 output to the first common electrode 1, and to output a second common voltage AVCOM2 with a voltage value equal to the target voltage to the second common electrode 2.

[0051] For example, the average value of the current first feedback voltage and the current second feedback voltage can be directly determined as the target voltage, that is, the logic value of the second common voltage AVCOM2 can be modified to (AVCOM1_FB+AVCOM2_FB) / 2, or the logic value of the second common voltage AVCOM2 can be modified to (AVCOM1_FB+AVCOM2_FB) / 2+1, which is not limited here.

[0052] In this way, by calculating the target voltage using the binary search method and adjusting the second common voltage AVCOM2, the adjustment range can be continuously halved, gradually converging to the vicinity of the optimal value in very few steps. This avoids large-scale blind trial and error and also prevents overcompensation or undercompensation.

[0053] In some embodiments of this application, the driving circuit 20 may also determine the target voltage based on the average value of the current first feedback voltage and the current second feedback voltage when the voltage difference between the current first feedback voltage and the current second feedback voltage is greater than the preset threshold, and output a first common voltage AVCOM1 with a voltage value equal to the target voltage to the first common electrode 1, and maintain the output of the current second common voltage AVCOM2 to the second common electrode 2.

[0054] In some embodiments of this application, the driving circuit 20 is used to compensate the currently output second common voltage according to the voltage difference between the current first feedback voltage and the current second feedback voltage to obtain a target voltage when the voltage difference between the current first feedback voltage and the current second feedback voltage is greater than the preset threshold, and to maintain the current first common voltage AVCOM1 output to the first common electrode 1, and output a second common voltage AVCOM2 with a voltage value equal to the target voltage to the second common electrode 2.

[0055] For example, the voltage difference can be defined as V, the target voltage is defined as V0, and the voltage value of the second common voltage currently output by the drive circuit 20 is defined as AVCOM2_1. The target voltage can be determined according to the following formula: V = AVCOM1_FB - AVCOM2_FB; V0= V+AVCOM2_1.

[0056] In some embodiments of this application, the driving circuit 20 may also, when the voltage difference between the current first feedback voltage and the current second feedback voltage is greater than the preset threshold, compensate the current output first common voltage to obtain the target voltage based on the voltage difference between the current first feedback voltage and the current second feedback voltage, maintain the current second common voltage AVCOM2 output to the second common electrode 2, and output a first common voltage AVCOM1 with a voltage value equal to the target voltage to the first common electrode 1.

[0057] For example, the voltage difference can be defined as V, the target voltage is defined as V0, and the voltage value of the first common voltage currently output by the drive circuit 20 is defined as AVCOM1_1. The target voltage can be determined according to the following formula: V = AVCOM1_FB - AVCOM2_FB; V0=AVCOM1_1- V.

[0058] In some embodiments of this application, the driving circuit 20 may also compensate the currently output first common voltage and the currently output second common voltage according to the voltage difference between the current first feedback voltage and the current second feedback voltage when the voltage difference between the current first feedback voltage and the current second feedback voltage is greater than the preset threshold, to obtain a first target voltage and a second target voltage, and output a first common voltage AVCOM1 with a voltage value equal to the first target voltage to the first common electrode 1, and output a second common voltage AVCOM2 with a voltage value equal to the second target voltage to the second common electrode 2.

[0059] For example, the voltage difference can be defined as V, defining the first target voltage as V1, defining the second target voltage as V2, defining the voltage value of the first common voltage currently output by the driving circuit 20 as AVCOM1_1, and the voltage value of the second common voltage currently output as AVCOM2_1, the target voltage can be determined according to the following formula: V = AVCOM1_FB - AVCOM2_FB; V1=AVCOM2_1- V / 2; V2= V / 2+AVCOM2_1.

[0060] like Figure 2 As shown, in some embodiments of this application, the display panel 10 further includes a plurality of first common electrode lines 11 and a plurality of second common electrode lines 12. The first common electrode lines 11 and the second common electrode lines 12 are isolated from each other.

[0061] The plurality of first common electrode lines 11 correspond one-to-one with the plurality of pixel rows 101. The plurality of first common electrode lines 11 extend along the row direction and are arranged at intervals along the column direction. Each first common electrode line 11 is electrically connected to the first common electrode 1 in the first sub-pixel P1 in the corresponding pixel row 101 and is electrically connected to the first output terminal 21 of the driving circuit 20.

[0062] The plurality of second common electrode lines 12 correspond one-to-one with the plurality of pixel rows 101. The plurality of second common electrode lines 12 extend along the row direction and are arranged at intervals along the column direction. Each second common electrode line 12 is electrically connected to the second common electrode 2 in the second sub-pixel P2 in the corresponding pixel row 101 and is electrically connected to the second output terminal 22 of the driving circuit 20.

[0063] Thus, the first output terminal 21 of the driving circuit 20 can be electrically connected to the first common electrode 1 in all the first sub-pixels P1 through the plurality of first common electrode lines 11, and the second output terminal 22 of the driving circuit 20 can be electrically connected to the second common electrode 2 in all the second sub-pixels P2 through the plurality of second common electrode lines 12.

[0064] like Figure 3 As shown, in some embodiments of this application, the display panel 10 further includes multiple third common electrode lines 13 and multiple fourth common electrode lines 14. The third common electrode lines 13 and the fourth common electrode lines 14 are isolated from each other.

[0065] The plurality of third common electrode lines 13 extend along the column direction and are arranged at intervals along the row direction. Each of the third common electrode lines 13 is electrically connected to the first common electrode 1 in the corresponding column of first sub-pixels P1, and is electrically connected to the first output terminal 21 of the driving circuit 20.

[0066] The plurality of fourth common electrode lines 14 extend along the column direction and are arranged at intervals along the row direction. Each of the fourth common electrode lines 14 is electrically connected to the second common electrode 2 in the corresponding column of second sub-pixels P2, and is electrically connected to the second output terminal 22 of the driving circuit 20.

[0067] Thus, the first output terminal 21 of the driving circuit 20 can be electrically connected to the first common electrode 1 in all the first sub-pixels P1 through the plurality of third common electrode lines 13, and the second output terminal 22 of the driving circuit 20 can be electrically connected to the second common electrode 2 in all the second sub-pixels P2 through the plurality of fourth common electrode lines 14.

[0068] like Figure 4 As shown, in some embodiments of this application, the display panel 10 further includes multiple first common electrode lines 11, multiple second common electrode lines 12, multiple third common electrode lines 13, and multiple fourth common electrode lines 14.

[0069] The plurality of first common electrode lines 11 and the plurality of third common electrode lines 13 are electrically connected to form a first electrode line grid to transmit a first common voltage AVCOM1. The plurality of second common electrode lines 12 and the plurality of fourth common electrode lines 14 are electrically connected to form a second electrode line grid to transmit a second common voltage AVCOM2.

[0070] In this way, the path resistance of the transmission path of the first common voltage AVCOM1 and the second common voltage AVCOM2 can be significantly reduced, enabling the first common voltage AVCOM1 to be transmitted quickly and evenly to each first sub-pixel P1, and the second common voltage AVCOM2 to be transmitted quickly and evenly to each second sub-pixel P2.

[0071] In some embodiments of this application, the first target common electrode is the first common electrode 1 of the first sub-pixel P1 in the first pixel row 101, and the second target common electrode is the second common electrode 2 of the second sub-pixel P2 in the first pixel row 101.

[0072] The number of the first target common electrode and the second target common electrode can be one or more. When the number of the first target common electrode is multiple, the driving circuit 20 can use the average value of the voltages of the multiple first target common electrodes as the first feedback voltage AVCOM1_FB.

[0073] In this way, acquiring the voltage of the common electrode in the first pixel row 101 acts as an "early warning signal," allowing the driving circuit 20 to determine the potential voltage shift trend of the entire frame as early as possible, and providing sufficient calculation and time window for subsequent compensation adjustments, thus enabling rapid response.

[0074] Please see Figure 5 , Figure 5 A flowchart illustrating a control method for a display device provided in an embodiment of this application. Based on the same concept, an embodiment of this application also provides a control method for a display device, which is used to control the display device 100 described in any of the preceding embodiments to perform a display.

[0075] like Figure 5 As shown, the control method includes: Step S1: Output a first common voltage AVCOM1 to the first common electrode 1 and output a second common voltage AVCOM2 to the second common electrode 2; Step S2: Obtain the first feedback voltage AVCOM1_FB of the first target common electrode and the second feedback voltage AVCOM2_FB of the second target common electrode; Step S3: Based on the current first feedback voltage and the current second feedback voltage, adjust the output first common voltage AVCOM1 and / or the second common voltage AVCOM2 so that the voltage difference between the first feedback voltage and the second feedback voltage is less than or equal to a preset threshold.

[0076] In some embodiments of this application, adjusting the output first common voltage AVCOM1 and / or second common voltage AVCOM2 based on the current first feedback voltage and the current second feedback voltage, such that the voltage difference between the first feedback voltage and the second feedback voltage is less than or equal to a preset threshold, includes: When the voltage difference between the current first feedback voltage and the current second feedback voltage is less than or equal to the preset threshold, maintain the output of the current first common voltage AVCOM1 and the current second common voltage AVCOM2. When the voltage difference between the current first feedback voltage and the current second feedback voltage is greater than the preset threshold, the output first common voltage AVCOM1 and / or the second common voltage AVCOM2 are adjusted according to the current first feedback voltage and the current second feedback voltage, so that the voltage difference between the first feedback voltage and the second feedback voltage is less than or equal to the preset threshold.

[0077] In some embodiments of this application, adjusting the output first common voltage AVCOM1 and / or second common voltage AVCOM2 based on the current first feedback voltage and the current second feedback voltage includes: The target voltage is determined based on the average of the current first feedback voltage and the current second feedback voltage; A second common voltage AVCOM2, with a voltage value equal to the target voltage, is output to the second common electrode 2.

[0078] In some embodiments of this application, the adjustment of the first common voltage AVCOM1 and / or the second common voltage AVCOM2 includes: The target voltage is obtained by compensating the current output first common voltage based on the voltage difference between the current first feedback voltage and the current second feedback voltage; A second common voltage AVCOM2, with a voltage value equal to the target voltage, is output to the second common electrode 2.

[0079] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be embraced within this application. No reference numerals in the claims should be construed as limiting the scope of the claims. Furthermore, it is clear that the word "comprising" does not exclude other units or steps, and the singular does not exclude the plural. Multiple units or devices recited in the apparatus claims may also be implemented by the same unit or device in software or hardware.

[0080] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A display device, characterized in that, The display device includes a display panel and a driving circuit; The display panel includes: Multiple pixel rows are arranged along the column direction, and each pixel row includes multiple sub-pixels arranged along the row direction. The multiple sub-pixels include a first sub-pixel and a second sub-pixel. Each first sub-pixel includes a first common electrode, and each second sub-pixel includes a second common electrode. Multiple data line groups, each data line group including a first data line and a second data line; wherein, the first data line in each data line group is electrically connected to a corresponding column of first sub-pixels; the second data line in each data line group is electrically connected to the first data line and electrically connected to a corresponding column of second sub-pixels; and Multiple scan line groups, each scan line group including a first scan line and a second scan line, the first scan line and the second scan line in each scan line group are spaced apart on one side of the corresponding pixel row, and the first scan line in each scan line group is located between the second scan line and the corresponding pixel row, the first scan line in each scan line group is electrically connected to all first sub-pixels in the corresponding pixel row, and the second scan line in each scan line group is electrically connected to all second sub-pixels in the corresponding pixel row; The driving circuit includes a first output terminal, a second output terminal, a first feedback terminal, and a second feedback terminal; wherein, the first output terminal is electrically connected to the first common electrode, the second output terminal is electrically connected to the second common electrode, the first feedback terminal is electrically connected to the first target common electrode in the first common electrode, and the second feedback terminal is electrically connected to the second target common electrode in the second common electrode. The driving circuit is configured to output a first common voltage to the first common electrode, output a second common voltage to the second common electrode, acquire a first feedback voltage of the first target common electrode, acquire a second feedback voltage of the second target common electrode, and adjust the output first common voltage and / or second common voltage based on the current first feedback voltage and the current second feedback voltage, such that the voltage difference between the first feedback voltage and the second feedback voltage is less than or equal to a preset threshold.

2. The display device as claimed in claim 1, characterized in that, The driving circuit is configured to maintain the output of the current first common voltage and the current second common voltage when the voltage difference between the current first feedback voltage and the current second feedback voltage is less than or equal to the preset threshold, and to adjust the output of the first common voltage and / or the second common voltage when the voltage difference between the current first feedback voltage and the current second feedback voltage is greater than the preset threshold, so that the voltage difference between the first feedback voltage and the second feedback voltage is less than or equal to the preset threshold.

3. The display device as claimed in claim 2, characterized in that, The driving circuit is used to determine a target voltage based on the average value of the current first feedback voltage and the current second feedback voltage when the voltage difference between the current first feedback voltage and the current second feedback voltage is greater than the preset threshold, and to output a second common voltage to the second common electrode with a voltage value equal to the target voltage.

4. The display device as claimed in claim 2, characterized in that, The driving circuit is used to compensate the currently output second common voltage according to the voltage difference between the current first feedback voltage and the current second feedback voltage to obtain a target voltage when the voltage difference between the current first feedback voltage and the current second feedback voltage is greater than the preset threshold, and to output a second common voltage with a voltage value equal to the target voltage to the second common electrode.

5. The display device as claimed in claim 2, characterized in that, The display panel also includes: Multiple first common electrode lines extend along the row direction and are spaced apart along the column direction. Each first common electrode line is electrically connected to the first common electrode in the first sub-pixel of the corresponding pixel row and is also electrically connected to the first output terminal of the driving circuit. Multiple second common electrode lines extend along the row direction and are spaced apart along the column direction. Each second common electrode line is electrically connected to the second common electrode in the second sub-pixel in the corresponding pixel row and is also electrically connected to the second output terminal of the driving circuit. The first common electrode line and the second common electrode line are isolated from each other.

6. The display device as claimed in claim 2, characterized in that, The display panel also includes: Multiple third common electrode lines extend along the column direction and are spaced apart along the row direction. Each of the third common electrode lines is electrically connected to the first common electrode in a corresponding column of first sub-pixels and is also electrically connected to the first output terminal of the driving circuit; and Multiple fourth common electrode lines extend along the column direction and are spaced apart along the row direction. Each of the fourth common electrode lines is electrically connected to the second common electrode in the corresponding column of second sub-pixels and is also electrically connected to the second output terminal of the driving circuit. The third common electrode line and the fourth common electrode line are isolated from each other.

7. The display device as claimed in claim 2, characterized in that, The first target common electrode is the first common electrode of the first sub-pixel in the first pixel row, and the second target common electrode is the second common electrode of the second sub-pixel in the first pixel row.

8. A control method for a display device, characterized in that, The control method is used to control the display device as described in any one of claims 1 to 7 to perform a display, the control method comprising: A first common voltage is output to the first common electrode, and a second common voltage is output to the second common electrode; Obtain the first feedback voltage of the first target common electrode, and obtain the second feedback voltage of the second target common electrode; and Based on the current first feedback voltage and the current second feedback voltage, adjust the output first common voltage and / or second common voltage so that the voltage difference between the first feedback voltage and the second feedback voltage is less than or equal to a preset threshold.

9. The control method for the display device as described in claim 8, characterized in that, The step of adjusting the output first common voltage and / or second common voltage based on the current first feedback voltage and the current second feedback voltage, such that the voltage difference between the first feedback voltage and the second feedback voltage is less than or equal to a preset threshold, includes: When the voltage difference between the current first feedback voltage and the current second feedback voltage is less than or equal to the preset threshold, the current first common voltage and the current second common voltage are maintained in the output; and When the voltage difference between the current first feedback voltage and the current second feedback voltage is greater than the preset threshold, the output first common voltage and / or second common voltage are adjusted according to the current first feedback voltage and the current second feedback voltage, so that the voltage difference between the first feedback voltage and the second feedback voltage is less than or equal to the preset threshold.

10. The control method for the display device as described in claim 9, characterized in that, The step of adjusting the output first common voltage and / or second common voltage based on the current first feedback voltage and the current second feedback voltage includes: The target voltage is determined based on the average of the current first feedback voltage and the current second feedback voltage; and A second common voltage, with a voltage value equal to the target voltage, is output to the second common electrode.

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