Display module, its control device and method, display device, and storage medium

Abstract

The present application discloses a display module, its control device and method, a display device, and a storage medium. The display module includes multiple groups of gate lines, multiple groups of data lines, and pixel units arranged in an array. Each group of gate lines includes a first gate line and a second gate line. The first gate line and the second gate line in each group of gate lines are respectively connected to pixel units in adjacent rows. Each group of data lines includes a first data line and a second data line. The control device of the display module includes: a first control module for sending a first data signal to the first data line when the first gate line receives a signal; a second control module for sending a second data signal to the second data line when the second gate line receives a signal, wherein the potential of the second data signal is higher than the potential of the first data signal. In this way, the high potential of the second data signal can increase the brightness of the pixel units in the second row to avoid the appearance of fine horizontal stripes with alternating light and dark, and improve the display effect of the display module.

Description

Technical Field

[0001] The present application relates to the field of display technologies, and particularly to a display module, a control device and method thereof, a display device, and a storage medium. Background Art

[0002] Currently, in the OLED panel manufacturing industry, each screen is composed of millions of small pixel circuits. One emission control drive (EM) of the gate driver on array (GOA) in the array substrate row scanning drive circuit often corresponds to two or more rows of data lines. In this way, there is an obvious difference between the time when the gate is closed and the time when the EM is turned on for the 2Mth row and the (2M + 1)th row, resulting in a difference in the data actually charged into the N1 point, a difference in the brightness of odd and even rows, and macroscopically, fine horizontal stripes with alternating light and dark (Close horizontal grain) appear on the display screen. Summary of the Invention

[0003] The present application provides a display module, a control device and method thereof, a display device, and a storage medium.

[0004] A control device for a display module according to an embodiment of the present application is used to control the display module. It is characterized in that the display module includes multiple groups of gate lines, multiple groups of data lines, and pixel units arranged in an array. The gate lines and the data lines are arranged crosswise and insulated from each other. Each group of gate lines includes a first gate line and a second gate line. The first gate line and the second gate line in each group of gate lines are respectively connected to the pixel units of adjacent two rows. Each group of data lines includes a first data line and a second data line. The first data line and the second data line in each group of data lines are respectively connected to the pixel units of adjacent two rows;

[0005] The control device of the display module includes:

[0006] A first control module, configured to send a first data signal to the first data line when the first gate line receives a signal;

[0007] A second control module, configured to send a second data signal to the second data line when the second gate line receives a signal, wherein the potential of the second data signal is higher than the potential of the first data signal.

[0008] In the control device of the display module according to the embodiment of the present application, when the first gate line receives a signal, a first data signal is sent to the first data line; when the second gate line receives a signal, a second data signal is sent to the second data line, wherein the potential of the second data signal is higher than the potential of the first data signal. In this way, the high potential of the second data signal can increase the brightness of the pixel units in the second row, so as to avoid the appearance of fine horizontal stripes with alternating light and dark and improve the display effect of the display module.

[0009] In some embodiments, the second data signal is a predetermined signal superimposed on the first data signal, such that the potential of the second data signal is higher than the potential of the first data signal;

[0010] The second data signal can be calculated by the following equation:

[0011] Y = X + Z; where X is the first data signal, Y is the second data signal, and Z is the predetermined signal.

[0012] Thus, the gate lines of the display module are grouped, and two adjacent gate lines are used as a group of a first gate line and a second gate line. When the first gate line receives a signal, the first control module sends a first data signal X to the first data line. When the second gate line receives a signal, the second control module sends a second data signal Y to the second data line. In this way, two data signals can be sent respectively. At the same time, the second data signal is superimposed with a predetermined signal Z on the basis of the first data signal, ensuring that the potential of the second data signal can be higher than the potential of the first data signal. Furthermore, the brightness of the second row of pixel units driven by the second gate line can be increased to ensure the display effect of the entire display module and avoid the appearance of bright and dark stripes. (It should be noted that the second gate line refers to the row of pixel units that are dark)

[0013] In some embodiments, the predetermined signal is adjusted according to the current brightness coefficient, grayscale coefficient, and / or frequency coefficient of the display module;

[0014] The predetermined signal can be calculated by the following equation:

[0015] Z = Offset * DBV Scalar i * Gray Scalar i * Hz Scalar1; where Offset is the compensation coefficient, DBV Scalar i is the current brightness coefficient, Gray Scalar i is the current grayscale coefficient, and Hz Scalar1 is the current frequency coefficient.

[0016] Thus, the predetermined signal can be equivalent to the product of the compensation coefficient and the current brightness coefficient, the current grayscale coefficient, and the current frequency coefficient. That is to say, when superimposing the predetermined signal, the influence of brightness, grayscale, and frequency on the data has been considered. Therefore, the second data signal can respond to brightness, grayscale, and frequency to ensure the display effect.

[0017] In some embodiments, the current brightness coefficient can be calculated by the following equation:

[0018]

[0019] Among them, any brightness is taken as the base brightness, the base brightness coefficient DBV Scalar1 is set to 1, i is an integer greater than or equal to 1, and Lv i is the maximum gray-scale brightness value of the current brightness, Lv1 is the maximum gray-scale brightness value at the base brightness, and PWM i is the pulse-width modulation of the current brightness, and PWM1 is the pulse-width modulation at the base brightness.

[0020] In this way, the current brightness coefficient can be calculated based on the base brightness, ensuring that the brightness coefficients corresponding to all brightness levels can be expressed. In this way, the display module can calculate the current brightness coefficient at any brightness level, ensuring the accuracy of the compensation for the display module.

[0021] In some embodiments, the current gray-scale coefficient can be calculated through the following equation:

[0022]

[0023] Among them, any gray scale is taken as the base gray scale, the base gray-scale coefficient Gray Scalar1 is set to 1, i is an integer greater than or equal to 1, and gray i is the current gray value, and gray1 is the base gray value.

[0024] In this way, the current gray-scale coefficient can be calculated based on the base gray scale, ensuring that the gray-scale coefficients corresponding to all gray scales can be expressed. In this way, the display module can calculate the current gray-scale coefficient at any gray scale, ensuring the accuracy of the compensation for the display module.

[0025] In some embodiments, when the charging time of the display module is different, the current frequency coefficient can be calculated through the following equation:

[0026]

[0027] Among them, any frequency is taken as the base frequency, the base frequency coefficient Hz Scalar1 is set to 1, i is an integer greater than or equal to 1, and Hz i is the current frequency, and Hz1 is the base frequency.

[0028] In this way, the current frequency coefficient can be calculated based on the base frequency, ensuring that the frequency coefficients corresponding to all frequencies can be expressed. In this way, the display module can calculate the current frequency coefficient at any frequency, ensuring the accuracy of the compensation for the display module.

[0029] In some embodiments, the display module further includes a control chip, which is respectively connected to the multiple groups of gate lines and the multiple groups of data lines, and the control chip is used to calculate the predetermined signal and the second data signal.

[0030] In this way, the first control module and the second control module can be arranged in the control chip. The control chip can be connected to all the gate lines and data lines at the same time, and then send signals to the gate lines and data lines respectively according to a certain timing to ensure the normal display of the display module.

[0031] In some embodiments, the display module further includes multiple light-emitting control lines. The control chip is connected to the multiple light-emitting control lines. One light-emitting control line corresponds to one group of gate lines. The light-emitting control line, the gate line and the data line together form a pixel circuit, and the pixel circuit is connected to the pixel unit.

[0032] In this way, the control chip sends signals to the light-emitting control line to control the pixel unit to emit light. At the same time, signals are sent through the first gate line and the second gate line in a group of gate lines successively. When the light-emitting control line stops receiving signals, the first gate line and the second gate line also stop working, thereby realizing the charging and light-emitting actions of the pixel unit.

[0033] In some embodiments, each group of gate lines further includes a third gate line and a fourth gate line. The first gate line, the second gate line, the third gate line and the fourth gate line in each group of gate lines are respectively connected to the pixel units in adjacent four rows. Each group of data lines further includes a third data line and a fourth data line. The first data line, the second data line, the third data line and the fourth data line in each group of data lines are respectively connected to the pixel units in adjacent four rows;

[0034] The control device of the display module further includes:

[0035] A third control module, configured to send a third data signal to the third data line when the third gate line receives a signal, wherein the potential of the third data signal is higher than the potential of the second data signal;

[0036] A fourth control module, configured to send a fourth data signal to the fourth data line when the fourth gate line receives a signal, wherein the potential of the fourth data signal is higher than the potential of the third data signal.

[0037] In this way, one light-emitting control line corresponds to one group of gate lines. That is to say, when the light-emitting control line receives a signal, the first gate line, the second gate line, the third gate line and the fourth gate line receive signals successively, and the first data line, the second data line, the third data line and the fourth data line also receive signals at corresponding timings, and the potential increases in sequence, thereby avoiding the appearance of fine alternating bright and dark horizontal stripes and improving the display effect of the display module.

[0038] The control method of the display module according to the embodiments of the present application is used for the control device of the display module described in any one of the above embodiments. The control method of the display module includes:

[0039] When the first gate line receives a signal, a first data signal is sent to the first data line;

[0040] When the second gate line receives a signal, a second data signal is sent to the second data line, where the potential of the second data signal is higher than the potential of the first data signal.

[0041] In the control device and control method of the display module according to the embodiments of the present application, when the first gate line receives a signal, a first data signal is sent to the first data line; when the second gate line receives a signal, a second data signal is sent to the second data line, where the potential of the second data signal is higher than the potential of the first data signal. Thus, the high potential of the second data signal can increase the brightness of the pixel units in the second row, so as to avoid the appearance of fine horizontal stripes with alternating light and dark, and improve the display effect of the display module.

[0042] In some embodiments, each group of the gate lines further includes a third gate line and a fourth gate line. The first gate line, the second gate line, the third gate line, and the fourth gate line in each group of gate lines are respectively connected to the pixel units in adjacent four rows. Each group of the data lines further includes a third data line and a fourth data line. The first data line, the second data line, the third data line, and the fourth data line in each group of data lines are respectively connected to the pixel units in adjacent four rows;

[0043] The control method of the display module further includes:

[0044] When the third gate line receives a signal, a third data signal is sent to the third data line, where the potential of the third data signal is higher than the potential of the second data signal;

[0045] When the fourth gate line receives a signal, a fourth data signal is sent to the fourth data line, where the potential of the fourth data signal is higher than the potential of the third data signal.

[0046] Thus, one emission control line corresponds to a group of four gate lines. When the emission control line receives a signal, the first gate line, the second gate line, the third gate line, and the fourth gate line receive signals in sequence, and the first data line, the second data line, the third data line, and the fourth data line also receive signals in the corresponding time sequence, and the potential increases in sequence, thereby avoiding the appearance of fine horizontal stripes with alternating light and dark, and improving the display effect of the display module.

[0047] In some embodiments, the display module further includes a control chip and a plurality of light-emitting control lines. The control chip is respectively connected to the plurality of groups of gate lines and the plurality of groups of data lines. The control chip is configured to calculate the predetermined signal and the second data signal. The control chip is connected to the plurality of light-emitting control lines. One light-emitting control line corresponds to one group of gate lines. The light-emitting control line, the gate line, and the data line together form a pixel circuit, and the pixel circuit is connected to the pixel unit;

[0048] Before the first data signal is sent to the first data line when the first gate line receives a signal, it includes:

[0049] Controlling the reset of the pixel circuit;

[0050] Charging the pixel circuit through the light-emitting control line of the display module.

[0051] In this way, the pixel circuit can complete the processes of reset and charging in sequence according to the timing. After the charging is completed, the light-emitting action is performed. During the charging process, the control chip can start the charging process through the light-emitting control line, and then enable a group of gate lines to receive signals in sequence, and a corresponding group of data lines also receive signals in sequence. When giving the data signal, the potential of the data signal of the data line corresponding to the dark stripe pixel unit can be controlled to be increased, thereby increasing the brightness of the pixel unit and avoiding the appearance of fine horizontal stripes, and improving the display effect of the display module.

[0052] The display module according to an embodiment of the present application includes the control device of the display module described in any one of the above embodiments.

[0053] In the display module, its control device and method according to an embodiment of the present application, when the first gate line receives a signal, a first data signal is sent to the first data line; when the second gate line receives a signal, a second data signal is sent to the second data line, wherein the potential of the second data signal is higher than that of the first data signal. In this way, the high potential of the second data signal can increase the brightness of the pixel units in the second row to avoid the appearance of fine horizontal stripes with alternating light and dark, and improve the display effect of the display module.

[0054] The display device according to an embodiment of the present application includes the display module described in the above embodiment.

[0055] The display device according to an embodiment of the present application includes a processor and a memory. The processor is configured to execute a computer program stored in the memory to execute the control method of the display module described in any one of the above embodiments.

[0056] The readable storage medium storing a computer program, when the computer program is executed by one or more processors, implements the control method of the display module described in any one of the above embodiments.

[0057] In the display module, its control device and method, display device, and storage medium according to the embodiments of the present application, when the first gate line receives a signal, a first data signal is sent to the first data line; when the second gate line receives a signal, a second data signal is sent to the second data line, where the potential of the second data signal is higher than that of the first data signal. In this way, the high potential of the second data signal can increase the brightness of the pixel units in the second row, so as to avoid the appearance of fine horizontal stripes with alternating light and dark, and improve the display effect of the display module.

[0058] Additional aspects and advantages of the embodiments of the present application will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the embodiments of the present application. Brief Description of the Drawings

[0059] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, where:

[0060] Figure 1 is a schematic plan view of the display module according to the embodiment of the present application;

[0061] Figure 2 is a schematic block diagram of the control device according to the embodiment of the present application;

[0062] Figure 3 is a schematic circuit diagram of the pixel circuit according to the embodiment of the present application;

[0063] Figure 4 is another schematic plan view of the display module according to the embodiment of the present application;

[0064] Figure 5 is a schematic structural diagram of the display device according to the embodiment of the present application;

[0065] Figure 6 is a schematic flowchart of the control method of the display module according to the embodiment of the present application;

[0066] Figure 7 is a schematic block diagram of the display device according to the embodiment of the present application;

[0067] Figure 8 is another schematic flowchart of the control method of the display module according to the embodiment of the present application;

[0068] Figure 9 is another schematic flowchart of the control method of the display module according to the embodiment of the present application.

[0069] Main Element Symbol Description:

[0070] Display device 100;

[0071] Display module 101, control device 10, first control module 11, second control module 12, third control module 13, fourth control module 14, fifth control module 15, sixth control module 16, control chip 17, processor 18, memory 19, pixel unit 20, pixel circuit 21, gate line 30, first gate line 31, second gate line 32, third gate line 33, fourth gate line 34, data line 40, first data line 41, second data line 42, third data line 43, fourth data line 44. Detailed implementation manners

[0072] The following details the implementation manners of the present application. The examples of the implementation manners are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The implementation manners described below with reference to the accompanying drawings are exemplary and are only used to explain the implementation manners of the present application and should not be construed as a limitation on the implementation manners of the present application.

[0073] Please refer to Figures 1 to 3 , the control device 10 of the display module 101 in the implementation manner of the present application is used to control the display module 101. It is characterized in that the display module 101 includes multiple groups of gate lines 30 and multiple groups of data lines 40 and pixel units 20 arranged in an array. The gate lines 30 and the data lines 40 are arranged in a cross-insulated manner. Each group of gate lines 30 includes a first gate line 31 and a second gate line 32. The first gate line 31 and the second gate line 32 in each group of gate lines 30 are respectively connected to the pixel units 20 in adjacent rows. Each group of data lines 40 includes a first data line 41 and a second data line 42. The first data line 41 and the second data line 42 in each group of data lines 40 are respectively connected to the pixel units 20 in adjacent rows;

[0074] The control device 10 of the display module 101 includes:

[0075] The first control module 11 is used to send a first data signal to the first data line 41 when the first gate line 31 receives a signal;

[0076] The second control module 12 is used to send a second data signal to the second data line 42 when the second gate line 32 receives a signal, where the potential of the second data signal is higher than the potential of the first data signal.

[0077] In the control device 10 of the display module 101 according to the embodiment of the present application, when the first gate line 31 receives a signal, a first data signal is sent to the first data line 41; when the second gate line 32 receives a signal, a second data signal is sent to the second data line 42, wherein the potential of the second data signal is higher than that of the first data signal. In this way, the high potential of the second data signal can increase the brightness of the pixel units 20 in the second row to avoid the appearance of fine horizontal stripes with alternating light and dark, and improve the display effect of the display module 101.

[0078] In the related art, one emission control drive (EM) often corresponds to two or more rows of data lines. In this case, there is a significant difference in the time from when the Gate is turned off to when the EM is turned on between the 2Mth row and the (2M + 1)th row, resulting in a difference in the Data actually charged into point N1, a difference in the brightness of the odd and even rows, and macroscopically, fine horizontal stripes with alternating light and dark (Closehorizontalgrain) appear on the display screen.

[0079] In the embodiment of the present application, the gate lines 30 and the data lines 40 are grouped, and one group of gate lines 30 corresponds to one group of data lines 40. The first gate line 31 corresponds to the first data line 41, and the second gate line 32 corresponds to the second data line 42. In this way, all the gate lines 30 and data lines 40 on the display module 101 can be corresponding, ensuring that all the second data lines 42 can receive the second data signal, and the potential of the second data signal is higher than that of the first data signal. Furthermore, the brightness of the pixel units 20 corresponding to the second gate line 32 is increased to avoid the difference in the brightness of the odd and even rows and solve the problem of fine horizontal stripes.

[0080] It can be understood that among one group of gate lines 30 and data lines 40, the gate lines 30 and data lines 40 corresponding to the pixel units 20 with darker brightness are the second gate line 32 and the second data line 42. By directly increasing the potential of the second data signal, the brightness of the pixel units 20 at the corresponding positions can be increased.

[0081] Please refer to Figure 1 , in some embodiments, the display module 101 further includes a control chip 17. The control chip 17 is respectively connected to multiple groups of gate lines 30 and multiple groups of data lines 40, and the control chip 17 is used to calculate a predetermined signal and the second data signal.

[0082] In this way, the first control module 11 and the second control module 12 can be arranged in the control chip 17. The control chip 17 can be simultaneously connected to all the gate lines 30 and data lines 40, and then send signals to the gate lines 30 and data lines 40 respectively according to a certain timing sequence to ensure the normal display of the display module 101.

[0083] Specifically, the control chip 17 can be the driving chip of the display module 101. The control chip 17 can perform storage and calculation processes to control the gate lines 30 and data lines 40 to achieve corresponding actions.

[0084] Please refer to Figure 3 , in some embodiments, the second data signal is a predetermined signal superimposed on the first data signal, so that the potential of the second data signal is higher than that of the first data signal;

[0085] The second data signal can be calculated by the following equation:

[0086] Y = X + Z; where X is the first data signal, Y is the second data signal, and Z is the predetermined signal.

[0087] In this way, the gate lines 30 of the display module 101 are grouped, and two adjacent gate lines 30 are used as a group of gate lines 30, the first gate line 31 and the second gate line 32. When the first gate line 31 receives a signal, the first control module 11 sends the first data signal X to the first data line 41. When the second gate line 32 receives a signal, the second control module 12 sends the second data signal Y to the second data line 42. In this way, two data signals can be sent respectively. At the same time, the second data signal is a predetermined signal Z close to the first data signal, ensuring that the potential of the second data signal can be higher than that of the first data signal, thereby improving the brightness of the second row of pixel units 20 driven by the second gate line 32, ensuring the display effect of the entire display module 101, and avoiding the appearance of bright and dark stripes.

[0088] Specifically, the second data signal can be a predetermined signal directly superimposed on the first data signal, and the potential of the second data signal can be directly increased on the basis of the first data signal to improve the brightness of the pixel units 20 corresponding to the second gate line 32 and the second data line 42.

[0089] Please refer to Figure 3 , in some embodiments, the predetermined signal is adjusted according to the current brightness coefficient, grayscale coefficient, and / or frequency coefficient of the display module 101;

[0090] The predetermined signal can be calculated by the following equation:

[0091] Z = Offset * DBV Scalar i * Gray Scalar i * Hz Scalar i ; where Offset is the compensation coefficient, DBV Scalar i is the current brightness coefficient, Gray Scalar i is the current grayscale coefficient, Hz Scalari is the current frequency coefficient.

[0092] In this way, the predetermined signal can be equivalent to the product of the compensation coefficient and the current luminance coefficient, the current gray scale coefficient, and the current frequency coefficient. That is to say, the influence of luminance, gray scale, and frequency on the data has been taken into account when the predetermined signal is superimposed. Therefore, the second data signal can respond to luminance, gray scale, and frequency to ensure the display effect.

[0093] Specifically, when adjusting the second data signal, it is necessary to consider the current luminance, gray scale, frequency, and other conditions of the display module 101, and add the coefficients of luminance, gray scale, and frequency to the equation set, so that the adjusted second data signal can respond to the current luminance, gray scale, and frequency parameters, ensuring correspondence with the first data signal and improving the display effect. Offset is the compensation coefficient, which can be adjusted at any time according to different parameters of the display module 101 to ensure that the display module 101 can achieve the same display effect under different luminance, gray scale, and frequency.

[0094] Please refer to Figure 3 , in some embodiments, the current luminance coefficient can be calculated by the following equation:

[0095]

[0096] wherein, taking any luminance as the base luminance, making the base luminance coefficient DBV Scalar1 = 1, i is an integer greater than or equal to 1, and Lv i is the maximum gray scale luminance value of the current luminance, Lv1 is the maximum gray scale luminance value under the base luminance, and PWM i is the pulse width modulation of the current luminance, and PWM1 is the pulse width modulation under the base luminance.

[0097] In this way, the current luminance coefficient can be calculated based on the base luminance, ensuring that the luminance coefficients corresponding to all luminances can be expressed. In this way, the display module 101 can calculate the current luminance coefficient at any luminance, ensuring the accuracy of the compensation for the display module 101.

[0098] Exemplarily, the luminance range of the display module 101 is 1 - 4095. Any luminance value can be set as the base luminance, and the luminance coefficient of this base luminance is set to 1. The current luminance coefficient DBVScalar can be calculated through the above equation i . i is an integer greater than or equal to 1 to represent any luminance. When i equals 1, the current luminance coefficient is equal to the base luminance coefficient, which is 1. In an example, the luminance of the base luminance is 2000, i is 2, and the current luminance is 3000. The current luminance coefficient can be expressed as Among them, Lv2 is the maximum gray-scale brightness value when the current brightness is 3000, and PWM2 is the pulse-width modulation when the current brightness is 3000, so as to calculate the current brightness coefficient.

[0099] It can be understood that when the current brightness of the display module 101 is fixed, the current brightness coefficient is also fixed. The control chip 17 can directly store this data, which can be directly called during use and calculated through equations. In some embodiments, when the brightness range of the display module 101 is 1 - 4095, the maximum gray-scale brightness value Lv and the pulse-width modulation PWM of the display module 101 are both 4095 fixed data. The control chip 17 can directly calculate and store all the brightness coefficients to ensure direct calling and reduce the calculation time.

[0100] Please refer to Figure 3 , in some embodiments, the current gray-scale coefficient can be calculated through the following equation:

[0101]

[0102] Among them, any gray scale is taken as the base gray scale, and the base gray-scale coefficient Gray Scalar1 is set to 1, gray i is the current gray value, and gray1 is the base gray value.

[0103] In this way, the current gray-scale coefficient can be calculated through the base gray scale, ensuring that the gray-scale coefficients corresponding to all gray scales can be expressed. In this way, the display module 101 can calculate the current gray-scale coefficient at any gray scale, ensuring the accuracy of the compensation for the display module 101.

[0104] Specifically, the gray scale of the display module 101 is also within a fixed range. Any gray value can be set as the base gray scale, and the gray-scale coefficient of this base gray scale is set to 1. The current gray-scale coefficient GrayScalar i can be calculated through the above equation. i is an integer greater than or equal to 1 to represent any gray scale. When i is equal to 1, the current gray-scale coefficient is equal to the base gray-scale coefficient, which is 1.

[0105] Please refer to Figure 3 , in some embodiments, when the charging time of the display module 101 is different, the current frequency coefficient can be calculated through the following equation:

[0106]

[0107] Among them, any frequency is taken as the base frequency, and the base frequency coefficient Hz Scalar1 is set to 1, Hz i is the current frequency, and Hz1 is the base frequency.

[0108] In this way, the current frequency coefficient can be calculated based on the base frequency, ensuring that all frequency coefficients corresponding to all frequencies can be expressed. In this way, the display module 101 can calculate the current frequency coefficient at any frequency, ensuring the accuracy of the compensation for the display module 101.

[0109] Specifically, the frequency of the display module 101 is also within a fixed range. Any frequency can be set as the base frequency, and the frequency coefficient of this base frequency is set to 1. The current frequency coefficient GrayScalar can be calculated through the above equation. i i is an integer greater than or equal to 1 to represent any frequency. When i equals 1, the current frequency coefficient is equal to the base frequency coefficient, which is 1.

[0110] In an example, the base frequency can be 60Hz, the frequency coefficient of 60Hz is set to 1, and the current frequency is 120Hz. Then, the current frequency coefficient can be calculated to be 0.5 to ensure the accuracy of the compensation for the display module 101, making the entire display module 101 have better display uniformity.

[0111] Please refer to Figure 1 , in some embodiments, the display module 101 further includes a plurality of light emission control lines (not shown in the figure). The control chip 17 is connected to the plurality of light emission control lines. One light emission control line corresponds to a group of gate lines 30. The light emission control line, the gate line 30, and the data line 40 together form a pixel circuit 21, and the pixel circuit 21 is connected to the pixel unit 20.

[0112] In this way, the control chip 17 sends a signal to the light emission control line to control the pixel unit 20 to emit light. At the same time, signals are sent through the first gate line 31 and the second gate line 32 in a group of gate lines 30 in sequence. When the light emission control line stops receiving the signal, the first gate line 31 and the second gate line 32 also stop working, thereby realizing the charging and light emission actions of the pixel unit 20.

[0113] Please combine with Figure 3 , Figure 3The pixel circuit diagram of the embodiment of the present application, where Reset is the reset signal terminal, EM is the light emission control signal terminal, Vinit is the initialization voltage terminal, VSS is the second voltage signal terminal, and the first voltage signal terminal VDD is used to provide a first voltage signal, and the second voltage signal terminal VSS is used to provide a second voltage signal. The first voltage signal is a high-level signal relative to the second voltage signal. T1 is the first reset thin film transistor, T2 is the compensation thin film transistor, T3 is the driving thin film transistor, T4 is the switching thin film transistor, T5 is the first light emission control thin film transistor, T6 is the second light emission control thin film transistor, and T7 is the second reset thin film transistor. The control electrode of the first reset transistor T1 is electrically connected to the reset signal terminal Reset. The first electrode of the first reset thin film transistor T1 is electrically connected to the initialization voltage terminal Vinit. The second electrode of the first reset thin film transistor T1 is electrically connected to the second electrode of the compensation thin film transistor T2 through the third node N3. The second electrode of the first reset thin film transistor T1 is electrically connected to the control electrode of the driving thin film transistor T3 through the first node N1 and is simultaneously electrically connected to one plate of the storage capacitor.

[0114] Please refer to Figure 2 and Figure 4 In some embodiments, each group of gate lines 30 further includes a third gate line 33 and a fourth gate line 34. The first gate line 31, the second gate line 32, the third gate line 33, and the fourth gate line 34 in each group of gate lines 30 are respectively connected to the pixel units 20 of adjacent four rows. Each group of data lines 40 further includes a third data line 43 and a fourth data line 44. The first data line 41, the second data line 42, the third data line 43, and the fourth data line 44 in each group of data lines 40 are respectively connected to the pixel units 20 of adjacent four rows;

[0115] The control device 10 of the display module 101 further includes:

[0116] The third control module 13 is used to send a third data signal to the third data line 43 when the third gate line 33 receives a signal, where the potential of the third data signal is higher than the potential of the second data signal;

[0117] The fourth control module 14 is used to send a fourth data signal to the fourth data line 44 when the fourth gate line 34 receives a signal, where the potential of the fourth data signal is higher than the potential of the third data signal.

[0118] Thus, one light-emitting control line corresponds to a group of gate lines 30. That is to say, when the light-emitting control line receives a signal, the first gate line 31, the second gate line 32, the third gate line 33, and the fourth gate line 34 receive the signal successively. The first data line 41, the second data line 42, the third data line 43, and the fourth data line 44 also receive the signal at the corresponding time sequence, and the potential increases successively, thereby avoiding the appearance of fine horizontal stripes of light and dark and improving the display effect of the display module 101.

[0119] Specifically, in such an embodiment, four gate lines 30 are in a group. The first gate line 31, the second gate line 32, the third gate line 33, and the fourth gate line 34 receive signals in sequence according to the time sequence. The later the signal is received, the lower the brightness of the corresponding pixel unit 20. Among them, the first gate line 31 corresponds to the pixel unit 20 with the highest brightness, and the fourth gate line 34 corresponds to the pixel unit 20 with the lowest brightness. The potential of the data line 40 can be increased successively, and thus the potential of the first data signal, the second data signal, the third data signal, and the fourth data signal can be increased successively, thereby ensuring the uniformity of the display module 101.

[0120] Please refer to Figure 5 , the display device 100 of the embodiment of the present application includes the display module 101 of the above embodiment.

[0121] In the embodiment of the present application, the specific type of the display device 100 is not limited to meet various requirements. For example, the display device 100 can be a mobile device such as a smart phone or a tablet, the display device 100 can also be a wearable device such as a smart watch or a bracelet, and can also be a household appliance such as a television for displaying pictures.

[0122] Please refer to Figure 6 , the control method of the display module 101 of the embodiment of the present application is used for the control device 10 of the display module 101 in any of the above embodiments. The control method of the display module 101 includes:

[0123] S10, when the first gate line 31 receives a signal, send a first data signal to the first data line 41;

[0124] S20, when the second gate line 32 receives a signal, send a second data signal to the second data line 42, where the potential of the second data signal is higher than the potential of the first data signal.

[0125] Please refer to Figure 7, the display device 100 according to the embodiments of the present application includes a processor 18 and a memory 19. Among them, the processor 18 is used to execute the computer program stored in the memory 19 to execute the control method of the display module 101 according to any embodiment of the present application. That is to say, the processor 18 can be used to send a first data signal to the first data line 41 when the first gate line 31 receives a signal; and to send a second data signal to the second data line 42 when the second gate line 32 receives a signal, where the potential of the second data signal is higher than that of the first data signal.

[0126] In the control device 10 and the control method of the display module 101 according to the embodiments of the present application, when the first gate line 31 receives a signal, a first data signal is sent to the first data line 41; when the second gate line 32 receives a signal, a second data signal is sent to the second data line 42, where the potential of the second data signal is higher than that of the first data signal. Thus, the high potential of the second data signal can increase the brightness of the pixel units 20 in the second row to avoid the appearance of fine horizontal stripes with alternating light and dark, and improve the display effect of the display module 101.

[0127] Please refer to Figure 4 and Figure 8 , in some embodiments, each group of gate lines 30 further includes a third gate line 33 and a fourth gate line 34. The first gate line 31, the second gate line 32, the third gate line 33, and the fourth gate line 34 in each group of gate lines 30 are respectively connected to the pixel units 20 in adjacent four rows. Each group of data lines 40 further includes a third data line 43 and a fourth data line 44. The first data line 41, the second data line 42, the third data line 43, and the fourth data line 44 in each group of data lines 40 are respectively connected to the pixel units 20 in adjacent four rows;

[0128] The control method of the display module 101 further includes:

[0129] S30, when the third gate line 33 receives a signal, send a third data signal to the third data line 43, where the potential of the third data signal is higher than that of the second data signal;

[0130] S40, when the fourth gate line 34 receives a signal, send a fourth data signal to the fourth data line 44, where the potential of the fourth data signal is higher than that of the third data signal.

[0131] In some embodiments, the processor 18 can also be used to send a third data signal to the third data line 43 when the third gate line 33 receives a signal, where the potential of the third data signal is higher than that of the second data signal; and to send a fourth data signal to the fourth data line 44 when the fourth gate line 34 receives a signal, where the potential of the fourth data signal is higher than that of the third data signal.

[0132] Thus, one light-emitting control line corresponds to a set of four gate lines 30. When the light-emitting control line receives a signal, the first gate line 31, the second gate line 32, the third gate line 33, and the fourth gate line 34 receive the signal in sequence. The first data line 41, the second data line 42, the third data line 43, and the fourth data line 44 also receive the signal in the corresponding timing sequence, and the potential increases sequentially, thereby avoiding the appearance of fine horizontal stripes of alternating light and dark, and improving the display effect of the display module 101.

[0133] Please refer to Figure 9 , in some embodiments, before sending the first data signal to the first data line 41 when the first gate line 31 receives a signal, it includes:

[0134] S50, controlling the pixel circuit 21 to reset;

[0135] S60, charging the pixel circuit 21 through the light-emitting control line of the display module 101.

[0136] In some embodiments, the processor 18 can also be used to control the pixel circuit 21 to reset; and to charge the pixel circuit 21 through the light-emitting control line of the display module 101.

[0137] In some embodiments, the control device 10 of the display module 101 further includes a fifth control module 15 and a sixth control module 16. The fifth control module 15 is used to control the pixel circuit 21 to reset; the sixth control module 16 is used to charge the pixel circuit 21 through the light-emitting control line of the display module 101.

[0138] Thus, the pixel circuit 21 can complete the processes of reset and charge in sequence corresponding to the timing, and perform the light-emitting action after the charging is completed. During the charging process, the control chip 17 can start the charging process through the light-emitting control line, and then make a set of gate lines 30 receive the signal in sequence, and a corresponding set of data lines 40 also receive the signal in sequence. When giving the data signal, it can control to increase the potential of the data signal of the data line 40 corresponding to the dark stripe pixel unit 20, thereby increasing the brightness of the pixel unit 20, avoiding the appearance of fine horizontal stripes, and improving the display effect of the display module 101.

[0139] Please refer to Figure 1 and Figure 2 , the display module 101 of the embodiment of the present application includes the control device 10 of the display module 101 in any of the above embodiments.

[0140] In the display module 101, its control device 10, and method according to the embodiments of the present application, when the first gate line 31 receives a signal, a first data signal is sent to the first data line 41; when the second gate line 32 receives a signal, a second data signal is sent to the second data line 42, where the potential of the second data signal is higher than that of the first data signal. In this way, the high potential of the second data signal can increase the brightness of the pixel units 20 in the second row, so as to avoid the appearance of fine alternating bright and dark horizontal stripes and improve the display effect of the display module 101.

[0141] Please refer to Figure 7 , a readable storage medium storing a computer program according to the embodiments of the present application, when the computer program is executed by one or more processors 18, implements the control method of the display module 101 according to any one of the above embodiments.

[0142] In one example, the computer program can be executed by the processor 18 to complete the control method of the display module 101 with the following steps:

[0143] S10, when the first gate line 31 receives a signal, send a first data signal to the first data line 41;

[0144] S20, when the second gate line 32 receives a signal, send a second data signal to the second data line 42, where the potential of the second data signal is higher than that of the first data signal.

[0145] In the display module 101, its control device 10, and method, the display device 100, and the storage medium according to the embodiments of the present application, when the first gate line 31 receives a signal, a first data signal is sent to the first data line 41; when the second gate line 32 receives a signal, a second data signal is sent to the second data line 42, where the potential of the second data signal is higher than that of the first data signal. In this way, the high potential of the second data signal can increase the brightness of the pixel units 20 in the second row, so as to avoid the appearance of fine alternating bright and dark horizontal stripes and improve the display effect of the display module 101.

[0146] In the description of this specification, the descriptions referring to terms such as "the above", "specifically", "further", "understandably", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0147] Any process or method description depicted in the flowchart or otherwise described herein may be understood to represent a module, segment, or portion of executable instructions including one or more steps for implementing a particular logical function or process, and the scope of the preferred embodiments of the present application includes additional implementations in which functions may be executed not in the order shown or discussed, including substantially concurrently or in reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present application pertain.

[0148] Although the embodiments of the present application have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art may make variations, modifications, substitutions, and alterations within the scope of the present application.

Claims

1. A control device for a display module, used to control the display module, characterized in that, The display module includes multiple groups of gate lines, multiple groups of data lines, and pixel units arranged in an array. The gate lines and the data lines are arranged in a cross-insulated manner. Each group of gate lines includes a first gate line and a second gate line. The first gate line and the second gate line in each group of gate lines are respectively connected to the pixel units in adjacent two rows. Each group of data lines includes a first data line and a second data line. The first data line and the second data line in each group of data lines are respectively connected to the pixel units in adjacent two rows. The control device of the display module includes: A first control module, configured to send a first data signal to the first data line when the first gate line receives a signal; A second control module, configured to send a second data signal to the second data line when the second gate line receives a signal, wherein the potential of the second data signal is higher than the potential of the first data signal; The second data signal is a signal obtained by superimposing a predetermined signal on the first data signal, so that the potential of the second data signal is higher than the potential of the first data signal; The second data signal can be calculated by the following equation: Y = X + Z; where X is the first data signal, Y is the second data signal, and Z is the predetermined signal; The predetermined signal is adjusted according to the current brightness coefficient, gray scale coefficient, and / or frequency coefficient of the display module; The predetermined signal can be calculated by the following equation: Z = Offset * DBV Scalar i * Gray Scalar i * Hz Scalar i ; where Offset is the compensation coefficient, and DBV Scalar i is the current brightness coefficient, Gray Scalar i is the current gray scale coefficient, Hz Scalar i is the current frequency coefficient.

2. The control device of the display module according to claim 1, characterized in that, The current brightness coefficient can be calculated by the following equation: Among them, any brightness is taken as the base brightness, and the base brightness coefficient DBV Scalar1 = 1. Let i be an integer greater than or equal to 1, and Lv i is the maximum grayscale brightness value of the current brightness, Lv1 is the maximum grayscale brightness value at the base brightness, and PWM i is the pulse width modulation of the current brightness, and PWM1 is the pulse width modulation at the base brightness.

3. The control device of the display module according to claim 1, characterized in that, The current gray scale coefficient can be calculated by the following equation: Among them, any gray level is taken as the base gray level, and the base gray level coefficient Gray Scalar1 is set to 1. Let i be an integer greater than or equal to 1, and gray i is the current gray value, and gray1 is the base gray value.

4. The control device of the display module according to claim 1, characterized in that, When the charging time of the display module is different, the current frequency coefficient can be calculated by the following equation: Among them, any frequency is taken as the base frequency, and the base frequency coefficient Hz Scalar1 = 1. Let i be an integer greater than or equal to 1, Hz i is the current frequency, and Hz1 is the base frequency.

5. The control device of the display module according to claim 1, characterized in that, The display module further includes a control chip, which is respectively connected to the multiple groups of gate lines and the multiple groups of data lines. The control chip is configured to calculate the predetermined signal and the second data signal.

6. The control device of the display module according to claim 5, characterized in that, The display module further includes multiple light-emitting control lines. The control chip is connected to the multiple light-emitting control lines. One light-emitting control line corresponds to one group of gate lines. The light-emitting control line, the gate line, and the data line together form a pixel circuit, and the pixel circuit is connected to the pixel unit.

7. The control device of the display module according to claim 1, wherein Each group of gate lines further includes a third gate line and a fourth gate line. The first gate line, the second gate line, the third gate line, and the fourth gate line in each group of gate lines are respectively connected to the pixel units in adjacent four rows. Each group of data lines further includes a third data line and a fourth data line. The first data line, the second data line, the third data line, and the fourth data line in each group of data lines are respectively connected to the pixel units in adjacent four rows; The control device of the display module further includes: A third control module, configured to send a third data signal to the third data line when the third gate line receives a signal, wherein the potential of the third data signal is higher than the potential of the second data signal; A fourth control module, configured to send a fourth data signal to the fourth data line when the fourth gate line receives a signal, wherein the potential of the fourth data signal is higher than the potential of the third data signal.

8. A control method for a display module, for a control device of the display module according to any one of claims 1-7, characterized in that, Includes: When the first gate line receives a signal, a first data signal is sent to the first data line; When the second gate line receives a signal, a second data signal is sent to the second data line, wherein the potential of the second data signal is higher than that of the first data signal.

9. The control method of the display module according to claim 8, wherein, Each group of the gate lines further includes a third gate line and a fourth gate line. The first gate line, the second gate line, the third gate line, and the fourth gate line in each group of gate lines are respectively connected to the pixel units in adjacent four rows. Each group of the data lines further includes a third data line and a fourth data line. The first data line, the second data line, the third data line, and the fourth data line in each group of data lines are respectively connected to the pixel units in adjacent four rows; The control method of the display module further includes: When the third gate line receives a signal, a third data signal is sent to the third data line, wherein the potential of the third data signal is higher than that of the second data signal; When the fourth gate line receives a signal, a fourth data signal is sent to the fourth data line, wherein the potential of the fourth data signal is higher than that of the third data signal.

10. The control method of the display module according to claim 8, characterized in that, The display module further includes a control chip and a plurality of light-emitting control lines. The control chip is respectively connected to the multiple groups of gate lines and the multiple groups of data lines. The control chip is used to calculate the predetermined signal and the second data signal. The control chip is connected to the plurality of light-emitting control lines. One light-emitting control line corresponds to one group of gate lines. The light-emitting control line, the gate line, and the data line together form a pixel circuit, and the pixel circuit is connected to the pixel unit; Before sending the first data signal to the first data line when the first gate line receives a signal, it includes: Controlling the reset of the pixel circuit; Charging the pixel circuit through the light-emitting control line of the display module.

11. A display module, characterized in that, A control device for a display module according to any one of claims 1-7.

12. A display device, characterized in that, A display module according to claim 11.

13. A display device, characterized in that, The display device includes a processor and a memory. The processor is used to execute a computer program stored in the memory to execute the control method of the display module according to any one of claims 8-10.

14. A readable storage medium storing a computer program, characterized in that, When the computer program is executed by one or more processors, the control method of the display module according to any one of claims 8-10 is implemented.

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