Display panel, method, electronic device, and computer-readable storage medium

Abstract

Embodiments of the present application disclose a display panel, a method, an electronic device, and a computer-readable storage medium. Among at least one type of multiple groups of comparators with opposite polarities in the display panel, each type of multiple groups of comparators with opposite polarities includes a group of reference comparators with opposite polarities and an offset less than an offset threshold; the display panel includes: a direction setting module for setting an initial offset compensation direction for each group of comparators with opposite polarities, which are the same or opposite; a direction identification module for determining a positive offset direction of a positive comparator of the same category through a positive reference comparator, and determining a negative offset direction of a negative comparator of the same category through a negative reference comparator; a direction control module for determining an actual offset compensation direction for each group of comparators according to the positive offset direction, the negative offset direction, and the initial offset compensation direction of each group of comparators; and performing offset compensation on each group of comparators according to the actual offset compensation direction.

Description

Technical Field

[0001] The present application relates to the field of electronic technologies, and in particular, to a display panel and method, an electronic device, and a computer-readable storage medium. Background Art

[0002] A display panel usually includes various comparators (OP). Since the offset direction of the comparator is random and uncertain, during actual application, the display panel will present display problems such as horizontal stripes and vertical stripes. Currently, the method for eliminating comparator offset (OP offset cancellation) is usually fixed. In the case of a high refresh rate, it can only reduce the recognition rate of human eyes for display problems such as horizontal stripes and vertical stripes. However, in the case of a low refresh rate, display problems such as horizontal stripes and vertical stripes still exist, resulting in poor display effects. Summary of the Invention

[0003] Embodiments of the present application provide a display panel and method, an electronic device, and a computer-readable storage medium, which improve the display effect of the display panel.

[0004] The technical solution of the present application is implemented as follows:

[0005] Embodiments of the present application provide a display panel. Among at least one type of multiple groups of comparators with opposite polarities in the display panel, each type of multiple groups of comparators with opposite polarities includes a positive reference comparator and a negative reference comparator; the offset of the reference comparator is less than the offset threshold; the display panel includes:

[0006] A direction setting module, configured to set the initial offset compensation direction of each group of comparators with opposite polarities in each category; the initial offset compensation directions of each group of comparators with opposite polarities are the same or opposite;

[0007] A direction recognition module, configured to determine the positive offset direction of the positive comparators in the corresponding category through the positive reference comparators in each category, and determine the negative offset direction of the negative comparators in the corresponding category through the negative reference comparators in each category;

[0008] A direction control module, configured to determine the actual offset compensation direction of each group of comparators with opposite polarities according to the positive offset direction, the negative offset direction, and the initial offset compensation direction of each group of comparators with opposite polarities; and perform offset compensation on each group of comparators with opposite polarities according to the actual offset compensation direction.

[0009] Embodiments of the present application provide a display method, which is applied to the above display panel and includes:

[0010] Through the direction setting module, set the initial offset compensation direction of each group of comparators with opposite polarities in each category; the initial offset compensation directions of each group of comparators with opposite polarities are the same or opposite;

[0011] Through the direction identification module, determine the positive offset direction of the positive comparators in the corresponding category based on the positive reference comparators in each category, and determine the negative offset direction of the negative comparators in the corresponding category based on the negative reference comparators in each category;

[0012] Through the direction control module, determine the actual offset compensation direction of each group of comparators with opposite polarities according to the positive offset direction, the negative offset direction, and the initial offset compensation direction of each group of comparators with opposite polarities; and perform offset compensation on each group of comparators with opposite polarities according to the actual offset compensation direction.

[0013] An embodiment of the present application provides an electronic device, including:

[0014] The above display panel is used to perform offset compensation on each group of comparators with opposite polarities;

[0015] A memory for storing a computer program;

[0016] A processor, when executing the computer program stored in the memory, implements the above display method.

[0017] An embodiment of the present application provides a computer-readable storage medium storing a computer program, which is used to implement the above display method when executed by a processor. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the polarity of an optional display panel provided by an embodiment of the present application;

[0019] Figure 2 It is a schematic diagram of an optional offset compensation direction provided by an embodiment of the present application;

[0020] Figure 3 It is a schematic diagram of an optional offset compensation effect provided by an embodiment of the present application;

[0021] Figure 4 It is a schematic diagram of an optional offset compensation effect provided by an embodiment of the present application;

[0022] Figure 5 It is a schematic diagram of the structural composition of an optional display panel provided by an embodiment of the present application;

[0023] Figure 6 It is a schematic diagram of an optional offset compensation effect provided by an embodiment of the present application;

[0024] Figure 7 A schematic flowchart of an optional display method provided by an embodiment of the present application;

[0025] Figure 8 A schematic flowchart of an optional display method provided by an embodiment of the present application;

[0026] Figure 9 A schematic diagram of the hardware structure of an optional electronic device provided by an embodiment of the present application. Detailed implementation manners

[0027] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings. The described embodiments should not be construed as limiting the present application. All other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present application.

[0028] In the following description, reference is made to "some embodiments", which describe a subset of all possible embodiments. However, it can be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.

[0029] In the following description, the terms "first / second / third" are only used to distinguish similar objects and do not represent a specific order for the objects. It can be understood that "first / second / third" can be interchanged with a specific order or sequence when allowed, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of this application and are not intended to limit this application.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used herein are only for the purpose of describing this application and are not intended to limit this application.

[0032] To facilitate understanding of this solution, before describing the embodiments of the present application, the application background in the embodiments of the present application will be described.

[0033] With the continuous development of display technology, the architecture of the display screen has also been continuously upgraded, gradually reducing the number of LCD source drivers, thereby reducing costs. For example Figure 1As shown, a group of source electrodes (such as S1 and S2, S3 and S4) share a pair of comparators with opposite polarities, and the comparators are swapped every frame, causing the polarity of each sub-pixel associated with this group of source electrodes to change every frame; where "+" and "-" represent polarities. However, due to the offset in the comparators inside the source driver IC, during actual application, display problems such as horizontal or vertical stripes are likely to occur. For this display problem, usually, the offset of the comparator can be reduced, or comparator offset cancellation (OP offset cancellation) can be performed to compensate for the comparator offset; however, reducing the offset of the comparator requires increasing the size of the comparator, thereby increasing costs, and moreover, the offset direction of the comparator is usually uncertain, and the methods of comparator offset cancellation in related technologies are usually fixed. Figure 2 A kind of offset cancellation scheme (2frame 1+4line chopping) is shown. The offset compensation method for each source output (Sout) is: +----++++----++++……, where "+" and "-" represent different offset compensation directions, and the offset compensation direction changes every two frames; thus, for each frame, after the comparator is offset-compensated, the light transmittance of the sub-pixels on some horizontal lines (line) either increases or decreases uniformly, resulting in horizontal stripes. Taking the ADS display panel as an example, a horizontal stripe elimination scheme is described for the display problem of horizontal stripes, as Figure 3 shown. Taking S3 and S4 as an example for analysis, VCOM is the reference voltage for the deflection of liquid crystal molecules, S4 is of positive polarity, and S3 is of negative polarity; after offset compensation, line2 is dark, line4 is bright, and so on, line6 is dark, line8 is bright...; in the next frame with the same polarity, line2 is bright, line4 is dark, and so on, line6 is bright, line8 is dark... If the refresh rate is 60Hz, the bright and dark conversion frequency of the same line is 4 frames, that is, 15Hz; thus, if the offset of some source driver ICs is large, bright horizontal stripes and dark horizontal stripes will appear on the display screen in the grayscale image. On the basis of this horizontal stripe elimination scheme, the offset compensation direction of each Sout changes every frame, so Figure 3 the bright and dark of the sub-pixels in S3 and S4 in the next frame are as Figure 4 shown. In the case of a refresh rate of 60Hz, the bright and dark conversion frequency of the same line can be 2 frames, that is, 30Hz. The alternating frequency of the bright horizontal stripes and the dark horizontal stripes is indistinguishable to the human eye, thereby improving the display effect. Since the bright horizontal stripes and the dark horizontal stripes still exist, the display effect is not good at low refresh frequencies.

[0034] To solve the above problems, an embodiment of the present application provides a display panel, which includes at least one type of multiple groups of comparators with opposite polarities. Each type of multiple groups of comparators with opposite polarities includes a group of reference comparators with opposite polarities; the offset of the reference comparator is less than the offset threshold. The offset direction of other comparators is determined by the reference comparator, and then the offset compensation direction is determined, thereby improving the display effect. The display panel in the embodiment of the present application can be the display panel of any electronic device, for example, a mobile device, a notebook, a television, etc. The embodiment of the present application does not limit this.

[0035] Figure 5 FIG. is a schematic structural diagram of an optional display panel provided by an embodiment of the present application. As Figure 5 shown, the display panel 10 includes: a direction setting module 101, a direction recognition module 102, and a direction control module 103. Among them, the direction setting module 101 is used to set the initial offset compensation direction of each group of comparators with opposite polarities in each category; the initial offset compensation directions of each group of comparators with opposite polarities are the same or opposite; the direction recognition module 102 is used to determine the positive offset direction of the positive comparators in the corresponding category through the positive reference comparators in each category, and determine the negative offset direction of the negative comparators in the corresponding category through the negative reference comparators in each category; the direction control module 103 is used to determine the actual offset compensation direction of each group of comparators with opposite polarities according to the positive offset direction, the negative offset direction, and the initial offset compensation direction of each group of comparators with opposite polarities; and perform offset compensation on each group of comparators with opposite polarities according to the actual offset compensation direction.

[0036] In the embodiment of the present application, the display panel may include multiple types of comparators, and each type of comparator includes multiple groups of comparators with opposite polarities; here, the multiple types may include the comparators of the source driver IC, and may also include GMA comparators, etc. The embodiment of the present application does not limit this.

[0037] In the embodiment of the present application, the offsets of both the positive reference comparator and the negative reference comparator are less than the offset threshold, and they can be regarded as comparators without offset; among them, the size of the offset threshold can be set as needed, and the embodiment of the present application does not limit this.

[0038] In the embodiment of the present application, the direction setting module 101 can set different initial offset compensation directions for different types of comparators, or can set the same initial offset compensation direction. The direction setting module 101 can set the same initial offset compensation direction for the same type of comparators with opposite polarities, or can set opposite initial offset compensation directions. This can be set as needed, and the embodiment of the present application does not limit this.

[0039] Exemplarily, for comparators with opposite polarities of type A, the initial offset directions are the same, both being "+----++++----++++..."; for comparators with opposite polarities of type B, the initial offset directions can be opposite: one is "+--++--++--++--++...", and the other is "-++--++--++--++--...".

[0040] In the embodiment of the present application, in the direction setting module 101, the initial offset compensation direction can be set through a hardware pin, or through a logic board (TCON), or through a register device (register setting) in the source driver communication data; the embodiment of the present application does not limit this.

[0041] In the embodiment of the present application, each type of comparator includes multiple groups of comparators with opposite polarities, and one of them is a reference comparator. The offset of the reference comparator is less than a preset offset threshold, and it can be used as the baseline of the offset direction of other ordinary comparators with the same polarity; thus, the direction identification module 102 can determine the positive offset direction of the positive comparator and the negative offset direction of the negative comparator for each type by using the positive reference comparator and the negative reference comparator, respectively.

[0042] In the embodiment of the present application, the direction identification module 102 can compare the output signal of the reference comparator with the output signals of other comparators of the same level to obtain a comparison result of the output signals, and determine the offset direction of the comparator according to the comparison result of the output signals; the direction identification module 102 can also use the output signal of the comparator as an input signal of a reference comparator of the same level, and determine the offset direction of the comparator according to the output signal of the reference comparator; here, for the method of determining the offset direction of other comparators of the same level through the reference comparator, it can be set as needed, and the embodiment of the present application does not limit this.

[0043] In the embodiment of the present application, after the direction identification module 102 determines the positive offset direction and the negative offset direction, it can send the positive offset direction and the negative offset direction to the direction control module 103. Thus, the direction control module 103 can determine the actual offset compensation direction of each group of comparators according to the positive offset direction of the positive comparator, the negative offset direction of the negative comparator, and the initial offset compensation direction in each group of comparators. In the embodiment of the present application, the direction control module 103 can judge whether the positive offset direction and the negative offset direction of each group of comparators are the same to obtain a judgment result, and determine the actual offset compensation direction according to the judgment result.

[0044] In some embodiments of the present application, if the initial offset compensation directions of a group of comparators are set to be the same, the direction control module 103 may, when the judgment result indicates that the positive offset direction and the negative offset direction are the same, use the initial offset compensation direction as the actual offset direction of this group of comparators; and when the judgment result indicates that the positive offset direction and the negative offset direction are different, reverse the direction of any one polarity of the comparators in the initial offset compensation direction as the actual offset direction.

[0045] Exemplarily, in Figure 3 , the initial offset compensation directions of S3 and S4 are both "+----++++----++++...". When the offset directions of S4 and S3 are opposite, S4 is connected to the positive polarity comparator, and S3 is connected to the negative polarity comparator, line2 is bright and line4 is dark; if the initial offset compensation direction of S3 is reversed, as Figure 6 shown, then line2-2B and line2-2G become dark, line2-2R and line2-1B become bright, line4-2B and line4-2G become dark, and line4-2R and line4-1B become bright; thus, both line2 and line4 have bright sub-pixels and dark sub-pixels, and there will be no horizontal stripe display problem for line2 and line4.

[0046] In some embodiments of the present application, if the initial offset compensation directions of a group of comparators are set to be opposite, the direction control module 103 may, when the judgment result indicates that the positive offset direction and the negative offset direction are different, use the initial offset compensation direction as the actual offset direction of this group of comparators; and when the judgment result indicates that the positive offset direction and the negative offset direction are the same, reverse the direction of any one polarity of the comparators in the initial offset compensation direction as the actual offset direction.

[0047] In the embodiments of the present application, the manner in which the direction control module 103 determines the actual offset compensation direction according to the positive offset direction, the negative offset direction, and the initial offset compensation direction can be set as needed, and the embodiments of the present application do not make any restrictions.

[0048] It can be understood that in any frame, since the display panel uses a group of reference comparators with opposite polarities in each category as the offset direction baseline to determine the offset directions of each group of comparators with opposite polarities in each category, and then the actual offset compensation direction can be determined according to the offset direction of the comparator and the initial offset compensation direction, thereby reducing the probability that the sub-pixels in the horizontal or vertical direction become bright or dark simultaneously, reducing the display problems of horizontal stripes and vertical stripes, and improving the display effect.

[0049] In some embodiments of the present application, the direction recognition module 102 is further configured to sequentially use the output signals of the positive comparators of each category as the first input signals of the positive reference comparators of the corresponding categories to obtain the positive output signals of each positive reference comparator in the corresponding categories; determine the positive offset directions of the corresponding positive comparators according to each positive output signal; and is further configured to sequentially use the output signals of the negative comparators of each category as the first input signals of the negative reference comparators of the corresponding categories to obtain the negative output signals of each negative reference comparator in the corresponding categories; determine the negative offset directions of the corresponding negative comparators according to each negative output signal.

[0050] In the embodiments of the present application, in addition to its original use in the circuit, each positive reference comparator of each category needs to be called by the direction recognition module 102 as the offset baseline for other positive comparators of the same category. In the embodiments of the present application, one input terminal of the positive reference comparator needs to be sequentially connected to the output terminals of other positive comparators of the same category, and the output signals of each positive comparator among the other positive comparators are sequentially used as the first input signals of the positive reference comparator, together with the second input signal of the positive reference comparator, to obtain the positive output signals corresponding to each positive comparator one by one; wherein, the voltage magnitude of the second input signal of the positive reference comparator can be set according to the operating voltage range of the positive reference comparator, and the embodiments of the present application do not make any limitations. Determine the positive offset direction of the positive comparator according to the positive output signal. Here, the positive offset direction includes a first offset direction and a second offset direction, and the first offset direction and the second offset direction are opposite directions.

[0051] In the embodiments of the present application, in addition to its original use in the circuit, each negative reference comparator of each category needs to be called by the direction recognition module 102 as the offset baseline for other negative comparators of the same category. In the embodiments of the present application, one input terminal of the negative reference comparator needs to be sequentially connected to the output terminals of other negative comparators of the same category, and the output signals of each negative comparator among the other negative comparators are sequentially used as the first input signals of the negative reference comparator, together with the second input signal of the negative reference comparator, to obtain the negative output signals corresponding to each negative comparator one by one; wherein, the voltage magnitude of the second input signal of the negative reference comparator can be set according to the operating voltage range of the negative reference comparator, and the embodiments of the present application do not make any limitations. Determine the negative offset direction of the negative comparator according to the negative output signal. Here, the negative offset direction includes a first offset direction and a second offset direction, and the first offset direction and the second offset direction are opposite directions.

[0052] In the embodiments of the present application, a switching device may also be provided between one input terminal of the reference comparator of each category and the output terminals of other comparators of the same polarity in the same category. In this way, the direction recognition module 102 can control each switching device to be closed and then opened in sequence, so that the output signals of each comparator in other comparators of the same polarity in the same category are sequentially input into the reference comparator of the corresponding category as the first input signal of the reference comparator.

[0053] It can be understood that the display panel realizes the connection relationship between the reference comparator of each category and other comparators of the same polarity through the direction recognition module, so that the display panel can determine the offset direction of multiple comparators of the same category and the same polarity through each reference comparator; in this way, the display panel only needs to replace a group of comparators with opposite polarities in the corresponding category with reference comparators, while determining the offset direction of each comparator, reducing the impact on the size of the display panel.

[0054] In some embodiments of the present application, the direction recognition module 102 is further configured to determine that the positive offset direction is the first offset direction when the voltage of the positive output signal of the positive reference comparator is greater than or equal to the positive first input voltage of the first input signal of the positive reference comparator; determine that the positive offset direction is the second offset direction when the voltage of the positive output signal of the positive reference comparator is less than the positive first input voltage of the first input signal; and, determine that the negative offset direction is the first offset direction when the voltage of the negative output signal of the negative reference comparator is greater than or equal to the negative first input voltage of the first input signal of the negative reference comparator; determine that the negative offset direction is the second offset direction when the voltage of the negative output signal of the negative reference comparator is less than the negative first input voltage.

[0055] In the embodiments of the present application, after the direction recognition module 102 determines the positive output signal of the positive reference comparator corresponding to each positive comparator, it can compare the voltage of each positive output signal with the positive first input voltage of the first input signal of the corresponding positive reference comparator. If the voltage of the positive output signal is less than the positive first input voltage, it is determined that the positive offset direction is the first offset direction, otherwise it is determined that the positive offset direction is the second offset direction. After the direction recognition module 102 determines the negative output signal of the negative reference comparator corresponding to each negative comparator, it can compare the voltage of each negative output signal with the negative first input voltage of the first input signal of the corresponding negative reference comparator. If the voltage of the negative output signal is less than the negative first input voltage, it is determined that the negative offset direction is the first offset direction, otherwise it is determined that the negative offset direction is the second offset direction.

[0056] It can be understood that the direction recognition module can compare the voltage of the output signal of the reference comparator with the voltage of the first input signal, and quickly and simply determine the offset direction of each comparator according to the comparison result, thereby improving the pertinence of the offset compensation direction and the display effect.

[0057] In some embodiments of the present application, the initial offset compensation directions of each pair of comparators with opposite polarities are the same; the direction control module 103 is further configured to, when the positive offset direction and the negative offset direction of any pair of comparators with opposite polarities are the same direction, use the initial offset compensation direction of the group of comparators as the actual offset compensation direction of the group of comparators; and, when the positive offset direction and the negative offset direction of any pair of comparators with opposite polarities are different directions, reverse the initial offset compensation direction of any one of the comparators in the group of comparators to obtain the actual offset compensation direction of the group of comparators.

[0058] In the embodiments of the present application, for any type of comparator, if the initial offset compensation directions of each pair of comparators with opposite polarities are the same, when the positive offset direction and the negative offset direction of the group of comparators are the same direction, the direction control module 103 can use the initial offset compensation direction of the group of comparators as the actual offset compensation direction.

[0059] Exemplarily, the initial offset compensation directions of S3 and S4 are the same, and the positive offset direction and the negative offset direction are also the same. The direction control module 103 can perform offset compensation on the comparators of S3 and S4 according to the initial offset compensation direction.

[0060] In the embodiments of the present application, for any type of comparator, if the initial offset compensation directions of each pair of comparators with opposite polarities are the same, when the positive offset direction and the negative offset direction of the group of comparators are different directions, the direction control module 103 can reverse the initial offset compensation direction of any one of the comparators in the initial offset compensation directions of the group of comparators to obtain a set of opposite offset compensation directions as the actual offset compensation direction of the group of comparators.

[0061] Exemplarily, the initial offset compensation directions of S3 and S4 are the same, and the positive offset direction and the negative offset direction are different. The direction control module 103 can reverse the initial offset compensation direction of S3, and keep the initial offset compensation direction of S4 unchanged to obtain a set of reverse actual offset compensation directions; or, the direction control module 103 can also reverse the initial offset compensation direction of S4, and keep the initial offset compensation direction of S3 unchanged to obtain a set of reverse actual offset compensation directions.

[0062] It can be understood that when the initial offset compensation directions of a group of comparators are the same, the direction control module needs to determine whether the initial offset compensation direction can be directly used as the actual offset compensation direction based on whether the positive offset direction and the negative offset direction of this group of comparators are the same. When the positive offset direction and the negative offset direction are different, it is necessary to reverse the initial offset compensation direction of any one of the comparators to obtain the actual offset compensation direction. The control method is simple, which improves the display efficiency of the display panel.

[0063] In some embodiments of the present application, the initial offset compensation directions of each group of comparators with opposite polarities are opposite; the direction control module is further configured to, when the positive offset direction and the negative offset direction of any group of comparators with opposite polarities are in the same direction, reverse the initial offset compensation direction of any one of the comparators in the group to obtain the actual offset direction of the group of comparators; and, when the positive offset direction and the negative offset direction of any group of comparators with opposite polarities are in opposite directions, use the initial offset compensation direction of the group of comparators as the actual offset direction of the group of comparators.

[0064] In the embodiments of the present application, for any type of comparator, if the initial offset compensation directions of each group of comparators with opposite polarities are opposite, when the positive offset direction and the negative offset direction of this group of comparators are in the same direction, the direction control module 103 can reverse the initial offset compensation direction of any one of the comparators in the initial offset compensation directions of this group of comparators to obtain a group of opposite offset compensation directions as the actual offset compensation directions of this group of comparators.

[0065] Exemplarily, the initial offset compensation directions of S3 and S4 are opposite, and the positive offset direction and the negative offset direction are the same. The direction control module 103 can reverse the initial offset compensation direction of S3, and keep the initial offset compensation direction of S4 unchanged to obtain a group of the same actual offset compensation directions; or, the direction control module 103 can also reverse the initial offset compensation direction of S4, and keep the initial offset compensation direction of S3 unchanged to obtain a group of the same actual offset compensation directions.

[0066] In the embodiments of the present application, for any type of comparator, if the initial offset compensation directions of each group of comparators with opposite polarities are opposite, when the positive offset direction and the negative offset direction of this group of comparators are in opposite directions, the direction control module 103 can use the initial offset compensation direction of this group of comparators as the actual offset compensation direction.

[0067] Exemplarily, the initial offset compensation directions of S3 and S4 are opposite, and the positive offset direction and the negative offset direction are also opposite. The direction control module 103 can perform offset compensation on the comparators of S3 and the comparators of S4 according to the initial offset compensation direction.

[0068] It can be understood that when the initial offset compensation directions of a group of comparators are opposite, the direction control module needs to determine whether the initial offset compensation direction can be directly used as the actual offset compensation direction by checking whether the positive offset direction and the negative offset direction of this group of comparators are opposite. When the positive offset direction and the negative offset direction are the same, it is necessary to reverse the initial offset compensation direction of any one of the comparators to obtain the actual offset compensation direction. The control method is simple, which improves the display efficiency of the display panel.

[0069] In some embodiments of the present application, the display panel 10 may further include a mode control module. The mode control module is configured to determine the display mode as the first mode when the preset refresh frequency is less than or equal to the refresh frequency threshold; determine the display mode as the second mode when the preset refresh frequency is greater than the refresh frequency threshold; when the display mode is the first mode, perform offset compensation on each group of comparators with opposite polarities by using the direction setting module 101, the direction identification module 102, and the direction control module 103; when the display mode is the second mode, perform offset compensation on each group of comparators with opposite polarities based on the preset offset compensation direction and the preset offset compensation direction conversion frequency.

[0070] In the embodiments of the present application, the display mode of the display panel includes a first mode and a second mode, and the mode control module can control whether the display mode of the display panel is the first mode or the second mode. Here, the mode control module can set the display mode through a hardware pin, or a timing controller (TCON), or a register setting in the source driver communication data; the embodiments of the present application do not limit this.

[0071] In the embodiments of the present application, in the first mode, the direction setting module 101 is used to set the initial offset compensation direction of each group of comparators with opposite polarities, the direction identification module 102 is used to determine the positive offset direction and the negative offset direction of each group of comparators with opposite polarities, and the direction control module 103 is used to determine the actual offset compensation direction according to the positive offset direction, the negative offset direction, and the initial offset compensation direction.

[0072] In the embodiments of the present application, the preset offset compensation direction may be the initial offset compensation direction, and the preset refresh frequency can be set as needed. The embodiments of the present application do not limit this.

[0073] In the embodiments of the present application, if the preset refresh frequency is less than or equal to the preset refresh frequency threshold, the mode control module may determine the display mode as the first mode; otherwise, the mode control module may determine the display mode as the second mode.

[0074] It can be understood that the display panel can select the second mode as the display mode under the condition of high refresh frequency, reducing the resource usage of the direction setting module, the direction recognition module, and the direction control module, and then use the first mode as the display mode under the condition of low refresh frequency; thereby improving the display effect while reducing resource consumption.

[0075] In some embodiments of the present application, at least one type of multiple groups of comparators with opposite polarities includes the comparators in the source circuit; each group of source circuits shares a group of comparators with opposite polarities; the direction control module 103 is further configured to control each group of source circuits to output an offset compensation signal according to the actual offset compensation direction.

[0076] In the embodiments of the present application, at least one type of comparators of the display panel includes the comparators in the source circuit. For example, S1 and S2 share a group of comparators with opposite polarities. In the i-th frame, S1 is connected to the positive comparator and S2 is connected to the negative comparator. In the (i + 1)-th frame, S1 is connected to the negative comparator and S2 is connected to the positive comparator. The direction control module 103 can control the source outputs such as S1 and S2 to output an offset compensation signal according to the actual offset compensation direction.

[0077] It can be understood that the direction control module can control the circuit corresponding to the comparator to output an offset compensation signal according to the actual offset compensation direction of the comparator, perform offset compensation on the comparator, and improve the accuracy of offset compensation for each comparator.

[0078] The embodiments of the present application provide a display method, which can be executed by the processor of an electronic device. Among them, the electronic device may refer to a device with display capabilities such as a laptop computer, a tablet computer, a desktop computer, a smart TV, a mobile device (such as a mobile phone, a portable video player, a personal digital assistant, a portable game device), etc. Figure 7 It is a schematic flowchart of the implementation of a display method provided by the embodiments of the present application, as Figure 7 shown, the method includes the following steps S101 to step S103:

[0079] S101. Set the initial offset compensation direction of each group of comparators with opposite polarities in each category through the direction setting module; the initial offset compensation directions of each group of comparators with opposite polarities are the same or opposite.

[0080] S102. Based on the positive reference comparator in each category, determine the positive offset direction of the positive comparator in the corresponding category through the direction recognition module, and based on the negative reference comparator in each category, determine the negative offset direction of the negative comparator in the corresponding category.

[0081] S103. Through the direction control module, determine the actual offset compensation direction of each group of comparators with opposite polarities according to the positive-pole offset direction, negative-pole offset direction, and initial offset compensation direction of each group of comparators with opposite polarities; and perform offset compensation on each group of comparators with opposite polarities according to the actual offset compensation direction.

[0082] It should be noted that for the display method, reference can be made to the above description of the display panel, which will not be elaborated here.

[0083] In some embodiments, determining the positive-pole offset direction of the positive-pole comparators in the corresponding category based on the positive-pole reference comparators in each category, and determining the negative-pole offset direction of the negative-pole comparators in the corresponding category based on the negative-pole reference comparators in each category includes: sequentially taking the output signals of the positive-pole comparators in each category as the first input signals of the corresponding positive-pole reference comparators in each category to obtain the positive-pole output signals of each positive-pole reference comparator in the corresponding category; determining the positive-pole offset direction of the corresponding positive-pole comparator according to each positive-pole output signal; and further, sequentially taking the output signals of the negative-pole comparators in each category as the first input signals of the corresponding negative-pole reference comparators in each category to obtain the negative-pole output signals of each negative-pole reference comparator in the corresponding category; determining the negative-pole offset direction of the corresponding negative-pole comparator according to each negative-pole output signal.

[0084] In some embodiments, determining the positive-pole offset direction of the corresponding positive-pole comparator according to each positive-pole output signal includes: when the voltage of the positive-pole output signal of the positive-pole reference comparator is greater than or equal to the positive-pole first input voltage of the first input signal of the positive-pole reference comparator, determining that the positive-pole offset direction is the first offset direction; when the voltage of the positive-pole output signal of the positive-pole reference comparator is less than the positive-pole first input voltage, determining that the positive-pole offset direction is the second offset direction.

[0085] In some embodiments, determining the negative-pole offset direction of the corresponding negative-pole comparator according to each negative-pole output signal includes: when the voltage of the negative-pole output signal of the negative-pole reference comparator is greater than or equal to the negative-pole first input voltage of the first input signal of the negative-pole reference comparator, determining that the negative-pole offset direction is the first offset direction; when the voltage of the negative-pole output signal of the negative-pole reference comparator is less than the negative-pole first input voltage of the negative-pole reference comparator, determining that the negative-pole offset direction is the second offset direction.

[0086] In some embodiments, the initial offset compensation directions of each pair of comparators with opposite polarities are the same; determining the actual offset compensation direction of each pair of comparators with opposite polarities according to the positive-pole offset direction, negative-pole offset direction, and initial offset compensation direction of each pair of comparators with opposite polarities includes: when the positive-pole offset direction and the negative-pole offset direction of any pair of comparators with opposite polarities are in the same direction, using the initial offset compensation direction of this pair of comparators as the actual offset compensation direction of this pair of comparators; and when the positive-pole offset direction and the negative-pole offset direction of any pair of comparators with opposite polarities are in different directions, reversing the initial offset compensation direction of any one comparator in this pair of comparators to obtain the actual offset compensation direction of this pair of comparators.

[0087] In some embodiments, the initial offset compensation directions of each pair of comparators with opposite polarities are opposite; determining the actual offset compensation direction of each pair of comparators with opposite polarities according to the positive-pole offset direction, negative-pole offset direction, and initial offset compensation direction of each pair of comparators with opposite polarities includes: when the positive-pole offset direction and the negative-pole offset direction of any pair of comparators with opposite polarities are in the same direction, reversing the initial offset compensation direction of any one comparator in this pair of comparators to obtain the actual offset direction of this pair of comparators; and when the positive-pole offset direction and the negative-pole offset direction of any pair of comparators with opposite polarities are in opposite directions, using the initial offset compensation direction of this pair of comparators as the actual offset direction of this pair of comparators in this group.

[0088] In some embodiments, the method further includes: through a mode control module, when a preset refresh frequency is less than or equal to a refresh frequency threshold, determining the display mode as a first mode; when the preset refresh frequency is greater than the refresh frequency threshold, determining the display mode as a second mode; when the display mode is the first mode, performing offset compensation on each pair of comparators with opposite polarities by using the direction setting module, the direction identification module, and the direction control module; when the display mode is the second mode, performing offset compensation on each pair of comparators with opposite polarities based on a preset offset compensation direction and a preset refresh frequency.

[0089] In some embodiments, the at least one type of multiple pairs of comparators with opposite polarities includes comparators in a source circuit; each group of source circuits shares a pair of comparators with opposite polarities; the method further includes, through the direction control module, controlling each group of source circuits to output an offset compensation signal according to the actual offset compensation direction.

[0090] Based on the above display method, an optional flowchart of a display method provided by an embodiment of the present application is as Figure 8 shown, and the method may include:

[0091] S11. The display panel is powered on.

[0092] S12. Determine whether the preset refresh frequency is less than or equal to the refresh frequency threshold; if so, execute S13 - S14; otherwise, execute S16.

[0093] S13. Call the reference comparator to determine the offset direction of the same - polarity comparator, and obtain the offset direction of each group of comparators.

[0094] It should be noted that the reference comparator includes a group of reference comparators with opposite polarities, which is called when determining the offset direction of other comparators of the same category, and is released after the determination is completed. This group of reference comparators still functions as a regular comparator.

[0095] S14. Determine whether the attribute of the offset direction of each group of comparators is consistent with the attribute of the initial offset compensation direction of this group of comparators; if so, execute S16, otherwise, execute S15.

[0096] Among them, the attribute of the offset direction of each group of comparators includes the same direction or the opposite direction; the attribute of the initial offset compensation direction of this group of comparators includes the same direction or the opposite direction.

[0097] S15. Reverse the offset compensation direction of any one in this group of comparators to obtain the actual offset compensation direction of this group of comparators.

[0098] S16. Determine the initial offset compensation direction of this group of comparators as the actual offset compensation direction of this group of comparators.

[0099] S17. Output the offset compensation signal according to the actual offset compensation direction.

[0100] S18. The display panel is powered off.

[0101] It can be understood that the display panel can determine the display mode according to the refresh frequency. In the case of a high refresh frequency, it selects the conventional second mode and directly uses the initial offset compensation direction as the actual offset compensation direction; in the case of a low refresh frequency, it selects the first mode. By calling the reference comparator to determine the offset direction of the same - polarity comparator, the offset direction of each group of comparators with opposite polarities can be obtained. Then, according to the offset direction of each group of comparators and the initial offset compensation direction of this group of comparators, the actual offset compensation direction is determined. Since the display panel can select different working modes, the compatibility of the display panel is improved.

[0102] Figure 9 The structural composition schematic diagram of an optional electronic device provided by an embodiment of the present application is shown in Figure 9As shown, the electronic device 110 includes a memory 1107, a processor 1108, and a computer program stored in the memory 1107 and executable on the processor 1108. Among them, when the processor 1108 is used to run the computer program, it executes the display method in the foregoing embodiments.

[0103] It can be understood that the electronic device 110 further includes a bus system 1109. Each component in the electronic device 110 is coupled together through the bus system 1109. It can be understood that the bus system 1109 is used to realize the connection and communication between these components. In addition to including a data bus, the bus system 1109 further includes a power bus, a control bus, and a status signal bus.

[0104] It can be understood that the memory in the embodiments of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a ferromagnetic random access memory (FRAM), a flash memory, a magnetic surface memory, an optical disc, or a compact disc read-only memory (CD-ROM); the magnetic surface memory can be a disk memory or a tape memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as a static random access memory (SRAM), a synchronous static random access memory (SSRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDR SDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a sync link dynamic random access memory (SLDRAM), and a direct rambus random access memory (DRRAM).The memories described in the embodiments of this application are intended to include, but are not limited to, these and any other suitable types of memories.

[0105] The methods disclosed in the embodiments of this application above can be applied to a processor or implemented by a processor. The processor may be an integrated circuit chip with signal processing capabilities. During implementation, the steps of the above methods can be completed by the integrated logic circuit in the hardware of the processor or by instructions in software form. The above-mentioned processor may be a general-purpose processor, a DSP, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The processor can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor may be a microprocessor or any conventional processor, etc. Combining the steps of the methods disclosed in the embodiments of this application, it can be directly embodied as being executed and completed by a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium, and this storage medium is located in the memory. The processor reads the signals in the memory and combines its hardware to complete the steps of the foregoing methods.

[0106] The embodiments of this application provide a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the above methods are implemented.

[0107] In several embodiments provided by this application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely illustrative. For example, the division of the modules is only a logical function division. In actual implementation, there may be other division methods, such as: multiple modules or components can be combined, or can be integrated into another system, or some features can be ignored, or not executed. In addition, the coupling, direct coupling, or communication connection between the various components shown or discussed with each other may be through some interfaces, and the indirect coupling or communication connection of devices or modules may be electrical, mechanical, or other forms.

[0108] As described above, it is only the embodiments of this application and is not used to limit the protection scope of this application. Any modifications, equivalent replacements, and improvements made within the spirit and scope of this application are all included in the protection scope of this application.

Claims

1. A display panel, characterized in that, Among at least one type of multiple groups of comparators with opposite polarities in the display panel, each type of multiple groups of comparators with opposite polarities includes a group of reference comparators with opposite polarities; The offset of the reference comparator is less than the offset threshold; the display panel includes: A direction setting module for setting the initial offset compensation direction of each group of comparators with opposite polarities in each category; the initial offset compensation directions of each group of comparators with opposite polarities are the same or opposite; A direction identification module for determining the positive offset direction of the positive comparators in the corresponding category through the positive reference comparators in each category, and determining the negative offset direction of the negative comparators in the corresponding category through the negative reference comparators in each category; A direction control module for determining the actual offset compensation direction of each group of comparators with opposite polarities according to the positive offset direction, the negative offset direction and the initial offset compensation direction of each group of comparators with opposite polarities; and performing offset compensation on each group of comparators with opposite polarities according to the actual offset compensation direction.

2. The display panel according to claim 1, wherein The direction identification module is further configured to sequentially use the output signals of the positive comparators in each category as the first input signals of the positive reference comparators in the corresponding category to obtain the positive output signals of each positive reference comparator in the corresponding category; determine the positive offset direction of the corresponding positive comparator according to each positive output signal; and is further configured to sequentially use the output signals of the negative comparators in each category as the first input signals of the negative reference comparators in the corresponding category to obtain the negative output signals of each negative reference comparator in the corresponding category; determine the negative offset direction of the corresponding negative comparator according to each negative output signal.

3. The display panel according to claim 2, wherein The direction identification module is further configured to determine that the positive offset direction is the first offset direction when the voltage of the positive output signal of the positive reference comparator is greater than or equal to the positive first input voltage of the first input signal of the positive reference comparator; determine that the positive offset direction is the second offset direction when the voltage of the positive output signal of the positive reference comparator is less than the positive first input voltage; and determine that the negative offset direction is the first offset direction when the voltage of the negative output signal of the negative reference comparator is greater than or equal to the negative first input voltage of the first input signal of the negative reference comparator; determine that the negative offset direction is the second offset direction when the voltage of the negative output signal of the negative reference comparator is less than the negative first input voltage.

4. The display panel according to claim 1, characterized in that, The initial offset compensation directions of each group of comparators with opposite polarities are the same; The direction control module is further configured to, when the positive offset direction and the negative offset direction of any group of comparators with opposite polarities are in the same direction, use the initial offset compensation direction of the group of comparators as the actual offset compensation direction of the group of comparators; and, when the positive offset direction and the negative offset direction of any group of comparators with opposite polarities are in different directions, reverse the initial offset compensation direction of any one comparator in the group of comparators to obtain the actual offset compensation direction of the group of comparators.

5. The display panel according to claim 1, characterized in that, The initial offset compensation directions of each group of comparators with opposite polarities are opposite to each other; The direction control module is further configured to, when the positive offset direction and the negative offset direction of any group of comparators with opposite polarities are in the same direction, reverse the initial offset compensation direction of any one comparator in the group of comparators to obtain the actual offset direction of the group of comparators; and, when the positive offset direction and the negative offset direction of any group of comparators with opposite polarities are in opposite directions, use the initial offset compensation direction of the group of comparators as the actual offset direction of the group of comparators.

6. The display panel according to claim 1, characterized in that, The display panel further includes: A mode control module, configured to determine the display mode as the first mode when a preset refresh frequency is less than or equal to a refresh frequency threshold; determine the display mode as the second mode when the preset refresh frequency is greater than the refresh frequency threshold; when the display mode is the first mode, perform offset compensation on each group of comparators with opposite polarities by using the direction setting module, the direction recognition module, and the direction control module; when the display mode is the second mode, perform offset compensation on each group of comparators with opposite polarities based on a preset offset compensation direction and a preset refresh frequency.

7. The display panel according to claim 1, wherein The at least one type of multiple groups of comparators with opposite polarities includes comparators in a source circuit; each group of source circuits shares a group of comparators with opposite polarities; The direction control module is further configured to control each group of source circuits to output an offset compensation signal according to the actual offset compensation direction.

8. A display method, characterized in that, Applied to the display panel according to any one of claims 1-7, including: Setting, by a direction setting module, the initial offset compensation direction of each group of comparators with opposite polarities in each category; the initial offset compensation directions of each group of comparators with opposite polarities are the same or opposite; Based on a positive reference comparator in each category, determining, by a direction recognition module, the positive offset direction of a positive comparator in the corresponding category, and based on a negative reference comparator in each category, determining the negative offset direction of a negative comparator in the corresponding category; Based on the positive offset direction, the negative offset direction, and the initial offset compensation direction of each group of comparators with opposite polarities, determining, by a direction control module, the actual offset compensation direction of each group of comparators with opposite polarities; and performing offset compensation on each group of comparators with opposite polarities according to the actual offset compensation direction.

9. An electronic device, characterized in that, Including: The display panel according to any one of claims 1-7, configured to perform offset compensation on each group of comparators with opposite polarities; A memory for storing a computer program; A processor for implementing the method according to claim 8 when executing the computer program stored in the memory.

10. A computer-readable storage medium, characterized in that, A computer program is stored and used to implement the method according to claim 8 when being executed by a processor.

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