Display panel, display apparatus, and data line group configuration method

Abstract

Disclosed are a display panel, a display apparatus, and a data line group configuration method, which relate to the technical field of display. The display panel comprises: a plurality of data lines and a plurality of switch transistors, wherein at least two data lines form a data line group; there is at least one data line group; a switch transistor is provided between any two data lines in a data line group; a control end of each switch transistor in the same data line group is connected to the same connection control signal line; and control ends of switch transistors in different data line groups are connected to different connection control signal lines. By means of selecting some of the data lines in the display panel as a data line group, and performing charge sharing on different data line groups, respectively, the swing of a data voltage that is provided can be effectively reduced, thereby further reducing the power consumption of the display panel.

Description

Display panel, display device and data line group configuration method TECHNICAL FIELD

[0001] The present application relates to the technical field of display, and provides a display panel, a display device and a data line group configuration method. BACKGROUND

[0002] With the continuous development of display technology, the resolution and refresh rate of display panels are increasingly high, and the power consumption problem of display panels is increasingly prominent. In the related art, the display panel can only share charges together as a whole frame or a whole row to save power consumption, and the output buffer power control technology can only set a fixed resistance value for a certain type of display panel. In this way, the size of the data voltage provided to the data line is fixed, and cannot be flexibly adjusted according to the actual display requirements of different pictures, resulting in large power consumption of the display panel.

[0003] SUMMARY

[0004] The embodiments of the present application provide a display panel, a display device and a data line group configuration method to reduce the power consumption of the display panel during display.

[0005] The specific technical solutions provided by the present application are as follows:

[0006] In a first aspect, the embodiments of the present application provide a display panel, comprising: a plurality of data lines and a plurality of switch tubes.

[0007] At least two data lines constitute a data line group, wherein the number of data line groups is at least one.

[0008] A switch tube is arranged between any two data lines in the data line group.

[0009] The control terminals of the switch tubes in the same data line group are connected to the same conduction control signal line.

[0010] The control terminals of the switch tubes in different data line groups are connected to different conduction control signal lines.

[0011] Optionally, the total number of data lines contained in all data line groups is less than or equal to the total number of the plurality of data lines.

[0012] Optionally, each adjacent two data line groups share one data line.

[0013] Optionally, the number of data lines in different data line groups is the same, and the number of switch tubes in different data line groups is the same.

[0014] Optionally, in the same data line group, a switch tube is arranged between each adjacent two data lines.

[0015] Optionally, the pixel architecture is that the three color channels in the same pixel unit are connected with different data lines respectively, the three color channels in the same pixel unit are connected with the same gate line, and the data line group includes the data lines in the n th column to the n+k th column, wherein k is a positive integer, and the sum of n and k is less than the total number.

[0016] Optionally, the pixel architecture is that the two color channels in the same pixel unit which are located in the same grid are connected with the same data line, the two color channels in the same grid are connected with two gate lines, and the data line group includes the data lines in the n th column to the n+k th column, wherein k is a positive integer, and the sum of n and k is less than the total number.

[0017] Optionally, the pixel architecture is that the three color channels in the same pixel unit are connected with different data lines respectively, the three color channels in the same pixel unit are connected with the same gate line, and the data line group includes the data lines in the n th column to the n+k th column, wherein the data line included in the data line group is the common data line, k is a positive integer, and the sum of n and k is less than the total number.

[0018] In a second aspect, the embodiments of the present application further provide a display device, comprising the display panel and the source driving circuit according to any one of the above.

[0019] The first output end of the source driving circuit is electrically connected with each data line, and the second output end of the source driving circuit is electrically connected with each conduction control signal line.

[0020] Optionally, the source driving circuit includes a decoding sub-circuit, a descrambling sub-circuit, a transmission control sub-circuit and a driving output sub-circuit connected in sequence.

[0021] Optionally, the driving output sub-circuit is provided with a plurality of resistance strings.

[0022] The resistance string includes a plurality of resistors connected in series, and further includes at least one switch connected in parallel with at least part of the resistors.

[0023] Optionally, the resistance string corresponds to the data line in the data line group one by one.

[0024] Optionally, the resistance string corresponds to the conduction control signal line in the data line group one by one.

[0025] Optionally, the decoding sub-circuit is configured to decode the received data stream to obtain a data voltage, a conduction signal in the conduction control signal line and a switch control signal, and transmit the data voltage, the conduction signal and the switch control signal to the driving output sub-circuit through the data voltage transmission line respectively, wherein the switch control signal is used to control the on-off of the switch.

[0026] Optionally, when the bit number of the turn-on control signal of the same turn-on control signal line is greater than 1, the turn-on control signal in the turn-on control signal line is a pulse signal with different duty cycles, and the adjustable range of the duty cycle is determined by the turn-on control signal.

[0027] Optionally, when the bit number of the switch control signal corresponding to the same resistance string is greater than 1, the on-off number of the switch in the at least one switch is determined by the switch control signal.

[0028] In a third aspect, the embodiment of the present application further provides a data line group configuration method applied to any one of the display panels, comprising:

[0029] comparing the first gray scale change value of N data lines in the display panel in the display process with the second gray scale change value of N data lines in the display process without charge sharing, wherein N is a positive integer greater than or equal to 2;

[0030] If the first gray scale change value is less than the second gray scale change value, the N data lines are configured as a data line group.

[0031] Optionally, the method further comprises:

[0032] If the adjacent first preselected data line group and the second preselected data line group share the first data line, the first preselected gray scale change value of x data lines included in the first preselected data line group in the display process with charge sharing and the second preselected gray scale change value of h data lines included in the first preselected data line group and the second preselected data line group in the display process with charge sharing are determined respectively, wherein the second preselected data line group includes y data lines, and h is the sum of x and y.

[0033] If the first preselected gray scale change value is less than the second preselected gray scale change value, the x data lines included in the first preselected data line group are configured as the first data line group, and the y data lines included in the second preselected data line group are configured as the second data line group.

[0034] If the first preselected gray scale change value is greater than the second preselected gray scale change value, the x data lines included in the first preselected data line group and the y data lines included in the second preselected data line group are configured as the first data line group, wherein the first data line group includes h data lines.

[0035] The present application has the following advantages:

[0036] To sum up, the display panel, the display device and the data line group configuration method provided in the embodiment of the present application, the display panel comprises: a plurality of data lines and a plurality of switch tubes, at least two data lines constitute a data line group, the number of the data line group is at least one, a switch tube is arranged between any two data lines in the data line group, the control end of each switch tube in the same data line group is connected with the same conduction control signal line, the control end of each switch tube in different data line groups is connected with different conduction control signal lines, the mode of selecting part of the data lines in the display panel as a data line group and respectively performing charge sharing on different data line groups can effectively reduce the swing of the provided data voltage, and further save the power consumption of the display panel.

[0037] Additional features and advantages of the application will be set forth in the description that follows, and in part will be apparent from the description, or can be learned by practice of the application. The objectives and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0038] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application. In the drawings:

[0039] FIG. 1 is a schematic diagram of the change of the voltage required to be provided to adjacent two rows of pixel units in the process of line-by-line scanning without using the CS technology in the related art;

[0040] FIG. 2 is a schematic diagram of the change of the voltage required to be provided to adjacent two rows of pixel units in the process of line-by-line scanning with using the CS technology in the related art;

[0041] FIG. 3 is a schematic diagram of the connection of the CS technology to the positive row pixel units in the related art;

[0042] FIG. 4 is a circuit connection diagram of the fixed resistance value in the PWRC technology in the related art;

[0043] FIG. 5 is a schematic diagram of the connection of each data line group in the display panel in the embodiment of the present application;

[0044] FIG. 6 is a circuit connection diagram in which the arrangement serial numbers of each data line group in the display panel in the embodiment of the present application are continuous;

[0045] FIG. 7 is a schematic diagram of each data line group under the Single gate+column pixel architecture in the embodiment of the present application;

[0046] FIG. 8 is a schematic diagram of each data line group including two data lines under the Single gate+column pixel architecture in an embodiment of the present application;

[0047] FIG. 9 is a schematic diagram of each data line group under the Dual gate+z pixel architecture in an embodiment of the present application;

[0048] FIG. 10 is a schematic diagram of each data line group including two data lines under the Dual gate+z pixel architecture in an embodiment of the present application;

[0049] FIG. 11 is a schematic diagram of each data line group under the Single gate+z pixel architecture in an embodiment of the present application;

[0050] FIG. 12 is a schematic diagram of each data line group including two data lines under the Single gate+z pixel architecture in an embodiment of the present application;

[0051] FIG. 13 is a schematic diagram of internal connection of a source driving circuit in the related art;

[0052] FIG. 14 is a schematic diagram of internal connection of a source driving circuit in an embodiment of the present application;

[0053] FIG. 15 is a schematic diagram of circuit connection of adjustable resistance value in the PWRC technology in an embodiment of the present application;

[0054] FIG. 16 is a schematic diagram of one-to-one correspondence between a resistance string and a data line in a data line group in an embodiment of the present application;

[0055] FIG. 17 is a schematic diagram of encoding of CS and PWRC in an embodiment of the present application;

[0056] FIG. 18 is a flowchart of configuring a data line group according to a gray scale change value in an embodiment of the present application;

[0057] FIG. 19 is a flowchart of merging two data line groups sharing one data line according to whether the gray scale change value in an embodiment of the present application. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the technical scheme of the present application, rather than all the embodiments. Based on the embodiments described in the present application document, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the technical scheme of the present application.

[0059] The terms "first", "second", and the like in the description and claims of the application and the above drawings are used to distinguish between similar objects and are not necessarily used to describe a particular sequential or chronological order. It will be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in other sequences than those illustrated or otherwise described herein.

[0060] Firstly, two technologies related to power consumption of display panels in the related art are introduced.

[0061] (1) Charge Sharing (CS) technology

[0062] Referring to FIG. 1, the schematic diagram shown in FIG. 1 is a schematic diagram of the change of the voltage required to be provided to adjacent two rows of pixel units in the related art without using the CS technology in the process of row-by-row scanning. After each row of pixel units in FIG. 1 is displayed, the content of the data register is transmitted to the latch circuit at the rising edge of the TP signal, and the data voltage writing to the next row of pixel units is required at the falling edge of the TP signal. As can be seen from FIG. 1, OUTn and OUTn+1 need to rise from negative voltage to positive voltage in the above process, and the voltage swing is large, and the required power consumption is large.

[0063] Referring to FIG. 2, the schematic diagram shown in FIG. 2 is a schematic diagram of the change of the voltage required to be provided to adjacent two rows of pixel units in the related art with the CS technology in the process of row-by-row scanning. In FIG. 2, it is assumed that the CS technology is applied to the entire row. Before the next row of pixel units is displayed after the display of the previous row of pixel units is completed, the data voltage of adjacent data lines is temporarily short-circuited during the high level of the row scanning signal, so that the charges of adjacent data lines are shared. In this way, the shared voltage is closer to the charging voltage required by the next row of sub-pixels, which can reduce the voltage swing in the sub-pixel charging process, improve the charging rate, and improve the display effect.

[0064] Referring to FIG. 3, in the related art, all data lines are usually shared in charge, that is, a switch tube is arranged between adjacent two data lines. When N data lines are shared, the number of the above-mentioned switch tubes is N-1, and the control ends of the above-mentioned N-1 switch tubes are connected to the same CS control line. In this way, the above-mentioned N data lines can be shared in charge at the same time, thereby saving power consumption to a certain extent. However, in some display scenarios, considering that not all data voltages corresponding to the gray scales of all data lines will change in the display process, the scheme of directly sharing all data lines in charge cannot achieve the maximum power saving.

[0065] (2) Output Buffer Power Control (PWRC) technology

[0066] Referring to FIG. 4, the resistance value set for a certain type of display panel in the PWRC technology is fixed, but in the display process, different data lines of the display panel correspond to different transmission losses when displaying different pictures. In order to ensure the display effect, the resistance value is set according to the data line with the largest transmission loss. Compared with the data line with smaller transmission loss, the generated data voltage has larger current, which causes waste of power consumption to some extent.

[0067] The preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0068] Referring to FIG. 5, a display panel provided in the embodiments of the present application includes a plurality of data lines and a plurality of switch tubes. At least two data lines constitute a data line group, wherein the number of data line groups is at least one, and a switch tube is arranged between any two data lines in the data line group. The control ends of the switch tubes in the same data line group are connected to the same conduction control signal line, and the control ends of the switch tubes in different data line groups are connected to different conduction control signal lines.

[0069] It should be noted that the minimum unit for charge sharing in the embodiments of the present application is a data line group, and the data line group is composed of at least two data lines, that is, the number of data lines included in the data line group is 2, 3, …, or L.

[0070] In order to realize charge sharing, that is, temporary short-circuiting of the data lines, a switch tube is arranged between any two data lines in the data line group. For example, when the number of data lines in the data line group is A, the number of switch tubes arranged between the data lines is A-1.

[0071] It should be further noted that the arrangement numbers of the data lines connected to the switch tubes in the same data line group are continuous or discontinuous. For example, when the arrangement numbers of the data lines included in the data line group are 1, 2, 3, and 4, the data line group has three switch tubes (assuming switch tube a, switch tube b, and switch tube c), and the arrangement numbers of the data lines connected to the three switch tubes include but are not limited to the following cases: case 1) switch tube a is connected between data line 1 and data line 2, switch tube b is connected between data line 2 and data line 3, and switch tube c is connected between data line 3 and data line 4; case 2) switch tube a is connected between data line 1 and data line 3, switch tube b is connected between data line 3 and data line 4, and switch tube c is connected between data line 4 and data line 2; and case 3) switch tube a is connected between data line 4 and data line 1, switch tube b is connected between data line 1 and data line 2, and switch tube c is connected between data line 2 and data line 3.

[0072] Preferably, for the convenience of wiring, in the same data line group, one of the switch tubes is arranged between every two adjacent data lines. For example, when the arrangement serial numbers of the data lines included in the data line group are 1, 2, 3 and 4, and there are three switch tubes (supposed to be switch tube a, switch tube b and switch tube c) in the data line group, the switch tube a is connected between the data line 1 and the data line 2, the switch tube b is connected between the data line 2 and the data line 3, and the switch tube c is connected between the data line 3 and the data line 4.

[0073] Furthermore, the control terminals of the switch tubes in the same data line group are connected with the same conduction control signal line, so that when the conduction signal in the same conduction control signal line is provided to the control terminals of the switch tubes, the switch tubes are turned on, thereby realizing the short circuit of the data lines in the same data line group for charge sharing, and when no conduction signal is received in the same conduction control signal line, the switch tubes are turned off, and the data lines in the same data line group are not subjected to charge sharing.

[0074] In order to control the charge sharing of different data line groups respectively, referring to FIG. 6, in the embodiment of the present application, the control terminals of the switch tubes in different data line groups are connected with different conduction control signal lines, so that in the implementation process, only when the conduction control signal line corresponding to the data line group receives the conduction signal, the switch tubes in the data line group are turned on, thereby realizing the charge sharing of the data lines in the data line group. Correspondingly, when the conduction control signal lines in two or more data line groups receive the conduction signal at the same time, the data lines in the two or more data line groups are subjected to charge sharing at the same time.

[0075] Exemplarily, the total number of the data lines included in all the data line groups is less than or equal to the total number of the plurality of data lines.

[0076] In the embodiment of the present application, the number of the data line groups that can be set for one display panel is uncertain. For example, when the total number of the plurality of data lines included in the display panel is d, and each data line group includes two data lines, the maximum number of the data line groups is d / 2, and the total number of the data lines included in the d / 2 data line groups is equal to the total number of the plurality of data lines. When each data line group includes more than two data lines, the total number of the data lines included in all the data line groups can also be equal to the total number of the plurality of data lines.

[0077] Preferably, considering that in some display scenarios, the gray scales corresponding to the data voltages of some data lines do not change in the display process, in order to save power consumption, the charge sharing is not needed for the data lines, so that the total number of the data lines included in all the data line groups is less than the total number of the plurality of data lines. The scheme of selecting part of the data lines for charge sharing in the display process can save the power consumption to the maximum extent.

[0078] In addition, it should be noted that when the plurality of data lines of the display panel is divided into a plurality of data line groups, the number of data lines included in the plurality of different data line groups can be the same or different, and the number of switch tubes included in the different data line groups can be the same or different.

[0079] Preferably, considering that the number of data lines in a display panel is usually large, in order to facilitate design, the number of data lines in the different data line groups is the same, and the number of switch tubes in the different data line groups is the same. In the implementation process, after determining the number of data lines included in part of the data line groups so that the power consumption of the entire display panel is minimized, the data lines in the entire display panel are divided according to the number determined above, so that a plurality of data line groups containing the same number of data lines are obtained. In this way, the number of switch tubes in each data line group is also the same.

[0080] Referring to FIG. 6, since the arrangement numbers of the plurality of data lines in the display panel are continuous, in the embodiment of the present application, after determining the plurality of data line groups, the connection of the data lines between each adjacent two data line groups is divided into the following two cases.

[0081] The first case is that the arrangement numbers of the data lines in each adjacent two data line groups are continuous, that is, there is no repetition of the arrangement numbers of the data lines in each adjacent two data line groups. Referring to FIG. 5, for example, data line group 01 includes data line 1, data line 2, data line 3, and data line 4, and data line group 02 includes data line 5, data line 6, data line 7, and data line 8.

[0082] The second case is that the arrangement numbers of the data lines in each adjacent two data line groups are repeated, that is, the data line with the arrangement number of the middle position is repeated in each adjacent two data line groups. Referring to FIG. 6, for example, data line group 01 includes data line 1, data line 2, and data line 3, and data line group 02 includes data line 3, data line 4, and data line 5. Among them, data line 3 is shared by data line group 01 and data line group 02, that is, data line 3 is repeated.

[0083] Obviously, in the first case, no switch tube needs to be arranged between the data lines between the previous data line group and the subsequent data line group. Still taking data line group 01 and data line group 02 as an example, no switch tube needs to be arranged between data line 4 and data line 5, so as to ensure that the arrangement numbers of the data lines in data line group 01 and data line group 02 are continuous.

[0084] In the second case, the switches between the data lines of the former data line group and the latter data line group are continuous, so as to ensure that the arrangement numbers of the data lines in the data line group 01 and the data line group 02 are repeated.

[0085] It should be further explained that each adjacent two data line groups share one data line, and whether the adjacent data line groups need to be combined for charge sharing also needs to be considered according to the gray scale change of the data voltage on the shared data line. Referring to FIG. 6, the data line group 03 and the data line group 04 are adjacent data line groups, and the arrangement numbers of the data lines are repeated. Under the premise that the data line 11 and the data line 12 in the data line group 03 need to be charge shared, since the data line group 04 includes the data line 12 and the data line 13, the data line 12 is shared by the data line group 03 and the data line group 04. When determining whether the data line group 04 needs to be charge shared, the data line group 03 needs to be considered, that is, whether the data line group 03 and the data line group 04 are combined to be charge shared is more power saving. The reason is that when the data line group 03 and the data line group 04 are charge shared respectively, the data voltage in the data line 12 is affected. After it is determined that the data line group 03 and the data line group 04 are combined to be charge shared, the data line group 03 and the data line group 04 are combined (that is, the data line 11, the data line 12 and the data line 13) to be charge shared. In the specific implementation process, the on-off control signal line in the data line group 03 and the on-off control signal line in the data line group 04 transmit the same on-off signal, so as to realize the charge sharing of the combined data line group.

[0086] It should be further explained that the specific number of data lines included in each data line group is determined in the design stage before the display panel is shipped. The core idea of the determination is to compare the gray scale change value of N data lines in the display process without charge sharing with the gray scale change value of the data lines in the display process with charge sharing. If it is determined that the gray scale change of the N data lines with charge sharing is smaller, the relevant N data lines are determined as a data line group, and the data line group is charge shared.

[0087] The specific implementation of the charge sharing will be described below in combination with a specific pixel architecture. The common pixel architectures mainly include the following three kinds.

[0088] (1) The pixel architecture is Single gate+column architecture

[0089] Referring to Fig. 7, in the pixel architecture, three color channels in the same pixel unit in the display panel are connected with different data lines respectively, and the three color channels in the same pixel unit are connected with the same gate line. The data line group includes the data lines in the nth column to the nth+k column, wherein k is a positive integer, and the sum of n and k is less than the total number of columns.

[0090] Taking the case that two rows of pictures need to be displayed in the display process as an example, example 1, the gray scales to be displayed by the first row sub-pixels R00, G00, B00 and R01 are +255, -255, +255, -255, and the gray scales to be displayed by the second row sub-pixels R10, G10, B10 and R11 are 0, 0, 0, 0. In this case, the gray scale value of each data line is 0 after charge sharing after the first row is displayed, which is the same as the gray scale to be displayed by the second row. Thus, the swing range of the data voltage is greatly reduced. The above four data lines are taken as a data line group, i.e. a switch tube is arranged between any two data lines in the above four data lines, and there are three switch tubes in total. The above three switch tubes are connected with a conduction control signal line, and the data line group is controlled by the conduction control signal to perform charge sharing.

[0091] The scheme of taking three data lines as a data line group is similar to the implementation process of example 1, and the difference lies in that the first row sub-pixels are R00, G00 and B00, and the second row sub-pixels are R10, G10 and B10. The implementation process is not described in detail again.

[0092] Referring to Fig. 8, the scheme of taking two data lines as a data line group is similar to the implementation process of example 1, and the difference lies in that the first row sub-pixels are R00 and G00, and the second row sub-pixels are R10 and G10. The implementation process is not described in detail again.

[0093] (2) The pixel architecture is Dual gate+z architecture

[0094] Referring to Fig. 9, in the pixel architecture, two color channels in the same pixel unit which are located in the same grid are connected with the same data line, and the two color channels are connected with two gate lines. The data line group includes the data lines in the nth column to the nth+k column, wherein k is a positive integer, and the sum of n and k is less than the total number of columns.

[0095] Taking the case that two rows of pictures need to be displayed in the display process as an example, in example 2, the gray scales to be displayed by the first row of sub-pixels R00, R01, B01 and R02 are +255, -255, +255 and -255, and the gray scales to be displayed by the second row of sub-pixels G00, B00, G01 and G02 are 0, 0, 0 and 0. In this case, the gray scale value of each data line after charge sharing after the first row is displayed is 0, which is the same as the gray scale to be displayed by the second row. Thus, the swing range of the data voltage is greatly reduced. The above four data lines are taken as a data line group, i.e. a switch tube is arranged between any two data lines in the above four data lines, and there are three switch tubes in total. The above three switch tubes are connected with a conduction control signal line, and the data line group is controlled by the conduction control signal to perform charge sharing.

[0096] The scheme of taking three data lines to form a data line group is different from the above example 2 in that the first row of sub-pixels are R00, R01 and B01, and the second row of sub-pixels are G00, B00 and G01. The implementation process is similar to that of the above example 2, and thus will not be described in detail.

[0097] Referring to Fig. 10, the scheme of taking two data lines to form a data line group is different from the above example 2 in that the first row of sub-pixels are R00 and R01, and the second row of sub-pixels are G00 and B00. The implementation process will not be described in detail.

[0098] (3) Pixel architecture is Single gate+z architecture

[0099] Referring to Fig. 11, in the pixel architecture, the three color channels in the same pixel unit are connected with different data lines respectively, the data line shared by the three color channels in the pixel units corresponding in position in adjacent rows is two, and the three color channels in the same pixel unit are connected with the same gate line. The data line group includes the data lines in the nth column to the nth+k column, wherein the data lines included in the data line group are shared data lines, k is a positive integer, and the sum of n and k is less than the total number of columns.

[0100] Taking a case that two rows of pictures need to be displayed in a display process as an example, example 3, the gray scales to be displayed by the first row of sub-pixels R00, G00, B00 and R01 are +255, -255, +255, -255, and the gray scales to be displayed by the second row of sub-pixels G10, B10, R11 and G11 are 0, 0, 0, 0, in this case, the gray scale values of the data lines are 0 after charge sharing after the first row of pictures is displayed, which is the same as the gray scales to be displayed by the second row of pictures, thus, the swing range of the data voltage is greatly reduced, the above 4 data lines are taken as a data line group, that is, 3 switching tubes are arranged between any two data lines in the above 4 data lines, the above 3 switching tubes are connected with a conduction control signal line, and the data line group is controlled by the conduction control signal to perform charge sharing.

[0101] The scheme of taking three data lines as a data line group is similar to the implementation process of example 3, and the difference lies in that the first row of sub-pixels is R00, G00 and B00, and the second row of sub-pixels is G10, B10 and R11, and the implementation process is not described in detail.

[0102] Referring to FIG. 12, the scheme of taking two data lines as a data line group is similar to the implementation process of example 3, and the difference lies in that the first row of sub-pixels is R00 and G00, and the second row of sub-pixels is G10 and B10, and the implementation process is not described in detail.

[0103] Based on the same inventive concept, the display device provided in the embodiment of the present application comprises the display panel and the source driving circuit Source Driver of any one of the above.

[0104] The first output end of the source driving circuit is electrically connected with each data line, and the second output end of the source driving circuit is electrically connected with each conduction control signal line.

[0105] In the embodiment of the present application, the display device can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like. Other essential components of the display device are understood by those skilled in the art, and are not described in detail here, and should not be regarded as a limitation on the present application.

[0106] In the related art, the output end of the source driving circuit is only electrically connected with each data line, that is, the source driving circuit is electrically connected with different data lines through the output end respectively, and each data voltage is transmitted to different data lines.

[0107] Referring to FIG. 13, after the charge sharing technology is adopted in the related art, the source driving circuit needs to transmit the turn-on signal to the turn-on control signal line in addition to transmitting the data voltage. In the related art, the source driving circuit includes a decoding sub-circuit, a demultiplexing sub-circuit, a transmission control sub-circuit, and a driving output sub-circuit connected in sequence. The demultiplexing sub-circuit and the driving output sub-circuit are electrically connected through a transmission line. The turn-on signal decoded by the demultiplexing sub-circuit is transmitted to the driving output sub-circuit through the transmission line between the demultiplexing sub-circuit and the driving output sub-circuit, and then further transmitted to the switch tube.

[0108] In the embodiment of the present application, the first output end of the source driving circuit is electrically connected with each data line, that is, the source driving circuit provides the data voltage to each data line through the first output end. The second output end of the source driving circuit is electrically connected with each turn-on control signal line, that is, the source driving circuit provides the turn-on signal to each turn-on control signal line through the second output end.

[0109] The source driving circuit in the embodiment of the present application includes a decoding sub-circuit, a demultiplexing sub-circuit, a transmission control sub-circuit, and a driving output sub-circuit connected in sequence.

[0110] Compared with the related art, referring to FIG. 14, the transmission line connected between the demultiplexing sub-circuit and the driving output sub-circuit is omitted in the present application. Instead, the turn-on signal is carried in the form of bit after the data voltage, and transmitted from the demultiplexing sub-circuit to the transmission control sub-circuit and the driving output sub-circuit through the data voltage transmission line.

[0111] In addition, considering that the transmission loss of the data lines in different columns in the display panel is different, and the size of the data voltage required by the data lines in different columns when displaying different rows of pictures is different, in the embodiment of the present application, a plurality of resistance strings are arranged in the driving output sub-circuit. Each resistance string includes a plurality of resistors connected in series. At least one switch is connected in parallel with at least part of the resistors in each resistance string.

[0112] In the implementation process, before the driving output sub-circuit outputs the data voltage through the first output end, the on-off control of the switches in the electrically connected resistance string can be used to change the resistance value of the resistance string. Referring to FIG. 15, when there are six resistors R1, R2, R3, R4, R5, and R6 connected in series in the resistance string, and the resistance values of the resistors R1, R2, R3, R4, R5, and R6 are all R, one switch, i.e., switch Swich1, Swich1, and Swich3, is connected in parallel with each of the resistors R4, R5, and R6. When the switches are all closed, the resistance value is 3R. When the switches are all open, the resistance value is 6R. The resistance values of the resistance strings are different, thereby obtaining data voltages of different sizes.

[0113] It should be noted that, in order to control the data voltage on each data line, in an embodiment, referring to FIG. 16, the above-mentioned resistance string corresponds to each data line in the data line group.

[0114] That is, the number of resistance strings in the driving output sub-circuit is equal to the total number of data lines of the display panel. By changing the resistance value of the resistance string corresponding to the data line, the driving output sub-circuit generates a data voltage of different sizes under the action of resistance strings of different resistance values, thereby providing a larger data voltage for a data line with larger transmission loss, providing a smaller data voltage for a data line with smaller transmission loss, and providing a larger data voltage for the data line when the display panel performs far-end display, and providing a smaller data voltage for the data line when the display panel performs near-end display. In this way, the power consumption can be saved on the basis of ensuring the display effect of the display panel.

[0115] In another embodiment, the above-mentioned resistance string corresponds to each on-off control signal line in the data line group.

[0116] That is, the number of resistance strings is the same as the number of data line groups. Compared with the above-mentioned mode in which the resistance string corresponds to each data line, the number of resistance strings can be reduced. The driving output sub-circuit generates a data voltage of the same size for the same data line group under the action of the above-mentioned resistance string, thereby providing a larger data voltage for a data line group with larger transmission loss, and providing a smaller data voltage for a data line group with smaller transmission loss. Alternatively, when the display panel performs far-end display, a resistance string with a smaller resistance value is set for the data line group, thereby providing a larger data voltage for the data line group, and when the display panel performs near-end display, a resistance string with a larger resistance value is set for the data line group, thereby providing a smaller data voltage for the data line group. In this way, the power consumption can be saved on the basis of ensuring the display effect of the display panel.

[0117] In the embodiment of the application, the above-mentioned decoding sub-circuit is configured to decode the received data stream to obtain a data voltage, an on signal in the on-off control signal line, and a switch control signal, and transmit the data voltage, the on signal, and the switch control signal to the driving output sub-circuit through the data voltage transmission line, respectively. The switch control signal is used to control the on-off of the switch.

[0118] In the implementation process, when the decoding sub-circuit receives the encoded data stream transmitted from the TCON, referring to FIG. 17, the encoded data stream here includes the encoding of the data voltage, the encoding of the on signal, and the encoding of the switch control signal. Common encoding is shown in Table 1. The encoding of the gray scale corresponding to the data voltage occupies 8 bits, the encoding of the on signal occupies at least 1 bit, and the encoding of the switch control signal occupies at least 1 bit. In some cases, it also contains.

[0119] The decoding sub-circuit decodes the received data stream and obtains data voltage, turn-on signal and switch control signal. In the embodiment, since the transmission line between the descrambling sub-circuit and the driving output sub-circuit is removed, the decoding sub-circuit transmits the data voltage, the turn-on signal and the switch control signal to the descrambling sub-circuit, the transmission control sub-circuit and the driving output sub-circuit respectively through the data voltage transmission line for transmitting the data voltage.

[0120] When the bit number of the turn-on signal of the same turn-on control signal line is equal to 1, the turn-on signal of the turn-on control signal line of the data line group can only control the switch tubes of the data line group to be turned on or cut off at the same time, that is, to perform charge sharing or not to perform charge sharing.

[0121] When the bit number of the turn-on signal of the same turn-on control signal line is greater than 1, the turn-on signal in the turn-on control signal line is a pulse signal with different duty cycles, and the adjustable range of the duty cycle is determined by the turn-on signal.

[0122] In the implementation process, when the bit number of the turn-on signal of the same turn-on control signal line is greater than 1, the turn-on signal of the turn-on control signal line of the data line group can control the turn-on time of the switch tubes of the data line group, that is, effectively control the time of performing charge sharing. The control mode of the above-mentioned time is realized by a pulse signal with different duty cycles, that is, the turn-on signal with a bit number greater than 1 is converted into a pulse signal form, and the adjustable range of the duty cycle in the pulse signal is determined by the turn-on signal.

[0123] In the implementation process, the values in different bit numbers are arranged and combined, so that different results of arrangement and combination are further converted into different duty cycles, and the pulse signals with adjustable duty cycles formed in this way are used to represent the different turn-on time of the turn-on signal. For example, the bit number of the turn-on signal of the same turn-on control signal line is two, and referring to Table 1, the different results of arrangement and combination 00 represent that the turn-on time of the turn-on control signal line of the data line group is 0%, 01 represents that the turn-on time of the turn-on control signal line of the data line group is 33%, 10 represents that the turn-on time of the turn-on control signal line of the data line group is 66%, and 11 represents that the turn-on time of the turn-on control signal line of the data line group is 100%.

[0124] Table 1

[0125] In addition, it should be noted that when the bit number of the switch control signal corresponding to the same resistance string is greater than 1, the on-off number of the switch in at least one switch is determined by the switch control signal.

[0126] In one embodiment, the switch control signal is used to control the on-off of at least one switch in the above-mentioned resistance string, when the switch control signal corresponding to the same resistance string occupies 1 bit, for example, the switch control signal is 1, each switch in the resistance string is opened, and the resistance value of the resistance string is maximum; correspondingly, the switch control signal is 0, each switch in the resistance string is closed, and the resistance value of the resistance string is minimum.

[0127] In another embodiment, when the bit number of the switch control signal corresponding to the same resistance string is greater than 1, for example, referring to FIG. 16, the data line group S includes 4 data lines, and the number of the corresponding resistance strings is 4, each of which includes 6 resistors, and each of the 3 resistors in each resistance string is connected in parallel with a switch, so that there are 12 switches of Switch_0-11, when the bit number of the switch control signal is 2 bits, the arrangement combination of the bit number has 4 results, and different results can control the on-off state of the switches in the resistance string, referring to Table 2.

[0128] Table 2

[0129] Based on the same inventive concept, the embodiment of the present application provides a data line group configuration method applied to the above-mentioned display panel, referring to FIG. 18, which comprises:

[0130] Step 201: comparing the size between the first gray scale change value of N data lines in the display panel in the display process with the second gray scale change value of N data lines in the display process without charge sharing, wherein N is a positive integer greater than or equal to 2.

[0131] Considering that the size of the data voltage of each data line in the display panel in the display process will change flexibly according to the display scene, that is, the gray scale change value corresponding to each data line in the display process is not fixed, and in the implementation process, it is necessary to determine how many data lines constitute a data line group in combination with the size of the gray scale change value of each data line in the display process, which will save power consumption.

[0132] In the specific implementation process, first, the first gray scale change value of N data lines in the display process under the condition of charge sharing is calculated, for example, the gray scale value of the current line is subtracted from the gray scale value of the last line when N data lines are used for charge sharing in the process of line-by-line scanning display, thereby obtaining the first gray scale change value, and here N can be a positive integer greater than or equal to 2. Then, the second gray scale change value of N data lines in the display process under the condition of not doing charge sharing is calculated, for example, the gray scale value of the current line is subtracted from the gray scale value of the last line when N data lines are not used for charge sharing in the process of line-by-line scanning display, thereby obtaining the second gray scale change value.

[0133] After the first gray scale change value and the second gray scale change value are obtained, the first gray scale change value and the second gray scale change value are compared.

[0134] In step 202, if the first gray scale change value is less than the second gray scale change value, the N data lines are configured as a data line group.

[0135] In the implementation process, if it is determined that the first gray scale change value is less than the second gray scale change value after the comparison, it indicates that the N data lines can save more power when charge sharing is performed. In this case, the N data lines are configured as a data line group, that is, a data line group includes N data lines, and the specific value of N is not limited.

[0136] Exemplarily, since each adjacent two data line groups in the embodiment of the present application can share or not share one data line, whether the adjacent two data line groups need to be combined to perform charge sharing when they share one data line, referring to FIG. 19, the method further includes:

[0137] In step 301, if the adjacent first preselected data line group and the second preselected data line group share the first data line, the first preselected gray scale change value of x data lines included in the first preselected data line group when performing charge sharing in the display process and the second preselected gray scale change value of h data lines included in the first preselected data line group and the second preselected data line group when performing charge sharing in the display process are determined, respectively, where the second preselected data line group includes y data lines, and h is the sum of x and y.

[0138] When the adjacent first preselected data line group and the second preselected data line group share the first data line, the gray scale change of the first data line in the display process will simultaneously affect the power consumption of the first preselected data line group and the second preselected data line group. Therefore, in the implementation process, whether the adjacent first preselected data line group and the second preselected data line group are combined to perform charge sharing together is considered, that is, whether the adjacent first preselected data line group and the second preselected data line group are combined into a data line group to save more power.

[0139] In the implementation process, the first preselected gray scale change value of the x data lines included in the first preselected data line group when performing charge sharing in the display process is calculated first, that is, the first preselected data line group is separately calculated as a data line group to perform charge sharing. It should be noted that the first preselected data line group can be replaced by the second preselected data line group to separately calculate the first preselected gray scale change value.

[0140] Then, a gray scale change value corresponding to charge sharing of the combination of the first preselected data line group and the second preselected data line group is determined, i.e. h data lines of x and y are configured as a data line group, and the first preselected data line group and the second preselected data line group include the second preselected gray scale change value of the h data lines in the display process.

[0141] Step 302: If the first preselected gray scale change value is less than the second preselected gray scale change value, x data lines included in the first preselected data line group are configured as the first data line group, and y data lines included in the second preselected data line group are configured as the second data line group.

[0142] In the implementation process, if the comparison shows that the first preselected gray scale change value is less than the second preselected gray scale change value, it indicates that the first preselected data line group is separately used as a data line group for charge sharing to save power consumption. In this case, x data lines included in the first preselected data line group are configured as the first data line group, and y data lines included in the second preselected data line group are configured as the second data line group.

[0143] Step 303: If the first preselected gray scale change value is greater than the second preselected gray scale change value, x data lines included in the first preselected data line group and y data lines included in the second preselected data line group are configured as the first data line group, wherein the first data line group includes h data lines.

[0144] In the implementation process, if the comparison shows that the first preselected gray scale change value is greater than the second preselected gray scale change value, it indicates that the first preselected data line group and the second preselected data line group are combined as a data line group for charge sharing to save power consumption. In this case, x data lines included in the first preselected data line group and y data lines included in the second preselected data line group are configured as the first data line group.

[0145] It should be noted that if the first preselected data line group or the second preselected data line group also shares data lines with other adjacent preselected data line groups, the above method is further used to determine whether the first preselected data line group or the second preselected data line group is combined again for charge sharing.

[0146] In summary, the display panel, display device and data line group configuration method provided in the embodiment of the present application, the display panel comprises: a plurality of data lines and a plurality of switch tubes, at least two data lines constitute a data line group, the number of the data line group is at least one, and a switch tube is arranged between any two data lines in the data line group; the control ends of the switch tubes in the same data line group are connected with the same conduction control signal line; the control ends of the switch tubes in different data line groups are connected with different conduction control signal lines; the mode of selecting part of the data lines in the display panel as a data line group and performing charge sharing on different data line groups can effectively reduce the swing of the provided data voltage, and further save the power consumption of the display panel.

[0147] Those skilled in the art will appreciate that embodiments of the present application can be provided as methods, systems, or computer program product systems. Accordingly, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application can take the form of a computer program product system implemented on one or more computer-usable storage media (including, but not limited to, disk memory, CD-ROMs, optical storage media, etc.) having computer-usable program code embodied therein.

[0148] The present application is described in reference to flowcharts and / or block diagrams of methods, apparatus (systems), and computer program product systems according to the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, as well as combinations of flows and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general purpose computer, a special purpose computer, an embedded processor, or other programmable data processing apparatus to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing apparatus create means for implementing the functions specified in the flowchart one flow or multiple flows and / or block diagram one block or multiple blocks.

[0149] These computer program instructions can also be stored in a computer readable memory that can direct the computer or other programmable data processing apparatus to work in a specific manner, so that the instructions stored in the computer readable memory produce a product including instruction means, which implements the functions specified in the flowchart one flow or multiple flows and / or block diagram one block or multiple blocks.

[0150] These computer program instructions can also be loaded into a computer or other programmable data processing devices, so that a series of operational steps are performed on the computer or other programmable devices to generate computer-implemented processes, so that the instructions executed on the computer or other programmable devices provide steps for implementing the functions specified in one or more flows in the flowchart and / or one or more blocks in the block diagram.

[0151] Obviously, various modifications and changes can be made to the present application by those skilled in the art without departing from the spirit and scope of the application. Accordingly, it is intended that the present application embrace all such modifications and changes as fall within the scope of the appended claims and their equivalents.

Claims

1. A display panel, characterized by, The display panel comprises: a plurality of data lines and a plurality of switch tubes; the at least two data lines form a data line group, wherein the number of the data line groups is at least one; a switch tube is arranged between any two data lines in the data line group; the control terminals of the switch tubes in the same data line group are connected to the same conduction control signal line; the control terminals of the switch tubes in different data line groups are connected to different conduction control signal lines.

2. The display panel of claim 1, wherein, The total number of data lines contained in all the data line groups is less than or equal to the total number of the plurality of data lines.

3. The display panel of claim 1, wherein, Each adjacent two data line groups share one data line.

4. The display panel of claim 1, wherein, The number of data lines in different data line groups is the same, and the number of switch tubes in different data line groups is the same.

5. [Amended according to Rule 91 on 17.04.2024] The display panel of claim 1, wherein, In the same data line group, a switch tube is arranged between each adjacent two data lines.

6. [Amended according to Rule 91 on 17.04.2024] The display panel according to any one of claims 1 to 5, characterized in that, The pixel architecture is that three color channels in the same pixel unit are respectively connected to different data lines, and the three color channels in the same pixel unit are all connected to the same gate line, the data line group comprises data lines in the n th column to the n+k th column, wherein k is a positive integer, and the sum of n and k is less than the total number.

7. [Amended according to Rule 91 on 17.04.2024] The display panel according to any one of claims 1 to 5, characterized in that, The pixel architecture is that two color channels in the same pixel unit which are located in the same grid are connected to the same data line, and the two color channels are connected to two gate lines, the data line group comprises data lines in the n th column to the n+k th column, wherein k is a positive integer, and the sum of n and k is less than the total number.

8. [Amended according to Rule 91 on 17.04.2024] The display panel according to any one of claims 1 to 5, characterized in that, The pixel architecture is that three color channels in the same pixel unit are respectively connected to different data lines, and the three color channels in the same pixel unit are all connected to the same gate line, the data line group comprises data lines in the n th column to the n+k th column, wherein the data lines in the data line group are the shared data lines, k is a positive integer, and the sum of n and k is less than the total number.

9. [Amended according to Rule 91 17.04.2024] A display device, characterized in that, The display panel comprises: the display panel and the source driving circuit according to any one of claims 1 to 8; the first output end of the source driving circuit is electrically connected to each data line, and the second output end of the source driving circuit is electrically connected to each conduction control signal line.

10. [Amended according to Rule 91 on 17.04.2024] The display device of claim 9, wherein, The source driving circuit comprises a decoding sub-circuit, a descrambling sub-circuit, a transmission control sub-circuit and a driving output sub-circuit connected in sequence.

11. The display device of claim 10, wherein, A plurality of resistance strings are arranged in the driving output sub-circuit. The resistance string comprises a plurality of resistors connected in series, and at least one switch is connected in parallel with at least part of the resistors in the resistance string.

12. [Amended according to Rule 91 on 17.04.2024] The display device of claim 11, wherein, The resistance string corresponds to one data line in the data line group.

13. The display device of claim 11, wherein the display device is a head-mounted display device. The resistance string corresponds to one conduction control signal line in the data line group.

14. The display device of claim 10, wherein, The decoding sub-circuit is configured to decode the received data stream to obtain a data voltage, a conduction signal in a conduction control signal line and a switch control signal, and transmit the data voltage, the conduction signal and the switch control signal to the driving output sub-circuit through a data voltage transmission line respectively, wherein the switch control signal is used to control the on-off of the switch.

15. [Amended according to Rule 91 on 17.04.2024] The display device of claim 14, wherein, When the bit number of the conduction signal of the same conduction control signal line is greater than 1, the conduction signal in the conduction control signal line is a pulse signal with different duty cycles, and the adjustable range of the duty cycle is determined by the conduction signal.

16. The display device of claim 14, wherein, When the bit number of the switch control signal corresponding to the same resistance string is greater than 1, the on-off number of the switch in the at least one switch is determined by the switch control signal.

17. [Amended according to Rule 91 on 17.04.2024] A data line group configuration method applied to the display panel according to any one of claims 1-8, characterized in that, The method comprises: comparing the size between the first gray scale change value of N data lines in the display panel during the display process of charge sharing and the second gray scale change value of the N data lines during the display process without charge sharing, wherein N is a positive integer greater than or equal to 2; if the first gray scale change value is less than the second gray scale change value, the N data lines are configured as a data line group.

18. The method of claim 17, wherein, The method further comprises: if the first preselected data line group and the second preselected data line group share a first data line, respectively determining the first preselected gray scale change value of x data lines included in the first preselected data line group during the display process of charge sharing and the second preselected gray scale change value of h data lines included in the first preselected data line group and the second preselected data line group during the display process of charge sharing, wherein the second preselected data line group includes y data lines, and the h is the sum of the x and the y; if the first preselected gray scale change value is less than the second preselected gray scale change value, x data lines included in the first preselected data line group are configured as the first data line group, and y data lines included in the second preselected data line group are configured as the second data line group; if the first preselected gray scale change value is greater than the second preselected gray scale change value, x data lines included in the first preselected data line group and y data lines included in the second preselected data line group are configured as the first data line group, wherein the first data line group includes h data lines.

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