Demultiplexer circuit, array substrate, display panel and device, and driving method
11488561 · 2022-11-01
Assignee
Inventors
Cpc classification
G09G2310/0297
PHYSICS
International classification
Abstract
Provided are a demultiplexer circuit, an array substrate, a display panel and device, and a driving method. The demultiplexer circuit includes multiple demultiplexers, each demultiplexer includes at least two switching transistor groups, and each switching transistor group includes at least two switching transistors. Sources of the at least two switching transistors in a same switching transistor group are electrically connected to each other, drains of the at least two switching transistors in the same switching transistor group are electrically connected to each other. Input ends of the at least two switching transistor groups in a same demultiplexer are electrically connected to each other. In the same switching transistor group, the common source is electrically connected to the input end, the common drain is electrically connected to the output end, and at least two control ends are electrically connected to gates of the switching transistors in a one-to-one correspondence.
Claims
1. A demultiplexer circuit, comprising a plurality of demultiplexers each comprising at least two switching transistor groups, wherein each of the at least two switching transistor groups comprises at least two switching transistors, sources of the at least two switching transistors in a same switching transistor group are electrically connected to each other to form a common source, and drains of the at least two switching transistors in the same switching transistor group are electrically connected to each other to form a common drain; wherein each of the at least two switching transistor groups comprises one input end, one output end and at least two control ends; wherein the input ends of the at least two switching transistor groups in a same demultiplexer are electrically connected to each other; and wherein in the same switching transistor group, the common source is electrically connected to the input end, the common drain is electrically connected to the output end, and the at least two control ends are electrically connected to gates of the at least two switching transistors in a one-to-one correspondence, wherein a number of turned-on switching transistors in the same switching transistor group is controlled to change a channel width-to-length ratio and a parasitic capacitance of the same switching transistor group.
2. The demultiplexer circuit of claim 1, wherein each of the at least two switching transistor groups comprises one first switching transistor and one first control end; wherein a gate of the first switching transistor is electrically connected to the first control end; and wherein each of the plurality of demultiplexers has a same number of switching transistor groups, and wherein the first control ends of the at least one switching transistor groups in different ones of the plurality of demultiplexers are electrically connected in a one-to-one correspondence.
3. The demultiplexer circuit of claim 2, wherein each of the at least two switching transistor groups further comprises one second switching transistor and one second control end; wherein a gate of the second switching transistor is electrically connected to the second control end; and wherein second control ends of switching transistor groups in different ones of the plurality of demultiplexers are electrically connected in a one-to-one correspondence.
4. The demultiplexer circuit of claim 1, wherein each of the plurality of demultiplexers comprises N switching transistor groups, and N=2, 3, 4 or 6.
5. The demultiplexer circuit of claim 1, wherein the at least two switching transistors in each of the at least two switching transistor groups have a same type, and each of the at least two switching transistors is either an N-channel metal oxide semiconductor (NMOS) transistor or a P-channel metal oxide semiconductor (PMOS) transistor.
6. An array substrate, comprising a substrate and a demultiplexer circuit disposed on the substrate, wherein the substrate comprises a display region and a non-display region adjacent to the display region, wherein the demultiplexer circuit is located in the non-display region; wherein the demultiplexer circuit comprises a plurality of demultiplexers, wherein each of the plurality of demultiplexers comprises at least two switching transistor groups, wherein each of the at least two switching transistor groups comprises at least two switching transistors; wherein sources of the at least two switching transistors in a same switching transistor group are electrically connected to each other to form a common source, and drains of the at least two switching transistors in the same switching transistor group are electrically connected to each other to form a common drain; and wherein each of the at least two switching transistor groups comprises one input end, one output end and at least two control ends; wherein input ends of the at least two switching transistor groups in a same demultiplexer are electrically connected to each other; wherein in the same switching transistor group, the common source is electrically connected to the input end, the common drain is electrically connected to the output end; and wherein the at least two control ends are electrically connected to gates of the at least two switching transistors in a one-to-one correspondence, wherein a number of turned-on switching transistors in the same switching transistor group is controlled to change a channel width-to-length ratio and a parasitic capacitance of the same switching transistor group.
7. The array substrate of claim 6, further comprising: a first conductive layer, a semiconductor layer, and a second conductive layer, all of which are disposed on the substrate, wherein in the demultiplexer circuit, a gate of each of the at least two switching transistors is disposed in the first conductive layer, a source and a drain of said switching transistor are disposed in the second conductive layer, and wherein the first conductive layer and the second conductive layer are different layers; wherein an active region of said switching transistor is disposed in the semiconductor layer; each of perpendicular projections of the source, the drain and the gate on the substrate overlaps a perpendicular projection of the active region on the substrate, and the source and the drain are electrically connected to the active region through a via.
8. The array substrate of claim 7, wherein active regions of the at least two switching transistors in the same switching transistor group are arranged along a first direction, and each of the source, the drain and the gate of each switching transistor extends along the first direction; and wherein the sources of the at least two switching transistors extend along the first direction and are connected to each other to form the common source, and the drains of the at least two switching transistors extend along the first direction and are connected to each other to form the common drain.
9. A display panel, comprising an array substrate, a plurality of data lines, and a plurality of subpixel units arranged in an array, wherein the array substrate comprises a substrate and a demultiplexer circuit disposed on the substrate, wherein the substrate comprises a display region and a non-display region adjacent to the display region, wherein the demultiplexer circuit is located in the non-display region, and wherein the demultiplexer circuit comprises a plurality of demultiplexers; wherein each of the plurality of demultiplexers comprises at least two switching transistor groups, wherein each of the at least two switching transistor groups comprises at least two switching transistors; wherein sources of the at least two switching transistors in a same switching transistor group are electrically connected to each other to form a common source, and drains of the at least two switching transistors in the same switching transistor group are electrically connected to each other to form a common drain; wherein each of the at least two switching transistor groups comprises one input end, one output end and at least two control ends, wherein input ends of the at least two switching transistor groups in a same demultiplexer are electrically connected to each other; wherein in the same switching transistor group, the common source is electrically connected to the input end, the common drain is electrically connected to the output end, and the at least two control ends are electrically connected to gates of the at least two switching transistors in a one-to-one correspondence, wherein a number of turned-on switching transistors in the same switching transistor group is controlled to change a channel width-to-length ratio and a parasitic capacitance of the same switching transistor group; and wherein in the demultiplexer circuit on the array substrate, each switching transistor group in each demultiplexer is connected to a respective one of the plurality of data lines, and wherein each of the plurality of data lines is connected to a plurality of subpixel units in a same column.
10. A method of driving the display panel of claim 9, comprising: for a same demultiplexer of the plurality of demultiplexers, providing, in a first stage, a data voltage signal having a first polarity to the input ends of the at least two switching transistor groups in the demultiplexer, and providing a control-on signal to all control ends of the at least two switching transistor groups in the demultiplexer; for the same demultiplexer, providing, in a second stage, a data voltage signal having a second polarity to the input ends of the at least two switching transistor groups in the demultiplexer; and providing a control-off signal to at least one control end of the at least two switching transistor groups in the demultiplexer, and providing the control-on signal to the other control ends of the at least two switching transistor groups in the demultiplexer; wherein the first polarity is opposite to the second polarity; and wherein a voltage difference between the data voltage signal having the first polarity and the control-on signal is less than a voltage difference between the data voltage signal having the second polarity and the control-on signal.
11. The method of driving the display panel of claim 10, wherein two adjacent demultiplexers of the plurality of demultiplexers comprise a first demultiplexer and a second demultiplexer, wherein the method comprises: for the two adjacent demultiplexers, in the first stage, providing the data voltage signal having the first polarity to an input end of the first demultiplexer, and providing the control-on signal to all control ends of the first demultiplexer; providing the data voltage signal having the second polarity to an input end of the second demultiplexer, and providing the control-off signal to at least one control end of each of the at least two switching transistor groups in the second demultiplexer and the control-on signal to other control ends of said switching transistor group in the second demultiplexer; and for the two adjacent demultiplexers, in the second stage, providing the data voltage signal having the second polarity to the input end of the first demultiplexer, and providing the control-off signal to at least one control end of each switching transistor group in the first demultiplexer and the control-on signal to other control ends of each switching transistor group in the first demultiplexer; providing the data voltage signal having the first polarity to the input end of the second demultiplexer, and providing the control-on signal to all control ends of the second demultiplexer.
12. The method of driving the display panel of claim 11, wherein each of the at least two switching transistor groups in the demultiplexer circuit comprises a first switching transistor and a first control end, and wherein a gate of the first switching transistor is electrically connected to the first control end; wherein each demultiplexer has a same number of switching transistor groups, wherein the first control ends of switching transistor groups in different demultiplexers are electrically connected in a one-to-one correspondence; wherein providing the data voltage signal having the second polarity to the input end of the second demultiplexer, and providing the control-off signal to the at least one control end of each of the two switching transistor groups in the second demultiplexer and the control-on signal to the other control ends of said switching transistor group in the second demultiplexer, providing the data voltage signal having the second polarity to the input end of the second demultiplexer, and providing the control-on signal to the first control end of each of the at least two switching transistor groups in the second demultiplexer and the control-off signal to the other control ends of each switching transistor group in the second demultiplexer; and wherein providing the data voltage signal having the second polarity to the input end of the first demultiplexer, and providing the control-off signal to the at least one control end of each switching transistor group in the first demultiplexer and the control-on signal to the other control ends of each switching transistor group in the first demultiplexer comprise: providing the data voltage signal having the second polarity to the input end of the first demultiplexer, and providing the control-on signal to the first control end of each switching transistor group in the first demultiplexer and the control-off signal to the other control ends of each switching transistor group in the first demultiplexer.
13. The method of driving the display panel of claim 10, wherein each of the at least two switching transistor groups in the demultiplexer circuit comprises a first switching transistor and a first control end, and wherein a gate of the first switching transistor is electrically connected to the first control end; wherein each demultiplexer has a same number of switching transistor groups, and wherein first control ends of switching transistor groups in different demultiplexers are electrically connected in a one-to-one correspondence; wherein each said switching transistor group further comprises a second switching transistor and a second control end, wherein a gate of the second switching transistor is electrically connected to the second control end, and second control ends of switching transistor groups in different demultiplexers are electrically connected in a one-to-one correspondence; and wherein two adjacent demultiplexers comprise a first demultiplexer and a second demultiplexer; and wherein the driving method comprises: for the two adjacent demultiplexers, in the first stage, providing the data voltage signal having the first polarity to an input end of the first demultiplexer and an input end of the second demultiplexer, and providing the control-on signal to all control ends of the first demultiplexer and the second demultiplexer; and for the two adjacent demultiplexers, in the second stage, providing the data voltage signal having the second polarity to the input end of the first demultiplexer and the input end of the second demultiplexer, and providing the control-on signal to the first control end of each switching transistor group in both of the first demultiplexer and the second demultiplexer and the control-off signal to the second control end of each switching transistor group in both of the first demultiplexer and the second demultiplexer.
14. The method of driving the display panel of claim 10, wherein the at least two switching transistors in each switching transistor group have a same type; and wherein each of the at least two switching transistors is an NMOS transistor, wherein the first polarity is positive and the second polarity is negative; or, each switching transistor is a PMOS transistor, wherein the first polarity is negative and the second polarity is positive.
15. A display device, comprising the display panel of claim 9.
Description
BRIEF DESCRIPTION OF DRAWINGS
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DETAILED DESCRIPTION
(22) The present disclosure will be further described in detail in conjunction with drawings and embodiments. It is to be understood that the embodiments described herein are intended to illustrate and not to limit the present disclosure. It is to be noted that to facilitate description, only part, not all, of structures related to the present disclosure are illustrated in the drawings.
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(24) Each switching transistor group 11 includes one input end 101, one output end 102 and at least two control ends 103, input ends 101 of the at least two switching transistor groups 11 in a same demultiplexer 10 are electrically connected to each other. In the same switching transistor group 11, the common source 1110 is electrically connected to the input end 101, the common drain 1120 is electrically connected to the output end 102, and the at least two control ends 103 are electrically connected to gates of the at least two switching transistors 113 in a one-to-one correspondence.
(25) The demultiplexer 10 is also called a data selector, which is a circuit that transfers input data to any one of multiple outputs as required. The demultiplexer circuit may realize at least two paths of inputs and multiple paths of switching outputs through the at least two demultiplexers 10 arranged therein. In the demultiplexer circuit according to the embodiments of the present disclosure, each demultiplexer 10 is composed of at least two switching transistor groups 11, as shown in
(26) The structure of the demultiplexer 10 will be introduced by taking the structure of the leftmost demultiplexer 10 as an example. First, each demultiplexer 10 may be configured to include at least two switching transistor groups 11. As shown in
(27) It is to be noted that, in the embodiments of the present disclosure, size parameters, such as the channel width-to-length ratio, of at least two switching transistors 110 in a same switching transistor group 11 may be configured to be the same or different. It is to be understood that when any two switching transistors 110 in a same switching transistor group 11 are all turned on, the two switching transistors 110 essentially constitute a large switching transistor 110, and the channel width-to-length ratio of this large switching transistor is equal to the sum of the channel width-to-length ratios of the two small switching transistors 110. As is mentioned in the background part, the channel width-length ratio of the transistor represents the parasitic capacitance of the transistor to a certain extent. Apparently, when different switching transistors 110 in a same switching transistor group 11 are controlled to be turned on, that is, to perform a selection of the width-length ratio of the switching transistor group 11, so that the parasitic capacitance in the switching transistor group 11 can be adjusted.
(28) Taking that the switching transistors shown in
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(30) On the basis of the demultiplexer circuit shown in
(31) Further, in an embodiment, in the demultiplexer circuit provided by the preceding embodiments, at least two switching transistors 110 in each switching transistor group 11 have a same type, and the switching transistors 110 may be N-channel metal oxide semiconductor (NMOS) transistors or P-channel metal oxide semiconductor (PMOS) transistors. For the demultiplexer circuit composed of PMOS transistors, the conduction of a transistor is realized when the gate-source voltage difference (Vgs) of the PMOS transistor is less than the threshold value, that is, the conduction degree of the PMOS transistor is related to the gate-source voltage difference (Vgs). Meanwhile, the conduction degree of the PMOS transistor is also related to the channel width-length ratio of the PMOS transistor. Similarly, when the voltage difference Vgs is used to control the conduction of each switching transistor group 11, part of the at least two switching transistors 110 in each switching transistor group 11 may be selected to be turned on, so that the channel width-to-length ratio of the switching transistor group 11 can be adjusted, the parasitic capacitance can be reduced, thus the power consumption of the demultiplexer circuit can be improved. In the demultiplexer circuit shown in the preceding embodiments, each demultiplexer example includes three switching transistor groups 11, that is, each demultiplexer 10 has one input and three outputs. The demultiplexer circuit is generally applied to a display panel with red subpixel units, green subpixel units and blue subpixel units. Each column of subpixel units is composed of subpixel units of a same color. The three output ends of each demultiplexer are respectively connected to a column of subpixel units, and the demultiplexer provides data signals to the three columns of subpixel units successively. Of course, those skilled in the art can also adjust the output quantity of the demultiplexer according to an actual output demand. In an embodiment, each demultiplexer includes N switching transistor groups 11, where N is an integer greater than or equal to 2. Further, in some application scenarios, it may be set that N=2, 3, 4, or 6.
(32) Based on the demultiplexer circuit provided by the preceding embodiments, the embodiments of the present disclosure further provide an array substrate.
(33) The display region 211 of the array substrate is provided with multiple scan lines extending along a row direction, multiple data lines extending along a column direction, and multiple pixel driving circuits formed by intersections of the multiple scan lines and the multiple data lines. The multiple pixel driving circuits are electrically connected to the multiple scan lines and the multiple data lines, and scan driving signals are provided by the multiple scan lines and data signals are provided by the multiple data lines, so as to realize lighting of the multiple subpixel units and form an image. The input ends of the demultiplexer circuit 100 located in the non-display region 211 are electrically connected to the driving chip, and the output ends are connected to the multiple data lines in a one-to-one correspondence. A data signal is provided to pixel driving circuits in each column successively by the driving chip, the demultiplexer circuit 100 and the data line.
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(35) In the array substrate shown in
(36) It is to be noted that the layout structure in the array substrate shown in
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(38) In the switching transistor shown in
(39) It is to be noted that in the array substrate shown in
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(41) The switching transistors 110 of the demultiplexer circuit 100 in the array substrate are bottom-gate top-contact thin film transistors, and this film structure and manufacture sequence are in an order of the substrate 21, the first conductive layer 221, the insulating layer 24, the semiconductor layer 23 and the second conductive layer 222.
(42) Additionally, in the array substrate according to the embodiments of the present disclosure, the switching transistors 110 in the demultiplexer circuit 100 may further be configured as bottom-gate bottom-contact transistors and top-gate bottom-contact thin film transistors. Those skilled in the art may design and manufacture according to an actual process equipment, which will not be described in detail herein.
(43) The embodiments of the present disclosure further provide a display panel and a driving method of the display panel.
(44) On the basis of the preceding display panel, the embodiments of the present disclosure provide the driving method of the display panel.
(45) In S110, for a same demultiplexer, in the first stage, a data voltage signal having a first polarity is provided to input ends of the at least two switching transistor groups in the demultiplexer, and a control-on signal is provided to all control ends of the at least two switching transistor groups in the demultiplexer.
(46) The data voltage signal is essentially a signal provided by the driving chip to the input ends 101 of the at least two switching transistor groups 11 in the demultiplexer, that is, a signal provided by the sources 111 of the switching transistors 110. The data voltage signal is input to the multiple data lines 210 of the display panel through the demultiplexer circuit 100, and the data voltage signal is further provided to subpixel units 220 in a column through the corresponding data line 210 to drive the subpixel units 220 to be lighted up. In an actual driving control process of the panel, the driving chip provides positive and negative data voltage signals in stages respectively. As a result, the data voltage signal having the first polarity may be a data voltage signal having a positive voltage or a negative voltage. As shown in
(47) S120, for the same demultiplexer, in the second stage, a data voltage signal having a second polarity is provided to the input ends of the at least two switching transistor groups in the demultiplexer, a control-off signal is provided to at least one control end of the at least two switching transistor groups in the demultiplexer, and the control-on signal is provided to the other control ends of the at least two switching transistor groups in the demultiplexer. The polarity of the data voltage signal having the first polarity is opposite to a polarity of the data voltage signal having the second polarity. The voltage difference between the data voltage signal having the first polarity and the control-on signal is smaller than the voltage difference between the data voltage signal having the second polarity and the control-on signal. In this stage, the data voltage signal having the second polarity is provided to the input ends 101 of the at least two switching transistor groups 11, that is, the sources 11 of the switching transistors 110, which in fact provides a data voltage signal having an opposite polarity to subpixel units 220 in a corresponding column. Since the potential of the control-on signal inputted by the gate 113 of the switching transistor 110 is fixed, the gate-source voltage difference (Vgs) formed by the data voltage signal and the control-on signal is different. If the voltage difference between the data voltage signal having the first polarity and the control-on signal is smaller than the voltage difference between the data voltage signal having the second polarity and the control-on signal, it is indicated that the gate-source voltage difference (Vgs) of the switching transistor 110 is relatively large in the second stage, and therefore, the conduction degree of the corresponding switching transistor 110 is relatively high. Generally, the control-on signal is a positive voltage signal, as shown in
(48) According to the explanation of the principle of reducing power consumption of the demultiplexer circuit, the conduction degree of the switching transistor 110 is related to both of the gate-source voltage difference (Vgs) and the channel width-to-length ratio of the switching transistor 110. On the basis of a relatively large gate-source voltage difference (Vgs) of the switching transistor in the second stage, the channel width-to-length ratio of the switching transistor may be appropriately reduced, and the conduction degree of the switching transistor may meet the requirements of the conduction. The control-off signal is provided to at least one control end 103 of the at least two switching transistor groups 11 and the control-on signal is provided to the other control ends 103 of the at least two switching transistor groups 11 in the demultiplexer, that is, at least one switching transistor 110 may be ensured to be turned on and the other switching transistors 110 to be turned off. At this time, the channel width-to-length ratio of the switching transistor group 11 is equal to the sum of the channel width-to-length ratio of the at least one turned-on switching transistor 110, and the parasitic capacitance is equal to the sum of the parasitic capacitance of the at least one turned-on switching transistor 110, thus eliminating the parasitic capacitance of the turned-off switching transistors 110 and reducing the power consumption of the demultiplexer circuit in the second stage.
(49) It is to be noted that in the first stage and the second stage, the data voltage signal having the first polarity and the data voltage signal having the second polarity which have opposite polarities are provided to data lines R1/G1/B1 through the demultiplexers in the demultiplexer circuit. The purpose is to prevent liquid crystal molecules in the liquid crystal display panel from being tilted and fixed by a fixed data voltage signal for a long time, so as to avoid the afterimage phenomenon. The data voltage signal having the first polarity and the data voltage signal having the second polarity which have opposite polarities are provided alternately by the demultiplexers, which can make the voltage applied to the liquid crystal layer alternating, and ensure the normal rotation of liquid crystal molecules and the display effect.
(50) Furthermore, on the basis of the preceding driving method of the display panel, two adjacent demultiplexers in the display panel according to the embodiments of the present disclosure may be configured to include a first demultiplexer and a second demultiplexer. For two adjacent demultiplexers, the embodiments of the present disclosure further provide a driving method of the display panel.
(51) In S210, for the two adjacent demultiplexers, in the first stage, the data voltage signal having the first polarity is provided to an input end of the first demultiplexer, and the control-on signal is provided to all control ends of the first demultiplexer. The data voltage signal having the second polarity is provided to an input end of the second demultiplexer, and the control-off signal is provided to at least one control end of each switching transistor group in the second demultiplexer, and the control-on signal is provided to the other control ends of the second demultiplexer.
(52) Similarly, in this stage, since all control ends 103 of the first demultiplexer are provided with the control-on signal, that is, all switching transistors 110 of the first demultiplexer are turned on, the channel width-to-length ratio of each switching transistor group 11 in the demultiplexer 10 is the sum of the channel width-to-length ratios of the at least two switching transistors 110 in the switching transistor group, and at this time, the parasitic capacitance of the switching transistor group 11 is also the sum of the parasitic capacitance of the at least two switching transistors 110. In the second demultiplexer adjacent to the first demultiplexer, the control-off signal is provided to at least one control end 103 of each switching transistor group 11, and the control-on signal is provided to the other control ends 103 of the second demultiplexer, which indicates that only part of the at least two switching transistors 110 are turned on and the other part of the at least two switching transistors 110 are turned off. At this time, for the second demultiplexer, the effective channel width-to-length ratio of the switching transistor group 11 is the sum of the channel width-to-length ratios of the turned-on switching transistors 110, and the parasitic capacitance is also the sum of the parasitic capacitance of the turned-on switching transistors 110. Compared with the first demultiplexer, the parasitic capacitance in the second demultiplexer is smaller and the power consumption is effectively reduced.
(53) S220, for the two adjacent demultiplexers, in the second stage, the data voltage signal having the second polarity is provided to the input end of the first demultiplexer, and the control-off signal is provided to at least one control end of each switching transistor group in the first demultiplexer, and the control-on signal is provided to other control ends of the first demultiplexer. The data voltage signal having the first polarity is provided to the input end of the second demultiplexer, and the control-on signal is provided to all control ends of the second demultiplexer.
(54) It is contrary to the first stage, in this stage, only part of the at least two switching transistors 110 in each switching transistor group 11 of the first demultiplexer are turned on, and some of the switching transistors 110 are turned off. All switching transistors 110 in each switching transistor group 11 of the second demultiplexer are turned on. Apparently, in this stage, compared with the second demultiplexer, the parasitic capacitance in the first demultiplexer is smaller and the power consumption is effectively reduced.
(55) In addition, it is to be understood by those skilled in the art that subpixel units in each column need to alternately transform the polarity of the data voltage according to the time sequence, so as to prevent the tilt fixation of the liquid crystal molecules and avoid the afterimage phenomenon. Based on this, in a same stage, the data voltage signal having the first polarity and the data voltage signal having the second polarity which have opposite polarities are provided to the input end of the first demultiplexer and the input end of the second demultiplexer respectively, which essentially provides positive and negative data signals to data lines corresponding to the two adjacent demultiplexers, and in the display panel, the data voltage signals of any two adjacent columns of subpixel units have opposite polarities, which can ensure that each frame of the display image is relatively uniform. Compared with simultaneously providing data signals having a same polarity in a same stage, and subpixel units in each column still alternately change the polarity of the data voltage in a chronological order, the flicker phenomenon of the display screen is serious and the display effect is poor.
(56) In the preceding display panel shown in
(57) The data voltage signal having the second polarity is provided to the input end of the second demultiplexer, and the control-on signal is provided to the first control end of each switching transistor group in the second demultiplexer, and the control-off signal is provided to the other control ends of the second demultiplexer. Step S140 of the driving method in which the data voltage signal having the second polarity is provided to the input end of the first demultiplexer, and the control-off signal is provided to the at least one control end of each switching transistor group in the first demultiplexer, and the control-on signal is provided to the other control ends of the first demultiplexer includes steps described below.
(58) The data voltage signal having the second polarity is provided to the input end 101 of the first demultiplexer, and the control-on signal is provided to the first control end 1031 of each switching transistor group 11 in the first demultiplexer, and the control-off signal is provided to the other control ends of the first demultiplexer.
(59) For the display panel including the demultiplexer circuit as shown in
(60) In S310, for the two adjacent demultiplexers, in the first stage, the data voltage signal having the first polarity is provided to the input end of the first demultiplexer and the input end of the second demultiplexer, and the control-on signal is provided to all control ends of the first demultiplexer and the second demultiplexer.
(61) S320, for the two adjacent demultiplexers, in the second stage, the data voltage signal having the second polarity is provided to the input end of the first demultiplexer and the input end of the second demultiplexer, and the control-on signal is provided to the first end of each switching transistor group in both of the first demultiplexer and the second demultiplexer, and the control-off signal is provided to the second control end of each switching transistor group in both of the first demultiplexer and the second demultiplexer.
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(63) It is to be noted that the preceding are only alternative embodiments of the present disclosure and the technical principles used therein. It is to be understood by those skilled in the art that the present disclosure is not limited to the embodiments described herein. Those skilled in the art can make various apparent modifications, adaptations, combinations and substitutions without departing from the scope of the present disclosure. Therefore, while the present disclosure has been described in detail via the preceding embodiments, the present disclosure is not limited to the preceding embodiments and may include other equivalent embodiments without departing from the concept of the present disclosure. The scope of the present disclosure is determined by the scope of the appended claims.