Display device and display driving method

Abstract

The application relates to a display device and a display driving method. A pixel driving circuit of the display device comprises: a driving unit, a first end of the driving unit is electrically connected to a scanning line to receive a scanning signal, a second end of the driving unit is electrically connected to a data line, and a third end of the driving unit is electrically connected to a pre-storage unit. The driving unit is used for transmitting a positive polarity voltage or a negative polarity voltage of the data line to the pre-storage unit based on the scanning signal under a dynamic picture. The pre-storage unit comprises a first storage capacitor and a second storage capacitor. A switch control unit, a first end of the switch control unit is electrically connected to a control line to receive a control signal, a second end of the switch control unit is electrically connected to the first storage capacitor, and a third end of the switch control unit is electrically connected to the second storage capacitor. The switch control unit is used for transmitting a positive polarity voltage of the second storage capacitor to the first storage capacitor based on the control signal under a static picture. The application can reduce power consumption under dynamic and static pictures.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a display device and a display driving method. Background Technology

[0002] Liquid Crystal Display (LCD) panels are a widely used type of display product, and energy efficiency is a major concern. Current LCD panels have undergone some optimization in terms of materials and driving algorithms, achieving the ES8.0 energy efficiency requirements. Energy Star (ES) is a standard introduced by the United States to measure the energy efficiency of electronic products. Compared to ES8.0, the ES9.0 energy efficiency standard has much stricter requirements, and current LCD panels will struggle to meet this standard without further optimization. Therefore, how to further reduce the power consumption of display panels is an urgent problem to be solved. Summary of the Invention

[0003] In view of this, this application proposes a display device and a display driving method that can utilize a first storage capacitor instead of a second storage capacitor in dynamic scenes, thereby reducing power consumption in dynamic scenes, and perform pre-charging in static scenes, so that subsequent frames do not require continuous output from the source driver, thereby reducing power consumption in static scenes.

[0004] According to one aspect of this application, a display device is provided, the display device including a display panel and a source driver connected to the display panel, the display panel including a display area and a non-display area disposed around the display area, the display area including multiple scan lines and multiple data lines, the multiple scan lines and the multiple data lines being arranged in an insulated manner and forming multiple sub-pixels in an array, each of the sub-pixels having a pixel driving circuit, wherein the pixel driving circuit includes: a driving unit, a first terminal of the driving unit being electrically connected to the scan line to receive a scan signal, a second terminal of the driving unit being electrically connected to the data line, and a third terminal of the driving unit being... The driving unit is electrically connected to a pre-storage unit, and is used to transmit the positive or negative voltage of the data line to the pre-storage unit based on the scanning signal in a dynamic scene; wherein, the pre-storage unit includes a first storage capacitor and a second storage capacitor; a switch control unit, the first terminal of which is electrically connected to a control line to receive a control signal, the second terminal of which is electrically connected to the first storage capacitor, and the third terminal of which is electrically connected to the second storage capacitor, and is used to transmit the positive voltage of the second storage capacitor to the first storage capacitor based on the control signal in a static scene.

[0005] According to another aspect of this application, a display driving method is provided, the display driving method being applied to the panel driving circuit, the display driving method comprising: acquiring a display screen of the display panel, the display screen including a dynamic screen and a static screen; when the screen is determined to be a dynamic screen, transmitting a positive or negative voltage of a data line to a first storage capacitor based on the scanning signal; and when the screen is determined to be a static screen, transmitting a positive voltage of a second storage capacitor to the first storage capacitor based on the control signal.

[0006] By setting up a drive unit and a switch control unit, and transmitting the positive or negative voltage of the data line to the pre-storage unit based on the scanning signal in dynamic scenes, and transmitting the positive voltage of the second storage capacitor to the first storage capacitor based on the control signal in static scenes, according to various aspects of this application, the first storage capacitor can be used instead of the second storage capacitor in dynamic scenes, reducing power consumption in dynamic scenes, and pre-charging can be performed in static scenes, so that the source driver does not need to continuously output in subsequent frames, reducing power consumption in static scenes. Attached Figure Description

[0007] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0008] Figure 1 A block diagram illustrating a display device according to an embodiment of this application.

[0009] Figure 2 A block diagram showing the first switching unit and the second switching unit according to an embodiment of this application is provided.

[0010] Figure 3 A circuit diagram of a display device according to an embodiment of this application is shown.

[0011] Figure 4 A flowchart illustrating a display driving method according to an embodiment of this application is shown. Detailed Implementation

[0012] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0013] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0014] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0015] The following disclosure provides many different implementations or examples for carrying out different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials. In some instances, methods, means, elements, and circuits well known to those skilled in the art are not described in detail in order to highlight the main points of this application.

[0016] Figure 1 A block diagram illustrating a display device according to an embodiment of this application is shown. Figure 1 As shown, the display device includes a display panel 1 and a source driver 2 connected to the display panel. The display panel includes a display area 11 and a non-display area 12 surrounding the display area. The display panel 1 can be a liquid crystal display panel.

[0017] The display area includes multiple scan lines and multiple data lines, for example... Figure 1 The array comprises a first scan line G1, a second scan line G2, a third scan line G3, a first data line S1, a second data line S2, and a third data line S3. These scan lines and data lines are arranged in an insulated manner, intersecting to form an array of sub-pixels 10. Each row of sub-pixels 10 is electrically connected to a scan line, and each column of sub-pixels is electrically connected to a data line.

[0018] Each of the sub-pixels is provided with a pixel driving circuit, wherein the pixel driving circuit includes a driving unit 101 and a switch control unit 102.

[0019] In one embodiment, a first terminal of the driving unit is electrically connected to the scan line to receive a scan signal, a second terminal of the driving unit is electrically connected to the data line, and a third terminal of the driving unit is electrically connected to a pre-storage unit. The driving unit is used to transmit the positive or negative voltage of the data line to the pre-storage unit based on the scan signal during dynamic scenes. The pre-storage unit includes a first storage capacitor and a second storage capacitor. See also... Figure 2 The first terminal of the driving unit is electrically connected to the scan line G2, the second terminal of the driving unit is electrically connected to the data line S1, and the third terminal of the driving unit is electrically connected to the pre-storage unit 103. The pre-storage unit includes a first storage capacitor C1 and a second storage capacitor C2.

[0020] The first terminal of the switch control unit is electrically connected to the control line to receive a control signal, the second terminal of the switch control unit is electrically connected to the first storage capacitor C1, and the third terminal of the switch control unit is electrically connected to the second storage capacitor C2. The switch control unit is used to transmit the positive voltage of the second storage capacitor C2 to the first storage capacitor C1 based on the control signal in a static image. Figure 2 As shown, the first terminal of the switch control unit 102 is electrically connected to the control line M1, the second terminal of the switch control unit 102 is electrically connected to the first storage capacitor C1, and the third terminal of the switch control unit is electrically connected to the second storage capacitor C2.

[0021] In one embodiment, the driving unit includes a first switching unit 104 electrically connected to at least two adjacent scan lines. The first switching unit 104 includes: a first transistor T1 and a second transistor T2. A first terminal of the first transistor T1 is electrically connected to a first scan line to receive a first scan signal, a second terminal of the first transistor T1 is electrically connected to a data line, and a third terminal of the first transistor T1 is electrically connected to a first terminal of a first storage capacitor C1. The second transistor T2 has a first terminal electrically connected to a second scan line for transmitting a second scan signal, a second terminal of the second transistor T2 is electrically connected to a data line, and a third terminal of the second transistor T2 is electrically connected to a first terminal of a second storage capacitor C2.

[0022] Figure 2 This diagram shows a block diagram of the first switching unit 104 and the second switching unit 105 according to an embodiment of this application. Figure 3 A circuit diagram of a display device according to an embodiment of this application is shown. The following will be combined with... Figure 2 and Figure 3 The specific structure of the panel driving circuit is described in detail.

[0023] like Figure 2 As shown, the first switching unit 104 is electrically connected to at least two adjacent scan lines, which may be a first scan line G1 and a second scan line G2.

[0024] In one embodiment, see Figure 2 and Figure 3 The first switching unit 104 includes a first transistor T1 and a second transistor T2. The first terminal of the first transistor T1 is electrically connected to a first scan line to receive a first scan signal, the second terminal of the first transistor T1 is electrically connected to a data line, and the third terminal of the first transistor T1 is electrically connected to the first terminal of a first storage capacitor C1. The second transistor T2 has its first terminal electrically connected to a second scan line for transmitting a second scan signal, the second terminal of the second transistor T2 is electrically connected to the data line, and the third terminal of the second transistor T2 is electrically connected to the first terminal of a second storage capacitor C2.

[0025] In one embodiment, the switch control unit includes: a first multiplexer, which is electrically connected to a first terminal of the first storage capacitor C1 and a first terminal of the second storage capacitor C2.

[0026] In one embodiment, the pre-storage unit further includes a third storage capacitor C3. The first switching unit 104 is electrically connected to at least three adjacent scan lines and at least one data line, and is also electrically connected to one end of the first storage capacitor C1, one end of the second storage capacitor C2, and one end of the third storage capacitor C3, respectively. Figure 2 As shown, the first switching unit 104 can be electrically connected to three adjacent scan lines G1, G2, and G3 and a data line S1. The data line S1 can be used to write display data to the pixels electrically connected to it. It is worth noting that the pixels are arranged in rows and columns, with each row of pixels connected to at least three scan lines and each pixel connected to one data line. Optionally, each column of pixels can be connected to one data line.

[0027] See Figure 2 The driving unit further includes a second switching unit 105, which is electrically connected to at least one scan line.

[0028] In one embodiment, see Figure 2 and Figure 3 The second switching unit 105 includes: a third transistor T3, the first terminal of which is electrically connected to a third scan line for transmitting a third scan signal; the second terminal of which is electrically connected to a data line; and the third terminal of which is electrically connected to the first terminal of a third storage capacitor C3. The second terminals of the first storage capacitor C1, the second storage capacitor C2, and the third storage capacitor C3 are all electrically connected to a common electrode Vcom, and the voltage of the common electrode is a common voltage.

[0029] In one embodiment, the first transistor T1, the second transistor T2, and the third transistor T3 can all be thin-film transistors. Since the first transistor T1, the second transistor T2, and the third transistor T3 are sufficient to control the electrical connection between the scan line and the storage capacitor, this application does not need to add thin-film transistors in the pixel as in traditional pixel architectures.

[0030] In one embodiment, the switch control unit further includes a second multiplexer, which is electrically connected to the first terminal of the first storage capacitor C1 and the first terminal of the third storage capacitor C3, respectively.

[0031] In one embodiment, either the first multiplexer or the second multiplexer includes at least one transistor. Multiple transistors in the first multiplexer can be connected in series, meaning the source of one transistor is electrically connected to the drain of an adjacent transistor, and the series-connected transistors are then controlled by a first control signal. Similarly, multiple transistors in the second multiplexer can be connected in series, meaning the source of one transistor is electrically connected to the drain of an adjacent transistor, and the series-connected transistors are then controlled by a second control signal.

[0032] like Figure 3 As shown, taking the first multiplexer including a fourth transistor T4 and the second multiplexer including a fifth transistor T5 as an example, the first terminal of the fourth transistor T4 is electrically connected to the first control line M1, the second terminal of the fourth transistor T4 is electrically connected to the first terminal of the second storage capacitor C2, and the third terminal of the fourth transistor T4 is electrically connected to the first terminal of the first storage capacitor C1; the first terminal of the fifth transistor T5 is electrically connected to the second control line M2, the second terminal of the fifth transistor T5 is electrically connected to the first terminal of the third storage capacitor C3, and the third terminal of the fifth transistor T5 is electrically connected to the first terminal of the first storage capacitor C1.

[0033] The second switching unit 105 is electrically connected to the first storage capacitor C1, the second storage capacitor C2, the third storage capacitor C3, the first control line M1, and the second control line M2. It is used to transmit the positive voltage of the second storage capacitor C2 to the first storage capacitor C1 based on the first control signal of the first control line M1 in a static image, and to transmit the negative voltage of the third storage capacitor C3 to the first storage capacitor C1 based on the second control signal of the second control line M2.

[0034] In one embodiment, the display panel may further include a gate driver electrically connected to the display panel, used to output corresponding scan signals to multiple scan lines, and to output a first control signal to a first control line M1 and a second control signal to a second control line M2. The scan signals in this application can be output by the gate driver, while the data voltage on the data line, i.e., the positive or negative polarity voltage, can be output by the source driver. In practical applications, multiple gate drivers and source drivers can be provided. The first scan signal, the second scan signal, and the third scan signal can be output by the same gate driver or by different gate drivers. The first control signal and the second control signal can also be output by at least one of the gate drivers. The first control signal and the second control signal can utilize an unused output interface of the gate driver. Different data voltages can be output by the same source driver or by different source drivers.

[0035] In one embodiment, the first scan signal, the second scan signal, the third scan signal, the first control signal, and the second control signal are all pulse signals. The pulse width of the pulse signal can be set as needed, and this application does not limit it in this regard.

[0036] In one embodiment, the capacitance of the second storage capacitor C2 is at least twice the capacitance of the first storage capacitor C1, and the capacitance of the third storage capacitor C3 is at least twice the capacitance of the first storage capacitor C1. The capacitance of the first storage capacitor C1 can be the capacitance of a storage capacitor in a conventional liquid crystal display panel architecture, for example, 0.5 pF. Preferably, the capacitance of both the second storage capacitor C2 and the third storage capacitor C3 is twice the capacitance of the first storage capacitor C1, for example, 1 pF, thus ensuring the storage capacity of the second storage capacitor C2 and the third storage capacitor C3. In some embodiments, the capacitance values ​​of the second storage capacitor C2 and the third storage capacitor C3 may also be unequal. It is understood that, due to the specific type, architecture, and manufacturing process of the liquid crystal display panel, the capacitance of the first storage capacitor C1 can be adjusted according to actual needs, and this application does not limit this.

[0037] It should be noted that the transistors in this application include both N-type and P-type transistors. When the transistor is N-type, its first terminal can be the gate, its second terminal can be the source, and its third terminal can be the drain. When the transistor is P-type, its first terminal can be the gate, its second terminal can be the drain, and its third terminal can be the source. It is understood that this application does not limit the type of transistor.

[0038] Figure 4 A flowchart illustrating a display driving method according to an embodiment of this application is provided. Figure 4 As shown, this application also provides a display driving method, which is applied to the panel driving circuit, and the display driving method includes:

[0039] Step S1: Obtain the display screen of the display panel, the display screen including dynamic screen and static screen;

[0040] In one embodiment, the target display screen can be a dynamic screen or a static screen. When the target display screen is a dynamic screen, the specific display content of different frames is different; when the target display screen is a static screen, the specific display content of different frames is the same. The type of the target display screen can be determined by whether the display content changes between different frames, or by using a pre-marked flag. For example, when the corresponding flag of the target display screen is 1, the target display screen is a dynamic screen; when the corresponding flag of the target display screen is 0, the target display screen is a static screen. It is understood that there can be multiple ways to determine the type of the target display screen, and this application is not limited to any particular method.

[0041] Step S2: When it is determined that the image is a dynamic image, the positive or negative voltage of the data line is transmitted to the first storage capacitor based on the scanning signal;

[0042] Further, when it is determined that the image is a dynamic image, transmitting the positive or negative voltage of the data line to the first storage capacitor C1 based on the scanning signal includes:

[0043] Step S21: When it is determined that the screen is a dynamic screen, the gate driver is controlled to output a first scan signal, and the gate driver does not output other signals, so as to turn on the first transistor.

[0044] In one embodiment, when the target display screen is a dynamic image, the gate driver can be controlled to output a first scan signal while the gate driver does not output other signals. At this time, the high level of the first scan signal causes the first transistor T1 to be in the on state. The data voltage on the data line S1, whether positive or negative, can be normally transmitted to the first terminal of the first storage capacitor C1, controlling the liquid crystal molecules to flip. It is worth noting that since the first storage capacitor C1, the second storage capacitor C2, and the third storage capacitor C3 are all large capacitors, and the capacitance of the first storage capacitor C1 is already sufficient, only the first transistor T1 needs to be turned on during dynamic images, while the second transistor T2 and the third transistor T3 remain off, thus saving power.

[0045] Step S3: When it is determined that the image is a static image, the positive voltage of the second storage capacitor is transmitted to the first storage capacitor based on the control signal.

[0046] Further, when it is determined that the image is a static image, transmitting the positive voltage of the second storage capacitor C2 to the first storage capacitor based on the control signal includes:

[0047] Step S31: Control the second scan signal and the third scan signal so that the positive polarity voltage of the first frame and the negative polarity voltage of the second frame are pre-charged to the first storage capacitor respectively.

[0048] In one embodiment, when the target display screen is a static screen, the second transistor T2 can be controlled by the second scan signal, and the third transistor T3 can be controlled by the third scan signal to turn on at an appropriate time.

[0049] For example, in the first frame, the data voltage is a positive voltage. At this time, the high level of the second scan signal turns on the second transistor T2, and the positive voltage of data line S1 is transmitted to the second storage capacitor C2. Next, the high level of the first control signal turns on the first multiplexer, and the first terminals of the second storage capacitor C2 and the first storage capacitor C1 are connected. Therefore, the charge in the second storage capacitor C2 flows to the first storage capacitor C1 until the charges in the second storage capacitor C2 and the first storage capacitor C1 finally reach an equilibrium state. In this equilibrium state, the charge in the second storage capacitor C2 is equal to the charge in the first storage capacitor C1.

[0050] The data voltage in the second frame is negative. At this time, the high level of the third scan signal turns on the third transistor T3, and the negative voltage of data line S1 is transmitted to the third storage capacitor C3. Next, the high level of the second control signal turns on the second multiplexer, and the first terminals of the third storage capacitor C3 and the first storage capacitor C1 are connected. Therefore, the charge in the third storage capacitor C3 flows to the first storage capacitor C1 until the charges in the third storage capacitor C3 and the first storage capacitor C1 finally reach an equilibrium state. In the equilibrium state, the charge in the third storage capacitor C3 is equal to the charge in the first storage capacitor C1.

[0051] Step S32: Control the first control signal and the second control signal alternately so that the first multiplexer and the second multiplexer take turns opening and displaying other frames after the second frame.

[0052] The data voltage in the third frame is a positive voltage. At this time, the positive voltage of the second scan signal and data line S1 does not need to be transmitted. Only a high level of the first control signal is needed to activate the first multiplexer. The first terminals of the second storage capacitor C2 and the first storage capacitor C1 are in a conducting state. Thus, the charge of the second storage capacitor C2 flows to the first storage capacitor C1 until the charges of the second storage capacitor C2 and the first storage capacitor C1 finally reach an equilibrium state. In the equilibrium state, the charge of the second storage capacitor C2 is equal to the charge of the first storage capacitor C1.

[0053] The data voltage in the fourth frame is a negative voltage. At this time, the negative voltage of the third scan signal and data line S1 does not need to be transmitted. Only a high level of the second control signal is needed to activate the second multiplexer. The first terminals of the third storage capacitor C3 and the first storage capacitor C1 are in a conducting state. Thus, the charge of the third storage capacitor C3 flows to the first storage capacitor C1 until the charges of the third storage capacitor C3 and the first storage capacitor C1 finally reach an equilibrium state. In the equilibrium state, the charge of the third storage capacitor C3 is equal to the charge of the first storage capacitor C1.

[0054] The data voltage in the fifth frame is a positive voltage. At this time, the positive voltage of the second scan signal and data line S1 does not need to be transmitted. Only a high level of the first control signal is needed to activate the first multiplexer. The first terminals of the second storage capacitor C2 and the first storage capacitor C1 are in a conducting state. Thus, the charge in the second storage capacitor C2 flows to the first storage capacitor C1 until the charges of the second storage capacitor C2 and the first storage capacitor C1 finally reach an equilibrium state. In this equilibrium state, the charge of the second storage capacitor C2 is equal to the charge of the first storage capacitor C1.

[0055] The data voltage in the sixth frame is a negative voltage. At this time, the negative voltage of the third scan signal and data line S1 does not need to be transmitted. Only a high level of the second control signal is needed to activate the second multiplexer. The first terminals of the third storage capacitor C3 and the first storage capacitor C1 are in a conducting state. Thus, the charge of the third storage capacitor C3 flows to the first storage capacitor C1 until the charges of the third storage capacitor C3 and the first storage capacitor C1 finally reach an equilibrium state. In the equilibrium state, the charge of the third storage capacitor C3 is equal to the charge of the first storage capacitor C1.

[0056] Similarly, in a static image, the operation of the seventh frame, eighth frame...nth frame (n is a positive integer) also alternates in this manner. It should be noted that when the voltage of the second storage capacitor C2 is detected to be below the preset value, the pre-charging process of the first frame can be repeated; when the voltage of the third storage capacitor C3 is detected to be below the preset value, the pre-charging process of the second frame can be repeated.

[0057] Therefore, in this embodiment, after the pre-charging process of the first and second frames, the source driver can be turned off in the subsequent third, fourth, and so on. Only the gate driver needs to output the first and second control signals to control the charging process of each subsequent frame, thereby reducing power consumption when displaying static images. Simultaneously, when displaying dynamic images, since only the first scan signal is used, power consumption is also relatively reduced. It can be seen that this embodiment can achieve the goal of reducing power consumption for both dynamic and static images.

[0058] In summary, by outputting only the first scan signal when displaying dynamic images, and pre-charging the positive and negative voltages into the designed large capacitors when displaying static images, the source driver avoids continuous output, thereby reducing the power consumption of both dynamic and static images, and thus reducing the overall power consumption of the display panel.

[0059] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0060] The display device and display driving method provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A display device, characterized in that, The display device includes a display panel and a source driver connected to the display panel. The display panel includes a display area and a non-display area surrounding the display area. The display area includes multiple scan lines and multiple data lines. The multiple scan lines and multiple data lines are arranged in an insulated manner and form multiple sub-pixels in an array. Each sub-pixel is provided with a pixel driving circuit, wherein the pixel driving circuit includes: A driving unit, wherein a first terminal of the driving unit is electrically connected to the scan line to receive a scan signal, a second terminal of the driving unit is electrically connected to the data line, and a third terminal of the driving unit is electrically connected to a pre-storage unit, the driving unit being used to transmit the positive or negative voltage of the data line to the pre-storage unit based on the scan signal under dynamic conditions; wherein the pre-storage unit includes a first storage capacitor and a second storage capacitor. A switch control unit, wherein a first terminal of the switch control unit is electrically connected to a control line to receive a control signal, a second terminal of the switch control unit is electrically connected to a first storage capacitor, and a third terminal of the switch control unit is electrically connected to a second storage capacitor, the switch control unit being used to transmit the positive voltage of the second storage capacitor to the first storage capacitor based on the control signal in a static image.

2. The display device according to claim 1, characterized in that, The driving unit includes a first switching unit, which is electrically connected to at least two adjacent scan lines. The first switching unit includes: A first transistor, wherein a first terminal of the first transistor is electrically connected to a first scan line to receive a first scan signal, a second terminal of the first transistor is electrically connected to a data line, and a third terminal of the first transistor is electrically connected to a first terminal of a first storage capacitor. The second transistor has a first terminal electrically connected to a second scan line, which is used to transmit a second scan signal. The second terminal of the second transistor is electrically connected to a data line, and the third terminal of the second transistor is electrically connected to the first terminal of a second storage capacitor.

3. The display device according to claim 2, characterized in that, The switch control unit includes: A first multiplexer is electrically connected to the first terminal of the first storage capacitor and the first terminal of the second storage capacitor.

4. The display device according to claim 3, characterized in that, The pre-storage unit further includes a third storage capacitor, and the driving unit further includes a second switching unit electrically connected to at least one scan line. The second switching unit includes: The third transistor has its first terminal electrically connected to the third scan line, which is used to transmit the third scan signal. The second terminal of the third transistor is electrically connected to the data line, and the third terminal of the third transistor is electrically connected to the first terminal of the third storage capacitor. The second terminals of the first storage capacitor, the second storage capacitor, and the third storage capacitor are all electrically connected to a common electrode.

5. The display device according to claim 4, characterized in that, The switch control unit further includes: The second multiplexer is electrically connected to the first terminal of the first storage capacitor and the first terminal of the third storage capacitor, respectively.

6. The display device according to claim 5, characterized in that, Each of the first multiplexer and the second multiplexer is provided with at least one transistor, wherein the first multiplexer includes a fourth transistor, the second multiplexer includes a fifth transistor, the first terminal of the fourth transistor is electrically connected to a first control line, the second terminal of the fourth transistor is electrically connected to a first terminal of the second storage capacitor, and the third terminal of the fourth transistor is electrically connected to a first terminal of the first storage capacitor; the first terminal of the fifth transistor is electrically connected to a second control line, the second terminal of the fifth transistor is electrically connected to a first terminal of the third storage capacitor, and the third terminal of the fifth transistor is electrically connected to a first terminal of the first storage capacitor.

7. The display device according to claim 5, characterized in that, The capacitance of the second storage capacitor is at least twice the capacitance of the first storage capacitor, and the capacitance of the third storage capacitor is at least twice the capacitance of the first storage capacitor.

8. A display driving method, characterized in that, The display driving method is applied to the display device as described in any one of claims 1-7, and the display driving method includes: Acquire the display screen of the display panel, the display screen including dynamic screen and static screen; When it is determined that the image is a dynamic image, the positive or negative voltage of the data line is transmitted to the first storage capacitor based on the scanning signal. When the image is determined to be a static image, the positive voltage of the second storage capacitor is transmitted to the first storage capacitor based on the control signal.

9. The display driving method according to claim 8, characterized in that, When it is determined that the image is a dynamic image, transmitting the positive or negative voltage of the data line to the first storage capacitor based on the scanning signal includes: When the image is determined to be a dynamic image, the gate driver is controlled to output a first scan signal, and the gate driver does not output any other signals, so as to turn on the first transistor.

10. The display driving method according to claim 8, characterized in that, When it is determined that the image is a static image, the step of transferring the positive voltage of the second storage capacitor to the first storage capacitor based on the control signal includes: Control the second and third scan signals so that the positive voltage of the first frame and the negative voltage of the second frame are pre-charged to the first storage capacitor respectively. The first control signal and the second control signal are controlled alternately to enable the first multiplexer and the second multiplexer to turn on and display other frames after the second frame in turn. The first control signal is a control signal based on the first control line, and the second control signal is a control signal based on the second control line.

Images