A driving apparatus of a display device, a display device, and a control method thereof

Abstract

The application discloses a driving device of a display device, the display device and a control method thereof. The driving device comprises: a power module, which is used for outputting at least a first direct-current power voltage and a second direct-current power voltage; wherein the first direct-current power voltage is greater than the second direct-current power voltage; a driving module, which is used for providing a driving signal for the display device to control the display state of a pixel structure in the display device in response to a control signal; and a control chip, which is used for outputting the control signal, controlling the driving module to output a high-voltage driving signal based on the first direct-current power voltage, or controlling the driving module to output a low-voltage driving signal based on the second direct-current power voltage. In the display device, the driving module can effectively improve the scanning signal voltage and the data signal voltage of the display device, thereby improving the driving voltage of the pixel structure in the display device and improving the display effect of the display device.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, more particularly, to a driving device of a display device, the display device and a control method thereof. BACKGROUND

[0002] At present, the display effect of the existing display device is related to the driving voltage of the pixel structure, and the driving voltage of the display device is provided by a control chip. However, the existing chip cannot output high voltage, so as to fail to improve the driving voltage of the pixel structure in the display device. For example, the electronic paper display device based on the electrophoresis technology is studied more. The electronic paper display device is generally formed by the upper and lower substrates which are attached to each other, and the electrophoresis particle film is filled therebetween. There is a common electrode on the upper substrate, and there are a plurality of pixel electrodes on the lower substrate, each of which corresponds to a pixel. However, the display effect (such as the number of gray scales, more colors, etc.) of the electronic paper is related to the driving voltage, and the driving voltage in the electronic paper is provided by the control chip. However, the existing chip cannot output high voltage, so as to fail to improve the driving voltage of each pixel electrode. SUMMARY

[0003] Therefore, the present application provides a driving device of a display device, the display device and a control method thereof. The display device comprises a pixel structure, and the driving device of the display device comprises:

[0004] a power module configured to output at least a first direct current (DC) voltage and a second DC voltage, wherein the first DC voltage is greater than the second DC voltage;

[0005] a driving module configured to provide a driving signal for the display device in response to a control signal, so as to control the display state of the pixel structure in the display device;

[0006] a control chip configured to output the control signal, and control the driving module to output a high-voltage driving signal based on the first DC voltage, or control the driving module to output a low-voltage driving signal based on the second DC voltage.

[0007] The present application provides a display device comprising:

[0008] a substrate comprising a display area and a non-display area surrounding at least a part of the display area;

[0009] a pixel structure disposed in the display area;

[0010] any one of the above-mentioned driving devices, wherein the driving device is disposed in the non-display area;

[0011] a scanning circuit and a data circuit disposed in the non-display area and connected to the driving device, respectively.

[0012] The application provides a display device control method, and a display device driving mode includes a first driving mode and a second driving mode.

[0013] The display device control method includes:

[0014] Determining the driving mode of the display device;

[0015] Based on the determined driving mode, a driving signal is provided for the display device to control the display state of the pixel structure in the display device;

[0016] When the display device is in the first driving mode, a high-voltage driving signal is output based on the first DC power supply voltage to control the display state of the pixel structure in the display device; when the display device is in the second driving mode, a low-voltage driving signal is output based on the second DC power supply voltage to control the display state of the pixel structure in the display device.

[0017] Based on the above, the application provides a display device driving device, a display device and a control method thereof. The driving module is arranged in the display device driving device, and the driving module is used to respond to the control signal output by the control chip based on the first DC power supply voltage and the second DC power supply voltage, to provide a high-voltage driving signal or a low-voltage driving signal for the display device, so as to control the display state of the pixel structure in the display device. In the display device, the driving module provides the driving signal for the display device, which can effectively improve the scanning signal voltage and the data signal voltage of the display device, thereby improving the driving voltage of the pixel structure in the display device, so that the display device realizes a higher refresh rate, and the display effect of the display device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments or the related art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only embodiments of the application, and those skilled in the art can obtain other drawings according to the provided drawings without any creative effort.

[0019] The structures, proportions, sizes, etc. shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the conditions that can be implemented by the application. Therefore, any modification of the structure, change of the proportion relationship or adjustment of the size, which does not affect the effect and purpose that can be achieved by the application, should still fall within the scope of the technical content disclosed by the application.

[0020] Figure 1 It is a structural schematic diagram of an electronic paper;

[0021] Figure 2 A structural schematic diagram of a driving device of a display device provided by an embodiment of the present application;

[0022] Figure 3 A circuit diagram of a driving module in a driving device of a display device provided by another embodiment of the present application;

[0023] Figure 4 A circuit diagram of a driving module in a driving device of a display device provided by yet another embodiment of the present application;

[0024] Figure 5 A circuit diagram of a driving module in a driving device of a display device provided by yet another embodiment of the present application;

[0025] Figure 6 A structural schematic diagram of a driving device of a display device provided by yet another embodiment of the present application;

[0026] Figure 7 A structural schematic diagram of a driving device of a display device provided by yet another embodiment of the present application;

[0027] Figure 8 A structural schematic diagram of a driving device of a display device provided by yet another embodiment of the present application;

[0028] Figure 9 A structural schematic diagram of a display device provided by yet another embodiment of the present application;

[0029] Figure 10 A flow chart of a control method of a display device provided by yet another embodiment of the present application. DETAILED DESCRIPTION

[0030] The embodiments in the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without any creative work, fall within the scope of protection of the present application.

[0031] REFERENCE Figure 1 , Figure 1As a schematic diagram of an electronic paper structure, the electronic paper display device based on electrophoresis technology is currently studied more, especially the electronic paper display device based on microcapsule electrophoresis technology. The electronic paper display device is generally formed by pasting the upper and lower substrates, and the microcapsules 101 are filled therebetween. The positively charged white titanium oxide particles and the negatively charged black carbon powder particles are encapsulated in the microcapsules 101, and the microcapsules 101 and the solution are encapsulated between the upper and lower substrates. The common electrode 102 is provided on the upper substrate, and the pixel electrode 103 is provided on the lower substrate. The pixel electrode 103 is generally arranged in a matrix form, and each pixel electrode 103 corresponds to a pixel. When a voltage is applied to the upper and lower substrates, the particles will migrate from the substrate to the substrate with opposite charges in an electrophoretic manner. When only the titanium oxide particles are located on the front of the display, the light is scattered back to the reader through the titanium oxide particles, and the display is white. When only the carbon powder particles are located on the front of the display, the black dye absorbs the incident light, and the display is black. For active electronic paper display, the lower substrate is commonly a thin film transistor (TFT) active substrate. The pixel electrode 103 is connected to the drain of the thin film transistor through a hole. The source of the thin film transistor is connected to the data line, and the gate of the thin film transistor is connected to the gate bus. Based on the above structure, the gating of each pixel is controlled by the gate bus. When the gate is turned on, the drain and the source are turned on through the active layer, and then the pixel electrode 103 is applied with a voltage by the data line. In combination with the common voltage on the common electrode 102, the electrophoretic particles are driven to move to different positions by the length of time of applying an electric field between the pixel electrode 103 and the common electrode 102 on the upper substrate, thereby realizing black and white gray scale display.

[0032] Reference Figure 1 In the electronic paper, a high voltage can achieve a higher refresh rate and drive more color electrophoretic particles. In order to improve the display effect of the electronic paper (such as the number of gray scales, more colors, etc.), the charging time of the pixel electrode 103 of the electronic paper is related to the gray scale of the electronic paper. The voltage of the common electrode 102 of the pixel structure is constant, the charging voltage values of the plurality of sub-electrodes of the pixel electrode 103 are different, and the charging voltage values of the plurality of sub-electrodes are determined based on the driving voltage value. If different gray scales are to be displayed in the electronic paper, the effect of the gray scale is determined based on the length of the charging time and the size of the driving voltage value of the plurality of sub-electrodes of the pixel electrode 103. The charging time of the plurality of sub-electrodes of the pixel electrode 103 is different, and the displayed gray scale is different. However, when the driving voltage value increases, the corresponding charging time also decreases. Therefore, it is necessary to improve the driving voltage of each pixel electrode 103, and the scan signal voltage and the data signal voltage of the thin film transistor are correspondingly improved. However, the existing chip cannot output a high-voltage scan signal, thereby limiting the display effect of the electronic paper.

[0033] Based on the above problems, the application provides a driving device of a display device, the display device and a control method thereof. The driving device of the display device is provided with a driving module for providing a high-voltage driving signal or a low-voltage driving signal for the display device in response to a control signal output by a control chip based on a first direct-current power voltage and a second direct-current power voltage, so as to control the display state of a pixel structure in the display device. The driving module can effectively improve the scanning signal voltage and the data signal voltage of the display device, thereby improving the driving voltage of the pixel structure in the display device, so that the display device can achieve a higher refresh rate and the display effect of the display device is improved.

[0034] In order to make the above-mentioned purposes, features and advantages of the application more obvious and easy to understand, the application will be further described in detail below with reference to the drawings and specific embodiments.

[0035] Reference Figure 2 , Figure 2 A structure diagram of a driving device of a display device is provided in the embodiments of the application. The application provides a driving device of a display device. The display device comprises a pixel structure, and the driving device comprises:

[0036] A power module 1 for outputting at least a first direct-current power voltage and a second direct-current power voltage; wherein the first direct-current power voltage is greater than the second direct-current power voltage;

[0037] A driving module 2 for providing a driving signal for the display device in response to a control signal, so as to control the display state of the pixel structure in the display device;

[0038] A control chip 3 for outputting a control signal, and controlling the driving module 2 to output a high-voltage driving signal based on the first direct-current power voltage, or controlling the driving module 2 to output a low-voltage driving signal based on the second direct-current power voltage.

[0039] In Figure 2 The driving device of the display device is provided with the driving module 2 for providing a high-voltage driving signal or a low-voltage driving signal for the display device in response to a control signal output by the control chip 3 based on the first direct-current power voltage and the second direct-current power voltage, so as to control the display state of the pixel structure in the display device. The driving module 2 can effectively improve the scanning signal voltage and the data signal voltage of the display device, thereby improving the driving voltage of the pixel structure in the display device, so that the display device can achieve a higher refresh rate and the display effect of the display device is improved.

[0040] Reference Figure 2The embodiment takes a driving device in an electronic paper as an example for illustration. The driving device comprises a printed circuit board 7, a power module 1, a driving module 2 and a control chip 3 on the printed circuit board 7. The power module 1 is used to provide power for the driving module 2 and the control chip 3. The driving module 2 is used to provide a driving signal for a display device based on the control of the control chip 3, so as to control the display state of the display device. The control chip 3 can be a Field Programmable Gate Array (FPGA) or a single-chip microcomputer or other integrated chip with similar functions, which is used to control the display device and an external device to communicate, and control the driving module 2 to output a driving signal with a specific time sequence.

[0041] Reference Figure 3 , Figure 3 A circuit diagram of a driving module in a driving device of a display device is provided for another embodiment of the present application. In the driving device of the display device of the embodiment, the driving module 2 comprises:

[0042] A first sub-driving module 21, which is used to provide a first driving signal for the display device based on a first direct-current power voltage V1 in response to the control of a first control signal Gn output by the control chip 3, so as to control the display state of a pixel structure in the display device.

[0043] A second sub-driving module 22, which is used to provide a second driving signal for the display device based on a second direct-current power voltage V2 in response to the control of a second control signal Mn output by the control chip 3, so as to control the display state of the pixel structure in the display device.

[0044] The voltage of the first driving signal is greater than the voltage of the second driving signal.

[0045] In Figure 3The driving device of the display device of the embodiment includes a control chip 3 and a driving module 2. The control chip 3 includes a first port and a second port. The driving module 2 includes a first sub-driving module 21 and a second sub-driving module 22. The first sub-driving module 21 has a first end and a second end. The first end is connected with the first port of the control chip 3, and is used for inputting a first control signal Gn. The first sub-driving module 21 is in an on or off state based on the first control signal Gn. The second end is connected with the power module 2. When the first sub-driving module 21 is in the on state, a first direct-current power voltage V1 is inputted based on the second end to provide a high-voltage driving signal for the display device. The second sub-driving module 22 has a third end and a fourth end. The third end is connected with the second port of the control chip 3, and is used for inputting a second control signal Mn. The second sub-driving module 22 is in an on or off state based on the second control signal Mn. The fourth end is connected with the power module 2. When the second sub-driving module 22 is in the on state, a second direct-current power voltage V2 is inputted based on the fourth end to provide a low-voltage driving signal for the display device. When the first sub-driving module 21 is in the on state, the second sub-driving module 22 is in the off state. When the second sub-driving module 22 is in the on state, the first sub-driving module 21 is in the off state.

[0046] In Figure 3 The first sub-driving module 21 includes a first transistor Q1, a second transistor Q2, a first resistor R1 and a second resistor R2.

[0047] The first transistor Q1 has a source electrode for inputting the first direct-current power voltage V1. A gate electrode of the first transistor Q1 is connected with the source electrode of the first transistor Q1 through the first resistor R1. A drain electrode of the first transistor Q1 is connected with an output end of the driving module 2 to output a first driving signal.

[0048] The second transistor Q2 has a source electrode grounded. A gate electrode of the second transistor Q2 is used for inputting the first control signal Gn. A drain electrode of the second transistor Q2 is connected with the gate electrode of the first transistor Q1 through the second resistor R2.

[0049] In Figure 3 The second sub-driving module 22 includes a third transistor Q3, a fourth transistor Q4, a third resistor R3 and a fourth resistor R4.

[0050] The third transistor Q3 has a source electrode for inputting the second direct-current power voltage V2. A gate electrode of the third transistor Q3 is connected with the source electrode of the third transistor Q3 through the third resistor R3. A drain electrode of the third transistor Q3 is connected with the output end of the driving module 2 to output a second driving signal.

[0051] The fourth transistor Q4 has a source electrode grounded. A gate electrode of the fourth transistor Q4 is used for inputting the second control signal Mn. A drain electrode of the fourth transistor Q4 is connected with the gate electrode of the third transistor Q3 through the fourth resistor R4.

[0052] InFigure 3 The driving device of the embodiment includes: a first transistor Q1, a first resistor R1, a second transistor Q2, and a second resistor R2. The gate of the second transistor Q2 is connected to the first port of the control chip 3, and is used for inputting a first control signal Gn. The first control signal Gn is a first voltage signal or a first ground signal; when the first control signal Gn is the first voltage signal, the gate of the second transistor Q2 inputs a voltage, the second transistor Q2 is turned on, the second resistor R2 is grounded, and a voltage difference is generated between the source and the gate of the first transistor Q1 due to the voltage division of the first resistor R1 and the second resistor R2, so that the first transistor Q1 is turned on, the drain of the first transistor Q1 outputs a first driving signal as the output end of the driving module 2, and the first driving signal is a first direct-current power voltage signal.

[0053] In Figure 3 The driving device of the embodiment includes: a first transistor Q1, a first resistor R1, a second transistor Q2, and a second resistor R2. The gate of the second transistor Q2 is connected to the first port of the control chip 3, and is used for inputting a first control signal Gn. The first control signal Gn is a first voltage signal or a first ground signal; when the first control signal Gn is the first voltage signal, the gate of the second transistor Q2 inputs a voltage, the second transistor Q2 is turned on, the second resistor R2 is grounded, and a voltage difference is generated between the source and the gate of the first transistor Q1 due to the voltage division of the first resistor R1 and the second resistor R2, so that the first transistor Q1 is turned on, the drain of the first transistor Q1 outputs a first driving signal as the output end of the driving module 2, and the first driving signal is a first direct-current power voltage signal.

[0054] When the first control signal Gn is the first voltage signal, the second control signal Mn is the second ground signal, the gate of the fourth transistor Q4 is grounded, the fourth transistor Q4 is turned off, the fourth resistor R4 is floating, and there is no voltage difference between the source and the gate of the third transistor Q3, so that the third transistor Q3 is turned off and cannot output the second driving signal; when the second control signal Mn is the second voltage signal, the first control signal Gn is the first ground signal, the gate of the second transistor Q2 is grounded, the second transistor Q2 is turned off, the second resistor R2 is floating, and there is no voltage difference between the source and the gate of the first transistor Q1, so that the first transistor Q1 is turned off and cannot output the first driving signal.

[0055] The first transistor Q1 is a PMOS transistor, the second transistor Q2, the third transistor Q3 and the fourth transistor Q4 are NMOS transistors, the first resistor R1, the second resistor R2, the third resistor R3 and the fourth resistor R4 are ordinary resistors, and the resistance values of the first resistor R1, the second resistor R2, the third resistor R3 and the fourth resistor R4 can be set based on actual application requirements. The types of the first transistor Q1, the second transistor Q2, the third transistor Q3 and the fourth transistor Q4 include but are not limited to the above-mentioned transistors.

[0056] Reference Figure 4 , Figure 4 A circuit diagram of a driving module in a driving device of a display device is provided in another embodiment of the present application. In the driving device of the present embodiment, the control logic of the first control signal Gn and the second control signal Mn is opposite when the driving module 2 is working.

[0057] The driving module 2 further comprises an inverting circuit 23 connected with the second sub-driving circuit 22, which is configured to input the first control signal Gn at the input end of the inverting circuit 23, output the second control signal Mn at the output end of the inverting circuit 23, and provide the second control signal Mn for the second sub-driving circuit 22 to control the conduction state of the second sub-driving circuit 22.

[0058] In Figure 4 In the driving device of the embodiment shown in the figure, the control logic of the first control signal Gn and the second control signal Mn is opposite when the driving module 2 is working, that is, when the first control signal Gn is a first voltage signal, the second control signal Mn is a second ground signal. When the first sub-driving module 21 is in a conduction state and the second sub-driving module 22 is in a closed state, the inverting circuit 23 is provided in the driving module 2, the input end of the inverting circuit 23 is connected with the input end of the first sub-driving module 21 and the first port together, configured to input the first voltage signal to the inverting circuit 23, invert the first voltage signal through the inverting circuit 23, convert the first voltage signal into the second ground signal, and connect the output end of the inverting circuit 23 with the gate of the fourth transistor Q4 in the second sub-driving module 22, configured to input the second ground signal to the second sub-driving module 22.

[0059] Reference Figure 5 , Figure 5 A circuit diagram of a driving module in a driving device of a display device is provided in another embodiment of the present application. In the driving device of the present embodiment, the control logic of the first control signal Gn and the second control signal Mn is opposite when the driving module 2 is working.

[0060] The driving module 2 further comprises an inverting circuit 23 connected with the first sub-driving circuit 21, configured to input a second control signal Mn at an input end of the inverting circuit 23, output a first control signal Gn at an output end of the inverting circuit 23, and provide the first control signal Gn for the first sub-driving circuit 21 to control the on-off state of the first sub-driving circuit 21.

[0061] In the driving device shown in Figure 5 In the driving device shown in

[0062] In the driving device shown in

[0063] In the driving device shown in Figure 4 In the driving device shown in Figure 5 The inverting circuit 23 comprises:

[0064] The fifth transistor Q5 has a gate connected with the input end of the inverting circuit 23, a source grounded, and a drain connected with a third direct current power supply voltage V3 through a fifth resistor R5, the third direct current power supply voltage V3 being greater than the second direct current power supply voltage V2 and less than the first direct current power supply voltage V1.

[0065] The drain of the fifth transistor Q5 is used as the output end of the inverting circuit 23.

[0066] In the driving device shown in Figure 4 In the driving device shown in Figure 5The inverting circuit 23 comprises a fifth transistor Q5 and a fifth resistor R5. The gate of the fifth transistor Q5 is connected with the first port or the second port as the input terminal of the inverting circuit 23, the drain of the fifth transistor Q5 is connected with the third direct current voltage V3 through the fifth resistor R5, the third direct current voltage V3 is the power voltage input from the power module 2 to the control chip 3, and the input terminal of the first sub-driving module 21 or the second sub-driving module 22 is connected on the circuit between the fifth transistor Q5 and the fifth resistor R5. When the input terminal of the inverting circuit 23 inputs the first voltage signal or the second voltage signal, the gate of the fifth transistor Q5 inputs the voltage, the source and the drain of the fifth transistor Q5 are turned on, the fifth resistor R5 is grounded through the drain of the fifth transistor Q5, that is, the output terminal of the inverting circuit 23 outputs the ground signal, and the signals of the input terminal and the output terminal of the inverting circuit 23 are opposite. When the input terminal of the inverting circuit 23 inputs the first ground signal or the second ground signal, the gate of the fifth transistor Q5 is grounded, the source and the drain of the fifth transistor Q5 are disconnected, and the potentials at both ends of the fifth resistor R5 are equal to the third direct current voltage V3, that is, the output terminal of the inverting circuit 23 outputs the third direct current voltage V3, and the signals of the input terminal and the output terminal of the inverting circuit 23 are opposite.

[0067] The inverting circuit 23 provided in the driving module 2 can reduce the number of ports of the control chip 3 and reduce the number of control signals output from the control chip 3 to the driving module 2 by half.

[0068] Reference Figure 6 , Figure 6 The structure diagram of the driving device of the display device provided in another embodiment of the application is shown in FIG. 6. In the driving device of the embodiment, the display device comprises a scanning circuit and a data circuit.

[0069] The driving device comprises two driving modules 2, which are a first driving module 4 and a second driving module 5.

[0070] The high-voltage driving signal output by the first driving module 4 is used to control the scanning circuit to output a first scanning signal, and the low-voltage driving signal output by the second driving module 5 is used to control the scanning circuit to output a second scanning signal. The voltage in the on stage of the first scanning signal is greater than the voltage in the on stage of the second scanning signal.

[0071] The high-voltage driving signal output by the second driving module 5 is used to control the data circuit to output a first data signal, and the low-voltage driving signal output by the second driving module 5 is used to control the data circuit to output a second data signal. The voltage in the on stage of the first data signal is greater than the voltage in the on stage of the second data signal.

[0072] In Figure 6The driving device of the display device shown in the embodiment comprises a scanning circuit and a data circuit, and the driving device comprises two driving modules 2 of different purposes, i.e., a first driving module 4 and a second driving module 5. The first driving module 4 is used for controlling the scanning circuit to output a scanning signal, and the second driving module 5 is used for controlling the data circuit to output a data signal. The driving device comprises at least one first driving module 4 and one second driving module 5. The number of the first driving modules 4 in the driving device is determined based on the number of input signals in each circuit of the scanning circuit, and each input signal in each circuit of the scanning circuit needs to be used in combination with a first driving module 4. The number of the second driving modules 5 in the driving device is determined based on the multiplexing condition of the data circuit. When the switches of the multiplexing circuit in the data circuit all use a single P-type thin film transistor or a single N-type thin film transistor, each input signal in the multiplexing circuit needs to be used in combination with a second driving module 5. When the switches of the multiplexing circuit in the data circuit use a plurality of P-type thin film transistors and / or a plurality of N-type thin film transistors, each input signal in the multiplexing circuit needs to be used in combination with a plurality of second driving modules 5, and the number of the second driving modules 5 depends on the number of the P-type thin film transistors and the number of the N-type thin film transistors. For example, when the switches of the multiplexing circuit use one P-type thin film transistor and one N-type thin film transistor, each input signal in the multiplexing circuit needs to be used in combination with two second driving modules 5. When the switches of the multiplexing circuit use a plurality of P-type thin film transistors and / or a plurality of N-type thin film transistors, the switches are equivalent to a plurality of switches in parallel, which can effectively reduce the on-resistance, so that the charging speed is faster.

[0073] Reference Figure 7 , Figure 7 A structural schematic diagram of a driving device of a display device is provided in another embodiment of the present application. In the driving device of the embodiment, the power supply module 1 comprises:

[0074] The first power supply circuit 11 is connected with the control chip 3 and is used for providing power supply for the control chip 3.

[0075] The second power supply circuit 12 is connected with the first driving module 4 and the second driving module 5 respectively and is used for providing the first direct-current power supply voltage V1 for the first driving module 4 and the second driving module 5.

[0076] The third power supply circuit 13 is connected with the first driving module 4 and the second driving module 5 respectively and is used for providing the second direct-current power supply voltage V2 for the first driving module 4 and the second driving module 5.

[0077] In Figure 7The power module 1 in the driving device of the embodiment shown comprises a first power supply circuit 11, a second power supply circuit 12, a third power supply circuit 13 and a power supply 14, and the first power supply circuit 11, the second power supply circuit 12 and the third power supply circuit 13 are connected with the power supply 14. The power supply 14 transmits a power supply voltage to the first power supply circuit 11, the second power supply circuit 12 and the third power supply circuit 13, and the voltage is converted into a required power supply voltage by the first power supply circuit 11, the second power supply circuit 12 and the third power supply circuit 13 and then input into the driving device. The first power supply circuit 11 comprises a first step-down conversion unit 111, a first low-dropout linear voltage stabilizing unit 112, a second low-dropout linear voltage stabilizing unit 113 and a third low-dropout linear voltage stabilizing unit 114; the second power supply circuit 12 comprises a first step-up conversion unit 121; the third power supply circuit 13 comprises a second step-down conversion unit 131; the first step-down conversion unit 111 is used to provide a third direct current power supply voltage V3 for the first low-dropout linear voltage stabilizing unit 112, the second low-dropout linear voltage stabilizing unit 113 and the third low-dropout linear voltage stabilizing unit 114; the first step-up conversion unit 121 is used to provide a first direct current power supply voltage V1 for the first driving module 4 and the second driving module 5; the second step-down conversion unit 131 is used to provide a second direct current power supply voltage V2 for the first driving module 4 and the second driving module 5; the first low-dropout linear voltage stabilizing unit 112 and the second low-dropout linear voltage stabilizing unit 113 are connected with the control chip 3 to provide power supply for the control chip 3, and the third low-dropout linear voltage stabilizing unit 114 is used to be connected with the connector 9 to provide power supply for the data circuit based on the connector 9.

[0078] The step-up conversion unit is used to step up the input voltage to a required high voltage, the step-down conversion unit is used to step down the input voltage to a required low voltage, and the low-dropout linear voltage stabilizing unit is used to provide a stable power supply for the control chip 3.

[0079] Reference Figure 8 , Figure 8 A structural schematic diagram of a driving device of a display device is provided for another embodiment of the application. In the driving device of the embodiment, the driving device comprises:

[0080] The communication module 6 is connected with the control chip 3 and is used to communicate with external devices.

[0081] In Figure 8 The driving device of the embodiment shown comprises a communication module 6, which is used to realize the communication between the driving device and external devices, so as to control the working state of the entire driving device on the external devices. The communication module 6 comprises one or more of a wireless module, a Bluetooth module, a 2.4G communication module and a USB communication module; the external devices comprise one or more of a mobile phone, a computer and a tablet computer; wherein the communication module 6 and the external devices comprise but are not limited to the above structures and devices.

[0082] Reference Figure 9 , Figure 9 A structural schematic diagram of a display device is provided for another embodiment of the present application, and the display device comprises:

[0083] A substrate 8, the substrate 8 comprises a display area A1 and a non-display area A2 surrounding at least part of the display area A1;

[0084] A pixel structure arranged in the display area A1;

[0085] Any of the above driving devices, the driving device is arranged in the non-display area A2;

[0086] A scanning circuit 83 and a data circuit 82 arranged in the non-display area A2 are connected with the driving device respectively.

[0087] In Figure 9 The display device of the embodiment shown comprises a substrate 8, the substrate 8 has a display area A1 and a non-display area A2, the non-display area A2 has a printed circuit board 7, a flexible circuit board 81, a data circuit 82 and a scanning circuit 83, a driving device is located on the printed circuit board 7, the printed circuit board 7 and the flexible circuit board 81 are connected through a connector 9 welded on the printed circuit board 7 and the flexible circuit board 81, the driving device transmits scanning signals and data signals into the data circuit 82 and the scanning circuit 83 based on the flexible circuit board 81, the data circuit 82 comprises a first sub-data circuit 821 and a multiplexing circuit 822, the first sub-data circuit 821 transmits data signals to the multiplexing circuit 822, and after the multiplexing circuit 822 converts one data signal into multiple data signals, the multiple data signals are transmitted to the display area A1. The multiplexing circuit 822 is a multiplexer unit, which is used for multiplexing of data signals, thereby reducing the data signals outputted in the data circuit 82. A pixel structure is located above the display area A1, and displays based on the scanning signals and the data signals transmitted by the scanning circuit 83 and the data circuit 82.

[0088] Reference Figure 10 , Figure 10 A control method flowchart of a display device is provided for another embodiment of the present application, in the control method of the embodiment, the driving mode of the display device comprises a first driving mode and a second driving mode;

[0089] The control method comprises:

[0090] Step S1: determining the driving mode of the display device;

[0091] Step S2: providing driving signals for the display device based on the determined driving mode, to control the display state of the pixel structure in the display device;

[0092] When the display device is in the first driving mode, a high-voltage driving signal is output based on the first DC power voltage to control the display state of the pixel structure in the display device; when the display device is in the second driving mode, a low-voltage driving signal is output based on the second DC power voltage to control the display state of the pixel structure in the display device.

[0093] In Figure 10 The display device has a first driving mode and a second driving mode. In the first driving mode, the driving module in the driving device of the display device outputs a high-voltage driving signal to the scan circuit and the data circuit; in the second driving mode, the driving module in the driving device of the display device outputs a low-voltage driving signal to the scan circuit and the data circuit. The control chip in the driving device of the display device determines the driving mode of the display device, and outputs a control signal corresponding to the determined driving mode based on the determined driving mode. The driving module provides the driving signal to the scan circuit and the data circuit based on the control signal. The scan circuit and the data circuit output a scan signal and a data signal based on the driving signal to control the display state of the pixel structure in the display device. In the control method of the display device, the driving module provides the driving signal to the display device, which can effectively improve the scan signal voltage and the data signal voltage of the display device, thereby improving the driving voltage of the pixel structure in the display device, so that the display device can achieve a higher refresh rate and improve the display effect of the display device.

[0094] Based on the above, the application provides a driving device of a display device, the display device and a control method thereof. In the driving device of the display device, at least one first driving module 4 and at least one second driving module 5 are provided. The first driving module 4 is used to output a high-voltage driving signal or a low-voltage driving signal to control the scan circuit 83 to output a first scan signal or a second scan signal in response to the control signal output by the control chip 3. The second driving module 5 is used to output a high-voltage driving signal or a low-voltage driving signal to control the data circuit 82 to output a first data signal and a second data signal in response to the control signal output by the control chip 3, so as to control the display state of the pixel structure in the display device. In the display device, the first driving module 4 and the second driving module 5 provide the driving signal to the scan circuit 83 and the data circuit 82 in the display device, which can effectively improve the scan signal voltage and the data signal voltage of the display device, thereby improving the driving voltage of the pixel structure in the display device, so that the display device can achieve a higher refresh rate and improve the display effect of the display device.

[0095] The various embodiments described in this specification are presented by way of example, or by way of a progression of embodiments, and are not meant to limit the application in their scope. Each of the various embodiments described in this specification can be combined with one another, or with other embodiments described herein, to form further embodiments. The various embodiments described in this specification are described in detail in the following sections. The display apparatus and the control method thereof disclosed in the embodiments correspond to the driving apparatus of the display apparatus disclosed in the embodiments, and thus are described simply. The relevant parts are described in the method section.

[0096] It should be noted that in the description of the present application, it is to be understood that the drawings and embodiments described are illustrative of and not restrictive on the application. Like reference numerals in the drawings and consistent throughout the several embodiments of the present application denote like elements. Additionally, for purposes of understanding and ease of description, the drawings can exaggerate the thicknesses of some layers, films, panels, regions, etc. It is also to be understood that when an element such as a layer, film, region or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. In addition, "on" means positioned on or below another element, and not necessarily in direct contact with that element.

[0097] The terms "upper", "lower", "top", "bottom", "inner", "outer" and the like refer to the orientation or position of the apparatus or element as shown in the drawings, and are used merely for convenience and ease of description and not to indicate or imply that the apparatus or element must be in a particular orientation, constructed and operated in a particular orientation, and therefore should not be construed as limiting the application. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components can also be present.

[0098] It should also be noted that the terms "first", "second", and the like, as used herein, do not necessarily have an ordinal meaning. Rather, such terms are used merely as a label to distinguish between two or more elements or steps. Furthermore, the terms "comprise", "include", or "comprising", and "including" as used herein, specify the presence of features, integers, steps, or components, but do not preclude the presence or addition of one or more other features, integers, steps, components, or groups thereof. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present disclosure, and will not be interpreted in an overly literal or restricted way unless expressly so defined herein.

[0099] The foregoing description of the disclosed embodiments enables a person skilled in the art to make or use the application. Modifications of these embodiments will occur to persons of skill in the art, and that the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Therefore, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A driving apparatus of a display device, characterized by comprising: The display device comprises a pixel structure, and the driving device comprises: a power module, configured to output at least a first direct current voltage and a second direct current voltage; wherein the first direct current voltage is greater than the second direct current voltage; a driving module, configured to provide a driving signal for the display device in response to a control signal, so as to control the display state of the pixel structure in the display device; a control chip, configured to output the control signal, and control the driving module to output a high-voltage driving signal based on the first direct current voltage, or control the driving module to output a low-voltage driving signal based on the second direct current voltage; the display device comprises a scanning circuit and a data circuit; the driving device comprises two driving modules, which are a first driving module and a second driving module respectively; the high-voltage driving signal output by the first driving module is used to control the scanning circuit to output a first scanning signal, and the low-voltage driving signal output by the first driving module is used to control the scanning circuit to output a second scanning signal; wherein the opening stage voltage of the first scanning signal is greater than the opening stage voltage of the second scanning signal; the high-voltage driving signal output by the second driving module is used to control the data circuit to output a first data signal, and the low-voltage driving signal output by the second driving module is used to control the data circuit to output a second data signal; wherein the opening stage voltage of the first data signal is greater than the opening stage voltage of the second data signal.

2. The drive apparatus according to claim 1, characterized by the driving module comprises: a first sub-driving module, configured to provide a first driving signal for the display device based on the first direct current voltage in response to the control of a first control signal output by the control chip, so as to control the display state of the pixel structure in the display device; a second sub-driving module, configured to provide a second driving signal for the display device based on the second direct current voltage in response to the control of a second control signal output by the control chip, so as to control the display state of the pixel structure in the display device; wherein the voltage of the first driving signal is greater than the voltage of the second driving signal.

3. The drive apparatus according to claim 2, characterized by the first sub-driving module comprises: a first transistor, a source of the first transistor is configured to input the first direct current voltage, a gate of the first transistor is connected to the source of the first transistor through a first resistor, and a drain of the first transistor is connected to an output end of the driving module to output the first driving signal; a second transistor, a source of the second transistor is grounded, a gate of the second transistor is configured to input the first control signal, and a drain of the second transistor is connected to the gate of the first transistor through a second resistor.

4. The drive apparatus according to claim 2, characterized by the second sub-driving module comprises: a third transistor, a source of the third transistor is configured to input the second direct current voltage, a gate of the third transistor is connected to the source of the third transistor through a third resistor, and a drain of the third transistor is connected to the output end of the driving module to output the second driving signal; A fourth transistor, a source of the fourth transistor being grounded, a gate of the fourth transistor being used for inputting the second control signal, a drain of the fourth transistor being connected with the gate of the third transistor through a fourth resistor.

5. The drive apparatus according to claim 2, characterized by The control logic of the first control signal and the second control signal is opposite when the driving module works. The driving module further comprises an inverting circuit connected with the second sub-driving module, which is used for outputting the second control signal through an output end of the inverting circuit based on the first control signal accessed to an input end of the inverting circuit, and providing the second control signal for the second sub-driving module to control the conduction state of the second sub-driving module.

6. The drive apparatus according to claim 2, characterized by The control logic of the first control signal and the second control signal is opposite when the driving module works. The driving module further comprises an inverting circuit connected with the first sub-driving module, which is used for outputting the first control signal through an output end of the inverting circuit based on the second control signal accessed to an input end of the inverting circuit, and providing the first control signal for the first sub-driving module to control the conduction state of the first sub-driving module.

7. Drive arrangement according to claim 5 or 6, characterized in that The inverting circuit comprises: A fifth transistor, a gate of the fifth transistor being an input end of the inverting circuit, a source of the fifth transistor being grounded, a drain of the fifth transistor being accessed to a third direct current voltage through a fifth resistor, the third direct current voltage being greater than the second direct current voltage, and the third direct current voltage being less than the first direct current voltage; The drain of the fifth transistor being an output end of the inverting circuit.

8. The drive apparatus according to claim 1, characterized by The power supply module comprises: A first power supply circuit connected with the control chip, which is used for providing power supply for the control chip; A second power supply circuit connected with the first driving module and the second driving module respectively, which is used for providing the first direct current voltage for the first driving module and the second driving module; A third power supply circuit connected with the first driving module and the second driving module respectively, which is used for providing the second direct current voltage for the first driving module and the second driving module.

9. The drive apparatus according to claim 1, characterized by The driving device comprises: A communication module connected with the control chip, which is used for communicating with external equipment.

10. A display device, characterized by comprising: The display device comprises: A substrate comprising a display area and a non-display area surrounding at least part of the display area; A pixel structure arranged in the display area; The driving device of any one of claims 1-9 is arranged in the non-display area; A scanning circuit and a data circuit arranged in the non-display area and connected with the driving device respectively.

11. A control method of the display device according to claim 10, wherein The driving mode of the display device comprises a first driving mode and a second driving mode; The control method comprises: Determining the driving mode of the display device; Based on the determined driving mode, providing driving signals for the display device to control the display state of the pixel structure in the display device; When the display device is in the first driving mode, a high-voltage driving signal is output based on a first DC power voltage to control the display state of the pixel structure in the display device; and when the display device is in the second driving mode, a low-voltage driving signal is output based on a second DC power voltage to control the display state of the pixel structure in the display device.

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