CN109509444B - Control circuit of display panel, display device and control method - Google Patents
Control circuit of display panel, display device and control method Download PDFInfo
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- CN109509444B CN109509444B CN201811559085.1A CN201811559085A CN109509444B CN 109509444 B CN109509444 B CN 109509444B CN 201811559085 A CN201811559085 A CN 201811559085A CN 109509444 B CN109509444 B CN 109509444B
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000005591 charge neutralization Effects 0.000 claims description 10
- 238000002955 isolation Methods 0.000 claims description 6
- 230000002159 abnormal effect Effects 0.000 abstract description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 7
- 230000005669 field effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
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Abstract
The application discloses control circuit, display device and control method of display panel, this display panel's control circuit includes: the device comprises a first signal input end, a second signal input end, a first electrode, a second electrode, a switch control circuit and a switch circuit; the first input end of the switch control circuit is connected with the first signal input end, and the second input end of the switch control circuit is connected with the second signal input end; the output end of the switch control circuit is connected with the controlled end of the switch circuit, the first end of the switch circuit is connected with the first electrode, and the second end of the switch circuit is connected with the second electrode. According to the technical scheme, the charging efficiency of each electrode can be accelerated, and the problem that the display picture is abnormal due to insufficient charging of each electrode is solved.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a control circuit, a display device, and a control method for a display panel.
Background
TFT-LCD (Thin Film Transistor Liquid Crystal Display) has become an important Display platform in modern IT and video products.
However, due to the material characteristics of the liquid crystal, the same voltage is applied to the liquid crystal for a long time, which causes polarization of the liquid crystal, resulting in abnormal display. Therefore, it is necessary to set a reference voltage during the display of the TFT-LCD, and define a voltage value higher than the reference voltage as a positive polarity and a voltage value lower than the reference voltage as a negative polarity. During the display process, the voltage applied to the liquid crystal is switched from positive polarity to negative polarity every frame to avoid the polarization of the liquid crystal. In practical applications, the voltage on the electrodes is directly switched from positive polarity to negative polarity, which causes insufficient charging of the electrodes due to large voltage across the electrodes, resulting in abnormal display.
Disclosure of Invention
The embodiment of the application aims to solve the problem of abnormal display pictures caused by insufficient charging of electrodes in a display device by providing a control circuit, a display device and a control method of a display panel.
To achieve the above object, the present application provides a control circuit of a display panel, including:
a first signal input configured to transmit a first turn-on signal;
a second signal input configured to transmit a second enable signal;
a first electrode;
a second electrode;
a first input end of the switch control circuit is connected with the first signal input end, and a second input end of the switch control circuit is connected with the second signal input end; the switch control circuit is configured to output a corresponding first control signal when receiving the first opening signal; the switch control circuit is further configured to output a corresponding second control signal when receiving the second turn-on signal;
the controlled end of the switch circuit is connected with the output end of the switch control circuit, the first end of the switch circuit is connected with the first electrode, and the second end of the switch circuit is connected with the second electrode; the switch circuit is configured to be opened according to the first control signal so as to enable the first electrode and the second electrode to perform mutual charge neutralization; the switch circuit is further configured to close according to the second control signal to break the electrical connection between the first electrode and the second electrode.
Optionally, the switch control circuit includes a signal input unit and a signal trigger unit, a first input end of the signal input unit is a first input end of the switch control circuit, a second input end of the signal input unit is a second input end of the switch control circuit, an output end of the signal input unit is connected to a trigger end of the signal trigger unit, and an output end of the signal trigger unit is an output end of the switch control circuit.
Optionally, the signal input unit includes a first diode and a second diode, an anode of the first diode is a first input end of the signal input unit, an anode of the second diode is a second input end of the signal input unit, and a common end of the first diode and the second diode is an output end of the signal input unit.
Optionally, the signal triggering unit includes a flip-flop, a phase inverter and a first resistor, a clock signal input end of the flip-flop is a triggering end of the signal triggering unit, a data input end of the flip-flop is connected to an output end of the phase inverter and a first end of the first resistor, a data output end of the flip-flop is connected to an input end of the phase inverter, an output end of the phase inverter is an output end of the signal triggering unit, and a second end of the first resistor is grounded.
Optionally, the switch circuit includes an N-type insulating field effect transistor, a gate of the N-type insulating field effect transistor is a controlled end of the switch circuit, and a source and a drain of the N-type insulating field effect transistor are a first end and a second end of the switch circuit, respectively.
Optionally, the polarity of the first electrode is opposite to that of the second electrode.
To achieve the above object, the present application also provides a display device including the control circuit of the display panel as described in any one of the above.
Optionally, the display device further includes a display panel.
Optionally, the display panel includes a display area and a fan-out area, and the control circuit of the display panel is disposed on the fan-out area.
In order to achieve the above object, the present application further provides a control method of a display panel, where the control method of the display panel is applied to a control circuit of the display panel, the control circuit of the display panel includes a first signal input terminal, a second signal input terminal, a first electrode, a second electrode, a switch control circuit, and a switch circuit, and the control method of the display panel includes:
step S1, when receiving the first turn-on signal input by the first signal input terminal, the switch control circuit outputs a corresponding first control signal to the switch circuit;
a step S2 of turning on the switch circuit according to the first control signal to make the first electrode and the second electrode perform mutual charge neutralization;
step S3, when receiving the second turn-on signal input by the second signal input terminal, the switch control circuit outputs a corresponding second control signal to the switch circuit;
step S4, the switch circuit is turned off according to the second control signal to disconnect the electrical connection between the first electrode and the second electrode.
According to the technical scheme, the switch circuits are arranged between the electrodes which are adjacent in position and opposite in polarity, and before the electrodes are charged, the switch circuits are controlled to be turned on through the switch control circuit, so that the electrodes opposite in polarity can be turned on through the turning-on of the switch circuits, and mutual charge neutralization is carried out. The voltage starting point of the charging of each electrode is increased, the charging time of each electrode is reduced, and the problem that the display screen is abnormal due to insufficient charging of each electrode in the display device can be solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a block diagram of a control circuit of a display panel according to an embodiment of the present invention;
FIG. 2 is a block diagram of an embodiment of the switch control circuit of FIG. 1;
FIG. 3 is a schematic circuit diagram of a control circuit of a display panel according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a control method of a display panel according to an embodiment of the invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
20 | Switching circuit |
| 30 | A |
40 | |
| 101 | |
102 | Signal trigger unit |
| U1 | D flip-flop | U2 | Inverter with a capacitor having a capacitor element |
| D1 | First diode | D2 | Second diode |
| Q1 | N-type insulating field effect transistor | R1 | A first resistor |
| GateN-1 | A first signal input terminal | GateN | Second signal input terminal |
| C | Clock signal input terminal | D | Data input terminal |
| Q | Data output terminal | GND | Grounding terminal |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a control circuit of a display panel.
Referring to fig. 1, the control circuit of the display panel includes: a first signal input terminal GateN-1, a second signal input terminal GateN, a first electrode 30, a second electrode 40, a switch control circuit 10 and a switch circuit 20; a first input end of the switch control circuit 10 is connected to the first signal input end GateN-1, and a second input end of the switch control circuit 10 is connected to the second signal input end GateN; the output end of the switch control circuit 10 is connected to the controlled end of the switch circuit 20, the first end of the switch circuit 20 is connected to the first electrode 30, and the second end of the switch circuit 20 is connected to the second electrode 40.
In this embodiment, the switch control circuit 10 is configured to output a corresponding control signal to the switch circuit 20 according to a turn-on signal input by the first signal input terminal GateN-1 or the second signal input terminal GateN, so as to control the switch circuit 20 to be turned on or turned off.
In this embodiment, the switch circuit 20 has two states of being turned off and turned on, and can be implemented by various transistor circuits, such as an insulating fet, a triode, and other composite switch circuits composed of a plurality of transistors, but not limited thereto.
According to the technical scheme, before each electrode is normally charged, the electrodes which are adjacent in each position and opposite in polarity can be subjected to mutual charge neutralization, so that the charging efficiency of each electrode is improved. The control circuit of the display panel may be disposed on the fan-out region of the display panel. The embodiment takes the first electrode 30 and the second electrode 40 as an example. By providing the switching circuit 20 between the first electrode 30 and the second electrode 40 which are positioned adjacently and have opposite polarities. Before the first electrode 30 and the second electrode 40 are charged, the switch control circuit 10 receives a first turn-on signal input from the first signal input terminal GateN-1, and generates a high-level control signal according to the first turn-on signal, and the high-level control signal is applied to the switch circuit 20 to control the switch circuit 20 to be turned on. Since the first terminal and the second terminal of the switch circuit 20 are connected to the first electrode 30 and the second electrode 40, respectively, when the switch circuit 20 is turned on, the first electrode 30 and the second electrode 40 are in a conductive state, and the first electrode 30 and the second electrode 40 with opposite polarities neutralize the charges of each other.
When the switch control circuit 10 receives the second turn-on signal input by the second signal input terminal GateN, the switch control circuit 10 generates a low-level control signal and applies the low-level control signal to the switch circuit 20 to control the switch circuit 20 to turn off. Since the switching circuit 20 is turned off, the first electrode 30 and the second electrode 40 are also turned off from the on state. When the first electrode 30 and the second electrode 40 are in the off state, the first electrode 30 and the second electrode 40 start to be charged according to the received second turn-on signal. In this arrangement, the voltage of each electrode is increased to the reference voltage position before the first electrode 30 and the second electrode 40 are charged, and then the charging is started from the reference voltage to the target voltage, so that the charging efficiency of each electrode can be effectively improved. The first and second turn-on signals are also control signals of each electrode to control the corresponding electrode to perform a charging action.
According to the technical scheme, the switch circuits are arranged between the electrodes which are adjacent in position and opposite in polarity, before the electrodes are charged, the switch circuits are controlled to be turned on through the switch control circuit, so that the electrodes opposite in polarity can be turned on through the switch circuits, mutual charge neutralization is carried out, the charging time of the electrodes can be shortened, and the charging efficiency of the electrodes is effectively improved.
Referring to fig. 1 and fig. 2, in an embodiment, the switch control circuit 10 includes a signal input unit 101 and a signal triggering unit 102, a first input end of the signal input unit 101 is a first input end of the switch control circuit 10, a second input end of the signal input unit 101 is a second input end of the switch control circuit 10, an output end of the signal input unit 101 is connected to a triggering end of the signal triggering unit 102, and an output end of the signal triggering unit 102 is an output end 10 of the switch control circuit.
In this embodiment, in the initial state, the data input end D of the D flip-flop U1 in the signal flip-flop unit 102 is low, and when the signal input unit 101 receives the first turn-on signal, a high-level trigger signal is transmitted to the signal flip-flop unit 102, so that the D flip-flop U1 in the signal flip-flop unit 102 is triggered, and the D flip-flop U1 outputs the low-level electrical signal at the data input end thereof to the controlled end of the switch circuit through the inverter U2, so as to control the switch circuit 20 to turn on. When the switching circuit 20 is turned on, the first and second electrodes 30 and 40 having opposite polarities neutralize charges. When the signal input unit 101 receives the second turn-on signal, a high-level trigger signal is output to the signal trigger unit 102, so that the D flip-flop U1 in the trigger unit 102 is triggered, and since the data input end D of the D flip-flop U1 is at the level of the output end of the signal trigger unit 102 at this time, that is, high, the D flip-flop U1 outputs the high-level electrical signal to the controlled end of the switch circuit after passing through the inverter U2, so as to control the switch circuit 20 to turn off. When the switch circuit 20 is turned off, the first electrode 30 and the second electrode 40 are in an off state, and at this time, the first electrode 30 and the second electrode 40 start charging according to the received second on signal.
Referring to fig. 1 and 3, in an embodiment, the signal input unit 101 includes a first diode D1 and a second diode D2, the anode of the first diode D1 is a first input terminal of the signal input unit 101, the anode of the second diode D2 is a second input terminal of the signal input unit 101, and a common terminal of the first diode D1 and the second diode D2 is an output terminal of the signal input unit 101.
In practical applications, each of the turn-on signals may control the corresponding electrode to perform a charging action. In this embodiment, by providing the diode and using the unidirectional conduction characteristic of the diode, the first start signal input by the first signal input terminal GateN-1 can be prevented from affecting the electrodes corresponding to the second signal input terminal, or the second start signal input by the second signal input terminal GateN can be prevented from affecting the electrodes corresponding to the first signal input terminal GateN-1. The first diode D1 and the second diode D2 may be diodes with the same specification.
Referring to fig. 1 and 3, in an embodiment, the signal trigger unit 102 includes a flip-flop U1, an inverter U2, and a first resistor R1, the clock signal input terminal of the flip-flop U1 is the trigger terminal of the signal trigger unit 102, the data input terminal of the flip-flop U1 is connected to the output terminal of the inverter U2 and the first terminal of the first resistor R1, the data output terminal of the flip-flop U1 is connected to the input terminal of the inverter U2, the output terminal of the inverter U2 is the output terminal of the signal trigger unit 102, and the second terminal of the first resistor R1 is grounded.
In this embodiment, the flip-flop U1 may be selected as the D flip-flop U1, and the D flip-flop U1 has a characteristic that when the clock signal input terminal C receives a rising edge of a signal, the logic level of the data input terminal D is assigned to the data output terminal Q. In the initial state, the data input D of the D flip-flop U1 is low, and the first electrode 30 and the second electrode 40 are in an off state. When the D flip-flop U1 receives the rising edge of the first turn-on signal, the data output terminal Q of the D flip-flop U1 outputs a low-level electrical signal to the inverter U2, and the inverter U2 correspondingly outputs a high-level control signal and acts on the switch circuit 20 to control the switch circuit 20 to turn on; when the D flip-flop U1 receives the rising edge of the second on signal, since the level of the data input end D of the D flip-flop U1 is the output level of the inverter U2, the data input end D of the D flip-flop U1 is at a high level, the data output end Q outputs an electrical signal at a high level to the inverter U2, and the inverter U2 outputs a control signal at a low level to act on the switch circuit 20 to control the switch circuit 20 to turn off. In addition, by providing the first resistor R1 at the output terminal of the inverter U2, the high-level control signal output by the inverter U2 can be prevented from being pulled low due to direct grounding.
Referring to fig. 1 and 3, in an embodiment, the switch circuit 20 may employ an N-type isolation fet Q1, a gate of the N-type isolation fet Q1 is a controlled terminal of the switch circuit 20, and a source and a drain of the N-type isolation fet Q1 are a first terminal and a second terminal of the switch circuit 20, respectively.
The source of the N-type insulated field effect transistor Q1 may be connected to the first electrode 30, or the drain of the N-type insulated field effect transistor Q1 may be connected to the first electrode 30, which is not limited herein.
Specifically, the switching circuit 20 is turned on in response to a high-level control signal output from the inverter U2 before the first and second electrodes 30 and 40 are charged, so that the first and second electrodes 30 and 40 are in a conductive state, and the first and second electrodes 30 and 40 neutralize the mutual charges when the switching circuit 20 is turned on because the polarities of the first and second electrodes 30 and 40 are opposite to each other. When the switching circuit 20 receives the control signal of the low level output from the inverter U2, the switching circuit 20 is turned off to break the electrical connection between the first electrode 30 and the second electrode 40. The first electrode 30 and the second electrode 40 start to be charged according to the received second turn-on signal. According to the technical scheme, the electrodes with opposite polarities are subjected to mutual charge neutralization before the electrodes are charged, so that the voltage starting point of charging of each electrode is increased, namely, each electrode is increased to a reference voltage position before charging, and when each electrode is normally charged, the target voltage is charged from the reference voltage, so that the charging time of each electrode can be shortened, and the charging efficiency of each electrode is effectively improved.
The application also provides a display device, which comprises a display panel and the control circuit of the display panel, wherein the display panel comprises a display area and a fan-out area, and the control circuit of the display panel is arranged on the fan-out area. The detailed structure of the control circuit of the display panel can refer to the above embodiments, and is not described herein; it can be understood that, because the display device of the present application uses the control circuit of the display panel, the embodiment of the display device of the present application includes all technical solutions of all embodiments of the control circuit of the display panel, and the achieved technical effects are also completely the same, and are not described herein again.
In this embodiment, the display device may be a display device having a display panel, such as a television, a tablet computer, or a mobile phone. The display panel may be any one of: a liquid crystal display panel, an OLED display panel, a QLED display panel, a Twisted Nematic (TN) or Super Twisted Nematic (STN) type, an In-Plane Switching (IPS) type, a Vertical Alignment (VA) type, a curved panel, or other display panels.
The present application further provides a control method of a display panel, referring to fig. 4, the control method of the display panel is applied to a control circuit of the display panel, the control circuit of the display panel includes a first signal input terminal GateN-1, a second signal input terminal GateN, a first electrode 30, a second electrode 40, a switch control circuit 10, and a switch circuit 20; the control method of the display panel comprises the following steps:
step S1, when receiving the first turn-on signal inputted from the first signal input terminal GateN-1, the switch control circuit 10 outputs a corresponding first control signal to the switch circuit 20;
a step S2, in which the switch circuit 20 is turned on according to the first control signal, so that the first electrode 30 and the second electrode 40 perform mutual charge neutralization;
step S3, when receiving the second turn-on signal inputted from the second signal input terminal GateN, the switch control circuit 10 outputs a corresponding second control signal to the switch circuit 20;
in step S4, the switch circuit 20 is turned off according to the second control signal to disconnect the electrical connection between the first electrode 30 and the second electrode 40.
In the control method of the display panel of the embodiment, by providing the switch control circuit 20, when the switch control circuit 10 receives the first turn-on signal, the switch control circuit 20 outputs a high-level control signal to the switch circuit 20 to control the switch circuit 20 to turn on, so as to turn on the first electrode 30 and the second electrode 40 respectively connected to two ends of the switch circuit 20, so that the first electrode 30 and the second electrode 40 with opposite polarities perform mutual charge neutralization. When the switch control circuit 10 receives the second turn-on signal, it outputs a low-level control signal to the switch circuit 20 to control the switch circuit 20 to turn off, so that the first electrode 30 and the second electrode 40 connected to the switch circuit 20 are switched from the on state to the off state, and the first electrode 30 and the second electrode 40 are normally charged. By neutralizing the charges of the first electrode 30 and the second electrode 40 before charging the first electrode 30 and the second electrode 40, the charging time of each electrode can be reduced and the charging efficiency of each electrode can be improved, which is equivalent to increasing the charging starting point of each electrode.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A control circuit of a display panel, the control circuit comprising:
a first signal input configured to transmit a first turn-on signal;
a second signal input configured to transmit a second enable signal;
a first electrode;
a second electrode;
a first input end of the switch control circuit is connected with the first signal input end, and a second input end of the switch control circuit is connected with the second signal input end; the switch control circuit is configured to output a corresponding first control signal when receiving the first opening signal; the switch control circuit is further configured to output a corresponding second control signal when receiving the second turn-on signal;
the switch control circuit comprises a signal input unit and a signal trigger unit, wherein the signal input unit comprises a first diode and a second diode, the anode of the first diode is a first input end of the signal input unit, the anode of the second diode is a second input end of the signal input unit, the common end of the first diode and the second diode is an output end of the signal input unit, the first input end of the signal input unit is a first input end of the switch control circuit, the second input end of the signal input unit is a second input end of the switch control circuit, the output end of the signal input unit is connected with the trigger end of the signal trigger unit, and the output end of the signal trigger unit is an output end of the switch control circuit;
the signal trigger unit comprises a trigger, a phase inverter and a first resistor, wherein a clock signal input end of the trigger is a trigger end of the signal trigger unit, a data input end of the trigger is connected with an output end of the phase inverter and a first end of the first resistor, a data output end of the trigger is connected with an input end of the phase inverter, an output end of the phase inverter is an output end of the signal trigger unit, and a second end of the first resistor is grounded;
the controlled end of the switch circuit is connected with the output end of the switch control circuit, the first end of the switch circuit is connected with the first electrode, and the second end of the switch circuit is connected with the second electrode; the switch circuit is configured to be opened according to the first control signal so as to enable the first electrode and the second electrode to carry out mutual charge neutralization on the switch circuit, and is also configured to be closed according to the second control signal so as to disconnect the electric connection between the first electrode and the second electrode.
2. The control circuit of claim 1, wherein the switch circuit comprises an N-type isolation fet, a gate of the N-type isolation fet is a controlled terminal of the switch circuit, and a source and a drain of the N-type isolation fet are a first terminal and a second terminal of the switch circuit, respectively.
3. The control circuit of the display panel according to claim 1, wherein the first electrode and the second electrode have opposite polarities.
4. A display device characterized by comprising the control circuit of the display panel according to any one of claims 1 to 3.
5. The display device of claim 4, wherein the display device further comprises a display panel.
6. The display device of claim 5, wherein the display panel includes a display area and a fan-out area, the control circuit of the display panel being disposed on the fan-out area.
7. A control method of a display panel, wherein the control method of the display panel is applied to the control circuit of the display panel according to any one of claims 1 to 3, the control circuit of the display panel comprises a first signal input terminal, a second signal input terminal, a first electrode, a second electrode, a switch control circuit, and a switch circuit, and the control method of the display panel comprises:
step S1, when receiving the first turn-on signal input by the first signal input terminal, the switch control circuit outputs a corresponding first control signal to the switch circuit;
a step S2 of turning on the switch circuit according to the first control signal to make the first electrode and the second electrode perform mutual charge neutralization;
step S3, when receiving the second turn-on signal input by the second signal input terminal, the switch control circuit outputs a corresponding second control signal to the switch circuit;
step S4, the switch circuit is turned off according to the second control signal to disconnect the electrical connection between the first electrode and the second electrode.
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| CN201811559085.1A CN109509444B (en) | 2018-12-19 | 2018-12-19 | Control circuit of display panel, display device and control method |
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| CN201811559085.1A CN109509444B (en) | 2018-12-19 | 2018-12-19 | Control circuit of display panel, display device and control method |
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| CN109509444B true CN109509444B (en) | 2021-07-06 |
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| WO2010114014A1 (en) * | 2009-04-01 | 2010-10-07 | ローム株式会社 | Liquid crystal driving apparatus |
| CN104778933B (en) * | 2015-04-15 | 2017-04-19 | 昆山龙腾光电有限公司 | power management circuit |
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| CN109509444A (en) | 2019-03-22 |
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