WO2023005592A1 - 显示面板的驱动电路和显示装置 - Google Patents
显示面板的驱动电路和显示装置 Download PDFInfo
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- WO2023005592A1 WO2023005592A1 PCT/CN2022/103022 CN2022103022W WO2023005592A1 WO 2023005592 A1 WO2023005592 A1 WO 2023005592A1 CN 2022103022 W CN2022103022 W CN 2022103022W WO 2023005592 A1 WO2023005592 A1 WO 2023005592A1
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- 238000000034 method Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 15
- 230000008901 benefit Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 239000004973 liquid crystal related substance Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 230000011664 signaling Effects 0.000 description 5
- 239000010409 thin film Substances 0.000 description 4
- 230000005669 field effect Effects 0.000 description 3
- 239000002096 quantum dot Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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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
- G09G3/2092—Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto
-
- 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
-
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0264—Details of driving circuits
- G09G2310/0267—Details of drivers for scan electrodes, other than drivers for liquid crystal, plasma or OLED displays
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0264—Details of driving circuits
- G09G2310/0275—Details of drivers for data electrodes, other than drivers for liquid crystal, plasma or OLED displays, not related to handling digital grey scale data or to communication of data to the pixels by means of a current
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/08—Details of timing specific for flat panels, other than clock recovery
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0247—Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2340/00—Aspects of display data processing
- G09G2340/04—Changes in size, position or resolution of an image
- G09G2340/0407—Resolution change, inclusive of the use of different resolutions for different screen areas
- G09G2340/0435—Change or adaptation of the frame rate of the video stream
-
- 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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3266—Details of drivers for scan electrodes
-
- 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
- G09G3/3674—Details of drivers for scan electrodes
- G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
Definitions
- the present application relates to the field of display technology, in particular to a driving circuit of a display panel and a display device.
- the refresh rate (Frames Per Second, FPS) is an important index to measure the display effect of the display panel.
- the refresh rate determines the number of frames transmitted per second. The higher the refresh rate, the shorter the time interval of each frame, which can improve The clarity and fluency of the display screen can effectively improve the display effect.
- One of the objectives of the embodiments of the present application is to provide a display panel driving circuit and a display device, aiming at solving the problem of high power consumption of the existing high refresh rate display panel.
- a driving circuit of a display panel including a generation module, an output module and a switch control module;
- the output module is electrically connected to the generation module and the switch control module respectively;
- the generating module is configured to receive a first clock signal, a second clock signal, a first control signal, and a second control signal, and generate the first clock signal and the second control signal according to the first control signal and the second control signal.
- the second clock signal is processed to obtain a generated signal, and the generated signal is output to the output module; the first clock signal and the second clock signal have a preset phase difference;
- the switch control module is configured to output a switch control signal to the output module according to the received first level signal, second level signal and third control signal;
- the output module When the third control signal is at low level, the output module is configured to output the generated signal to the gate driver according to the switch control signal; when the third control signal is at high level, the output module It is also used for outputting the first clock signal or the second clock signal to the gate driver according to the switch control signal.
- a display device including a display panel, a control unit, a source driver, and a gate driver;
- the display panel is connected to the source driver and the gate driver respectively, and the control unit is connected to the source driver and the gate driver respectively;
- the control unit includes the drive circuit described in the first aspect above;
- the drive circuit of the control unit is connected to the gate driver.
- the first aspect of the embodiment of the present application provides a driving circuit for a display panel, including a generating module, an output module, and a switch control module; the output module is electrically connected to the generating module and the switch control module; the output module is used to output Generate a signal to the gate driver; the output module is also used to output the first clock signal and the second clock signal to the gate driver according to the switch control signal, which can change the refresh rate of the display panel in real time and reduce the power consumption of the high refresh rate display panel.
- the output signal of the output module can be continuous without interruption, so as to improve the display effect of the display panel and prolong the life of the display panel.
- FIG. 1 is a first structural schematic diagram of a driving circuit of a display panel provided by an embodiment of the present application
- Fig. 2 is a schematic diagram of the timing of the first clock signal, the second clock signal and the generated signal provided by the embodiment of the present application;
- Fig. 3 is a timing schematic diagram of the first clock signal, the second clock signal, the third control signal, the generated signal, and the output signal including the first clock signal and the generated signal provided by the embodiment of the present application;
- FIG. 4 is a second structural schematic diagram of a driving circuit of a display panel provided by an embodiment of the present application.
- Figure 5 shows the first clock signal, the second clock signal, the first control signal, the second control signal, the third control signal, the first generated signal, the second generated signal, the first output signal and the second generated signal provided by the embodiment of the present application.
- FIG. 6 is a schematic diagram of a third structure of a driving circuit of a display panel provided by an embodiment of the present application.
- FIG. 7 is a schematic diagram of a fourth structure of a driving circuit of a display panel provided by an embodiment of the present application.
- FIG. 8 is a schematic diagram of a fifth structure of a driving circuit of a display panel provided by an embodiment of the present application.
- FIG. 9 is a schematic diagram of a sixth structure of a driving circuit of a display panel provided by an embodiment of the present application.
- FIG. 10 is a schematic diagram of a seventh structure of a driving circuit of a display panel provided by an embodiment of the present application.
- FIG. 11 is a schematic structural diagram of a display device provided by an embodiment of the present application.
- An embodiment of the present application provides a driving circuit for a display panel, which can be applied to a display panel.
- the refresh rate of the display panel can be changed in real time, so that the display panel can operate at a high refresh rate or a low refresh rate while ensuring the display effect. Switch between to reduce the power consumption of the high refresh rate display panel and prolong the life of the display panel.
- the display panel can be based on TFT-LCD (Thin Film Transistor Liquid Crystal Display, thin film transistor liquid crystal display) technology liquid crystal display panel, liquid crystal display panel based on LCD (Liquid Crystal Display, liquid crystal display) technology, OLED (Organic Light-Emitting Organic electro-laser display panels based on Diode (Organic Light Emitting Diode) technology, based on QLED (Quantum Dot Light Emitting Diodes, quantum dot light-emitting diode) technology quantum dot light-emitting diode display panel or curved display panel, etc.
- TFT-LCD Thi Film Transistor Liquid Crystal Display, thin film transistor liquid crystal display
- LCD Liquid Crystal Display, liquid crystal display
- OLED Organic Light-Emitting Organic electro-laser display panels based on Diode (Organic Light Emitting Diode) technology
- QLED Quantum Dot Light Emitting Diodes, quantum dot light-emitting diode
- the display panel drive circuit 1 provided in the first embodiment of the present application includes a generation module 10 , a switch control module 20 and an output module 30 ;
- the output module 30 is electrically connected to the generation module 10 and the switch control module 20 respectively;
- the generating module 10 is configured to receive the first clock signal, the second clock signal, the first control signal and the second control signal, and process the first clock signal and the second clock signal according to the first control signal and the second control signal to obtain Generate a signal, and output the generated signal to the output module 30; the first clock signal and the second clock signal have a preset phase difference;
- the switch control module 20 is used to output the switch control signal to the output module 30 according to the received first level signal, second level signal and third control signal;
- the output module 30 When the third control signal is at a low level, the output module 30 is used to output the generated signal to the gate driver 2 according to the switch control signal; when the third control signal is at a high level, the output module 30 is also used to output the first A clock signal or a second clock signal is sent to the gate driver 2 .
- the driving circuit may include electronic components such as multiple transistors, comparators, logic gates, resistors, capacitors or inductors; the first clock signal, the second clock signal, the first level signal, the second level signal, The first control signal, the second control signal and the third control signal may be input to the driving circuit by a timing controller (Timer Control Register, TCON) or an on-chip chip (System on Chip, SOC); the second clock signal may be through The TCON or the SOC shifts the phase of the first clock signal, and the preset phase difference between the phase shifted second clock signal and the first clock signal may range from 0° to 180°.
- TCON Timer Control Register
- SOC System on Chip
- the cycle of the first clock signal and the cycle of the second clock signal can have the same preset cycle, and the cycle of the first clock signal and the second clock signal
- the preset phase difference can be specifically 90 degrees, then when the first clock signal is at a high level, the second clock signal is at a low level, similarly, when the second clock signal is at a high level, the first clock signal is at a low level flat;
- the input of the generation module is the first clock signal and the second clock signal.
- the generated signal can include the first clock signal in the first time period, and include the second clock signal in the second time period.
- the timing end point of can be located at a quarter of any period of the first clock signal, then the timing end point of the first time period and the timing start point of the second time period are located at a quarter of any period of the first clock signal or, the timing start point of the first time period and the timing end point of the second time period can be located at three-quarters of any cycle of the first clock signal, then the timing end point of the first time period and the second time period
- the timing starting point of the time period is located at a quarter of any cycle of the first clock signal; wherein, the level of the first half
- FIG. 2 exemplarily shows that when the output of the generation module in the first time period t01 is the first clock signal, and when the output in the second time period t12 is the second clock signal, the first clock signal, the second clock signal and The timing diagram of the generated signal, where the timing start point of the first time period t01 is time t0, the timing end point of the first time period t01 and the timing start point of the second time period are time t1, and the timing end point of the second time period t12 is t2 time, since the timing end point of the second time period in any cycle is also the timing starting point of the first time period in the next cycle, so the time t2 in any cycle is also the time t0 in the next cycle;
- the corresponding relationship between the timing and the generated signal is explained:
- the generation module starts to output the first clock signal, that is, the generated signal includes a high-level first clock signal; after a quarter of the first cycle, the generated signal changes from high to The first clock signal of the level is converted into the first clock signal of the low level; after a quarter of the preset cycle, it reaches the timing end point of the first time period t01 and the timing starting point t1 of the second time period t12 , the generation module starts to output the second clock signal and stops outputting the first clock signal, that is, the generated signal includes a high-level second clock signal, so that the generated signal is converted from a low-level first clock signal to a high-level second clock signal Clock signal; after a quarter of a preset period, the generated signal is converted from a high-level second clock signal to a low-level second clock signal; after a quarter of a preset period, it reaches At the timing end point t2 of the second time period t12, a cycle
- a gate driver can be connected between the output module and the display panel, and the output signal of the output module can be output to the driving gate driver to control the gate driver to output the row driving signal, and to control the pixel gate of the display panel step by step Line scanning, thereby controlling the pixel charging cycle of the display panel, and then controlling the refresh rate of the display panel. Therefore, by changing the period of the output signal of the output module, the refresh rate of the display panel can be changed; the output module can have two types of output signals, the first type of output signal can be the first clock signal or the second clock signal, and the second type The output signal type may be a generated signal.
- the output signal of the output module is the first clock signal or the second clock signal
- the period of the first clock signal and the second clock signal is a preset period
- the display panel is controlled to work at the first refresh rate
- the period of the generated signal is half of the preset period
- the display panel is controlled to work at the second refresh rate.
- the switch control module can be used to switch the output signal type of the output module, so as to control the change of the refresh rate of the display panel.
- the switch control module when the third control signal is at the first preset level, the switch control module outputs the switch control Signal to the output module, the output signal type can be switched to the generated signal; when the third control signal is at the second preset level, the switch control signal is output to the output module through the switch control module, and the output signal type can be switched to the first clock signal or the second clock signal, to realize the seamless switching of the output module between outputting the first clock signal or the second clock signal and outputting the generated signal, so that the output signal can include the first clock signal and the generated signal, or include the second Clock signals and generated signals.
- the first preset level can be low level or high level, when the first preset level is low level, the second preset level is high level; When the level is a high level, the second preset level is a low level.
- the output signal of the output module can be continuous and uninterrupted, so that when the refresh rate of the traditional display panel is changed, the phenomenon of black screen and flickering caused by the interval between outputting two gate drive signals with different periods can be avoided.
- black screen and flickering screen it is necessary to re-drive the pixels of the display panel, which will affect the life of the display panel every time the refresh rate is switched. Therefore, while reducing the power consumption of the high refresh rate display panel, the display effect can be improved and the Extend the life of the display panel.
- Fig. 3 exemplarily shows that when the first preset level is low level, the first clock signal, the second clock signal, the third control signal, the generated signal and the output signal including the first clock signal and the generated signal timing diagram.
- the display state of the display panel is obtained through the switch control module, and the level of the third control signal is adjusted according to the display state of the display panel.
- the switch control module when the display screen refresh rate of the display panel is lower than the preset threshold, can control the third control signal to switch to a high level; when the display screen refresh rate of the display panel is higher than the preset threshold, the switch control module The module can control the third control signal to switch to a low level, wherein the above-mentioned preset threshold can be the second refresh rate, specifically 60 Hz, 120 Hz, 144 Hz or 240 Hz, etc., so that the adaptive refresh rate can be realized
- the adjustment improves the flexibility and controllability of changing the refresh rate of the display panel, and can minimize the power consumption of the high refresh rate display panel.
- the generation module 10 includes a first generation unit 110 and a second generation unit 120 ;
- the first generating unit 110 and the second generating unit 120 are respectively electrically connected to the output module 30;
- the first generation unit 110 is used to process the first clock signal within the first time period to obtain the first generated signal, and output the first generated signal to the output module 30; the first generation unit 110 is also used to process the first clock signal during the second time period Internally process the second clock signal to obtain the first generated signal, and output the first generated signal to the output module 30;
- the second generating unit 120 is used to process the second clock signal within the first time period to obtain a second generated signal, and output the second generated signal to the output module 30; the second generating unit 120 is also used to process the second clock signal during the second time period Internally process the first clock signal to obtain a second generated signal, and output the second generated signal to the output module 30;
- the first control signal is at high level and the second control signal is at low level during the first time period, and the first control signal is at low level and the second control signal is at high level during the second time period.
- the generating module may include a plurality of generating units, and the generated signals output by any two generating units have a phase difference.
- the generating module may include a first generating unit and a second generating unit, and the input of the first generating unit
- the output of the first generation unit can be controlled by the first control signal and the second control signal, so that the first generation unit can output the first generation signal
- the above-mentioned first generated signal is the first clock signal in the first time period, and is the second clock signal in the second time period
- the input of the second generation unit is also the first clock signal and the second clock signal, the first control signal and the second control signal, through the first control signal and the second control signal to control the output of the second generation unit
- the second generation unit can generate the second generation signal
- the second generation signal is the second generation signal in the first time period clock signal, and the first clock signal during the second time period.
- the first control signal can be obtained by phase-shifting the first clock signal or the second clock signal through TCON or SOC.
- the second control signal can also be obtained by shifting the phase of the first clock signal or the second clock signal through TCON or SOC. Obtained by phase shifting; the phase difference between the first control signal and the first clock signal can be 45 degrees or 135 degrees, and the phase difference between the second control signal and the first control signal can be 90 degrees.
- the first control signal is at a high level
- the second control signal is at low level.
- Fig. 5 exemplarily shows the timing diagram of the first clock signal, the second clock signal, the first control signal, the second control signal, the third control signal, the first generated signal and the second generated signal, the following is combined with Fig. 5
- Fig. 5 explain in detail the functions of the first control signal and the second control signal:
- the first control signal is switched to a high level and the second control signal is switched to a low level to control the first generating unit to output the first A clock signal, and control the second generation unit to output the second clock signal; at the timing end point of the first time period t01 and the timing start point t1 of the second time period t12, the first control signal switches to low level and the second control signal
- the signal is switched to a high level, controlling the first generating unit to output the second clock signal, and controlling the second generating unit to output the first clock signal; in this way, the cycle is continued, so that the first generating signal includes the first clock signal and the second clock signal, And the second generated signal includes the first clock signal and the second clock signal, the periods of the first generated signal and the second generated signal are equal to half of the preset period, and the phase difference is 90 degrees.
- the first generating unit and the second generating unit can be controlled simply and effectively through the cooperation of the first control signal and the second control signal, thereby improving the stability and reliability of the first generating signal and the second generating signal.
- the first generation unit 110 includes a first electronic switch 111 and a second electronic switch 112 ;
- the drain of the first electronic switch 111 is electrically connected to the drain of the second electronic switch 112, the source of the first electronic switch 111 is used to receive the first clock signal, and the gate of the first electronic switch 111 is used to receive the first control signal. signal, the drain of the first electronic switch 111 is used to output the first clock signal to the output module 30 within the first time period;
- the source of the second electronic switch 112 is used to receive the second clock signal, the gate of the second electronic switch 112 is used to receive the second control signal, and the drain of the second electronic switch 112 is used to output The second clock signal is sent to the output module 30;
- the first generated signal includes a first clock signal and a second clock signal.
- the first electronic switch and the second electronic switch can be any device or circuit with electronic switch function, for example, triode or metal oxide semiconductor field effect transistor (Metal Oxide Semiconductor Field Effect Transistor, MOSFET), specifically, may be a thin film field effect transistor (Thin Film Transistor, TFT).
- MOSFET Metal Oxide Semiconductor Field Effect Transistor
- TFT Thin Film Transistor
- the first control signal is switched to high level and the second control signal is switched to low level, the gate of the first electronic switch is at high level, and the first electronic switch turn on, the drain of the first electronic switch starts to output the first clock signal; the gate of the second electronic switch is at low level, the second electronic switch is turned off, and the second electronic switch stops outputting the second clock signal, thereby realizing the first
- the generating unit outputs a first clock signal in a first time period.
- the first control signal is switched to low level and the second control signal is switched to high level, the gate of the first electronic switch Very low level, the first electronic switch is turned off, the first electronic switch stops outputting the first clock signal; the gate of the second electronic switch is high level, the second electronic switch is turned on, and the drain of the second electronic switch starts to output The second clock signal, so that the first generation unit can output the second clock signal in the second time period, and then the first generation unit can output the first generation signal.
- the first generation unit composed of the first electronic switch and the second electronic switch has the advantages of simple structure, easy control, stable output and low cost, which can improve the stability of the driving circuit and reduce the production cost of the display panel.
- the second generating unit 120 includes a third electronic switch 121 and a fourth electronic switch 122;
- the drain of the third electronic switch 121 is electrically connected to the drain of the fourth electronic switch 122, the source of the third electronic switch 121 is used to receive the second clock signal, and the gate of the third electronic switch 121 is used to receive the first control signal. signal, the drain of the third electronic switch 121 is used to output a second clock signal to the output module within the first time period;
- the source of the fourth electronic switch 122 is used to receive the first clock signal
- the gate of the fourth electronic switch 122 is used to receive the second control signal
- the drain of the fourth electronic switch 122 is used to , outputting the first clock signal to the output module.
- the second generated signal includes a first clock signal and a second clock signal.
- the selection of the third electronic switch and the fourth electronic switch is consistent with the selection of the above-mentioned first electronic switch and the second electronic switch, and will not be repeated here.
- the first control signal is switched to high level and the second control signal is switched to low level, the gate of the third electronic switch is at high level, and the third electronic switch is turned on, the drain of the third electronic switch starts to output the second clock signal; the gate of the fourth electronic switch is at low level, the fourth electronic switch is turned off, and the fourth electronic switch stops outputting the first clock signal, thereby realizing the second
- the generating unit outputs the second clock signal during the first time period.
- the first control signal is switched to low level and the second control signal is switched to high level, the gate of the third electronic switch Very low level, the third electronic switch is turned off, the third electronic switch stops outputting the second clock signal; the gate of the fourth electronic switch is high level, the fourth electronic switch is turned on, and the drain of the fourth electronic switch starts to output The first clock signal, so that the second generation unit can output the first clock signal in the second time period, and then the second generation unit can output the second generation signal.
- the second generation unit composed of the third electronic switch and the fourth electronic switch has the advantages of simple structure, easy control, stable output and low cost, which can improve the stability of the driving circuit and reduce the production cost of the display panel.
- the output module 30 includes a first output unit 310 and a second output unit 320 ;
- the first output unit 310 is electrically connected to the first generation unit 110 and the switch control module 20 respectively, and the second output unit 320 is electrically connected to the second generation unit 120 and the switch control module 20 respectively;
- the first output unit 310 is used to receive the first generated signal when the third control signal is at a low level, and output the first generated signal to the source driver 2; it is also used to receive the first generated signal when the third control signal is at a high level. a clock signal, and output the first clock signal to the source driver 2;
- the second output unit 320 is used to receive the second generated signal when the third control signal is at low level, and output the second generated signal to the source driver 2; it is also used to receive the second generated signal when the third control signal is at high level. second clock signal, and output the second clock signal to the source driver 2 .
- the output module can include multiple output units, and the number of output units can be determined according to the number of generation units. Specifically, the number of output units can be consistent with the number of generation units, and multiple output units and multiple generation units One-to-one correspondence, each output unit is used to receive the generated signal output by the corresponding generating unit, and receive the first clock signal or the second clock signal, the output signal of each output unit may include the first clock signal and the corresponding generating unit The output generation signal may alternatively include the second clock signal and the generation signal output by the corresponding generation unit.
- the output module may include a first output unit and a second output unit, and the input of the first output unit is the first generation signal, the first clock signal and the switch
- the control signal controls the output of the first output unit through the switch control signal, so that the first output unit can output the first output signal.
- the first output signal includes two types of output signals, the first clock signal and the first generated signal, and according to The third control signal switches the output signal type of the first output signal.
- the first output unit when the third control signal is at a low level, receives the first generated signal and stops receiving the first clock signal, so the first output signal includes The first generated signal outputs the above-mentioned first output signal to the gate driver; when the third control signal is at a high level, the first output unit receives the first clock signal and stops receiving the first generated signal, so the first output signal includes the first output signal A clock signal, outputting the above-mentioned first output signal to the gate driver.
- the input of the second output unit is the second generation signal, the second clock signal and the switch control signal, and the output of the second output unit can be controlled by the switch control signal, so that the second output unit can output the second output signal, the above
- the second output signal includes two types of output signals, the second generated signal and the second clock signal, and the output signal type of the second output signal is switched according to the third control signal.
- the second The second output unit receives the second generated signal and stops receiving the second clock signal, so the second output signal includes the second generated signal, and outputs the above-mentioned second output signal to the display panel or the gate driver; when the third control signal is at a high level , the second output unit receives the second clock signal and stops receiving the second generated signal, so the second output signal includes the second clock signal, and outputs the above-mentioned second output signal to the display panel or the gate driver.
- the first output signal may also include the second clock signal and the first generated signal.
- the second output signal may also include the first clock signal and the second generated signal.
- the output signal types included in the output signal may be Free collocation according to actual needs.
- Fig. 5 exemplarily shows the first clock signal, the second clock signal, the first control signal, the second control signal, the third control signal, the first generated signal, the second generated signal, the first output signal and the second Timing diagram of the output signal.
- the phase difference between the first generated signal included in the first output signal and the second generated signal included in the second output signal is 90 degrees, and when the third control signal is at high level Usually, the phase difference between the first clock signal included in the first output signal and the second generated signal included in the second output signal is also 90 degrees.
- the output module The multiple output units included can provide two or more output signals with different phases for the source driver.
- a single output signal can reduce the number of gate drive circuits that need to be input to reduce
- the load of each output signal can also reduce the number of clock generators of the display panel, thereby improving the display stability of the display panel and reducing the production cost of the display panel.
- the first output unit 310 includes a fifth electronic switch 311 and a sixth electronic switch 312;
- the drain of the fifth electronic switch 311 is electrically connected to the drain of the sixth electronic switch 312, the source of the fifth electronic switch 311 is used to receive the first clock signal, and the gate of the fifth electronic switch 311 is used to receive the switch control signal , the drain of the fifth electronic switch 311 is used to output the first clock signal to the gate driver 2 when the third control signal is at a high level;
- the source of the sixth electronic switch 312 is used to receive the first generated signal
- the gate of the sixth electronic switch 312 is used to receive the switch control signal
- the drain of the sixth electronic switch 312 is used to receive the first generated signal when the third control signal is low. , outputting the first generated signal to the gate driver 2 .
- the selection of the fifth electronic switch and the sixth electronic switch is consistent with the selection of the above-mentioned first electronic switch and the second electronic switch, and will not be repeated here.
- the switch control signal is input to the sixth electronic switch and stops inputting to the fifth electronic switch, and the switch control signal is at high level, then the gate of the sixth electronic switch is at high level. level, the sixth electronic switch is turned on and the fifth electronic switch is turned off, and the drain of the sixth electronic switch outputs the first generated signal, so that the first output unit outputs the first generated signal.
- the switch control signal when the third control signal is at a high level, the switch control signal is input to the fifth electronic switch and stops being input to the sixth electronic switch. If the switch control signal is at a high level, the gate of the fifth electronic switch is at a high level. level, the fifth electronic switch is turned on and the sixth electronic switch is turned off, the drain of the fifth electronic switch outputs the first clock signal, so that the first output unit outputs the first clock signal, and the first output unit outputs the first output signal.
- the first output unit composed of the fifth electronic switch and the sixth electronic switch has the advantages of simple structure, easy control, stable output and low cost.
- the driving circuit can be greatly improved. stability and reduce the production cost of the display panel.
- the second output unit 320 includes a seventh electronic switch 321 and an eighth electronic switch 322;
- the drain of the seventh electronic switch 321 is electrically connected to the drain of the eighth electronic switch 322, the source of the seventh electronic switch 321 is used to receive the second clock signal, and the gate of the seventh electronic switch 321 is used to receive the switch control signal , the drain of the seventh electronic switch 321 is used to output the second clock signal to the gate driver 2 when the third control signal is at a high level;
- the source of the eighth electronic switch 322 is used to receive the second generated signal
- the gate of the eighth electronic switch 322 is used to receive the switch control signal
- the drain of the eighth electronic switch 322 is used to , and output the second generated signal to the gate driver 2 .
- the selection of the seventh electronic switch and the eighth electronic switch is consistent with the selection of the above-mentioned first electronic switch and the second electronic switch, and will not be repeated here.
- the switch control signal is input to the eighth electronic switch and stops inputting to the seventh electronic switch, and the switch control signal is at high level, then the gate of the eighth electronic switch is at high level. level, the eighth electronic switch is turned on and the seventh electronic switch is turned off, and the drain of the eighth electronic switch outputs the second generated signal, so that the second output unit outputs the second generated signal.
- the switch control signal is input to the seventh electronic switch and stops inputting to the eighth electronic switch, and the switch control signal is at high level, then the gate of the seventh electronic switch is at high level. level, the seventh electronic switch is turned on and the eighth electronic switch is turned off, the drain of the seventh electronic switch outputs the second clock signal, so that the second output unit can output the second clock signal, and then the second output unit can output the second output signal.
- the second output unit composed of the seventh electronic switch and the eighth electronic switch has the advantages of simple structure, easy control, stable output and low cost.
- the driving circuit can be greatly improved. stability and reduce the production cost of the display panel.
- the switch control module 20 includes a first switch unit 210 and a second switch unit 220 ;
- the first switch unit 210 is electrically connected to the second switch unit 220, the first output unit 310 and the second output unit 320 respectively, and the second switch unit 220 is electrically connected to the first output unit 310 and the second output unit 320 respectively;
- the first switch unit 210 is used to receive the first level signal, and output the first switch control signal to the first output unit 310 and the second output unit 320 when the third control signal is low level, and the first switch control signal is high level;
- the second switch unit 220 is used to receive the second level signal and the third control signal, and output the second switch control signal to the first output unit 310 and the second output unit 320 when the third control signal is at a high level.
- the switch control signal is high level.
- the first level signal may be a high level signal
- the second level may be a low level signal
- the third control signal may be a pulse signal with adjustable high and low levels.
- the switch control module may include two switch units, specifically a first switch unit and a second switch unit, the first switch unit is used to output the first switch control signal to all output units, so as to control all output units to output the corresponding generation unit Output generation signal; the second switch unit is used to output a second switch control signal to the output unit, so as to control all output units to output the first clock signal or the second clock signal.
- the input of the first switch unit is the first level signal
- the third control signal is at low level
- the first switch control signal is output to the first output unit and the second output unit
- the second switch unit stops Outputting the second switch control signal
- the first switch control signal is a high-level first level signal, thereby controlling the first output unit to output the first generated signal, and controlling the second output unit to output the second generated signal, thereby controlling the display
- the panel operates at the second refresh rate.
- the input of the second switch unit is the second level signal and the third control signal
- the third control signal is high level
- the second switch control signal is output to the first output unit and the second output unit
- the first switch unit stops outputting the first switch control signal
- the second switch control signal is a third control signal of high level, thereby controlling the first output unit to output the first clock signal, and controlling the second output unit to output the second clock signal , and then control the display panel to work at the first refresh rate.
- the output signal type of the output module can be switched by switching the level of the third control signal.
- the advantage of this setting is that the refresh rate of the display panel can be changed through an independent signal, thereby improving the request for changing the refresh rate. Response speed provides users with better visual effects and experience.
- the first switch unit includes a ninth electronic switch 211
- the second switch unit includes a tenth electronic switch 221 ;
- the source and gate of the ninth electronic switch 211 are used to receive the first level signal, and the drain of the ninth electronic switch 211 is used to output the first switch control signal to the first output when the third control signal is at low level.
- the source of the tenth electronic switch 221 is used to receive the second level signal
- the gate of the tenth electronic switch 221 is used to receive the third control signal
- the drain of the tenth electronic switch 221 is used to receive the third control signal when the third control signal is high. level
- the second switch control signal is output to the fifth electronic switch of the first output unit 310 and the seventh electronic switch of the second output unit 320 .
- the selection of the ninth electronic switch and the tenth electronic switch is consistent with the selection of the above-mentioned first electronic switch and the second electronic switch, and will not be repeated here.
- the gate of the tenth electronic switch is at low level, and the tenth electronic switch is turned off; the source and gate of the ninth electronic switch receive the first level signal, and the tenth electronic switch
- the drain of the ninth electronic switch outputs the first switch control signal to the sixth electronic switch of the first output unit, and the eighth electronic switch of the second output unit, so that the sixth electronic switch and the above-mentioned
- the eighth electronic switch is turned on, thereby controlling the first output unit to output the first generated signal, and controlling the second output unit to output the second generated signal.
- the gate of the tenth electronic switch is at high level, and the tenth electronic switch is turned on; the source and gate of the ninth electronic switch receive the first level signal, and the tenth electronic switch
- the ninth electronic switch is turned on, the drain of the ninth electronic switch is at a high level, the source of the tenth electronic switch is at a low level, and the voltages at the drains of the ninth electronic switch and the tenth electronic switch will be neutralized.
- the third control signal can be output to the fifth electronic switch of the first output unit, and the second output
- the seventh electronic switch of the unit turns on the fifth electronic switch and the seventh electronic switch, thereby controlling the first output unit to output the first clock signal, and controlling the second output unit to output the second clock signal.
- the ninth electronic switch and the tenth electronic switch can respond synchronously according to the level of the third control signal, can change the refresh rate of the display panel in real time, and greatly improve the response speed to the request for changing the refresh rate.
- the driving circuit of the display panel includes a generation module, an output module and a switch control module; the output module is electrically connected to the generation module and the switch control module respectively; the generation module is used to receive the first clock signal, The second clock signal, the first control signal and the second control signal output the generated signal to the output module; wherein the generated signal includes the first clock signal and the second clock signal; the switch control module is used to receive the first level signal according to , the second level signal and the third control signal output the switch control signal to the output module; when the third control signal is low level, the output module is used to generate a signal to the display panel according to the switch control signal output; when the third control signal is When the level is high, the output module is also used to output the first clock signal and the second clock signal to the display panel according to the switch control signal, which can change the refresh rate of the display panel in real time and reduce the power consumption of the high refresh rate display panel. At the same time, the output module outputs The signal can be continuous and uninterrupted to improve the display effect of
- the tenth embodiment of the present application also provides a display device 3 , including a display panel 31 , a control unit 32 , a source driver 33 , and a gate driver 34 ;
- the display panel 31 is connected to the source driver 33 and the gate driver 34 respectively, and the control unit 32 is connected to the source driver 33 and the gate driver 34 respectively;
- the control unit 32 includes the drive circuit provided by any one of the first embodiment to the ninth embodiment of the present application;
- the drive circuit 35 of the control unit 32 is connected to the gate driver 34 .
- the functions of the display device include the functions of the driving circuits provided in the above-mentioned first to ninth embodiments, which will not be repeated here.
- the display device may include, but not limited to, a display panel, a control unit, a source driver, a gate driver, and a driving circuit for controlling a power supply.
- FIG. 11 is only an example of a display device, and does not constitute a limitation to the display device. It may include more or less components than shown in the figure, or combine certain components, or different components, such as It may also include input and output devices, network access devices, etc.
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Abstract
Description
Claims (15)
- 一种显示面板的驱动电路,其中,包括生成模块、输出模块和开关控制模块;所述输出模块分别与所述生成模块和所述开关控制模块电连接;所述生成模块用于接收第一时钟信号、第二时钟信号、第一控制信号和第二控制信号,根据所述第一控制信号和所述第二控制信号,对所述第一时钟信号和所述第二时钟信号进行处理得到生成信号,并输出所述生成信号至所述输出模块;所述第一时钟信号和所述第二时钟信号具有预设相位差;所述开关控制模块用于根据接收到的第一电平信号、第二电平信号和第三控制信号输出开关控制信号至所述输出模块;在所述第三控制信号为低电平时,所述输出模块用于根据所述开关控制信号输出所述生成信号至栅极驱动器;在所述第三控制信号为高电平时,所述输出模块还用于根据所述开关控制信号输出所述第一时钟信号或所述第二时钟信号至栅极驱动器。
- 如权利要求1所述的驱动电路,其中,所述生成模块包括第一生成单元和第二生成单元;所述第一生成单元和第二生成单元分别与所述输出模块电连接;所述第一生成单元用于在第一时间段内对所述第一时钟信号进行处理得到第一生成信号,并输出所述第一生成信号至所述输出模块;所述第一生成单元还用于在所述第二时间段内对所述第二时钟信号进行处理得到第一生成信号,并输出所述第一生成信号至所述输出模块;所述第二生成单元用于在第一时间段内对所述第二时钟信号进行处理得到第二生成信号,并输出所述第二生成信号至所述输出模块;所述第二生成单元还用于在所述第二时间段内对所述第一时钟信号进行处理得到第二生成信号,并输出所述第二生成信号至所述输出模块;其中,所述第一时间段内所述第一控制信号为高电平且所述第二控制信号为低电平,所述第二时间段内所述第一控制信号为低电平且所述第二控制信号为高电平。
- 如权利要求2所述的驱动电路,其中,所述第一生成单元包括第一电子开关和第二电子开关;所述第一电子开关的漏极与所述第二电子开关的漏极电连接,所述第一电子开关的源极用于接收所述第一时钟信号,所述第一电子开关的栅极用于接收所述第一控制信号,所述第一电子开关的漏极用于在所述第一时间段内,输出所述第一时钟信号至所述输出模块;所述第二电子开关的源极用于接收所述第二时钟信号,所述第二电子开关的栅极用于接收所述第二控制信号,所述第二电子开关的漏极用于在所述第二时间段内,输出所述第二时钟信号至所述输出模块。
- 如权利要求2所述的驱动电路,其中,所述第二生成单元包括第三电子开关和第四电子开关;所述第三电子开关的漏极与所述第四电子开关的漏极电连接,所述第三电子开关的源极用于接收所述第二时钟信号,所述第三电子开关的栅极用于接收所述第一控制信号,所述第三电子开关的漏极用于在所述第一时间段内,输出所述第二时钟信号至所述输出模块;所述第四电子开关的源极用于接收所述第一时钟信号,所述第四电子开关的栅极用于接收所述第二控制信号,所述第四电子开关的漏极用于在所述第二时间段内,输出所述第一时钟信号至所述输出模块。
- 如权利要求1所述的驱动电路,其中,所述输出模块包括第一输出单元和第二输出单元;所述第一输出单元分别与第一生成单元和所述开关控制模块电连接,所述第二输出单元分别与第二生成单元和所述开关控制模块电连接;所述第一输出单元用于在所述第三控制信号为低电平时,接收第一生成信号,并输出所述第一生成信号至所述栅极驱动器;还用于在所述第三控制信号为高电平时,接收所述第一时钟信号,并输出所述第一时钟信号至所述栅极驱动器;所述第二输出单元用于在所述第三控制信号为低电平时,接收第二生成信号,并输出所述第二生成信号至所述栅极驱动器;还用于在所述第三控制信号为高电平时,接收所述第二时钟信号,并输出所述第二时钟信号至所述栅极驱动器。
- 如权利要求5所述的驱动电路,其中,所述第一输出单元包括第五电子开关和第六电子开关;所述第五电子开关的漏极和所述第六电子开关的漏极电连接,所述第五电子开关的源极用于接收所述第一时钟信号,所述第五电子开关的栅极用于接收所述开关控制信号,所述第五电子开关的漏极用于在所述第三控制信号为高电平时,输出所述第一时钟信号至所述栅极驱动器;所述第六电子开关的源极用于接收所述第一生成信号,所述第六电子开关的栅极用于接收所述开关控制信号,所述第六电子开关的漏极用于在所述第三控制信号为低电平时,输出所述第一生成信号至所述栅极驱动器。
- 如权利要求5所述的驱动电路,其中,所述第二输出单元包括第七电子开关和第八电子开关;所述第七电子开关的漏极和所述第八电子开关的漏极电连接,所述第七电子开关的源极用于接收所述第二时钟信号,所述第七电子开关的栅极用于接收所述开关控制信号,所述第七电子开关的漏极用于在所述第三控制信号为高电平时,输出所述第二时钟信号至所述栅极驱动器;所述第八电子开关的源极用于接收所述第二生成信号,所述第八电子开关的栅极用于接收所述开关控制信号,所述第八电子开关的漏极用于在所述第三控制信号为低电平时,输出所述第二生成信号至所述栅极驱动器。
- 如权利要求1所述的驱动电路,其中,所述开关控制模块包括第一开关单元和第二开关单元;所述第一开关单元分别与所述第二开关单元、第一输出单元及第二输出单元电连接,所述第二开关单元分别与所述第一输出单元和第二输出单元电连接;所述第一开关单元用于接收第一电平信号,在所述第三控制信号为低电平时,输出第一开关控制信号至所述第一输出单元和第二输出单元,所述第一开关控制信号为高电平;所述第二开关单元用于接收第二电平信号和第三控制信号,在所述第三控制信号为高电平时,输出第二开关控制信号至所述第一输出单元和第二输出单元,所述第二开关控制信号为高电平。
- 如权利要求8所述的驱动电路,其中,所述第一开关单元包括第九电子开关,所述第二开关单元包括第十电子开关;所述第九电子开关的源极和栅极用于接收所述第一电平信号,所述第九电子开关的漏极用于当所述第三控制信号为低电平时,输出所述第一开关控制信号至第一输出单元的第六电子开关和第二输出单元的第八电子开关;所述第十电子开关的源极用于接收所述第二电平信号,所述第十电子开关的栅极用于接收所述第三控制信号,所述第十电子开关的漏极用于当所述第三控制信号为高电平时,输出所述第二开关控制信号至第一输出单元的第五电子开关和第二输出单元的第七电子开关。
- 如权利要求1所述的驱动电路,其中,所述开关控制模块用于获取显示面板的显示状态,并根据所述显示面板的显示状态调整所述第三控制信号的电平。
- 如权利要求10所述的驱动电路,其中,所述开关控制模块用于:当显示面板的显示画面刷新率低于预设阈值时,调整所述第三控制信号切换至高电平;当显示面板的显示画面刷新率高于预设阈值时,调整所述第三控制信号切换至低电平。
- 如权利要求1所述的驱动电路,其中,所述预设相位差的范围为0度至180度。
- 如权利要求1所述的驱动电路,其中,所述第一控制信号和所述第二控制信号的相位差为90度。
- 如权利要求1所述的驱动电路,其中,所述第一电平信号为高电平信号,所述第二电平信号为低电平信号,所述第三控制信号为高低电平可调的脉冲信号。
- 一种显示装置,其中,包括显示面板、控制单元、源极驱动器、栅极驱动器;所述显示面板分别与所述源极驱动器和所述栅极驱动器连接,所述控制单元分别与所述源极驱动器和所述栅极驱动器连接;所述控制单元包括如权利要求1所述的驱动电路;所述控制单元的驱动电路与所述栅极驱动器连接。
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KR1020237027341A KR20230129534A (ko) | 2021-07-30 | 2022-06-30 | 디스플레이 패널 구동회로 및 디스플레이 장치 |
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CN114362324A (zh) * | 2022-01-24 | 2022-04-15 | 深圳创维-Rgb电子有限公司 | 面板充电电路和面板充电终端设备 |
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CN113570996A (zh) | 2021-10-29 |
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