WO2020113659A1 - 一种驱动方法、驱动电路及显示装置 - Google Patents
一种驱动方法、驱动电路及显示装置 Download PDFInfo
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- WO2020113659A1 WO2020113659A1 PCT/CN2018/121208 CN2018121208W WO2020113659A1 WO 2020113659 A1 WO2020113659 A1 WO 2020113659A1 CN 2018121208 W CN2018121208 W CN 2018121208W WO 2020113659 A1 WO2020113659 A1 WO 2020113659A1
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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
- G09G3/3674—Details of drivers for scan electrodes
- G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
-
- 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
-
- 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
- G09G3/3685—Details of drivers for data electrodes
- G09G3/3688—Details of drivers for data electrodes suitable for active matrices only
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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
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/18—Timing circuits for raster scan displays
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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
- 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
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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
- G09G2310/00—Command of the display device
- G09G2310/06—Details of flat display driving waveforms
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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
- 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
Definitions
- the present application design and display technology field particularly relates to a driving method, a driving circuit and a display device.
- the system board passes the R/G/B compressed signal, control signal and power signal through the wire and the printed circuit board (Printed Circuit Board, PCB)
- the connectors are connected, and then the video data is processed by the Timing Controller (TCON) chip on the printed circuit board, and then through the printed circuit board, through the source film driver chip (Source-Chip on Film, S-COF) and The gate film driving chip (Gate-Chip Film, G-COF) is connected to the display area of the panel, thereby enabling the liquid crystal display to obtain the required power signal.
- TCON Timing Controller
- the driving circuit needs to be initialized after the thin film transistor liquid crystal display is powered on, the voltage difference across the corresponding liquid crystal will appear when the scanning line is turned on, thereby causing abnormal flashing.
- An object of the present application is to provide a driving method, including but not limited to, when the scanning line is turned on, the voltage difference appearing across the corresponding liquid crystal is eliminated, thereby eliminating the phenomenon of the occurrence of flashing abnormality.
- An object of this application is to provide a driving method, including:
- the timing control circuit receives the execution control signal, and outputs a start scan signal according to the execution control signal.
- the calculating the drive control signal and the drive voltage signal and outputting the corresponding execution control signal includes:
- the execution control signal is set to a low-level signal
- the execution control signal is set to a low-level signal
- the execution control signal is set to a high-level signal.
- the driving circuit is a source driving chip.
- the timing control circuit is a timing control chip, and the timing control chip is configured to output a start scan signal to the source driving chip.
- the timing control circuit receives the execution control signal and outputs a start scan signal according to the execution control signal, including:
- the start scan signal is output through the timing control circuit.
- the driving method further includes:
- timing control circuit After the timing control circuit outputs the start scan signal, it stops receiving the execution control signal.
- the voltage of the initial scan signal is a reference voltage for deflection of liquid crystal molecules.
- Another object of the present application is to provide a driving circuit, the driving circuit includes:
- Scan drive circuit set to output drive voltage signal
- the timing control circuit is set to output drive control signals
- the logic processing circuit is respectively connected to the driving circuit and the timing control circuit, and is configured to perform and calculate the driving control signal and the driving voltage signal, and output a corresponding execution control signal;
- the timing control circuit is further configured to output a start scan signal according to the execution control signal.
- the logic processing circuit includes an AND gate, and the first input terminal of the AND gate is connected as a first input terminal of the logic processing circuit to the drive control signal output terminal of the timing control circuit,
- the second input terminal of the AND gate is used as the second input terminal of the logic processing circuit to be connected to the drive voltage signal output terminal of the scan drive circuit, and the output terminal of the AND gate is used as the output terminal of the logic processing circuit .
- the timing control circuit is a timing control chip, and the logic processing circuit is integrated in the timing control chip.
- the scan driving circuit is a driving chip, and the logic processing circuit is integrated in the driving chip.
- the start scan signal is output through the timing control circuit.
- the timing control circuit after the timing control circuit outputs the start scan signal, it stops receiving the execution control signal.
- Yet another object of this application is to provide a display device, including:
- control circuit includes a drive circuit
- the driving circuit includes:
- Scan drive circuit set to output drive voltage signal
- the timing control circuit is set to output drive control signals
- the logic processing circuit is respectively connected to the driving circuit and the timing control circuit, and is configured to perform and calculate the driving control signal and the driving voltage signal, and output a corresponding execution control signal;
- the timing control circuit is further configured to output a start scan signal according to the execution control signal.
- An embodiment of the present application provides a driving amplifier, a driving circuit, and a display device, by receiving a driving control signal output from a timing control circuit and a driving voltage signal output from the driving circuit, and performing the driving control signal and the driving voltage signal And calculation to output the corresponding execution control signal, and then the timing control circuit outputs the starting scan signal according to the execution control signal, so that the scan signal can be effectively output, and the drive circuit is initialized after the thin film transistor liquid crystal display is powered on When the scan line is turned on, the voltage difference across the corresponding liquid crystal is eliminated, thereby eliminating the purpose of the flashing phenomenon.
- FIG. 1 is a schematic flowchart of a driving method provided by an embodiment of the present application
- TP drive control signal
- Sout drive voltage signal
- OP execution control signal
- FIG. 3 is a schematic flowchart of a driving method provided by another embodiment of this application.
- FIG. 4 is a schematic structural diagram of a driving circuit provided by an embodiment of the present application.
- FIG. 5 is a schematic structural diagram of a driving circuit provided by another embodiment of the present application.
- FIG. 6 is a schematic structural diagram of a driving circuit provided by another embodiment of the present application.
- FIG. 7 is a schematic structural diagram of a driving circuit provided by another embodiment of the present application.
- FIG. 8 is a structural block diagram of a display device provided by an embodiment of the present application.
- FIG. 1 is a schematic flowchart of a driving method provided by an embodiment of the present application.
- the driving method in this embodiment includes:
- Step S10 Receive the drive control signal output by the timing control circuit and the drive voltage signal output by the drive circuit;
- Step S20 Perform calculation and calculation on the drive control signal and the drive voltage signal, and output a corresponding execution control signal;
- Step S30 The timing control circuit receives the execution control signal, and outputs a start scan signal according to the execution control signal.
- the timing control circuit is a timing control chip (T-CON), and the driving circuit is a source driving chip, wherein the timing control chip is configured to output a driving control signal to the source driving chip and output a start scan signal.
- T-CON timing control chip
- the driving circuit is a source driving chip, wherein the timing control chip is configured to output a driving control signal to the source driving chip and output a start scan signal.
- the timing control chip is further configured to output a start scan signal to the driver IC (Gate).
- the reference voltage (Vcom) When the thin film transistor liquid crystal display is powered on, the reference voltage (Vcom) will reach the set reference voltage in a very short time, and the drive circuit output voltage (Sout) due to reset is still in voltage overflow
- the execution control The signal is output to the timing control circuit, which is set to control the timing control circuit to output a starting scan signal, which is set to control the driving chip to output a scanning signal set to turn on the pixel unit in the display panel.
- the calculating the drive control signal and the drive voltage signal and outputting the corresponding execution control signal includes:
- the execution control signal is set to a low-level signal
- the execution control signal is set to a low-level signal
- the execution control signal is set to a high-level signal.
- FIG. 2 is a waveform diagram of a driving control signal (TP), a driving voltage signal (Sout), and an execution control signal (OP) provided by an embodiment of the present application.
- TP driving control signal
- Sout driving voltage signal
- OP execution control signal
- the timing control circuit outputs the start scan signal after receiving the execution control signal, and the display panel start working.
- the timing control circuit receives the execution control signal and outputs a start scan signal according to the execution control signal, including:
- the start scan signal is output through the timing control circuit.
- the timing control circuit if the execution control signal is low, the timing control circuit does not output the start scan signal.
- FIG. 3 is a schematic flowchart of a driving method according to another embodiment of this application.
- the driving method in this embodiment further includes:
- Step S40 After the timing control circuit outputs the start scan signal, stop receiving the execution control signal.
- the timing control circuit After the timing control circuit outputs the start scan signal, the display panel is turned on. Therefore, the timing control circuit stops receiving the execution control signal and is no longer affected by the execution control signal. Only after the display panel is turned on next time, the timing The control circuit outputs the drive control signal again.
- the voltage of the initial scan signal is a reference voltage for deflection of liquid crystal molecules.
- the driving circuit in this embodiment includes:
- the scanning driving circuit 10 is set to output a driving voltage signal
- the timing control circuit 30 is configured to output drive control signals
- the logic processing circuit 20 is respectively connected to the scan driving circuit 10 and the timing control circuit 30, and is configured to perform and calculate the driving control signal and the driving voltage signal, and output the corresponding execution control signal;
- the timing control circuit 30 is further configured to output a start scan signal according to the execution control signal.
- the timing control circuit 30 is a timing control chip (T-CON), and the scan driving circuit 10 is a source driving chip, wherein the timing control chip is configured to output a driving control signal to the source driving chip and to drive The chip (Gate IC) outputs the start scan signal.
- T-CON timing control chip
- the scan driving circuit 10 is a source driving chip, wherein the timing control chip is configured to output a driving control signal to the source driving chip and to drive The chip (Gate IC) outputs the start scan signal.
- the drive control signal (TP) output from the timing control circuit 30 and the drive voltage signal (Sout) output from the scan drive circuit 10 are calculated, and the corresponding execution control signal (OP ), the execution control signal is output to the timing control circuit, which is set to control the timing control circuit to output a starting scan signal, which is set to control the driving chip to output a scanning signal set to turn on the pixel unit in the display panel.
- the drive control signal (TP) output by the timing control circuit 30 and the drive voltage signal (Sout) output by the scan drive circuit 10 are calculated and include:
- the execution control signal is set to a low-level signal
- the execution control signal is set to a low-level signal
- the execution control signal is set to a high-level signal.
- the timing control circuit outputs the start scan signal after receiving the execution control signal, and the display panel starts to work .
- the start scan signal is output through the timing control circuit.
- the timing control circuit if the execution control signal is low, the timing control circuit does not output the start scan signal.
- the timing control circuit 30 after the timing control circuit 30 outputs the start scan signal, the display panel is turned on. Therefore, the timing control circuit 30 stops receiving the execution control signal and is no longer affected by the execution control signal. Only after the display panel is turned on next time Then, the timing control circuit 30 outputs the drive control signal again.
- the voltage of the initial scan signal is a reference voltage for deflection of liquid crystal molecules.
- FIG. 5 is a schematic structural diagram of a driving circuit provided by another embodiment of the present application.
- the logic processing circuit 20 includes an AND gate AND.
- the first input terminal of the AND gate AND is connected as a first input terminal of the logic processing circuit 20 to the drive control signal output terminal of the timing control circuit 30, and the AND gate AND
- the second input terminal of the logic processing circuit 20 is connected to the drive voltage signal output terminal of the scan driving circuit 10 as the second input terminal, and the output terminal of the AND gate AND is used as the output terminal of the logic processing circuit 20.
- the timing control circuit 30 is further configured to stop receiving the execution control signal after the start scan signal is output.
- the timing control circuit 30 is a timing control chip, and the logic processing circuit 20 is integrated in the timing control chip.
- the scan driving circuit 10 is a driving chip, and the logic processing circuit 20 is integrated in the driving chip.
- FIG. 6 is a schematic structural diagram of a driving circuit provided by another embodiment of the present application. As shown in FIG. 6, the driving circuit in this embodiment includes:
- the scan drive circuit 10 is configured to output a drive voltage signal
- the timing control circuit 30 is set to output a driving control signal
- the scan drive circuit 10 further includes an AND gate processing circuit 101, which is configured to perform AND calculation of the drive control signal and the drive voltage signal, and output a corresponding execution control signal;
- the timing control circuit 30 is further configured to output a start scan signal according to the execution control signal.
- the AND gate processing circuit 101 includes an AND gate AND, and the first input terminal of the AND gate AND is connected as the first input terminal of the AND gate processing circuit 101 to the drive control signal output terminal of the timing control circuit 30, and The second input terminal of the gate AND is connected as the second input terminal of the AND gate processing circuit 101 to the drive voltage signal output terminal of the scan drive circuit 10, and the output terminal of the AND gate AND is used as the output terminal of the AND gate processing circuit 101.
- the driving circuit in this embodiment includes:
- the scan drive circuit 10 is configured to output a drive voltage signal
- the timing control circuit 30 is set to output a driving control signal
- the timing control circuit 30 further includes an AND gate processing circuit 101, and the AND gate processing circuit 101 is configured to AND the drive control signal and the drive voltage signal, and output the corresponding execution control signal;
- the timing control circuit 30 is further configured to output a start scan signal according to the execution control signal.
- the AND gate processing circuit 101 includes an AND gate AND, and the first input terminal of the AND gate AND is connected as the first input terminal of the AND gate processing circuit 101 to the drive control signal output terminal of the timing control circuit 30, and The second input terminal of the gate AND is connected as the second input terminal of the AND gate processing circuit 101 to the drive voltage signal output terminal of the scan drive circuit 10, and the output terminal of the AND gate AND is used as the output terminal of the AND gate processing circuit 101.
- the display device 60 in this embodiment includes:
- control circuit 61 wherein the control circuit 61 includes a driving circuit 610;
- the driving circuit 610 includes:
- the scanning driving circuit 10 is set to output a driving voltage signal
- the timing control circuit 30 is configured to output drive control signals
- the logic processing circuit 20 is respectively connected to the scan driving circuit 10 and the timing control circuit 30, and is configured to perform and calculate the driving control signal and the driving voltage signal, and output the corresponding execution control signal;
- the timing control circuit 30 is further configured to output a start scan signal according to the execution control signal.
- the timing control circuit 30 is a timing control chip (T-CON), and the scan driving circuit 10 is a source driving chip, wherein the timing control chip is configured to output a driving control signal to the source driving chip and to drive The chip (Gate IC) outputs the start scan signal.
- T-CON timing control chip
- the scan driving circuit 10 is a source driving chip, wherein the timing control chip is configured to output a driving control signal to the source driving chip and to drive The chip (Gate IC) outputs the start scan signal.
- the drive control signal (TP) output from the timing control circuit 30 and the drive voltage signal (Sout) output from the scan drive circuit 10 are calculated, and the corresponding execution control signal (OP ), the execution control signal is output to the timing control circuit, which is set to control the timing control circuit to output a starting scan signal, which is set to control the driving chip to output a scanning signal set to turn on the pixel unit in the display panel.
- the drive control signal (TP) output by the timing control circuit 30 and the drive voltage signal (Sout) output by the scan drive circuit 10 are calculated and include:
- the execution control signal is set to a low-level signal
- the execution control signal is set to a low-level signal
- the execution control signal is set to a high-level signal.
- the timing control circuit outputs the start scan signal after receiving the execution control signal, and the display panel starts to work .
- the start scan signal is output through the timing control circuit.
- the timing control circuit if the execution control signal is low, the timing control circuit does not output the start scan signal.
- the timing control circuit 30 after the timing control circuit 30 outputs the start scan signal, the display panel is turned on. Therefore, the timing control circuit 30 stops receiving the execution control signal and is no longer affected by the execution control signal. Only after the display panel is turned on next time Then, the timing control circuit 30 outputs the drive control signal again.
- the voltage of the initial scan signal is a reference voltage for deflection of liquid crystal molecules.
- FIG. 5 is a schematic structural diagram of a driving circuit provided by another embodiment of the present application.
- the logic processing circuit 20 includes an AND gate AND.
- the first input terminal of the AND gate AND is connected as a first input terminal of the logic processing circuit 20 to the drive control signal output terminal of the timing control circuit 30, and the AND gate AND
- the second input terminal of the logic processing circuit 20 is connected to the drive voltage signal output terminal of the scan driving circuit 10 as the second input terminal, and the output terminal of the AND gate AND is used as the output terminal of the logic processing circuit 20.
- the timing control circuit 30 is further configured to stop receiving the execution control signal after the start scan signal is output.
- the timing control circuit 30 is a timing control chip, and the logic processing circuit 20 is integrated in the timing control chip.
- the scan driving circuit 10 is a driving chip, and the logic processing circuit 20 is integrated in the driving chip.
- the driving circuit 610 includes:
- the scan drive circuit 10 is configured to output a drive voltage signal
- the timing control circuit 30 is set to output a driving control signal
- the scan drive circuit 10 further includes an AND gate processing circuit 101, which is configured to perform AND calculation of the drive control signal and the drive voltage signal, and output a corresponding execution control signal;
- the timing control circuit 30 is further configured to output a start scan signal according to the execution control signal.
- the AND gate processing circuit 101 includes an AND gate AND, and the first input terminal of the AND gate AND is connected as the first input terminal of the AND gate processing circuit 101 to the drive control signal output terminal of the timing control circuit 30, and The second input terminal of the gate AND is connected as the second input terminal of the AND gate processing circuit 101 to the drive voltage signal output terminal of the scan drive circuit 10, and the output terminal of the AND gate AND is used as the output terminal of the AND gate processing circuit 101.
- the driving circuit 610 may further include:
- the scan drive circuit 10 is configured to output a drive voltage signal
- the timing control circuit 30 is set to output a driving control signal
- the timing control circuit 30 further includes an AND gate processing circuit 101, which is configured to AND the drive control signal and the drive voltage signal, and output a corresponding execution control signal;
- the timing control circuit 30 is further configured to output a start scan signal according to the execution control signal.
- the AND gate processing circuit 101 includes an AND gate AND.
- the first input terminal of the AND gate AND is connected as the first input terminal of the AND gate processing circuit 101 to the drive control signal output terminal of the timing control circuit 30, and
- the second input terminal of the gate AND is connected as the second input terminal of the AND gate processing circuit 101 to the drive voltage signal output terminal of the scan drive circuit 10, and the output terminal of the AND gate AND is used as the output terminal of the AND gate processing circuit 101.
- the display device 60 may be any type of display device provided with the drive circuit 610, such as a liquid crystal display device (Liquid Crystal Display, LCD), an organic electro-laser display (Organic Electroluminesence Display, OLED) display device, Quantum dot light emitting diode (Quantum Dot Light Emitting Diodes, QLED) display device or curved display device, etc.
- a liquid crystal display device Liquid Crystal Display, LCD
- OLED Organic Electroluminesence Display
- QLED Quantum dot light emitting diode
- QLED Quantum Dot Light Emitting Diodes
- the display panel 62 includes a pixel array composed of multiple rows of pixels and multiple columns of pixels.
- control circuit 61 may be implemented by a general-purpose integrated circuit, such as a central processing unit (Central Processing Unit, CPU), or an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC).
- CPU Central Processing Unit
- ASIC Application Specific Integrated Circuit
- An embodiment of the present application provides a driving amplifier, a driving circuit, and a display device, by receiving a driving control signal output from a timing control circuit and a driving voltage signal output from the driving circuit, and performing the driving control signal and the driving voltage signal And calculation to output the corresponding execution control signal, and then the timing control circuit outputs the starting scan signal according to the execution control signal, so that the scan signal can be effectively output, and the drive circuit is initialized after the thin film transistor liquid crystal display is powered on When the scan line is turned on, the voltage difference across the corresponding liquid crystal is eliminated, thereby eliminating the purpose of the flashing phenomenon.
- the storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM) or a random access memory (Random Access Memory, RAM), etc.
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- Crystallography & Structural Chemistry (AREA)
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Abstract
Description
Claims (19)
- 一种驱动方法,包括:接收时序控制电路输出的驱动控制信号和驱动电路输出的驱动电压信号;将所述驱动控制信号和所述驱动电压信号进行与计算,并输出对应的执行控制信号;所述时序控制电路接收所述执行控制信号,并根据所述执行控制信号输出起始扫描信号。
- 如权利要求1所述的驱动方法,其中,所述将所述驱动控制信号和所述驱动电压信号进行与计算,并输出对应的执行控制信号,包括:若所述驱动控制信号为低电平信号,所述驱动电压信号为高电平信号,则将所述执行控制信号设置为低电平信号;若所述驱动控制信号为高电平信号,所述驱动电压信号为低电平信号,则将所述执行控制信号设置为低电平信号;若所述驱动控制信号为高电平信号,所述驱动电压信号为高电平信号,则将所述执行控制信号设置为高电平信号。
- 如权利要求1所述的驱动方法,其中,所述驱动电路为源极驱动芯片。
- 如权利要求3所述的驱动方法,其中,所述时序控制电路为时序控制芯片,所述时序控制芯片设置为向所述源极驱动芯片输出起始扫描信号。
- 如权利要求1所述的驱动方法,其中,所述时序控制电路接收所述执行控制信号,并根据所述执行控制信号输出起始扫描信号,包括:若所述执行控制信号为高电平信号,则通过所述时序控制电路输出所述起始扫描信号。
- 如权利要求1所述的驱动方法,其中,所述驱动方法还包括:在所述时序控制电路输出所述起始扫描信号后,停止接收所述执行控制信号。
- 如权利要求1所述的驱动方法,其中,所述起始扫描信号的电压为液晶分子偏转的基准电压。
- 一种驱动电路,所述驱动电路包括:扫描驱动电路,设置为输出驱动电压信号;时序控制电路,设置为输出驱动控制信号;以及逻辑处理电路,分别与所述驱动电路和所述时序控制电路连接,设置为将所述驱动控制信号和所述驱动电压信号进行与计算,并输出对应的执行控制信号;所述时序控制电路,还设置为根据所述执行控制信号输出起始扫描信号。
- 如权利要求8所述的驱动电路,其中,所述逻辑处理电路,包括与门,所述与门的第一输入端作为所述逻辑处理电路的第一输入端与所述时序控制电路的驱动控制信号输出端连接,所述与门的第二输入端作为所述逻辑处理电路的第二输入端与所述扫描驱动电路的驱动电压信号输出端连接,所述与门的输出端作为所述逻辑处理电路的输出端。
- 如权利要求8所述的驱动电路,其中,所述时序控制电路为时序控制芯片,所述逻辑处理电路集成于所述时序控制芯片内。
- 如权利要求8所述的驱动电路,其中,所述扫描驱动电路为驱动芯片,所述逻辑处理电路集成于所述驱动芯片内。
- 如权利要求8所述的驱动电路,其中,所述执行控制信号为高电平信号时,则通过所述时序控制电路输出所述起始扫描信号。
- 如权利要求8所述的驱动电路,其中,所述时序控制电路输出所述起始扫描信号后,停止接收所述执行控制信号。
- 一种显示装置,包括:显示面板;以及控制电路,所述控制电路包括驱动电路;所述驱动电路包括:扫描驱动电路,设置为输出驱动电压信号;时序控制电路,设置为输出驱动控制信号;以及逻辑处理电路,分别与所述驱动电路和所述时序控制电路连接,设置为将所述驱动控制信号和所述驱动电压信号进行与计算,并输出对应的执行控制信号;所述时序控制电路,还设置为根据所述执行控制信号输出起始扫描信号。
- 如权利要求14所述的显示装置,其中,所述逻辑处理电路,包括与门,所述与门的第一输入端作为所述逻辑处理电路的第一输入端与所述时序控制电路的驱动控制信号输出端连接,所述与门的第二输入端作为所述逻辑处理电路的第二输入端与所述扫描驱动电路的驱动电压信号输出端连接,所述与门的输出端作为所述逻辑处理电路的输出端。
- 如权利要求14所述的显示装置,其中,所述时序控制电路为时序控制芯片,所述逻辑处理电路集成于所述时序控制芯片内。
- 如权利要求14所述的显示装置,其中,所述扫描驱动电路为驱动芯片,所述逻辑处理电路集成于所述驱动芯片内。
- 如权利要求14所述的显示装置,其中,所述执行控制信号为高电平信号时,则通过所述时序控制电路输出所述起始扫描信号。
- 如权利要求14所述的显示装置,其中,所述时序控制电路输出所述起始扫描信号后,停止接收所述执行控制信号。
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CN115862562A (zh) * | 2022-12-21 | 2023-03-28 | 业成科技(成都)有限公司 | 一种液晶屏开机的驱动方法及其驱动电路 |
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