WO2020052121A1 - 驱动装置、阵列基板及显示装置 - Google Patents
驱动装置、阵列基板及显示装置 Download PDFInfo
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- WO2020052121A1 WO2020052121A1 PCT/CN2018/120077 CN2018120077W WO2020052121A1 WO 2020052121 A1 WO2020052121 A1 WO 2020052121A1 CN 2018120077 W CN2018120077 W CN 2018120077W WO 2020052121 A1 WO2020052121 A1 WO 2020052121A1
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- control
- pixel electrode
- potential
- switch
- circuit
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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
- G09G3/3696—Generation of voltages supplied to electrode drivers
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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
Definitions
- the present application relates to the field of display technology, and in particular, to a driving device, an array substrate, and a display device.
- a scan line in the display panel is not turned on for a long time, the charging time is relatively short. If the voltage on the pixel electrode is changed from positive polarity Switch to negative polarity, or switch the voltage on the pixel electrode from negative polarity to positive polarity, the voltage across the pixel electrode is difficult to reach the required voltage value within a limited charging time, and the liquid crystal molecules rotate insufficiently. Causes poor liquid crystal dynamic capacitance effect.
- An object of the present application is to provide a driving device, an array substrate, and a display device, including, but not limited to, a solution: due to insufficient charging time of a pixel electrode in a display panel, when performing voltage polarity switching, exemplary techniques cannot be performed during the charging time. When the pixel electrode is switched to a target voltage, the screen of the display panel is abnormally inadequate.
- a driving device provided on a display panel including:
- a control circuit connected to a plurality of control lines, the control circuit controlling each control line to switch between a first potential and a second potential;
- a power supply driving circuit connected to a plurality of signal lines having different voltage values
- a power selection circuit a control end of the power selection circuit is electrically coupled to the plurality of control lines, an input end of the power selection circuit is electrically coupled to the plurality of signal lines, and an output end of the power selection circuit Electrically coupled to a pixel electrode of the display panel;
- the power source selection circuit enables one of the plurality of signal lines to form a path with the pixel electrode according to the potential switching results of the plurality of control lines, and adjusts the voltage value of the pixel electrode to the plurality of pixel lines.
- the voltage value of one of the signal lines is not limited to one of the signal lines.
- the driving device further includes:
- a communication circuit connected between the control circuit and the mobile terminal.
- the communication circuit generates a level selection signal according to a user's operation instruction.
- the communication circuit is a wired communication circuit or a wireless communication circuit.
- the plurality of control lines include a first control line and a second control line
- the plurality of signal lines include a first signal line, a second signal line, and a third signal line;
- the first control line is a first potential
- the second control line is a second potential
- the power supply selection circuit makes the first signal line and the pixel electrode form a path
- the first control line is a second potential
- the second control line is a first potential
- the power supply selection circuit makes the second signal line and the pixel electrode form a path
- the first control line is a second potential
- the second control line is a second potential
- the power supply selection circuit makes the third signal line and the pixel electrode form a path
- the first control line is a first potential
- the second control line is a first potential
- the power supply selection circuit causes the pixel electrode and the first signal line, the second signal line, and the first An open circuit is formed between the three signal lines.
- the first potential and the second potential are staggered in phase.
- the first potential is a low potential
- the second potential is a high potential
- the first potential is a high potential
- the second potential is a low potential
- the first signal line transmits a positive voltage signal
- the second signal line transmits a negative voltage signal
- the third signal line transmits a reference voltage signal
- the pixel electrode when the first signal line is connected to the pixel electrode, the pixel electrode has a positive voltage
- the pixel electrode When the second signal line is connected to the pixel electrode, the pixel electrode has a negative polarity voltage
- the pixel electrode is a reference voltage.
- the pixel electrode has a positive polarity voltage and the display panel has a high gray scale
- the pixel electrode has a negative voltage, and the display panel has a low gray scale.
- the plurality of control lines include a first control line and a second control line
- the power source selection circuit includes a first active switch group, a second active switch group, and a third active switch group;
- the active switch group includes a first switch and a second switch, a control end of the first switch is connected to the first control line, and a control end of the second switch is connected to the second control line.
- Signal lines are respectively connected to the first end of the first switch, the second end of the first switch is connected to the first end of the second switch of the same active switch group, and the second end of the second switch is electrically coupled Connected to the pixel electrode;
- a control terminal of the first switch of the first active switch group and the second switch of the second active switch group has a first polarity
- the second switch of the first active switch group and the second active switch The first switches of the group, the first switches of the third active switch group and the control terminals of the second switch have the second polarity.
- the first control line is at a first potential
- the second control line is at a second potential
- the first active switch group is turned on
- the first control line is at a second potential, the first control line is at a first potential, and the second active switch group is turned on;
- the first control line is at a first potential
- the second control line is at a first potential
- the third active switch group is turned on.
- the pixel electrode when the first active switch group is turned on, the pixel electrode is connected to a positive polarity voltage value
- the pixel electrode When the second active switch group is turned on, the pixel electrode is connected to a negative polarity voltage value
- the pixel electrode is connected to a reference voltage value.
- the first polarity is reverse polarity and the second polarity is positive polarity; or the first polarity is positive polarity and the second polarity is reverse polarity.
- the first switch of the first active switch group and the second switch of the second active switch group are P-type field effect transistors; the second switch of the first active switch group, the The first switch of the second active switch group, the first switch and the second switch of the third active switch group are N-type field effect transistors.
- the first switch of the first active switch group and the second switch of the second active switch group are N-type field effect transistors; the second switch of the first active switch group, the The first switch of the second active switch group, the first switch and the second switch of the third active switch group are P-type field effect transistors.
- Another object of the present application is to provide an array substrate, including:
- a pixel electrode defined by the intersection of the control line and the signal line
- a driving device arranged on the display panel
- the driving device includes:
- a control circuit connected to a plurality of control lines, the control circuit controlling each control line to switch between a first potential and a second potential;
- a power supply driving circuit connected to a plurality of signal lines having different voltage values
- a power selection circuit a control end of the power selection circuit is electrically coupled to the plurality of control lines, an input end of the power selection circuit is electrically coupled to the plurality of signal lines, and an output end of the power selection circuit Pixel electrodes electrically coupled to the display panel;
- the power source selection circuit enables one of the plurality of signal lines to form a path with the pixel electrode according to the potential switching results of the plurality of control lines, and adjusts the voltage value of the pixel electrode to the plurality of pixel lines.
- the voltage value of one of the signal lines is not limited to one of the signal lines.
- the driving device further includes:
- a communication circuit connected between the control circuit and the mobile terminal.
- the communication circuit generates a level selection signal according to a user's operation instruction.
- the array substrate includes at least two control lines and at least three signal lines;
- the power supply selection circuit includes at least three active switch groups, each of which is correspondingly connected to each signal line, and the active switch group is turned on or off according to a potential switching result of the control line;
- each of the active switch groups includes a first switch and a second switch
- the control end of the first switch is connected to the control line
- the control end of the second switch is connected to the control line
- the control line to which the control end of the first switch is connected It is different from the control line connected to the control end of the second switch, the first end of the first switch is connected to the signal line, and the second end of the first switch is connected to the first of the second switch.
- Terminal, the second terminal of the second switch is electrically coupled to the pixel electrode.
- Another object of the present application is to provide a display device, including:
- a liquid crystal layer disposed between the first substrate and the second substrate;
- the driving device is disposed on one of the first substrate and the second substrate, and the driving device includes:
- a control circuit connected to a plurality of control lines, the control circuit controlling each control line to switch between a first potential and a second potential;
- a power supply driving circuit connected to a plurality of signal lines having different voltage values
- a power selection circuit a control end of the power selection circuit is electrically coupled to the plurality of control lines, an input end of the power selection circuit is electrically coupled to the plurality of signal lines, and an output end of the power selection circuit Pixel electrodes electrically coupled to the display panel;
- the power source selection circuit enables one of the plurality of signal lines to form a path with the pixel electrode according to the potential switching results of the plurality of control lines, and adjusts the voltage value of the pixel electrode to the plurality of pixel lines The voltage value of one of the signal lines.
- the driving device provided in the embodiment of the present application enables the pixel electrodes to realize charge sharing during the voltage polarity switching process through the power source selection circuit, and the pixel electrodes of the display panel can rise to the target voltage during the charging time, thereby ensuring the charging rate of the display panel. To improve the picture quality of the display panel.
- FIG. 1a is a schematic structural diagram of an exemplary display device according to an embodiment of the present application.
- FIG. 1b is a schematic diagram of an exemplary pixel circuit configuration according to an embodiment of the present application.
- 2a is a schematic structural diagram of a display panel according to an embodiment of the present application.
- FIG. 2b is a schematic diagram of a circuit structure of a driving device according to an embodiment of the present application.
- 2c is a schematic diagram of another circuit architecture of a driving device according to an embodiment of the present application.
- FIG. 3 is a schematic structural diagram of another display panel according to an embodiment of the present application.
- FIG. 4 is a schematic structural diagram of an array substrate provided by an embodiment of the present application.
- An embodiment of the present application provides a display device having a display panel, which includes a first substrate and a second substrate.
- the first substrate and the second substrate may be, for example, an active matrix switch (Thin Film Transistor, TFT) substrate, and a color filter layer ( Color Filter (CF) substrate.
- TFT Thin Film Transistor
- CF Color Filter
- the active array switch and the color filter layer of the present application may also be formed on the same substrate.
- the display panel of the present application may be, for example, a liquid crystal display panel, but is not limited thereto, and may also be an OLED (Organic Electroluminescence Display) display panel, a QLED (Quantum Dot Light Emitting Diodes) , Quantum dot light emitting diode) display panel, plasma display panel, curved display panel or other type of display panel.
- OLED Organic Electroluminescence Display
- QLED Quantum Dot Light Emitting Diodes
- QLED Quantum dot Light emitting diode
- plasma display panel curved display panel or other type of display panel.
- FIG. 1a is a schematic structural diagram of an exemplary display device.
- a display device 200 includes: a control board 100, which includes a timing circuit (Timing Controller, TCON) 101; a printed circuit board 103, and a flexible flat cable between the control board 100 and the control board 100 (Flexible Flat Cable, FFC) 102 are connected; the source driving circuit 104 and the gate driving circuit 105 are arranged in the wiring area 109, and are respectively connected to the source line 104a and the gate line 105a in the display area 106.
- the gate driving circuit 105 and the source driving circuit 104 include, but are not limited to, a flip-chip thin film.
- the driving method of the display device 200 includes: the system motherboard provides color (eg, R / G / B) compression signals, control signals, and power to the control board 100.
- the timing controller (TCON) 101 on the control board 100 and the processing of these signals are transmitted to the printed circuit board through a flexible flat cable (FFC) 102 together with the power processed by the driving circuit.
- the gate driving circuit 105 and the source driving circuit 104 of 103, the gate driving circuit 105 and the source driving circuit 104 transmit necessary data and power to the display area 106, so that the display device 200 obtains the power required for displaying the picture, signal.
- FIG. 1b is a schematic diagram of an exemplary pixel circuit configuration. Please cooperate with Figure 1a to facilitate understanding.
- the gate driving circuit 105 supplies scanning signals to the gate lines 105a one line at a time, and provides scanning signals to one line of the gate lines 105a every scanning period.
- the source line 104a of the display panel is opened one by one, and the source driving circuit 104 provides data to the pixel circuit P through the source line 104a.
- the pixel circuit P includes a storage capacitor (Cst) and a liquid crystal capacitor (Clc).
- the storage capacitor (Cst) is formed by a pixel electrode and an array shared line (AA) Com, and the liquid crystal capacitor (Clc) is formed on a color film common electrode (CF) com) and the pixel electrode.
- AA array shared line
- CF color film common electrode
- a signal line in the display panel is not turned on for a long time, so the charging time is relatively short. If the voltage on the pixel electrode is switched from positive polarity to negative polarity, the cross-voltage is large, and the pixel electrode It is difficult to reach the required voltage value within a limited charging time. Furthermore, the liquid crystal molecules are insufficiently rotated, which causes a poor liquid crystal dynamic capacitance effect.
- FIG. 2a is a schematic structural diagram of a display panel according to an embodiment of the present application. Please cooperate with FIG. 1a to FIG. 1b at the same time to facilitate understanding.
- a driving device provided in an embodiment of the present application includes: a control circuit 310 connected to a plurality of control lines 310a, the control circuit 310 controls the control line 310a to switch between a first potential and a second potential; a power source;
- the driving circuit 320 is connected to a plurality of signal lines 320a, and the plurality of signal lines 320a have different voltage values; a power source selection circuit 330, and a control terminal of the power source selection circuit 330 is electrically coupled to the plurality of control lines 310a
- An input end of the power selection circuit 330 is electrically coupled to the plurality of signal lines 320a, and an output end of the power selection circuit 330 is electrically coupled to the pixel electrode 340 of the display panel; wherein, the power selection The circuit 330 causes one of the plurality of signal
- the voltage polarity switching process of the pixel electrode 340 can be controlled by the control circuit 310, and the operation is simple; and the power selection circuit 330 can charge the pixel electrode 340 according to the potential switching result of the control circuit 310; The voltage value of the electrode 340 can jump to the voltage value of the signal line 320a. The pixel electrode 340 can be switched to the target voltage within the charging time. The pixel electrode 340 realizes a smooth charging process according to the voltage value of the signal line 320a, and improves the display panel.
- control circuit 310 is a gate driving circuit 105 or a timing controller 101.
- FIG. 2b is a schematic diagram of a circuit structure of a driving device according to an embodiment of the present application.
- the plurality of control lines 310a include a first control line 311 and a second control line 312
- the plurality of signal lines 320a include a first signal line 321 and a second signal line 322 and a third signal line 323
- the first control line 311 is a first potential
- the second control line 312 is a second potential
- the power selection circuit 330 causes the first signal line 321 and the pixel
- the electrode 340 forms a path
- the first control line 311 is a second potential
- the second control line 312 is a first potential
- the power selection circuit 330 causes the second signal line 322 to form a path with the pixel electrode.
- the first control line 311 is a second potential
- the second control line 312 is a second potential
- the power supply selection circuit 330 makes the third signal line 323 and the pixel electrode 340 form a path
- the first control line 311 is a first potential
- the second control line 312 is a first potential
- the power supply selection circuit 330 causes the pixel electrode 340 to communicate with the first signal line 321 and the second signal line 322.
- a disconnection is formed between the third signal line 323 and the third signal line 323.
- two control lines (a first control line 311 and a second control line 312) are used to control the charging process of the pixel electrode 340. Since there is a corresponding potential on each control line, the potential on the control line is further controlled.
- the charging state of the pixel electrode 340 has excellent controllability; when the corresponding signal line forms a path with the pixel electrode 340, the voltage value of the signal line is transmitted to The pixel electrode 340 implements a voltage switching process of the pixel electrode 340.
- the pixel electrode 340 accurately switches to a target voltage according to the voltage value of the signal line, thereby ensuring the normal and stable working process of the pixel electrode 340.
- the first potential and the second potential are staggered in phase; therefore, corresponding voltages exist on the first control line 311 and the second control line 312 and pass through the control line.
- the potential can change the charging process of the signal line and the pixel electrode 340.
- the pixel electrode 340 is connected to a different voltage value, the pixel electrode 340 jumps to the corresponding voltage polarity, and the polarity conversion of the pixel electrode 340 has a very high responding speed.
- the first potential is a low potential and the second potential is a high potential.
- the first potential is a high potential
- the second potential is a low potential
- the pixel electrode 340 in the embodiment of the present application has extremely high control compatibility and a wide applicable range.
- the first signal line 321 transmits a positive voltage signal
- the second signal line 322 transmits a negative voltage signal
- the third signal line 323 transmits a reference voltage signal.
- the pixel electrode 340 when the first signal line 321 is connected to the pixel electrode 340, the pixel electrode 340 has a positive polarity voltage.
- the pixel electrode 340 When the second signal line 322 is connected to the pixel electrode 340, the pixel electrode 340 has a negative voltage.
- the pixel electrode 340 is a reference voltage.
- the first signal line 321 when the first signal line 321 is connected to the pixel electrode 340, the first signal line 321 outputs a positive-polarity voltage signal to the pixel electrode 340, and the voltage of the pixel electrode 340 is raised by the positive-polarity voltage signal, so that The pixel electrode 340 is switched to a positive voltage; when the second signal line 322 is connected to the pixel electrode 340, the second signal line 322 outputs a negative voltage signal to the pixel electrode 340, and the pixel electrode 340 is neutralized by the negative voltage signal Charge in the pixel electrode 340 to reduce the voltage of the pixel electrode 340, and the pixel electrode 340 switches to a negative voltage; when the third signal line 323 is connected to the pixel electrode 340, the third signal line 323 outputs a reference voltage signal to the pixel electrode 340, the voltage of the pixel electrode 340 is switched to the reference voltage by the reference voltage signal; therefore, in the embodiment of the present application, the voltage polarity switching process of the pixel electrode 340
- a voltage value higher than the reference voltage is a positive polarity voltage
- a voltage value lower than the reference voltage is a negative polarity voltage
- the pixel electrode 340 has a positive voltage, and the display panel has a high gray scale.
- the pixel electrode 340 has a negative voltage, and the display panel has a low gray scale.
- the display specifications of each frame of picture pixels are 8 bits, the highest grayscale value is 255, and the lowest grayscale value is 0.
- a grayscale value above 128 is regarded as a high grayscale value. If the grayscale value is less than 128, it is regarded as a low grayscale value.
- control circuit 310 is configured on the control board 100, which may be or be included in the sequential circuit 101;
- power driving circuit 320 is configured on the printed circuit board 103, and
- the first signal line 321 transmits the highest voltage required for the positive display of the screen, the second signal line 322 transmits the highest voltage required for the negative display of the screen, and the third signal line 323 transmits the reference voltage required for the screen display. .
- the multiple control lines include a first control line 311 and a second control line 312;
- the power selection circuit 330 includes a first active switch group 331 and a second active switch Group 332 and a third active switch group 333; each of the active switch groups includes a first switch and a second switch, and a control end of the first switch is connected to the first control line 311, and the second switch The control end is connected to the second control line 312, the plurality of signal lines are respectively connected to the first end of the first switch, and the second end of the first switch is connected to the first of the second switches of the same active switch group Terminal, the second terminal of the second switch is electrically coupled to the pixel electrode 340; wherein the first switch 331a of the first active switch group 331 and the second switch 332b of the second active switch group 332 The control terminal is the first polarity, the second switch 331b of the first active switch group 331, the first switch 332a of the second active switch group 332, and the first switch
- the control end of the first switch 331a is connected to the first control line 311
- the control end of the second switch 331b is connected to the second control line 312
- the plurality of signal lines are respectively connected to the first
- the second end of the first switch 331a is connected to the first end of the second switch 331b
- the second end of the second switch 331b is electrically coupled to the pixel electrode 340.
- the signal line can output the corresponding voltage to the pixel electrode 340 so as to switch the voltage polarity.
- three active switch groups including the first active switch group 331 are included).
- the pixel electrode 340 can be connected to voltage values of different voltage polarities, which improves the stability and controllability of the voltage polarity switching of the pixel electrode 340. Sex.
- the first control line 311 is at a first potential
- the second control line 312 is at a second potential
- the first active switch group 331 is turned on.
- the first control line 311 is at a second potential
- the first control line 312 is at a first potential
- the second active switch group 332 is turned on.
- the first control line 311 is at a first potential
- the second control line 312 is at a first potential
- the third active switch group 333 is turned on.
- the first control line 311 is a second potential
- the second control line 312 is a second potential
- the first active switch group 331, the second active switch group 332, and the first The three active switch groups 333 are all off.
- the first potential is a high potential and the second potential is a low potential; or the first potential is a low potential and the second potential is a high potential;
- Different potential states in a control line 311 and a second control line 312 can control the on or off states of each active switch group, and the corresponding control speed is relatively fast, which can realize a fast switching process of the voltage polarity of the pixel electrode 340.
- the pixel electrode 340 is connected to a positive voltage value.
- the pixel electrode 340 is connected to a negative voltage value.
- the pixel electrode 340 is connected to a reference voltage value.
- the pixel electrode 340 can be switched to a positive polarity voltage by a positive polarity voltage value, the pixel electrode 340 can be switched to a negative polarity voltage by a negative polarity voltage value, and the pixel electrode 340 can be switched by a reference voltage value.
- the pixel electrode 340 can be switched to the corresponding voltage polarity through the on-off state between different active switch groups and the pixel electrode 340; through three active switch groups (the first active switch group 331, the second active switch The group 332 and the third active switch group 333) realize the charge sharing function of the pixel electrode 340, improve the charging rate of the pixel electrode 340, the pixel electrode 30 can access a sufficient charge during the charging time, and the display panel can display a more complete, Clear picture.
- the first active switch group 331, the second active switch The group 332 and the third active switch group 333 realize the charge sharing function of the pixel electrode 340, improve the charging rate of the pixel electrode 340, the pixel electrode 30 can access a sufficient charge during the charging time, and the display panel can display a more complete, Clear picture.
- the pixel electrode 340 stores a negative grayscale value, and when the frame is switched to a positive high grayscale value, the pixel electrode 340 is obtained at the pixel electrode 340.
- the control circuit 310 sets the voltage of the first control line 311 at a high potential and the voltage of the second control line 312 at a low potential.
- the power selection circuit 330 allows the first signal line 321 and the pixel electrode 340 to form a via.
- the positive polarity voltage provided by the power driving circuit 320 is transmitted to the pixel electrode 340, and the negative polarity voltage in the pixel electrode 340 is gradually neutralized, and then converted to the highest voltage required for the positive display of the screen.
- control circuit 310 causes the voltages of the first control line 311 and the second control line 312 to be at a high potential at the same time.
- the power supply selection circuit 330 forms a disconnection between the pixel electrode 340 and the first signal line 321, the second signal line 322, and the third signal line 323.
- the pixel electrode 340 then obtains data provided by the source driving circuit 104, and charges the pixel electrode to a voltage required for actual screen display.
- the pixel electrode 340 stores a positive grayscale value, and needs to be obtained at the pixel electrode 340 when the frame is switched to a negative high grayscale value in the frame.
- the control circuit 310 sets the voltage of the first control line 311 at a low potential and the voltage of the second control line 312 at a high potential.
- the power selection circuit 330 allows the second signal line 322 and the pixel electrode 340 to form a via.
- the negative polarity voltage provided by the power driving circuit 320 is transmitted to the pixel electrode 340, and the positive polarity voltage in the pixel electrode 340 is gradually neutralized, and then converted to the highest voltage required for the negative polarity display of the screen.
- control circuit 310 causes the voltages of the first control line 311 and the second control line 312 to be at a high potential at the same time.
- the power supply selection circuit 330 forms a disconnection between the pixel electrode 340 and the first signal line 321, the second signal line 322, and the third signal line 323.
- the pixel electrode 340 then obtains data provided by the source driving circuit 104, and charges the pixel electrode to a voltage required for actual screen display.
- the pixel electrode 340 needs to obtain data provided by the source driving circuit 104 at the pixel electrode 340 when the frame image is switched to a low grayscale value of positive polarity or negative polarity.
- the control circuit 310 caused the voltages of the first control line 311 and the second control line 312 to be at a low potential
- the power selection circuit 330 caused the third signal line 323 and the pixel electrode 340 to be at a low potential.
- a reference voltage required for screen display provided by the power supply driving circuit 320 is transmitted to the pixel electrode 340, and a voltage value of the pixel electrode 340 is adjusted to a reference voltage required for screen display.
- control circuit 310 causes the voltages of the first control line 311 and the second control line 312 to be at a high potential at the same time.
- the power supply selection circuit 330 forms a disconnection between the pixel electrode 340 and the first signal line 321, the second signal line 322, and the third signal line 323.
- the pixel electrode 340 then obtains data provided by the source driving circuit 104, and charges the pixel electrode to a voltage required for actual screen display.
- the first polarity is a reverse polarity
- the second polarity is a positive polarity
- the first polarity is positive polarity
- the second polarity is reverse polarity
- the potentials of different polarities are connected to the control terminals of the active switch groups to control the on-off state between the signal line and the pixel electrode 340.
- the pixel electrodes 340 can be connected to voltage values of different polarities.
- the power supply selection circuit 330 in the embodiment of the present application has a simplified control step.
- the first switch 331a of the first active switch group 331 and the second switch 332b of the second active switch group 332 are P-type field effect transistors; the first active switch group The second switch 331b of 331, the first switch 332a of the second active switch group 332, and the first switch 333a and the second switch 333b of the third active switch group 333 are N-type field effect transistors.
- each switch in each active switch group (the first active switch group 331, the second active switch group 332, and the third active switch group 333) is connected to the potential of the control line, the control line is at the first potential and the second When the potentials are switched, each switch in the active switch group is also turned on or off, and the on / off control of each active switch group is realized.
- the pixel electrode 340 can be connected to voltage values with different voltage polarities.
- the pixel electrode 340 stores a negative grayscale value, and when the frame is switched to a positive high grayscale value, the source is obtained at the pixel electrode 340
- the control circuit 310 sets the voltage of the first control line 311 at a low potential and the voltage of the second control line 312 at a high potential
- the power supply selection circuit 330 causes The first signal line 321 and the pixel electrode 340 form a via.
- the positive polarity voltage provided by the power driving circuit 320 is transmitted to the pixel electrode 340, and the negative polarity voltage in the pixel electrode 340 is gradually neutralized, and then converted to the highest voltage required for the positive display of the screen.
- control circuit 310 causes the voltages of the first control line 311 and the second control line 312 to be at a low potential at the same time.
- the power supply selection circuit 330 forms a disconnection between the pixel electrode 340 and the first signal line 321, the second signal line 322, and the third signal line 323.
- the pixel electrode 340 then obtains data provided by the source driving circuit 104, and charges the pixel electrode to a voltage required for actual screen display.
- the pixel electrode 340 stores a positive grayscale value, and when the frame is switched to a negative high grayscale value, the source is obtained at the pixel electrode 340
- the control circuit 310 causes the voltage of the first control line 311 to be at a high potential and the voltage of the second control line 312 to be at a low potential.
- the second signal line 322 and the pixel electrode 340 form a via.
- the negative polarity voltage provided by the power driving circuit 320 is transmitted to the pixel electrode 340, and the positive polarity voltage in the pixel electrode 340 is gradually neutralized, and then converted to the highest voltage required for the negative polarity display of the screen.
- control circuit 310 causes the voltages of the first control line 311 and the second control line 312 to be at a low potential at the same time.
- the power supply selection circuit 330 forms a disconnection between the pixel electrode 340 and the first signal line 321, the second signal line 322, and the third signal line 323.
- the pixel electrode 340 then obtains data provided by the source driving circuit 104, and charges the pixel electrode to a voltage required for actual screen display.
- the control circuit 310 causes the voltages of the first control line 311 and the second control line 312 to be at a high potential, and the power selection circuit 330 causes the third signal line 323 and the pixel electrode 340 to form a path.
- a reference voltage required for screen display provided by the power supply driving circuit 320 is transmitted to the pixel electrode 340, and a voltage value of the pixel electrode 340 is adjusted to a reference voltage required for screen display.
- control circuit 310 causes the voltages of the first control line 311 and the second control line 312 to be at a low potential at the same time.
- the power supply selection circuit 330 forms a disconnection between the pixel electrode 340 and the first signal line 321, the second signal line 322, and the third signal line 323.
- the pixel electrode 340 then obtains data provided by the source driving circuit 104, and charges the pixel electrode to a voltage required for actual screen display.
- FIG. 2c is a schematic diagram of a circuit structure of a driving device according to an embodiment of the present application. Please cooperate with FIG. 1a to FIG. 2b at the same time to facilitate understanding.
- the first switch 331a of the first active switch group 331 and the second switch 332b of the second active switch group 332 are N-type field effect transistors;
- the first The second switch 331b of the active switch group 331, the first switch 332a of the second active switch group 332, the first switch 333a and the second switch 333b of the third active switch group 333 are P-type field effect transistors.
- the control terminals of the first switch 331a of the first active switch group 331 and the second switch 332b of the second active switch group 332 have a first polarity
- the second switch 331b of the first active switch group 331 Control terminals of the first switch 332a of the second active switch group 332, the first switches 333a, and the second switch 333b of the third active switch group 333 have a second polarity.
- the first polarity is positive, and the second polarity is reverse.
- FIG. 3 shows a schematic structural diagram of another display panel provided by an embodiment of the present application.
- the driving device in FIG. 3 further includes a communication circuit 301. .
- the communication circuit 301 is connected between the control circuit 310 and the mobile terminal 400.
- the communication circuit 301 generates a level selection signal according to a user's operation instruction.
- the mobile terminal 400 is a mobile phone or a tablet computer.
- the operation instruction includes the operation information of the user.
- the mobile terminal 400 converts the operation information into an operation instruction, and the communication circuit 301 has a signal conversion function.
- the level selection signal is output to the control circuit 310 through the communication circuit 301, and the level selection signal can regulate the potential switching control function of the control circuit 310 so that the control line can be switched between the first potential and the second potential;
- the driving device in the embodiment of the present application realizes communication interconnection with the external mobile terminal 400 through the communication circuit 301.
- the control circuit 310 and the mobile terminal 400 perform two-way data transmission.
- the user can change the potential switching of the control line through the mobile terminal 400.
- the pixel electrode 340 can be switched to the target voltage value within the charging time, which improves the controllability of the driving device in the embodiment of the present application, and brings a better user experience to the user.
- the communication circuit 301 is a wired communication circuit or a wireless communication circuit.
- the wireless communication circuit is one or more of a WIFI circuit, a Bluetooth circuit, and a 4G circuit.
- the wired communication circuit is a serial communication circuit
- the serial communication circuit includes an RS232 and / or RS485 interface.
- the communication circuit 301 in the embodiment of the present application is a WIFI circuit
- a technician can wirelessly control the potential switching process of the control circuit 310 through the mobile terminal 400, and the pixel electrode 340 can achieve voltage polarity under real-time control of the technician
- the switching of the pixel electrode can stably rise to the target voltage within the charging time, which improves the use experience of the technician and the picture quality of the display panel is better.
- the mobile terminal 400 performs remote wireless / wired communication with the control circuit 310 through the communication circuit 301.
- the user can directly change the working state of the control circuit 310 through the mobile terminal 400, so that the pixel electrode 340 can follow the user's operation instruction.
- the display panel can display pictures of different gray levels, and bring great convenience to the user's operation, and the user's visual experience Better.
- FIG. 4 shows a schematic structural diagram of an array substrate 500 according to an embodiment of the present application.
- the array substrate 500 includes: a plurality of control lines G, a plurality of signal lines D, pixel electrodes 340, and a driving device.
- the plurality of control lines G are distributed in an array in a horizontal direction.
- a plurality of signal lines D are arrayed in a vertical direction.
- the pixel electrode 340 is defined by the intersection of the control line G and the signal line D.
- the signal line D has different voltage values, and the control line G has different potentials. Furthermore, the signal line D can change the voltage value of the pixel electrode 304 to realize the normal image / video display function of the display panel.
- the driving device is disposed on the display panel.
- the driving device includes a control circuit 310, a power driving circuit 320, and a power selecting circuit 330.
- control circuit 310 is connected to a plurality of control lines G, and the control circuit 310 controls each control line G to switch between a first potential and a second potential.
- the power driving circuit 320 is connected to a plurality of signal lines D, and the plurality of signal lines D have different voltage values.
- a power selection circuit 330 a control terminal of the power selection circuit 330 is electrically coupled to the plurality of control lines G, and an input end of the power selection circuit 330 is electrically coupled to the plurality of signal lines D, the power supply An output terminal of the selection circuit 330 is electrically coupled to the pixel electrode 340 of the display panel.
- the power source selection circuit 330 causes one of the signal lines D to form a path with the pixel electrode 340 according to the potential switching results of the plurality of control lines G, and adjusts the voltage value of the pixel electrode 340 to a desired value.
- the voltage value of one of the plurality of signal lines D is described.
- the driving device is used to adjust the potential switching of the control line G, and the signal line D can transmit different voltage values to the pixel electrode 340 to ensure the charging efficiency of the pixel electrode 340.
- the pixel in the embodiment of the present application The electrode 340 can be switched to the target voltage during the charging time, the pixel electrode 340 can achieve the corresponding polarity switching, and the array substrate 500 has high compatibility and universality, and the array substrate 500 can always be in a normal and stable operation. Status, the display panel can display dynamic, variable and complete pictures.
- the driving device further includes a communication circuit, the communication circuit is connected between the control circuit 310 and the mobile terminal, and the communication circuit generates a level selection signal according to a user's operation instruction;
- the communication circuit outputs the level selection signal to the control circuit 310 to change the potential state of the control line G to realize the voltage polarity switching process of the pixel electrode 340 of the display panel; therefore, the user can control the voltage polarity of the pixel electrode 340 through the mobile terminal.
- the switching operation improves the controllability of the array substrate 500.
- the communication circuit is a wired communication circuit or a wireless communication circuit.
- the array substrate 500 includes at least two control lines G and at least three signal lines D.
- the power selection circuit 330 includes at least three active switch groups, each of which is connected to each signal line D, and the active switch group is turned on or off according to a potential switching result of the control line G When the active switch group is turned on, the corresponding signal line D and the pixel electrode 340 form a path.
- each of the active switch groups includes a first switch and a second switch; in the same active switch group, a control end of the first switch is connected to the control line G, and The control end of the second switch is connected to the control line G, and the control line G connected to the control end of the first switch is different from the control line G connected to the control end of the second switch, and the first A first terminal of the switch is connected to the signal line D, a second terminal of the first switch is connected to the first terminal of the second switch, and a second terminal of the second switch is electrically coupled to the pixel electrode.
- the array substrate 500 in the embodiment of the present application corresponds to the driving device in FIGS. 2 a to 3. Therefore, for specific implementations of the array substrate 500 in the embodiment of the present application, reference may be made to the embodiments in FIGS. 2 a to 3. , Will not repeat them here.
- the array substrate 500 can guarantee the charging rate of the pixel electrode 340.
- the voltage value is output to the pixel electrode 340 of the display panel through a signal line, and the voltage polarity of the pixel electrode 340 is changed by the corresponding voltage value to realize the pixel electrode.
- the pixel electrode 340 can be switched to the target voltage during the charging time, and the pixel electrode 340 in the array substrate 500 can realize charge sharing, thereby ensuring the picture quality in the display panel.
- the display device 200 includes: a first substrate and a second substrate opposite to each other; a liquid crystal layer is disposed between the first substrate and the second substrate; A device disposed on one of the first substrate and the second substrate, the driving device includes a control circuit 310 connected to a plurality of control lines 310a, and the control circuit 310 controls each control line 310a at a first potential Switch to the second potential; the power supply driving circuit 320 is connected to a plurality of signal lines 320a, the plurality of signal lines 320a have different voltage values; the power selection circuit 330, and the control terminal of the power selection circuit 330 is electrically Coupled to the plurality of control lines 310a, the input end of the power selection circuit 330 is electrically coupled to the plurality of signal lines 320a, and the output end of the power selection circuit 330 is electrically coupled to the pixel electrode 340 of the display panel Wherein, the power source selection circuit 330 causes one of the plurality of control lines 310a, the input end of the power selection circuit 330 is electrical
- the display device 200 can realize the charge sharing of the pixel electrode 340 through the power supply selection circuit 33, switch the voltage polarity of the pixel electrode 340 by the voltage value of the signal line 320 a, and improve
- the pixel electrode 340 can accurately switch the target voltage within the charging time, the pixel electrode 340 is accurately charged to the voltage required for the actual display of the screen in the display device 200, and the internal circuit of the display device 200
- the structure is simple, which improves the display effect of the display device 200, and reduces the pixel driving cost and application cost of the display device 200.
- the user's visual experience is excellent; the charging rate of the display device in the exemplary technology due to the pixel electrode is effectively solved Insufficient to accurately implement the polarity switching function, and the screen display of the display device is abnormal.
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Abstract
一种驱动装置、阵列基板(500)及显示装置(200);其中,驱动装置包括:控制电路(310)、电源驱动电路(320)以及电源选择电路(330);控制电路(310)控制每一控制线(310a、G)在第一电位和第二电位之间切换;电源驱动电路(320)连接多条信号线(320a、D),多条信号线(320a、D)具有相异的电压值;电源选择电路(330)依据多条控制线(310a、G)的电位切换结果,使多条信号线(310a、G)之一与像素电极(340)形成通路,使像素电极(340)的电压值调节至信号线(310a、G)之一的电压值。
Description
本申请要求于2018年9月11日提交中国专利局,申请号为201811058530.6,发明名称为“驱动装置及其显示装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本申请涉及显示技术领域,尤其涉及一种驱动装置、阵列基板及显示装置。
在液晶显示器(Thin Film Transistor Liquid Crystal Display,TFT-LCD)的面板中,由于显示面板中一条扫描线开启的时间并不长,所以充电时间相对不长,若是将像素电极上的电压从正极性切换为负极性,或者将像素电极上的电压从负极性切换为正极性,跨压较大,像素电极上的电压很难在有限的充能时间内达到需求的电压值,液晶分子转动不足,造成较不好的液晶动态电容效应。
申请内容
本申请一目的在于提供一种驱动装置、阵列基板及显示装置,包括但不限于解决:显示面板中的像素电极由于充电时间不足,在进行电压极性切换时,示例性技术在充电时间内无法将像素电极切换至目标电压,显示面板的画面异常的不足之处。
本申请实施例采用的技术方案是:一种驱动装置,设置于显示面板,包括:
控制电路,连接多条控制线,所述控制电路控制每一控制线在第一电位与第二电位之间切换;
电源驱动电路,连接多条信号线,所述多条信号线具有相异的电压值;以及
电源选择电路,所述电源选择电路的控制端电性耦接所述多条控制线,所述电源选择电路的输入端电性耦接所述多条信号线,所述电源选择电路的输出端电性耦接所述显示面板的像素电极;
其中,所述电源选择电路依据所述多条控制线的电位切换结果,使所述多条信号线之一与所述像素电极形成通路,使所述像素电极的电压值调节至所述多条信号线之一的电压值。
在一个实施例中,所述驱动装置还包括:
通讯电路,所述通讯电路连接在所述控制电路与移动终端之间,所述通讯电路根据用户的操作指令生成电平选择信号。
在一个实施例中,所述通讯电路为有线通讯电路或者无线通讯电路。
在一个实施例中,所述多条控制线包括第一控制线与第二控制线;
所述多条信号线包括第一信号线、第二信号线与第三信号线;
所述第一控制线为第一电位,所述第二控制线为第二电位,所述电源选择电路使所述第一信号线与所述像素电极形成通路;
所述第一控制线为第二电位,所述第二控制线为第一电位,所述电源选择电路使所述第二信号线与所述像素电极形成通路;
所述第一控制线为第二电位,所述第二控制线为第二电位,所述电源选择电路使所述第三信号线与所述像素电极形成通路;
所述第一控制线为第一电位,所述第二控制线为第一电位,所述电源选择电路使所述像素电极与所述第一信号线、所述第二信号线以及所述第三信号线之间形成断路。
在一个实施例中,所述第一电位和所述第二电位相位交错。
在一个实施例中,所述第一电位为低电位,所述第二电位为高电位,或者所述第一电位为高电位,所述第二电位为低电位。
在一个实施例中,所述第一信号线传输正极性电压信号,所述第二信号线传输负极性电压信号,所述第三信号线传输基准电压信号。
在一个实施例中,在所述第一信号线与所述像素电极导通时,所述像素电极为正极性电压;
在所述第二信号线与所述像素电极导通时,所述像素电极为负极性电压;
在所述第三信号线与所述像素电极导通时,所述像素电极为基准电压。
在一个实施例中,在所述像素电极为正极性电压,所述显示面板为高灰阶;
在所述像素电极为负极性电压,所述显示面板为低灰阶。
在一个实施例中,所述多条控制线包括第一控制线与第二控制线;
其中,所述电源选择电路包括第一主动开关组,第二主动开关组与第三主动开关组;
所述主动开关组分别包括第一开关与第二开关,所述第一开关的控制端连接所述第一控制线,所述第二开关的控制端连接所述第二控制线,所述多条信号线分别连接所述第一开关的第一端,所述第一开关的第二端连接相同主动开关组的第二开关的第一端,所述第二开关的第二端电性耦接所述像素电极;
所述第一主动开关组的第一开关、所述第二主动开关组的第二开关的控制端为第一极性,所述第一主动开关组的第二开关、所述第二主动开关组的第一开关、所述第三主动开关组的第一开关与第二开关的控制端为第二极性。
在一个实施例中,在所述第一控制线为第一电位,所述第二控制线为第二电位,所述 第一主动开关组导通;
在所述第一控制线为第二电位,所述第一控制线为第一电位,所述第二主动开关组导通;
在所述第一控制线为第一电位,所述第二控制线为第一电位,所述第三主动开关组导通。
在一个实施例中,在所述第一主动开关组导通时,所述像素电极接入正极性电压值;
在所述第二主动开关组导通时,所述像素电极接入负极性电压值;
在所述第三主动开关组导通时,所述像素电极接入基准电压值。
在一个实施例中,所述第一极性为反极性,所述第二极性为正极性;或所述第一极性为正极性,所述第二极性为反极性。
在一个实施例中,所述第一主动开关组的第一开关、所述第二主动开关组的第二开关为P型场效应晶体管;所述第一主动开关组的第二开关、所述第二主动开关组的第一开关、所述第三主动开关组的第一开关与第二开关为N型场效应晶体管。
在一个实施例中,所述第一主动开关组的第一开关、所述第二主动开关组的第二开关为N型场效应晶体管;所述第一主动开关组的第二开关、所述第二主动开关组的第一开关、所述第三主动开关组的第一开关与第二开关为P型场效应晶体管。
本申请的另一目的在于提供一种阵列基板,包括:
多条控制线,在水平方向阵列分布;
多条信号线,在垂直方向阵列分布;
像素电极,由所述控制线和信号线交叉限定;以及
驱动装置,设置于显示面板;
其中,所述驱动装置包括:
控制电路,连接多条控制线,所述控制电路控制每一控制线在第一电位与第二电位之间切换;
电源驱动电路,连接多条信号线,所述多条信号线具有相异的电压值;以及
电源选择电路,所述电源选择电路的控制端电性耦接所述多条控制线,所述电源选择电路的输入端电性耦接所述多条信号线,所述电源选择电路的输出端电性耦接显示面板的像素电极;
其中,所述电源选择电路依据所述多条控制线的电位切换结果,使所述多条信号线之一与所述像素电极形成通路,使所述像素电极的电压值调节至所述多条信号线之一的电压值。
在一个实施例中,所述驱动装置还包括:
通讯电路,所述通讯电路连接在所述控制电路与移动终端之间,所述通讯电路根据用户的操作指令生成电平选择信号。
在一个实施例中,所述阵列基板包括至少两条控制线和至少三条信号线;
其中,所述电源选择电路包括至少三个主动开关组,每一个主动开关组与每一条信号线一对应连接,所述主动开关组根据所述控制线的电位切换结果导通或者关断;
当所述主动开关组导通时,相应的信号线与所述像素电极形成通路。
在一个实施例中,每一个所述主动开关组包括第一开关和第二开关;
在同一个主动开关组中,所述第一开关的控制端接所述控制线,所述第二开关的控制端接所述控制线,并且所述第一开关的控制端所连接的控制线与所述第二开关的控制端所连接的控制线互异,所述第一开关的第一端接所述信号线,所述第一开关的第二端接所述第二开关的第一端,所述第二开关的第二端电性耦接所述像素电极。
本申请的再一目的在于提供一种显示装置,包括:
第一基板;
第二基板,与所述第一基板相对设置;
液晶层,设置于所述第一基板与所述第二基板之间;以及
驱动装置,设置于所述第一基板与所述第二基板之一,所述驱动装置包括:
控制电路,连接多条控制线,所述控制电路控制每一控制线在第一电位与第二电位之间切换;
电源驱动电路,连接多条信号线,所述多条信号线具有相异的电压值;以及
电源选择电路,所述电源选择电路的控制端电性耦接所述多条控制线,所述电源选择电路的输入端电性耦接所述多条信号线,所述电源选择电路的输出端电性耦接显示面板的像素电极;
其中,所述电源选择电路依据所述多条控制线的电位切换结果,使所述多条信号线之一与所述像素电极形成通路,使所述像素电极的电压值调节至所述多条信号线之一的电压值。
本申请实施例提供的驱动装置通过电源选择电路能够使像素电极在进行电压极性切换的过程实现电荷共享,显示面板的像素电极在充电时间内能够上升至目标电压,保障了显示面板的充电率,提高了显示面板的画面质量。
为了更清楚地说明本发明实施例中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图 获得其它的附图。
图1a是本申请实施例提供的范例性的显示装置的架构示意图;
图1b是本申请实施例提供的范例性的像素电路配置示意图;
图2a是本申请实施例提供的显示面板的架构示意图;
图2b是本申请实施例提供的驱动装置的电路架构示意图;
图2c是本申请实施例提供的驱动装置的另一种电路架构示意图;
图3是本申请实施例提供的另一种显示面板的架构示意图;
图4是本申请实施例提供的阵列基板的架构示意图。
为了使本发明的目的、技术方案及优点更加清楚明白,以下结合附图及实施例,对本发明进行进一步详细说明。应当理解,此处所描述的具体实施例仅用以解释本发明,并不用于限定本发明。
需说明的是,当电路被称为“固定于”或“设置于”另一个电路,它可以直接在另一个电路上或者间接在该另一个电路上。当一个电路被称为是“连接于”另一个电路,它可以是直接或者间接连接至该另一个电路上。术语“上”、“下”、“左”、“右”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本专利的限制,对于本领域的普通技术人员而言,可以根据具体情况理解上述术语的具体含义。术语“第一”、“第二”仅用于便于描述目的,而不能理解为指示或暗示相对重要性或者隐含指明技术特征的数量。“多个”的含义是两个或两个以上,除非另有明确具体的限定。
为了说明本申请所述的技术方案,以下结合具体附图及实施例进行详细说明。
本申请实施例提供一种显示装置具有显示面板,其包括第一基板及第二基板,第一基板及第二基板可例如为主动阵列开关(Thin Film Transistor,TFT)基板、彩色滤光层(Color Filter,CF)基板。然不限于此,在一些实施例中,本申请的主动阵列开关及彩色滤光层亦可形成于同一基板上。
在一些实施例中,本申请的所述显示面板可例如为液晶显示面板,然不限于此,其亦可为OLED(Organic Electroluminescence Display,有机电激光显示)显示面板、QLED(Quantum Dot Light Emitting Diodes,量子点发光二极管)显示面板,等离子体显示面板,曲面型显示面板或其他类型显示面板。
图1a为范例性的显示装置的架构示意图。请参照图1a,一种显示装置200,包括: 控制板100,所述控制板100包括时序电路(Timing Controller,TCON)101;印刷电路板103,与所述控制板100之间通过柔性扁平电缆(Flexible Flat Cable,FFC)102相连接;源极驱动电路104与栅极驱动电路105配置于布线区109,分别与显示区106内的源极线104a及栅极线105a连接。在一些实施例中,栅极驱动电路105及源极驱动电路104包括但不限制为覆晶薄膜形式。
显示装置200的驱动方式包括:系统主板提供颜色(例如:R/G/B)压缩信号、控制信号及电源传输至控制板100。控制板100上的时序控制器(Timing Controller,TCON)101与处理此等信号后,连同被驱动电路处理的电源,通过柔性扁平电缆(Flexible Flat Cable,FFC)102,一并传输至印刷电路板103的栅极驱动电路105及源极驱动电路104,栅极驱动电路105及源极驱动电路104将必要性的数据与电源传输于显示区106,从而使得显示装置200获得呈现画面需求的电源、信号。
图1b为范例性的像素电路配置示意图。请配合图1a以利于了解。栅极驱动电路105是逐行提供扫描信号给栅极线105a,每一扫描周期提供扫描信号给一行栅极线105a。显示面板的源极线104a会被逐行打开,源极驱动电路104通过源极线104a提供数据至像素电路P。像素电路P包括存储电容(Cst)与液晶电容(Clc),存储电容(Cst)是由像素电极与阵列共享线路(AA Com)形成,液晶电容(Clc)则是形成在彩膜共同电极(CF com)与像素电极之间。
在示例性技术中,显示面板中的一条信号线开启的时间并不长,所以充电时间相对不长,若将像素电极上的电压从正极性切换为负极性,跨压较大,像素电极上的电压很难在有限的充电时间内达到需求的电压值。进一步还会造成液晶分子转动不足,造成较不好的液晶动态电容效应。
图2a为本申请一实施例的显示面板的架构示意图。请同时配合图1a至图1b以利于理解。请参阅图2a,本申请实施例提供的驱动装置包括:控制电路310,连接多条控制线310a,所述控制电路310控制所述控制线310a在第一电位与第二电位之间切换;电源驱动电路320,连接多条信号线320a,所述多条信号线320a具有相异的电压值;电源选择电路330,所述电源选择电路330的控制端电性耦接所述多条控制线310a,所述电源选择电路330的输入端电性耦接所述多条信号线320a,所述电源选择电路330的输出端电性耦接所述显示面板的像素电极340;其中,所述电源选择电路330依据所述多条控制线310a的电位切换结果,使所述多条信号线320a之一与所述像素电极340形成通路,使所述像素电极340的电压值调节至所述多条信号线320a之一的电压值。
在本申请实施例中,通过控制电路310能够控制像素电极340的电压极性切换过程,操作简便;并且电源选择电路330能够根据控制电路310的电位切换结果对像素电极340 进行充电;进而使像素电极340的电压值能够跳转至信号线320a的电压值,像素电极340能够在充电时间内切换至目标电压,像素电极340根据信号线320a的电压值实现了平稳的充电过程,提高了显示面板中像素电极340的充电率;通过电源选择电路330使像素电极实现电荷共享,提高了显示面板中图像/视频的正常显示,给用户带来良好的视觉体验;有效地解决了示例性技术中显示面板的像素电极由于充电率不足在电压极性切换的过程中,像素电极无法切换至目标电压,显示面板中的各个像素电极由于缺乏稳定的充电电荷导致画面显示异常,用户视觉体验不佳的问题。
作为一种可选的实施方式,所述控制电路310为栅极驱动电路105或时序控制器101。
作为一种可选的实施方式,图2b为本申请实施例提供的驱动装置的电路架构示意图。请同时配合图1a至图2a以利于理解。请参阅图2b,在本申请实施例中,所述多条控制线310a包括第一控制线311与第二控制线312;所述多条信号线320a包括第一信号线321、第二信号线322与第三信号线323;所述第一控制线311为第一电位,所述第二控制线312为第二电位,所述电源选择电路330使所述第一信号线321与所述像素电极340形成通路;所述第一控制线311为第二电位,所述第二控制线312为第一电位,所述电源选择电路330使所述第二信号线322与所述像素电极形成通路;所述第一控制线311为第二电位,所述第二控制线312为第二电位,所述电源选择电路330使所述第三信号线323与所述像素电极340形成通路;所述第一控制线311为第一电位,所述第二控制线312为第一电位,所述电源选择电路330使所述像素电极340与所述第一信号线321、所述第二信号线322及所述第三信号线323之间形成断路。
本申请实施例中通过两条控制线(第一控制线311与第二控制线312)来控制像素电极340的充电过程,由于每条控制线上存在相应的电位,进而通过控制线上的电位以操控信号线与像素电极340之间的导通或者关断状态,像素电极340的充电状态具有极佳的可控性;当相应信号线与像素电极340形成通路,信号线的电压值传输至像素电极340,以实现像素电极340的电压切换过程,像素电极340根据信号线的电压值精确地切换至目标电压,保障了像素电极340的正常、稳定工作过程。
作为一种可选的实施方式,在上述驱动装置的电路架构中,第一电位和第二电位相位交错;因此第一控制线311与第二控制线312上存在相应的电压,通过控制线上的电位能够改变信号线与像素电极340的充电过程,当像素电极340接入不同的电压值时,则像素电极340跳转至相应的电压极性,像素电极340的极性转换具有极高的响应速度。
作为一种可选的实施方式,所述第一电位为低电位,所述第二电位为高电位。
作为一种可选的实施方式,所述第一电位为高电位,所述第二电位为低电位;进而本 申请实施例中像素电极340具有极高的控制兼容性,适应范围极广。
作为一种可选的实施方式,所述第一信号线321传输正极性电压信号,所述第二信号线322传输负极性电压信号,所述第三信号线323传输基准电压信号。
作为一种可选的实施方式,在所述第一信号线321与所述像素电极340导通时,所述像素电极340为正极性电压。
在所述第二信号线322与所述像素电极340导通时,所述像素电极340为负极性电压。
在第三信号线323与所述像素电极340导通时,所述像素电极340为基准电压。
示例性的,当第一信号线321与所述像素电极340导通,第一信号线321将正极性电压信号输出至像素电极340,通过正极性电压信号拉升像素电极340的电压,以使像素电极340切换至正极性电压;当第二信号线322与所述像素电极340导通,第二信号线322将负极性电压信号输出至像素电极340,通过负极性电压信号中和像素电极340中的电荷,以使像素电极340的电压下降,像素电极340切换至负极性电压;当第三信号线323与所述像素电极340导通,第三信号线323将基准电压信号输出至像素电极340,通过基准电压信号将像素电极340的电压切换基准电压;因此本申请实施例通过各条信号线与像素电极340之间的通断状态,可实现像素电极340的电压极性切换过程,控制的灵活性极高。
示例性的,在本申请实施例中,高于所述基准电压的电压值为正极性电压,低于所述基准电压的电压值为负极性电压。
作为一种可选的实施方式,在所述像素电极340为正极性电压,显示面板为高灰阶。
在所述像素电极340为负极性电压,所述显示面板为低灰阶。
本申请实施例中显示面板的画面色阶与像素电极340的电压极性具有一一对应的关系,当像素电极340进行电压极性切换时,显示面板就会呈现出不同的色彩,画面实现了不同颜色之间的组合,给用户带来良好的视觉体验。
作为一种可选的实施方式,每一帧画面像素的显示规格为8比特(bit),最高灰阶值为255,最低灰阶值为0,灰阶值128以上即视为高灰阶数值,灰阶值不足128者视为低灰阶数值。
作为一种可选的实施方式,所述控制电路310配置于所述控制板100,其可为或包含于时序电路101中;所述电源驱动电路320则配置于印刷电路板103,通过所述第一信号线321传输画面正极性显示所需最高电压,通过所述第二信号线322传输画面负极性显示所需最高电压,及通过所述第三信号线323为画面显示所需的基准电压。
作为一种可选的实施方式,参照图2a,所述多条控制线包括第一控制线311与第二控制线312;所述电源选择电路330包括第一主动开关组331,第二主动开关组332与第三主 动开关组333;所述每一个主动开关组分别包括第一开关与第二开关,所述第一开关的控制端连接所述第一控制线311,所述第二开关的控制端连接所述第二控制线312,所述多条信号线分别连接所述第一开关的第一端,所述第一开关的第二端连接相同主动开关组的第二开关的第一端,所述第二开关的第二端电性耦接所述像素电极340;其中,所述第一主动开关组331的第一开关331a、所述第二主动开关组332的第二开关332b的控制端为第一极性,所述第一主动开关组331的第二开关331b、所述第二主动开关组332的第一开关332a、所述第三主动开关组333的第一开关333a与第二开关333b的控制端为第二极性。
示例性的,在第一主动开关组331中,第一开关331a的控制端连接第一控制线311,第二开关331b的控制端连接第二控制线312,所述多条信号线分别连接第一开关331a的第一端,第一开关331a的第二端连接第二开关331b的第一端,第二开关331b的第二端电性耦接所述像素电极340,当第一主动开关组导通331时,信号线能够将相应的电压追输出至像素电极340,以实现电压极性的切换;依次类推,本申请实施例中通过三个主动开关组(包括:第一主动开关组331,第二主动开关组332与第三主动开关组333)的通断操作,像素电极340能够接入不同电压极性的电压值,提高了像素电极340的电压极性切换的稳定性和可操控性。
作为一种可选的实施方式,在所述第一控制线311为第一电位,所述第二控制线312为第二电位,所述第一主动开关组331导通。
在所述第一控制线311为第二电位,所述第一控制线312为第一电位,所述第二主动开关组332导通。
在所述第一控制线311为第一电位,所述第二控制线312为第一电位,所述第三主动开关组333导通。
可选的,在所述第一控制线311为第二电位,所述第二控制线312为第二电位,所述第一主动开关组331、所述第二主动开关组332以及所述第三主动开关组333这三者都断开。
在本申请实施例中,可选的,所述第一电位为高电位,所述第二电位为低电位;或者所述第一电位为低电位,所述第二电位为高电位;通过第一控制线311和第二控制线312中不同的电位状态,可控制各个主动开关组的导通或者关断状态,控制相应速度较快,能够实现像素电极340电压极性的快速切换过程。
作为一种可选的实施方式,在所述第一主动开关组331导通时,所述像素电极340接入正极性电压值。
在所述第二主动开关组332导通时,所述像素电极340接入负极性电压值。
在所述第三主动开关组333导通时,所述像素电极340接入基准电压值。
在本申请实施例中,通过正极性电压值能够将像素电极340切换至正极性电压,通过负极性电压值能够将像素电极340切换至负极性电压,通过基准电压值能够将像素电极340切换至基准电压;因此通过不同主动开关组与像素电极340之间通断状态,即可使像素电极340切换至相应电压极性;通过三个主动开关组(第一主动开关组331、第二主动开关组332以及第三主动开关组333)实现了像素电极340的电荷共享功能,提高了像素电极340的充电率,像素电极30在充电时间内能够接入充足的电荷,显示面板能够显示更加完整、清晰的画面。
作为一种可选的实施方式,前一帧画面时,所述像素电极340储存负极性灰阶数值,且需要在本帧画面切换至正极性高灰阶数值时,在所述像素电极340取得所述源极驱动电路104提供的数据前,所述控制电路310使所述第一控制线311的电压处于高电位,使所述第二控制线312的电压处于低电位,所述电源选择电路330使所述第一信号线321与所述像素电极340形成通路。所述电源驱动电路320提供的正极性电压会被传输至所述像素电极340,所述像素电极340中的负极性电压会被逐渐中和,之后转换至画面正极性显示所需最高电压。接着,所述控制电路310使所述第一控制线311与所述第二控制线312的电压同时处于高电位。所述电源选择电路330使所述像素电极340与所述第一信号线321、所述第二信号线322及所述第三信号线323之间形成断路。所述像素电极340再取得所述源极驱动电路104提供的数据,将所述像素电极充电至实际画面显示所需求的电压。
作为一种可选的实施方式,前一帧画面时,所述像素电极340储存正极性灰阶数值,且需要在本帧画面切换至负极性高灰阶数值时,在所述像素电极340取得所述源极驱动电路104提供的数据前,所述控制电路310使所述第一控制线311的电压处于低电位,使所述第二控制线312的电压处于高电位,所述电源选择电路330使所述第二信号线322与所述像素电极340形成通路。所述电源驱动电路320提供的负极性电压会被传输至所述像素电极340,所述像素电极340中的正极性电压会被逐渐中和,之后转换至画面负极性显示所需最高电压。接着,所述控制电路310使所述第一控制线311与所述第二控制线312的电压同时处于高电位。所述电源选择电路330使所述像素电极340与所述第一信号线321、所述第二信号线322及所述第三信号线323之间形成断路。所述像素电极340再取得所述源极驱动电路104提供的数据,将所述像素电极充电至实际画面显示所需求的电压。
作为一种可选的实施方式,所述像素电极340需要在本帧画面切换至正极性或负极性的低灰阶数值时,在所述像素电极340取得所述源极驱动电路104提供的数据前,所述控制电路310使所述第一控制线311与所述第二控制线312的电压皆处于低电位,所述电源 选择电路330使所述第三信号线323与所述像素电极340形成通路。所述电源驱动电路320提供的画面显示所需的基准电压会被传输至所述像素电极340,所述像素电极340的电压值会被调整至画面显示所需的基准电压。接着,所述控制电路310使所述第一控制线311与所述第二控制线312的电压同时处于高电位。所述电源选择电路330使所述像素电极340与所述第一信号线321、所述第二信号线322及所述第三信号线323之间形成断路。所述像素电极340再取得所述源极驱动电路104提供的数据,将所述像素电极充电至实际画面显示所需求的电压。
作为一种可选的实施方式,所述第一极性为反极性,所述第二极性为正极性。
作为一种可选的实施方式,所述第一极性为正极性,所述第二极性为反极性。
本申请实施例中,通过各个主动开关组的控制端接入不同极性的电位,可控制信号线与像素电极340之间的通断状态,像素电极340能够接入不同极性的电压值,以实现自身极性转换;因此本申请实施例中的电源选择电路330具有较为简化的控制步骤。
作为一种可选的实施方式,所述第一主动开关组331的第一开关331a、所述第二主动开关组332的第二开关332b为P型场效应晶体管;所述第一主动开关组331的第二开关331b、所述第二主动开关组332的第一开关332a、所述第三主动开关组333的第一开关333a与第二开关333b为N型场效应晶体管。
因此,当各个主动开关组(第一主动开关组331、第二主动开关组332以及第三主动开关组333)中的各个开关接入控制线的电位时,控制线在第一电位与第二电位之间切换,则主动开关组中各个开关也会导通或者关断,实现各个主动开关组通断控制,像素电极340能够接入不同电压极性的电压值。
在一些实施例中,前一帧画面时,所述像素电极340储存负极性灰阶数值,且需要在本帧画面切换至正极性高灰阶数值时,在所述像素电极340取得所述源极驱动电路104提供的数据前,所述控制电路310使所述第一控制线311的电压处于低电位,使所述第二控制线312的电压处于高电位,所述电源选择电路330使所述第一信号线321与所述像素电极340形成通路。所述电源驱动电路320提供的正极性电压会被传输至所述像素电极340,所述像素电极340中的负极性电压会被逐渐中和,之后转换至画面正极性显示所需最高电压。接着,所述控制电路310使所述第一控制线311与所述第二控制线312的电压同时处于低电位。所述电源选择电路330使所述像素电极340与所述第一信号线321、所述第二信号线322及所述第三信号线323之间形成断路。所述像素电极340再取得所述源极驱动电路104提供的数据,将所述像素电极充电至实际画面显示所需求的电压。
在一些实施例中,前一帧画面时,所述像素电极340储存正极性灰阶数值,且需要在 本帧画面切换至负极性高灰阶数值时,在所述像素电极340取得所述源极驱动电路104提供的数据前,所述控制电路310使所述第一控制线311的电压处于高电位,使所述第二控制线312的电压处于低电位,所述电源选择电路330使所述第二信号线322与所述像素电极340形成通路。所述电源驱动电路320提供的负极性电压会被传输至所述像素电极340,所述像素电极340中的正极性电压会被逐渐中和,之后转换至画面负极性显示所需最高电压。接着,所述控制电路310使所述第一控制线311与所述第二控制线312的电压同时处于低电位。所述电源选择电路330使所述像素电极340与所述第一信号线321、所述第二信号线322及所述第三信号线323之间形成断路。所述像素电极340再取得所述源极驱动电路104提供的数据,将所述像素电极充电至实际画面显示所需求的电压。
在一些实施例中,所述像素电极340需要在本帧画面切换至正极性或负极性的低灰阶数值时,在所述像素电极340取得所述源极驱动电路104提供的数据前,所述控制电路310使所述第一控制线311与所述第二控制线312的电压皆处于高电位,所述电源选择电路330使所述第三信号线323与所述像素电极340形成通路。所述电源驱动电路320提供的画面显示所需的基准电压会被传输至所述像素电极340,所述像素电极340的电压值会被调整至画面显示所需的基准电压。接着,所述控制电路310使所述第一控制线311与所述第二控制线312的电压同时处于低电位。所述电源选择电路330使所述像素电极340与所述第一信号线321、所述第二信号线322及所述第三信号线323之间形成断路。所述像素电极340再取得所述源极驱动电路104提供的数据,将所述像素电极充电至实际画面显示所需求的电压。
图2c为本申请一实施例的驱动装置的电路架构示意图。请同时配合图1a至图2b以利于理解。请参阅图2c,在本申请实施例中,所述第一主动开关组331的第一开关331a、所述第二主动开关组332的第二开关332b为N型场效应晶体管;所述第一主动开关组331的第二开关331b、所述第二主动开关组332的第一开关332a、所述第三主动开关组333的第一开关333a与第二开关333b为P型场效应晶体管。所述第一主动开关组331的第一开关331a、所述第二主动开关组332的第二开关332b的控制端为第一极性,所述第一主动开关组331的第二开关331b、所述第二主动开关组332的第一开关332a、所述第三主动开关组333的第一开关333a与第二开关333b的控制端为第二极性。所述第一极性为正极性,所述第二极性为反极性。
作为一种可选的实施方式,图3示出了本申请实施例提供的另一种显示面板的架构示意,相比于图2a中的驱动装置,图3中的驱动装置还包括通讯电路301。
如图3所示,通讯电路301,通讯电路301连接在控制电路310与移动终端400之间,通讯电路301根据用户的操作指令生成电平选择信号。
作为一种可选的实施方式,移动终端400为手机或者平板电脑。
在本申请实施例中,操作指令包括用户的操作信息,当用户在移动终端400中输入相应的功能选族信息时,移动终端400将操作信息转换为操作指令,通讯电路301具有信号转换的功能;通过通讯电路301将电平选择信号输出至控制电路310,该电平选择信号能够调控控制电路310的电位切换控制功能,以使控制线能够在第一电位与第二电位之间切换;因此本申请实施例中的驱动装置通过通讯电路301与外界的移动终端400实现了通信互联,控制电路310与移动终端400之间进行数据的双向传递,用户可通过移动终端400改变控制线的电位切换情况,像素电极340在充电时间内能够切换至目标电压值,提高了本申请实施例中驱动装置的可操控性,给用户带来更佳的使用体验。
作为一种可选的实施方式,所述通讯电路301为有线通讯电路或者无线通讯电路。
可选的,无线通讯电路为WIFI电路、蓝牙电路、4G电路中的一种或几种。
可选的,有线通讯电路为串口通讯电路,所述串口通讯电路包括RS232和/或RS485接口等。
示例性的,本申请实施例中的通讯电路301为WIFI电路,则技术人员可通过移动终端400无线操控控制电路310的电位切换过程,像素电极340能够在技术人员的实时控制下实现电压极性的切换,像素电极能够在充电时间内稳定地上升至目标电压,提高了技术人员的使用体验,显示面板的画面质量更佳。
在本申请实施例中,移动终端400通过通讯电路301与控制电路310进行远程无线/有线通讯,用户可通过移动终端400直接改变控制电路310的工作状态,以使像素电极340按照用户的操作指令精确地实现电位切换功能;即保障了像素电极340能够充电至显示面板所需的电压,显示面板能够呈现不同灰阶的画面,又给用户的操作带来了极大的便利,用户的视觉体验更佳。
图4示出了本申请实施例提供的阵列基板500的结构示意,如图4所示,阵列基板500包括:多条控制线G,多条信号线D、像素电极340以及驱动装置。
在本申请实施例中,多条控制线G,在水平方向上阵列分布。
多条信号线D,在垂直方向阵列分布。
像素电极340,由控制线G和信号线D交叉限定。
在本申请实施例中,信号线D存在不同的电压值,控制线G具有不同的电位,进而通过信号线D能够改变像素电极304的电压值,实现显示面板的图像/视频正常显示功能。
作为一种可选的实施方式,所述驱动装置设置于显示面板,驱动装置包括:控制电路 310、电源驱动电路320以及电源选择电路330。
在本申请实施例中,控制电路310,连接多条控制线G,所述控制电路310控制每一控制线G在第一电位与第二电位之间切换。
电源驱动电路320,连接多条信号线D,所述多条信号线D具有相异的电压值。
电源选择电路330,所述电源选择电路330的控制端电性耦接所述多条控制线G,所述电源选择电路330的输入端电性耦接所述多条信号线D,所述电源选择电路330的输出端电性耦接显示面板的像素电极340。
其中,所述电源选择电路330依据多条控制线G的电位切换结果,使所述多条信号线D之一与所述像素电极340形成通路,使所述像素电极340的电压值调节至所述多条信号线D之一的电压值。
本申请实施例通过驱动装置来调节控制线G的电位切换情况,进而信号线D能够将不同的电压值传输至像素电极340中,以保障像素电极340的充电效率;本申请实施例中的像素电极340能够在充电时间内切换至目标电压,像素电极340能够实现相应的极性切换,阵列基板500具有较高的兼容性和普适性,进而该阵列基板500始终能够处于正常、稳定的工作状态,显示面板能够显示动态、可变、完整的画面。
作为一种可选的实施方式,在所述阵列基板500中,驱动装置还包括通讯电路,通讯电路连接在控制电路310与移动终端之间,通讯电路根据用户的操作指令生成电平选择信号;通讯电路将电平选择信号输出至控制电路310,以改变控制线G的电位状态,实现显示面板的像素电极340的电压极性切换过程;因此用户可通过移动终端控制像素电极340的电压极性切换操作,提高了阵列基板500的可操控性。
可选的,所述通讯电路为有线通讯电路或者无线通讯电路。
作为一种可选的实施方式,所述阵列基板500包括至少两条控制线G和至少三条信号线D。
其中,所述电源选择电路330包括至少三个主动开关组,每一个主动开关组与每一条信号线D一对应连接,所述主动开关组根据所述控制线G的电位切换结果导通或者关断;当所述主动开关组导通时,相应的信号线D与所述像素电极340形成通路。
作为一种可选的实施方式,每一个所述主动开关组包括第一开关和第二开关;在同一个主动开关组中,所述第一开关的控制端接所述控制线G,所述第二开关的控制端接所述控制线G,并且所述第一开关的控制端所连接的控制线G与所述第二开关的控制端所连接的控制线G互异,所述第一开关的第一端接所述信号线D,所述第一开关的第二端接所述第二开关的第一端,所述第二开关的第二端电性耦接所述像素电极。
需要说明的是,本申请实施例中阵列基板500与图2a至图3中的驱动装置相对应,因 此关于本申请实施例中阵列基板500的具体实施方式可参照图2a至图3的实施例,此处将不再赘述。
本申请实施例中阵列基板500能够保障像素电极340的充电率,通过信号线将电压值输出至显示面板的像素电极340,通过相应的电压值改变像素电极340的电压极性,以实现像素电极340的快速极性切换操作,像素电极340在充电时间内能够切换至目标电压,阵列基板500中的像素电极340能够实现电荷共享,保障了显示面板中的画面质量。
本申请实施例提供一种显示装置200,参考图1a,显示装置200包括:相对设置的第一基板与第二基板;液晶层设置于所述第一基板与所述第二基板之间;驱动装置,设置于所述第一基板与所述第二基板之一,所述驱动装置包括:控制电路310,连接多条控制线310a,所述控制电路310控制每一控制线310a在第一电位与第二电位之间切换;电源驱动电路320,连接多条信号线320a,所述多条信号线320a具有相异的电压值;电源选择电路330,所述电源选择电路330的控制端电性耦接所述多条控制线310a,所述电源选择电路330的输入端电性耦接所述多条信号线320a,所述电源选择电路330的输出端电性耦接显示面板的像素电极340;其中,所述电源选择电路330依据所述多条控制线310a的电位切换结果,使所述多条信号线320a之一与所述像素电极340形成通路,使所述像素电极340的电压值调节至所述多条信号线320a之一的电压值。
参照图1a至图3的实施例,本申请实施例中显示装置200能够通过电源选择电路33实现像素电极340的电荷共享,通过信号线320a的电压值来切换像素电极340的电压极性,提高了显示面板中像素电极的充电效率,像素电极340能够在充电时间内准确地切换值目标电压,像素电极340准确地充电至显示装置200中画面实际显示所需的电压,显示装置200的内部电路结构简单,提升了显示装置200的显示效果,同时降低了显示装置200的像素驱动成本及其应用成本,用户的视觉体验极佳;有效地解决了示例性技术中显示装置由于像素电极的充电率不足而无法准确地实现极性切换功能,显示装置的画面显示异常的问题。
以上仅为本申请的可选实施例而已,并不用于限制本申请。对于本领域的技术人员来说,本申请可以有各种更改和变化。凡在本申请的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本申请的权利要求范围之内。
Claims (20)
- 一种驱动装置,设置于显示面板,包括:控制电路,连接多条控制线,所述控制电路控制每一控制线在第一电位与第二电位之间切换;电源驱动电路,连接多条信号线,所述多条信号线具有相异的电压值;以及电源选择电路,所述电源选择电路的控制端电性耦接所述多条控制线,所述电源选择电路的输入端电性耦接所述多条信号线,所述电源选择电路的输出端电性耦接所述显示面板的像素电极;其中,所述电源选择电路依据所述多条控制线的电位切换结果,使所述多条信号线之一与所述像素电极形成通路,使所述像素电极的电压值调节至所述多条信号线之一的电压值。
- 根据权利要求1所述的驱动装置,所述驱动装置还包括:通讯电路,所述通讯电路连接在所述控制电路与移动终端之间,所述通讯电路根据用户的操作指令生成电平选择信号。
- 根据权利要求1所述的驱动装置,其中,所述通讯电路为有线通讯电路或者无线通讯电路。
- 根据权利要求1所述的驱动装置,其中,所述多条控制线包括第一控制线与第二控制线;所述多条信号线包括第一信号线、第二信号线与第三信号线;所述第一控制线为第一电位,所述第二控制线为第二电位,所述电源选择电路使所述第一信号线与所述像素电极形成通路;所述第一控制线为第二电位,所述第二控制线为第一电位,所述电源选择电路使所述第二信号线与所述像素电极形成通路;所述第一控制线为第二电位,所述第二控制线为第二电位,所述电源选择电路使所述第三信号线与所述像素电极形成通路;所述第一控制线为第一电位,所述第二控制线为第一电位,所述电源选择电路使所述像素电极与所述第一信号线、所述第二信号线以及所述第三信号线之间形成断路。
- 根据权利要求4所述的驱动装置,其中,所述第一电位和所述第二电位相位交错。
- 根据权利要求5所述的驱动装置,其中,所述第一电位为低电位,所述第二电位为高电位,或者所述第一电位为高电位,所述第二电位为低电位。
- 根据权利要求4所述的驱动装置,其中,所述第一信号线传输正极性电压信号,所 述第二信号线传输负极性电压信号,所述第三信号线传输基准电压信号。
- 如权利要求7所述的驱动装置,其中,在所述第一信号线与所述像素电极导通时,所述像素电极为正极性电压;在所述第二信号线与所述像素电极导通时,所述像素电极为负极性电压;在所述第三信号线与所述像素电极导通时,所述像素电极为基准电压。
- 如权利要求8所述的驱动装置,其中,在所述像素电极为正极性电压,所述显示面板为高灰阶;在所述像素电极为负极性电压,所述显示面板为低灰阶。
- 如权利要求1所述的驱动装置,其中,所述多条控制线包括第一控制线与第二控制线;其中,所述电源选择电路包括第一主动开关组,第二主动开关组与第三主动开关组;所述主动开关组分别包括第一开关与第二开关,所述第一开关的控制端连接所述第一控制线,所述第二开关的控制端连接所述第二控制线,所述多条信号线分别连接所述第一开关的第一端,所述第一开关的第二端连接相同主动开关组的第二开关的第一端,所述第二开关的第二端电性耦接所述像素电极;所述第一主动开关组的第一开关、所述第二主动开关组的第二开关的控制端为第一极性,所述第一主动开关组的第二开关、所述第二主动开关组的第一开关、所述第三主动开关组的第一开关与第二开关的控制端为第二极性。
- 根据权利要求10所述的驱动装置,其中,在所述第一控制线为第一电位,所述第二控制线为第二电位,所述第一主动开关组导通;在所述第一控制线为第二电位,所述第一控制线为第一电位,所述第二主动开关组导通;在所述第一控制线为第一电位,所述第二控制线为第一电位,所述第三主动开关组导通。
- 根据权利要求11所述的驱动装置,其中,在所述第一主动开关组导通时,所述像素电极接入正极性电压值;在所述第二主动开关组导通时,所述像素电极接入负极性电压值;在所述第三主动开关组导通时,所述像素电极接入基准电压值。
- 根据权利要求10所述的驱动装置,其中,所述第一极性为反极性,所述第二极性为正极性;或所述第一极性为正极性,所述第二极性为反极性。
- 根据权利要求10所述的驱动装置,其中,所述第一主动开关组的第一开关、所述第二主动开关组的第二开关为P型场效应晶体管;所述第一主动开关组的第二开关、所述 第二主动开关组的第一开关、所述第三主动开关组的第一开关与第二开关为N型场效应晶体管。
- 根据权利要求10所述的驱动装置,其中,所述第一主动开关组的第一开关、所述第二主动开关组的第二开关为N型场效应晶体管;所述第一主动开关组的第二开关、所述第二主动开关组的第一开关、所述第三主动开关组的第一开关与第二开关为P型场效应晶体管。
- 一种阵列基板,包括:多条控制线,在水平方向阵列分布;多条信号线,在垂直方向阵列分布;像素电极,由所述控制线和信号线交叉限定;以及驱动装置,设置于显示面板;其中,所述驱动装置包括:控制电路,连接多条控制线,所述控制电路控制每一控制线在第一电位与第二电位之间切换;电源驱动电路,连接多条信号线,所述多条信号线具有相异的电压值;以及电源选择电路,所述电源选择电路的控制端电性耦接所述多条控制线,所述电源选择电路的输入端电性耦接所述多条信号线,所述电源选择电路的输出端电性耦接显示面板的像素电极;其中,所述电源选择电路依据所述多条控制线的电位切换结果,使所述多条信号线之一与所述像素电极形成通路,使所述像素电极的电压值调节至所述多条信号线之一的电压值。
- 根据权利要求16所述的阵列基板,其中,所述驱动装置还包括:通讯电路,所述通讯电路连接在所述控制电路与移动终端之间,所述通讯电路根据用户的操作指令生成电平选择信号。
- 根据权利要求16所述的阵列基板,所述阵列基板包括至少两条控制线和至少三条信号线;其中,所述电源选择电路包括至少三个主动开关组,每一个主动开关组与每一条信号线一对应连接,所述主动开关组根据所述控制线的电位切换结果导通或者关断;当所述主动开关组导通时,相应的信号线与所述像素电极形成通路。
- 根据权利要求18所述的阵列基板,其中,每一个所述主动开关组包括第一开关和第二开关;在同一个主动开关组中,所述第一开关的控制端接所述控制线,所述第二开关的控制 端接所述控制线,并且所述第一开关的控制端所连接的控制线与所述第二开关的控制端所连接的控制线互异,所述第一开关的第一端接所述信号线,所述第一开关的第二端接所述第二开关的第一端,所述第二开关的第二端电性耦接所述像素电极。
- 一种显示装置,包括:第一基板;第二基板,与所述第一基板相对设置;液晶层,设置于所述第一基板与所述第二基板之间;以及驱动装置,设置于所述第一基板与所述第二基板之一,所述驱动装置包括:控制电路,连接多条控制线,所述控制电路控制每一控制线在第一电位与第二电位之间切换;电源驱动电路,连接多条信号线,所述多条信号线具有相异的电压值;以及电源选择电路,所述电源选择电路的控制端电性耦接所述多条控制线,所述电源选择电路的输入端电性耦接所述多条信号线,所述电源选择电路的输出端电性耦接显示面板的像素电极;其中,所述电源选择电路依据所述多条控制线的电位切换结果,使所述多条信号线之一与所述像素电极形成通路,使所述像素电极的电压值调节至所述多条信号线之一的电压值。
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