WO2020024530A1 - Drive device, display device, and liquid crystal display - Google Patents

Drive device, display device, and liquid crystal display Download PDF

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Publication number
WO2020024530A1
WO2020024530A1 PCT/CN2018/122089 CN2018122089W WO2020024530A1 WO 2020024530 A1 WO2020024530 A1 WO 2020024530A1 CN 2018122089 W CN2018122089 W CN 2018122089W WO 2020024530 A1 WO2020024530 A1 WO 2020024530A1
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WO
WIPO (PCT)
Prior art keywords
data line
liquid crystal
thin film
pixel circuit
film transistor
Prior art date
Application number
PCT/CN2018/122089
Other languages
French (fr)
Chinese (zh)
Inventor
周满城
Original Assignee
惠科股份有限公司
重庆惠科金渝光电科技有限公司
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Publication of WO2020024530A1 publication Critical patent/WO2020024530A1/en

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Classifications

    • 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]
    • G09G3/3225—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] using an active matrix
    • 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
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix

Definitions

  • the present application relates to the technical field of display devices, and in particular, to a driving device, a display device, and a driving method.
  • Advanced displays have become an important feature of today's consumer electronics products.
  • display devices have been widely used in various electronic devices such as televisions, mobile phones, personal digital assistants (PDAs), and digital cameras.
  • PDAs personal digital assistants
  • the display panel of the display device includes a plurality of scan lines and data lines to control the charging and discharging of the pixel unit to display an image.
  • the data line When the data line is driven, its voltage polarity is reversed in accordance with the duty cycle. In the process of the data line polarity being continuously reversed, power is continuously consumed. In order to improve the efficiency of power usage, charge sharing can be used to reduce such power consumption.
  • the charge sharing time is the sustaining time of the high level of the polarity deflection signal. This sustaining time is very short, so the charge sharing effect may be insufficient. .
  • the main purpose of this application is to propose a driving device, which aims to extend the charge sharing time and make the charge sharing more sufficient.
  • the driving device proposed in this application includes:
  • a plurality of scanning lines disposed on the substrate
  • Each pixel array includes two first pixel circuits, a second pixel circuit, and a switch circuit connecting the first pixel circuit and the second pixel circuit, and the conduction of the switch circuits is controlled by a scanning line so that the first pixel circuit and the second pixel circuit Charge sharing between.
  • the driving device further includes a plurality of first data lines and a plurality of second data lines, the first data lines and the second data lines are alternately disposed on the substrate; the scan lines and the first data lines A data line and the second data line are vertically intersected.
  • the first pixel circuit or the second pixel circuit includes a storage capacitor, a liquid crystal capacitor, and a first thin film transistor; a first end of the storage capacitor is connected to a first end of the liquid crystal capacitor, and the The second end of the storage capacitor is grounded, the second end of the liquid crystal capacitor is grounded, the gate of the first thin film transistor is connected to the scan line, and the drain of the first thin film transistor is connected to the liquid crystal capacitor.
  • the source of the first thin film transistor is connected to the first data line or the second data line.
  • the switching circuit is a second thin film transistor.
  • a first end of the switching circuit is connected to a first end of a liquid crystal capacitor of a first pixel circuit
  • a second end of the switching circuit is connected to a first end of a liquid crystal capacitor of a second pixel circuit
  • the scanning line of the previous row adjacent to the scanning line connected to the first thin film transistor is connected to the controlled end of the switching circuit.
  • the first thin film transistor connected to the scan line when a scan line is at a high level, the first thin film transistor connected to the scan line is turned on, and the first data line and the second data line charge and discharge the liquid crystal capacitor and the storage capacitor; and The switch circuits connected to the scanning lines are turned on, and adjacent neighboring first pixel circuits and second pixel circuits perform charge sharing.
  • the first thin film transistor connected to the first data line is an N-channel MOS transistor
  • the first thin film transistor connected to the second data line is a P-channel MOS transistor.
  • the scan lines are scanned line by line at a preset timing.
  • the present application also proposes a display device including the driving device as described above.
  • the display device array substrate includes: a substrate; a plurality of first data lines and a plurality of second data lines are alternately disposed on the substrate in parallel; a plurality of scanning lines are disposed on the substrate, and the first A data line and the second data line are staggered; a plurality of pixel units, an array is disposed on the substrate; a switch circuit is also provided between two adjacent pixel units in the same row, and the conduction of the switch circuit is controlled by scanning lines, so that Charge sharing is performed between the pixel units.
  • This application proposes a driving method for a driving device, which method includes:
  • the switch circuit When a high level is detected on the scanning line, the switch circuit is controlled to be turned on, so that the adjacent first pixel circuit and the second pixel circuit perform charge sharing.
  • a switching circuit is provided between the adjacent first pixel circuit and the second pixel circuit, and the conduction of the switching circuit is controlled by the clock signal of the scanning line. After the switching circuit is turned on, the adjacent first pixel is turned on. Charge sharing is performed between the circuit and the second pixel circuit. The charge sharing time is the on time of the scan line, thereby extending the charge sharing time and enhancing the charge sharing effect.
  • the switch circuit does not require additional timing signal control, which simplifies the control method. , Reducing costs.
  • FIG. 1 is a functional module diagram of an embodiment of a driving device of the present application
  • FIG. 2 is a schematic structural diagram of an embodiment of a driving device of the present application.
  • FIG. 3 is a schematic diagram of a scanning line control charge sharing waveform of the present application.
  • FIG. 4 is a functional module diagram of an embodiment of a display device of the present application.
  • FIG. 5 is a flowchart of an embodiment of a driving method of the present application.
  • the directional indication is only used to explain in a specific posture (as shown in the drawings) (Shown) the relative positional relationship, movement, etc. of the various components, if the specific posture changes, the directional indicator will change accordingly.
  • the present application proposes a driving device.
  • the driving device includes:
  • a substrate (not shown); a plurality of first data lines and a plurality of second data lines are alternately disposed on the substrate in parallel; a plurality of scanning lines are disposed on the substrate, and the first data lines and The second data lines are vertically intersected; a pixel array 100, each pixel array 100 is respectively connected to a corresponding scanning line; each pixel array includes a first pixel circuit 10, a second pixel circuit 20, and a connection between the first pixel circuit and The switching circuit 30 of the second pixel circuit controls the conduction of the switching circuit 30 through the scanning lines, so that the charge sharing is performed between the first pixel circuit 10 and the second pixel circuit 20.
  • the data lines are divided into odd data lines and even data lines, where the odd data line is a first data line and the even data line is a second data line.
  • the pixel array is a liquid crystal pixel array and is applied to a liquid crystal display.
  • the technical solution of this application can also be applied to AMOLED (Active-matrix organic light emitting diode (active matrix organic light emitting diode panel), TFT-LCD (thin film transistor-liquid crystal display, thin film transistor liquid crystal display). Not one by one here.
  • TFT-LCD technology is a technology that ingeniously combines microelectronic technology and liquid crystal display technology. People use the technology of microelectronic fine processing on SI, transplanted to large area glass for TFT array processing, and then the array substrate and another substrate with color filter film, using the mature LCD technology, A liquid crystal cell is formed and combined, and then a post-process such as a polarizer is applied to form a liquid crystal display.
  • a plurality of scanning lines and data lines are included to control the charging and discharging of the first pixel circuit or the second pixel circuit to display an image.
  • the data line When the data line is driven, its voltage polarity is reversed in accordance with the duty cycle.
  • energy is continuously consumed.
  • the effect of charge sharing can be achieved by performing charge neutralization between the first pixel circuit and the second pixel circuit. In order to improve the efficiency of energy use You can use charge sharing to reduce such energy consumption.
  • a switching circuit 30 is provided between the adjacent first pixel circuit 10 and the second pixel circuit 20, and the conduction of the switching circuit 30 is controlled by the clock signal of the scanning line.
  • Charge sharing is performed between the adjacent first pixel circuit 10 and the second pixel circuit 20, and the charge sharing time is the on time of the scanning line.
  • the technical solution of the present application prolongs the charge sharing time and increases the charge sharing effect, and the switching circuit does not need additional timing signal control, which simplifies the control strategy and reduces the cost.
  • the substrate is a glass substrate.
  • the first pixel circuit 10 or the second pixel circuit 20 includes a storage capacitor Cd, a liquid crystal capacitor Cs, and a first thin film transistor T1; a first terminal of the storage capacitor Cd and a first terminal of the liquid crystal capacitor Cs. Connected, the second terminal of the storage capacitor Cd is grounded, the second terminal of the liquid crystal capacitor Cs is grounded, the gate of the first thin film transistor T1 is connected to the scan line, and the drain of the first thin film transistor T1 is connected to The liquid crystal capacitor Cs is connected, and a source of the first thin film transistor T1 is connected to a first data line or a second data line.
  • the switching circuit 30 is a second thin film transistor T2.
  • the switch circuit 30 is a controllable switch.
  • a thin film transistor commonly used in the field of liquid crystal display is used for implementation.
  • the first terminal of the switching circuit 30 is connected to the first terminal of the liquid crystal capacitor Cs of the first pixel circuit 10, and the second terminal of the switching circuit 30 is connected to the liquid crystal capacitor Cs of the second adjacent pixel unit 10.
  • the first terminal is connected to the scanning line of the previous row adjacent to the scanning line connected to the first thin film transistor T1, and is connected to the controlled end of the switching circuit 30, wherein the scanning line is connected to the first thin film transistor T1 Adjacent scan lines.
  • the switching circuit 30, that is, the gate of the second thin film transistor T2 is connected to the scanning line, and the source of the second thin film transistor T2 is connected to the liquid crystal capacitor Cs of the first pixel circuit 10, that is, the first data line is controlled.
  • the lower pixel electrode is connected; the gate of the second thin film transistor T2 is connected to the liquid crystal capacitor Cs of the second adjacent pixel unit 10, that is, the pixel electrode controlled by the second data line.
  • the scan lines on the substrate are scanned line by line at a preset timing.
  • the sequence is from top to bottom.
  • the turn-on time of each line of scan lines is fixed and equal.
  • Cs and storage capacitor Cd are charged and discharged.
  • the first thin film transistor T1 connected to the scan line is turned on, and the first data line and the second data line charge the liquid crystal capacitor Cs and the storage capacitor; and the scan line
  • the connected second thin film transistor T2 is turned on, and charge sharing is performed between the adjacent first pixel circuit 10 and the second pixel circuit 20.
  • NMOS single tube is generally used as the switch of negative grayscale voltage; PMOS single tube is used as the switch of positive grayscale voltage.
  • the data line becomes phase Adjacent positive and negative polarity lines, and charge sharing basically occurs between the two adjacent data lines.
  • the first thin film transistor T1 connected to the first data line is an N-channel MOS tube
  • the first thin film transistor T1 connected to the second data line is a P-channel MOS tube.
  • the display panel of the display device includes a plurality of scan lines and data lines to control the charging and discharging of the first pixel circuit 10 or the second pixel circuit 20 to display an image.
  • the data line is driven, its voltage polarity is reversed according to the duty cycle.
  • the present application also proposes a display device including the driving device as described above.
  • the display device array substrate includes: a substrate; a plurality of first data lines and a plurality of second data lines are alternately disposed on the substrate in parallel; a plurality of scanning lines are disposed on the substrate and are in contact with the first The data line and the second data line are vertically intersected; multiple sets of pixel arrays 100 are arranged on the substrate; each pixel array 100 includes a first pixel circuit 10, a second pixel circuit 20, and a connection to the first pixel circuit
  • the switching circuit 30 between 10 and the second pixel unit 20 controls the conduction of the switching circuit 30 through the scanning lines, so that the charge sharing is performed between the first pixel circuit 10 and the second pixel circuit 20.
  • the display device further includes a logic board and the driving device as described above, and the logic board (ie, TCON) is electrically connected to the driving device.
  • the logic board ie, TCON
  • a gate driver and a source driver are provided on the driving device, and the gate driver and the source driver are respectively connected to the logic board.
  • each pixel includes three three primary color sub-pixels, which are RGB sub-pixels representing red, green, and blue.
  • the image data is input to TCON, and after processing and conversion, a display data signal and a clock control signal of the source driver and the gate driver are formed. Specifically, a data signal is loaded by a source driver, a timing is controlled by a gate driver, and a clock signal is transmitted to a pixel of a glass substrate through a driver board, thereby realizing scanning display of an image.
  • the logic board outputs a clock signal at a fixed time, so that the first thin film transistor T1 of each row is sequentially turned on, and at the same time, the source driver outputs a corresponding display data signal to a whole column of the first pixel circuit 10 or the second pixel circuit, making it Charge to the respective required voltage to display different gray levels.
  • the clock signal of the row is turned off, and then the logic board outputs a clock signal to turn on the first thin film transistor T1 of the next row, and then the source driver controls the pixel unit 10 or the second pixel of the next row.
  • the circuit performs charge and discharge, and so on, until all the pixel units 10 or the second pixel circuits are fully charged.
  • the present application also proposes a driving method, which includes:
  • the controlled end of the switch circuit and the corresponding data line want to be connected, and the level of the data line is inverted according to a certain period.
  • the conduction of the switching circuit 30 is controlled by a data line. Multiple scan lines are scanned one by one at a certain period.
  • the switching circuit 30 is provided between the adjacent first pixel circuit 10 and the second pixel circuit 20, and the conduction of the switching circuit 30 is controlled by the clock signal of the scanning line. After the switching circuit 30 is turned on, the adjacent first Charge sharing is performed between the pixel circuit 10 and the second pixel circuit 20, and the time for the charge sharing is the on time of the scan line. This extends the charge sharing time and increases the effect of charge sharing.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

A drive device, a display device, and a drive method. The drive device comprises: a substrate; a plurality of scan lines located on the substrate; and pixel arrays (100). Each pixel array (100) is separately collected to the corresponding scan line. Each pixel array (100) comprises a first pixel circuit (10), a second pixel circuit (20), and a switching circuit (30) connecting the first pixel circuit (10) to the second pixel circuit (20). The scan line controls the switching circuit (30) to be turned on such that charge sharing is implemented between the first pixel circuit (10) and the second pixel circuit (20).

Description

驱动装置、显示装置及液晶显示器  Driving device, display device and liquid crystal display Ranch
相关申请  Related applications
本申请要求2018年8月1日申请的，申请号为201810862068.9，名为 “驱动装置、显示装置及驱动方法”的中国专利申请的优先权，在此将其全文引入作为参考。If this application requires an application on August 1, 2018, the application number is 201810862068.9, named The priority of the Chinese patent application of "driving device, display device and driving method" is incorporated herein by reference in its entirety.
技术领域Technical field
本申请涉及显示装置技术领域，特别涉及一种驱动装置、显示装置及驱动方法。The present application relates to the technical field of display devices, and in particular, to a driving device, a display device, and a driving method.
背景技术Background technique
功能先进的显示器渐成为现今消费电子产品的重要特色，其中显示装置已经广泛应用于各种电子设备如电视、移动电话、个人数字助理(PDA)、数字相机。 Advanced displays have become an important feature of today's consumer electronics products. Among them, display devices have been widely used in various electronic devices such as televisions, mobile phones, personal digital assistants (PDAs), and digital cameras.
在显示装置的显示面板上，包括有多条扫描线及数据线来控制像素单元的充放电，以显示图像。其中数据线在进行驱动时，其电压极性按照工作周期反转，在数据线极性不断反转的过程中，电能被不断的消耗掉。为了提高电能使用的效率，可以利用电荷分享减少这样的电能消耗。The display panel of the display device includes a plurality of scan lines and data lines to control the charging and discharging of the pixel unit to display an image. When the data line is driven, its voltage polarity is reversed in accordance with the duty cycle. In the process of the data line polarity being continuously reversed, power is continuously consumed. In order to improve the efficiency of power usage, charge sharing can be used to reduce such power consumption.
在进行电荷分享时，两条数据线上所携带的相反电荷就进行中和，各自回复到某个中间值附近，等到灰阶电压反转时，正负灰阶电压的起点就变成这个中间值，从而更容易达到目标电压。现有技术中，电荷分享时间为极性偏转信号高电平的维持时间，这个维持时间非常短暂，因此会出现电荷分享效果不充分的情况 。When charge sharing is performed, the opposite charges carried on the two data lines are neutralized, and each returns to a certain intermediate value. When the grayscale voltage is reversed, the starting point of the positive and negative grayscale voltage becomes this middle. Value, making it easier to reach the target voltage. In the prior art, the charge sharing time is the sustaining time of the high level of the polarity deflection signal. This sustaining time is very short, so the charge sharing effect may be insufficient. .
这里的陈述仅提供与本申请有关的背景信息，而不必然地构成现有技术。The statements herein merely provide background information related to the present application and do not necessarily constitute prior art.
申请内容Application content
本申请的主要目的是提出一种驱动装置，旨在延长电荷分享时间，使电荷分享更充分。The main purpose of this application is to propose a driving device, which aims to extend the charge sharing time and make the charge sharing more sufficient.
为实现上述目的，本申请提出的驱动装置包括：In order to achieve the above purpose, the driving device proposed in this application includes:
基板；Substrate
多条扫描线，设置于所述基板上；A plurality of scanning lines disposed on the substrate;
每一像素阵列包括两第一像素电路、第二像素电路及连接第一像素电路与第二像素电路的开关电路，通过扫描线控制开关电路的导通，使得第一像素电路与第二像素电路之间进行电荷分享。Each pixel array includes two first pixel circuits, a second pixel circuit, and a switch circuit connecting the first pixel circuit and the second pixel circuit, and the conduction of the switch circuits is controlled by a scanning line so that the first pixel circuit and the second pixel circuit Charge sharing between.
在一实施例中，所述驱动装置还包括多条第一数据线和多条第二数据线，第一数据线和第二数据线交替设置于所述基板；所述扫描线与所述第一数据线及所述第二数据线垂直交叉设置。In an embodiment, the driving device further includes a plurality of first data lines and a plurality of second data lines, the first data lines and the second data lines are alternately disposed on the substrate; the scan lines and the first data lines A data line and the second data line are vertically intersected.
在一实施例中，所述第一像素电路或第二像素电路包括存储电容、液晶电容及第一薄膜晶体管；所述存储电容的第一端与所述液晶电容的第一端连接，所述存储电容的第二端接地，所述液晶电容的第二端接地，所述第一薄膜晶体管的栅极与所述扫描线连接，所述第一薄膜晶体管的漏极与所述液晶电容连接，所述第一薄膜晶体管的源极与第一数据线或第二数据线连接。In an embodiment, the first pixel circuit or the second pixel circuit includes a storage capacitor, a liquid crystal capacitor, and a first thin film transistor; a first end of the storage capacitor is connected to a first end of the liquid crystal capacitor, and the The second end of the storage capacitor is grounded, the second end of the liquid crystal capacitor is grounded, the gate of the first thin film transistor is connected to the scan line, and the drain of the first thin film transistor is connected to the liquid crystal capacitor. The source of the first thin film transistor is connected to the first data line or the second data line.
在一实施例中，所述开关电路为第二薄膜晶体管。In one embodiment, the switching circuit is a second thin film transistor.
在一实施例中，所述开关电路的第一端与第一像素电路的液晶电容的第一端连接，所述开关电路的第二端与第二像素电路的液晶电容的第一端连接，与第一薄膜晶体管连接的扫描线相邻的上一行扫描线，和所述开关电路的受控端连接。In an embodiment, a first end of the switching circuit is connected to a first end of a liquid crystal capacitor of a first pixel circuit, a second end of the switching circuit is connected to a first end of a liquid crystal capacitor of a second pixel circuit, The scanning line of the previous row adjacent to the scanning line connected to the first thin film transistor is connected to the controlled end of the switching circuit.
在一实施例中，在一扫描线为高电平时，与该扫描线相连接的第一薄膜晶体管导通，第一数据线及第二数据线给液晶电容及储存电容进行充放电；与该扫描线相连接的开关电路导通，相邻相邻第一像素电路和第二像素电路进行电荷分享。In one embodiment, when a scan line is at a high level, the first thin film transistor connected to the scan line is turned on, and the first data line and the second data line charge and discharge the liquid crystal capacitor and the storage capacitor; and The switch circuits connected to the scanning lines are turned on, and adjacent neighboring first pixel circuits and second pixel circuits perform charge sharing.
在一实施例中，与所述第一数据线连接的第一薄膜晶体管为N沟道MOS管，与所述第二数据线连接的第一薄膜晶体管为P沟道MOS管。In one embodiment, the first thin film transistor connected to the first data line is an N-channel MOS transistor, and the first thin film transistor connected to the second data line is a P-channel MOS transistor.
在一实施例中，所述扫描线按照预设时序逐行扫描。In one embodiment, the scan lines are scanned line by line at a preset timing.
本申请还提出一种显示装置，所述显示装置包括如上所述的驱动装置。所述显示装置阵列基板包括:一基板；多条第一数据线和多条第二数据线，平行交替设置于在所述基板；多条扫描线，设置于所述基板上，与所述第一数据线及所述第二数据线交错；多个像素单元，阵列设置于所述基板；同一行两相邻像素单元之间还设有开关电路，通过扫描线控制开关电路的导通，使得像素单元之间进行电荷分享。The present application also proposes a display device including the driving device as described above. The display device array substrate includes: a substrate; a plurality of first data lines and a plurality of second data lines are alternately disposed on the substrate in parallel; a plurality of scanning lines are disposed on the substrate, and the first A data line and the second data line are staggered; a plurality of pixel units, an array is disposed on the substrate; a switch circuit is also provided between two adjacent pixel units in the same row, and the conduction of the switch circuit is controlled by scanning lines, so that Charge sharing is performed between the pixel units.
本申请提出一种驱动装置的驱动方法，该方法包括：This application proposes a driving method for a driving device, which method includes:
侦测扫描线上的电平；Detect the level on the scan line;
在侦测到扫描线上为高电平时，控制所述开关电路导通，使得相邻第一像素电路和第二像素电路进行电荷分享。When a high level is detected on the scanning line, the switch circuit is controlled to be turned on, so that the adjacent first pixel circuit and the second pixel circuit perform charge sharing.
本申请技术方案通过在相邻的第一像素电路和第二像素电路之间设置开关电路，并通过扫描线的时钟信号来控制开关电路的导通，开关电路导通后相邻的第一像素电路和第二像素电路之间进行电荷分享，电荷分享的时间为扫描线的开启时间，从而延长了电荷分享时间，增强了电荷分享效果，且开关电路无需额外的时序信号控制，简化了控制方式，降低了成本。In the technical solution of the present application, a switching circuit is provided between the adjacent first pixel circuit and the second pixel circuit, and the conduction of the switching circuit is controlled by the clock signal of the scanning line. After the switching circuit is turned on, the adjacent first pixel is turned on. Charge sharing is performed between the circuit and the second pixel circuit. The charge sharing time is the on time of the scan line, thereby extending the charge sharing time and enhancing the charge sharing effect. The switch circuit does not require additional timing signal control, which simplifies the control method. , Reducing costs.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
为了更清楚地说明本申请实施例或现有技术中的技术方案，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申请的一些实施例，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示出的结构获得其他的附图。In order to explain the technical solutions in the embodiments of the present application or the prior art more clearly, the drawings used in the description of the embodiments or the prior art are briefly introduced below. Obviously, the drawings in the following description are merely These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to the structure shown in the drawings without paying creative labor.
图1为本申请驱动装置一实施例的功能模块图；FIG. 1 is a functional module diagram of an embodiment of a driving device of the present application; FIG.
图2为本申请驱动装置一实施例的结构示意图；2 is a schematic structural diagram of an embodiment of a driving device of the present application;
图3为本申请扫描线控制电荷分享波形示意图；FIG. 3 is a schematic diagram of a scanning line control charge sharing waveform of the present application; FIG.
图4为本申请显示装置一实施例的功能模块图；4 is a functional module diagram of an embodiment of a display device of the present application;
图5为本申请驱动方法一实施例的流程图。FIG. 5 is a flowchart of an embodiment of a driving method of the present application.
本申请目的的实现、功能特点及优点将结合实施例，参照附图做可选说明。The realization of the purpose, functional characteristics and advantages of the present application will be described in combination with the embodiments with reference to the drawings.
具体实施方式detailed description
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
需要说明，若本申请实施例中有涉及方向性指示（诸如上、下、左、右、前、后……），则该方向性指示仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。It should be noted that if there is a directional indication (such as up, down, left, right, front, back, etc.) in the embodiment of the present application, the directional indication is only used to explain in a specific posture (as shown in the drawings) (Shown) the relative positional relationship, movement, etc. of the various components, if the specific posture changes, the directional indicator will change accordingly.
另外，若本申请实施例中有涉及“第一”、“第二”等的描述，则该“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。In addition, if there are descriptions related to "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for description purposes, and cannot be understood as instructions or hints Its relative importance or implicitly indicates the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on those that can be realized by a person of ordinary skill in the art. When the combination of technical solutions conflicts or cannot be achieved, it should be considered that such a combination of technical solutions does not exist. Is not within the scope of protection claimed in this application.
本申请提出一种驱动装置。The present application proposes a driving device.
在本申请实施例中，如图1所示，该驱动装置包括：In the embodiment of the present application, as shown in FIG. 1, the driving device includes:
基板（未图示）；多条第一数据线和多条第二数据线，平行交替设置于在所述基板；多条扫描线，设置于所述基板上，与所述第一数据线及所述第二数据线垂直交叉设置；像素阵列100，每一像素阵列100分别与对应的扫描线连接；每一像素阵列包括第一像素电路10、第二像素电路20及连接第一像素电路与第二像素电路的开关电路30，通过扫描线控制开关电路30的导通，使得第一像素电路10与第二像素电路20之间进行电荷分享。A substrate (not shown); a plurality of first data lines and a plurality of second data lines are alternately disposed on the substrate in parallel; a plurality of scanning lines are disposed on the substrate, and the first data lines and The second data lines are vertically intersected; a pixel array 100, each pixel array 100 is respectively connected to a corresponding scanning line; each pixel array includes a first pixel circuit 10, a second pixel circuit 20, and a connection between the first pixel circuit and The switching circuit 30 of the second pixel circuit controls the conduction of the switching circuit 30 through the scanning lines, so that the charge sharing is performed between the first pixel circuit 10 and the second pixel circuit 20.
本实施例中，将数据线分为奇数据线和偶数据线，其中奇数据线为第一数据线，偶数据线为第二数据线。In this embodiment, the data lines are divided into odd data lines and even data lines, where the odd data line is a first data line and the even data line is a second data line.
需要说明的是，本实施例中，该像素阵列为液晶像素阵列，应用于液晶显示器。除此之外，本申请技术方案还可应用于AMOLED（Active-matrix organic light emitting diode，有源矩阵有机发光二极体面板）、TFT-LCD（thin film transistor-liquid crystal display，薄膜晶体管液晶显示器）等。此处不一一列举。It should be noted that, in this embodiment, the pixel array is a liquid crystal pixel array and is applied to a liquid crystal display. In addition, the technical solution of this application can also be applied to AMOLED (Active-matrix organic light emitting diode (active matrix organic light emitting diode panel), TFT-LCD (thin film transistor-liquid crystal display, thin film transistor liquid crystal display). Not one by one here.
其中，而AMOLED与多数手机使用的传统液晶显示器相比，具有更宽的视角、更高的刷新率和更薄的尺寸，因此正在得到智能手机采用。TFT-LCD技术是微电子技术与液晶显示器技术巧妙结合的一种技术。人们利用在SI上进行微电子精细加工的技术，移植到在大面积玻璃上进行TFT阵列的加工，再将该阵列基板与另一片带彩色滤色膜的基板，利用与业已成熟的LCD技术，形成一个液晶盒相结合，再经过后工序如偏光片贴覆等过程，最后形成液晶显示器。Among them, AMOLED has wider viewing angle, higher refresh rate and thinner size than traditional LCD displays used in most mobile phones, and is therefore being adopted by smart phones. TFT-LCD technology is a technology that ingeniously combines microelectronic technology and liquid crystal display technology. People use the technology of microelectronic fine processing on SI, transplanted to large area glass for TFT array processing, and then the array substrate and another substrate with color filter film, using the mature LCD technology, A liquid crystal cell is formed and combined, and then a post-process such as a polarizer is applied to form a liquid crystal display.
本实施例中，包括有多条扫描线及数据线来控制第一像素电路或第二像素电路的充放电以显示图像。其中数据线在进行驱动时，其电压极性按照工作周期反转，在不断反转数据线极性的过程中，能源被不断的消耗掉。例如当第一像素电路需要放电、第二像素电路需要充电时，就可以通过在第一像素电路和第二像素电路之间进行电荷中和，以达到电荷分享的效果，为了改善能源使用的效率，可以利用电荷分享减少这样的能源消耗。In this embodiment, a plurality of scanning lines and data lines are included to control the charging and discharging of the first pixel circuit or the second pixel circuit to display an image. When the data line is driven, its voltage polarity is reversed in accordance with the duty cycle. In the process of continuously inverting the data line polarity, energy is continuously consumed. For example, when the first pixel circuit needs to be discharged and the second pixel circuit needs to be charged, the effect of charge sharing can be achieved by performing charge neutralization between the first pixel circuit and the second pixel circuit. In order to improve the efficiency of energy use You can use charge sharing to reduce such energy consumption.
本申请技术方案通过在相邻的第一像素电路10和第二像素电路20之间设置开关电路30，并通过扫描线的时钟信号来控制开关电路30的导通，开关电路30导通后相邻的第一像素电路10和第二像素电路20之间进行电荷分享，电荷分享的时间为扫描线的开启时间。本申请技术方案延长了电荷分享时间，增加电荷分享效果，且开关电路无需额外的时序信号控制，简化了控制策略，降低了成本。In the technical solution of the present application, a switching circuit 30 is provided between the adjacent first pixel circuit 10 and the second pixel circuit 20, and the conduction of the switching circuit 30 is controlled by the clock signal of the scanning line. Charge sharing is performed between the adjacent first pixel circuit 10 and the second pixel circuit 20, and the charge sharing time is the on time of the scanning line. The technical solution of the present application prolongs the charge sharing time and increases the charge sharing effect, and the switching circuit does not need additional timing signal control, which simplifies the control strategy and reduces the cost.
本实施例中，所述基板为玻璃基板。In this embodiment, the substrate is a glass substrate.
具体地，所述第一像素电路10或第二像素电路20包括存储电容Cd、液晶电容Cs及第一薄膜晶体管T1；所述存储电容Cd的第一端与所述液晶电容Cs的第一端连接，所述存储电容Cd的第二端接地，所述液晶电容Cs的第二端接地，所述第一薄膜晶体管T1的栅极与扫描线连接，所述第一薄膜晶体管T1的漏极与所述液晶电容Cs连接，所述第一薄膜晶体管T1的源极与第一数据线或第二数据线连接。Specifically, the first pixel circuit 10 or the second pixel circuit 20 includes a storage capacitor Cd, a liquid crystal capacitor Cs, and a first thin film transistor T1; a first terminal of the storage capacitor Cd and a first terminal of the liquid crystal capacitor Cs. Connected, the second terminal of the storage capacitor Cd is grounded, the second terminal of the liquid crystal capacitor Cs is grounded, the gate of the first thin film transistor T1 is connected to the scan line, and the drain of the first thin film transistor T1 is connected to The liquid crystal capacitor Cs is connected, and a source of the first thin film transistor T1 is connected to a first data line or a second data line.
可选地，所述开关电路30为第二薄膜晶体管T2。Optionally, the switching circuit 30 is a second thin film transistor T2.
值得说明的是，开关电路30采用可控开关，本实施中采用在液晶显示领域常用的薄膜晶体管来实现。It is worth noting that the switch circuit 30 is a controllable switch. In this embodiment, a thin film transistor commonly used in the field of liquid crystal display is used for implementation.
具体地，所述开关电路30的第一端与第一像素电路10的液晶电容Cs的第一端连接，所述开关电路30的第二端与第二相邻像素单元10的液晶电容Cs的第一端连接，与第一薄膜晶体管T1连接的扫描线相邻的上一行扫描线，和所述开关电路30的受控端连接，其中该扫描线为与所述第一薄膜晶体管T1连接的相邻的扫描线。Specifically, the first terminal of the switching circuit 30 is connected to the first terminal of the liquid crystal capacitor Cs of the first pixel circuit 10, and the second terminal of the switching circuit 30 is connected to the liquid crystal capacitor Cs of the second adjacent pixel unit 10. The first terminal is connected to the scanning line of the previous row adjacent to the scanning line connected to the first thin film transistor T1, and is connected to the controlled end of the switching circuit 30, wherein the scanning line is connected to the first thin film transistor T1 Adjacent scan lines.
本实施例中，开关电路30，即第二薄膜晶体管T2的栅极与扫描线连接，第二薄膜晶体管T2的源极与第一像素电路10的液晶电容Cs连接，即与第一数据线控制下的像素电极连接；第二薄膜晶体管T2的栅极与第二相邻像素单元10的液晶电容Cs连接，即与第二数据线控制下的像素电极连接。In this embodiment, the switching circuit 30, that is, the gate of the second thin film transistor T2 is connected to the scanning line, and the source of the second thin film transistor T2 is connected to the liquid crystal capacitor Cs of the first pixel circuit 10, that is, the first data line is controlled. The lower pixel electrode is connected; the gate of the second thin film transistor T2 is connected to the liquid crystal capacitor Cs of the second adjacent pixel unit 10, that is, the pixel electrode controlled by the second data line.
值得说明的是，基板上的扫描线按照预设时序逐行扫描，其顺序为由上及下，每一行扫描线的开启时间是固定且相等的，在扫描线开启后，数据线给液晶电容Cs和储存电容Cd进行充放电。It is worth noting that the scan lines on the substrate are scanned line by line at a preset timing. The sequence is from top to bottom. The turn-on time of each line of scan lines is fixed and equal. Cs and storage capacitor Cd are charged and discharged.
具体地，在一扫描线为高电平时，与该扫描线相连接的第一薄膜晶体管T1导通，第一数据线及第二数据线给液晶电容Cs及储存电容进行充电；与该扫描线相连接的第二薄膜晶体管T2导通，相邻第一像素电路10与第二像素电路20之间进行电荷分享。Specifically, when a scan line is at a high level, the first thin film transistor T1 connected to the scan line is turned on, and the first data line and the second data line charge the liquid crystal capacitor Cs and the storage capacitor; and the scan line The connected second thin film transistor T2 is turned on, and charge sharing is performed between the adjacent first pixel circuit 10 and the second pixel circuit 20.
易于理解的是，所述第一数据线和所述第二数据线电压极性相反，且第一数据线和第二数据线的电压极性按照一定的预设时间不断的反转。It is easy to understand that the voltage polarities of the first data line and the second data line are opposite, and the voltage polarities of the first data line and the second data line are continuously reversed according to a certain preset time.
因为像素电压分正极性和负极性，为了降低电路面积一般用NMOS单管作为负极性灰阶电压的开关；用PMOS单管作为正极性灰阶电压的开关，对应的，数据线就变成相邻的正负极性线，而电荷分享基本都是发生在这相邻的两条数据线之间。 Because the pixel voltage is divided into positive polarity and negative polarity, in order to reduce the circuit area, NMOS single tube is generally used as the switch of negative grayscale voltage; PMOS single tube is used as the switch of positive grayscale voltage. Correspondingly, the data line becomes phase Adjacent positive and negative polarity lines, and charge sharing basically occurs between the two adjacent data lines. Ranch
本实施例中，与所述第一数据线连接的第一薄膜晶体管T1为N沟道MOS管，与所述第二数据线连接的第一薄膜晶体管T1为P沟道MOS管。In this embodiment, the first thin film transistor T1 connected to the first data line is an N-channel MOS tube, and the first thin film transistor T1 connected to the second data line is a P-channel MOS tube.
现结合图2对本申请技术方案作可选阐述，本实施例以图2中的像素单元10说明：The technical solution of the present application is optionally described with reference to FIG. 2. This embodiment is described by using the pixel unit 10 in FIG. 2:
将极性相反的相邻数据线按奇数和偶数进行编号，命名为S(2n-1) 、 S2n（从左到右依次n=1，2，3，4，……960），以FHD（Full High Definition，全高清）为列；The adjacent data lines with opposite polarities are numbered according to odd and even numbers, named S (2n-1) , S 2n (n = 1, 2, 3, 4, ... 960 from left to right), and FHD (Full High Definition)
将控制像素电极充电的第一薄膜集体管T1放在扫描线Gm上侧，并且处于数据线S2n-1左侧；Placing the first thin film collective tube T1 that controls the charging of the pixel electrode on the upper side of the scanning line G m and on the left side of the data line S 2n-1 ;
将控制电荷分享的第二薄膜集体管T2放在扫描线Gm 下侧，并且靠进第一数据线S2n-1；Placing the second thin film collective tube T2 for controlling charge sharing on the lower side of the scanning line G m and leaning into the first data line S 2n-1 ;
将第二薄膜集体管T2的栅极与扫描线Gm 相连接；Connecting the gate of the second thin film collective tube T2 with the scanning line G m ;
将第二薄膜集体管T2的源极与S2n-1 控制的下一个液晶像素电极相连接；Connecting the source of the second thin film collective tube T2 with the next liquid crystal pixel electrode controlled by S 2n-1 ;
将第二薄膜集体管T2的漏极与S2n 控制的下一个像素电极相连接；Connecting the drain of the second thin film collective tube T2 with the next pixel electrode controlled by S 2n ;
当扫描线Gm 上电压为高电压时，该行的液晶电容和储存电容由数据线进行充放电；第二薄膜集体管T2导通，与第二薄膜集体管T2相连接的液晶电容和存储电容则进行电荷分享；When the voltage on the scanning line G m is high, the liquid crystal capacitors and storage capacitors in the row are charged and discharged by the data line; the second thin film collective tube T2 is turned on, and the liquid crystal capacitors and storage connected to the second thin film collective tube T2 are turned on. Capacitors perform charge sharing;
最终，在扫描线从Gm 切换到Gm+1的过程中，Gm+1 扫描线上由S2n-1、S2n 控制的像素电极信号波形变化如图3所示。Finally, during the switching of the scanning line from G m to G m + 1 , the waveform changes of the pixel electrode signals controlled by S 2n-1 and S 2n on the G m + 1 scanning line are shown in FIG. 3.
在显示装置的显示面板上，包括有多条扫描线及数据线来控制第一像素电路10或第二像素电路20的充放电，以显示图像。其中数据线在进行驱动时，其电压极性按照工作周期反转。The display panel of the display device includes a plurality of scan lines and data lines to control the charging and discharging of the first pixel circuit 10 or the second pixel circuit 20 to display an image. When the data line is driven, its voltage polarity is reversed according to the duty cycle.
在进行电荷分享时，两条数据线上所携带的相反电荷就进行中和，各自回复到某个中间值附近，等到灰阶电压反转时，正负灰阶电压的起点就变成这个中间值，从而更容易达到目标电压。从而降低了第一像素电路10或第二像素电路20充放电过程中的电能损耗，降低了显示装置的功耗。When charge sharing is performed, the opposite charges carried on the two data lines are neutralized, and each returns to a certain intermediate value. When the grayscale voltage is reversed, the starting point of the positive and negative grayscale voltage becomes this middle. Value, making it easier to reach the target voltage. As a result, the power loss during the charging and discharging of the first pixel circuit 10 or the second pixel circuit 20 is reduced, and the power consumption of the display device is reduced.
本申请还提出一种显示装置，所述显示装置包括如上所述的驱动装置。所述显示装置阵列基板包括:基板；多条第一数据线和多条第二数据线，平行交替设置于在所述基板；多条扫描线，设置于所述基板上，与所述第一数据线及所述第二数据线垂直交叉设置；多组像素阵列100，阵列设置于所述基板；每一像素阵列100包括第一像素电路10、第二像素电路20及连接该第一像素电路10与第二像素的单元20之间的开关电路30，通过扫描线控制开关电路30的导通，使得第一像素电路10和第二像素电路20之间进行电荷分享。The present application also proposes a display device including the driving device as described above. The display device array substrate includes: a substrate; a plurality of first data lines and a plurality of second data lines are alternately disposed on the substrate in parallel; a plurality of scanning lines are disposed on the substrate and are in contact with the first The data line and the second data line are vertically intersected; multiple sets of pixel arrays 100 are arranged on the substrate; each pixel array 100 includes a first pixel circuit 10, a second pixel circuit 20, and a connection to the first pixel circuit The switching circuit 30 between 10 and the second pixel unit 20 controls the conduction of the switching circuit 30 through the scanning lines, so that the charge sharing is performed between the first pixel circuit 10 and the second pixel circuit 20.
所述显示装置还包括逻辑板及如上所述的驱动装置，所述逻辑板（即TCON）与所述的驱动装置之间电性连接。驱动装置上设置有栅极驱动器及源极驱动器，所述栅极驱动器和源极驱动器分别与所述逻辑板连接。The display device further includes a logic board and the driving device as described above, and the logic board (ie, TCON) is electrically connected to the driving device. A gate driver and a source driver are provided on the driving device, and the gate driver and the source driver are respectively connected to the logic board.
需要说明的是，玻璃基板上设置多个呈矩阵排列的像素。每一个像素包括三个三原色子像素，分别为代表红绿蓝的RGB子像素。图像数据输入TCON，经处理变换后形成了显示数据信号，及源极驱动器和栅极驱动器的时钟控制信号。具体是，通过源极驱动器装载数据信号，通过栅极驱动器控制时序，通过驱动板传递时钟信号至玻璃基板的像素，实现了图像的扫描显示。It should be noted that a plurality of pixels arranged in a matrix are provided on the glass substrate. Each pixel includes three three primary color sub-pixels, which are RGB sub-pixels representing red, green, and blue. The image data is input to TCON, and after processing and conversion, a display data signal and a clock control signal of the source driver and the gate driver are formed. Specifically, a data signal is loaded by a source driver, a timing is controlled by a gate driver, and a clock signal is transmitted to a pixel of a glass substrate through a driver board, thereby realizing scanning display of an image.
逻辑板每隔固定时间输出时钟信号，使得每一行的第一薄膜晶体管T1依序打开，同时源极驱动器输出对应的显示数据信号至一整列的第一像素电路10或第二像素电路，使其充电到各自所需的电压，以显示不同的灰阶。当同一行的充电完毕后，将该行的时钟信号关闭，然后逻辑板再输出时钟信号将下一行的第一薄膜晶体管T1打开，再由源极驱动器对下一行的像素单元10或第二像素电路进行冲放电，如此进行下去，直到所有的像素单元10或第二像素电路都充电完毕。以一个1024×768分辨率的显示装置以及60HZ刷新频率为例，共需要1024×768×3个子像素组合而成，每一画面的显示时间为1/60=16.7ms（毫秒）。The logic board outputs a clock signal at a fixed time, so that the first thin film transistor T1 of each row is sequentially turned on, and at the same time, the source driver outputs a corresponding display data signal to a whole column of the first pixel circuit 10 or the second pixel circuit, making it Charge to the respective required voltage to display different gray levels. When the charging of the same row is completed, the clock signal of the row is turned off, and then the logic board outputs a clock signal to turn on the first thin film transistor T1 of the next row, and then the source driver controls the pixel unit 10 or the second pixel of the next row. The circuit performs charge and discharge, and so on, until all the pixel units 10 or the second pixel circuits are fully charged. Taking a 1024 × 768 resolution display device and a 60HZ refresh frequency as an example, a total of 1024 × 768 × 3 sub-pixels are required to be combined, and the display time of each screen is 1/60 = 16.7ms (milliseconds).
参照图5，基于上述驱动装置，本申请还提出一种驱动方法，该方法包括：Referring to FIG. 5, based on the above driving device, the present application also proposes a driving method, which includes:
S100、侦测扫描线上的电平；S100: Detect the level on the scanning line;
S200、在侦测到扫描线上为高电平时，控制所述开关电路导通，使得像素阵列中第一像素电路10和第二像素电路20之间进行电荷分享。S200. When the scanning line is detected to be at a high level, control the switch circuit to be turned on, so that charge sharing is performed between the first pixel circuit 10 and the second pixel circuit 20 in the pixel array.
值得说明的是，本实施例中，该开关电路的受控端与对应的数据线想连接，数据线的电平按照一定的周期进行反转。通过数据线来控制开关电路30的导通。多条扫描线按照一定的周期逐一扫描。It is worth noting that, in this embodiment, the controlled end of the switch circuit and the corresponding data line want to be connected, and the level of the data line is inverted according to a certain period. The conduction of the switching circuit 30 is controlled by a data line. Multiple scan lines are scanned one by one at a certain period.
通过在相邻的第一像素电路10和第二像素电路20之间设置开关电路30，并通过扫描线的时钟信号来控制开关电路30的导通，开关电路30导通后相邻的第一像素电路10和第二像素电路20之间进行电荷分享，电荷分享的时间为扫描线的开启时间。从而延长了电荷分享时间，增加电荷分享效果。The switching circuit 30 is provided between the adjacent first pixel circuit 10 and the second pixel circuit 20, and the conduction of the switching circuit 30 is controlled by the clock signal of the scanning line. After the switching circuit 30 is turned on, the adjacent first Charge sharing is performed between the pixel circuit 10 and the second pixel circuit 20, and the time for the charge sharing is the on time of the scan line. This extends the charge sharing time and increases the effect of charge sharing.
以上所述仅为本申请的可选实施例，并非因此限制本申请的专利范围，凡是在本申请的申请构思下，利用本申请说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本申请的专利保护范围内。The above description is only an optional embodiment of the present application, and thus does not limit the patent scope of the present application. Any equivalent structural transformation made by using the specification and drawings of the present application under the concept of the application of the present application, or direct / indirect Applications in other related technical fields are covered by the patent protection scope of this application.

Claims (20)

  1. 一种显示面板的驱动装置，其中，该驱动装置包括： A driving device for a display panel, wherein the driving device includes:
    基板；Substrate
    多条扫描线，位于所述基板上；以及Multiple scan lines on the substrate; and
    像素阵列；其中，每一像素阵列分别与对应的扫描线连接；A pixel array; wherein each pixel array is respectively connected to a corresponding scanning line;
    每一像素阵列包括第一像素电路、第二像素电路及连接第一像素电路与第二像素电路的开关电路，通过扫描线控制开关电路的导通，使得第一像素电路与第二像素电路之间进行电荷分享。Each pixel array includes a first pixel circuit, a second pixel circuit, and a switching circuit connecting the first pixel circuit and the second pixel circuit, and the conduction of the switching circuit is controlled by a scanning line, so that the first pixel circuit and the second pixel circuit are connected. Charge sharing.
  2. 如权利要求1所述的驱动装置，其中，所述驱动装置还包括多条第一数据线和多条第二数据线，第一数据线和第二数据线交替设置；所述扫描线与所述第一数据线及所述第二数据线垂直交叉设置。The driving device according to claim 1, wherein the driving device further comprises a plurality of first data lines and a plurality of second data lines, and the first data lines and the second data lines are alternately arranged; The first data line and the second data line are vertically crossed.
  3. 如权利要求2所述的驱动装置，其中，所述第一数据线和所述第二数据线电压极性相反，且第一数据线和第二数据线的电压极性按照预设时间反转。The driving device according to claim 2, wherein the voltage polarities of the first data line and the second data line are opposite, and the voltage polarities of the first data line and the second data line are reversed according to a preset time .
  4. 如权利要求2所述的驱动装置，其中，所述第一像素电路或第二像素电路包括存储电容、液晶电容及第一薄膜晶体管；所述存储电容的第一端与所述液晶电容的第一端连接，所述存储电容的第二端接地，所述液晶电容的第二端接地，所述第一薄膜晶体管的栅极与所述扫描线连接，所述第一薄膜晶体管的漏极与所述液晶电容连接，所述第一薄膜晶体管的源极与第一数据线或第二数据线连接。The driving device according to claim 2, wherein the first pixel circuit or the second pixel circuit includes a storage capacitor, a liquid crystal capacitor, and a first thin film transistor; a first end of the storage capacitor and a first One end is connected, the second end of the storage capacitor is grounded, the second end of the liquid crystal capacitor is grounded, the gate of the first thin film transistor is connected to the scan line, and the drain of the first thin film transistor is connected to The liquid crystal capacitor is connected, and the source of the first thin film transistor is connected to the first data line or the second data line.
  5. 如权利要求4所述的驱动装置，其中，所述开关电路的第一端与第一像素电路的液晶电容的第一端连接，所述开关电路的第二端与第二像素电路的液晶电容的第一端连接；与第一薄膜晶体管连接的扫描线相邻的上一行扫描线，和所述开关电路的受控端连接。The driving device according to claim 4, wherein a first terminal of the switching circuit is connected to a first terminal of a liquid crystal capacitor of the first pixel circuit, and a second terminal of the switching circuit is connected to a liquid crystal capacitor of the second pixel circuit. The first end of the switching circuit is connected to the scanning line of the previous row adjacent to the scanning line connected to the first thin film transistor, and is connected to the controlled end of the switching circuit.
  6. 如权利要求3所述的驱动装置，其中，在一扫描线为高电平时，与该扫描线相连接的第一薄膜晶体管导通，第一数据线及第二数据线给液晶电容及储存电容进行充放电；与该扫描线相连接的开关电路导通，相邻第一像素电路和第二像素电路进行电荷分享。The driving device according to claim 3, wherein when a scanning line is at a high level, the first thin film transistor connected to the scanning line is turned on, and the first data line and the second data line are for the liquid crystal capacitor and the storage capacitor. Charge and discharge are performed; the switch circuit connected to the scan line is turned on, and adjacent first pixel circuits and second pixel circuits perform charge sharing.
  7. 如权利要求5所述的驱动装置，其中，与所述第一数据线连接的第一薄膜晶体管为N沟道MOS管，与所述第二数据线连接的第一薄膜晶体管为P沟道MOS管。The driving device according to claim 5, wherein the first thin film transistor connected to the first data line is an N-channel MOS transistor, and the first thin film transistor connected to the second data line is a P-channel MOS tube.
  8. 一种显示装置，其中，包括：A display device including:
    显示面板；以及驱动装置，其中所述驱动装置包括：A display panel; and a driving device, wherein the driving device includes:
    基板；Substrate
    多条扫描线，位于所述基板上；以及Multiple scan lines on the substrate; and
    像素阵列；其中，每一像素阵列分别与对应的扫描线连接；A pixel array; wherein each pixel array is respectively connected to a corresponding scanning line;
    每一像素阵列包括第一像素电路、第二像素电路及连接第一像素电路与第二像素电路的开关电路，通过扫描线控制开关电路的导通，使得第一像素电路与第二像素电路之间进行电荷分享。Each pixel array includes a first pixel circuit, a second pixel circuit, and a switching circuit connecting the first pixel circuit and the second pixel circuit, and the conduction of the switching circuit is controlled by a scanning line, so that the first pixel circuit and the second pixel circuit are connected. Charge sharing.
  9. 如权利要求8所述的显示装置，其中，所述驱动装置还包括多条第一数据线和多条第二数据线，第一数据线和第二数据线交替设置；所述扫描线与所述第一数据线及所述第二数据线垂直交叉设置。The display device according to claim 8, wherein the driving device further comprises a plurality of first data lines and a plurality of second data lines, and the first data lines and the second data lines are alternately arranged; the scan lines and the The first data line and the second data line are vertically crossed.
  10. 如权利要求9所述的显示装置，其中，所述第一数据线和所述第二数据线电压极性相反，且第一数据线和第二数据线的电压极性按照预设时间反转。The display device according to claim 9, wherein the voltage polarities of the first data line and the second data line are opposite, and the voltage polarities of the first data line and the second data line are reversed according to a preset time .
  11. 如权利要求9所述的显示装置，其中，所述第一像素电路或第二像素电路包括存储电容、液晶电容及第一薄膜晶体管；所述存储电容的第一端与所述液晶电容的第一端连接，所述存储电容的第二端接地，所述液晶电容的第二端接地，所述第一薄膜晶体管的栅极与所述扫描线连接，所述第一薄膜晶体管的漏极与所述液晶电容连接，所述第一薄膜晶体管的源极与第一数据线或第二数据线连接。The display device according to claim 9, wherein the first pixel circuit or the second pixel circuit comprises a storage capacitor, a liquid crystal capacitor, and a first thin film transistor; a first end of the storage capacitor and a first One end is connected, the second end of the storage capacitor is grounded, the second end of the liquid crystal capacitor is grounded, the gate of the first thin film transistor is connected to the scan line, and the drain of the first thin film transistor is connected to The liquid crystal capacitor is connected, and the source of the first thin film transistor is connected to the first data line or the second data line.
  12. 如权利要求11所述的显示装置，其中，所述开关电路的第一端与第一像素电路的液晶电容的第一端连接，所述开关电路的第二端与第二像素电路的液晶电容的第一端连接；与第一薄膜晶体管连接的扫描线相邻的上一行扫描线，和所述开关电路的受控端连接。The display device according to claim 11, wherein a first terminal of the switching circuit is connected to a first terminal of a liquid crystal capacitor of the first pixel circuit, and a second terminal of the switching circuit is connected to a liquid crystal capacitor of the second pixel circuit. The first end of the switching circuit is connected to the scanning line of the previous row adjacent to the scanning line connected to the first thin film transistor, and is connected to the controlled end of the switching circuit.
  13. 如权利要求10所述的显示装置，其中，在一扫描线为高电平时，与该扫描线相连接的第一薄膜晶体管导通，第一数据线及第二数据线给液晶电容及储存电容进行充放电；与该扫描线相连接的开关电路导通，相邻第一像素电路和第二像素电路进行电荷分享。The display device according to claim 10, wherein when a scanning line is at a high level, the first thin film transistor connected to the scanning line is turned on, and the first data line and the second data line are for the liquid crystal capacitor and the storage capacitor. Charge and discharge are performed; the switch circuit connected to the scan line is turned on, and adjacent first pixel circuits and second pixel circuits perform charge sharing.
  14. 如权利要求12所述的显示装置，其中，与所述第一数据线连接的第一薄膜晶体管为N沟道MOS管，与所述第二数据线连接的第一薄膜晶体管为P沟道MOS管。The display device according to claim 12, wherein the first thin film transistor connected to the first data line is an N-channel MOS transistor, and the first thin film transistor connected to the second data line is a P-channel MOS tube.
  15. 一种液晶显示器，其中，包括显示面板；以及驱动装置，其中所述驱动装置包括：A liquid crystal display including a display panel; and a driving device, wherein the driving device includes:
    基板；Substrate
    多条扫描线，位于所述基板上，基板上的扫描线按照预设时序逐行扫描；多条第一数据线和多条第二数据线，第一数据线和第二数据线交替设置；所述扫描线与所述第一数据线及所述第二数据线垂直交叉设置；以及A plurality of scan lines located on the substrate, and the scan lines on the substrate are scanned line by line at a preset timing; a plurality of first data lines and a plurality of second data lines, and the first data lines and the second data lines are alternately arranged; The scan lines are vertically intersected with the first data line and the second data line; and
    像素阵列；其中，每一像素阵列分别与对应的扫描线连接；A pixel array; wherein each pixel array is respectively connected to a corresponding scanning line;
    每一像素阵列包括第一像素电路、第二像素电路及连接第一像素电路与第二像素电路的开关电路，通过扫描线控制开关电路的导通，使得第一像素电路与第二像素电路之间进行电荷分享。Each pixel array includes a first pixel circuit, a second pixel circuit, and a switching circuit connecting the first pixel circuit and the second pixel circuit, and the conduction of the switching circuit is controlled by a scanning line, so that the first pixel circuit and the second pixel circuit are connected. Charge sharing.
  16. 如权利要求15所述的液晶显示器，其中，所述第一数据线和所述第二数据线电压极性相反，且第一数据线和第二数据线的电压极性按照预设时间反转。The liquid crystal display of claim 15, wherein the voltage polarities of the first data line and the second data line are opposite, and the voltage polarities of the first data line and the second data line are reversed according to a preset time. .
  17. 如权利要求16所述的液晶显示器，其中，所述第一像素电路或第二像素电路包括存储电容、液晶电容及第一薄膜晶体管；所述存储电容的第一端与所述液晶电容的第一端连接，所述存储电容的第二端接地，所述液晶电容的第二端接地，所述第一薄膜晶体管的栅极与所述扫描线连接，所述第一薄膜晶体管的漏极与所述液晶电容连接，所述第一薄膜晶体管的源极与第一数据线或第二数据线连接。The liquid crystal display of claim 16, wherein the first pixel circuit or the second pixel circuit includes a storage capacitor, a liquid crystal capacitor, and a first thin film transistor; a first end of the storage capacitor and a first One end is connected, the second end of the storage capacitor is grounded, the second end of the liquid crystal capacitor is grounded, the gate of the first thin film transistor is connected to the scan line, and the drain of the first thin film transistor is connected to The liquid crystal capacitor is connected, and the source of the first thin film transistor is connected to the first data line or the second data line.
  18. 如权利要求17所述的液晶显示器，其中，所述开关电路的第一端与第一像素电路的液晶电容的第一端连接，所述开关电路的第二端与第二像素电路的液晶电容的第一端连接；与第一薄膜晶体管连接的扫描线相邻的上一行扫描线，和所述开关电路的受控端连接。The liquid crystal display of claim 17, wherein a first end of the switching circuit is connected to a first end of a liquid crystal capacitor of a first pixel circuit, and a second end of the switching circuit is connected to a liquid crystal capacitor of a second pixel circuit. The first end of the switching circuit is connected to the scanning line of the previous row adjacent to the scanning line connected to the first thin film transistor, and is connected to the controlled end of the switching circuit.
  19. 如权利要求17所述的液晶显示器，其中，在一扫描线为高电平时，与该扫描线相连接的第一薄膜晶体管导通，第一数据线及第二数据线给液晶电容及储存电容进行充放电；与该扫描线相连接的开关电路导通，相邻第一像素电路和第二像素电路进行电荷分享。The liquid crystal display of claim 17, wherein when a scan line is at a high level, the first thin film transistor connected to the scan line is turned on, and the first data line and the second data line are for the liquid crystal capacitor and the storage capacitor. Charge and discharge are performed; the switch circuit connected to the scan line is turned on, and adjacent first pixel circuits and second pixel circuits perform charge sharing.
  20. 如权利要求18所述的液晶显示器，其中，与所述第一数据线连接的第一薄膜晶体管为N沟道MOS管，与所述第二数据线连接的第一薄膜晶体管为P沟道MOS管。 The liquid crystal display of claim 18, wherein the first thin film transistor connected to the first data line is an N-channel MOS transistor, and the first thin film transistor connected to the second data line is a P-channel MOS tube. Ranch
PCT/CN2018/122089 2018-08-01 2018-12-19 Drive device, display device, and liquid crystal display WO2020024530A1 (en)

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