WO2019015021A1 - 一种液晶显示面板及装置 - Google Patents

一种液晶显示面板及装置 Download PDF

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Publication number
WO2019015021A1
WO2019015021A1 PCT/CN2017/099396 CN2017099396W WO2019015021A1 WO 2019015021 A1 WO2019015021 A1 WO 2019015021A1 CN 2017099396 W CN2017099396 W CN 2017099396W WO 2019015021 A1 WO2019015021 A1 WO 2019015021A1
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WO
WIPO (PCT)
Prior art keywords
liquid crystal
crystal display
display panel
switch
data
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PCT/CN2017/099396
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English (en)
French (fr)
Inventor
张先明
Original Assignee
深圳市华星光电半导体显示技术有限公司
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Application filed by 深圳市华星光电半导体显示技术有限公司 filed Critical 深圳市华星光电半导体显示技术有限公司
Priority to US15/576,775 priority Critical patent/US20190027110A1/en
Publication of WO2019015021A1 publication Critical patent/WO2019015021A1/zh

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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
    • G09G3/3696—Generation of voltages supplied to electrode drivers
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3685—Details of drivers for data electrodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3685—Details of drivers for data electrodes
    • G09G3/3688—Details of drivers for data electrodes suitable for active matrices only
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0243—Details of the generation of driving signals
    • G09G2310/0248—Precharge or discharge of column electrodes before or after applying exact column voltages
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0297—Special arrangements with multiplexing or demultiplexing of display data in the drivers for data electrodes, in a pre-processing circuitry delivering display data to said drivers or in the matrix panel, e.g. multiplexing plural data signals to one D/A converter or demultiplexing the D/A converter output to multiple columns
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0204—Compensation of DC component across the pixels in flat panels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • 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
    • G09G3/3614—Control of polarity reversal in general

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a liquid crystal display panel and device.
  • the VAA voltage is used to drive the chip to the source in the panel (Source Driver) provides voltage.
  • the VAA voltage is supplied from a power supply module 11, which is connected to the panel 13 through a flexible circuit board (COF) 12, and the data line 131 is caused to exit the data signal by inputting a VAA voltage to the data line 131.
  • COF flexible circuit board
  • the number of columns of the data line is usually related to the resolution, when the resolution of the panel is fixed, the number of columns of the data line is also fixed.
  • the COF transit is required to input the charge into the panel.
  • Figure 2 shows the normal charging process of a column of data lines.
  • the voltage is converted from a high-level voltage VH to a low-level voltage VL or from a low-level voltage VL to a high-level voltage VH, and the visible charge variation range is large.
  • the drive current that causes the COF is large.
  • An object of the present invention is to provide a liquid crystal display panel and device capable of reducing a driving current.
  • the present invention provides a liquid crystal display panel, including:
  • a charge sharing circuit connected to the data line, wherein the charge sharing circuit is configured to make each data line independent of each other when the data signal is input on the liquid crystal display panel, and when the data signal of the liquid crystal display panel is input, Turning all data lines on, causing charges on the data lines to neutralize each other to reduce the amount of change in charge charge;
  • the charge sharing circuit includes a plurality of first switches, each of which is correspondingly provided with a first switch, an input end of the first switch is connected to an end of a corresponding data line, and outputs of all the first switches are connected together The control end of the first switch is connected to the control signal.
  • the first switch when the liquid crystal display panel inputs a data signal, the first switch is turned off;
  • the first switch When the data signal of the liquid crystal display panel is input, the first switch is closed.
  • the charge sharing circuit further includes a control module, the control module is connected to a control end of the first switch, and the control module is configured to provide the control signal.
  • the first switch is an N-channel field effect transistor, and when the liquid crystal display panel inputs a data signal, the control signal is a low level;
  • the control signal is at a high level.
  • the first switch is a P-channel field effect transistor, and when the liquid crystal display panel inputs a data signal, the control signal is a high level;
  • the control signal When the data signal of the liquid crystal display panel is input, the control signal is at a low level.
  • the invention also provides a liquid crystal display panel comprising:
  • a charge sharing circuit connected to the data line, wherein the charge sharing circuit is configured to make each data line independent of each other when the data signal is input on the liquid crystal display panel, and when the data signal of the liquid crystal display panel is input, All data lines are turned on to neutralize charges on the data lines to reduce the amount of change in charge.
  • the charge sharing circuit includes a plurality of first switches, each of which is correspondingly provided with a first switch, and an input end of the first switch is connected to an end of a corresponding data line, all The outputs of the first switch are connected together, and the control end of the first switch is connected to the control signal.
  • the first switch when the liquid crystal display panel inputs a data signal, the first switch is turned off;
  • the first switch When the data signal of the liquid crystal display panel is input, the first switch is closed.
  • the charge sharing circuit further includes a control module, the control module is connected to a control end of the first switch, and the control module is configured to provide the control signal.
  • the first switch is an N-channel field effect transistor, and when the liquid crystal display panel inputs a data signal, the control signal is a low level;
  • the control signal is at a high level.
  • the first switch is a P-channel field effect transistor, and when the liquid crystal display panel inputs a data signal, the control signal is a high level;
  • the control signal When the data signal of the liquid crystal display panel is input, the control signal is at a low level.
  • the charge sharing circuit includes a plurality of second switches, each of the two adjacent data lines is provided with a second switch, and the input end and the output end of the second switch are respectively corresponding to the corresponding phase The two adjacent data lines are connected, and the control end of the second switch is connected to the control signal.
  • the present invention also provides a liquid crystal display device comprising a liquid crystal display panel, the panel comprising:
  • a charge sharing circuit connected to the data line, wherein the charge sharing circuit is configured to make each data line independent of each other when the data signal is input on the liquid crystal display panel, and when the data signal of the liquid crystal display panel is input, All data lines are turned on to neutralize charges on the data lines to reduce the amount of change in charge.
  • the charge sharing circuit includes a plurality of first switches, each of which is correspondingly provided with a first switch, and an input end of the first switch is connected to an end of a corresponding data line, all of which are The outputs of a switch are connected together, and the control terminal of the first switch is connected to a control signal.
  • the first switch when the liquid crystal display panel inputs a data signal, the first switch is turned off;
  • the first switch When the data signal of the liquid crystal display panel is input, the first switch is closed.
  • the charge sharing circuit further includes a control module, and the control module is connected to a control end of the first switch, and the control module is configured to provide the control signal.
  • the first switch is N a channel field effect transistor, when the liquid crystal display panel inputs a data signal, the control signal is a low level;
  • the control signal is at a high level.
  • the first switch is P a channel FET, when the liquid crystal display panel inputs a data signal, the control signal is at a high level;
  • the control signal When the data signal of the liquid crystal display panel is input, the control signal is at a low level.
  • the charge sharing circuit includes a plurality of second switches, each of the two adjacent data lines is provided with a second switch, and the input end and the output end of the second switch are respectively adjacent to the corresponding ones. Two data lines are connected, and the control end of the second switch is connected to the control signal.
  • Liquid crystal display panel and device of the present invention By adding a charge sharing circuit to the existing panel, when the data signal input of the liquid crystal display panel is completed, the respective data lines are electrically connected to each other to neutralize the charge on the data line and reduce the change of the charging charge. The amount, which in turn reduces the drive current.
  • FIG. 1 is a schematic structural view of a conventional liquid crystal display panel
  • FIG. 3 is a schematic structural view of a liquid crystal display panel according to an embodiment of the present invention.
  • FIG. 4 is a schematic view showing a preferred structure of a liquid crystal display panel according to an embodiment of the present invention.
  • Figure 5 is a waveform diagram of a charging process of the present invention.
  • FIG. 6 is a schematic structural diagram of a liquid crystal display panel according to another embodiment of the present invention.
  • An embodiment of the present invention provides a liquid crystal display panel, as shown in FIG. 3, which includes a plurality of data lines 131, a plurality of scan lines (not shown), and a plurality of pixels defined by the data lines and scan lines. (not shown in the figure).
  • the liquid crystal display panel further includes a charge sharing circuit 20 connected to the data line 131.
  • the charge sharing circuit 20 is configured to enable each of the data lines 131 when the liquid crystal display panel inputs a data signal. Independent of each other and when the data signal input of the liquid crystal display panel is completed, all the data lines 131 are turned on, and the charges on the data lines 131 are neutralized with each other to reduce the amount of change in the charge charge, thereby reducing the drive current.
  • the charge sharing circuit 20 includes a plurality of first switches T1.
  • Each of the data lines 131 is correspondingly provided with a first switch T1.
  • the input end of the first switch T1 and the end of the corresponding data line 131 The connection is performed, wherein the beginning end of each data line 131 is connected to the source driving chip, that is, the end of the data line 131 is an end away from the source driving chip.
  • the outputs of all the first switches T1 are connected together, and the control terminal of each of the first switches T1 is connected to the control signal S1.
  • the first switch T1 When the liquid crystal display panel inputs a data signal, the first switch T1 is turned off, so that the data lines 131 are independent of each other, that is, the data lines 131 are not connected together, thereby facilitating input of independent data signals to the respective data lines 131. .
  • the first switch T1 When the input of the liquid crystal display panel data signal is completed, the first switch T1 is closed, so that the data lines 131 are electrically connected to each other, thereby neutralizing the charge neutralization on the data line 131, that is, the positive and negative charges.
  • the VAA voltage is then input so that the voltage variation range is reduced by half when the VAA voltage is input.
  • the charge sharing circuit further includes a control module 21, and the control module 21 is connected to a control end of all the first switches T1, and the control module 21 is configured to provide the control signal S1, That is, the opening and closing of the first switch T1 is controlled by the control module 21.
  • the first switch T1 is an N-channel FET.
  • the control signal S1 When the liquid crystal display panel inputs a data signal, the control signal S1 is at a low level; when the liquid crystal display panel data signal is input, the The control signal S1 is at a high level.
  • the first switch T1 is a P-channel field effect transistor, and when the liquid crystal display panel inputs a data signal, the control signal S1 is at a high level; when the liquid crystal display panel data signal is input, the The control signal S1 is at a low level.
  • the charge sharing circuit includes a plurality of second switches T2, and each adjacent two data lines 131 is provided with a second switch T2, and the input end of the second switch T2 And the output end is respectively connected with the corresponding adjacent two data lines.
  • the input end of the leftmost second switch T2 is connected to the first data line
  • the output end of the leftmost second switch T2 is connected to the second data line.
  • the control end of the second switch T2 is connected to the control signal S1.
  • the charge sharing circuit can also include a control module 21, the control module 21 is connected to the control end of the second switch T2, and the control module is configured to provide the control signal S1, that is, through the The control module 21 controls the opening and closing of the second switch T1.
  • the second switch T2 When the data signal is input to the liquid crystal display panel, the second switch T2 is turned off, so that the data lines are independent of each other, that is, not connected together, thereby inputting independent data signals to the respective data lines 131.
  • the second switch T2 When the data signal input of the liquid crystal display panel is completed, the second switch T2 is closed, so that the data lines are electrically connected to each other, so that the charge on the data line is neutralized, that is, the positive and negative charges are neutralized, and then input. At the VAA voltage, the charging range is reduced.
  • the second switch T2 may be an N-channel FET or a P-channel FET. The specific working principle is the same as that of the previous embodiment, and details are not described herein again.
  • the embodiment of the invention further provides a liquid crystal display device comprising any one of the above liquid crystal display panels.
  • the respective data lines are electrically connected to each other to neutralize the data line.
  • the charge reduces the amount of change in charge charge, which in turn reduces the drive current.

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

Abstract

一种液晶显示面板及装置，液晶显示面板包括：多条数据线（131）；电荷分享电路（20），与数据线连接（131），电荷分享电路（20）用于在液晶显示面板输入数据信号时，使各条数据线（131）之间相互独立以及在液晶显示面板的数据信号输入完毕时，将全部数据线（131）导通，使数据线（131）上的电荷相互中和，以减小充电电荷的变化量。

Description

一种液晶显示面板及装置 技术领域
本发明涉及显示技术领域，特别是涉及一种液晶显示面板及装置。
 背景技术
在面板驱动中，VAA电压用于向面板中的源驱动芯片（Source Driver）提供电压。如图1所示，VAA电压由电源模块11提供，该电源模块11通过柔性电路板（COF）12与面板13连接，通过向数据线131输入VAA电压，使数据线131退出数据信号。
由于通常数据线的列数和分辨率相关，当面板的分辨率固定时，数据线的列数也是固定的。在向数据线输入VAA电压时，需要COF的中转，才能将电荷输入至面板内。
图2所示为一列数据线正常的充电过程，电压由高电平电压VH变换为低电平电压VL或者由低电平电压VL变换为高电平电压VH，可见电荷变化范围较大，从而导致COF的驱动电流较大。
因此，有必要提供一种液晶显示面板及装置，以解决现有技术所存在的问题。
 技术问题
本发明的目的在于提供一种液晶显示面板及装置，能够减小驱动电流。
 技术解决方案
为解决上述技术问题，本发明提供一种液晶显示面板，其包括：
多条数据线、多条扫描线以及由所述数据线和所述扫描线限定的多个像素；
电荷分享电路，与所述数据线连接，所述电荷分享电路用于在液晶显示面板输入数据信号时，使各条数据线之间相互独立以及在所述液晶显示面板的数据信号输入完毕时，将全部数据线导通，使所述数据线上的电荷相互中和，以减小充电电荷的变化量；
所述电荷分享电路包括多个第一开关，每条数据线对应设置一第一开关，所述第一开关的输入端与对应的数据线的末端连接，所有第一开关的输出端连接在一起，所述第一开关的控制端接入控制信号。
在本发明的液晶显示面板中，当所述液晶显示面板输入数据信号时，所述第一开关断开；
当所述液晶显示面板的数据信号输入完毕时，所述第一开关闭合。
在本发明的液晶显示面板中，所述电荷分享电路还包括控制模块，所述控制模块与所述第一开关的控制端连接，所述控制模块用于提供所述控制信号。
在本发明的液晶显示面板中，所述第一开关为N沟道场效应管，当所述液晶显示面板输入数据信号时，所述控制信号为低电平；
当所述液晶显示面板的数据信号输入完毕时，所述控制信号为高电平。
在本发明的液晶显示面板中，所述第一开关为P沟道场效应管，当所述液晶显示面板输入数据信号时，所述控制信号为高电平；
当所述液晶显示面板的数据信号输入完毕时，所述控制信号为低电平。
本发明还提供一种液晶显示面板，其包括：
多条数据线；
电荷分享电路，与所述数据线连接，所述电荷分享电路用于在液晶显示面板输入数据信号时，使各条数据线之间相互独立以及在所述液晶显示面板的数据信号输入完毕时，将全部数据线导通，使所述数据线上的电荷相互中和，以减小充电电荷的变化量。
在本发明的液晶显示面板中，所述电荷分享电路包括多个第一开关，每条数据线对应设置一第一开关，所述第一开关的输入端与对应的数据线的末端连接，所有第一开关的输出端连接在一起，所述第一开关的控制端接入控制信号。
在本发明的液晶显示面板中，当所述液晶显示面板输入数据信号时，所述第一开关断开；
当所述液晶显示面板的数据信号输入完毕时，所述第一开关闭合。
在本发明的液晶显示面板中，所述电荷分享电路还包括控制模块，所述控制模块与所述第一开关的控制端连接，所述控制模块用于提供所述控制信号。
在本发明的液晶显示面板中，所述第一开关为N沟道场效应管，当所述液晶显示面板输入数据信号时，所述控制信号为低电平；
当所述液晶显示面板的数据信号输入完毕时，所述控制信号为高电平。
在本发明的液晶显示面板中，所述第一开关为P沟道场效应管，当所述液晶显示面板输入数据信号时，所述控制信号为高电平；
当所述液晶显示面板的数据信号输入完毕时，所述控制信号为低电平。
在本发明的液晶显示面板中，所述电荷分享电路包括多个第二开关，每相邻两条数据线设置一第二开关，所述第二开关的输入端和输出端分别与对应的相邻两条数据线连接，所述第二开关的控制端接入控制信号。
本发明还提供一种液晶显示装置，其包括液晶显示面板，面板包括：
多条数据线；
电荷分享电路，与所述数据线连接，所述电荷分享电路用于在液晶显示面板输入数据信号时，使各条数据线之间相互独立以及在所述液晶显示面板的数据信号输入完毕时，将全部数据线导通，使所述数据线上的电荷相互中和，以减小充电电荷的变化量。
在本发明液晶显示装置中，所述电荷分享电路包括多个第一开关，每条数据线对应设置一第一开关，所述第一开关的输入端与对应的数据线的末端连接，所有第一开关的输出端连接在一起，所述第一开关的控制端接入控制信号。
在本发明液晶显示装置中，当所述液晶显示面板输入数据信号时，所述第一开关断开；
当所述液晶显示面板的数据信号输入完毕时，所述第一开关闭合。
在本发明液晶显示装置中，所述电荷分享电路还包括控制模块，所述控制模块与所述第一开关的控制端连接，所述控制模块用于提供所述控制信号。
在本发明液晶显示装置中，所述第一开关为 N 沟道场效应管，当所述液晶显示面板输入数据信号时，所述控制信号为低电平；
当所述液晶显示面板的数据信号输入完毕时，所述控制信号为高电平。
在本发明液晶显示装置中，所述第一开关为 P 沟道场效应管，当所述液晶显示面板输入数据信号时，所述控制信号为高电平；
当所述液晶显示面板的数据信号输入完毕时，所述控制信号为低电平。
在本发明液晶显示装置中，所述电荷分享电路包括多个第二开关，每相邻两条数据线设置一第二开关，所述第二开关的输入端和输出端分别与对应的相邻两条数据线连接，所述第二开关的控制端接入控制信号。
 有益效果
本发明的液晶显示面板及装置， 通过在现有的面板上增加电荷分享电路，从而在液晶显示面板的数据信号输入完毕时，使各条数据线之间相互导通，以中和数据线上的电荷，减小充电电荷的变化量，进而减小了驱动电流。
附图说明
图1为现有的液晶显示面板的结构示意图；
图2为现有充电过程的波形图；
图3为本发明一实施例的液晶显示面板的结构示意图；
图4为本发明一实施例液晶显示面板的优选结构示意图；
图5为本发明充电过程的波形图；
图6为本发明另一实施例的液晶显示面板的结构示意图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如「上」、「下」、「前」、「后」、「左」、「右」、「内」、「外」、「侧面」等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。在图中，结构相似的单元是以相同标号表示。
本发明实施例提供一种液晶显示面板，如图3所示，其包括多条数据线131、多条扫描线（图中未示出）以及由所述数据线和扫描线限定的多个像素（图中未示出）。所述液晶显示面板还包括电荷分享电路20，该电荷分享电路20与所述数据线131连接，所述电荷分享电路20用于在液晶显示面板输入数据信号时，使各条数据线131之间相互独立以及在液晶显示面板的数据信号输入完毕时，将全部数据线131导通，使所述数据线131上的电荷相互中和，以减小充电电荷的变化量，进而减小驱动电流。
在一实施例中，所述电荷分享电路20包括多个第一开关T1，每条数据线131对应设置一第一开关T1，所述第一开关T1的输入端与对应的数据线131的末端连接，其中每条数据线131的起始端与源驱动芯片连接，也即该数据线131的末端为远离源驱动芯片的一端。所有第一开关T1的输出端连接在一起，每个第一开关T1的控制端接入控制信号S1。
当液晶显示面板输入数据信号时，所述第一开关T1断开，使得各数据线131相互独立，也即各数据线131未连接在一起，从而便于向各条数据线131输入独立的数据信号。
当液晶显示面板数据信号输入完毕时，所述第一开关T1闭合，以使各数据线131相互导通，从而使数据线131上的电荷中和，也即正电荷和负电荷进行中和。之后再输入VAA电压，从而使得在输入VAA电压时，电压变化范围减小一半。
也即在液晶显示面板输入数据信号时，向各条数据线131输入独立的数据信号；在液晶显示面板的数据信号输入完毕时，将全部数据线导通后，输入预设电源电压，该预设电压为VAA。
如图4所示，所述电荷分享电路还包括控制模块21，所述控制模块21与所有所述第一开关T1的控制端连接，所述控制模块21用于提供所述控制信号S1，也即通过所述控制模块21控制所述第一开关T1的断开和闭合。
在一实施方式中，所述第一开关T1为N沟道场效应管，当液晶显示面板输入数据信号时，所述控制信号S1为低电平；当液晶显示面板数据信号输入完毕时，所述控制信号S1为高电平。
在另一实施方式中，所述第一开关T1为P沟道场效应管，当液晶显示面板输入数据信号时，所述控制信号S1为高电平；当液晶显示面板数据信号输入完毕时，所述控制信号S1为低电平。
如图5所示，在面板充电完成后，使各数据线之间导通，这个时候COF不输出，保持高阻抗状态。那么电荷就会处于VH和VL的中间位置附近，那么下一次充电时，就会从V0附近开始充电，也即电压从VH变换为V0或者V0变换为VH（也即如实线部分所示，虚线为现有充电过程的波形图），因此对正负极性的充电电荷的变化量都会减小一般左右，能够有效地减小COF提供的驱动电流。
且根据电容能量1/2C△V2，由于△V减小一半，那么由寄生电容产生的损耗会减少至1/4，从而有效地减小了VAA电流，同时降低了在较高的分辨率和刷新率下COF的温度。
在另一实施例中，如图6所示，所述电荷分享电路包括多个第二开关T2，每相邻两条数据线131设置一第二开关T2，所述第二开关T2的输入端和输出端分别连接对应的相邻两条数据线。比如最左侧的第二开关T2的输入端连接第一条数据线，最左侧的第二开关T2的输出端连接第二条数据线。所述第二开关T2的控制端接入控制信号S1。
可以理解的，所述电荷分享电路也可包括控制模块21，所述控制模块21与所述第二开关T2的控制端连接，所述控制模块用于提供所述控制信号S1，也即通过所述控制模块21控制所述第二开关T1的断开和闭合。
在液晶显示面板输入数据信号时，所述第二开关T2断开，使得各数据线相互独立，也即未连接在一起，从而向各条数据线131输入独立的数据信号。
在液晶显示面板数据信号输入完毕时，所述第二开关T2闭合，以使各数据线相互导通，从而使数据线上的电荷中和，也即正电荷和负电荷中和，进而在输入VAA电压时，充电范围减小一般。所述第二开关T2可以为N沟道场效应管或者P沟道场效应管。具体工作原理与上一实施例相同，在此不再赘述。
本发明实施例还提供一种液晶显示装置，其包括上述任意一种液晶显示面板。
本发明的液晶显示面板及装置，通过在现有的面板上增加电荷分享电路，从而在液晶显示面板的数据信号输入完毕时，使各条数据线之间相互导通，以中和数据线上的电荷，减小充电电荷的变化量，进而减小了驱动电流。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。

Claims (19)

  1. 一种液晶显示面板，其包括：多条数据线、多条扫描线以及由所述数据线和所述扫描线限定的多个像素；电荷分享电路，与所述数据线连接，所述电荷分享电路用于在液晶显示面板输入数据信号时，使各条数据线之间相互独立以及在所述液晶显示面板的数据信号输入完毕时，将全部数据线导通，使所述数据线上的电荷相互中和，以减小充电电荷的变化量； 所述电荷分享电路包括多个第一开关，每条数据线对应设置一第一开关，所述第一开关的输入端与对应的数据线的末端连接，所有第一开关的输出端连接在一起，所述第一开关的控制端接入控制信号。
  2. 如权利要求1所述的液晶显示面板，其中当所述液晶显示面板输入数据信号时，所述第一开关断开；当所述液晶显示面板的数据信号输入完毕时，所述第一开关闭合。
  3. 如权利要求1所述的液晶显示面板，其中所述电荷分享电路还包括控制模块，所述控制模块与所述第一开关的控制端连接，所述控制模块用于提供所述控制信号。
  4. 如权利要求1所述的液晶显示面板，其中所述第一开关为N沟道场效应管，当所述液晶显示面板输入数据信号时，所述控制信号为低电平；
    当所述液晶显示面板的数据信号输入完毕时，所述控制信号为高电平。
  5. 如权利要求1所述的液晶显示面板，其中所述第一开关为P沟道场效应管，当所述液晶显示面板输入数据信号时，所述控制信号为高电平；
    当所述液晶显示面板的数据信号输入完毕时，所述控制信号为低电平。
  6. 一种液晶显示面板，其包括：多条数据线；
    电荷分享电路，与所述数据线连接，所述电荷分享电路用于在液晶显示面板输入数据信号时，使各条数据线之间相互独立以及在所述液晶显示面板的数据信号输入完毕时，将全部数据线导通，使所述数据线上的电荷相互中和，以减小充电电荷的变化量。
  7. 如权利要求6所述的液晶显示面板，其中所述电荷分享电路包括多个第一开关，每条数据线对应设置一第一开关，所述第一开关的输入端与对应的数据线的末端连接，所有第一开关的输出端连接在一起，所述第一开关的控制端接入控制信号。
  8. 如权利要求7所述的液晶显示面板，其中当所述液晶显示面板输入数据信号时，所述第一开关断开；当所述液晶显示面板的数据信号输入完毕时，所述第一开关闭合。
  9. 如权利要求7所述的液晶显示面板，其中所述电荷分享电路还包括控制模块，所述控制模块与所述第一开关的控制端连接，所述控制模块用于提供所述控制信号。
  10. 如权利要求7所述的液晶显示面板，其中所述第一开关为N沟道场效应管，当所述液晶显示面板输入数据信号时，所述控制信号为低电平；当所述液晶显示面板的数据信号输入完毕时，所述控制信号为高电平。
  11. 如权利要求7所述的液晶显示面板，其中所述第一开关为P沟道场效应管，当所述液晶显示面板输入数据信号时，所述控制信号为高电平；
    当所述液晶显示面板的数据信号输入完毕时，所述控制信号为低电平。
  12. 如权利要求6所述的液晶显示面板，其中所述电荷分享电路包括多个第二开关，每相邻两条数据线设置一第二开关，所述第二开关的输入端和输出端分别与对应的相邻两条数据线连接，所述第二开关的控制端接入控制信号。
  13. 一种液晶显示装置，其包括液晶显示面板，其包括：多条数据线； 电荷分享电路，与所述数据线连接，所述电荷分享电路用于在液晶显示面板输入数据信号时，使各条数据线之间相互独立以及在所述液晶显示面板的数据信号输入完毕时，将全部数据线导通，使所述数据线上的电荷相互中和，以减小充电电荷的变化量。
  14. 如权利要求13所述的液晶显示装置，其中所述电荷分享电路包括多个第一开关，每条数据线对应设置一第一开关，所述第一开关的输入端与对应的数据线的末端连接，所有第一开关的输出端连接在一起，所述第一开关的控制端接入控制信号。
  15. 如权利要求14所述的液晶显示装置，其中当所述液晶显示面板输入数据信号时，所述第一开关断开；
    当所述液晶显示面板的数据信号输入完毕时，所述第一开关闭合。
  16. 如权利要求14所述的液晶显示装置，其中所述电荷分享电路还包括控制模块，所述控制模块与所述第一开关的控制端连接，所述控制模块用于提供所述控制信号。
  17. 如权利要求14所述的液晶显示装置，其中所述第一开关为N沟道场效应管，当所述液晶显示面板输入数据信号时，所述控制信号为低电平；
    当所述液晶显示面板的数据信号输入完毕时，所述控制信号为高电平。
  18. 如权利要求14所述的液晶显示装置，其中 所述第一开关为P沟道场效应管，当所述液晶显示面板输入数据信号时，所述控制信号为高电平；
    当所述液晶显示面板的数据信号输入完毕时，所述控制信号为低电平。
  19. 如权利要求13所述的液晶显示装置，其中 所述电荷分享电路包括多个第二开关，每相邻两条数据线设置一第二开关，所述第二开关的输入端和输出端分别与对应的相邻两条数据线连接，所述第二开关的控制端接入控制信号。
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