WO2020244057A1 - 驱动电路、显示面板及显示装置 - Google Patents
驱动电路、显示面板及显示装置 Download PDFInfo
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- WO2020244057A1 WO2020244057A1 PCT/CN2019/101479 CN2019101479W WO2020244057A1 WO 2020244057 A1 WO2020244057 A1 WO 2020244057A1 CN 2019101479 W CN2019101479 W CN 2019101479W WO 2020244057 A1 WO2020244057 A1 WO 2020244057A1
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- Prior art keywords
- driving
- module
- voltage
- display panel
- drive
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—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
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3614—Control of polarity reversal in general
-
- 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
Definitions
- the present invention relates to the field of display technology, in particular to a driving circuit, a display panel and a display device.
- TFT Thin Film Transistor
- TFT display is the mainstream display device on various notebook computers and desktop computers. Each liquid crystal pixel on this type of display is driven by a thin film transistor integrated behind the pixel, so TFT display is also a type Active matrix liquid crystal display device. It is one of the best LCD color displays. TFT displays have the advantages of high responsiveness, high brightness, and high contrast. At the same time, TFT screens are also commonly used in mid-to-high-end color screen phones, divided into 65536 There are three colors, 160,000 colors, and 16 million colors, and its display effect is very good.
- TFT-LCD Thin Film Transistor Liquid Crystal Display
- the present invention proposes a driving circuit, a display panel and a display device to solve the above problems.
- the present application provides a driving circuit applied to a display panel, and the driving circuit includes:
- the first driving module is configured to receive the input first driving voltage to output the second driving voltage to drive the switch device in the display area of the display panel;
- the second driving module is configured to receive the input third driving voltage to output the fourth driving voltage to drive the non-display area switching device of the display panel;
- the first driving module is electrically connected to the second driving module, and the second driving voltage and the fourth driving voltage are equal in magnitude and opposite in direction.
- the drive circuit further includes a voltage stabilizing module, the first drive module is connected to the second drive module through the voltage stabilizing module, and the voltage stabilizing module is used to control the first drive module and the The voltage between the second driving module reduces the voltage between the first driving module and the second driving module.
- the voltage stabilizing module is a resistor.
- the first driving module further includes a first control module, and the first control module is used to generate a first driving signal and adjust the voltage across the first driving module so that the second driving voltage is equal to
- the fourth driving voltages are equal in magnitude and opposite in direction.
- the first control module is a current source or a resistor.
- the second drive circuit further includes a second control module, the second control module is used to generate a second drive signal, adjust the voltage across the second drive module, so that the second drive voltage
- the fourth driving voltages are equal in magnitude and opposite in direction.
- the driving circuit further includes:
- the third control module is located in the first drive module, and the third control module is used to generate a third drive signal and adjust the voltage across the first drive module so that the second drive voltage and the The fourth driving voltages are equal in magnitude and opposite in direction;
- the fourth control module is located in the second drive module.
- the fourth control module is used to generate a fourth drive signal and adjust the voltage across the first drive module so that the second drive voltage and the The fourth driving voltages are equal in magnitude and opposite in direction.
- the driving circuit further includes a capacitor, and the capacitor is used to store electricity so that the display panel switch device maintains a voltage when the display panel switch device is turned off.
- the present application provides a display panel including the driving circuit described in any one of the above.
- the driving circuit is applied to a display panel, and the driving circuit includes:
- the first driving module is configured to receive the input first driving voltage to output the second driving voltage to drive the switch device in the display area of the display panel;
- the second driving module is configured to receive the input third driving voltage to output the fourth driving voltage to drive the non-display area switching device of the display panel;
- the first driving module is electrically connected to the second driving module, and the second driving voltage and the fourth driving voltage are equal in magnitude and opposite in direction.
- the drive circuit further includes a voltage stabilizing module, the first drive module is connected to the second drive module through the voltage stabilizing module, and the voltage stabilizing module is used to control the first drive module and the The voltage between the second driving module reduces the voltage between the first driving module and the second driving module.
- the voltage stabilizing module is a resistor.
- the first driving module further includes a first control module, and the first control module is used to generate a first driving signal and adjust the voltage across the first driving module so that the second driving voltage is equal to
- the fourth driving voltages are equal in magnitude and opposite in direction.
- the first control module is a current source or a resistor.
- the second drive circuit further includes a second control module, the second control module is used to generate a second drive signal, adjust the voltage across the second drive module, so that the second drive voltage
- the fourth driving voltages are equal in magnitude and opposite in direction.
- the driving circuit further includes:
- the third control module is located in the first drive module, and the third control module is used to generate a third drive signal and adjust the voltage across the first drive module so that the second drive voltage and the The fourth driving voltages are equal in magnitude and opposite in direction;
- the fourth control module is located in the second drive module.
- the fourth control module is used to generate a fourth drive signal and adjust the voltage across the first drive module so that the second drive voltage and the The fourth driving voltages are equal in magnitude and opposite in direction.
- the driving circuit further includes a capacitor, and the capacitor is used to store electricity so that the display panel switch device maintains a voltage when the display panel switch device is turned off.
- the present application provides a display device including the display panel as described above.
- the driving circuit is applied to a display panel, and the driving circuit includes:
- the first driving module is configured to receive the input first driving voltage to output the second driving voltage to drive the switch device in the display area of the display panel;
- the second driving module is configured to receive the input third driving voltage to output the fourth driving voltage to drive the non-display area switching device of the display panel;
- the first driving module is electrically connected to the second driving module, and the second driving voltage and the fourth driving voltage are equal in magnitude and opposite in direction.
- the drive circuit further includes a voltage stabilizing module, the first drive module is connected to the second drive module through the voltage stabilizing module, and the voltage stabilizing module is used to control the first drive module and the The voltage between the second driving module reduces the voltage between the first driving module and the second driving module.
- the present invention adjusts the voltage of the driving circuit between the display area and the non-display area of the display panel so that the voltage difference between the two ends of the driving circuit is zero, thereby reducing the leakage current of the driving circuit and reducing the display unevenness of the display panel.
- FIG. 1 is a schematic diagram of an embodiment of a driving circuit provided by the present invention
- FIG. 2 is a schematic diagram of another embodiment of the driving circuit provided by the present invention.
- FIG. 3 is a schematic diagram of another embodiment of the driving circuit provided by the present invention.
- FIG. 4 is a schematic diagram of another embodiment of the driving circuit provided by the present invention.
- the present application provides a driving circuit applied to the display panel, as shown in FIG.
- a schematic diagram of an embodiment of a driving circuit provided by the present invention, the driving circuit includes:
- the first driving module 10 is configured to receive an input first driving voltage to output a second driving voltage to drive the display area switch device of the display panel;
- the second driving module 11 is configured to receive the input third driving voltage to output the fourth driving voltage to drive the non-display area switching devices of the display panel;
- the first driving module 10 is electrically connected to the second driving module 11, and the second driving voltage and the fourth driving voltage are equal in magnitude and opposite in direction.
- the driving circuit provided by the present application adjusts the voltage of the driving circuit between the display area and the non-display area of the display panel so that the voltage difference between the two ends of the driving circuit is zero, thereby reducing the leakage current of the driving circuit and reducing the uneven display of the display panel. phenomenon.
- the drive circuit may further include a voltage stabilizing module 12, the first drive module 10 is connected to the second drive module 11 through the voltage stabilizing module 12, and the voltage stabilizing module 12 is used to control the first The voltage difference between a driving module 10 and a second driving module 11. If there is a voltage difference between the first driving module 10 and the second driving module 11, the voltage difference is adjusted by the voltage stabilizing module 12, so that the voltage difference between the first driving module 10 and the second driving module 11 The voltage difference is reduced to zero, that is, there is no voltage difference between the first driving module 10 and the second driving module 11.
- the voltage stabilizing module 12 may be a resistor. At this time, if there is a voltage difference between the first driving module 10 and the second driving module 11, the voltage difference is The voltage stabilizing module 12 between the first driving module 10 and the second driving module 11 is a resistor.
- the resistor may be a variable resistor, that is, the resistance of the resistor changes with the change of the voltage difference between the first driving module 10 and the second driving module 11, so as to better adjust the first driving module 10 and The voltage difference between the second driving modules 11.
- the first driving module 10 may further include a first control module 101, and the first control module 101 and The first drive module 10 is electrically connected.
- the first control module 101 is used to generate a first drive signal to drive the first drive module 10, adjust the voltage across the first drive module, and the first drive module 10 generates a second drive voltage to drive Switch devices in the display area of the display panel.
- the first driving signal generated by the first control module 101 makes the second driving voltage and the fourth driving voltage have the same voltage magnitude and opposite directions.
- the second driving module 11 may further include a second control module 111. Electrically connected to the second driving module 11, the second control module 111 is used to generate a second driving signal to drive the second driving module 11, adjust the voltage across the second driving module, and the second driving module 11 to generate a fourth driving voltage to Drive the switching device of the non-display area of the display panel.
- the second driving signal generated by the second control module 111 makes the fourth driving voltage and the second driving voltage equal in magnitude and opposite in direction, that is, there is no voltage difference between the first driving module 10 and the second driving module 11.
- the first control module 101 may be a first current source
- the second control module 111 may be a second current source
- the current magnitude and direction of the first current source and the second current source may be different. different.
- the driving circuit may further include:
- the fourth control module 112 is located in the second drive module 11, the fourth control module 112 is electrically connected to the second control module 11, and the fourth control module 112 is used to generate a fourth drive signal.
- the drive signal adjusts the voltage across the second drive module 11, so that the voltage of the second drive signal and the fourth drive voltage are equal and opposite, that is, there is no voltage difference between the first drive module 10 and the second drive module 11 .
- the third control module may be a third current source
- the fourth control module may also be a fourth current source.
- the magnitude and direction of the current of the third current source and the fourth current source may be different.
- the driving circuit may further include a storage capacitor, which is used to store electricity when the display panel switching device is turned on, so that the display panel switching device is turned off Can rely on the power stored in the storage capacitor to maintain voltage stability.
- the present invention also provides a display panel, which includes the driving circuit as described above.
- the display panel provided by the present invention adjusts the voltage of the driving circuit between the display area and the non-display area of the display panel, so that the voltage difference between the two ends of the driving circuit is zero, thereby reducing the leakage current of the driving circuit and reducing the uneven display of the display panel. phenomenon.
- a display panel which includes the above driving circuit.
- the working principle of the display panel provided in this embodiment is consistent with the working principle of the aforementioned driving circuit embodiment.
- the present invention also provides a display device, which includes the display panel as described above.
- the display device provided by the present invention adjusts the voltage of the drive circuit between the display area and the non-display area of the display panel in the display device, so that the voltage difference between the two ends of the drive circuit is zero, thereby reducing the leakage current of the drive circuit and reducing the display of the display panel. Uneven phenomenon.
- a display device which includes the above display panel.
- the working principle of the display device provided in this embodiment is consistent with the working principle of the foregoing display panel embodiment.
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- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
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- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
一种驱动电路、显示面板及显示装置,其中该驱动电路包括:第一驱动模块(10),以输出第二驱动电压驱动显示面板显示区开关器件;第二驱动模块(11),以输出第四驱动电压驱动显示面板非显示区开关器件;所述第二驱动电压与所述第四驱动电压大小相等,方向相反。本申请减小驱动电路的漏电流,降低显示面板显示不均的现象。
Description
本发明涉及显示技术领域,尤其涉及一种驱动电路、显示面板及显示装置。
TFT(Thin Film Transistor)是薄膜晶体管的缩写。TFT式显示屏是各类笔记本电脑和台式机上的主流显示设备,该类显示屏上的每个液晶像素点都是由集成在像素点后面的薄膜晶体管来驱动,因此TFT式显示屏也是一类有源矩阵液晶显示设备。是最好的LCD彩色显示器之一,TFT式显示器具有高响应度、高亮度、高对比度等优点。同时,TFT式屏幕也普遍应用于中高端彩屏手机中,分65536
色、16 万色,1600万色三种,其显示效果非常出色。
液晶显示器上的每一液晶像素点都是由集成在其后的薄膜晶体管来驱动,TFT-LCD(薄膜晶体管液晶显示器)是多数液晶显示器的一种。但是现有技术下的显示面板中,由于TFT会产生漏电现象,会使得显示面板显示不均。
本发明针对现有技术下的TFT显示面板漏电流过大,使得显示面板显示不均的问题,提出一种驱动电路、显示面板及显示装置,以解决上述问题。
第一方面,本申请提供一种驱动电路,应用于显示面板,所述驱动电路包括:
第一驱动模块,用于接收输入的第一驱动电压,以输出第二驱动电压驱动显示面板显示区开关器件;
第二驱动模块,用于接收输入的第三驱动电压,以输出第四驱动电压驱动显示面板非显示区开关器件;
其中,所述第一驱动模块与所述第二驱动模块电性连接,所述第二驱动电压与所述第四驱动电压大小相等,方向相反。
进一步的,所述驱动电路还包括稳压模块,所述第一驱动模块通过所述稳压模块连接所述第二驱动模块,所述稳压模块用于控制所述第一驱动模块和所述第二驱动模块之间的电压,使得所述第一驱动模块和所述第二驱动模块之间的电压降低。
进一步的,所述稳压模块为电阻。
进一步的,所述第一驱动模块还包括第一控制模块,所述第一控制模块用于产生第一驱动信号,调节所述第一驱动模块两端的电压,以使得所述第二驱动电压与所述第四驱动电压大小相等,方向相反。
进一步的,所述第一控制模块为电流源或电阻。
进一步的,所述第二驱动电路还包括第二控制模块,所述第二控制模块用于产生第二驱动信号,调节所述第二驱动模块两端的电压,以使得所述第二驱动电压于所述第四驱动电压大小相等,方向相反。
进一步的,所述驱动电路还包括:
第三控制模块,位于所述第一驱动模块内,所述第三控制模块用于产生第三驱动信号,调节所述第一驱动模块两端的电压,以使得所述第二驱动电压与所述第四驱动电压大小相等,方向相反;
第四控制模块,位于所述第二驱动模块内,所述第四控制模块用于产生第四驱动信号,调节所述第一驱动模块两端的电压,以使得所述第二驱动电压与所述第四驱动电压大小相等,方向相反。
进一步的,所述驱动电路还包括电容,所述电容用于存储电量,使得显示面板开关器件在关闭时维持电压。
第二方面,本申请提供一种显示面板,所述显示面板包括如上任一项所述的驱动电路。
进一步的,所述驱动电路应用于显示面板,所述驱动电路包括:
第一驱动模块,用于接收输入的第一驱动电压,以输出第二驱动电压驱动显示面板显示区开关器件;
第二驱动模块,用于接收输入的第三驱动电压,以输出第四驱动电压驱动显示面板非显示区开关器件;
其中,所述第一驱动模块与所述第二驱动模块电性连接,所述第二驱动电压与所述第四驱动电压大小相等,方向相反。
进一步的,所述驱动电路还包括稳压模块,所述第一驱动模块通过所述稳压模块连接所述第二驱动模块,所述稳压模块用于控制所述第一驱动模块和所述第二驱动模块之间的电压,使得所述第一驱动模块和所述第二驱动模块之间的电压降低。
进一步的,所述稳压模块为电阻。
进一步的,所述第一驱动模块还包括第一控制模块,所述第一控制模块用于产生第一驱动信号,调节所述第一驱动模块两端的电压,以使得所述第二驱动电压与所述第四驱动电压大小相等,方向相反。
进一步的,所述第一控制模块为电流源或电阻。
进一步的,所述第二驱动电路还包括第二控制模块,所述第二控制模块用于产生第二驱动信号,调节所述第二驱动模块两端的电压,以使得所述第二驱动电压于所述第四驱动电压大小相等,方向相反。
进一步的,所述驱动电路还包括:
第三控制模块,位于所述第一驱动模块内,所述第三控制模块用于产生第三驱动信号,调节所述第一驱动模块两端的电压,以使得所述第二驱动电压与所述第四驱动电压大小相等,方向相反;
第四控制模块,位于所述第二驱动模块内,所述第四控制模块用于产生第四驱动信号,调节所述第一驱动模块两端的电压,以使得所述第二驱动电压与所述第四驱动电压大小相等,方向相反。
进一步的,所述驱动电路还包括电容,所述电容用于存储电量,使得显示面板开关器件在关闭时维持电压。
第三方面,本申请提供一种显示装置,所述显示装置包括如上所述的显示面板。
进一步的,所述驱动电路,应用于显示面板,所述驱动电路包括:
第一驱动模块,用于接收输入的第一驱动电压,以输出第二驱动电压驱动显示面板显示区开关器件;
第二驱动模块,用于接收输入的第三驱动电压,以输出第四驱动电压驱动显示面板非显示区开关器件;
其中,所述第一驱动模块与所述第二驱动模块电性连接,所述第二驱动电压与所述第四驱动电压大小相等,方向相反。
进一步的,所述驱动电路还包括稳压模块,所述第一驱动模块通过所述稳压模块连接所述第二驱动模块,所述稳压模块用于控制所述第一驱动模块和所述第二驱动模块之间的电压,使得所述第一驱动模块和所述第二驱动模块之间的电压降低。
有益效果:本发明通过调节显示面板显示区与非显示区之间驱动电路的电压,使得驱动电路两端电压差为零,从而减小驱动电路的漏电流,降低显示面板显示不均的现象。
为了更清楚地说明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介绍,显而易见地,下面描述中的附图仅仅是发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1为本发明提供的驱动电路一实施例示意图;
图2为本发明提供的驱动电路另一实施例示意图;
图3为本发明提供的驱动电路另一实施例示意图;
图4为本发明提供的驱动电路另一实施例示意图。
以下各实施例的说明是参考附加的图示,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,结构相似的单元是用以相同标号表示。
附图和说明被认为在本质上是示出性的,而不是限制性的。在图中,结构相似的单元是用以相同标号表示。另外,为了理解和便于描述,附图中示出的每个组件的尺寸和厚度都是任意示出的,但是本发明不限于此。
在附图中,为了清晰起见,夸大了层、膜、面板、区域等的厚度。在附图中,为了理解方便和便于描述,夸大了一些层和区域的厚度。需要说明的是,当例如层、膜、区域或基底的组件被称作“在”另一组件“上”时。所述组件可以直接在所述另一组件上,或者也可以存在中间组件。
另外,在说明书中,除非明确地描述为相反的,否则词语“包括”将被理解为意指包括所述组件,但是不排除任何其他组件。此外在说明书中,“在……上”意指位于目标组件上方或者下方,而不意指必须位于基于重力方向的顶部上。
为更进一步阐述本发明为达成预定发明所采取的技术手段及功效,以下结合附图及较佳实施例,对依据本发明提出的驱动电路、显示面板及显示装置,其具体实施方式、结构、特征及其功效,详细说明如下。
现有技术下的TFT显示面板,TFT漏电现象严重,使得TFT显示面板显示不均,为了解决这个问题,本申请提供一种驱动电路,该驱动电路应用于显示面板,如图1所示,为本发明提供的驱动电路一实施例示意图,该驱动电路包括:
第一驱动模块10,用于接收输入的第一驱动电压,以输出第二驱动电压驱动显示面板显示区开关器件;
第二驱动模块11,用于接收输入的第三驱动电压,以输出第四驱动电压驱动显示面板非显示区开关器件;
其中,所述第一驱动模块10与所述第二驱动模块11电性连接,所述第二驱动电压与所述第四驱动电压大小相等,方向相反。
本申请提供的驱动电路,通过调节显示面板显示区与非显示区之间驱动电路的电压,使得驱动电路两端电压差为零,从而减小驱动电路的漏电流,降低显示面板显示不均的现象。
在本发明的一些实施例中,该驱动电路还可以包括有稳压模块12,第一驱动模块10通过所述稳压模块12连接至第二驱动模块11,该稳压模块12用于控制第一驱动模块10和第二驱动模块11之间的电压差。若第一驱动模块10与第二驱动模块11两者之间存在有电压差,则该电压差通过该稳压模块12来进行调节,使得第一驱动模块10与第二驱动模块11之间的电压差降低至零,即第一驱动模块10与第二驱动模块11之间不存在电压差。
在本发明的一些实施例中,该稳压模块12可以为电阻,此时,若第一驱动模块10与第二驱动模块11两者之间存在有电压差,则该电压差消耗在设置在第一驱动模块10与第二驱动模块11之间的稳压模块12即电阻上。
进一步的,该电阻可以为可变电阻,即电阻的阻值随着第一驱动模块10与第二驱动模块之间11的电压差的改变而改变,进而更好的调整第一驱动模块10与第二驱动模块11之间的电压差。
如图2所示,为本发明提供的驱动电路另一实施例示意图,在本发明的一些实施例中,第一驱动模块10还可以包括第一控制模块101,所述第一控制模块101与第一驱动模块10电性连接,该第一控制模块101用于产生第一驱动信号驱动第一驱动模块10,调节第一驱动模块两端的电压,第一驱动模块10产生第二驱动电压来驱动显示面板显示区的开关器件。并且第一控制模块101产生的第一驱动信号使得第二驱动电压与第四驱动电压的电压大小相等,方向相反。
如图3所示,为本发明提供的驱动电路另一实施例示意图,在本发明的另一些实施例中,第二驱动模块11还可以包括第二控制模块111,所述第二控制模块111与第二驱动模块11电性连接,该第二控制模块111用于产生第二驱动信号驱动第二驱动模块11,调节第二驱动模块两端的电压,第二驱动模块11产生第四驱动电压来驱动显示面板非显示区的开关器件。并且第二控制模块111产生的第二驱动信号使得第四驱动电压与第二驱动电压的电压大小相等,方向相反,即第一驱动模块10与第二驱动模块11之间不存在电压差。
在上述实施例中,该第一控制模块101可以为第一电流源,第二控制模块111可以为第二电流源,且第一电流源与第二电流源的电流大小可以不同,方向也可以不同。
如图4所示,为本发明提供的驱动电路另一实施例示意图,在本发明的其他实施例中,该驱动电路还可以包括:
第三控制模块102,位于所述第一驱动模块10内,第三控制模块102与所述第一驱动模块10电性连接,该第三控制模块102用于产生第三驱动信号,该第三驱动信号调节所述第一驱动模块10两端的电压,使得第二驱动电压与第四驱动电压的电压大小相等,方向相反,即第一驱动模块10与第二驱动模块11之间不存在电压差。
第四控制模块112,位于所述第二驱动模块11内,第四控制模块112与所述第二控制模块11电性连接,该第四控制模块112用于产生第四驱动信号,该第四驱动信号调节所述第二驱动模块11两端的电压,使得第二驱动信号与第四驱动电压的电压大小相等,方向相反,即第一驱动模块10与第二驱动模块11之间不存在电压差。
在本发明的实施例中,该第三控制模块可以为第三电流源,该第四控制模块也可以为第四电流源。且第三电流源与第四电流源的电流大小可以不同,方向也可以不同。
在上述实施例的基础上,在本发明的一些其他实施例中,该驱动电路还可以包括存储电容,该存储电容用于在显示面板开关器件打开时存储电量,使得显示面板开关器件在关闭时能够依靠存储电容存储的电量来维持电压稳定。
本发明还提供一种显示面板,该显示面板包括如上任一项所述的驱动电路。
本发明提供的显示面板,通过调节显示面板显示区与非显示区之间驱动电路的电压,使得驱动电路两端电压差为零,从而减小驱动电路的漏电流,降低显示面板显示不均的现象。
根据本发明的上述目的,提出一种显示面板,包括上述的驱动电路。本实施例提供的显示面板的工作原理,与前述驱动电路的实施例工作原理一致,具体结构关系及工作原理参见前述驱动电路实施例,此处不再赘述。
本发明还提供了一种显示装置,该显示装置包括如上所述的显示面板。
本发明提供的显示装置,通过调节显示装置中显示面板显示区与非显示区之间驱动电路的电压,使得驱动电路两端电压差为零,从而减小驱动电路的漏电流,降低显示面板显示不均的现象。
根据本发明的上述目的,提出一种显示装置,包括上述的显示面板。本实施例提供的显示装置的工作原理,与前述显示面板的实施例工作原理一致,具体结构关系及工作原理参见前述显示面板实施例,此处不再赘述。
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 (20)
- 一种驱动电路,其中,应用于显示面板,所述驱动电路包括:第一驱动模块,用于接收输入的第一驱动电压,以输出第二驱动电压驱动显示面板显示区开关器件;第二驱动模块,用于接收输入的第三驱动电压,以输出第四驱动电压驱动显示面板非显示区开关器件;其中,所述第一驱动模块与所述第二驱动模块电性连接,所述第二驱动电压与所述第四驱动电压大小相等,方向相反。
- 根据权利要求1所述的驱动电路,其中,所述驱动电路还包括稳压模块,所述第一驱动模块通过所述稳压模块连接所述第二驱动模块,所述稳压模块用于控制所述第一驱动模块和所述第二驱动模块之间的电压,使得所述第一驱动模块和所述第二驱动模块之间的电压降低。
- 根据权利要求2所述的驱动电路,其中,所述稳压模块为电阻。
- 根据权利要求1所述的驱动电路,其中,所述第一驱动模块还包括第一控制模块,所述第一控制模块用于产生第一驱动信号,调节所述第一驱动模块两端的电压,以使得所述第二驱动电压与所述第四驱动电压大小相等,方向相反。
- 根据权利要求4所述的驱动电路,其中,所述第一控制模块为电流源或电阻。
- 根据权利要求1所述的驱动电路,其中,所述第二驱动电路还包括第二控制模块,所述第二控制模块用于产生第二驱动信号,调节所述第二驱动模块两端的电压,以使得所述第二驱动电压于所述第四驱动电压大小相等,方向相反。
- 根据权利要求1所述的驱动电路,其中,所述驱动电路还包括:第三控制模块,位于所述第一驱动模块内,所述第三控制模块用于产生第三驱动信号,调节所述第一驱动模块两端的电压,以使得所述第二驱动电压与所述第四驱动电压大小相等,方向相反;第四控制模块,位于所述第二驱动模块内,所述第四控制模块用于产生第四驱动信号,调节所述第一驱动模块两端的电压,以使得所述第二驱动电压与所述第四驱动电压大小相等,方向相反。
- 根据权利要求1所述的驱动电路,其中,所述驱动电路还包括电容,所述电容用于存储电量,使得显示面板开关器件在关闭时维持电压。
- 一种显示面板,其中,所述显示面板包括如权利要求1至8任一项所述的驱动电路。
- 根据权利要求9所述的显示面板,其中,所述驱动电路应用于显示面板,所述驱动电路包括:第一驱动模块,用于接收输入的第一驱动电压,以输出第二驱动电压驱动显示面板显示区开关器件;第二驱动模块,用于接收输入的第三驱动电压,以输出第四驱动电压驱动显示面板非显示区开关器件;其中,所述第一驱动模块与所述第二驱动模块电性连接,所述第二驱动电压与所述第四驱动电压大小相等,方向相反。
- 根据权利要求10所述的显示面板,其中,所述驱动电路还包括稳压模块,所述第一驱动模块通过所述稳压模块连接所述第二驱动模块,所述稳压模块用于控制所述第一驱动模块和所述第二驱动模块之间的电压,使得所述第一驱动模块和所述第二驱动模块之间的电压降低。
- 根据权利要求11所述的显示面板,其中,所述稳压模块为电阻。
- 根据权利要求10所述的显示面板,其中,所述第一驱动模块还包括第一控制模块,所述第一控制模块用于产生第一驱动信号,调节所述第一驱动模块两端的电压,以使得所述第二驱动电压与所述第四驱动电压大小相等,方向相反。
- 根据权利要求13所述的显示面板,其中,所述第一控制模块为电流源或电阻。
- 根据权利要求10所述的显示面板,其中,所述第二驱动电路还包括第二控制模块,所述第二控制模块用于产生第二驱动信号,调节所述第二驱动模块两端的电压,以使得所述第二驱动电压于所述第四驱动电压大小相等,方向相反。
- 根据权利要求10所述的显示面板,其中,所述驱动电路还包括:第三控制模块,位于所述第一驱动模块内,所述第三控制模块用于产生第三驱动信号,调节所述第一驱动模块两端的电压,以使得所述第二驱动电压与所述第四驱动电压大小相等,方向相反;第四控制模块,位于所述第二驱动模块内,所述第四控制模块用于产生第四驱动信号,调节所述第一驱动模块两端的电压,以使得所述第二驱动电压与所述第四驱动电压大小相等,方向相反。
- 根据权利要求10所述的显示面板,其中,所述驱动电路还包括电容,所述电容用于存储电量,使得显示面板开关器件在关闭时维持电压。
- 一种显示装置,其中,所述显示装置包括如权利要求9所述的显示面板。
- 根据权利要求18所述的显示装置,其中,所述驱动电路,应用于显示面板,所述驱动电路包括:第一驱动模块,用于接收输入的第一驱动电压,以输出第二驱动电压驱动显示面板显示区开关器件;第二驱动模块,用于接收输入的第三驱动电压,以输出第四驱动电压驱动显示面板非显示区开关器件;其中,所述第一驱动模块与所述第二驱动模块电性连接,所述第二驱动电压与所述第四驱动电压大小相等,方向相反。
- 根据权利要求18所述的显示装置,其中,所述驱动电路还包括稳压模块,所述第一驱动模块通过所述稳压模块连接所述第二驱动模块,所述稳压模块用于控制所述第一驱动模块和所述第二驱动模块之间的电压,使得所述第一驱动模块和所述第二驱动模块之间的电压降低。
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CN108520723A (zh) * | 2018-04-13 | 2018-09-11 | 深圳市华星光电技术有限公司 | 液晶显示面板及液晶显示器 |
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