CN103236247A - 一种液晶显示器的驱动装置、驱动方法及相应的液晶显示器 - Google Patents

一种液晶显示器的驱动装置、驱动方法及相应的液晶显示器 Download PDF

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CN103236247A
CN103236247A CN2013101634921A CN201310163492A CN103236247A CN 103236247 A CN103236247 A CN 103236247A CN 2013101634921 A CN2013101634921 A CN 2013101634921A CN 201310163492 A CN201310163492 A CN 201310163492A CN 103236247 A CN103236247 A CN 103236247A
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liquid crystal
crystal display
vertical synchronization
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吴东光
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Changsha HKC Optoelectronics Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • G09G3/3611Control of matrices with row and column drivers
    • G09G3/3648Control of matrices with row and column drivers using an active matrix
    • GPHYSICS
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    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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Abstract

本发明实施例公开了一种液晶显示器的驱动装置,包括:信号产生模块,用于提供电压和控制信号,所述控制信号包括3D使能信号;时序控制模块,与所述信号产生模块耦合,接收所述3D使能信号;DC/DC转换模块,与所述信号产生模块电耦合,用于在接收所述3D使能信号后产生垂直同步信号,所述垂直同步信号供一栅极驱动器使用并驱动像素阵列;本发明还公开了一种液晶显示器的驱动方法及相应的液晶显示器。本发明的电路结构设计简单,从而节省了设备成本。

Description

一种液晶显示器的驱动装置、驱动方法及相应的液晶显示器
技术领域
本发明涉及薄膜场效应晶体管液晶显示器(Thin Film Transistor Liquid Crystal Display,TFT-LCD)技术,特别涉及一种液晶显示器的驱动装置及驱动方法。
背景技术
TFT-LCD的应用越来越广泛,如图1所示,示出了当前的一种液晶显示器的框架结构示意图;该液晶显示器包括:像素阵列10、源极驱动器11、栅极驱动器12、时序控制模块14、DC/DC转换模块16、信号产生模块15和背光模块13。其中,系统端的信号产生模块15产生的3D能信号(3D_EN信号),并传输给控制模块14,然后由时序控制模块14传送给DC/DC转换模块16;另外,时序控制模块14还需要提供垂直同步信号(VSYNC信号)给DC/DC转换模块16,这样需要在时序控制模块14和DC/DC转换模块16之间设置相应的连接器及数据线缆,这样的设计较复杂且成本较高。
发明内容
本发明所要解决的技术问题在于,提供一种结构简单的液晶显示器的驱动装置、驱动方法及相应的液晶显示器,可节省设备成本。
为了解决上述技术问题,本发明的实施例的一方面提供了一种液晶显示器的驱动装置,包括:
信号产生模块,用于提供电压和控制信号,所述控制信号包括3D使能信号;
时序控制模块,与所述信号产生模块耦合,接收所述3D使能信号;
DC/DC转换模块,与所述信号产生模块电耦合,用于在接收所述3D使能信号后产生垂直同步信号,所述垂直同步信号供一栅极驱动器使用并驱动像素阵列。
其中,所述DC/DC转换模块包括:
3D使能信号识别单元,用于接收并识别来自所述信号产生模块的3D使能信号;
垂直同步信号产生单元,用于在所述3D使能信号识别单元识别到所述3D使能信号为高电平,产生一个垂直同步信号;
垂直同步信号发送单元,用于将所述垂直同步信号产生单元所产生的垂直同步信号发送到栅极驱动器。
其中,进一步包括:
栅极驱动器,与所述DC/DC转换模块相耦合,用于接收所述DC/DC转换模块产生的垂直同步信号,以驱动与所述栅极驱动器连接的像素阵列;
源极驱动器,与所述时序控制模块相耦合,用于接收所述时序控制模块所产生的行同步信号,以驱动与所述源极驱动器连接的像素阵列。
其中,所述信号产生模块为系统端的SoC芯片。
本发明实施例的另一方面,还提供一种液晶显示器,其包括像素阵列、源极驱动器、栅极驱动器、时序控制模块、DC/DC转换模块、信号产生模块和背光模块,其中:
信号产生模块,用于提供电压和控制信号,所述控制信号包括3D使能信号;
时序控制模块,与所述信号产生模块耦合,接收所述3D使能信号;
DC/DC转换模块,与所述信号产生模块电耦合,用于在接收所述3D使能信号后产生垂直同步信号;
栅极驱动器,与所述DC/DC转换模块相耦合,用于接收所述DC/DC转换模块产生的垂直同步信号,以驱动与所述栅极驱动器连接的像素阵列;
源极驱动器,与所述时序控制模块相耦合,用于接收所述时序控制模块所产生的行同步信号,以驱动与所述源极驱动器连接的像素阵列。
其中,所述DC/DC转换模块包括:
3D使能信号识别单元,用于接收并识别来自所述信号产生模块的3D使能信号;
垂直同步信号产生单元,用于在所述3D使能信号识别单元识别到所述3D使能信号为高电平,产生一个垂直同步信号;
垂直同步信号发送单元,用于将所述垂直同步信号产生单元所产生的垂直同步信号发送到栅极驱动器。
其中,所述信号产生模块为系统端的SoC芯片。
本发明实施例的再一方面,还提供一种液晶显示器的驱动方法,包括:
提供一信号产生模块,用于提供电压和控制信号,所述控制信号包括3D使能信号;
提供一时序控制模块,其与所述信号产生模块耦合,用于接收所述3D使能信号;
提供一DC/DC转换模块,其与所述信号产生模块电耦合,用于在接收所述3D使能信号后产生垂直同步信号,所述垂直同步信号供一栅极驱动器使用并驱动像素阵列。
其中,进一步包括如下步骤:
在所述DC/DC转换模块中,接收并识别来自所述信号产生模块的3D使能信号;
在识别到所述3D使能信号为高电平,产生一个垂直同步信号;
将所述垂直同步信号产生单元所产生的垂直同步信号发送到栅极驱动器。
其中,进一步包括如下步骤:
所述栅极驱动器接收所述DC/DC转换模块产生的垂直同步信号,以及源极驱动器接收所述时序控制模块所产生的HSYNC信号,共同驱动与所述栅极驱动器和所述源极驱动器连接的像素阵列。
实施本发明实施例,具有如下有益效果:
在本发明中,垂直同步信号由DC/DC转换模块产生,3D使能信号由系统端的信号产生模块提供,故在时序控制模块和DC/DC转换模块之间无需采用相应的连接器及线缆来传输垂直同步信号和3D使能信号,从而减少了连接器和线缆的数目,节省了设备的成本。
附图说明
为了更清楚地说明本发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地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其它的附图。
图1是现有的一种液晶显示器的框架示意图;
图2是本发明的液晶显示器的框架结构示意图;
图3是图2中DC/DC转换模块的结构示意图。
具体实施方式
下述将结合附图对本发明的实施例进行说明。
如图2所示,是本发明的液晶显示器的驱动装置的结构示意图;从中可以看出,该显示器包括:像素阵列10、源极驱动器11、栅极驱动器12、时序控制模块24、DC/DC转换模块26、信号产生模块15和背光模块13。其中,
背光模块13用于提供背光源,以让使用者得以透过光源观看像素阵列10所显示的内容;
信号产生模块15,用于提供电压(如24V的直流电源)和控制信号,所述控制信号包括3D使能信号,具体地,该信号产生模块15可以为系统端的SoC(System on a chip,片上系统)芯片;
时序控制模块24,与所述信号产生模块15耦合,接收所述3D使能信号,并控制源极驱动器11与栅极驱动器12开启像素单元以及传送数据的时间; 
DC/DC转换模块26,与所述信号产生模块15耦合,用于在接收所述3D使能信号后产生垂直同步信号,所述垂直同步信号供所述栅极驱动器14使用并驱动液晶显示器的像素阵列10。
源极驱动器11与栅极驱动器12用于连接像素阵列10中的像素单元(未画出),并在栅极驱动器14打开一列像素单元时,由源极驱动器12传送欲显示的数据至像素单元进行显示,具体地:
栅极驱动器12,与所述DC/DC转换模块26相耦合,用于接收所述DC/DC转换模块26产生的垂直同步信号,以驱动与其连接的像素阵列10;
源极驱动器11,与所述时序控制模块24相耦合,用于接收所述时序控制模块24所产生的行同步信号(HSYNC信号),以驱动与其连接的像素阵列10。
进一步参见图2所示,其为图1中DC/DC转换模块26的结构示意图。其进一步包括:
3D使能信号识别单元260,用于接收并识别来自所述信号产生模块15的3D使能信号;
垂直同步信号产生单元262,用于在所述3D使能信号识别单元260识别到所述3D使能信号为高电平,产生一个垂直同步信号;
垂直同步信号发送单元264,用于将所述垂直同步信号产生单元262所产生的垂直同步信号发送到栅极驱动器12。
具体地,在一个实施例中上述单元可以在DC/DC转换模块26中的微处理器MCU中实现。
同时,本发明的另一方面,还提供一种液晶显示器的驱动方法,其包括哪下步骤:
步骤一、提供一信号产生模块,用于提供电压和控制信号,所述控制信号包括3D使能信号;
步骤二、提供一时序控制模块,其与所述信号产生模块耦合,用于接收所述3D使能信号;
步骤三、提供一DC/DC转换模块,其与所述信号产生模块电耦合,用于在接收所述3D使能信号后产生垂直同步信号,所述垂直同步信号供一栅极驱动器使用并驱动像素阵列。
其中,进一步包括如下步骤:
在所述DC/DC转换模块中,接收并识别来自所述信号产生模块的3D使能信号;
在识别到所述3D使能信号为高电平,产生一个垂直同步信号;
将所述垂直同步信号产生单元所产生的垂直同步信号发送到栅极驱动器;
所述栅极驱动器接收所述DC/DC转换模块产生的垂直同步信号,以及源极驱动器接收所述时序控制模块所产生的HSYNC信号,共同驱动与所述栅极驱动器和所述源极驱动器连接的像素阵列。
在本发明中,垂直同步信号由DC/DC转换模块产生,3D使能信号由系统端的信号产生模块提供,故在时序控制模块和DC/DC转换模块之间无需采用相应的连接器及线缆来传输垂直同步信号和3D使能信号,从而减少了连接器和线缆的数目,简化了电路,节省了设备的成本。
以上所揭露的仅为本发明较佳实施例而已,当然不能以此来限定本发明之权利范围,因此等同变化,仍属本发明所涵盖的范围。

Claims (10)

1.一种液晶显示器的驱动装置,其特征在于,包括:
信号产生模块,用于提供电压和控制信号,所述控制信号包括3D使能信号;
时序控制模块,与所述信号产生模块耦合,接收所述3D使能信号;
DC/DC转换模块,与所述信号产生模块电耦合,用于在接收所述3D使能信号后产生垂直同步信号,所述垂直同步信号供一栅极驱动器使用并驱动液晶显示器的像素阵列。
2.如权利要求1所述的液晶显示器的驱动装置,其特征在于,所述DC/DC转换模块包括:
3D使能信号识别单元,用于接收并识别来自所述信号产生模块的3D使能信号;
垂直同步信号产生单元,用于在所述3D使能信号识别单元识别到所述3D使能信号为高电平,产生一个垂直同步信号;
垂直同步信号发送单元,用于将所述垂直同步信号产生单元所产生的垂直同步信号发送出去。
3.如权利要求1或2所述的液晶显示器的驱动装置,其特征在于,进一步包括:
栅极驱动器,与所述DC/DC转换模块相耦合,用于接收所述DC/DC转换模块产生的垂直同步信号,以驱动与所述栅极驱动器连接的像素阵列;
源极驱动器,与所述时序控制模块相耦合,用于接收所述时序控制模块所产生的行同步信号,以驱动与所述源极驱动器连接的像素阵列。
4.如权利要求3所述的液晶显示器的驱动装置,其特征在于,所述信号产生模块为系统端的SoC芯片。
5.一种液晶显示器,其特征在于,其包括像素阵列、源极驱动器、栅极驱动器、时序控制模块、DC/DC转换模块、信号产生模块和背光模块,其中:
信号产生模块,用于提供电压和控制信号,所述控制信号包括3D使能信号;
时序控制模块,与所述信号产生模块耦合,接收所述3D使能信号;
DC/DC转换模块,与所述信号产生模块电耦合,用于在接收所述3D使能信号后产生垂直同步信号;
栅极驱动器,与所述DC/DC转换模块相耦合,用于接收所述DC/DC转换模块产生的垂直同步信号,以驱动与所述栅极驱动器连接的像素阵列;
源极驱动器,与所述时序控制模块相耦合,用于接收所述时序控制模块所产生的行同步信号,以驱动与所述源极驱动器连接的像素阵列。
6.如权利要求5所述的液晶显示器,其特征在于,所述DC/DC转换模块包括:
3D使能信号识别单元,用于接收并识别来自所述信号产生模块的3D使能信号;
垂直同步信号产生单元,用于在所述3D使能信号识别单元识别到所述3D使能信号为高电平,产生一个垂直同步信号;
垂直同步信号发送单元,用于将所述垂直同步信号产生单元所产生的垂直同步信号发送到栅极驱动器。
7.如权利要求5或6所述的液晶显示器,其特征在于,所述信号产生模块为系统端的SoC芯片。
8.一种液晶显示器的驱动方法,其特征在于,包括:
提供一信号产生模块,用于提供电压和控制信号,所述控制信号包括3D使能信号;
提供一时序控制模块,其与所述信号产生模块耦合,用于接收所述3D使能信号;
提供一DC/DC转换模块,其与所述信号产生模块电耦合,用于在接收所述3D使能信号后产生垂直同步信号,所述垂直同步信号供一栅极驱动器使用并驱动像素阵列。
9.如权利要求8所述的液晶显示器的驱动方法,其特征在于,进一步包括如下步骤:
在所述DC/DC转换模块中,接收并识别来自所述信号产生模块的3D使能信号;
在识别到所述3D使能信号为高电平,产生一个垂直同步信号;
将所述垂直同步信号产生单元所产生的垂直同步信号发送到栅极驱动器。
10.如权利要求9所述的液晶显示器的驱动方法,其特征在于,进一步包括如下步骤:
所述栅极驱动器接收所述DC/DC转换模块产生的垂直同步信号,以及源极驱动器接收所述时序控制模块所产生的行同步信号,共同驱动与所述栅极驱动器和所述源极驱动器连接的像素阵列。
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