CN111179857A - 显示设备及其驱动方法 - Google Patents
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Abstract
本发明公开一种显示设备及其驱动方法。该显示设备包括:显示面板,包括多个像素;数据驱动器,被配置为向显示面板供应黑电压;以及控制器,被配置为:设置显示面板的初始驱动电源电压;在数据驱动器正在向显示面板供应黑电压的同时,确定显示面板的亮点电压;并且将亮点电压和初始驱动电源电压中的任意一个设置为最终驱动电源电压。
Description
相关申请的交叉引用
本申请要求于2018年11月12日在韩国知识产权局提交的韩国专利申请第10-2018-0138289号的优先权和权益,其全部公开内容通过引用被并入本文。
技术领域
本公开总体上涉及一种显示设备及其驱动方法。
背景技术
通用显示面板的驱动电源电压可以基于该显示面板的亮度和色度来确定。因此,当显示面板中所需的亮度增加且需要高可靠性时,可以降低低电位驱动电源电压。
然而,当低电位驱动电源电压降低时,可能会出现亮点,其中与黑色灰度相对应的亮度由于泄漏电流而增加。结果,图像质量可能会劣化。
本说明书的背景技术部分包括旨在为示例性实施例提供上下文的信息,并且本背景技术部分中的信息不一定构成现有技术。
发明内容
一些示例性实施例可以包括一种显示设备以及该显示设备的驱动方法,该显示设备通过考虑亮点来确定显示面板的驱动电源电压。
一些示例性实施例还可以包括一种显示设备以及该显示设备的驱动方法,该显示设备根据通过针对每个驱动电源电压或黑电压测量像素电流而获得的结果来确定亮点电压,并且根据所确定的亮点电压来确定显示面板的驱动电源电压。
根据本公开的一些示例性实施例,一种显示设备包括:显示面板,包括多个像素;数据驱动器,被配置为向显示面板供应黑电压;以及控制器,被配置为:设置显示面板的初始驱动电源电压;在数据驱动器正在向显示面板供应黑电压的同时,确定显示面板的亮点电压;并且将亮点电压和初始驱动电源电压中的任意一个设置为最终驱动电源电压。
控制器可以在数据驱动器正在向显示面板供应黑电压的同时,在阈值范围内按预设单位改变驱动电源电压,并且对应于改变后的驱动电源电压中的每一个驱动电源电压而测量显示面板的电流。
阈值范围可以包括初始驱动电源电压。
初始驱动电源电压可以由显示面板的亮度和色度来确定。
控制器可以在数据驱动器正在向显示面板供应黑电压的同时,在阈值范围内按预设单位改变黑电压,并且对应于改变后的黑电压中的每一个黑电压而测量显示面板的电流。
控制器可以根据驱动电源电压来确定参考电流,并通过比较参考电流与测量得到的电流来将参考电流与测量得到的电流之间的差超过预设阈值时的驱动电源电压确定为亮点电压。
当测量得到的电流被近似为任意的二次方程时,参考电流可以由该二次方程在初始驱动电源电压处的切线来定义。
控制器可以将初始驱动电源电压与亮点电压中的较大电压设置为最终驱动电源电压。
驱动电源电压可以是低电位电压。
根据本公开的一些示例性实施例,在用于对具有包括多个像素的显示面板的显示设备进行驱动的方法中,该方法包括:设置显示面板的初始驱动电源电压;通过向显示面板供应黑电压和驱动电源电压来确定亮点电压;以及将亮点电压和初始驱动电源电压中的任意一个设置为最终驱动电源电压。
亮点电压的确定可以包括:在黑电压被供应给显示面板的同时,在阈值范围内按预设单位改变驱动电源电压;以及对应于改变后的驱动电源电压中的每一个驱动电源电压而测量显示面板的电流。
阈值范围可以包括初始驱动电源电压。
可以基于显示面板的亮度和色度来确定初始驱动电源电压。
亮点电压的确定可以包括:在黑电压被供应给显示面板的同时,在阈值范围内按预设单位改变黑电压;以及对应于改变后的黑电压中的每一个黑电压而测量显示面板的电流。
亮点电压的确定可以包括:根据驱动电源电压来确定参考电流;比较参考电流和测量得到的电流;以及根据比较结果,将参考电流与测量得到的电流之间的差超过预设阈值时的驱动电源电压确定为亮点电压。
参考电流的确定可以包括:将测量得到的电流近似为任意的二次方程;以及根据该二次方程在初始驱动电源电压处的切线来定义参考电流。
最终驱动电源电压的设置可以包括:比较初始驱动电源电压和亮点电压;当初始驱动电源电压大于亮点电压时,将初始驱动电源电压设置为最终驱动电源电压;以及当亮点电压大于初始驱动电源电压时,将亮点电压设置为最终驱动电源电压。
驱动电源电压可以是低电位电压。
附图说明
现在将在下文中参考附图来更全面地描述一些示例性实施例的各方面;然而,这些示例性实施例可以以不同的形式来体现,并且不应被解释为限于本文所阐述的示例性实施例。相反,提供这些示例性实施例,使得本公开更加透彻且更加完整,并且将示例性实施例的范围更加充分地传达给本领域技术人员。
在附图中,为了说明的清楚起见,可能会夸大尺寸。应当理解,当元件被称为在两个元件“之间”时,其可以是这两个元件之间的唯一元件,或者也可以存在一个或多个中间元件。相同的附图标记贯穿全文指代相同的元件。
图1是示出根据本公开的一些示例性实施例的显示设备的框图。
图2是示出图1中所示的像素的实施例的图。
图3是示出根据本公开的一些示例性实施例的显示设备的驱动方法的流程图。
图4是示出根据本公开的一些示例性实施例的用于确定驱动电源电压的方法的流程图。
图5是示出根据本公开的一些示例性实施例的用于确定驱动电源电压的方法的流程图。
图6至图8是示出根据本公开的一些示例性实施例的用于确定驱动电源电压的方法的图。
具体实施方式
参考以下结合附图描述的实施例,本发明的一些示例性实施例的特性和特征以及实现它们的方式将变得更加显而易见。然而,本公开不限于示例性实施例,而是可以被实现为不同的形式。提供这些示例性实施例仅是为了说明的目的,并且用于使本领域技术人员更加充分地理解本公开的一些示例性实施例的范围。
在整个说明书中,当元件被称为“连接”或“耦接”到另一元件时,其可以直接地连接或耦接到另一元件,或者可以间接地连接或耦接到另一元件,其中一个或多个中间元件插入在其间。应当注意,在对每个附图的元件赋予附图标记时,相同的附图标记指代相同的元件,即使相同的元件被示出在不同的附图中。
图1是示出根据本公开的一些示例性实施例的显示设备的框图。
参考图1,根据本公开的一些示例性实施例的显示设备可以包括显示面板100、扫描驱动器210、数据驱动器220、发射驱动器230、电源240以及控制器(例如,时序控制器)250,该显示面板100包括多个像素PX。
控制器250可以基于从外部输入的信号来生成扫描驱动控制信号、数据驱动控制信号、发射驱动控制信号和电源驱动控制信号。由控制器250生成的扫描驱动控制信号可以被供应给扫描驱动器210,由控制器250生成的数据驱动控制信号可以被供应给数据驱动器220,由控制器250生成的发射驱动控制信号可以被供应给发射驱动器230,并且由控制器250生成的电源驱动控制信号可以被供应给电源240。
扫描驱动控制信号可以包括多个时钟信号以及扫描起始信号。扫描起始信号可以对第一扫描信号的输出时序进行控制。时钟信号可用于使扫描起始信号移位。
数据驱动控制信号可以包括源起始脉冲以及时钟信号。源起始脉冲可以对数据的采样起始时间进行控制,并且时钟信号可用于对采样操作进行控制。
发射驱动控制信号可以包括发射起始脉冲以及时钟信号。发射起始脉冲可以对发射控制信号的第一时序进行控制。时钟信号可用于使发射起始脉冲移位。
电源驱动控制信号可以包括与第一驱动电源VDD和第二驱动电源VSS(参见图2)有关的信息。在本公开的各实施例中,控制器250可以在显示面板100正在显示黑色灰度期间,通过根据第二驱动电源VSS或黑电压测量显示面板100的电流变化,来确定亮点电压。控制器250可以根据亮点电压来确定最佳的第二驱动电源VSS,并且向电源240提供与通过电源驱动控制信号确定的第二驱动电源VSS有关的信息。
同时,尽管在本公开中描述了其中控制器250将第一驱动电源VDD固定并且对第二驱动电源VSS进行控制的实施例,但是本公开的实施例不限于此。
扫描驱动器210可以对应于扫描驱动控制信号而输出扫描信号。扫描驱动器210可以将该扫描信号顺序地供应给扫描线SC1至SCn。扫描信号可以被设置为栅导通电压(例如,高电平电压),在该电压下,包括在像素PX中的晶体管可以被导通。
数据驱动器220可以对应于数据驱动控制信号而将数据信号供应给数据线Dl至Dm。供应给数据线D1至Dm的数据信号可以被供应给扫描信号被供应至的像素PX。为此,数据驱动器220可以将数据信号供应给数据线D1至Dm,以与扫描信号同步。
发射驱动器230可以对应于发射驱动控制信号而将发射控制信号供应给发射控制线E1至En。发射控制信号可用于对像素PX的发射时间进行控制。例如,被供应有发射控制信号的特定像素PX可以在发射控制信号被供应的时段期间被设置为发射状态,并且在其余时段期间被设置为非发射状态。
电源240可以基于电源驱动控制信号向包括在显示面板100中的像素PX中的每个像素供应驱动电源。电源240可以通过第一电源线VDDL来供应第一驱动电源VDD,并且可以通过第二电源线VSSL来供应第二驱动电源VSS。第一驱动电源VDD可以被设置为高电位电压,并且第二驱动电源VSS可以被设置为低电位电压。
显示面板100可以包括耦接到数据线Dl至Dm、扫描线SCl至SCn和发射控制线El至En的多个像素PX。像素PX可以被供应来自电源240的第一驱动电源VDD和第二驱动电源VSS。
像素PX中的每个像素可以在扫描信号被供应给扫描线SC1至SCn之中的与该像素耦接的对应扫描线时,被供应来自数据线D1至Dm之中的对应数据线的数据信号。被供应有数据信号的像素PX可以对应于该数据信号而对经由发光器件(未示出)从第一驱动电源VDD流向第二驱动电源VSS的电流量进行控制。
发光器件可以对应于电流量而产生具有预定亮度的光。另外,第一驱动电源VDD可以被设置为比第二驱动电源VSS的电压高的电压。
图2是示出图1中所示的像素的示例性实施例的图。为了便于描述,在图2中示出了耦接到第i条扫描线SCi、第(i-1)条扫描线SCi-1、第(i+1)条扫描线SCi+1和第j条数据线Dj的像素PX。
像素PX可以包括发光器件OLED、第一晶体管T1至第七晶体管T7以及存储电容器Cst。
发光器件OLED的一个端部经由第六晶体管T6耦接到第一晶体管Tl,并且发光器件OLED的另一个端部耦接到第二驱动电源VSS。发光器件OLED产生具有与从第一晶体管T1供应的电流量相对应的亮度(例如,预定亮度)的光。
第一晶体管(驱动晶体管)T1的源电极经由第五晶体管T5耦接到第一驱动电源VDD,并且第一晶体管T1的漏电极经由第六晶体管T6耦接到发光器件OLED的一个端部。第一晶体管T1对应于作为其栅电极的第一节点N1的电压而对经由发光器件OLED从第一驱动电源VDD流向第二驱动电源VSS的电流量进行控制。
第二晶体管T2耦接在第j条数据线Dj与第一晶体管T1的源电极之间。另外,
第二晶体管T2的栅电极耦接到第i条扫描线SCi。当扫描信号被供应给第i条扫描线SCi时,第二晶体管T2导通,以将第j条数据线Dj与第一晶体管T1的源电极彼此电耦接。
第三晶体管T3耦接在第一晶体管T1的漏电极与第一节点Nl之间。另外,第三晶体管T3的栅电极耦接到第i条扫描线SCi。当扫描信号被供应给第i条扫描线SCi时,第三晶体管T3导通,以将第一晶体管T1的漏电极与第一节点N1彼此电耦接。因此,当第三晶体管T3导通时,第一晶体管T1被二极管耦接。
第四晶体管T4耦接在第一节点Nl与初始化电源Vint之间。另外,第四晶体管T4的栅电极耦接到第(i-1)条扫描线SCi-1。当扫描信号被供应给第(i-1)条扫描线SCi-1时,第四晶体管T4导通,以将初始化电源Vint的电压供应给第一节点N1。初始化电源Vint被设置为低于数据信号的电压。
第五晶体管T5耦接在第一驱动电源VDD与第一晶体管Tl的源电极之间。另外,
第五晶体管T5的栅电极耦接到第i条发射控制线Ei。当发射控制信号被供应给第i条发射控制线Ei时,第五晶体管T5截止,否则导通。
第六晶体管T6耦接在第一晶体管T1的漏电极与发光器件OLED的一个端部之间。另外,第六晶体管T6的栅电极耦接到第i条发射控制线Ei。当发射控制信号被供应给第i条发射控制线Ei时,第六晶体管T6截止,否则导通。
第七晶体管T7耦接在初始化电源Vint与发光器件OLED的一个端部之间。另外,第七晶体管T7的栅电极耦接到第(i+1)条扫描线SCi+1。当扫描信号被供应给第(i+1)条扫描线SCi+1时,第七晶体管T7导通,以将初始化电源Vint的电压供应给发光器件OLED的一个端部。
存储电容器Cst耦接在第一驱动电源VDD与第一节点Nl之间。存储电容器Cst存储与数据信号相对应的电压以及第一晶体管T1的阈值电压。
图3是示出根据本公开的一些示例性实施例的显示设备的驱动方法的流程图。
参考图1和图3,根据本公开的一些示例性实施例的显示设备对显示面板100的初始驱动电源电压进行设置(310)。初始驱动电源电压可以包括第一驱动电源VDD的电压(在下文中被称为第一驱动电源电压)和第二驱动电源VSS的电压(在下文中被称为第二驱动电源电压)。
可以基于显示面板100的亮度和色度来设置初始驱动电源电压。显示面板100的亮度和色度可以由显示设备的类型、规格、显示面板100的尺寸等来确定。初始驱动电源电压可以由显示设备的制造商等来设置。
接下来,显示设备执行多次编程(MTP)(320)。例如,显示设备可以实时地对参考伽马电压进行编程,以使显示面板100的亮度和色度适合于一值(例如,所需值)。参考伽马电压是输入到数据驱动器220的电压,数据驱动器220生成用于确定显示亮度的数据信号。数据驱动器220使用参考伽马电压来生成与输入图像数据的灰度相对应的数据信号,并将所生成的数据信号提供给显示面板100。提供在显示面板100的每个像素PX中的发光器件OLED对应于数据信号而发射光。显示设备对参考伽马电压进行编程,使得显示面板100可以具有目标亮度和目标色度。
接下来,显示设备可以设置与黑色灰度相对应的伽马电压(例如,黑电压)(330)。例如,显示设备可以相对于每个像素PX来设置与黑色灰度相对应的伽马电压。显示设备不仅可以设置与黑色灰度相对应的伽马电压,而且可以设置相对于可由像素PX表现的预设灰度的对应伽马电压。
接下来,显示设备可以基于显示面板100的亮点电压来设置驱动电源电压(340)。
在本公开的一些示例性实施例中,控制器250可以通过数据驱动器220向显示面板100提供黑电压,并且可以在改变第二驱动电源电压的同时对流过显示面板100的电流进行测量。电流是流过提供在显示面板100的每个像素PX中的发光器件OLED的电流,并且可以是第二驱动电源VSS的电流。黑电压是与黑色灰度相对应的预设伽马电压。
控制器250使用电流测量结果来确定显示面板100的亮点电压。控制器250可以基于通过对所确定的亮点电压与预设初始第二电源电压进行比较而获得的结果,来将亮点电压重新设置为第二驱动电源电压,或者将预设初始第二电源电压设置为最终第二驱动电源电压。
在下文中,将更详细地描述用于设置显示设备的驱动电源电压的上述方法。
图4是更详细地示出根据本公开的一些示例性实施例的用于确定驱动电源电压的方法的流程图。图5是详细地示出根据本公开的一些示例性实施例的用于确定驱动电源电压的方法的流程图。图6至图8是示出根据本公开的一些示例性实施例的用于确定驱动电源电压的方法的图。
参考图4,首先,显示设备显示具有特定灰度的图像(341)。在实施例中,显示设备可以在显示面板100上显示具有黑色灰度的图像。数据驱动器220向显示面板100提供黑电压,使得显示面板100的像素PX可以发射具有与黑色灰度相对应的亮度的光。
接下来,在驱动电源电压正在被改变的同时,显示设备对显示面板100的电流进行测量(342)。
在本公开的一些示例性实施例中,显示设备的控制器250在阈值范围内按预设单位来改变(增加和/或减少)从电源240供应给显示面板100的第二驱动电源电压。可以基于初始驱动电源电压来确定用于改变第二驱动电源电压的阈值范围。例如,阈值范围可以被确定为包括初始第二电源电压。
在一些示例性实施例中,当初始第二电源电压被设置为-10V时,显示设备可以从-10V到-11.1V以0.1V的间隔来改变被供应给显示面板100的第二驱动电源电压。
在被供应给显示面板100的第二驱动电源电压正在被改变的同时,显示设备对显示面板100的电流进行测量。测量得到的电流是流过提供在每个像素PX中的发光器件OLED的电流。换言之,测量得到的电流可以是流过第二驱动电源VSS的电流。控制器250可以相对于按预设单位改变的每个第二驱动电源电压来测量显示面板100的电流。在图6中,作为示例,示出了通过在第二驱动电源电压从-10V到-11.1V以0.1V的间隔正在被改变的同时对电流进行测量而获得的结果。在示例中,第二驱动电源电压与测量得到的电流之间的关系可以由任意的二次方程来定义或者被近似为任意的二次方程。
然而,根据本公开的实施例不限于此。例如,根据本公开的一些示例性实施例,显示设备可以如图5中所示根据数据电压(即,与黑色灰度相对应的黑电压(例如7V))来对电流变化进行测量(342’)。在另一实施例中,数据驱动器220可以在阈值范围内按预设单位改变黑电压,并且将与改变后的黑电压相对应的数据信号供应给显示面板100。阈值范围可以基于预定的黑电压来确定。例如,阈值范围可以被确定为包括预定的黑电压。
接下来,显示设备基于测量得到的电流变化来确定显示面板100的亮点电压(343)。
控制器250可以根据第二驱动电源电压来确定参考电流。可以基于在初始第二电源电压下测量得到的电流来确定参考电流。在一些示例性实施例中,当第二驱动电源电压与测量得到的电流之间的关系由任意的二次方程来定义时,参考电流可以由对应的二次方程在初始第二电源电压处的切线来确定。初始第二电源电压处的切线可以由以下的方程1来定义。
方程1
I=a×(VVSS-VVSS_int)+I0
这里,I是相对于第二驱动电源电压的参考电流,VVSS是第二驱动电源电压,VVSS_int是初始第二电源电压,I0是在初始第二电源电压下测量得到的电流,并且a是相对于该二次方程在初始第二电源电压处的微分值。
在图7中,作为示例,示出了图6的实施例中的参考电流。即,在图7中,作为示例,示出了当第二驱动电源电压为-10V(其为初始第二电源电压)时的切线。
控制器250将参考电流与相对于第二驱动电源电压测量得到的电流进行比较。当如图8中所示,参考电流与测量得到的电流之间的差超过预设阈值时,控制器250可以将对应的第二驱动电源电压确定为亮点电压。
在本公开中,用于确定显示设备的亮点电压的方法不限于此。
当确定亮点电压时,显示设备可以通过比较亮点电压与预设驱动电源电压来确定亮点电压是否大于预设驱动电源电压(344)。即,控制器250可以对所确定的亮点电压与预设第二驱动电源电压进行比较。
当亮点电压大于预设驱动电源电压时,显示设备将该亮点电压设置为驱动电源电压(345)。即,当亮点电压大于预设第二驱动电源电压时,控制器250可以将亮点电压设置为第二驱动电源电压。
相反,当亮点电压小于或等于预设驱动电源电压时,显示设备将预设驱动电源电压设置为最终驱动电源电压(346)。即,当亮点电压小于或等于预设第二驱动电源电压时,控制器250将预设第二驱动电源电压设置为最终第二驱动电源电压。
当通过如上所述而确定的驱动电源电压来驱动显示设备时,可以防止或减少由于显示面板100的亮点的出现而导致的图像质量的劣化,并且可以提高显示设备的产量以及可靠性。
在根据本公开的显示设备及其驱动方法中,通过考虑亮点来确定显示面板的驱动电源电压,使得可以防止或减少图像质量由于亮点的出现而被劣化的可能性。
此外,在根据本公开的显示设备及其驱动方法中,确定了最佳的黑色灰度电压,使得可以提高显示设备的产量以及可靠性。
在本文中已经公开了示例性实施例,并且尽管使用了特定的术语,但它们仅以一般和描述性的意思被使用和解释,而不是为了限制的目的。在某些情况下,如对递交本申请的领域内的普通技术人员来说将是显而易见的那样,结合特定实施例描述的特征、特性和/或元件可以单独使用,或者也可以与结合其它实施例描述的特征、特性和/或元件组合使用,除非另有明确指示。因此,本领域技术人员应理解,在不脱离如所附权利要求书及其等同物中阐述的本公开的精神和范围的情况下,可以在形式和细节上进行各种改变。
Claims (15)
1.一种显示设备,包括:
显示面板,包括多个像素;
数据驱动器,被配置为向所述显示面板供应黑电压;以及
控制器,被配置为:
设置所述显示面板的初始驱动电源电压;
在所述数据驱动器正在向所述显示面板供应所述黑电压的同时,确定所述显示面板的亮点电压;并且
将所述亮点电压和所述初始驱动电源电压中的任意一个设置为最终驱动电源电压。
2.根据权利要求1所述的显示设备,其中,所述控制器被配置为在所述数据驱动器正在向所述显示面板供应所述黑电压的同时,在阈值范围内按预设单位改变驱动电源电压,并对应于改变后的驱动电源电压中的每一个驱动电源电压而测量所述显示面板的电流。
3.根据权利要求2所述的显示设备,其中,所述阈值范围包括所述初始驱动电源电压。
4.根据权利要求1所述的显示设备,其中,所述初始驱动电源电压由所述显示面板的亮度和色度来确定。
5.根据权利要求1所述的显示设备,其中,所述控制器被配置为在所述数据驱动器正在向所述显示面板供应所述黑电压的同时,在阈值范围内按预设单位改变所述黑电压,并对应于改变后的黑电压中的每一个黑电压而测量所述显示面板的电流。
6.根据权利要求2所述的显示设备,其中,所述控制器被配置为根据所述驱动电源电压来确定参考电流,并且将所述参考电流与测量得到的电流之间的差超过预设阈值时的驱动电源电压确定为所述亮点电压。
7.根据权利要求6所述的显示设备,其中,当所述测量得到的电流被近似为任意的二次方程时,所述参考电流由所述二次方程在所述初始驱动电源电压处的切线来定义。
8.根据权利要求1所述的显示设备,其中,所述控制器被配置为将所述初始驱动电源电压与所述亮点电压中的较大电压设置为所述最终驱动电源电压。
9.一种用于对具有显示面板的显示设备进行驱动的方法,所述显示面板包括多个像素,所述方法包括:
设置所述显示面板的初始驱动电源电压;
通过向所述显示面板供应黑电压和驱动电源电压来确定亮点电压;以及
将所述亮点电压和所述初始驱动电源电压中的任意一个设置为最终驱动电源电压。
10.根据权利要求9所述的方法,其中,所述亮点电压的所述确定包括:
在所述黑电压被供应给所述显示面板的同时,在阈值范围内按预设单位改变所述驱动电源电压;以及
对应于改变后的驱动电源电压中的每一个驱动电源电压而测量所述显示面板的电流。
11.根据权利要求10所述的方法,其中,所述阈值范围包括所述初始驱动电源电压。
12.根据权利要求9所述的方法,其中,所述亮点电压的所述确定包括:
在所述黑电压被供应给所述显示面板的同时,在阈值范围内按预设单位改变所述黑电压;以及
对应于改变后的黑电压中的每一个黑电压而测量所述显示面板的电流。
13.根据权利要求10所述的方法,其中,所述亮点电压的所述确定包括:
根据所述驱动电源电压来确定参考电流;
比较所述参考电流与测量得到的电流;以及
根据比较结果,将所述参考电流与所述测量得到的电流之间的差超过预设阈值时的驱动电源电压确定为所述亮点电压。
14.根据权利要求13所述的方法,其中,所述参考电流的所述确定包括:
将所述测量得到的电流近似为任意的二次方程;以及
根据所述二次方程在所述初始驱动电源电压处的切线来定义所述参考电流。
15.根据权利要求9所述的方法,其中,所述最终驱动电源电压的所述设置包括:
比较所述初始驱动电源电压与所述亮点电压;
当所述初始驱动电源电压大于所述亮点电压时,将所述初始驱动电源电压设置为所述最终驱动电源电压;以及
当所述亮点电压大于所述初始驱动电源电压时,将所述亮点电压设置为所述最终驱动电源电压。
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US20110316838A1 (en) * | 2010-06-29 | 2011-12-29 | Jung-Keun Ahn | Apparatus for supplying power, display device having the same, and driving method thereof |
US20170301294A1 (en) * | 2014-02-28 | 2017-10-19 | Samsung Display Co., Ltd. | Display device |
CN107871469A (zh) * | 2016-09-26 | 2018-04-03 | 三星显示有限公司 | 发光显示设备 |
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KR102424054B1 (ko) | 2015-12-04 | 2022-07-25 | 삼성디스플레이 주식회사 | 유기 발광 디스플레이 장치의 소비전력 감소를 위한 구동전압 설정 방법 |
KR102537993B1 (ko) | 2017-10-31 | 2023-06-01 | 삼성디스플레이 주식회사 | 표시 장치의 블랙 데이터 설정 방법 및 이를 채용한 표시 장치 |
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CN101657848A (zh) * | 2007-04-13 | 2010-02-24 | 伊斯曼柯达公司 | 校准rgbw显示器 |
CN101989402A (zh) * | 2009-07-30 | 2011-03-23 | 三星移动显示器株式会社 | 有机发光显示装置及其驱动电压设置方法 |
US20110316838A1 (en) * | 2010-06-29 | 2011-12-29 | Jung-Keun Ahn | Apparatus for supplying power, display device having the same, and driving method thereof |
US20170301294A1 (en) * | 2014-02-28 | 2017-10-19 | Samsung Display Co., Ltd. | Display device |
CN107871469A (zh) * | 2016-09-26 | 2018-04-03 | 三星显示有限公司 | 发光显示设备 |
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