CN106023819B - 像素结构、阵列基板、显示装置和显示装置的驱动方法 - Google Patents

像素结构、阵列基板、显示装置和显示装置的驱动方法 Download PDF

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CN106023819B
CN106023819B CN201610364255.5A CN201610364255A CN106023819B CN 106023819 B CN106023819 B CN 106023819B CN 201610364255 A CN201610364255 A CN 201610364255A CN 106023819 B CN106023819 B CN 106023819B
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石戈
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BOE Technology Group Co Ltd
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Abstract

本发明实施例提供了一种像素结构、阵列基板、显示装置和显示装置的驱动方法，该像素结构，包括多个像素单元，每个像素单元包括两行子像素，像素单元每一行的子像素包括：一个单色子像素和一个白色子像素，像素单元包括的单色子像素选自第一单色子像素、第二单色子像素和第三单色子像素中的任意一个，其中，像素结构每一行或每一列的单色子像素按照第一单色子像素、第二单色子像素和第三单色子像素的周期顺序排列，且第一单色子像素、第二单色子像素和第三单色子像素发出的单色光能够混合成白光，可以用较少的RGB像素达到与传统RGB排列相同的分辨率，又可以通过白色子像素提升画面的解析力和显示亮度，能以较低成本实现RGBW显示。

Description

像素结构、阵列基板、显示装置和显示装置的驱动方法
技术领域
本发明涉及显示技术领域，尤其涉及一种像素结构、阵列基板、显示装置和显示装置的驱动方法。
背景技术
传统的像素点是由红绿蓝三个子像素组成的，按照传统的像素排列方式画面的透光率会受到影响，只有增加背光的亮度才能维持所需的亮度，造成产品的成本提高。
发明内容
鉴于上述技术问题，本发明实施例提供一种像素结构、阵列基板、显示装置和显示装置的驱动方法，解决传统的RGB子像素的排列方式需要通过增加背光来维持所需亮度的问题。
依据本发明实施例的一个方面，提供了一种像素结构，包括多个像素单元，每个所述像素单元包括两行子像素，所述像素单元每一行的子像素包括：一个单色子像素和一个白色子像素，所述像素单元包括的单色子像素选自第一单色子像素、第二单色子像素和第三单色子像素中的任意一个，且所述像素单元相邻两行的单色子像素的颜色不一样，其中，所述像素结构每一行或每一列的单色子像素按照第一单色子像素、第二单色子像素和第三单色子像素的周期顺序排列，所述第一单色子像素、第二单色子像素和第三单色子像素的颜色各不相同，且所述第一单色子像素、第二单色子像素和第三单色子像素发出的单色光能够混合成白光。
可选地，列方向上相邻的两个像素单元中，其中一个像素单元的白色子像素均位于单色子像素的左侧，另一个像素单元中白色子像素均位于单色子像素的右侧。
可选地，每一行子像素均对应一条栅线，行方向上相邻的两列像素单元之间设置有两条数据线，分别控制左右两列的子像素。
可选地，所述单色子像素的长宽比为2:1.5。
可选地，所述白色子像素的长宽比为1:1.5。
可选地，所述单色子像素的宽度与所述白色子像素的宽度相等。
可选地，所述第一单色子像素、第二单色子像素和第三单色子像素中的任意一个为红色子像素、绿色子像素或蓝色子像素。
依据本发明实施例的另一个方面，还提供了一种阵列基板，包括如上所述的像素结构。
依据本发明实施例的又一个方面，还提供了一种显示装置，包括如上所述的阵列基板。
依据本发明实施例的又一个方面，还提供了一种显示装置的驱动方法，所述显示装置包括如上所述的像素结构，所述驱动方法包括：
在第N帧时，控制相邻两行子像素中的第一行子像素为正极性，第二行子像素为负极性；
在第N+1帧时，控制所述相邻两行子像素中的第一行子像素为负极性，第二行子像素为正极性，N为正整数。
上述技术方案中的一个技术方案具有如下优点或有益效果：每个像素单元包括两行子像素，像素单元每一行的子像素包括：一个单色子像素和一个白色子像素，像素结构每一行或每一列的单色子像素按照第一单色子像素、第二单色子像素和第三单色子像素的周期顺序排列，第一单色子像素、第二单色子像素和第三单色子像素的颜色各不相同，且第一单色子像素、第二单色子像素和第三单色子像素发出的单色光能够混合成白光，可以用较少的RGB像素达到与传统RGB排列相同的分辨率，又可以通过白色子像素提升画面的解析力和显示亮度，能以较低成本实现RGBW显示。
附图说明
图1为本发明的实施例中像素结构示意图；
图2为本发明的实施例中像素单元示意图；
图3A为本发明的实施例中第N帧时子像素的极性示意图；
图3B为本发明的实施例中第N+1帧时子像素的极性示意图
图4A为要显示的英文字母O的示意图；
图4B为传统RGB排列显示字母O所需要的像素数的示意图；
图4C为本发明的实施例中显示字母O所需要的像素数的示意图。
具体实施方式
下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例，然而应当理解，可以用各种形式实现本公开而不应被这里阐述的实施例所限制。相反，提供这些实施例是为了能够更透彻地理解本公开，并且能够将本公开的范围完整的传达给本领域的技术人员。
本实施例提供的一种像素结构，包括多个像素单元，每个所述像素单元包括两行子像素，所述像素单元每一行的子像素包括：一个单色子像素和一个白色子像素，所述像素单元包括的单色子像素选自第一单色子像素、第二单色子像素和第三单色子像素中的任意一个，且所述像素单元相邻两行的单色子像素的颜色不一样，其中，所述像素结构每一行或每一列的单色子像素按照第一单色子像素、第二单色子像素和第三单色子像素的周期顺序排列，所述第一单色子像素、第二单色子像素和第三单色子像素的颜色各不相同，且所述第一单色子像素、第二单色子像素和第三单色子像素发出的单色光能够混合成白光。
在本实施例中，每个像素单元可以由四个子像素构成，包括两个白色子像素和两个单色子像素。通过这种排列方式，既可以达到低像素模拟高像素的效果，又可以通过W子像素提升画面的解析力，降低显示屏的功耗，是一种低成本实现RGBW显示的方式。
可选地，列方向上相邻的两个像素单元中，其中一个像素单元的白色子像素均位于单色子像素的左侧，另一个像素单元中白色子像素均位于单色子像素的右侧，此种结构可使得使画面显示时亮度更加的均匀，颜色更加均衡。
可选地，每一行子像素均对应一条栅线，行方向上相邻的两列像素单元之间设置有两条数据线，分别控制左右两列的子像素。此种结构可实现，通过控制每个子像素的开关和亮度来实现彩色显示画面，控制不同子像素的面积比就可以实现不同的彩色显示画面。
参见图1，图中示出了一种像素结构的示意图，下面以其中的第一像素单元11、第二像素单元12、第三像素单元13、第四像素单元14和第五像素单元15为例进行介绍。
第一像素单元11包括两行子像素，该第一像素单元11第一行子像素包括：一个红色子像素和一个白色子像素；该第一像素单元11第二行子像素包括：一个绿色子像素和一个白色子像素。
第二像素单元12包括两行子像素，该第二像素单元12每一行子像素包括：一个白色子像素和一个蓝色子像素；该第二像素单元12第二行子像素包括：一个白色子像素和一个红色子像素。
第三像素单元13包括两行子像素，该第三像素单元13每一行子像素包括：一个绿色子像素和一个白色子像素；该第三像素单元13第二行子像素包括：一个蓝色子像素和一个白色子像素。
上述第一像素单元11中的红色子像素、绿色子像素以及第二像素单元12中的蓝色子像素发出的单色光能够混合成白光。上述第二像素单元12中的红色子像素、第三像素单元13中的绿色子像素以及第三像素单元13中的蓝色子像素发出的单色光能够混合成白光。
继续参见图1，第四像素单元14包括两行子像素，该第四像素单元14第一行子像素包括：一个绿色子像素和一个白色子像素；该第四像素单元14第二行子像素包括：一个蓝色子像素和一个白色子像素。
第五像素单元15包括两行子像素，该第五像素单元15第一行子像素包括：一个蓝色子像素和一个白色子像素；该第五像素单元15第二行子像素包括：一个红色子像素和一个白色子像素。
同样，上述第一像素单元11中的红色子像素、第四像素单元14中的绿色子像素以及第五像素单元15中的蓝色子像素发出的单色光能够混合成白光。上述第一像素单元11中的绿色子像素、第四像素单元14中的蓝色子像素以及第五像素单元15中的红色子像素发出的单色光能够混合成白光。
继续参见图1，在每个像素单元中，包含有两个W子像素和两个RG或GB或BR子像素。其中，W子像素的长宽比为1：1.5，RG或GB或BR子像素的长宽比为2：1.5，W子像素的宽度与RG或GB或BR子像素的宽度相等，两者的面积比为1：2，当然可以理解的是，在本实施例中并不限定子像素的长宽比。
图1中在每一列或每一行中，RGB子像素按照R、G、B的周期顺序排列。以两行为一组，上下相邻两组的像素单元中，W子像素的位置左右对称排列，即奇数组像素阵列中单个像素中的W子像素在RG或GB或BR子像素右侧，偶数组像素阵列中单个像素中的W子像素在RG或GB或BR子像素左侧；这样排列的目的是为了使画面显示时亮度更加的均匀，颜色更加均衡。
本实施例中，像素阵列的gate线及data线排布如图1所示，其中每行子像素单元均对应一条gate线，相邻的两列子像素单元之间有两条data线，分别控制左右两列的子像素；即在奇数组像素阵列中单个像素中的W子像素的右侧和偶数组像素阵列中单个像素中的RG或GB或BR子像素的右侧通过一条data线，控制前述的子像素；同时在奇数组像素阵列中单个像素中的RG或GB或BR子像素的左侧和数组像素阵列中单个像素中的W子像素的左侧通过一条data线，控制前述的子像素。
与传统RGB及RGBW方式相比，本发明的实施例方式达到同样的分辨率所用的R/G/B子像素更少，降低了设计和制造的成本，同时提升了子像素的使用寿命；相比于一般的pentile排列方式，本发明的实施例方式中加入的W子像素，可以有效减少一般pentile排列带来的锯齿感和模糊感，提升画面的解析力，同时由于W像素的特性，与传统RGB像素排列相比，达到相同的显示亮度所需背光源亮度更低，可进一步降低成本，优化结构设计。
图2为该像素排列方式中的一种显示单元，如图2所示，该显示单元包括3*3个像素单元，每个像素单元中含有4个子像素，分别为两个W子像素和RG或GB或BR子像素；在这样一个像素单元中，R子像素、G子像素和B子像素的数量均为6个，可以根据信号的不同，通过控制每个子像素的开关和亮度来实现彩色显示画面，控制不同子像素的面积比就可以实现不同的彩色显示画面。
图3A和图3B中该像素阵列采用的行反转方式，图3A为第N帧时子像素的极性示意图，图3B为第N+1帧时子像素的极性示意图。在一个像素单元中，奇数行和偶数行的子像素数量相等，采用行反转可以保证在一个像素单元中正负极性的子像素数量相同。如图所示，在第N帧时，奇数行的子像素为正极性，偶数行的子像素为负极性；在第N+1帧时，奇数行的子像素为负极性，偶数行的子像素为正极性。
下面再详细说明本发明的实施例方式在显示画面时比传统RGB排列具备的优点：图4A为要显示的英文字母O图案，图4B为传统RGB排列显示字母O所需要的像素数，共有24个子像素，其中R、G、B各8个；图4C为发明的实施例方式显示字母O所需要的像素数，共有12个子像素，其中RGB子像素个数为16个，通过面积比控制各颜色像素的灰阶，可以得到理想的混色图案；W子像素个数为16个，所需的RGB子像素数量为传统RGB排列方案的三分之二，又有16个W子像素进行填充，所显示的图像会更加细腻，相同情况下亮度更高。
本发明的另一个实施例中，还提供了一种阵列基板，包括如上述所述的像素结构，该像素结构中的每个像素单元可以由四个子像素构成，包括两个白色子像素和两个单色子像素。通过这种排列方式，既可以达到低像素模拟高像素的效果，又可以通过W子像素提升画面的解析力，降低显示屏的功耗。
本发明的又一个实施例中，还提供了一种显示装置，包括如上所述的阵列基板，该阵列基板中的每个像素单元可以由四个子像素构成，包括两个白色子像素和两个单色子像素。通过这种排列方式，既可以达到低像素模拟高像素的效果，又可以通过W子像素提升画面的解析力，降低显示屏的功耗。
本发明的又一个实施例中，还提供了一种显示装置的驱动方法，该显示装置包括如上所述的像素结构，所述驱动方法包括：在第N帧时，控制相邻两行子像素中的第一行子像素为正极性，第二行子像素为负极性；在第N+1帧时，控制所述相邻两行子像素中的第一行子像素为负极性，第二行子像素为正极性，N为正整数。通过这种控制方式，既可以达到低像素模拟高像素的效果，又可以通过W子像素提升画面的解析力，降低显示屏的功耗，是一种低成本实现RGBW显示的方式。
应理解，说明书通篇中提到的“一个实施例”或“一实施例”意味着与实施例有关的特定特征、结构或特性包括在本发明的至少一个实施例中。因此，在整个说明书各处出现的“在一个实施例中”或“在一实施例中”未必一定指相同的实施例。此外，这些特定的特征、结构或特性可以任意适合的方式结合在一个或多个实施例中。
以上所述的是本发明的优选实施方式，应当指出对于本技术领域的普通人员来说，在不脱离本发明所述的原理前提下还可以做出当干改进和润饰，这些改进和润饰也在本发明的保护范围内。

Claims (7)

1.一种像素结构，包括多个像素单元，其特征在于，每个所述像素单元包括两行子像素，所述像素单元每一行的子像素包括：一个单色子像素和一个白色子像素，所述像素单元包括的单色子像素选自第一单色子像素、第二单色子像素和第三单色子像素中的任意一个，且所述像素单元相邻两行的单色子像素的颜色不一样，其中，所述像素结构每一行或每一列的单色子像素按照第一单色子像素、第二单色子像素和第三单色子像素的周期顺序排列，所述第一单色子像素、第二单色子像素和第三单色子像素的颜色各不相同，且所述第一单色子像素、第二单色子像素和第三单色子像素发出的单色光能够混合成白光；
列方向上相邻的两个像素单元中，其中一个像素单元的白色子像素均位于单色子像素的左侧，另一个像素单元中白色子像素均位于单色子像素的右侧；
所述单色子像素的长宽比为2:1.5，所述白色子像素的长宽比为1:1.5。
2.根据权利要求1所述的像素结构，其特征在于，每一行子像素均对应一条栅线，行方向上相邻的两列像素单元之间设置有两条数据线，分别控制左右两列的子像素。
3.根据权利要求1所述的像素结构，其特征在于，所述单色子像素的宽度与所述白色子像素的宽度相等。
4.根据权利要求1～3中任一项所述的像素结构，其特征在于，所述第一单色子像素、第二单色子像素和第三单色子像素中的任意一个为红色子像素、绿色子像素或蓝色子像素。
5.一种阵列基板，其特征在于，包括如权利要求1～4任一项所述的像素结构。
6.一种显示装置，其特征在于，包括如权利要求5所述的阵列基板。
7.一种显示装置的驱动方法，其特征在于，所述显示装置包括如权利要求1～4任一项所述的像素结构，所述驱动方法包括：
在第N帧时，控制相邻两行子像素中的第一行子像素为正极性，第二行子像素为负极性；
在第N+1帧时，控制所述相邻两行子像素中的第一行子像素为负极性，第二行子像素为正极性，N为正整数。
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