CN111399303A - 电光显示器 - Google Patents
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- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
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Abstract
一种具有至少一行显示像素的电光显示器,该显示器包括至少一行显示像素的第一显示像素以及至少一行显示像素的第二显示像素,第一显示像素耦合到第一偏置线,第二显示像素耦合到第二偏置线,其中第二偏置线与第一偏置线不同。
Description
相关申请的引用
本申请与2018年12月28日提交的美国临时申请62/785,875有关。
上述申请的全部公开内容通过引用并入本文。
发明主题
本发明涉及电光显示装置,更具体地,涉及包括薄膜晶体管阵列的显示背板。
背景技术
基于粒子的电泳显示器是多年来密集研究和开发的主题。在这种显示器中,多个带电粒子(有时称为颜料粒子)在电场的影响下在流体中移动。电场通常由导电薄膜或者晶体管(例如,场效应晶体管)提供。与液晶显示器相比,电泳显示器具有良好的亮度和对比度、宽视角、状态双稳性以及低功耗。然而,这种电泳显示器的开关速度比LCD显示器慢,并且电泳显示器通常太慢而无法显示实时视频。另外,由于流体的粘度限制了电泳粒子的运动,因此电泳显示器在低温下可能会缓慢。尽管有这些缺点,电泳显示器仍可以在日常产品中找到,例如电子书(电子阅读器)、移动电话和移动电话外壳、智能卡、标牌、手表、货架标签以及闪存驱动器。
许多商业电泳介质实质上仅显示两种颜色,在黑色与白色极端之间具有梯度,称为“灰度”。这种电泳介质在具有不同的第二颜色的有色流体中使用具有第一颜色的单一类型的电泳粒子(在这种情况下,当粒子位于显示器的观看表面附近时显示第一颜色,而当粒子与观看表面隔开时显示第二颜色),或者在无色流体中使用具有不同的第一和第二颜色的第一和第二类型的电泳粒子。在后一种情况下,当第一类型的粒子位于显示器的观看表面附近时显示第一颜色,而当第二类型的粒子位于观看表面附近时显示第二颜色。通常,两种颜色是黑色和白色。
尽管电泳介质和电泳设备看似简单,但它们表现出复杂的行为。例如,已经发现显示硬件的某些组件(例如,电路)可能产生不必要的电容效应,这导致不期望的光学缺陷。因此,需要优化显示器的硬件配置以改善图像质量。
发明内容
本发明提供一种具有至少一行显示像素的电光显示器,其中包括至少一行显示像素的第一显示像素和所述至少一行显示像素的第二显示像素,第一显示像素耦合到第一偏置线,第二显示像素耦合到第二偏置线,其中第二偏置线与第一偏置线不同。
附图说明
图1示出了根据本文公开的主题的背板电路;
图2示出了根据本文公开的主题的显示像素的顶视图;
图3A示出了根据本文公开的主题的显示像素的等效电路的实施例;
图3B示出了根据本文提出的主题的示例驱动方案;以及
图4示出了根据本文提出的主题的背板电路。
具体实施方式
如上所述,本文提出的主题提供了减少电容耦合的方法和手段,并且改善了电光显示性能。
应用于材料或者显示器的术语“电光”,在本文中使用的是其在成像领域中的常规含义,指的是具有第一和第二显示状态的材料,该第一和第二显示状态的至少一个光学性质不同,通过向该材料施加电场使该材料从其第一显示状态改变到其第二显示状态。尽管光学性质通常是人眼可感知的颜色,但其可以是其他光学性质,例如,光传输、反射率、发光,或者是在意在用于机器阅读的显示器的情况下,在可见范围外的电磁波长的反射率的改变的意义上的伪色。
术语“灰色状态”在本文中使用的是其在成像领域中的常规含义,指的是介于像素的两个极端光学状态之间的状态,但不一定意味着这两个极端状态之间的黑白过渡。例如,下文提到的一些E Ink专利和公开的申请描述的电泳显示器,其中极端状态是白色和深蓝色,使得中间的“灰色状态”实际上是淡蓝色。实际上,如已经提到的,光学状态的改变可以根本不是颜色改变。术语“黑色”和“白色”在下文中可用于指代显示器的两个极端光学状态,并且应当被理解为通常包括并非严格的黑色和白色的极端光学状态,例如前述的白色和深蓝色状态。在下文中可以使用术语“单色的”来表示仅将像素驱动到其两个极端光学状态而没有中间灰色状态的驱动方案。
术语“双稳态的”和“双稳性”在本文中使用的是其在本领域中的常规含义,指的是包括具有第一和第二显示状态的显示元件的显示器,该第一和第二显示状态的至少一个光学性质不同,使得在利用有限持续时间的寻址脉冲驱动任意给定元件以呈现其第一或第二显示状态之后,在该寻址脉冲终止之后,该状态将持续的时间是改变显示元件状态所需的寻址脉冲的最小持续时间的至少几倍,例如至少四倍。在公开的美国专利申请No.2002/0180687(另见相应的国际申请公开No.WO 02/079869)中示出了一些支持灰度的基于粒子的电泳显示器不仅在其极端的黑色和白色状态下是稳定的,而且在其中间的灰度状态下也是稳定的,一些其他类型的电光显示器也是如此。这种类型的显示器被恰当地称为“多稳态的”而非双稳态的,但是为了方便起见,术语“双稳态的”在本文中可以用来同时涵盖双稳态和多稳态显示器。
术语“冲激”在本文中使用的是其常规含义,即电压相对于时间的积分。然而,一些双稳态电光介质用作电荷转换器,并且对于这种介质,可以使用冲激的替代定义,即电流相对于时间的积分(其等于所施加的总电荷)。取决于介质是用作电压-时间冲激转换器还是电荷冲激转换器,应使用适当的冲激定义。
最近已公开了转让给麻省理工学院(MIT)和E Ink公司或以其名义的许多专利和申请,它们描述了封装的电泳介质。这种封装的介质包括许多小囊体,每个小囊体本身包括内部相和包围该内部相的囊壁,其中该内部相包含悬浮在液体悬浮介质中的电泳移动粒子。通常,囊体本身被保持在聚合物粘合剂内以形成位于两个电极之间的连贯层。这些专利和申请中描述的技术包括:
(a)电泳粒子、流体和流体添加剂;参见例如美国专利Nos.7,002,728和7,679,814;
(b)囊体、粘合剂和封装工艺;参见例如美国专利Nos.6,922,276和7,411,719;
(c)微单元结构、壁材料和形成微单元的方法;参见例如美国专利Nos.7,072,095和9,279,906;
(d)用于填充和密封微单元的方法;参见例如美国专利Nos.7,144,942和7,715,088;
(e)包含电光材料的薄膜和子组件;参见例如美国专利Nos.6,982,178和7,839,564;
(f)显示器中使用的背板、粘合层和其他辅助层以及方法;参见例如美国专利Nos.D485,294;6,124,851;6,130,773;6,177,921;6,232,950;6,252,564;6,312,304;6,312,971;6,376,828;6,392,786;6,413,790;6,422,687;6,445,374;6,480,182;6,498,114;6,506,438;6,518,949;6,521,489;6,535,197;6,545,291;6,639,578;6,657,772;6,664,944;6,680,725;6,683,333;6,724,519;6,750,473;6,816,147;6,819,471;6,825,068;6,831,769;6,842,167;6,842,279;6,842,657;6,865,010;6,873,452;6,909,532;6,967,640;6,980,196;7,012,735;7,030,412;7,075,703;7,106,296;7,110,163;7,116,318;7,148,128;7,167,155;7,173,752;7,176,880;7,190,008;7,206,119;7,223,672;7,230,751;7,256,766;7,259,744;7,280,094;7,301,693;7,304,780;7,327,511;7,347,957;7,349,148;7,352,353;7,365,394;7,365,733;7,382,363;7,388,572;7,401,758;7,442,587;7,492,497;7,535,624;7,551,346;7,554,712;7,583,427;7,598,173;7,605,799;7,636,191;7,649,674;7,667,886;7,672,040;7,688,497;7,733,335;7,785,988;7,830,592;7,843,626;7,859,637;7,880,958;7,893,435;7,898,717;7,905,977;7,957,053;7,986,450;8,009,344;8,027,081;8,049,947;8,072,675;8,077,141;8,089,453;8,120,836;8,159,636;8,208,193;8,237,892;8,238,021;8,362,488;8,373,211;8,389,381;8,395,836;8,437,069;8,441,414;8,456,589;8,498,042;8,514,168;8,547,628;8,576,162;8,610,988;8,714,780;8,728,266;8,743,077;8,754,859;8,797,258;8,797,633;8,797,636;8,830,560;8,891,155;8,969,886;9,147,364;9,025,234;9,025,238;9,030,374;9,140,952;9,152,003;9,152,004;9,201,279;9,223,164;9,285,648;和9,310,661;和美国专利申请公开Nos.2002/0060321;2004/0008179;2004/0085619;2004/0105036;2004/0112525;2005/0122306;2005/0122563;2006/0215106;2006/0255322;2007/0052757;2007/0097489;2007/0109219;2008/0061300;2008/0149271;2009/0122389;2009/0315044;2010/0177396;2011/0140744;2011/0187683;2011/0187689;2011/0292319;2013/0250397;2013/0278900;2014/0078024;2014/0139501;2014/0192000;2014/0210701;2014/0300837;2014/0368753;2014/0376164;2015/0171112;2015/0205178;2015/0226986;2015/0227018;2015/0228666;2015/0261057;2015/0356927;2015/0378235;2016/077375;2016/0103380;和2016/0187759;以及国际申请公开No.WO 00/3800;欧洲专利Nos.1,099,207 B1和1,145,072 B1;
(g)颜色形成和颜色调节;参见例如美国专利Nos.7,075,502和7,839,564;
(h)用于驱动显示器的方法;参见例如美国专利Nos.7,012,600和7,453,445;
(i)显示器的应用;参见例如美国专利Nos.7,312,784和8,009,348;
(j)非电泳显示器,如在美国专利No.6,241,921;美国专利申请公开No.2015/0277160;以及美国专利申请公开Nos.2015/0005720和2016/0012710中所述。
所有前述专利和专利申请均通过引用以其整体并入本文。
许多前述专利和申请认识到封装的电泳介质中围绕离散微囊体的壁可以被连续相代替,从而产生所谓的聚合物分散型电泳显示器,其中电泳介质包括电泳流体的多个离散液滴和聚合物材料的连续相,并且即使没有离散的囊膜与每个单独的液滴相关联,在这种聚合物分散型电泳显示器内的电泳流体的离散液滴也可以被当作囊体或微囊体;参见例如前述的2002/0131147。因此,出于本申请的目的,这种聚合物分散型电泳介质被认为是封装的电泳介质的子类。
封装的电泳显示器通常不会受到传统电泳设备的聚集和沉降失败模式的影响,并且提供了进一步的优点,例如能够在多种柔性和刚性基板上印刷或涂覆显示器。(使用“印刷”一词意在包括所有形式的印刷和涂覆,包括但不限于:预先计量的涂覆,例如贴片压模涂覆、狭缝或挤压涂覆、滑动或瀑布式涂覆、幕式涂覆、辊式涂覆,例如刮刀式辊涂,正向和逆向辊涂;凹版涂覆;浸涂;喷涂;弯液面涂覆;旋涂;刷涂;气刀涂覆;丝网印刷工艺;静电印刷工艺;热敏印刷工艺;喷墨印刷工艺;以及其他类似技术)。因此,所产生的显示器可以是柔性的。此外,由于可以(使用多种方法)印刷显示介质,所以可以廉价地制造显示器本身。
相关类型的电泳显示器是所谓的“微单元电泳显示器”。在微单元电泳显示器中,带电粒子和悬浮流体并没有被封装在微囊体内,而是被保持在载体介质(通常是聚合物薄膜)内形成的多个空腔内。参见例如国际申请公开No.WO 02/01281和公开的美国申请No.2002/0075556,这两者均被转让给Sipix Imaging公司。
前述类型的电光显示器是双稳态的并且通常在反射模式下使用,然而如在某些前述专利和申请中所描述的,这种显示器可以在“快门模式”下操作,其中电光介质用于调节光的透射从而使显示器在透射模式下操作。液晶(包括聚合物分散型液晶)当然也是电光介质,但是通常不是双稳态的并且在透射模式下操作。下文描述的本发明的某些实施例受限于反射型显示器,而其他实施例可以与反射型和透射型显示器一起使用,包括常规的液晶显示器。
不论显示器是反射型还是透射型,以及所使用的电光介质是否是双稳态的,为了获得高分辨率的显示器,显示器的各个像素必须是可寻址的而不会受到相邻像素的干扰。实现该目的的一种方法是提供非线性元件的阵列(例如,晶体管或二极管),至少一个非线性元件与每个像素相关联,以产生“有源矩阵”显示器。寻址一个像素的寻址电极或像素电极通过相关联的非线性元件连接到适当的电压源。通常,当非线性元件是晶体管时,像素电极连接到晶体管的漏极,在下面的描述中将假定这种布置,然而本质上是任意的并且像素电极可以连接到晶体管的源极。常规地,在高分辨率阵列中,像素被布置在行和列的二维阵列中,使得任一特定像素由一个指定的行和一个指定的列的交点唯一地定义。每列中所有晶体管的源极连接到单个列电极,而每行中所有晶体管的栅极连接到单个行电极;同样,将源极分配到行并且将栅极分配到列是常规的,但是本质上是任意的,并且如果需要,可以将其反过来。行电极连接到行驱动器,该行驱动器实质上确保在任意给定时刻仅选择一行,即,向所选择的行电极施加电压,例如以确保所选择的行中的所有晶体管均是导通的;而向所有其他行施加电压,例如以确保这些未选中的行中的所有晶体管保持不导通。列电极连接到列驱动器,该列驱动器将所选择的电压施加在各个列电极上,以将所选择的行中的像素驱动到其期望的光学状态。(前述电压是相对于公共前电极的,该公共前电极通常被提供在电光介质的非线性阵列的相对侧并且延伸到整个显示器)。在预选的间隔(称为“线寻址时间”)之后,将取消选择所选择的行,选择下一行,并且将列驱动器上的电压改变为写入显示器的下一行。重复该过程,从而以逐行的方式写入整个显示器。
有源矩阵显示器的制造工艺已被良好地建立。例如,可以使用各种沉积和光刻技术来制造薄膜晶体管。晶体管包括栅电极、绝缘介电层、半导体层以及源电极和漏电极。向栅电极施加电压在介电层上提供了电场,这大大提高了半导体层的源漏电导率。这种变化允许源电极和漏电极之间的电传导。通常,栅电极、源电极和漏电极被图案化。一般来说,半导体层也被图案化,以便最小化相邻电路元件之间的杂散传导(即,串扰)。
液晶显示器通常采用非晶硅(“a-Si”)、薄膜晶体管(“TFT”)作为用于显示像素的开关设备。这种TFT通常具有底栅配置。在一个像素内,薄膜电容器通常保持由开关TFT传输的电荷。电泳显示器可以将类似的TFT用于电容器,然而该电容器的功能与液晶显示器中的那些有所不同;参见前述共同未决的申请序列号09/565,413,以及公开2002/0106847和2002/0060321。可以制造薄膜晶体管以提供高性能。然而,制造过程会导致巨大的成本。
在TFT寻址阵列中,像素电极在线寻址时间期间经由TFT充电。在线寻址时间期间,通过改变施加的栅极电压将TFT切换到导通状态。例如,对于n型TFT,栅极电压被切换到“高”状态以将TFT切换到导通状态。
此外,可能由于在向显示像素提供驱动波形的数据线和像素电极之间发生串扰而引起诸如电压偏移之类的不良影响。类似于上述的电压偏移,即使在未寻址显示像素(例如,耗尽的相关联像素TFT)时,数据线和像素电极之间的串扰也可能由两者之间的电容耦合引起。这种串扰可能导致电压偏移,这是不期望的,因为它可能导致光学伪影,例如图像条纹(image streaking)。
在某些情况下,电泳显示器或EPD可以包括两个基板(例如,塑料或玻璃),其中前面板层压板或FPL位于两个基板之间。在一些实施例中,上基板的底部可以涂覆有透明导电材料,以用作导电电极(即,Vcom平面)。下基板的顶部可以包括电极元件的阵列(例如,用于每个显示像素的导电电极)。半导体开关(例如,薄膜晶体管或TFT)可以与这些像素电极中的每一个相关联。向像素电极和Vcom平面施加偏置电压可能会导致FPL的电光转换。这种光学转换可以作为在EPD上显示文本或图形信息的基础。为了显示期望的图像,需要向每个显示像素(例如,显示像素100)的像素电极施加适当的电压。在一些实施例中,显示器可以包括多行显示像素,其中每行可以包括与显示像素100类似的多个显示像素。作为示例来说明本文公开的主题的工作原理,显示像素100在本文中用作示例性像素单元的实例。现在回到图1,为了实现上文提到的光学转换,可以向与显示像素100相关联的TFT 102提供栅极线信号、数据线信号、VCOM线信号和存储电容器。在一个实施例中,如图1所示,每个TFT 102的栅极可以电耦合到扫描线104,并且晶体管的源极或漏极可以连接到数据线108,并且其中,存储电容器110的一个端子可以连接到VCOM线106并且另一端子连接到像素电极。在一些实施例中,上基板的底部上的Vcom和下基板的顶部上的Vcom线栅可以连接到相同的DC源。
EPD操作和串扰
在操作中,将驱动信号(例如,电压脉冲)施加到每条数据线以更新显示像素。为了选择要更新的显示像素,选择性地激活扫描线,使得来自数据线的驱动信号可以被施加到像素电极以更新对应的显示像素。在某些情况下,顺序地激活每条扫描线,直到EPD的所有显示像素都被更新。在该更新处理中,由于不期望的电容耦合效应,VCOM信号可能被干扰或者偏离预期的电平。
图2示出了根据本文公开的主题的显示像素200的顶视图。显示像素200包括被配置为驱动显示像素的像素电极204。在使用中,将由一系列感应到像素电极204上的电压脉冲来驱动显示像素200。该一系列电压脉冲可以通过晶体管208被施加到像素电极204。晶体管208可以用作开关,其打开和关闭通向像素电极204的信号路径。例如,晶体管208的栅极216可以连接到信号选择栅极线202。在使用中,通过向晶体管208的栅极216施加或不施加电压,该栅极202可以用于选择性地导通和断开晶体管208。此外,可以通过数据线206提供该一系列电压脉冲。如图2所示,该数据线206还电耦合至晶体管208。在操作中,可以通过栅极线202发送信号(例如,电脉冲)以激活或导通晶体管208,并且一旦晶体管208被导通,通过数据线206施加的电信号可以通过晶体管208被发送到像素电极204。图2中还显示了Vcom线210。在一些实施例中,该Vcom线210可以电耦合到显示器的顶部电极(图2中未示出),以保持顶部电极处于恒定的电压水平(例如,Vcom)。通常,该Vcom线210处于位于像素电极204下方的设备级。连接到该Vcom线210的还有存储电容器的电极214,其中电极214可以位于与Vcom线210相同的设备层。
现在参考图3A,在电容耦合的源中,一种可能的源可能是数据线与Vcom线之间的电容(即,CDC)。例如,当通过数据线施加电压信号时,数据线中的电压电平的改变可以引起数据线与Vcom线之间的电容耦合效应。另一种可能的电容耦合的源可能出现在存储电容器的电极与像素电极之间。
在操作中,当选择显示像素(即,扫描线选择像素)并且通过数据线施加驱动电压信号时,Vcom电压值可能会经历波动(例如,电压值的下降),从而引起数据线处的电压值变化。在这种情况下,受某些上述电容效应的影响,Vcom电压值可能偏离目标值(例如,+15、-15或0V)。如果在断开扫描线时Vcom不能返回该目标电压值(即,将所选择的显示像素置于浮动状态)。
其中,除了上述的电容耦合效应之外,例如,Ctotal还可以包括任意的金属层与材料层之间可能产生的电容耦合效应,
因此,所选择的像素电极的电压电平将从目标值大致偏移到下面估计的量,这可以导致沿Vcom线方向的可观察带。可以使用电荷守恒原理来计算像素电压的偏移(ΔVPIXEL)
其中,ΔVCOM是断开扫描线时VCOM值中产生的电压偏移,Ctotal是像素电极的总电容。这有时可以称为串扰或条纹。减轻这些不良效应的一种方法可以是减少Vcom信号的RC延迟,以确保在激活扫描线期间VCOM值返回到目标值或电平。图3B示出了当导通像素的扫描电压302变高时(即,导通该像素),Vcom电压304经历一个下降。
为了减少上述ΔVCOM的RC延迟,在一些实施例中,可以以锯齿形放置显示面板的各个像素,以减少来自两个相邻VCOM线的耦合效应。
图4中示出了一种示例性布局。不同于图1中示出的布局,其中在多个像素的任一给定行中,与显示像素相关联的每个存储电容器CST(例如,图1的电容器110)连接到同一条偏置线(例如,VCOM线),因此这条VCOM线遭受由该特定行中的所有像素产生的累积电容耦合效应。现在参考图4中示出的布局,在该背板电路400中,相邻像素(例如,像素402和404)可以具有其连接到不同VCOM线(例如,分别为VCOM线406和408)的存储电容器CST(例如,分别为410和412)。在该配置中,由于每个像素连接到与其邻居不同的VCOM线,由此产生的耦合效应由两条相邻的VCOM线分担,因此对于两条VCOM线VCOM电压的偏移减半,并且因此可以减少或改善串扰。
在一些实施例中,如图4所示,在具有多个像素的给定像素行内的相邻像素耦合到不同的VCOM线。这意味着,第一显示像素可以耦合到第一VCOM线,而第二显示像素可以耦合到与第一VCOM线不同的第二VCOM线等等。在一些其他的实施例中,像素行的大于1%但小于10%的像素可以耦合到与该像素行的其余显示像素(例如,连接到第二VCOM线)相比不同的VCOM线(例如,第一VCOM线)。在另一个实施例中,像素行的大于1%但小于20%的像素可以耦合到与该像素行的其余显示像素(例如,第二VCOM线)相比不同的VCOM线(例如,第一VCOM线)。在又一个实施例中,像素行的大于1%但小于30%的像素可以耦合到与该像素行的其余显示像素(例如,第二VCOM线)相比不同的VCOM线(例如,第一VCOM线)。在一些其他的实施例中,像素行的大于1%但小于40%的像素可以耦合到与该像素行的其余显示像素(例如,第二VCOM线)相比不同的VCOM线(例如,第一VCOM线)。
在一些实施例中,代替在每个相邻像素之间交替地连接VCOM线,可以随机地分布VCOM连接。例如,在一个实施例中,可以以随机或伪随机布置来分布(显示像素行的)VCOM连接。在一个特定的实施例中,该随机或伪随机布置可以与其他规则结合,例如禁止导致与相邻像素行相关联的三个或更多VCOM线相邻于同一像素列的VCOM连接的布置。例如,伪随机数生成器可以用于生成表示VCOM连接顺序的数字序列。
从前述内容可以看出,本发明可以提供用于减少串扰和显示像素电压偏移的背板。对于本领域技术人员将显而易见的是,在不脱离本发明的范围的情况下,可以对上述本发明的特定实施例进行多个改变和修改。因此,整个前述描述将以说明性而非限制性的意义来解释。
Claims (9)
1.一种具有至少一行显示像素的电光显示器,包括:
所述至少一行显示像素的第一显示像素,所述第一显示像素耦合到第一偏置线;
所述至少一行显示像素的第二显示像素,所述第二显示像素耦合到第二偏置线,其中所述第二偏置线与所述第一偏置线不同。
2.根据权利要求1所述的电光显示器,其中,所述第一偏置线是VCOM线。
3.根据权利要求1所述的电光显示器,其中,所述第二偏置线是VCOM线。
4.根据权利要求1所述的电光显示器,其中,所述第一显示像素和第二显示像素在所述一行显示像素内彼此相邻地定位。
5.根据权利要求1所述的电光显示器,还包括耦合到第三偏置线的第三显示像素,其中,所述第三偏置线不同于所述第一偏置线和第二偏置线。
6.根据权利要求1所述的电光显示器,其中,所述至少一行显示像素的大于1%但小于10%的显示像素耦合到所述第一偏置线,并且所述至少一行显示像素的其余显示像素耦合到所述第二偏置线。
7.根据权利要求1所述的电光显示器,其中,所述至少一行显示像素的大于1%但小于20%的显示像素耦合到所述第一偏置线,并且所述至少一行显示像素的其余显示像素耦合到所述第二偏置线。
8.根据权利要求1所述的电光显示器,其中,所述至少一行显示像素的大于1%但小于30%的显示像素耦合到所述第一偏置线,并且所述至少一行显示像素的其余显示像素耦合到所述第二偏置线。
9.根据权利要求1所述的电光显示器,其中,所述至少一行显示像素的大于1%但小于40%的显示像素耦合到所述第一偏置线,并且所述至少一行显示像素的其余显示像素耦合到所述第二偏置线。
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| CN111399303B (zh) | 2023-07-04 |
| US20200211479A1 (en) | 2020-07-02 |
| US11521565B2 (en) | 2022-12-06 |
| TW202032524A (zh) | 2020-09-01 |
| TWI728631B (zh) | 2021-05-21 |
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