CN1057614C - 用于空间光调制器的象素控制电路 - Google Patents

用于空间光调制器的象素控制电路 Download PDF

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CN1057614C
CN1057614C CN94101778A CN94101778A CN1057614C CN 1057614 C CN1057614 C CN 1057614C CN 94101778 A CN94101778 A CN 94101778A CN 94101778 A CN94101778 A CN 94101778A CN 1057614 C CN1057614 C CN 1057614C
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凯文·L·科恩赫
詹姆斯·L·康纳
克劳德·E·托
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Texas Instruments Inc
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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
    • G09G3/3433Control 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 light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
    • G09G3/346Control 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 light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices based on modulation of the reflection angle, e.g. micromirrors
    • 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
    • G09G3/2007Display of intermediate tones
    • G09G3/2018Display of intermediate tones by time modulation using two or more time intervals
    • G09G3/2022Display of intermediate tones by time modulation using two or more time intervals using sub-frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/74Projection arrangements for image reproduction, e.g. using eidophor
    • H04N5/7416Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal
    • H04N5/7458Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal the modulator being an array of deformable mirrors, e.g. digital micromirror device [DMD]
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00Aspects of the constitution of display devices
    • G09G2300/08Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00Aspects of the constitution of display devices
    • G09G2300/08Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0804Sub-multiplexed active matrix panel, i.e. wherein one active driving circuit is used at pixel level for multiple image producing elements
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00Aspects of the constitution of display devices
    • G09G2300/08Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809Several active elements per pixel in active matrix panels
    • G09G2300/0842Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
    • G09G2300/0857Static memory circuit, e.g. flip-flop
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/10Dealing with defective pixels

Abstract

一种空间光调制器(10),它具有比现有器件减少的控制电路。多组象素单元(11)共用一个存储单元(12),因此每个存储单元(12)具有与其它存储单元(12)相同的输出端数。一组中的各象素单元(11)通过复位线(13)转换其通或断状态,这独立于该组中其它象素单元的状态。帧数据在一组时间周期内加载于分比特-帧,这样每一分比特-帧仅包含对应于在一根复位线(13)上的象素单元(11)的数据。因此,同一存储单元(12)可用于向其输出端中的所有象素单元传送数据,因为在一个时刻输出端中仅有一个象素单元(11)转换状态。

Description

用于空间光调制器的象素控制电路
本发明涉及空间光调制器,尤其涉及那些被称之为可变形镜器件的调制器,更具体地涉及用于控制各象素单元的通断状态的电路。
空间光调制器(SLM)由一个可电子寻址的象素单元阵列和相关控制电路组成。典型用途是用于图象显示,其中,来自各象素的光被放大并通过一光学系统投射到显示屏上。调制方式取决于调制器如何与光学系统组合。
SLM的常用形式为可变形镜器件,其中,各象素单元均为一个能够相应于电输入独立运动的细小的微机械镜。入射光可按方向、相位或幅度进行调制,以便由各象素反射。
对于许多应用而言,SLM是双态制的,即,各象素单元均可具有两种状态中的任一种。单元可以是关断的,这意味着它不传输光,或是开通的,这意味着它以最大强度传输光。为实现光的中间态的视觉,有几种脉宽调制技术可以采用。这些技术描述于序号为No.07/678,761、名称为“用于脉宽调制显示系统的DMD构造和计时”的在审美国专利申请中,该申请与本申请委托了相同代理人。
一般情况下,在每帧期间,通过将每一象素开通或关断一个与二进制数相应的时间段,脉宽调制产生一个累积亮度。脉宽凋制使用各种向SLM加载的方式,例如“比特—帧”加载法,其中,在一个时刻向整帧的每个象素加载一比特。每个象素单元具有一个存储单元。存储单元的整个阵列按每单元一比特加载,随后将所有象素单元设定为与数据的该比特—帧相应。在目前的比特—帧显示期间,用于下一比特—帧的数据被载入。因此,例如对于8比特象素亮度量化方式而言,SLM每帧内要加载8次,在一个时刻对应每帧的一个象素。在这种方法中,对于n-比特亮度量化而言,最高比特显示帧周期的1/2,次高比特显示1/4帧周期,等等,最低比特(LSB)的显示时间为1/2n帧周期。
现有的象素加载技术存在的问题是,对于每一象素单元,这些技术要求至少一个存储单元。随着每帧内象素量的增加,SLM器件的存储要求导致成本增加和生产率降低。所需要的是减少了用于控制象素单元的电路的SLM。
对于每一象素单元使用一存储单元的加载方式,还将一个象素可被设定的最小时间限制于将比特—帧加载于存储阵列所需的时间。当采用脉宽调制时,对应于LSB的显示时间是最短显示时间。在此LSB时间内,用于下一帧的数据必须被载入。当要求“峰值”数据率时,这便是时间周期。为满足此峰值数据率,一确定的峰尖计数(Pin count)和相应的数据频率必须是可以获取的。高的峰值数据率会转换成高的峰尖计数和/或高频率,这会增加器件和/或系统的成本。所需要的是降低了峰值数据率的SLM。
本发明的第一方面是一种具有独立控制的象素单元的空间光调制器(SLM),每个象素单元可根据传送至该象素单元的数据信号的量值被设定和转换至两种状态的任一种状态。此SLM具有一个象素单元阵列,每一单元具有两个可能的状态,这种状态取决于从相关存储单元传送至该单元的数据信号的量值。此SLM还具有多个存储单元,每个存储单元可与一组象素单元进行数据传送。每个存储单元存储表示其(象素单元)组中的一个象素单元的通或断状态的数据量值。并将表示此数据量值的一个信号传送至其组中的象素单元。多根复位线如此连接至象素单元,即,一根不同的复位线与一组中的每一个象素单元连通。因此,复位线可用于在一个时刻仅仅使一组中的一个象素单元复位。
本发明的技术优越性在于,单个存储单元控制一组象素单元。这使对应于每个象素的电路减小,其效果是降低了器件成本并提高了生产率。另外,发生加载时所必须具有的峰值数据率降低了,因为对于任一复位而言仅有较少的存储单元加载。这具有减少峰尖计数和/或降低数据频率要求的效果,并具有进一步降低器件和/或系统成本的效果。
图1是一个SLM阵列的一部分的方框图,它具有带对应于四个象素单元的输出端的存储单元。
图2示出一个具有对应于四个象素的输出端的存储单元。
图3示出SLM的镜元件的双稳工作状态。
图4和5示出,对于具有导电的镜和铰接件的扭铰型象素单元阵列而言,如何容易地连接复位线。
图6是用于将一帧数据加至一存储单元阵列的数据序列的一个例子,每个存储单元具有对应于四个象素单元的输出端。
图7-9示出为提供改进的防故障性能而增加的实施例。
图1是SLM阵列10的一部分的方框图,此阵列具有象素单元11,这些象素单元通过存储单元12和复位线13控制。图中只示出少量的带有其相关控制电路的象素单元11;而一个典型的SLM阵列10要有几千个这类的单元11。图1主要用于显示每个存储单元12如何配合多个象素单元11。有关象素单元11、存储单元12和复位线13之间的相互连接的其它细节在下面结合图2-5阐述。
为便于描述。SLM是一个被称为可变形镜器件(DMD)的器件。DMD具有细小的微机械镜元件的阵列,它可以被调制,以向观视者提供各种强度的视感。DMD的一个例子是由Texas in-struments,Inc.制造的DMD器件。不过,本发明不限于采用DMD作为SLM10,可采用其它类型的具有可寻址象素单元和相似特性的SLM,所述特性也就是,根据数据信号和复位控制信号工作,如下所述。
象素单元11以双稳态模式工作,这意味着存在两个稳定的状态。正如下面结合图3所阐述的,象素单元的运动方向可通过给它们“加载”来控制,即,利用来自其存储单元12的数据通过寻址电极“驱动”象素单元11。正如结合图3所进一步解释的那样,象素单元11的状态根据此驱动电压,即通过由复位电极施加差动偏压而改变。这里使用的术语“复位信号”是指传送至象素单元11而使它们改变状态的信号。
象素单元11分成各由四个象素单元11组成的组,每组与一个存储单元12相连。在与单个存储单元12相关的一组中的象素单元的数量被称作该存储单元12的“输出端数”。因此,在图1中,每个存储单元12具有对应四个象素的输出端数。本发明也适用于其它输出端数,这里采用四输出端仅是便于举例。
每个存储单元12可以是常用的SRAM(静态随机存取存储器)单元。许多目前的SLM10的设计的一个优点是,它们可以容易地集成在下面的CMOS控制电路上。本说明书中采用存储单元12,每个存储单元具有单位存储能力。不过,本发明的范围还可包括存储能力多于一位的存储单元或具有附加逻辑电路的存储单元。例如,每个存储单元12可具有双缓冲结构。
当象素电极11改变其状态时,四根复位线13控制时间。一旦对应于连接至一特定复位线13的象素单元11的所有存储单元12被加载,象素单元11的状态便根据已载入的数据并同时根据此复位线13上的复位信号而改变。换言之,象素电极11在由其存储单元12供给它们的数据改变时保持其电流状态,并且直至接收到复位信号。
在与存储单元12相关的四个象素单元的组中,每一象素单元11连至四根复位线13中的不同的一根。因此,在一组中的每个象素单元11可在与该组中的其它象素电极11不同的时间改变其状态。
通常,与一个存储单元12相关的每组象素单元11具有相同数量的象素单元,并且此数量与复位线13的数量相同。不过,可有(其它)例子,例如在象素单元阵列的边缘,一个存储单元12连至较少数量的象素单元。
图2示出一个含四个象素单元11的组、其存储单元12和复位线13、以及相关的互连线。每个象素单元11根据相连的复位线13来标记,即,象素单元11(A)连至复位线13(A)。正如所指出的,“1”或“0”值均可传送至象素单元11。当存储单元12转换时,这些值中的任一个传送至与此存储单元12相连的所有象素单元。在每个象素单元11的复位线13上的一个信号决定该象素单元是否将改变状态。
图3是典型的DMD型SLM10的单个象素单元11的断面示图。此空间光调制是由反射镜31实现的,此反射镜可在两个方向的任一个上倾斜。镜31的两个稳定状态由虚线标示出。在其稳定位置,镜31的一端向两个着陆(landing)电极32中的一个移动。两个寻址电极33连接至存储单元12的输出端,存储单元12的输出端包括此象素单元11。复位电压通过复位电极34施加至导电镜31。寻址电极33用于施加电位差,这样,镜31的一端被吸引到其下面的电极33,而另一端被排斥。电极34上的复位电压决定镜31是否将真正地转向相应的着陆电极32。因此,镜31通过其存储单元12被“加载”,并通过复位线13复位。如果在一选定方向上倾斜,例如趋向显示屏,此象素单元将“通”;否则它会倾斜而将光引向别处,比如引入陷阱(trap)。
图4是象素单元11的一个阵列的一部分的顶视平面图,象素单元11的复位线13通过扭铰件(torsion hinges)41。正如图1和2中虚线所标示的,每个象素单元11与一个具有对应于四个象素单元11的输出端的存储单元12相配合。在本实施例中,象素单元11具有导电镜31和导电的扭铰件41,因此复位可直接通过扭铰件41施于镜31,而不需专门的连接或绝缘。在图4中,每个镜31具有一对扭铰件41,而象素单元11如此对准,以使扭铰件41沿水平线布置,从而使对复位线13的连接容易地沿这些水平线形成。
图5示出SLM10的另一种排列。如图5所示,每个存储单元12的输出端是对应象素单元11的垂直分离组。不过,复位连接是沿对角线方向的复位线13。正如图2和3中所示,每个象素单元11根据所连接的复位线13标记,即,象素单元11(A)连接至复位线13(A)。这种排列在SLM10中是有用的,在此如此使象素单元11对准是有益的,即,它们的扭铰件41沿对角线布置。
对于脉宽调制而言,SLM10的工作与现有的脉宽调制技术在下列方面基本一致,即,n-比特量值表示一帧周期内各象素单元11的亮度。n-比特量值的每一比特表示一个时间,在此时间内象素单元11是通的或断的。n-比特量值中的比特数在此称作“比特深度”。
为便于在此举例,假设每个象素单元11在一帧内按5比特的比特深度显示光。因此,例如,对于单帧而言,与单个存储单元12相关的一组中的四个象素单元11可能具有下列数据:
象素1  ABCDE
象素2  FGHIJ
象素3  KLMNO
象素4  PQRST
其中(ABCDE)表示一个5比特的二进制量值。每比特的量值为“1”或“0”,它们各表示象素单元11的两种状态中的一种状态。
如果假设在LSB位置的“1”表示一个时间单元的“通”值,在MSB位置的“1”将表示16时间单元,以下的中间比特各需8,4和2时间单元。如果比特4为MSB,而比特0为LSB,那么由每个比特的“1”值表示的时间为:
比特4(MSB)  16时间单元
比特3       8时间单元
比特2       4时间单元
比特1       2时间单元
比特0(LSB)  1时间单元
因此,5-比特值越大,象素单元11在—帧内处于通状态的时间越长,在此帧内相对于其它象素单元11就越亮。
有关脉宽调制技术的进一步的细节描述于序号为No.07/678,761的美国专利申请中,该申请已在本专利申请的背景技术部分引出,并在此作为参考。
这里描述的脉宽凋制技术利用了这样的事实,即,与存储单元12的转换速度性能相比,一些通或断时间是长的。本发明的一个根本前提条件是,单个存储单元12可以配合多个象素单元11,如果其数据载入是按没有一个以上的其象素单元11需要同时复位的原则排序的话。
通常,用于载入每帧数据的顺更序取决于输出端数和比特深度。各种顺序均是可能的,但顺序应遵循的一个规则是,在一组中没有两个象素单元11可以同时要求加载。
除上段中的规则外,几种“任选的”规则也可采用。若假设有m个象素单元的输出,一种如此的规则是,在排序的开始,所有m个象素单元11在第一个m时间单元内加载。因此,每组中的每个象素单元11按最初时间段的连续顺序加载。此规则使帧间具有良好的隔离,并在一帧的结束和下一帧的开始之间具有m时间单元的最大时滞。另外,在第一个m-1时间段载入的数据应不是LSB数据。最后,对于任一象素单元11而言,数据应在一帧的相同位置开始和结束。这是确切的,因为对于n比特的比特深度而言,用于承载数据的数据单元的数量是2n-1数据单元。
图6示出一个数据排序的例子,此例子是用于具有四输出端的一个存储单元12,并采用全部上述规则。因此,这里m=4,并假设每一加载工序占用一个时间单元,与一个存储单元12相关的4个象素单元11用相同数据加载,但仅有一个象素单元11复位。与第一复位线13(A)相关的象素单元记为象素单元11(A),等等。
图6的加载顺序以下列方式用于5-比特数据帧:
施载于象素11(A),比特4,和复位13(A)
施载于象素11(B),比特3,和复位13(B)
施载于象素11(C),比特2,和复位13(D)
跳过2 LSB时间单元
施载于象素11(C),比特4,和复位13(C)
跳过2 LSB时间单元
施载于象素11(B),比特0,和复位13(B)
施载于象素11(B),比特1,和复位13(B)
施载于象素11(D),比特1,和复位13(D)
施载于象素11(B),比特4,和复位13(B)
施载于象素11(D),比特0,和复位13(D)
施载于象素11(D),比特2,和复位13(D)
跳过1 LSB时间单元
施载于象素11(A),比特0,和复位13(A)
施载于象素11(A),比特2,和复位13(A)
施载于象素11(D),比特4,和复位13(D)
跳过2 LSB时间单元
施载于象素11(A),比特3,和复位13(A)
施载于象素11(C),比特0,和复位13(C)
施载于象素11(C),比特1,和复位13(C)
跳过1LSB时间单元
施载于象素11(C),比特3,和复位13(C)
跳过2LSB时间单元
施载于象素11(B),比特2,和复位13(B)
施载于象素11(A),比特1,和复位13(A)
跳过1 LSB时间单元采用帧缓冲器(未示出)的缓冲可用于安排数据于正确的顺序。一帧数据(此数据填充SLM10的阵列)被分成四个“分比特—帧”。对于第一分比特—帧而言,对于与存储单元12相关的各组中的每个象素单元11(A),比特4将是合适的定序,以便在一个时间单元内加载,这样SLM10的1/4便承载了。随后,对于每个象素单元11(B)而言,所有比特3将被定为第二分比特—帧,以便加载,等等。
数据排序的整体效果是,对于每一帧而言,象素单元11的整个阵列是按象素组复位的,而不是同时复位。因此,复位是以“分复位”图形方式发生,即,那些连至单一复位线13的象素单元11同时转换。
与现有的脉宽调制技术相同,显示一个全n-比特帧要用2n-1 LSB时间单元。不过,每一加载步骤伴随较少的存储量增加,因而可在较少时间内完成。在此说明例中,对于每个复位信号,比特—帧的1/4被加载。换言之,每比特—帧要用四个复位信号。与现有脉宽调制技术不同,每比特—帧可显示来自不同比特的数据。
作为本发明的加载技术的一个结果,峰值数据率降低了。另外,虽然每帧内加载次数增加,但较高值比特不再相对于所有象素单元11同时发生。因此,在这些较高值比特的显示时间内不再等待。平均数据率和峰值数据率更为接近。
每个存储单元12的最大输出端数取决于比特深度。若比特深度为n,理论上的最大输出端数(fanoutmax)可按下式计算:
Figure C9410177800151
上述等式的分子表示每帧有2n-1时间段。分母表示每个输出端需要n种状态(event)。
对于各种比特深度和输出端数;可利用计算机程序来确定合适的顺序。以规则为基础的程序将防止违反上述规则及其它可选规则,上述规则禁止在一组中一个以上的象素单元11同时要求复位。
本发明的改进方法将上述“分复位”程序与“阻透技术(block clearing)”相组合。阻透技术已与现有的脉宽调制方法联用,以避免在一个LSB时间单元内不得不对整体比特—帧加载的问题。对于阻透技术而言,比特—帧在LSB时间单元的全倍数中加载。在SLM10上设有一机构,以允许所有象素单元11快速成为“清楚的”,即,转换至“断”状态。因此,那些“通”时间少于加载所需时间的比特—帧可被给出合适的权。在一帧内时间单元的总数超过最大亮度时间乘以为清楚化所用的时间单元数。因此,在部分加载过程中具有处于“断”状态的象素单元11的序列的后果是SLM10的光效的降低。阻透技术的总体概念描述于序号为No.07/678,761的美国专利申请中。
图7示出图1-5的SLM10的改进形式,尤其是关于各存储单元12和与其输出端相应的象素单元11的互连。为降低在任一象素单元11处出现故障造成的影响,在每一数据连线上包括一电阻元件,本例中为电阻器71。例如,在象素单元11的一个中出现的短路将不会导致该组中剩余象素单元11失效。
如上所述,许多SLM10的特征是,它们可容易地采用集成电路工艺制造。在这些类型的SLM10中,电阻器71可由多晶硅材料制造。另外,高电阻材料可用于电极接触。再者,作为对附加电阻区域或元件的一种替换,象素单元电极,例如图3中的电极33,可由具有高表面电阻的材料制成,例如氮化钛或氮氧化钛。
图8示出SLM10的另一种防故障改进形式。用二极管81替代电阻器71,作为电阻元件来隔离在任一象素单元11处产生的故障。
图9示出第三种防故障改进形式。保险丝91用于在有短路的象素单元11处“隔断”。齐纳二极管92或一些其它形式的击穿型二极管提供高的对地电阻。
尽管已参照特定实施例对本发明进行了描述,但这种描述并不意味着局限于此。对于本领域的普通技术人员而言,所公开的实施例的各种修改以及变换的实施例将是清楚的。因此,应当理解,所附权利要求书覆盖了属于本发明的真正范围内的所有改进。

Claims (16)

1.一种空间光调制器,包括:
一个象素单元阵列,每个象素单元可以根据从一相关存储单元传送至该象素单元的数据信号的量值独立地设定或复位至两种状态中的任一状态;
多个存储单元,每个可与所述阵列的一组象素单元进行数据传送,以便存储表示所述组的一象素单元的通或断状态的数据量值,并将表示所述数据量值的信号传送至其组中的象素单元;以及
多根复位线,它们如此连至所述象素单元,即,不同的复位线与一象素单元组中的每个象素单元相连。
2.根据权利要求1的空间光调制器,其特征在于,每个象素单元组包括四个象素单元。
3.根据权利要求1的空间光调制器,其特征在于,所述象素单元是微机械镜元件。
4.根据权利要求1的空间光调制器,其特征在于,所述象素单元具有导电镜,所述复位线直接连至所述镜。
5.根据权利要求1的空间光调制器,其特征在于,所述象素单元具有导电的扭铰件,所述复位线通过所述扭铰件连接。
6.根据权利要求5的空间光调制器,其特征在于,所述扭铰件在水平方向排成行。
7.根据权利要求5的空间光调制器,其特征在于,所述扭铰件沿对角线排列。
8.根据权利要求1的空间光调制器,其特征在于,每个所述象素元件具有一对用于传送所述数据信号的寻址电极,并进一步包括一个电阻元件,此电阻元件位于一象素单元的寻址电极和与该象素元件相关的存储单元之间,以便在一象素元件失效时隔离所述象素元件。
9.根据权利要求1的空间光调制器,其特征在于,每个所述象素单元具有一对由高阻材料制成的寻址电极,以便在一象素单元失效时隔离所述象素单元。
10.根据权利要求8的空间光调制器,其特征在于,所述空间光调制器是制备于所述存储单元的集成电路阵列之上。
11.一种采用空间光调制器对多—比特帧数据帧进行脉宽调制的方法,所述调制器具有一个象素单元阵列,该方法包括下列步骤;
将每帧数据的显示时间分成相等的时间单元;
将每帧数据分成多个分比特—帧,每个分比特—帧包括对应于连至相关复位线的象素单元的数据;
将表示所述数据的分比特—帧的数据传送至所述存储单元,其中每个存储单元接收表示仅仅一个其象素单元的通或断状态的数据比特;
通过采用各存储单元将表示由该存储单元接收的数据比特的数据信号施加至其相关象素单元,而对所述象素单元加载;
通过采用复位信号改变连至所述复位线的所有象素单元的状态,而使所述象素单元转换状态;
对一数据帧内的数据的各分比特—帧重复上述传送,加载和转换步骤。
12.根据权利要求11的方法,其特征在于,对所述象素单元加载的步骤的第一次加载与帧时间周期的起始同时发生。
13.根据权利要求11的方法,其特征在于,连至每根复位线的象素单元在接收包含最低比特的分比特—帧之前接收至少一个包含较高比特值的分比特—帧。
14.根据权利要求11的方法,其特征在于,所述分时步骤是这样实现的,每个时间段表示对应于每个数据值的数据的最低比特的显示时间。
15.根据权利要求11的方法,其特征在于,所述加载步骤和所有重复的加载步骤是这样实现的,一组中的每个象素单元在最初时间段的连续时序间加载。
16.根据权利要求11的方法,其特征在于,所述加载步骤是这样实现的,对应于各组中任一象素单元的数据在各帧的相同位置开始和结束。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111243505A (zh) * 2018-11-29 2020-06-05 昆山工研院新型平板显示技术中心有限公司 一种像素驱动电路和显示装置

Families Citing this family (172)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6674562B1 (en) 1994-05-05 2004-01-06 Iridigm Display Corporation Interferometric modulation of radiation
GB9407302D0 (en) * 1994-04-13 1994-06-08 Rank Brimar Ltd Display device driving circuitry and method
US8014059B2 (en) 1994-05-05 2011-09-06 Qualcomm Mems Technologies, Inc. System and method for charge control in a MEMS device
EP0685830A1 (en) * 1994-06-02 1995-12-06 Texas Instruments Incorporated Improvements in or relating to spatial light modulators
US5499062A (en) 1994-06-23 1996-03-12 Texas Instruments Incorporated Multiplexed memory timing with block reset and secondary memory
DE69524502T2 (de) * 1994-07-25 2002-06-06 Texas Instruments Inc Verfahren zum Reduzieren zeitlicher Artefakte in digitalen Videosystemen
EP0710019A3 (en) * 1994-10-31 1997-03-26 Texas Instruments Inc Digital mirror display device for television
US5610624A (en) * 1994-11-30 1997-03-11 Texas Instruments Incorporated Spatial light modulator with reduced possibility of an on state defect
US5748164A (en) 1994-12-22 1998-05-05 Displaytech, Inc. Active matrix liquid crystal image generator
US5808800A (en) 1994-12-22 1998-09-15 Displaytech, Inc. Optics arrangements including light source arrangements for an active matrix liquid crystal image generator
US5757348A (en) 1994-12-22 1998-05-26 Displaytech, Inc. Active matrix liquid crystal image generator with hybrid writing scheme
US5670977A (en) * 1995-02-16 1997-09-23 Texas Instruments Incorporated Spatial light modulator having single bit-line dual-latch memory cells
US5670976A (en) * 1995-02-28 1997-09-23 Texas Instruments Incorporated Spatial light modulator having redundant memory cells
US6969635B2 (en) * 2000-12-07 2005-11-29 Reflectivity, Inc. Methods for depositing, releasing and packaging micro-electromechanical devices on wafer substrates
US5654538A (en) * 1995-10-27 1997-08-05 The United States Of America As Represented By The Secretary Of The Air Force Optically addressed general purpose programmable logic device
US5731802A (en) * 1996-04-22 1998-03-24 Silicon Light Machines Time-interleaved bit-plane, pulse-width-modulation digital display system
JP2962245B2 (ja) * 1996-10-23 1999-10-12 日本電気株式会社 表示装置の階調表示方法
US6008785A (en) * 1996-11-28 1999-12-28 Texas Instruments Incorporated Generating load/reset sequences for spatial light modulator
US7471444B2 (en) 1996-12-19 2008-12-30 Idc, Llc Interferometric modulation of radiation
US6480177B2 (en) * 1997-06-04 2002-11-12 Texas Instruments Incorporated Blocked stepped address voltage for micromechanical devices
US8928967B2 (en) 1998-04-08 2015-01-06 Qualcomm Mems Technologies, Inc. Method and device for modulating light
KR100703140B1 (ko) 1998-04-08 2007-04-05 이리다임 디스플레이 코포레이션 간섭 변조기 및 그 제조 방법
US6962419B2 (en) 1998-09-24 2005-11-08 Reflectivity, Inc Micromirror elements, package for the micromirror elements, and projection system therefor
US6590549B1 (en) * 1998-12-30 2003-07-08 Texas Instruments Incorporated Analog pulse width modulation of video data
WO2003007049A1 (en) 1999-10-05 2003-01-23 Iridigm Display Corporation Photonic mems and structures
US7172296B2 (en) 2000-08-30 2007-02-06 Reflectivity, Inc Projection display
JP3723443B2 (ja) * 2000-11-17 2005-12-07 三洋電機株式会社 アクティブマトリクス型表示装置
US6782205B2 (en) 2001-06-25 2004-08-24 Silicon Light Machines Method and apparatus for dynamic equalization in wavelength division multiplexing
US7023606B2 (en) * 2001-08-03 2006-04-04 Reflectivity, Inc Micromirror array for projection TV
US6829092B2 (en) 2001-08-15 2004-12-07 Silicon Light Machines, Inc. Blazed grating light valve
US6785001B2 (en) 2001-08-21 2004-08-31 Silicon Light Machines, Inc. Method and apparatus for measuring wavelength jitter of light signal
US6800238B1 (en) 2002-01-15 2004-10-05 Silicon Light Machines, Inc. Method for domain patterning in low coercive field ferroelectrics
US6574033B1 (en) 2002-02-27 2003-06-03 Iridigm Display Corporation Microelectromechanical systems device and method for fabricating same
US7173639B2 (en) * 2002-04-10 2007-02-06 Intel Corporation Spatial light modulator data refresh without tearing artifacts
US6767751B2 (en) 2002-05-28 2004-07-27 Silicon Light Machines, Inc. Integrated driver process flow
US6839479B2 (en) 2002-05-29 2005-01-04 Silicon Light Machines Corporation Optical switch
US6822797B1 (en) 2002-05-31 2004-11-23 Silicon Light Machines, Inc. Light modulator structure for producing high-contrast operation using zero-order light
US6813059B2 (en) 2002-06-28 2004-11-02 Silicon Light Machines, Inc. Reduced formation of asperities in contact micro-structures
US6714337B1 (en) 2002-06-28 2004-03-30 Silicon Light Machines Method and device for modulating a light beam and having an improved gamma response
US6801354B1 (en) 2002-08-20 2004-10-05 Silicon Light Machines, Inc. 2-D diffraction grating for substantially eliminating polarization dependent losses
US7781850B2 (en) 2002-09-20 2010-08-24 Qualcomm Mems Technologies, Inc. Controlling electromechanical behavior of structures within a microelectromechanical systems device
US6712480B1 (en) 2002-09-27 2004-03-30 Silicon Light Machines Controlled curvature of stressed micro-structures
US7187484B2 (en) * 2002-12-30 2007-03-06 Texas Instruments Incorporated Digital micromirror device with simplified drive electronics for use as temporal light modulator
US7042622B2 (en) 2003-10-30 2006-05-09 Reflectivity, Inc Micromirror and post arrangements on substrates
US7417782B2 (en) 2005-02-23 2008-08-26 Pixtronix, Incorporated Methods and apparatus for spatial light modulation
US7046420B1 (en) 2003-02-28 2006-05-16 Silicon Light Machines Corporation MEM micro-structures and methods of making the same
US6806997B1 (en) 2003-02-28 2004-10-19 Silicon Light Machines, Inc. Patterned diffractive light modulator ribbon for PDL reduction
US6829077B1 (en) 2003-02-28 2004-12-07 Silicon Light Machines, Inc. Diffractive light modulator with dynamically rotatable diffraction plane
TW570896B (en) 2003-05-26 2004-01-11 Prime View Int Co Ltd A method for fabricating an interference display cell
US7167148B2 (en) * 2003-08-25 2007-01-23 Texas Instruments Incorporated Data processing methods and apparatus in digital display systems
US7315294B2 (en) * 2003-08-25 2008-01-01 Texas Instruments Incorporated Deinterleaving transpose circuits in digital display systems
US6888521B1 (en) * 2003-10-30 2005-05-03 Reflectivity, Inc Integrated driver for use in display systems having micromirrors
US7161728B2 (en) * 2003-12-09 2007-01-09 Idc, Llc Area array modulation and lead reduction in interferometric modulators
US7142346B2 (en) 2003-12-09 2006-11-28 Idc, Llc System and method for addressing a MEMS display
US7706050B2 (en) 2004-03-05 2010-04-27 Qualcomm Mems Technologies, Inc. Integrated modulator illumination
US7720148B2 (en) * 2004-03-26 2010-05-18 The Hong Kong University Of Science And Technology Efficient multi-frame motion estimation for video compression
US7164520B2 (en) 2004-05-12 2007-01-16 Idc, Llc Packaging for an interferometric modulator
US7551159B2 (en) 2004-08-27 2009-06-23 Idc, Llc System and method of sensing actuation and release voltages of an interferometric modulator
US7560299B2 (en) 2004-08-27 2009-07-14 Idc, Llc Systems and methods of actuating MEMS display elements
US7499208B2 (en) 2004-08-27 2009-03-03 Udc, Llc Current mode display driver circuit realization feature
US7889163B2 (en) 2004-08-27 2011-02-15 Qualcomm Mems Technologies, Inc. Drive method for MEMS devices
US7515147B2 (en) 2004-08-27 2009-04-07 Idc, Llc Staggered column drive circuit systems and methods
US7602375B2 (en) 2004-09-27 2009-10-13 Idc, Llc Method and system for writing data to MEMS display elements
WO2006037044A1 (en) 2004-09-27 2006-04-06 Idc, Llc Method and device for multistate interferometric light modulation
US7692839B2 (en) 2004-09-27 2010-04-06 Qualcomm Mems Technologies, Inc. System and method of providing MEMS device with anti-stiction coating
US8878825B2 (en) 2004-09-27 2014-11-04 Qualcomm Mems Technologies, Inc. System and method for providing a variable refresh rate of an interferometric modulator display
US7808703B2 (en) 2004-09-27 2010-10-05 Qualcomm Mems Technologies, Inc. System and method for implementation of interferometric modulator displays
US7701631B2 (en) 2004-09-27 2010-04-20 Qualcomm Mems Technologies, Inc. Device having patterned spacers for backplates and method of making the same
US7719500B2 (en) 2004-09-27 2010-05-18 Qualcomm Mems Technologies, Inc. Reflective display pixels arranged in non-rectangular arrays
US8008736B2 (en) 2004-09-27 2011-08-30 Qualcomm Mems Technologies, Inc. Analog interferometric modulator device
US7679627B2 (en) 2004-09-27 2010-03-16 Qualcomm Mems Technologies, Inc. Controller and driver features for bi-stable display
US7310179B2 (en) 2004-09-27 2007-12-18 Idc, Llc Method and device for selective adjustment of hysteresis window
US7675669B2 (en) 2004-09-27 2010-03-09 Qualcomm Mems Technologies, Inc. Method and system for driving interferometric modulators
US7626581B2 (en) 2004-09-27 2009-12-01 Idc, Llc Device and method for display memory using manipulation of mechanical response
US7136213B2 (en) 2004-09-27 2006-11-14 Idc, Llc Interferometric modulators having charge persistence
US7843410B2 (en) 2004-09-27 2010-11-30 Qualcomm Mems Technologies, Inc. Method and device for electrically programmable display
US8310441B2 (en) 2004-09-27 2012-11-13 Qualcomm Mems Technologies, Inc. Method and system for writing data to MEMS display elements
US8124434B2 (en) 2004-09-27 2012-02-28 Qualcomm Mems Technologies, Inc. Method and system for packaging a display
US7710629B2 (en) 2004-09-27 2010-05-04 Qualcomm Mems Technologies, Inc. System and method for display device with reinforcing substance
US7944599B2 (en) 2004-09-27 2011-05-17 Qualcomm Mems Technologies, Inc. Electromechanical device with optical function separated from mechanical and electrical function
US7936497B2 (en) 2004-09-27 2011-05-03 Qualcomm Mems Technologies, Inc. MEMS device having deformable membrane characterized by mechanical persistence
US7668415B2 (en) 2004-09-27 2010-02-23 Qualcomm Mems Technologies, Inc. Method and device for providing electronic circuitry on a backplate
US7893919B2 (en) 2004-09-27 2011-02-22 Qualcomm Mems Technologies, Inc. Display region architectures
US7355780B2 (en) 2004-09-27 2008-04-08 Idc, Llc System and method of illuminating interferometric modulators using backlighting
US7545550B2 (en) 2004-09-27 2009-06-09 Idc, Llc Systems and methods of actuating MEMS display elements
US7345805B2 (en) 2004-09-27 2008-03-18 Idc, Llc Interferometric modulator array with integrated MEMS electrical switches
US7920135B2 (en) 2004-09-27 2011-04-05 Qualcomm Mems Technologies, Inc. Method and system for driving a bi-stable display
US7583429B2 (en) 2004-09-27 2009-09-01 Idc, Llc Ornamental display device
US7813026B2 (en) 2004-09-27 2010-10-12 Qualcomm Mems Technologies, Inc. System and method of reducing color shift in a display
US7684104B2 (en) 2004-09-27 2010-03-23 Idc, Llc MEMS using filler material and method
US7372613B2 (en) 2004-09-27 2008-05-13 Idc, Llc Method and device for multistate interferometric light modulation
US7424198B2 (en) 2004-09-27 2008-09-09 Idc, Llc Method and device for packaging a substrate
US7446927B2 (en) 2004-09-27 2008-11-04 Idc, Llc MEMS switch with set and latch electrodes
US20060076634A1 (en) 2004-09-27 2006-04-13 Lauren Palmateer Method and system for packaging MEMS devices with incorporated getter
US7724993B2 (en) 2004-09-27 2010-05-25 Qualcomm Mems Technologies, Inc. MEMS switches with deforming membranes
US7653371B2 (en) 2004-09-27 2010-01-26 Qualcomm Mems Technologies, Inc. Selectable capacitance circuit
US7420725B2 (en) 2004-09-27 2008-09-02 Idc, Llc Device having a conductive light absorbing mask and method for fabricating same
US7289259B2 (en) 2004-09-27 2007-10-30 Idc, Llc Conductive bus structure for interferometric modulator array
US7532195B2 (en) 2004-09-27 2009-05-12 Idc, Llc Method and system for reducing power consumption in a display
US7916103B2 (en) * 2004-09-27 2011-03-29 Qualcomm Mems Technologies, Inc. System and method for display device with end-of-life phenomena
US7746529B2 (en) 2005-02-23 2010-06-29 Pixtronix, Inc. MEMS display apparatus
US8310442B2 (en) 2005-02-23 2012-11-13 Pixtronix, Inc. Circuits for controlling display apparatus
US20070205969A1 (en) 2005-02-23 2007-09-06 Pixtronix, Incorporated Direct-view MEMS display devices and methods for generating images thereon
US9082353B2 (en) 2010-01-05 2015-07-14 Pixtronix, Inc. Circuits for controlling display apparatus
US9229222B2 (en) 2005-02-23 2016-01-05 Pixtronix, Inc. Alignment methods in fluid-filled MEMS displays
US9261694B2 (en) 2005-02-23 2016-02-16 Pixtronix, Inc. Display apparatus and methods for manufacture thereof
US7999994B2 (en) 2005-02-23 2011-08-16 Pixtronix, Inc. Display apparatus and methods for manufacture thereof
US8482496B2 (en) 2006-01-06 2013-07-09 Pixtronix, Inc. Circuits for controlling MEMS display apparatus on a transparent substrate
US9158106B2 (en) 2005-02-23 2015-10-13 Pixtronix, Inc. Display methods and apparatus
US7755582B2 (en) 2005-02-23 2010-07-13 Pixtronix, Incorporated Display methods and apparatus
US7304786B2 (en) 2005-02-23 2007-12-04 Pixtronix, Inc. Methods and apparatus for bi-stable actuation of displays
US8519945B2 (en) 2006-01-06 2013-08-27 Pixtronix, Inc. Circuits for controlling display apparatus
US8159428B2 (en) 2005-02-23 2012-04-17 Pixtronix, Inc. Display methods and apparatus
US7405852B2 (en) 2005-02-23 2008-07-29 Pixtronix, Inc. Display apparatus and methods for manufacture thereof
US7304785B2 (en) 2005-02-23 2007-12-04 Pixtronix, Inc. Display methods and apparatus
US7920136B2 (en) 2005-05-05 2011-04-05 Qualcomm Mems Technologies, Inc. System and method of driving a MEMS display device
WO2006121784A1 (en) 2005-05-05 2006-11-16 Qualcomm Incorporated, Inc. Dynamic driver ic and display panel configuration
US7948457B2 (en) 2005-05-05 2011-05-24 Qualcomm Mems Technologies, Inc. Systems and methods of actuating MEMS display elements
US7355779B2 (en) 2005-09-02 2008-04-08 Idc, Llc Method and system for driving MEMS display elements
US7443716B2 (en) * 2005-11-16 2008-10-28 Miradia Inc. Spatial light modulator with four transistor electrode driver
US8391630B2 (en) 2005-12-22 2013-03-05 Qualcomm Mems Technologies, Inc. System and method for power reduction when decompressing video streams for interferometric modulator displays
KR101229280B1 (ko) * 2005-12-28 2013-02-04 삼성디스플레이 주식회사 표시 기판과, 이의 제조 방법 및 이를 구비한 표시 패널
US7795061B2 (en) 2005-12-29 2010-09-14 Qualcomm Mems Technologies, Inc. Method of creating MEMS device cavities by a non-etching process
US7916980B2 (en) 2006-01-13 2011-03-29 Qualcomm Mems Technologies, Inc. Interconnect structure for MEMS device
US8194056B2 (en) 2006-02-09 2012-06-05 Qualcomm Mems Technologies Inc. Method and system for writing data to MEMS display elements
US8526096B2 (en) 2006-02-23 2013-09-03 Pixtronix, Inc. Mechanical light modulators with stressed beams
US7903047B2 (en) 2006-04-17 2011-03-08 Qualcomm Mems Technologies, Inc. Mode indicator for interferometric modulator displays
US7711239B2 (en) 2006-04-19 2010-05-04 Qualcomm Mems Technologies, Inc. Microelectromechanical device and method utilizing nanoparticles
US8049713B2 (en) 2006-04-24 2011-11-01 Qualcomm Mems Technologies, Inc. Power consumption optimized display update
US7649671B2 (en) 2006-06-01 2010-01-19 Qualcomm Mems Technologies, Inc. Analog interferometric modulator device with electrostatic actuation and release
US7876489B2 (en) 2006-06-05 2011-01-25 Pixtronix, Inc. Display apparatus with optical cavities
US7702192B2 (en) 2006-06-21 2010-04-20 Qualcomm Mems Technologies, Inc. Systems and methods for driving MEMS display
US7835061B2 (en) 2006-06-28 2010-11-16 Qualcomm Mems Technologies, Inc. Support structures for free-standing electromechanical devices
US7777715B2 (en) 2006-06-29 2010-08-17 Qualcomm Mems Technologies, Inc. Passive circuits for de-multiplexing display inputs
US7527998B2 (en) 2006-06-30 2009-05-05 Qualcomm Mems Technologies, Inc. Method of manufacturing MEMS devices providing air gap control
US7763546B2 (en) 2006-08-02 2010-07-27 Qualcomm Mems Technologies, Inc. Methods for reducing surface charges during the manufacture of microelectromechanical systems devices
WO2008051362A1 (en) 2006-10-20 2008-05-02 Pixtronix, Inc. Light guides and backlight systems incorporating light redirectors at varying densities
CN101617354A (zh) 2006-12-12 2009-12-30 埃文斯和萨瑟兰计算机公司 用于校准单个调制器投影仪中的rgb光的系统和方法
US7682922B2 (en) * 2007-01-18 2010-03-23 International Business Machines Corporation Post STI trench capacitor
US7683416B2 (en) 2007-01-18 2010-03-23 International Business Machines Corporation Post STI trench capacitor
US9176318B2 (en) 2007-05-18 2015-11-03 Pixtronix, Inc. Methods for manufacturing fluid-filled MEMS displays
US7852546B2 (en) 2007-10-19 2010-12-14 Pixtronix, Inc. Spacers for maintaining display apparatus alignment
US7403180B1 (en) * 2007-01-29 2008-07-22 Qualcomm Mems Technologies, Inc. Hybrid color synthesis for multistate reflective modulator displays
JP4743132B2 (ja) * 2007-02-15 2011-08-10 ティアック株式会社 複数のファンクションキーを有する電子機器
US7719752B2 (en) 2007-05-11 2010-05-18 Qualcomm Mems Technologies, Inc. MEMS structures, methods of fabricating MEMS components on separate substrates and assembly of same
US8102506B2 (en) * 2007-06-26 2012-01-24 Carl Zeiss Smt Gmbh Method and device for controlling a plurality of actuators and an illumination device for lithography
TWI349996B (en) 2007-10-23 2011-10-01 Univ Nat Sun Yat Sen Trench soi-dram cell and method for making the same
US8451298B2 (en) * 2008-02-13 2013-05-28 Qualcomm Mems Technologies, Inc. Multi-level stochastic dithering with noise mitigation via sequential template averaging
US8248560B2 (en) 2008-04-18 2012-08-21 Pixtronix, Inc. Light guides and backlight systems incorporating prismatic structures and light redirectors
US8358317B2 (en) 2008-05-23 2013-01-22 Evans & Sutherland Computer Corporation System and method for displaying a planar image on a curved surface
US8702248B1 (en) 2008-06-11 2014-04-22 Evans & Sutherland Computer Corporation Projection method for reducing interpixel gaps on a viewing surface
US8169679B2 (en) 2008-10-27 2012-05-01 Pixtronix, Inc. MEMS anchors
US8077378B1 (en) 2008-11-12 2011-12-13 Evans & Sutherland Computer Corporation Calibration system and method for light modulation device
US8736590B2 (en) 2009-03-27 2014-05-27 Qualcomm Mems Technologies, Inc. Low voltage driver scheme for interferometric modulators
WO2010141767A1 (en) * 2009-06-05 2010-12-09 Qualcomm Mems Technologies, Inc. System and method for improving the quality of halftone video using an adaptive threshold
US9057695B2 (en) * 2009-09-24 2015-06-16 Canon Kabushiki Kaisha Apparatus and method for irradiating a scattering medium with a reconstructive wave
JP2013519121A (ja) 2010-02-02 2013-05-23 ピクストロニックス・インコーポレーテッド 低温封孔流体充填ディスプレイ装置を製造するための方法
CN102834859B (zh) 2010-02-02 2015-06-03 皮克斯特罗尼克斯公司 用于控制显示装置的电路
BR112012022900A2 (pt) 2010-03-11 2018-06-05 Pixtronix Inc modos de operação transflexivos e refletivos para um dispositivo de exibição
CN102834761A (zh) 2010-04-09 2012-12-19 高通Mems科技公司 机电装置的机械层及其形成方法
US8963159B2 (en) 2011-04-04 2015-02-24 Qualcomm Mems Technologies, Inc. Pixel via and methods of forming the same
US9134527B2 (en) 2011-04-04 2015-09-15 Qualcomm Mems Technologies, Inc. Pixel via and methods of forming the same
US9641826B1 (en) 2011-10-06 2017-05-02 Evans & Sutherland Computer Corporation System and method for displaying distant 3-D stereo on a dome surface
US8749538B2 (en) 2011-10-21 2014-06-10 Qualcomm Mems Technologies, Inc. Device and method of controlling brightness of a display based on ambient lighting conditions
US9230296B2 (en) * 2012-02-28 2016-01-05 Texas Instruments Incorporated Spatial and temporal pulse width modulation method for image display
US9183812B2 (en) 2013-01-29 2015-11-10 Pixtronix, Inc. Ambient light aware display apparatus
US9134552B2 (en) 2013-03-13 2015-09-15 Pixtronix, Inc. Display apparatus with narrow gap electrostatic actuators
US9759807B2 (en) * 2013-10-25 2017-09-12 Texas Instruments Incorporated Techniques for angle resolution in radar
KR102586069B1 (ko) 2015-07-03 2023-10-05 에씰로 앙터나시오날 증강 현실을 위한 방법 및 시스템
CN112599061A (zh) * 2021-01-05 2021-04-02 厦门天马微电子有限公司 阵列基板、显示面板及检测方法
WO2023075758A1 (en) * 2021-10-27 2023-05-04 New Vision Display, Inc. Diagonal addressing of electronic displays
US11842667B2 (en) 2021-10-27 2023-12-12 New Vision Display, Inc. Diagonal addressing of electronic displays

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4039890A (en) * 1974-08-16 1977-08-02 Monsanto Company Integrated semiconductor light-emitting display array
US4229732A (en) * 1978-12-11 1980-10-21 International Business Machines Corporation Micromechanical display logic and array
US4638309A (en) * 1983-09-08 1987-01-20 Texas Instruments Incorporated Spatial light modulator drive system
US4979738A (en) * 1983-12-06 1990-12-25 Midway Manufacturing Corporation Constant spatial data mass RAM video display system
KR850006095A (ko) * 1984-02-17 1985-09-28 고죠오 이꾸오 정전식 표시장치의 표시정보 교환장치
NL8402038A (nl) * 1984-06-28 1986-01-16 Philips Nv Elektroskopische beeldweergeefinrichting.
US4736202A (en) * 1984-08-21 1988-04-05 Bos-Knox, Ltd. Electrostatic binary switching and memory devices
US5096279A (en) * 1984-08-31 1992-03-17 Texas Instruments Incorporated Spatial light modulator and method
US5189406A (en) * 1986-09-20 1993-02-23 Thorn Emi Plc Display device
EP0417523B1 (en) * 1989-09-15 1996-05-29 Texas Instruments Incorporated Spatial light modulator and method
JPH04116628A (ja) * 1990-09-07 1992-04-17 Seiko Instr Inc 電気光学装置
GB9024978D0 (en) * 1990-11-16 1991-01-02 Rank Cintel Ltd Digital mirror spatial light modulator
EP0707303B1 (en) * 1990-11-16 2000-02-09 Digital Projection Limited Deformable mirror device driving circuit and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111243505A (zh) * 2018-11-29 2020-06-05 昆山工研院新型平板显示技术中心有限公司 一种像素驱动电路和显示装置
CN111243505B (zh) * 2018-11-29 2021-04-23 成都辰显光电有限公司 一种像素驱动电路和显示装置

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US5548301A (en) 1996-08-20
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