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公开(公告)号：US20170092183A1
公开(公告)日：2017-03-30
申请号：US14864330
申请日：2015-09-24
申请人： Pixtronix, Inc.
发明人： Ilias Pappas , Yu-Hsuan Li , Sean Lord
IPC分类号： G09G3/20
CPC分类号： G09G3/2092 , G09G3/3433 , G09G2300/0819 , G09G2300/0842
摘要： This disclosure provides systems, methods and apparatus for controlling the states of a light modulator used in displays. A display apparatus includes pixels circuit for controlling the state of operation of dual actuator light modulators. The pixel circuit can be implemented using three transistors and a capacitor. In particular, the pixel circuit can include a charge-discharge transistor, a data transistor, and a feedback transistor. The charge-discharge transistor is used to both selectively charge and selectively discharge an output node of the pixel circuit coupled to the light modulator. The data transistor enables loading a data capacitor with data voltage representative of image data. The feedback transistor provides positive feedback to allow the output node to be charged to the actuation voltage via the charge-discharge transistor.
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公开(公告)号：US09378686B2
公开(公告)日：2016-06-28
申请号：US14267687
申请日：2014-05-01
申请人： Pixtronix, Inc.
发明人： Ilias Pappas
IPC分类号： G09G3/34
CPC分类号： G09G3/3433 , G09G3/3473 , G09G2300/0842 , G09G2310/0251 , G09G2310/0275 , G09G2320/0266 , G09G2340/16
摘要： This disclosure provides systems, methods, and apparatus for providing pixel circuits for controlling the state of operation of light modulators in a display device. The state of operation of the light modulator can be controlled by the pixel circuit based on a data voltage stored in a data storage element of the pixel circuit. The pixel circuit includes an actuation circuit for providing an actuation voltage to the light modulator and a feedback circuit for providing a positive feedback voltage from an output node of the actuation circuit to an input node of the actuation circuit. In some implementations, the feedback circuit includes the data storage element connected between the input node and the output node.
摘要翻译： 本公开提供了用于提供用于控制显示装置中的光调制器的操作状态的像素电路的系统，方法和装置。 基于存储在像素电路的数据存储元件中的数据电压，可以通过像素电路来控制光调制器的操作状态。 像素电路包括用于向光调制器提供致动电压的致动电路和用于从致动电路的输出节点向致动电路的输入节点提供正反馈电压的反馈电路。 在一些实现中，反馈电路包括连接在输入节点和输出节点之间的数据存储元件。
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公开(公告)号：US09082340B2
公开(公告)日：2015-07-14
申请号：US13939803
申请日：2013-07-11
申请人： Pixtronix, Inc.
发明人： Edward Buckley , Fahri Yaras , Ilias Pappas
CPC分类号： G09G3/30 , G09G3/2022 , G09G3/2029 , G09G3/3433 , G09G2300/0819 , G09G2300/0842 , G09G2310/0235 , G09G2310/0237 , G09G2310/0251 , G09G2320/045 , G09G2320/0633 , G09G2320/064 , G09G2330/021 , G09G2330/028 , G09G2360/144
摘要： This disclosure provides systems, methods and apparatus for providing analog control for operating the states of a light modulator in a pixel. In one aspect, a pixel circuit can be coupled to the light modulator, and can control the duration for which the light modulator is operated in an open or closed state based on an analog data voltage. In some implementations, the pixel circuit includes a voltage controlled current source (VCCS), which draws a current of a magnitude that is based on the magnitude of the data voltage. The current drawn by the VCCS can be used to control a charge and a voltage on an actuation capacitor coupled to the light modulator. The rate of change of the voltage on the actuation capacitor, and the duration for which the light modulator is maintained in a particular state, is a function of the data voltage applied to the VCCS.
摘要翻译： 本公开提供了用于提供用于操作像素中的光调制器的状态的模拟控制的系统，方法和装置。 在一个方面，像素电路可以耦合到光调制器，并且可以基于模拟数据电压来控制光调制器在打开或关闭状态下操作的持续时间。 在一些实施方案中，像素电路包括电压控制电流源（VCCS），其根据数据电压的幅度绘制大小的电流。 由VCCS引出的电流可用于控制耦合到光调制器的致动电容器上的电荷和电压。 致动电容器上的电压变化率以及光调制器在特定状态下保持的持续时间是施加到VCCS的数据电压的函数。
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公开(公告)号：US20150015616A1
公开(公告)日：2015-01-15
申请号：US13939803
申请日：2013-07-11
申请人： Pixtronix, Inc.
发明人： Edward Buckley , Fahri Yaras , Ilias Pappas
IPC分类号： G09G3/30
CPC分类号： G09G3/30 , G09G3/2022 , G09G3/2029 , G09G3/3433 , G09G2300/0819 , G09G2300/0842 , G09G2310/0235 , G09G2310/0237 , G09G2310/0251 , G09G2320/045 , G09G2320/0633 , G09G2320/064 , G09G2330/021 , G09G2330/028 , G09G2360/144
摘要： This disclosure provides systems, methods and apparatus for providing analog control for operating the states of a light modulator in a pixel. In one aspect, a pixel circuit can be coupled to the light modulator, and can control the duration for which the light modulator is operated in an open or closed state based on an analog data voltage. In some implementations, the pixel circuit includes a voltage controlled current source (VCCS), which draws a current of a magnitude that is based on the magnitude of the data voltage. The current drawn by the VCCS can be used to control a charge and a voltage on an actuation capacitor coupled to the light modulator. The rate of change of the voltage on the actuation capacitor, and the duration for which the light modulator is maintained in a particular state, is a function of the data voltage applied to the VCCS.
摘要翻译： 本公开提供了用于提供用于操作像素中的光调制器的状态的模拟控制的系统，方法和装置。 在一个方面，像素电路可以耦合到光调制器，并且可以基于模拟数据电压来控制光调制器在打开或关闭状态下操作的持续时间。 在一些实施方案中，像素电路包括电压控制电流源（VCCS），其根据数据电压的幅度绘制大小的电流。 由VCCS引出的电流可用于控制耦合到光调制器的致动电容器上的电荷和电压。 致动电容器上的电压变化率以及光调制器在特定状态下保持的持续时间是施加到VCCS的数据电压的函数。
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公开(公告)号：US20150015556A1
公开(公告)日：2015-01-15
申请号：US13937752
申请日：2013-07-09
申请人： Pixtronix, Inc.
发明人： Ilias Pappas
CPC分类号： H01L27/1225 , G09G3/3433 , G09G2310/0267 , G09G2310/0286 , G09G2310/0291 , G09G2330/021 , G11C19/28 , H01L27/1255 , H03K19/01714 , H03K19/09441 , H03K19/20
摘要： This disclosure provides systems, methods and apparatus for an all n-type transistor inverter circuit. A circuit can include an input thin film transistor (TFT), a pull-down TFT, a discharge TFT, a first pull-up TFT, a second pull-up TFT, and a floating capacitor. The circuit also can include first and second low-voltage voltage sources and first and second high-voltage voltage sources. The TFTs, the capacitor, and the voltage sources can be coupled such that an output of the circuit is the logical opposite of an input of the circuit. In some implementations, the circuit can exhibit zero DC current in both logic states and can output voltages substantially equal to the voltage output by the first low-voltage voltage source and the second high-voltage voltage source. In some implementations, the circuit can be used to construct D flip-flops, buffers, and controllers for an active matrix electronic display.
摘要翻译： 本公开提供了用于全n型晶体管反相器电路的系统，方法和装置。 电路可以包括输入薄膜晶体管（TFT），下拉式TFT，放电TFT，第一上拉TFT，第二上拉TFT和浮动电容器。 电路还可以包括第一和第二低压电压源以及第一和第二高压电压源。 TFT，电容器和电压源可以被耦合，使得电路的输出与电路的输入逻辑相反。 在一些实施方案中，电路可以在两个逻辑状态下呈现零直流电流，并且可以输出基本上等于由第一低压电压源和第二高压电压源输出的电压的电压。 在一些实现中，该电路可用于构建用于有源矩阵电子显示器的D触发器，缓冲器和控制器。
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公开(公告)号：US09214475B2
公开(公告)日：2015-12-15
申请号：US13937752
申请日：2013-07-09
申请人： Pixtronix, Inc.
发明人： Ilias Pappas
IPC分类号： G09G3/20 , H01L27/12 , G09G3/34 , G11C19/28 , H03K19/0944 , H03K19/017 , H03K19/20
CPC分类号： H01L27/1225 , G09G3/3433 , G09G2310/0267 , G09G2310/0286 , G09G2310/0291 , G09G2330/021 , G11C19/28 , H01L27/1255 , H03K19/01714 , H03K19/09441 , H03K19/20
摘要： This disclosure provides systems, methods and apparatus for an all n-type transistor inverter circuit. A circuit can include an input thin film transistor (TFT), a pull-down TFT, a discharge TFT, a first pull-up TFT, a second pull-up TFT, and a floating capacitor. The circuit also can include first and second low-voltage voltage sources and first and second high-voltage voltage sources. The TFTs, the capacitor, and the voltage sources can be coupled such that an output of the circuit is the logical opposite of an input of the circuit. In some implementations, the circuit can exhibit zero DC current in both logic states and can output voltages substantially equal to the voltage output by the first low-voltage voltage source and the second high-voltage voltage source. In some implementations, the circuit can be used to construct D flip-flops, buffers, and controllers for an active matrix electronic display.
摘要翻译： 本公开提供了用于全n型晶体管反相器电路的系统，方法和装置。 电路可以包括输入薄膜晶体管（TFT），下拉式TFT，放电TFT，第一上拉TFT，第二上拉TFT和浮动电容器。 电路还可以包括第一和第二低压电压源以及第一和第二高压电压源。 TFT，电容器和电压源可以被耦合，使得电路的输出与电路的输入逻辑相反。 在一些实施方案中，电路可以在两个逻辑状态下呈现零直流电流，并且可以输出基本上等于由第一低压电压源和第二高压电压源输出的电压的电压。 在一些实现中，该电路可用于构建用于有源矩阵电子显示器的D触发器，缓冲器和控制器。
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7.发明申请公开(公告)号：US20150192772A1
公开(公告)日：2015-07-09
申请号：US14585452
申请日：2014-12-30
申请人： Pixtronix, Inc.
CPC分类号： G02B26/023 , G09G3/3406 , G09G3/3466 , G09G2300/08 , G09G2300/0819 , G09G2300/0876 , G09G2310/0251 , G09G2310/0254 , G09G2320/0214 , G09G2320/0233 , G09G2320/0626
摘要： This disclosure provides systems, methods, and apparatus for providing pixel circuits for controlling the state of operation of light modulators in a display. A pixel circuit used to control one or more display elements of a MEMS display apparatus can include a first output node coupled to a first actuator of a display element and a second output node coupled to a second actuator of the display element. The first output node can be coupled to an actuation interconnect via a first pre-charge switch connected in parallel with a first capacitor. The second output node can be connected to the actuation interconnect via a second pre-charge switch connected in parallel with a second capacitor. Energizing the first output node or the second output node can cause the display element to enter or remain in a first state or a second state, respectively.
摘要翻译： 本公开提供了用于提供用于控制显示器中的光调制器的操作状态的像素电路的系统，方法和装置。 用于控制MEMS显示装置的一个或多个显示元件的像素电路可以包括耦合到显示元件的第一致动器的第一输出节点和耦合到显示元件的第二致动器的第二输出节点。 第一输出节点可以经由与第一电容器并联连接的第一预充电开关耦合到致动互连。 第二输出节点可以经由与第二电容器并联连接的第二预充电开关连接到致动互连。 激活第一输出节点或第二输出节点可以使显示元件分别进入或保持在第一状态或第二状态。
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公开(公告)号：US20160163278A1
公开(公告)日：2016-06-09
申请号：US14563590
申请日：2014-12-08
申请人： Pixtronix, Inc.
发明人： Ilias Pappas , Cait Ni Chleirigh
IPC分类号： G09G5/00
CPC分类号： G09G5/00 , G09G3/006 , G09G2300/0842 , G09G2300/0866 , G09G2310/0251 , G09G2320/029
摘要： This disclosure provides systems, methods and apparatus for adjusting a voltage applied to a transistor based on a change in an electrical characteristic. In one aspect, a system includes an array of display elements each including an electrical element having a first terminal and a transistor. Each electrical element is capable of at least a first and a second configuration based on an electrical state of the transistor. A current sensor is capable of sensing a current through at least one of the transistors. A compensation circuit compares the current with a reference current and provides at least one adjustment signal. A display driver provides an update voltage based on the at least one adjustment signal, and also provides a data signal for each of the display elements. The electrical state of each of the transistors is based on the update voltage and the data signal.
摘要翻译： 本公开提供了用于基于电特性的变化来调整施加到晶体管的电压的系统，方法和装置。 在一个方面，一种系统包括一组显示元件，每个显示元件包括具有第一端子和晶体管的电气元件。 每个电气元件能够基于晶体管的电状态至少第一和第二配置。 电流传感器能够感测通过至少一个晶体管的电流。 补偿电路将电流与参考电流进行比较，并提供至少一个调整信号。 显示驱动器基于至少一个调整信号提供更新电压，并且还为每个显示元件提供数据信号。 每个晶体管的电状态基于更新电压和数据信号。
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公开(公告)号：US20150317935A1
公开(公告)日：2015-11-05
申请号：US14267687
申请日：2014-05-01
申请人： Pixtronix, Inc.
发明人： Ilias Pappas
IPC分类号： G09G3/34
CPC分类号： G09G3/3433 , G09G3/3473 , G09G2300/0842 , G09G2310/0251 , G09G2310/0275 , G09G2320/0266 , G09G2340/16
摘要： This disclosure provides systems, methods, and apparatus for providing pixel circuits for controlling the state of operation of light modulators in a display device. The state of operation of the light modulator can be controlled by the pixel circuit based on a data voltage stored in a data storage element of the pixel circuit. The pixel circuit includes an actuation circuit for providing an actuation voltage to the light modulator and a feedback circuit for providing a positive feedback voltage from an output node of the actuation circuit to an input node of the actuation circuit. In some implementations, the feedback circuit includes the data storage element connected between the input node and the output node.
摘要翻译： 本公开提供了用于提供用于控制显示装置中的光调制器的操作状态的像素电路的系统，方法和装置。 基于存储在像素电路的数据存储元件中的数据电压，可以通过像素电路来控制光调制器的操作状态。 像素电路包括用于向光调制器提供致动电压的致动电路和用于从致动电路的输出节点向致动电路的输入节点提供正反馈电压的反馈电路。 在一些实现中，反馈电路包括连接在输入节点和输出节点之间的数据存储元件。
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