公开(公告)号：US09159277B2

公开(公告)日：2015-10-13

申请号：US13622980

申请日：2012-09-19

Applicant: Pixtronix, Inc.

Inventor： Stephen English ,  Stephen R. Lewis

IPC: G06F3/038 ,  G09G3/34

CPC classification number: G09G3/3466 ,  G09G3/346 ,  G09G2300/0473 ,  G09G2300/0842 ,  G09G2310/0248

Abstract: A display includes an array of light modulators each having a first actuator and a second actuator. A control matrix includes a circuit having a first state inverter having an output coupled to an input of a second state inverter. A data store capacitor is coupled to an input of the first inverter and configured to store a data voltage corresponding to a future pixel state of the pixel. A first update interconnect is coupled to the first state inverter and configured such that altering a voltage applied to the first update interconnect causes the first actuator to respond to the stored data voltage. A second update interconnect is coupled to the second state inverter and configured such that altering a voltage applied to the second update interconnect causes the second actuator to respond to a voltage state of the first inverter.

Abstract translation: 显示器包括每个具有第一致动器和第二致动器的光调制器阵列。 控制矩阵包括具有第一状态反相器的电路，其具有耦合到第二状态反相器的输入的输出。 数据存储电容器耦合到第一反相器的输入，并被配置为存储对应于像素的未来像素状态的数据电压。 第一更新互连耦合到第一状态反相器并且被配置为使得改变施加到第一更新互连的电压使得第一致动器响应于所存储的数据电压。 第二更新互连耦合到第二状态反相器并且被配置为使得改变施加到第二更新互连的电压使得第二致动器响应于第一反相器的电压状态。

公开(公告)号：US09134530B2

公开(公告)日：2015-09-15

申请号：US13800418

申请日：2013-03-13

Applicant: Pixtronix, Inc.

Inventor： Javier Villarreal ,  Timothy Brosnihan ,  Mark B. Andersson ,  Edward Buckley ,  Eugene Fike

IPC: G09G5/00 ,  H05K13/00 ,  G02B26/02 ,  B81B3/00

CPC classification number: G02B26/02 ,  B81B3/0054 ,  B81B2201/045 ,  G02B26/023 ,  G09G5/003

Abstract: This disclosure provides systems, methods and apparatus for modulating light to form an image on a display, as well as methods manufacturing such apparatus. The display apparatus includes shutters having asymmetric light obstructing portions extending out from opposing sides of a shutter aperture along an axis of motion of the shutter. Actuators move the shutters laterally along the axis of motion to move the shutter between fully closed, partially open, and fully open states to modulate light, thereby forming an image.

Abstract translation: 本公开提供了用于调制光以在显示器上形成图像的系统，方法和装置，以及制造这种装置的方法。 显示装置包括具有不对称光阻挡部分的快门，该光束阻挡部分沿着快门的运动轴线从快门孔的相对侧延伸出来。 致动器沿着运动轴线横向移动百叶窗，以在完全关闭，部分打开和完全打开状态之间移动快门以调制光，从而形成图像。

公开(公告)号：US09128277B2

公开(公告)日：2015-09-08

申请号：US14012505

申请日：2013-08-28

Applicant: Pixtronix, Inc.

Inventor： Jasper Lodewyk Steyn ,  Timothy J. Brosnihan ,  Joyce H. Wu ,  Mark B. Andersson ,  Richard S. Payne ,  John J. Fijol ,  Roger W. Barton ,  Nesbitt W. Hagood, IV

IPC: G02B26/00 ,  G02B26/08 ,  G02B26/02 ,  G09G3/20 ,  G09G3/34

CPC classification number: G02B26/00 ,  G02B26/02 ,  G02B26/0841 ,  G09G3/2022 ,  G09G3/3406 ,  G09G3/3433 ,  G09G2300/08 ,  G09G2310/0235 ,  G09G2320/0633

Abstract: The invention relates to a light modulator including a substrate having a surface and a modulation assembly coupled to the substrate that includes a modulation element and a first compliant beam. The first compliant beam includes a first segment that extend away from a first anchor and a second segment that extends back towards the first anchor. The length of the first segment is different than the length of the second segment.

Abstract translation: 本发明涉及一种光调制器，其包括具有表面的基板和耦合到基板的调制组件，该调制组件包括调制元件和第一柔性梁。 第一柔性梁包括从第一锚固体延伸的第一段和朝向第一锚向后延伸的第二段。 第一段的长度不同于第二段的长度。

公开(公告)号：US09082340B2

公开(公告)日：2015-07-14

申请号：US13939803

申请日：2013-07-11

Applicant: Pixtronix, Inc.

Inventor： Edward Buckley ,  Fahri Yaras ,  Ilias Pappas

IPC: G09G3/30 ,  G09G3/20 ,  G09G3/34

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20150194089A1

公开(公告)日：2015-07-09

申请号：US14172425

申请日：2014-02-04

Applicant: Pixtronix, Inc.

Inventor： Alain Blaing NADIGUEBE ,  Nada VUKOVIC-RADIC ,  Didier Henri FARENC

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G3/3433 ,  G09G2300/0819 ,  G09G2300/0823 ,  G09G2300/0842 ,  G09G2300/0871 ,  G09G2310/0251 ,  G09G2310/0256 ,  G09G2310/0262 ,  G09G2310/027 ,  G09G2310/0289 ,  G09G2310/0291 ,  G09G2320/0252 ,  G09G2330/04

Abstract: This disclosure provides systems, methods, and apparatus for providing a cascode driver circuit for providing positive and negative polarities of two or more voltages at an output node. The voltages provided by the cascode driver circuit can be used to provide voltages to various interconnects and terminals of the display apparatus. The cascode driver circuit includes a first circuit for providing a positive polarity of two or more voltages to an output node via a first set of cascode transistors and a second circuit for providing negative polarities of the two or more voltages via a second set of cascode transistors. The driver circuit includes body-effect mitigation circuitry for reducing the impact of body-effect on the performance of the driver circuit. The driver circuit also includes circuitry for reducing substrate leakage current.

Abstract translation: 本公开提供用于提供共源共栅驱动器电路的系统，方法和装置，用于在输出节点处提供两个或多个电压的正极性和负极性。 由共源共栅驱动电路提供的电压可用于向显示装置的各种互连和端子提供电压。 共射共同驱动电路包括用于经由第一组共源共栅晶体管向输出节点提供两个或多个电压的正极性的第一电路和用于经由第二组共源共栅晶体管提供两个或多个电压的负极性的第二电路 。 驱动器电路包括用于减少身体效应对驱动器电路性能的影响的身体效应减轻电路。 驱动器电路还包括用于减少衬底漏电流的电路。

公开(公告)号：US20150091932A1

公开(公告)日：2015-04-02

申请号：US14044341

申请日：2013-10-02

Applicant: Pixtronix, Inc.

Inventor： Edward Buckley

IPC: G06T11/00

CPC classification number: G06T11/001 ,  G09G3/2022 ,  G09G2310/0235 ,  G09G2340/06 ,  G09G2360/16

Abstract: This disclosure provides systems, methods and apparatus for improving power efficiency of display devices. In some implementations, a display controller receives data indicative of a plurality of pixel values included in an image frame and derives a plurality of initial component color subfields. The display controller then derives a composite color subfield including a plurality of common composite color intensity values assigned to respective pixel blocks. Each pixel block is associated with a plurality of pixels. The display controller derives a plurality of updated component color subfields based on the initial component color subfields and the composite color subfield.

Abstract translation: 本公开提供了用于提高显示装置的功率效率的系统，方法和装置。 在一些实现中，显示控制器接收指示包括在图像帧中的多个像素值的数据，并且导出多个初始分量颜色子场。 然后，显示控制器导出包括分配给各个像素块的多个公共复合颜色强度值的复合颜色子场。 每个像素块与多个像素相关联。 显示控制器基于初始分量颜色子字段和复合颜色子字段导出多个更新的分量颜色子字段。

公开(公告)号：US20150015616A1

公开(公告)日：2015-01-15

申请号：US13939803

申请日：2013-07-11

Applicant: Pixtronix, Inc.

Inventor： Edward Buckley ,  Fahri Yaras ,  Ilias Pappas

IPC: G09G3/30

CPC classification number: 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

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20150015599A1

公开(公告)日：2015-01-15

申请号：US13939789

申请日：2013-07-11

Applicant: Pixtronix, Inc.

Inventor： Fahri Yaras ,  Edward Buckley

IPC: G09G5/02 ,  G06T11/00

CPC classification number: G06T11/001 ,  G09G3/2037 ,  G09G3/3413 ,  G09G3/3426 ,  G09G3/3433 ,  G09G2310/0235 ,  G09G2320/0271 ,  G09G2320/0646 ,  G09G2330/021 ,  G09G2360/16

Abstract: This disclosure provides systems, methods and apparatus for improving power efficiency of display devices. Control logic of a display device can use content adaptive backlight control (CABC) for displaying certain image frames with reduced illumination intensity. CABC can be used to determine a scaling factor for scaling up pixel values in an image frame and for scaling down the illumination intensity of a backlight used for illuminating the image frames. The control logic can determine a number of image subframes that have been rendered imperceptible to the human visual system (HVS) due to the reduced illumination intensity of the backlight, and refrain from displaying the determined number of image subframes. The control logic can utilize the additional time made available as a result of not displaying the determined number of subframes to further improve the power efficiency of the display device and/or improve image quality.

Abstract translation: 本公开提供了用于提高显示装置的功率效率的系统，方法和装置。 显示装置的控制逻辑可以使用内容自适应背光控制（CABC）来显示具有降低的照明强度的某些图像帧。 可以使用CABC来确定用于缩放图像帧中的像素值的缩放因子，以及用于缩小用于照亮图像帧的背光的照明强度。 控制逻辑可以确定由于背光的照明强度降低而使人视觉系统（HVS）不可察觉的多个图像子帧，并且不显示所确定数量的图像子帧。 控制逻辑可以利用由于不显示确定数量的子帧而进一步提高显示设备的功率效率和/或提高图像质量的可用附加时间。

公开(公告)号：US20150015556A1

公开(公告)日：2015-01-15

申请号：US13937752

申请日：2013-07-09

Applicant: Pixtronix, Inc.

Inventor： Ilias Pappas

IPC: H01L27/12 ,  G09G3/20

CPC classification number: H01L27/1225 ,  G09G3/3433 ,  G09G2310/0267 ,  G09G2310/0286 ,  G09G2310/0291 ,  G09G2330/021 ,  G11C19/28 ,  H01L27/1255 ,  H03K19/01714 ,  H03K19/09441 ,  H03K19/20

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20150009220A1

公开(公告)日：2015-01-08

申请号：US13933962

申请日：2013-07-02

Applicant: Pixtronix, Inc.

Inventor： Joyce H. Wu

IPC: G02B26/02 ,  G06T1/20

CPC classification number: G06T1/20 ,  G02B6/353 ,  G02B26/023

Abstract: This disclosure provides systems and apparatus for restricting out-of-plane motion during light modulator operation. In one aspect, an apparatus includes a light modulator that has a conductive movable light blocking component supported over a light blocking layer. The light modulator includes an electrostatic actuator that has a drive electrode configured to move the light blocking component laterally with respect to an aperture formed through the light blocking layer. The light modulator further includes an elongated electrode separate from the drive electrode and electrically isolated from the movable light blocking component. The elongated electrode extends alongside a path traveled by the movable light blocking component for substantially the entire length of the path.

Abstract translation: 本公开提供了用于在光调制器操作期间限制平面外运动的系统和装置。 在一个方面，一种装置包括光调制器，该光调制器具有支撑在遮光层上的导电可移动遮光部件。 光调制器包括静电致动器，该静电致动器具有驱动电极，该驱动电极配置成相对于通过遮光层形成的孔横向移动遮光部件。 光调制器还包括与驱动电极分离并与可移动遮光部件电隔离的细长电极。 细长电极沿着可移动遮光部件行进的路径沿着路径的大致整个长度延伸。