公开(公告)号：US20090009871A1

公开(公告)日：2009-01-08

申请号：US11948881

申请日：2007-11-30

Applicant: James C. Dunphy ,  Stephen W. Marshall

Inventor： James C. Dunphy ,  Stephen W. Marshall

IPC: G02B5/02

CPC classification number: G03B21/56

Abstract: The invention provides an apparatus for reducing speckle in a projection visual display (PVD) system, a method of reducing visible speckle in a PVD system and a PVD system incorporating the method or apparatus. In one embodiment, the apparatus includes a diffuser interposable in an optical path of a PVD system and a diffuser actuator having a single drive axis configured to cause the diffuser to travel in a lissajous curve at least partially transverse to the optical path.

Abstract translation: 本发明提供一种用于减少投影视觉显示（PVD）系统中的斑点的装置，减少PVD系统中的可见斑点的方法以及包含该方法或装置的PVD系统。 在一个实施例中，该装置包括在PVD系统的光路中可插入的漫射器和具有单个驱动轴的扩散器致动器，该单个驱动轴构造成使漫射器至少部分地横向于光路穿过假丝带曲线。

公开(公告)号：US07403175B1

公开(公告)日：2008-07-22

申请号：US10969494

申请日：2004-10-19

Applicant: James C. Dunphy ,  William Cummings ,  Christopher J. Spindt ,  Ronald L. Hansen ,  Jun (Gordon) Liu ,  Lee Cressi ,  Colin Stanners

Inventor： James C. Dunphy ,  William Cummings ,  Christopher J. Spindt ,  Ronald L. Hansen ,  Jun (Gordon) Liu ,  Lee Cressi ,  Colin Stanners

IPC: G09G3/22

CPC classification number: G09G3/22 ,  G09G2320/0233 ,  G09G2320/0285

Abstract: Methods for compensating for brightness variations in a field emission device. In one embodiment, a method and system are described for measuring the relative brightness of rows of a field emission display (FED) device, storing information representing the measured brightness into a correction table and using the correction table to provide uniform row brightness in the display by adjusting row voltages and/or row on-time periods. A special measurement process is described for providing accurate current measurements on the rows. This embodiment compensates for brightness variations of the rows, e.g., for rows near the spacer walls. In another embodiment, a periodic signal, e.g., a high frequency noise signal, is added to the row on-time pulse in order to camouflage brightness variations in the rows near the spacer walls. In another embodiment, the area under the row on-time pulse is adjusted to provide row-by-row brightness compensation based on correction values stored in a memory resident correction table. In another embodiment, the brightness of each row is measured and compiled into a data profile for the FED. The data profile is used to control cathode burn-in processes so that brightness variations are corrected by physically altering the characteristics of the emitters of the rows.

Abstract translation: 补偿场致发射装置的亮度变化的方法。 在一个实施例中，描述了用于测量场发射显示（FED）装置的行的相对亮度的方法和系统，将表示测量的亮度的信息存储到校正表中，并且使用校正表在显示器中提供均匀的行亮度 通过调整行电压和/或行导通时间周期。 描述了一种特殊的测量过程，用于在行上提供精确的电流测量。 该实施例补偿行的亮度变化，例如用于靠近隔离壁的行。 在另一个实施例中，周期性信号，例如高频噪声信号，被添加到行准时脉冲，以伪装靠近隔离壁的行中的亮度变化。 在另一实施例中，根据存储在存储器驻留校正表中的校正值，调整行导通时间脉冲之下的面积以提供逐行亮度补偿。 在另一个实施例中，测量每行的亮度并将其编译成用于FED的数据简档。 数据轮廓用于控制阴极老化过程，从而通过物理地改变行的发射器的特性来校正亮度变化。

公开(公告)号：US06822628B2

公开(公告)日：2004-11-23

申请号：US09895985

申请日：2001-06-28

Applicant: James C. Dunphy ,  William Cummings ,  Christopher J. Spindt ,  Ronald L. Hansen ,  Jun (Gordon) Liu ,  Lee Cressi ,  Colin Stanners

Inventor： James C. Dunphy ,  William Cummings ,  Christopher J. Spindt ,  Ronald L. Hansen ,  Jun (Gordon) Liu ,  Lee Cressi ,  Colin Stanners

IPC: G09G322

CPC classification number: G09G3/22 ,  G09G2320/0233 ,  G09G2320/0285

Abstract: Methods for compensating for brightness variations in a field emission device. In one embodiment, a method and system are described for measuring the relative brightness of rows of a field emission display (FED) device, storing information representing the measured brightness into a correction table and using the correction table to provide uniform row brightness in the display by adjusting row voltages and/or row on-time periods. A special measurement process is described for providing accurate current measurements on the rows. This embodiment compensates for brightness variations of the rows, e.g., for rows near the spacer walls. In another embodiment, a periodic signal, e.g., a high frequency noise signal, is added to the row on-time pulse in order to camouflage brightness variations in the rows near the spacer walls. In another embodiment, the area under the row on-time pulse is adjusted to provide row-by-row brightness compensation based on correction values stored in a memory resident correction table. In another embodiment, the brightness of each row is measured and compiled into a data profile for the FED. The data profile is used to control cathode burn-in processes so that brightness variations are corrected by physically altering the characteristics of the emitters of the rows.

Abstract translation: 补偿场致发射装置的亮度变化的方法。 在一个实施例中，描述了用于测量场发射显示（FED）装置的行的相对亮度的方法和系统，将表示测量的亮度的信息存储到校正表中，并且使用校正表在显示器中提供均匀的行亮度 通过调整行电压和/或行导通时间周期。 描述了一种特殊的测量过程，用于在行上提供精确的电流测量。 该实施例补偿行的亮度变化，例如用于靠近隔离壁的行。 在另一个实施例中，周期性信号，例如高频噪声信号，被添加到行准时脉冲，以伪装靠近隔离壁的行中的亮度变化。 在另一实施例中，根据存储在存储器驻留校正表中的校正值，调整行导通时间脉冲之下的面积以提供逐行亮度补偿。 在另一个实施例中，测量每行的亮度并将其编译成用于FED的数据简档。 数据轮廓用于控制阴极老化过程，从而通过物理地改变行的发射器的特性来校正亮度变化。

公开(公告)号：US6051937A

公开(公告)日：2000-04-18

申请号：US87268

申请日：1998-05-29

Applicant: James C. Dunphy ,  Donald R. Schropp, Jr.

Inventor： James C. Dunphy ,  Donald R. Schropp, Jr.

IPC: G09G3/20 ,  G05F1/10 ,  G09G3/22 ,  H01J29/02 ,  H01J31/12 ,  G05F1/00

CPC classification number: G09G3/22 ,  H01J29/028 ,  H01J31/127 ,  G09G2300/043 ,  H01J2329/8625 ,  H01J2329/864 ,  H01J2329/8645

Abstract: A voltage ratio regulator circuit for a spacer electrode of a flat panel display screen. Within one implementation of a field emission display (FED) device, thin spacer walls are inserted between a high voltage (Vh) faceplate and a backplate to secure these structures as a vacuum is formed between. A phosphor layer on the faceplate receives electrons selectively emitted from discrete electron emitting areas along the backplate (cathode) thereby forming images on the faceplate. The faceplate warms relative to the backplate, as a result of energy released by the phosphor layer, thereby generating a temperature gradient along the spacer walls. The top portion of each spacer wall becomes more conductive with increased temperature and acts to attract electrons that are emitted toward the faceplate. To counter this attraction, a spacer electrode is placed along each spacer wall at a height, d, above the backplate and maintained at a voltage, Ve. Electrodes of all of the spacer walls are coupled together. The spacer electrode at Ve and the high voltage supply at Vh are both coupled to a voltage ratio regulator circuit which maintains the ratio (Ve/Vh) using voltage dividers, an operational amplifier and other circuitry. The voltage ratio regulator compensates for variations in voltage supply performance. The time constants of the voltage ratio regular circuit is tuned to be near or slightly faster than the time constant of the inherent resistance and capacitance of the spacer wall. The invention can also correct for other sources of the voltage error on the spacer walls. The invention improves the electron path accuracy for pixels located near spacer walls.

公开(公告)号：US08395837B2

公开(公告)日：2013-03-12

申请号：US11734458

申请日：2007-04-12

Applicant: Hongqin Shi ,  Gregory Schaadt ,  James C. Dunphy ,  Dmitri Simonian ,  John D. Porter

Inventor： Hongqin Shi ,  Gregory Schaadt ,  James C. Dunphy ,  Dmitri Simonian ,  John D. Porter

IPC: G02B26/00

CPC classification number: B81B3/0005 ,  B81B2201/042 ,  B81C2201/112 ,  G02B26/0833 ,  H01L21/02046 ,  H01L21/02164 ,  H01L21/3121

Abstract: A releasing and post-releasing method for making a micromirror device and a micromirror array device are disclosed herein. The releasing method removes the sacrificial materials in the micromirror and micromirror array so as to enabling movements of the movable elements in the micromirror and micromirror array device. The post-releasing method is applied to improve the performance and quality of the released micromirrors and micromirror array devices.

Abstract translation: 本文公开了用于制造微镜器件和微镜阵列器件的释放和释放方法。 释放方法去除了微反射镜和微镜阵列中的牺牲材料，以便使得微镜和微镜阵列器件中的可移动元件能够移动。 应用后释放方法来提高释放的微镜和微镜阵列器件的性能和质量。

公开(公告)号：US08031403B2

公开(公告)日：2011-10-04

申请号：US11948881

申请日：2007-11-30

Applicant: James C. Dunphy ,  Stephen W. Marshall

Inventor： James C. Dunphy ,  Stephen W. Marshall

IPC: G02B5/02 ,  G02B26/00 ,  G02B26/08 ,  G03H1/02 ,  G03B21/14 ,  H01J3/14

CPC classification number: G03B21/56

Abstract: The invention provides an apparatus for reducing speckle in a projection visual display (PVD) system, a method of reducing visible speckle in a PVD system and a PVD system incorporating the method or apparatus. In one embodiment, the apparatus includes a diffuser interposable in an optical path of a PVD system and a diffuser actuator having a single drive axis configured to cause the diffuser to travel in a lissajous curve at least partially transverse to the optical path.

Abstract translation: 本发明提供一种用于减少投影视觉显示（PVD）系统中的斑点的装置，减少PVD系统中的可见斑点的方法以及包含该方法或装置的PVD系统。 在一个实施例中，该装置包括在PVD系统的光路中可插入的漫射器和具有单个驱动轴的扩散器致动器，该单个驱动轴构造成使漫射器至少部分地横向于光路穿过假丝带曲线。

公开(公告)号：US07315115B1

公开(公告)日：2008-01-01

申请号：US09698696

申请日：2000-10-27

Applicant: Christopher J. Curtin ,  Duane A. Haven ,  George B. Hopple ,  Lawrence S. Pan ,  Igor L. Maslennikov ,  Michael J. Nystrom ,  Jun Gordon Liu ,  Randolph S. Gluck ,  Tomoo Kosugi ,  James C. Dunphy ,  David L. Morris

Inventor： Christopher J. Curtin ,  Duane A. Haven ,  George B. Hopple ,  Lawrence S. Pan ,  Igor L. Maslennikov ,  Michael J. Nystrom ,  Jun Gordon Liu ,  Randolph S. Gluck ,  Tomoo Kosugi ,  James C. Dunphy ,  David L. Morris

IPC: H01J1/62 ,  H01J63/04

CPC classification number: H01J29/481 ,  H01J1/30 ,  H01J3/021 ,  H01J9/148 ,  H01J29/467 ,  H01J29/94 ,  H01J2209/385

Abstract: A light-emitting device contains getter material (58) typically distributed in a relatively uniform manner across the device's active light-emitting portion. An electron-emitting device similarly contains getter material (112, 110/112, 128, 132, and 142) typically distributed relatively uniformly across the active electron-emitting portion of the device.

Abstract translation: 发光装置包含通常以穿过装置的主动发光部分的相对均匀的方式分布的吸气剂材料（58）。 电子发射器件类似地包含通常相对均匀地分布在器件的有源电子发射部分上的吸气剂材料（112,110 / 112,128,132和142）。

公开(公告)号：US06722935B1

公开(公告)日：2004-04-20

申请号：US09895531

申请日：2001-06-29

Applicant: James C. Dunphy ,  Christopher J. Spindt

Inventor： James C. Dunphy ,  Christopher J. Spindt

IPC: H01J924

CPC classification number: H01J29/467 ,  H01J9/185 ,  H01J9/242 ,  H01J29/028 ,  H01J29/864 ,  H01J31/127 ,  H01J2329/864 ,  H01J2329/8645 ,  H01J2329/865 ,  H01J2329/8655 ,  H01J2329/8665

Abstract: In a flat-panel display structure having a spacer with laterally segmented face electrodes, one embodiment of the present invention defines the length of the laterally segmented face electrode sections to minimize zero current shift variation in electron trajectories. Advantageously, the present embodiment of the invention prevents image quality degradation. In one embodiment, values for variation in the uniformity of and dicing tolerance are combined to calculate a design optimum for the length of laterally segmented face electrodes. Zero current shift variation from fluctuations in wall resistance falls off with the length of laterally segmented face electrodes. Zero current shift due to first order angular alignment during dicing varies linearly with the dashed electrode length. In one embodiment of the present invention, an optimal value is calculated by combining these effects to minimize zero current shift. Advantageously, in one embodiment, the electrode segments are individually testable.

Abstract translation: 在具有具有横向分割的面电极的间隔件的平板显示器结构中，本发明的一个实施例限定了横向分割的面电极部分的长度，以最小化电子轨迹中的零电流偏移变化。 有利地，本发明的本实施例防止图像质量下降。 在一个实施例中，组合均匀度和切割公差的变化值，以计算横向分割的面电极的长度的最佳设计。 零电流偏移随壁面电阻波动的变化随着横向分段面电极的长度而下降。 在切割期间由于一阶角度对准导致的零电流偏移随虚线电极长度线性变化。 在本发明的一个实施例中，通过组合这些效应来计算最佳值以将零电流偏移最小化。 有利地，在一个实施例中，电极段是可单独测试的。

公开(公告)号：US20120184067A1

公开(公告)日：2012-07-19

申请号：US11734458

申请日：2007-04-12

Applicant: Hongqin Shi ,  Gregory Schaadt ,  James C. Dunphy ,  Dmitri Simonian ,  John D. Porter

Inventor： Hongqin Shi ,  Gregory Schaadt ,  James C. Dunphy ,  Dmitri Simonian ,  John D. Porter

IPC: H01L21/50

CPC classification number: B81B3/0005 ,  B81B2201/042 ,  B81C2201/112 ,  G02B26/0833 ,  H01L21/02046 ,  H01L21/02164 ,  H01L21/3121

Abstract: A releasing and post-releasing method for making a micromirror device and a micromirror array device are disclosed herein. The releasing method removes the sacrificial materials in the micromirror and micromirror array so as to enabling movements of the movable elements in the micromirror and micromirror array device. The post-releasing method is applied to improve the performance and quality of the released micromirrors and micromirror array devices.

Abstract translation: 本文公开了用于制造微镜器件和微镜阵列器件的释放和释放方法。 释放方法去除了微反射镜和微镜阵列中的牺牲材料，以便使得微镜和微镜阵列器件中的可移动元件能够移动。 应用后释放方法来提高释放的微镜和微镜阵列器件的性能和质量。

公开(公告)号：US20120019918A1

公开(公告)日：2012-01-26

申请号：US13251904

申请日：2011-10-03

Applicant: James C. Dunphy ,  Stephen W. Marshall

Inventor： James C. Dunphy ,  Stephen W. Marshall

IPC: G02B5/02

CPC classification number: G03B21/56

Abstract: The disclosure provides an apparatus for reducing speckle in a projection visual display (PVD) system, a method of reducing visible speckle in a PVD system and a PVD system incorporating the method or apparatus. In one embodiment, the apparatus includes a diffuser interposable in an optical path of a PVD system and a diffuser actuator having a single drive axis configured to cause the diffuser to travel in a Lissajous curve at least partially transverse to the optical path.

Abstract translation: 本公开提供了一种用于减少投影视觉显示（PVD）系统中的斑点的装置，减少PVD系统中的可见散斑的方法和包含该方法或装置的PVD系统。 在一个实施例中，该装置包括可在PVD系统的光路中插入的漫射器和具有单个驱动轴的扩散器致动器，该单个驱动轴构造成使扩散器至少部分地横向于光路穿过利萨如曲线。