-
公开(公告)号:US08743077B1
公开(公告)日:2014-06-03
申请号:US12182024
申请日:2008-07-29
申请人: Robert A. Sprague
发明人: Robert A. Sprague
IPC分类号: G06F3/041
CPC分类号: G06F1/1643 , G06F1/1662 , G06F3/0412
摘要: The present invention relates to a front light system which can be built with thin film light emitting diodes (LEDs), such as organic light emitting diodes (OLEDs) or electro-luminescent light emitting diodes. The front light system may be built on a thin and flexible substrate and can generate lighting of satisfactory uniformity and with high efficiency. The system also can potentially be inexpensive. The front light system of the present invention is particularly suitable for keymat applications wherein a flexible reflective display on top of a touch sensitive surface or device, is used as an output device.
摘要翻译: 本发明涉及一种可以用诸如有机发光二极管(OLED)或电致发光二极管的薄膜发光二极管(LED)构建的前光系统。 前照灯系统可以建立在薄而柔性的基板上,并可以产生令人满意的均匀性和高效率的照明。 该系统也可能是便宜的。 本发明的前灯系统特别适用于将触敏表面或设备顶部的柔性反射显示器用作输出装置的键盘应用。
-
公开(公告)号:US08605354B2
公开(公告)日:2013-12-10
申请号:US13371293
申请日:2012-02-10
申请人: Xiaojia Zhang , Craig Lin , Robert A. Sprague
发明人: Xiaojia Zhang , Craig Lin , Robert A. Sprague
CPC分类号: G09G3/344 , G02F1/167 , G02F2001/1678 , G02F2203/34 , G09F9/372 , G09G3/2003 , G09G3/3446 , G09G2300/0443 , G09G2300/0452
摘要: The present invention is directed to a color display comprising an electrophoretic fluid comprising two types of pigment particles of contrasting colors and carrying opposite charge polarities dispersed in a clear and colorless solvent, wherein said electrophoretic fluid is sandwiched between a common electrode and a plurality of colored sub-pixel electrodes or colored pixel electrodes.
-
公开(公告)号:US08503063B2
公开(公告)日:2013-08-06
申请号:US12644888
申请日:2009-12-22
申请人: Robert A. Sprague
发明人: Robert A. Sprague
IPC分类号: G02B26/00
CPC分类号: G02F1/167 , G02F2001/1672
摘要: The present invention is directed to a multicolor display comprising a plurality of microcups, wherein (a) the microcups are separated by partition walls; (b) each of the microcups is filled with a display fluid comprising white charged pigment particles dispersed in a solvent of a dark color, (c) the microcups are sandwiched between a first layer and a second layer wherein the first layer comprises a common electrode and the second layer comprises a plurality of pixel electrode, and (d) each of the microcups is capable of displaying the white color state, a dark color state and a medium color state.
摘要翻译: 本发明涉及一种包括多个微杯的多色显示器,其中(a)所述微杯由分隔壁隔开; (b)每个微杯充满包含分散在深色溶剂中的白色带电颜料颗粒的显示液,(c)微杯夹在第一层和第二层之间,其中第一层包括公共电极 并且第二层包括多个像素电极,(d)每个微型杯可以显示白色状态,深色状态和中等颜色状态。
-
公开(公告)号:US20120134010A1
公开(公告)日:2012-05-31
申请号:US13300178
申请日:2011-11-18
申请人: Robert A. Sprague , Xiaojia Wang
发明人: Robert A. Sprague , Xiaojia Wang
CPC分类号: G02F1/167
摘要: This invention relates to an electrophoretic display fluid comprising a non-mobile or semi-mobile phase and two types of charged pigment particles dispersed in a solvent or solvent mixture, and an electrophoretic display device utilizing such an electrophoretic display fluid. The electrophoretic fluid of the present invention provides improved image qualities.
摘要翻译: 本发明涉及包含非流动或半流动相和分散在溶剂或溶剂混合物中的两种类型的带电颜料颗粒的电泳显示液,以及使用这种电泳显示液的电泳显示装置。 本发明的电泳液提供了改进的图像质量。
-
公开(公告)号:US07671834B2
公开(公告)日:2010-03-02
申请号:US11198171
申请日:2005-08-08
申请人: Robert A. Sprague
发明人: Robert A. Sprague
IPC分类号: G09G3/34
CPC分类号: G06F3/0412 , G02B26/026 , G06F3/03545 , G06F3/046
摘要: An electric writable medium having islanded surface structures operationally configured to avoid tribocharging of the electric writable medium.
摘要翻译: 一种具有岛状表面结构的电可写介质,其操作上构造为避免电可写介质的摩擦充电。
-
公开(公告)号:US20090273827A1
公开(公告)日:2009-11-05
申请号:US12432519
申请日:2009-04-29
申请人: Craig Lin , Robert A. Sprague
发明人: Craig Lin , Robert A. Sprague
IPC分类号: G02F1/167
CPC分类号: G09G3/3446 , G09G2300/0452
摘要: The present invention is directed to color display devices in which each display cell is capable of displaying three color states. The display fluid filled in the display cells comprises two types of pigment particles. The color display device may further comprise a brightness enhancement structure on its viewing side.
摘要翻译: 本发明涉及彩色显示装置,其中每个显示单元能够显示三种颜色状态。 填充在显示单元中的显示液包含两种类型的颜料颗粒。 彩色显示装置还可以在其观看侧包括亮度增强结构。
-
公开(公告)号:US20090096745A1
公开(公告)日:2009-04-16
申请号:US12249267
申请日:2008-10-10
申请人: Robert A. Sprague , Bryan Hans Chan , Yajuan Chen , Haiyan Gu , Craig Lin , Andrew Ho , Tin Pham , Wanheng Wang
发明人: Robert A. Sprague , Bryan Hans Chan , Yajuan Chen , Haiyan Gu , Craig Lin , Andrew Ho , Tin Pham , Wanheng Wang
IPC分类号: G09G3/34
CPC分类号: G09G3/344 , G09G3/20 , G09G2320/041 , G09G2320/043 , G09G2320/0606 , G09G2320/066 , G09G2320/0693 , G09G2360/145
摘要: The present invention is directed to methods for adjusting or selecting driving waveforms in order to achieve a consistent optical performance of a display device. When a method of the present invention is applied, even if there are changes in the display medium due to temperature variation, photo-exposure or aging, the optical performance can be maintained at a desired level.
摘要翻译: 本发明涉及用于调整或选择驱动波形的方法,以便实现显示装置的一致的光学性能。 当应用本发明的方法时,即使由于温度变化,照相曝光或老化而导致显示介质发生变化,也可以将光学性能保持在期望的水平。
-
公开(公告)号:US07479942B2
公开(公告)日:2009-01-20
申请号:US10877382
申请日:2004-06-25
申请人: Robert A. Sprague , Tin Pham
发明人: Robert A. Sprague , Tin Pham
CPC分类号: G02F1/133348 , G02F1/167
摘要: Methods and systems for writing and erasing electric writeable media are disclosed. An electric writeable medium may include a backplane electrode, a display layer including a plurality of elements and a top layer. The medium may further include a plurality of island electrodes. To enable writing to the medium, a stylus is charged to a positive voltage and the backplane electrode is grounded. The stylus is applied to the top layer and/or the island electrodes to deposit charge, which causes proximate elements to display a first color. If the top layer is a resistive layer, grounding the resistive layer and applying a positive voltage to the backplane electrode sufficient to change the displayed color of the elements erases the medium. If the top layer is a photoconductive layer, a light source is further required to enable the photoconductive layer to operate as an electrode when erasing the medium.
摘要翻译: 公开了写入和擦除电可写介质的方法和系统。 电可写介质可以包括背板电极,包括多个元件的显示层和顶层。 介质还可以包括多个岛电极。 为了能够写入介质,触笔被充电到正电压,而背板电极接地。 将触针施加到顶层和/或岛电极以沉积电荷,这导致邻近元件显示第一颜色。 如果顶层是电阻层,则将电阻层接地并向背板电极施加足够的正电压以改变元件的显示颜色擦除介质。 如果顶层是光电导层,则还需要光源以使光电导层在擦除介质时能够作为电极工作。
-
公开(公告)号:US20080218471A1
公开(公告)日:2008-09-11
申请号:US11767320
申请日:2007-06-22
申请人: Jerry Chung , Rong-Chang Liang , Robert A. Sprague
发明人: Jerry Chung , Rong-Chang Liang , Robert A. Sprague
IPC分类号: G09G3/34
CPC分类号: G02F1/167 , G02F1/133382 , G02F1/133385
摘要: An electrophoretic display (EPD) with thermal control is disclosed for controlling and maintaining an image in extreme temperature environments. Techniques are also disclosed for maintaining the EPD cell threshold voltage for EPD cells comprising an EPD display media at or above a desired level in an environment in which the EPD may be subjected to an extreme temperature. The techniques comprise sensing a sensed temperature associated with the EPD display media, determining whether the sensed temperature satisfies a criterion established to ensure that the display media temperature remains at a level associated with an acceptable EPD cell threshold voltage, and in the event it is determined that the sensed temperature does not satisfy the criterion, controlling the EPD display media temperature as required to bring the sensed temperature to a level that satisfies the criterion.
摘要翻译: 公开了一种具有热控制的电泳显示器(EPD),用于在极端温度环境中控制和维护图像。 还公开了用于在EPD可能经受极端温度的环境中维持包含EPD显示介质的EPD单元的EPD单元阈值电压等于或高于期望水平的技术。 这些技术包括感测与EPD显示介质相关联的感测温度,确定所感测的温度是否满足建立以确保显示介质温度保持在与可接受的EPD单元阈值电压相关联的水平的标准,以及在确定的情况下 感测到的温度不满足标准,根据需要控制EPD显示介质温度,以使检测到的温度达到满足标准的水平。
-
公开(公告)号:US5744732A
公开(公告)日:1998-04-28
申请号:US811987
申请日:1997-03-05
申请人: Joel A. Kubby , Eric Peeters , R. Enrique Viturro , Fred F. Hubble, III , Stanley J. Wallace , Alan J. Werner, Jr. , Warren B. Jackson , David K. Biegelsen , Lars-Erik Swartz , Raj B. Apte , Robert A. Sprague , James G. Chase
发明人: Joel A. Kubby , Eric Peeters , R. Enrique Viturro , Fred F. Hubble, III , Stanley J. Wallace , Alan J. Werner, Jr. , Warren B. Jackson , David K. Biegelsen , Lars-Erik Swartz , Raj B. Apte , Robert A. Sprague , James G. Chase
CPC分类号: G01G17/02
摘要: A system for transporting a sheet of material including an actuator, a position sensing system, and a tactile sensor system. The actuator imparts a known force to a sheet, moving it through to the position sensing system, which measures the sheet velocity at various points. Afterward, the sheet moves through the tactile sensor system, which determines the coefficient of friction of the sheet. Given these quantities, a controller can determine the mass of the sheet, which can be used alter the performance of the sheet transport system.
摘要翻译: 一种用于运输包括致动器,位置感测系统和触觉传感器系统的材料片的系统。 致动器向片材施加已知的力,将其移动到位置感测系统,该位置感测系统测量各个点处的片材速度。 之后,纸张移动通过触觉传感器系统,这决定了纸张的摩擦系数。 给定这些数量,控制器可以确定纸张的质量,可以改变纸张传送系统的性能。
-
-
-
-
-
-
-
-
-