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公开(公告)号：US07327423B2
公开(公告)日：2008-02-05
申请号：US10961095
申请日：2004-10-08
申请人： Achintya K. Bhowmik
发明人： Achintya K. Bhowmik
IPC分类号： G02F1/1335
CPC分类号： G02B5/3083 , G02F1/13363 , G02F1/136277
摘要： Phase retardation compensation can be achieved in liquid crystal-on-silicon imagers by stress freezing a photoelastic medium. As a result, a simple, one-piece compensator for the residual birefringence of the imagers may be provided in some cases. The stress may be frozen by subjecting a photoelastic material to a desired stress and temperature regime, resulting in a material which exhibits birefringence due to a stress level which is fixed or frozen at the molecular level within the material.
摘要翻译： 通过应力冷冻光弹介质可以在液晶硅上成像器中实现相位延迟补偿。 结果，在一些情况下可以提供用于成像器的残留双折射的简单的一体式补偿器。 可以通过使光弹性材料经受所需的应力和温度状态来使应力冷冻，导致由于在材料内分子水平固定或冷冻的应力水平而显示出双折射的材料。
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公开(公告)号：US07325928B2
公开(公告)日：2008-02-05
申请号：US11057458
申请日：2005-02-14
摘要： A projection display may be formed by an imager which creates a portion of each of a plurality of spatially separated segments which together make up an overall image. The imager may produce one of those segments at any given instant of time. That segment is then replicated to fill each of the segments that form the overall image area. However, the segments that correspond to locations where that image portion should not exist are filtered out so that only one image portion for the correct segment is displayed. Each of the other segments may be produced in a time sequential fashion so that sequentially the segments fill the entire image. Thus, using this technique, substantially higher resolution may be achieved from a projection display system using fewer number of pixels in the microdisplay, in some embodiments.
摘要翻译： 投影显示可以由成像器形成，其创建多个空间分离的片段中的每一个的一部分，这些片段一起构成整体图像。 成像器可以在任何给定的时刻产生这些片段中的一个。 然后复制该段以填充形成整个图像区域的每个段。 然而，对应于该图像部分不应存在的位置的段被过滤掉，使得仅显示用于正确段的仅一个图像部分。 可以以时间顺序的方式产生每个其它段，使得顺序地，段填充整个图像。 因此，在一些实施例中，使用该技术，可以从使用较少数量的像素的投影显示系统实现更高的分辨率。
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公开(公告)号：US20070279407A1
公开(公告)日：2007-12-06
申请号：US11442798
申请日：2006-05-30
IPC分类号： G09G5/00
CPC分类号： G09G5/005 , G06F3/14 , G09G5/006 , G09G2320/041 , G09G2330/021 , G09G2340/0435
摘要： Some embodiments describe techniques that may relate to switching of display refresh rates. In one embodiment, modification of a display refresh rate may be initiated after the last pixel of a portion of a first image frame is driven. Other embodiments are also described.
摘要翻译： 一些实施例描述了可能涉及显示刷新率的切换的技术。 在一个实施例中，可以在驱动第一图像帧的一部分的最后一个像素之后启动显示刷新率的修改。 还描述了其它实施例。
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公开(公告)号：US09538624B2
公开(公告)日：2017-01-03
申请号：US13997599
申请日：2011-12-29
CPC分类号： H05B37/0281 , G09G3/342 , G09G2310/08
摘要： An apparatus may include a backlight for illuminating a liquid crystal display and a control module for controlling the illumination of the backlight. The control module may alternate between turning the backlight on and off at a first frequency and turning the backlight on and off at a second frequency.
摘要翻译： 装置可以包括用于照亮液晶显示器的背光源和用于控制背光照明的控制模块。 控制模块可以在以第一频率打开和关闭背光之间交替，并以第二频率打开和关闭背光。
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公开(公告)号：US20140218349A1
公开(公告)日：2014-08-07
申请号：US14071605
申请日：2013-11-04
IPC分类号： G09G3/36
CPC分类号： G09G3/36 , G09G3/3611 , G09G2320/0261 , G09G2320/103 , G09G2330/021 , G09G2340/0435
摘要： Some embodiments describe techniques that relate to power efficient, high frequency displays with motion blur mitigation. In one embodiment, the refresh rate of a display device may be dynamically modified, e.g., to reduce power consumption and/or reduce motion blur. Other embodiments are also described.
摘要翻译： 一些实施例描述了与具有运动模糊减轻的功率高效，高频率显示相关的技术。 在一个实施例中，可以动态地修改显示设备的刷新率，例如以减少功耗和/或减少运动模糊。 还描述了其它实施例。
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16.发明申请公开(公告)号：US20140007224A1
公开(公告)日：2014-01-02
申请号：US13539034
申请日：2012-06-29
申请人： Ning Lu , Achintya K. Bhowmik , Michael M. Chu
发明人： Ning Lu , Achintya K. Bhowmik , Michael M. Chu
CPC分类号： G06F21/32 , G06F2221/2133 , G06K9/00288 , G06K9/00906 , H04L9/3231 , H04L63/0861
摘要： Real human detection and confirmation in personal credential verification is described. In one example, a camera image of a user is received at a computer system. The image is tested for recognition against a user account and it is confirmed that the image corresponds to a real human. If the image is authenticated and corresponds to a real human, then the user is authenticated to the corresponding user account of the computer system.
摘要翻译： 描述了真实的人身检测和个人凭证验证确认。 在一个示例中，在计算机系统处接收用户的相机图像。 测试图像以对用户帐户进行识别，并确认图像对应于真人。 如果图像被认证并对应于真正的人，则用户被认证到计算机系统的相应用户帐户。
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17.发明申请METHOD AND APPARATUS TO GENERATE AND MONITOR OPTICAL SIGNALS AND CONTROL POWER LEVELS THEREOF IN A PLANAR LIGHTWAVE CIRCUIT 有权用于生成和监视光信号的方法和装置，并控制其在平面照明电路中的功率水平公开(公告)号：US20100296773A1
公开(公告)日：2010-11-25
申请号：US12847117
申请日：2010-07-30
申请人： Achintya K. Bhowmik , Nagesh K. Vodrahalli , Gennady Farber , Hai-Feng Liu , Hamid Eslampour , Ut Tran , William B. Wong , Ruolin Lin , Jesper Arentoft Jayaswal
发明人： Achintya K. Bhowmik , Nagesh K. Vodrahalli , Gennady Farber , Hai-Feng Liu , Hamid Eslampour , Ut Tran , William B. Wong , Ruolin Lin , Jesper Arentoft Jayaswal
CPC分类号： H01S5/141 , H01L2224/48091 , H01L2224/73265 , H01S5/02248 , H01S5/0268 , H01S5/0683 , H01S5/4062 , H01S5/4087 , H01L2924/00014
摘要： Embodiments of an optical detection apparatus are disclosed which may include one or more of a waveguide, a trench formed in the waveguide, a reflective surface, and a photodetector. The waveguide may be formed in a semiconductor substrate to propagate an optical signal received at a first end of the waveguide. The trench may also be formed in the waveguide having a first sidewall and a second sidewall, the first and second sidewalls forming first and second angles with the waveguide's propagation direction. The second sidewall may include a reflective surface formed thereon. The photodetector may be configured to receive an optical signal propagated in the waveguide, through the first sidewall and reflected from the reflective surface on the second sidewall.
摘要翻译： 公开了一种光学检测装置的实施例，其可以包括波导，在波导中形成的沟槽，反射表面和光电检测器中的一个或多个。 波导可以形成在半导体衬底中，以传播在波导的第一端处接收的光信号。 沟槽也可以形成在具有第一侧壁和第二侧壁的波导中，第一和第二侧壁与波导的传播方向形成第一和第二角度。 第二侧壁可以包括形成在其上的反射表面。 光电检测器可以被配置为接收在波导中传播的光信号，通过第一侧壁并从第二侧壁上的反射表面反射。
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18.发明授权Method and apparatus to generate and monitor optical signals and control power levels thereof in a planar lightwave circuit 有权在平面光波电路中产生和监测光信号并控制其功率水平的方法和装置公开(公告)号：US07780360B2
公开(公告)日：2010-08-24
申请号：US12176758
申请日：2008-07-21
申请人： Achintya K. Bhowmik , Nagesh K. Vodrahalli , Gennady Farber , Hai-Feng Liu , Hamid Eslampour , Ut Tran , William B. Wong , Ruolin Li , Jesper Arentoft Jayaswal
发明人： Achintya K. Bhowmik , Nagesh K. Vodrahalli , Gennady Farber , Hai-Feng Liu , Hamid Eslampour , Ut Tran , William B. Wong , Ruolin Li , Jesper Arentoft Jayaswal
CPC分类号： H01S5/141 , H01L2224/48091 , H01L2224/73265 , H01S5/02248 , H01S5/0268 , H01S5/0683 , H01S5/4062 , H01S5/4087 , H01L2924/00014
摘要： Embodiments of an optical detection apparatus are disclosed which may include one or more of a waveguide, a trench formed in the waveguide, a reflective surface, and a photodetector. The waveguide may be formed in a semiconductor substrate to propagate an optical signal received at a first end of the waveguide. The trench may also be formed in the waveguide having a first sidewall and a second sidewall, the first and second sidewalls forming first and second angles with the waveguide's propagation direction. The second sidewall may include a reflective surface formed thereon. The photodetector may be configured to receive an optical signal propagated in the waveguide, through the first sidewall and reflected from the reflective surface on the second sidewall.
摘要翻译： 公开了一种光学检测装置的实施例，其可以包括波导，在波导中形成的沟槽，反射表面和光电检测器中的一个或多个。 波导可以形成在半导体衬底中，以传播在波导的第一端处接收的光信号。 沟槽也可以形成在具有第一侧壁和第二侧壁的波导中，第一和第二侧壁与波导的传播方向形成第一和第二角度。 第二侧壁可以包括形成在其上的反射表面。 光电检测器可以被配置为接收在波导中传播的光信号，通过第一侧壁并从第二侧壁上的反射表面反射。
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公开(公告)号：US20090290210A1
公开(公告)日：2009-11-26
申请号：US12511693
申请日：2009-07-29
IPC分类号： G02F1/29
CPC分类号： G02F1/195 , G02F1/13 , G02F1/133526 , G02F1/133603
摘要： Some embodiments provide a device including a first material associated with a controllable refractive index, a second material associated with a first refractive index, and a third material disposed between the first material and the second material, the third material being substantially transparent to a plurality of visible light wavelengths and being associated with a second refractive index greater than the first refractive index. Devices according to some embodiments may be employed as a display in a laptop computer, a desktop computer, a personal digital assistant, a minicomputer, a projection television, a front projector, etc.
摘要翻译： 一些实施例提供了包括与可控折射率相关联的第一材料，与第一折射率相关联的第二材料和设置在第一材料和第二材料之间的第三材料的装置，第三材料对多个 可见光波长并且与大于第一折射率的第二折射率相关联。 根据一些实施例的设备可以用作膝上型计算机，台式计算机，个人数字助理，小型计算机，投影电视，前投影仪等中的显示器。
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公开(公告)号：US07586560B2
公开(公告)日：2009-09-08
申请号：US11028406
申请日：2005-01-03
IPC分类号： G02F1/1335
CPC分类号： G02F1/195 , G02F1/13 , G02F1/133526 , G02F1/133603
摘要： Some embodiments provide a device including a first material associated with a controllable refractive index, a second material associated with a first refractive index, and a third material disposed between the first material and the second material, the third material being substantially transparent to a plurality of visible light wavelengths and being associated with a second refractive index greater than the first refractive index. Devices according to some embodiments may be employed as a display in a laptop computer, a desktop computer, a personal digital assistant, a minicomputer, a projection television, a front projector, etc.
摘要翻译： 一些实施例提供了包括与可控折射率相关联的第一材料，与第一折射率相关联的第二材料和设置在第一材料和第二材料之间的第三材料的装置，第三材料对多个 可见光波长并且与大于第一折射率的第二折射率相关联。 根据一些实施例的设备可以用作膝上型计算机，台式计算机，个人数字助理，小型计算机，投影电视，前投影仪等中的显示器。
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