公开(公告)号：US07444018B2

公开(公告)日：2008-10-28

申请号：US10930170

申请日：2004-08-31

申请人： Wei Qi ,  Dong Zhang

发明人： Wei Qi ,  Dong Zhang

IPC分类号： G06K9/00 ,  H04N5/14

CPC分类号： G06K9/00711 ,  G06T7/20 ,  G11B27/28 ,  H04N5/147

摘要： A system identifies an abrupt transition in content between two frames, and determines whether the abrupt transition was caused by a shot boundary between the two frames or by a flashlight event. Identification of the abrupt transition in content includes calculating a difference in light intensity histograms between the current frame and a preceding frame, and comparing the histogram difference to a dynamically determined threshold. Further, an average light intensity based method is used to determine whether the abrupt transition was caused by a shot boundary or by a flashlight event.

摘要翻译： 系统识别两帧之间内容的突然转换，并确定突发转换是由两帧之间的拍摄边界还是由手电筒事件引起。 识别内容中的突然转变包括计算当前帧和前一帧之间的光强度直方图的差异，并将直方图差异与动态确定的阈值进行比较。 此外，使用基于平均光强度的方法来确定突然转变是由射击边界还是由手电筒事件引起的。

公开(公告)号：US20080241565A1

公开(公告)日：2008-10-02

申请号：US11731366

申请日：2007-03-29

申请人： Ted Calvin Germroth ,  Xiaoliang Joe Zheng ,  Thauming Kuo ,  Dong Zhang ,  Brian Michael King ,  Frank W. Harris ,  Jiaokai Alexander Jing

发明人： Ted Calvin Germroth ,  Xiaoliang Joe Zheng ,  Thauming Kuo ,  Dong Zhang ,  Brian Michael King ,  Frank W. Harris ,  Jiaokai Alexander Jing

IPC分类号： B32B27/32 ,  B32B9/04

CPC分类号： G02F1/133634 ,  C08F8/00 ,  C08F8/02 ,  C08F8/22 ,  C08F8/30 ,  C08F2800/10 ,  C08J5/18 ,  C08J2325/18 ,  G02B5/3016 ,  G02B5/3083 ,  G02F1/134363 ,  Y10T428/31504 ,  Y10T428/31855 ,  C08F112/08 ,  C08F212/10 ,  C08F112/32 ,  C08F12/08 ,  C08F212/32 ,  C08F112/12

摘要： Optical compensation films (positive C-plate) with anisotropic subunits (OASUs) that are aromatic rings substituted with birefringence enhancing substituents (BES) and have high positive birefringence throughout the wavelength range 400 nm

摘要翻译： 提供了具有双折射增强取代基（BES）取代的芳环的各向异性亚单位（OASU）和在400nm <λ<800nm的波长范围内具有高正双折射的光学补偿膜（正C板）。 可以通过溶液流延来加工光学补偿膜，以产生具有高双折射率的聚合物膜，而不需要拉伸，光聚合或其它方法。 这种光学补偿膜适合用作LCD中的正C板，特别是IPS-LCD。

公开(公告)号：US20070014938A1

公开(公告)日：2007-01-18

申请号：US11488929

申请日：2006-07-18

申请人： Frank Harris ,  Limin Sun ,  Dong Zhang ,  Stephen Cheng

发明人： Frank Harris ,  Limin Sun ,  Dong Zhang ,  Stephen Cheng

IPC分类号： C09K19/00

CPC分类号： C08G73/1039 ,  C08G73/1042 ,  C08G73/1067 ,  C08J5/18 ,  C08J2379/08 ,  G02B5/3083 ,  G02F1/133634 ,  Y10T428/1027 ,  Y10T428/1036 ,  Y10T428/1041 ,  Y10T428/31721

摘要： A class of soluble poly(aryletherimides) (PAEIs) having flexible backbones, useful in the manufacture of polymeric optical films are disclosed. The poly(aryletherimides) are dissolved in organic solvents, such as ketones and ketone solvent mixtures and coated on variety of substrates such as triacetyl cellulose (TAC), to form clear thin-layer films which display negative birefringence. The thin films can serve as compensation layers in liquid crystal displays (LCDs), and can be combined with other types of optical films, such as polarizers, brightness enhancement films, or other compensation films, to from multi-layered films that are especially useful in the manufacture of LCDs.

摘要翻译： 公开了一类可用于制造聚合物光学薄膜的可溶性聚（芳基酰亚胺）（PAEI）（PAEI）），其具有柔性主链。 将聚（芳基酰亚胺）溶于有机溶剂如酮和酮溶剂混合物中并涂覆在各种基材如三乙酰纤维素（TAC）上，以形成显示出负双折射的透明薄膜。 薄膜可以用作液晶显示器（LCD）中的补偿层，并且可以与其他类型的光学膜（例如偏振器，亮度增强膜或其他补偿膜）组合到特别有用的多层膜 在LCD的制造中。

公开(公告)号：US07113640B2

公开(公告)日：2006-09-26

申请号：US10997451

申请日：2004-11-24

申请人： Wei Qi ,  Dong Zhang

发明人： Wei Qi ,  Dong Zhang

IPC分类号： G06K9/00 ,  H04N5/14

CPC分类号： G06K9/00711 ,  G06T7/20 ,  G11B27/28 ,  H04N5/147

摘要： A system identifies an abrupt transition in content between two frames, and determines whether the abrupt transition was caused by a shot boundary between the two frames or by a flashlight event. Identification of the abrupt transition in content includes calculating a difference in light intensity histograms between the current frame and a preceding frame, and comparing the histogram difference to a dynamically determined threshold. Further, an average light intensity based method is used to determine whether the abrupt transition was caused by a shot boundary or by a flashlight event.

公开(公告)号：US20050100213A1

公开(公告)日：2005-05-12

申请号：US10997451

申请日：2004-11-24

申请人： Wei Qi ,  Dong Zhang

发明人： Wei Qi ,  Dong Zhang

IPC分类号： G06K9/00 ,  G06T7/20 ,  G11B27/28 ,  H04N5/14 ,  G11B27/00

CPC分类号： G06K9/00711 ,  G06T7/20 ,  G11B27/28 ,  H04N5/147

摘要： A system identifies an abrupt transition in content between two frames, and determines whether the abrupt transition was caused by a shot boundary between the two frames or by a flashlight event. Identification of the abrupt transition in content includes calculating a difference in light intensity histograms between the current frame and a preceding frame, and comparing the histogram difference to a dynamically determined threshold. Further, an average light intensity based method is used to determine whether the abrupt transition was caused by a shot boundary or by a flashlight event.

公开(公告)号：US06870978B2

公开(公告)日：2005-03-22

申请号：US10269147

申请日：2002-10-11

申请人： Ken Purchase ,  Martin McKenzie ,  Lili Huang ,  Stephen Z. D. Cheng ,  Frank W. Harris ,  Jason J. Ge ,  Dong Zhang

发明人： Ken Purchase ,  Martin McKenzie ,  Lili Huang ,  Stephen Z. D. Cheng ,  Frank W. Harris ,  Jason J. Ge ,  Dong Zhang

IPC分类号： C09K19/38 ,  G02B1/04 ,  G02B5/30 ,  G02B6/12 ,  G02B6/126 ,  G02B6/138 ,  G02B6/34

CPC分类号： G02B6/12011 ,  C09K19/3809 ,  C09K2219/03 ,  G02B1/046 ,  G02B5/3016 ,  G02B6/12023 ,  G02B6/126 ,  G02B6/138 ,  G02B2006/12069 ,  G02B2006/12116

摘要： Waveplates formed of mesogen-containing polymers and planar lightwave circuits containing such waveplates. Polymers have sidechains containing mesogens such as biphenyl-containing groups. Polymers may have a glass transition temperature between 100 C and 300 C, and polymers may be stretched in excess of 150% to increase birefringence of polymer and provide thin films. Waveplates formed of stretched polymer films may have high biaxial birefringence.

摘要翻译： 含有介晶的聚合物和包含这种波片的平面光波回路形成的波片。 聚合物具有含有介晶的侧链，例如含联苯基团。 聚合物可以具有在100℃和300℃之间的玻璃化转变温度，并且聚合物可以被拉伸超过150％以增加聚合物的双折射率并提供薄膜。 由拉伸聚合物膜形成的波片可能具有高双轴双折射。