| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 221 | LC panel compensators | US12016875 | 2008-01-18 | US20080129939A1 | 2008-06-05 | Michael G. Robinson; Jianmin Chen; Gary D. Sharp |
| Described are various compensators for compensating for in-plate and out-of-plane retardances of LC panels in their dark states. | ||||||
| 222 | LC panel compensators | US10908671 | 2005-05-22 | US07345723B2 | 2008-03-18 | Michael G. Robinson; Jianmin Chen; Gary D. Sharp |
| Described are various compensators for compensating for in-plate and out-of-plane retardances of LC panels in their dark states. | ||||||
| 223 | Liquid crystal display apparatus | US10956254 | 2004-09-30 | US07292299B2 | 2007-11-06 | Ikuo Hiyama; Shinichi Komura; Tsunenori Yamamoto; Yuka Utsumi; Mutsumi Maehara; Daisuke Kajita |
| In an in-plane switching (ISP) mode controlling transmission and shielding of light by application of lateral electric field to liquid crystal molecules aligned in the direction in parallel to a substrate, increase in luminance or color shift at a black-representation area or upon black-representation condition at an inclined viewing angle is reduced. First and second polarizing plates sandwiching a liquid crystal layer each have a supporting member (plate) on at least either surface thereof. The supporting member on the inside surface of the first polarizing plate on the side of an illumination unit has a retardation in the thickness direction R1·h1 and the supporting member on the inside surface of the second polarizing plate has a retardation in the thickness direction R2·h2. In the O-mode, R1·h1>R2·h2 and in the E-mode, R1·h1 | ||||||
| 224 | Liquid crystal displays | US11294866 | 2005-12-05 | US20070126961A1 | 2007-06-07 | Chia-Yi Tsai; Li-Sen Chuang; Yih-Jun Wong |
| Systems for displaying images are provided. A representative system comprises a wide viewing angle liquid crystal display with multi-film compensation. A liquid crystal display comprising a first substrate, a second substrate, and a liquid crystal layer sandwiched between the first substrate and the second substrate. A first compensation film is interposed between the first polarizer and the first substrate. A second compensation film interposed between the second polarizer and the second substrate. The first compensation film and the second compensation film comprise different birefringence polarities. | ||||||
| 225 | In-plane switching liquid crystal display comprising compensation film for angular field of view using +A-plate and +C-plate | US10969206 | 2004-10-21 | US07227602B2 | 2007-06-05 | Byoung Kun Jeon; Serey Belyaev; Jeong Su Yu; Nikolay Malimonenko |
| Disclosed is an in-plane switching liquid crystal display. The in-plane switching liquid crystal display improves the contrast characteristic at a front and at a predetermined inclination angle thereof by using a +A-plate and a +C-plate while minimizing a color shift according to viewing angles in the black state. | ||||||
| 226 | LIQUID CRYSTAL DISPLAY DEVICE | US11537860 | 2006-10-02 | US20070076152A1 | 2007-04-05 | Hideki Ito; Yuuzo Hisatake; Akio Murayama; Chigusa Tago |
| A circular polarizer structure, which is included in a liquid crystal display device, includes a uniaxial third retardation plate for optical compensation of the circular polarizer structure between a first polarizer plate and a first retardation plate, the uniaxial third retardation plate having a refractive index anisotropy of nx≃nz>ny. A circular analyzer structure includes a uniaxial fourth retardation plate for optical compensation of the circular analyzer structure between a second polarizer plate and a second retardation plate, the uniaxial fourth retardation plate having a refractive index anisotropy of nx≃nz>ny. A variable retarder structure includes a fifth retardation plate for optical compensation of the variable retarder structure between the first retardation plate and the second retardation plate, the fifth retardation plate having a refractive index anisotropy of nx≃ny>nz. | ||||||
| 227 | Optical element obtained by homeotropically orienting liquid crystal molecule, member for liquid crystal display device using the same, and liquid crystal display device | US11408936 | 2006-04-24 | US20060250555A1 | 2006-11-09 | Atsushi Suemasu |
| An object of the present invention is to provide an optical element which can suppress a production cost, has good heat resistance, uniformly maintains the fixed orientation of a liquid crystal polymer in a wide temperature range, shows a low haze with reliability, and can maintain desired birefringence property with reliability. The present invention relates to an optical element formed by forming, on an upper surface of a base material having light transmittance, at least a birefringence layer having a structure obtained by fixing liquid crystal monomers each having a polymerizable group at a terminal thereof in a state where the monomers are homeotropically oriented, and by removing an additive layer formed on the upper surface of the birefringence layer. | ||||||
| 228 | Liquid crystal display device | US11071599 | 2005-03-02 | US20060061718A1 | 2006-03-23 | Masakazu Shibasaki; Hidefumi Yoshida; Kazuya Ueda |
| First and second polarization plates are disposed on both sides of a liquid crystal panel in which thicknesses of a liquid crystal layer are set up depending on colors of color filters. Then, a first retardation film is disposed between the liquid crystal panel and the first polarization film, and a second retardation film is disposed between the liquid crystal panel and the second polarization film. Assuming that a maximum value of a refractive index in an in-plane direction out of principal indices of refraction is Nx, that a refractive index in an orthogonal direction to the direction of the refractive index which has the value of Nx is Ny, and that a thickness is d, the first and second retardation films are set to satisfy a difference in values of (Nx−Ny)×d equal to or less than 10 nm. | ||||||
| 229 | LC Panel Compensators | US10908671 | 2005-05-22 | US20050264734A1 | 2005-12-01 | Michael Robinson; Jianmin Chen; Gary Sharp |
| Described are various compensators for compensating for in-plate and out-of-plane retardances of LC panels in their dark states. | ||||||
| 230 | Polarizer and liquid-crystal display apparatus | US11038092 | 2005-01-21 | US20050206817A1 | 2005-09-22 | Daisuke Kajita; Ikuo Hiyama; Mutsumi Maehara; Yuka Utsumi |
| A liquid crystal display apparatus includes a first polarizer located on one side of a first substrate, a second polarizer located on the opposite side of a second substrate, a liquid crystal layer formed of liquid crystal molecules and between the first and the second substrates so that the liquid crystal molecules may be aligned in parallel to the first or the second substrate and to which an electric field is applied in parallel to the first substrate, and a lighting device. The first or the second polarizer includes a polarization layer and supporting materials located on both sides of the polarization layer, reducing light leakage and a colour shift in a black display state when viewed from the oblique direction. | ||||||
| 231 | In-plane switching liquid crystal display comprising compensation film for angular field of view using +A-plate and +C-plate | US10969206 | 2004-10-21 | US20050140900A1 | 2005-06-30 | Byoung Jeon; Serey Belyaev; Jeong Yu; Nikolay Malimonenko |
| Disclosed is an in-plane switching liquid crystal display. The in-plane switching liquid crystal display improves the contrast characteristic at a front and at a predetermined inclination angle thereof by using a +A-plate and a +C-plate while minimizing a color shift according to viewing angles in the black state. | ||||||
| 232 | Normally white LCD including first and second biaxial retarders | US09048322 | 1998-03-26 | US06229588B1 | 2001-05-08 | Adiel Abileah; Gang Xu |
| A normally white liquid crystal display is provided with a positively birefringent uniaxial retardation film having a retardation value of from about 100-200 nm. The retardation film is provided on one side of the liquid crystal layer, the liquid crystal being sandwiched between a pair of orientation or buffing films which orient the liquid crystal molecules adjacent thereto in predetermined directions. The optical axis of the retardation film is rotated from about 2°-20°, most preferably from about 6°-10° relative to the buffing direction on the opposite side of the liquid crystal layer. This rotation of the retardation film optical axis allows for the high contrast ratio viewing zone of the display to be shifted vertically into either the positive or negative vertical viewing region depending upon the direction of rotation of the retardation film optical axis. Alternatively, biaxial retardation films having similar retardation values may be utilizied according to the teachings of this invention. | ||||||
| 233 | Color liquid crystal display | US09324836 | 1999-06-03 | US06169589A | 2001-01-02 | Yasushi Kaneko |
| In a reflection-type color liquid crystal display which can display a bright, high-saturation negative-type color display with a background in black or deep color, a pair of polarizing films 8 and 9 are disposed on both sides of a liquid crystal 20 which has a nematic liquid crystal 7 between a pair of substrates 1 and 4 having electrodes respectively, and a twisted retardation film 10 is disposed between the polarizing films 9 and the liquid crystal device 20. The intersecting angle between absorption axes of the pair of polarizing films 8 and 9 is set to be in the range of 60° to 120°, the &Dgr;nd value of the liquid crystal device 20 is set to be in the range of 1500 nm to 1800 nm, and the &Dgr;nd value of the twisted retardation film 10 is arranged to be in nearly the same range as the &Dgr;nd value of the liquid crystal device 20. | ||||||
| 234 | Liquid crystal display device operating in a vertically aligned mode | US804798 | 1997-02-24 | US6141075A | 2000-10-31 | Katsufumi Ohmuro; Yoshio Koike; Takahiro Sasaki; Hideaki Tsuda; Hideo Chida |
| A vertically-aligned liquid crystal display device includes a liquid crystal layer sandwiched between a pair of glass substrates, wherein a retardation of the liquid crystal layer is optimized in a range between 80 nm and 400 nm. Further, the use of retardation films adjacent to the liquid crystal layer and its optimization are also disclosed. | ||||||
| 235 | Normally black liquid crystal display with twisted compensator and . .DELTAnd of 1500-1800 nm | US96492 | 1998-06-12 | US6141070A | 2000-10-31 | Yasushi Kaneko |
| In a reflection-type color liquid crystal display which can display a bright, high-saturation negative-type color display with a background in black or deep color, a pair of polarizing films 8 and 9 are disposed on both sides of a liquid crystal 20 which has a nematic liquid crystal 7 between a pair of substrates 1 and 4 having electrodes respectively, and a twisted retardation film 10 is disposed between the polarizing films 9 and the liquid crystal device 20. The intersecting angle between absorption axes of the pair of polarizing films 8 and 9 is set to be in the range of 60.degree. to 120.degree., the .DELTA.nd value of the liquid crystal device 20 is set to be in the range of 1500 nm to 1800 nm, and the .DELTA.nd value of the twisted retardation film 10 is arranged to be in nearly the same range as the .DELTA.nd value of the liquid crystal device 20. | ||||||
| 236 | Film compensated normally white super-twist nematic liquid crystal display that reduces chromaticity shifts over large temperature and viewing angle range | US893891 | 1997-07-11 | US5982465A | 1999-11-09 | Ragini Saxena; Bruce K. Winker; Donald B. Taber |
| A normally white super-twist nematic liquid crystal display is disclosed. Between a polarizer layer and an analyzer layer, the display includes a super-twist nematic liquid crystal cell having first and second substrates and a liquid crystal layer disposed between the first and second substrates. The display further includes at least one positively birefringent A-plate compensator layer disposed between the polarizer layer and the super-twist nematic liquid crystal cell and at least one positively birefringent A-plate compensator layer disposed between the analyzer layer and the super-twist nematic liquid crystal cell to reduce chromaticity shifts of the display at wide viewing angles and over temperature variations. | ||||||
| 237 | Normally white twisted nematic LCD with positive uniaxial and nebative biaxial retarders having n.sub.x >n.sub.y >n.sub.z | US81829 | 1998-05-20 | US5859681A | 1999-01-12 | John A. VanderPloeg; Gang Xu; Adiel Abileah |
| A normally white twisted nematic liquid crystal display is provided for outputting improved viewing characteristics which are defined by high contrast ratios and reduced inversion. The display includes both positive and negative retardation films, the negative films being biaxial and defined by n.sub.x >n.sub.y >n.sub.z in certain embodiments where the "z" direction is substantially perpendicular to the film plane and the "x" and "y" directions are substantially parallel to the film plane. By providing the positive and biaxial negative retarders with specific retardation values and/or ratios, improved viewing characteristics are provided. According to other embodiments, a positive and a negative (uniaxial or biaxial) retarder may be provided on only one side of the liquid crystal layer. | ||||||
| 238 | Liquid crystal display having a retarder with 100-200nm retardation and having high contrast viewing zone centered in positive or negative vertical region | US255971 | 1994-06-08 | US5576861A | 1996-11-19 | Adiel Abileah; Gang Xu |
| A normally white liquid crystal display is provided with a positively birefringent uniaxial retardation film having a retardation value of from about 100-200 nm. The retardation film is provided on one side of the liquid crystal layer, the liquid crystal being sandwiched between a pair of orientation or buffing films which orient the liquid crystal molecules adjacent thereto in predetermined directions. The optical axis of the retardation film is rotated from about 2.degree.-20.degree., most preferably from about 6.degree.-10.degree.relative to the buffing direction on the opposite side of the liquid crystal layer. This rotation of the retardation film optical axis allows for the high contrast ratio viewing zone of the display to be shifted vertically into either the positive or negative vertical viewing region depending upon the direction of rotation of the retardation film optical axis. Alternatively, biaxial retardation films having similar retardation values may be utilized according to the teachings of this invention. | ||||||
| 239 | Liquid crystal display having positive and negative uniaxially oriented polymer films | US795324 | 1991-11-20 | US5249071A | 1993-09-28 | Toshiyuki Yoshimizu; Hiroshi Ohnishi; Yumi Yoshimura; Keiko Kishimoto |
| In a supertwist type liquid crystal display, a pair of upper and lower polarizers and polymer films are disposed in such an arrangement that the upper polarizer, first uniaxial oriented polymer film, second uniaxial oriented polymer film, supertwist type liquid crystal cell, third uniaxial oriented polymer film, first biaxial oriented polymer film and the lower polarizer are sequentially piled on in this order, and each of said first, second and third uniaxial oriented polymer films has a positive optical anisotropy and said first biaxial oriented polymer film has a negative optical anisotropy. | ||||||
| 240 | Birefringent film with n.sub.x >n.sub.z >n.sub.y, process for producing the same, retardation film, elliptically polarizing plate, and liquid crystal display | US780938 | 1991-10-23 | US5245456A | 1993-09-14 | Hiroyuki Yoshimi; Tatsuki Nagatsuka; Yasuo Fujimura; Tatsuya Osuka |
| A birefringent film in which molecules oriented in a direction parallel to the film plane and molecules oriented in the direction of the thickness of the film are present in a mixed state. Also, a process for producing the birefringent film, which comprises laminating a resin film on one or both sides thereof with a shrinkable film, thereby preparing a laminate, and then heat stretching the laminate, thereby performing stretching treatment of the resin film while imparting to the resin film the ability to shrink in the direction crossing the stretching direction. A retardation film is formed by using at least one birefringent film and has refractive indexes, n.sub.x and n.sub.y, in two directions parallel to the plate plane and crossing each other at right angles and a refractive index, n.sub.z, in the direction of the thickness of the plate, said refractive indexes n.sub.x, n.sub.y, and n.sub.z satisfying the following equation:0<(n.sub.x -n.sub.z)/(n.sub.x -n.sub.y)<1provided that n.sub.x >n.sub.y. Also, an elliptically polarizing plate comprises a laminate of the retardation film with a polarizing plate. Additionally, a liquid crystal display comprises a liquid crystal cell and a polarizing plate disposed at least on one side of said liquid crystal cell through the retardation film. | ||||||
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