| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Liquid crystal display and method of optical compensation thereof | US14004419 | 2013-07-11 | US20150248032A1 | 2015-09-03 | Chihtsung Kang; Bo Hai |
| The present invention discloses a liquid crystal display and a method of optical compensation thereof. Specifically, the present invention adjusts compensation values of a uniaxial positive birefringence A-Plate and a uniaxial negative birefringence C-Plate, especially a value range of retardation in a thickness direction Rth of the uniaxial negative birefringence C-Plate is controlled. By adjusting the compensation values of the above-mentioned two types of compensation films, the dark-state light leakage phenomenon is suppressed. The present invention is capable of suppressing the dark-state light leakage phenomenon at a large viewing angle effectively and increasing the contrast and clarity at a large viewing angle. | ||||||
| 182 | Liquid crystal display | US13437562 | 2012-04-02 | US09116392B2 | 2015-08-25 | Min Oh Choi; Hee Wook Do; Duckjong Suh |
| A liquid crystal display including a twisted nematic liquid crystal panel and first and second substrates with the twisted nematic liquid crystal panel arranged therebetween. A first biaxial retardation compensation film faces the first substrate and a second biaxial retardation compensation film faces the first biaxial retardation compensation film with the twisted nematic liquid crystal panel arranged therebetween. | ||||||
| 183 | DISPLAY PANEL FOR COMPENSATING A VIEWING ANGLE AND DISPLAY APPARATUS HAVING THE SAME | US14245080 | 2014-04-04 | US20150049284A1 | 2015-02-19 | Il-yong JUNG; Tsukasa YAMADA; Seong-eun CHUNG; Seung-myen LEE |
| A liquid crystal display (LCD) panel is provided. The LCD panel includes: a liquid crystal layer configured to operate in a first preset phase retardation mode based on an operating mode of liquid crystals; a pre-tilt layer configured to guide a rotation direction of the liquid crystals; a polarizing layer formed on a surface of the upper substrate and having a wire grid structure to polarize and filter radiated light passing through the liquid crystal layer; and a retardation compensation film disposed between the polarizing layer and the upper substrate and configured to compensate phase retardation of the radiated light, wherein the retardation compensation film includes: a first compensation layer configured to retard the radiated light in a second phase retardation mode having a negative phase retardation; and a second compensation layer configured to retard the radiated light in a third phase retardation mode. | ||||||
| 184 | IPS MODE LIQUID CRYSTAL DISPLAY DEVICE | US14366146 | 2012-09-19 | US20140362330A1 | 2014-12-11 | Minori Tamagawa |
| With regard to an IPS liquid crystal display device in which a phase difference film is used as a polarizing plate protection film at the liquid crystal cell side of a polarizing plate, which is arranged at the viewing side of IPS liquid crystal cell, to provide a means for improving the re-workability of the phase difference film at production of the display device.The IPS mode liquid crystal display device according to the present invention has an IPS mode liquid crystal cell and a first polarizing plate and a second polarizing plate, which sandwich the IPS mode liquid crystal cell. Further, the first polarizing plate is positioned at the viewing side of the liquid crystal cell and is provided from the viewing side with a first polarizing plate protection film, a polarizer, and a second polarizing plate protection film; the second polarizing plate is positioned at the reverse side from the viewing side of the liquid crystal cell and is provided from the viewing side with a third polarizing plate protection film, a polarizer, and a fourth polarizing plate protection film; the second polarizing plate protection film has a film thickness of 30 to 60 μm and has a structure resulting from laminating a first optically anisotropic layer, which contains a polymer having a positive intrinsic birefringence, and a second optically anisotropic layer, which contains a polymer having a negative intrinsic birefringence; and the film thickness of the first polarizing plate protection film, the third polarizing plate protection film, and the fourth polarizing plate protection film are each 10 to 30 μm. | ||||||
| 185 | LIQUID CRYSTAL DISPLAY DEVICE | US13926237 | 2013-06-25 | US20130342793A1 | 2013-12-26 | Jun TAKEDA; Tatsuya IWASAKI; Yuki MATSUDA; Taku WAKITA; Hiroyuki KAIHOKO |
| A liquid crystal display device includes: a first polarizing film; a first retardation region; a liquid crystal cell which includes a liquid crystal layer sandwiched between a pair of substrates, in which liquid crystal molecules in the liquid crystal layer are oriented parallel to surfaces of the pair of substrates at a time of black display; and a second polarizing film, a slow axis of the first retardation region is arranged orthogonally or parallel to a long axis of the liquid crystal molecule at a surface of the liquid crystal layer at a side of the substrate of the liquid crystal cell adjacent to the first retardation region in a state of no application of voltage, the liquid crystal cell operates in a lateral electric field mode, and the first retardation region includes a first retardation layer and a second retardation layer as defined herein. | ||||||
| 186 | PHASE DIFFERENCE FILM LAYERED BODY AND METHOD FOR PRODUCING PHASE DIFFERENCE FILM LAYERED BODY | US13976551 | 2011-12-20 | US20130271835A1 | 2013-10-17 | Hironari Sudeji; Taku Hatano |
| By provision of an A layer consisting of a resin having a positive intrinsic birefringence value; a B layer consisting of a resin containing a styrene polymer and having a negative intrinsic birefringence value; and a C layer consisting of a resin containing a polymer having an alicyclic structure, in this order; a phase difference film wherein, when the C layer is removed, retardation Re at an incident angle of 0° and retardation R40 at an incident angle of 40° satisfy a relationship of 0.92≦R40/Re≦1.08 is realized. | ||||||
| 187 | LIQUID CRYSTAL DEVICE, ELECTRONIC APPARATUS, AND PROJECTION TYPE DISPLAY APPARATUS | US13652776 | 2012-10-16 | US20130100376A1 | 2013-04-25 | Ayae Sawado |
| When tilt directions of liquid crystal molecules have an azimuth of 45° or 135° in a counterclockwise direction with respect to the direction in which a wire grid of a wire grid polarization beam splitter extends, a phase difference compensation element in which an optical axis includes refractive index anisotropy of negative uniaxial properties along the thickness direction is inclined in the same direction as the tilt directions, and the phase difference compensation element is inclined in the direction reverse to the tilt directions when tilt directions have an azimuth of 225° or 315°. | ||||||
| 188 | LIQUID CRYSTAL DISPLAY | US13437562 | 2012-04-02 | US20130021562A1 | 2013-01-24 | Min Oh CHOI; Hee Wook DO; Duckjong SUH |
| A liquid crystal display including a twisted nematic liquid crystal panel and first and second substrates with the twisted nematic liquid crystal panel arranged therebetween. A first biaxial retardation compensation film faces the first substrate and a second biaxial retardation compensation film faces the first biaxial retardation compensation film with the twisted nematic liquid crystal panel arranged therebetween. | ||||||
| 189 | Liquid crystal display panel with micro-lens array and liquid crystal display device | US12522448 | 2007-10-26 | US08300188B2 | 2012-10-30 | Naru Usukura |
| A liquid crystal display panel includes a liquid crystal panel having a plurality of pixels; a microlens array provided on a light-incident side of the liquid crystal panel; a first polarizing plate and a first optical compensation element provided on a light-outgoing side of the liquid crystal panel; and a second polarizing plate and a second optical compensation element provided on a light-incident side of the microlens array. The retardation of the first optical compensation element along the thickness direction is greater than the retardation of the second optical compensation element along the thickness direction. | ||||||
| 190 | Liquid crystal panel and liquid crystal display | US12745609 | 2008-11-18 | US08274627B2 | 2012-09-25 | Masatoshi Tomonaga; Hiroyuki Takemoto |
| The invention provides a liquid crystal panel and a liquid crystal display device, which has suppressed light leakage at an angle of 45 degrees to an absorption axis of a polarizing plate, a low black-state brightness in an oblique direction and an improved contrast. The liquid crystal panel comprises a liquid crystal cell including a liquid crystal layer containing liquid crystal molecules that is oriented in homogeneous alignment when no electric field is applied thereto, a first polarizer placed on one side of the liquid crystal cell, a second polarizer placed on another side of the liquid crystal cell, a first anisotropic optical element placed between the liquid crystal cell and the first polarizer and satisfying nx1>ny1>nz1, and a second anisotropic optical element placed between the first anisotropic optical element and the liquid crystal cell and satisfying nz2>nx2>ny2, wherein the slow axis of the first anisotropic optical element is parallel to the slow axis of the second anisotropic optical element. | ||||||
| 191 | LIQUID-CRYSTAL DISPLAY DEVICE | US13499999 | 2010-05-20 | US20120200811A1 | 2012-08-09 | Akira Sakai; Kazuyoshi Sakuragi; Masahiro Hasegawa |
| The present invention provides a liquid-crystal display device that can achieve high contrast ratios in a wide range of viewing angles and reduce coloration during black display. The liquid-crystal display device according to the present invention includes a polarizer, a first quarter-wave plate adapted to satisfy nx>ny≧nz, a vertically aligned liquid crystal cell, a second quarter-wave plate provided with substantially the same Nz factor as the first quarter-wave plate and adapted to satisfy nx>ny≧nz, a birefringent layer adapted to satisfy nx |
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| 192 | Polarizer and liquid-crystal display apparatus having reduced polarization state in oblique viewing angles | US13011085 | 2011-01-21 | US08134665B2 | 2012-03-13 | 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 color shift in a black display state when viewed from the oblique direction. | ||||||
| 193 | RETARDATION FILM, POLARIZING FILM, LIQUID CRYSTAL DISPLAY, AND METHOD OF DESIGNING RETARDATION FILM | US13064814 | 2011-04-18 | US20110199560A1 | 2011-08-18 | Akira Sakai |
| To provide a retardation film in which the retardation condition is adjusted to achieve a liquid crystal display without coloration over a wide viewing angle range and having a high contrast ratio, and a method of designing the same, as well as a polarizing film and a liquid crystal display using the same. A liquid crystal display comprising a liquid crystal cell and polarizing films in a Cross-Nicol relationship with each other on both sides of the liquid crystal cell; wherein at least one polarizing film includes a retardation film having reverse wavelength dispersion property; and the liquid crystal display further includes a retardation film having a wavelength dispersion property substantially the same as a liquid crystal layer configuring the liquid crystal cell. | ||||||
| 194 | Vertically aligned liquid crystal display having a wide viewing compensation film using +A-film and +C-film | US11666557 | 2006-03-10 | US07956965B2 | 2011-06-07 | Byoung Kun Jeon; Sergey Belyaev; Nikolay Malimonenko; Jun Won Chang; Soo Jin Jang |
| This invention provides a vertically aligned liquid crystal display, including a first polarizing plate and a second polarizing plate having absorption axes perpendicular to each other and a vertically aligned panel provided therebetween and including vertically aligned liquid crystals having negative dielectric anisotropy, in which a +A-film and a +C-film are provided between the first polarizing plate and the vertically aligned panel, the +C-film is positioned between the first polarizing plate and the +A-film, and the optic axis of the +A-film is parallel to or perpendicular to the absorption axis of the first polarizing plate. According to this invention, the contrast of the vertically aligned liquid crystal display can be improved at surface-facing angle and tilt angle thereof and the color shift depending on the viewing angle in a dark state can be minimized, thus greatly increasing the viewing angle range of the vertically aligned liquid crystal display. | ||||||
| 195 | Polarizer and liquid-crystal display apparatus having reduced polarization state in oblique viewing angles | US11038092 | 2005-01-21 | US07920238B2 | 2011-04-05 | 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. | ||||||
| 196 | In-plane switching liquid crystal display including viewing angle compensation film using +A-plate | US12752927 | 2010-04-01 | US07916253B2 | 2011-03-29 | Byoung Kun Jeon; Sergey Belyaev; Jeong Su Yu; Nikolay Malimonenko; Jun Won Jang |
| Disclosed is an in-plane switching liquid crystal display. The in-plane switching liquid crystal display uses at least one A-plate and adjusts the optical axis direction and the retardation value of the A-plate, thereby improving the contrast characteristic at a front and at a predetermined inclination angle of the in-plane switching liquid crystal display while minimizing a color shift according to viewing angles in the black state. | ||||||
| 197 | DISPLAY APPARATUS AND METHOD OF MANUFACTURING THE SAME | US12730742 | 2010-03-24 | US20110069267A1 | 2011-03-24 | Hyun-cheol MOON; Jooseok Yeom |
| Disclosed are a display apparatus and a method of manufacturing the same. The liquid crystal display includes a first substrate and a pixel electrode formed on the first substrate and having a plurality of branches. A plurality of alignment sections are interposed among the branches. An auxiliary liquid crystal layer having discotic liquid crystals is formed on the pixel electrode and the alignment sections. A main liquid crystal layer having a vertical alignment mode is formed on the auxiliary liquid crystal layer. A common electrode is formed on the main liquid crystal layer to apply an electric field to the main liquid crystal layer together with the pixel electrode. A second substrate is formed on the common electrode. | ||||||
| 198 | Liquid crystal display operating in a vertically aligned mode | US12302893 | 2007-06-06 | US07889297B2 | 2011-02-15 | Serguei Petrovich Palto |
| The present invention relates generally to the field of liquid crystal display devices and more particularly to a liquid crystal display device operating in vertically aligned mode (VA-mode) in which liquid crystal molecules having a negative dielectric anisotropy are aligned generally perpendicularly to a panel surface of the liquid crystal display. A liquid crystal display according to the invention comprises a liquid crystal cell (6) of a vertical alignment mode, at least one polarizer (2, 10) arranged on each side of the liquid crystal cell, and at least one compensating structure (3, 7) disposed between the liquid crystal cell and at least one of the polarizers. The polarizers have transmission axes (11, 18) which are perpendicular to each other. | ||||||
| 199 | Optical compensation layer-attached polarizing plate, liquid crystal panel, liquid crystal display, image display, and method for producing optical compensation layer-attached polarizing plate | US11667943 | 2005-11-16 | US07852561B2 | 2010-12-14 | Tsuyoshi Chiba; Ikuo Kawamoto; Satoru Kawahara; Masahiro Hata; Nobuyuki Kozonoi; Shunsuke Shuto |
| An optical compensation layer-attached polarizing plate including a polarizing plate, an optical compensation layer and another optical compensation layer that are laminated in this order, wherein the optical compensation layer has the relation nx1>ny1=nz1, including a resin with a photoelastic coefficient absolute value of at most 2.0×10−11 m2/N, and has an in-plane retardation (nx1−ny1)d1 in the range of 200 nm to 300 nm, the optical compensation layer has the relation nx2>ny2>nz2, including a resin with a photoelastic coefficient absolute value of at most 2.0×10−11 m2/N, and has an in-plane retardation (nx2−ny2)d2 in the range of 90 nm to 160 nm, a slow axis of the optical compensation layer makes an angle of 10° to 30° with an absorption axis of the polarizing plate, and a slow axis of the optical compensation layer makes an angle of 75° to 95° with the absorption axis of the polarizing plate. | ||||||
| 200 | LIQUID CRYSTAL PANEL AND LIQUID CRYSTAL DISPLAY | US12745609 | 2008-11-18 | US20100309414A1 | 2010-12-09 | Masatoshi Tomonaga; Hiroyuki Takemoto |
| The invention provides a liquid crystal panel and a liquid crystal display device, which has suppressed light leakage at an angle of 45 degrees to an absorption axis of a polarizing plate, a low black-state brightness in an oblique direction and an improved contrast. The liquid crystal panel comprises a liquid crystal cell including a liquid crystal layer containing liquid crystal molecules that is oriented in homogeneous alignment when no electric field is applied thereto, a first polarizer placed on one side of the liquid crystal cell, a second polarizer placed on another side of the liquid crystal cell, a first anisotropic optical element placed between the liquid crystal cell and the first polarizer and satisfying nx1>ny1>nz1, and a second anisotropic optical element placed between the first anisotropic optical element and the liquid crystal cell and satisfying nz2>nx2>ny2, wherein the slow axis of the first anisotropic optical element is parallel to the slow axis of the second anisotropic optical element. | ||||||
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