序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
121 VERTICALLY-ALLIGNED (VA) LIQUID CRYSTAL DISPLAY DEVICE US12121390 2008-05-15 US20080303997A1 2008-12-11 Arihiro Takeda; Katsufumi Ohmuro; Yoshio Koike; Shingo Kataoka; Takahiro Sasaki; Takashi Sasabayashi; Hideaki Tsuda; Hideo Chida; Makoto Ohashi; Kenji Okamoto; Hisashi Yamaguchi; Minoru Otani; Makoto Morishige; Noriaki Furukawa; Tsuyoshi Kamada; Yoshinori Tanaka; Atuyuki Hoshino; Shougo Hayashi; Hideaki Takizawa; Takeshi Kinjou; Makoto Tachibanaki; Keiji Imoto; Tadashi Hasegawa; Hidefumi Yoshida; Hiroyasu Inoue; Yoji Taniguchi; Tetsuya Fujikawa; Satoshi Murata; Manabu Sawasaki; Tomonori Tanose; Siro Hirota; Masahiro Ikeda; Kunihiro Tashiro; Kouji Tsukao; Yasutoshi Tasaka; Takatoshi Mayama; Seiji Tanuma; Yohei Nakanishi
A vertically alignment mode liquid crystal display device having an improved viewing angle characteristic is disclosed. The disclosed liquid crystal display device uses a liquid crystal having a negative anisotropic dielectric constant, and orientations of the liquid crystal are vertical to substrates when no voltage being applied, almost horizontal when a predetermined voltage is applied, and oblique when an intermediate voltage is applied. At least one of the substrates includes a structure as domain regulating means, and inclined surfaces of the structure operate as a trigger to regulate azimuths of the oblique orientations of the liquid crystal when the intermediate voltage is applied.
122 Transverse electric field active matrix liquid crystal display panel having particular optical compensation layer US11500395 2006-08-08 US07405785B2 2008-07-29 Shinichi Nishida; Teruaki Suzuki; Masayoshi Suzuki; Makoto Watanabe; Eriko Fujimaki; Yoshihiko Hirai
A color filter substrate C includes an orientation film 56 provided on one surface of another glass substrate 10 and an optical compensation layer 35 provided on the other surface of the glass substrate 10 and formed from a plastic film. The two substrates are disposed such that the orientation films thereof oppose each other, and polarization plates 34 and 5 are disposed on the outer sides of the two substrates, and a liquid crystal layer 4 having a positive refractive index anisotropy is provided between the orientation films 23. The optical compensation layer 35 has a negative one axial refractive index anisotropy and can cancel a retardation produced in the liquid crystal layer 4 thereby to suppress white floating of a black display portion.
123 Vertically-aligned (VA) liquid crystal display device US12070524 2008-02-19 US20080165314A1 2008-07-10 Arihiro Takeda; Katsufumi Ohmuro; Yoshio Koike; Shingo Kataoka; Takahiro Sasaki; Takashi Sasabayashi; Hideaki Tsuda; Hideo Chida; Makoto Ohashi; Kenji Okamoto; Hisashi Yamaguchi; Minoru Otani; Makoto Morishige; Noriaki Furukawa; Tsuyoshi Kamada; Yoshinori Tanaka; Atuyuki Hoshino; Shougo Hayashi; Hideaki Takizawa; Takeshi Kinjou; Makoto Tachibanaki; Keiji Imoto; Tadashi Hasegawa; Hidefumi Yoshida; Hiroyasu Inoue; Yoji Taniguchi; Tetsuya Fujikawa; Satoshi Murata; Manabu Sawasaki; Tomonori Tanose; Siro Hirota; Masahiro Ikeda; Kunihiro Tashiro; Kouji Tsukao; Yasutoshi Tasaka; Takatoshi Mayama; Seiji Tanuma; Yohei Nakanishi
A vertically alignment mode liquid crystal display device having an improved viewing angle characteristic is disclosed. The disclosed liquid crystal display device uses a liquid crystal having a negative anisotropic dielectric constant, and orientations of the liquid crystal are vertical to substrates when no voltage being applied, almost horizontal when a predetermined voltage is applied, and oblique when an intermediate voltage is applied. At least one of the substrates includes a structure as domain regulating means, and inclined surfaces of the structure operate as a trigger to regulate azimuths of the oblique orientations of the liquid crystal when the intermediate voltage is applied.
124 Liquid crystal projector, liquid crystal device and substrate for liquid crystal device US12010431 2008-01-24 US20080143893A1 2008-06-19 Kenichi Nakagawa
Red incident light is reflected on a mirror (19) and linearly polarized by a polarizer (26R). Linearly polarized incident light enters a transmissive liquid crystal device (11R), in which oblique incident light is changed into elliptically polarized light. A retardation compensator (27R) between the liquid crystal device (11R) and an analyzer (28R) has an inorganic form birefringence layer. The retardation compensator (27R) yields birefringence effect to change elliptical polarized light into linearly polarized light. Linearly polarized light from the retardation compensator (27R) can pass the analyzer (28R) without decreasing intensity, and enters a color recombining prism (24). The liquid crystal device (11R) may have the inorganic form birefringence layer. Retardation in green and blue light is also compensated in the same manner. Red, green and blue image light, mixed in the color recombining prism (24), is projected onto a screen 3 by a projection lens system (25).
125 LIQUID CRYSTAL DEVICE AND PROJECTOR HAVING THE SAME US11684857 2007-03-12 US20080117385A1 2008-05-22 Takashi ENDO
A liquid crystal device includes: a liquid crystal cell which includes liquid crystals operating in a vertical alignment mode, in which optic axes of the liquid crystals are inclined and oriented at a predetermined pre-tilt angle with respect to a normal line to an incident surface in an off-state; an optical compensator having an optic axis in a direction inclined with respect to the surface, that is, an orientation direction of the liquid crystals of the liquid crystal cell in an off-state.
126 Phase Difference Compensator, Light Modurating System, Liquid Crystal Display and Liquid Crystal Projector US11792069 2005-12-14 US20070258029A1 2007-11-08 Kenichi Nakagawa; Takamichi Fujii
On a transparent glass substrate (10), a first phase difference compensating layer (12) and a second phase difference compensating layer (14), which are formed of inorganic material, are provided. The first phase difference compensating layer (12) includes a stacked two kinds of deposition films sufficiently thinner than reference wavelength, one has high refraction index, and the other has low refraction index, to be a negative C-plate. The second phase difference compensating layer (14) includes at least two oblique deposition films, to be a positive O-plate. The first phase difference compensating layer (12) compensates a phase difference from liquid crystal molecules in a vertical orientation in a liquid crystal layer, and the second phase difference compensating layer (14) compensates a phase difference from liquid crystal molecules in a hybrid orientation in the liquid crystal layer.
127 Liquid crystal display having biaxial compensating film US11636734 2006-12-11 US20070132928A1 2007-06-14 I-An Yao; Hung-Lin Ko; Chueh-Ju Chen; Chiu-Lien Yang; Jin-Jei Wu
An exemplary liquid crystal display (200) includes a first polarizer (211), a first biaxial compensating film (213), a first discotic liquid crystal film (214), a first substrate (215), a liquid crystal layer (220), a second substrate (235), a second discotic liquid crystal film (234), and a second polarizer (231), arranged in that order from one side of the liquid crystal display to an opposite side of the liquid crystal display. In summary, the first biaxial compensating film can compensate light in two perpendicular directions, thus improving contrast ratios in the two directions of the liquid crystal display and broadening a view angle of the liquid crystal display. Therefore, the liquid crystal display has an improved display performance.
128 Vertically-alligned (VA) liquid crystal display device US10719714 2003-11-21 US07227606B2 2007-06-05 Arihiro Takeda; Katsufumi Ohmuro; Yoshio Koike; Shingo Kataoka; Takahiro Sasaki; Hideaki Tsuda; Hideo Chida; Makoto Ohashi; Kenji Okamoto; Hisashi Yamaguchi; Minoru Otani; Makoto Morishige; Noriaki Furukawa; Tsuyoshi Kamada; Yoshinori Tanaka; Atuyuki Hoshino; Shougo Hayashi; Hideaki Takizawa; Takeshi Kinjou; Makoto Tachibanaki; Keiji Imoto; Tadashi Hasegawa; Hidefumi Yoshida; Hiroyasu Inoue; Yoji Taniguchi; Tetsuya Fujikawa; Satoshi Murata; Manabu Sawasaki; Tomonori Tanose; Siro Hirota; Masahiro Ikeda; Kunihiro Tashiro; Kouji Tsukao; Yasutoshi Tasaka; Takatoshi Mayama; Seiji Tanuma; Yohei Nakanishi
A vertical alignment mode liquid crystal display device having an improved viewing angle characteristic is provided. The liquid crystal display device uses a liquid crystal having a negative anisotropic dielectric constant, and orientations of the liquid crystal are vertical to substrates when no voltage is applied, almost horizontal when a predetermined voltage is applied, and oblique when an intermediate voltage is applied. At least one of the substrates includes a structure as domain regulating means, and inclined surfaces of the structure operate as a trigger to regulate azimuths of the oblique orientations of the liquid crystal when the intermediate voltage is applied.
129 Optimally Clocked Trim Retarders US11468860 2006-08-31 US20070064163A1 2007-03-22 Kim Tan; Anthony Mache
A trim retarder for a liquid crystal display based projection system including a light source, a polarizer/analyzer, a liquid crystal display panel, and a projection lens, is clocked to an optimal azimuthal angle that provides a system contrast level substantially unaffected by the orientation of the slow axis of the liquid crystal display panel.
130 Vertically-aligned (VA) liquid crystal display device US09679455 2000-10-04 US07167224B1 2007-01-23 Arihiro Takeda; Katsufumi Ohmuro; Yoshio Koike; Shingo Kataoka; Takahiro Sasaki; Takashi Sasabayashi; Hideaki Tsuda; Hideo Chida; Makoto Ohashi; Kenji Okamoto; Hisashi Yamaguchi; Minoru Otani; Makoto Morishige; Noriaki Furukawa; Tsuyoshi Kamada; Yoshinori Tanaka; Atuyuki Hoshino; Shougo Hayashi; Hideaki Takizawa; Takeshi Kinjou; Makoto Tachibanaki; Keiji Imoto; Tadashi Hasegawa; Hidefumi Yoshida; Hiroyasu Inoue; Yoji Taniguchi; Tetsuya Fujikawa; Satoshi Murata; Manabu Sawasaki; Tomonori Tanose; Siro Hirota; Masahiro Ikeda; Kunihiro Tashiro; Kouji Tsukao; Yasutoshi Tasaka; Takatoshi Mayama; Seiji Tanuma; Yohei Nakanishi
A vertically alignment mode liquid crystal display device having an improved viewing angle characteristic is disclosed. The disclosed liquid crystal display device uses a liquid crystal having a negative anisotropic dielectric constant, and orientations of the liquid crystal are vertical to substrates when no voltage being applied, almost horizontal when a predetermined voltage is applied, and oblique when an intermediate voltage is applied. At least one of the substrates includes a structure as domain regulating means, and inclined surfaces of the structure operate as a trigger to regulate azimuths of the oblique orientations of the liquid crystal when the intermediate voltage is applied.
131 Liquid crystal display US11363055 2006-02-28 US20060203161A1 2006-09-14 Yoshiaki Hisakado; Ryouta Matsubara
A liquid crystal display comprising a pair of polarizing films, a liquid crystal cell placed between the polarizing films, and an optical compensatory sheet placed between the liquid crystal cell and at least one of the polarizing films, wherein the optical compensatory sheet comprises an optically anisotropic layer (1) and an optically anisotropic layer (2), and satisfies the following condition: 2.0≦(Δn×d)/Rth(2)≦5.0 wherein Δn is a birefringence of a liquid crystal molecule in the liquid crystal cell, d is a thickness (nm) of the liquid crystal cell, and Rth(2) is an Rth value of the optically anisotropic layer (2).
132 Liquid crystal displays including two o-plates and two c-plates, with helical arrangement of azimuthal orientations US11005933 2004-12-06 US07088411B2 2006-08-08 Richard C. Allen; Thomas Bachels; Jürg Fünfschilling; Martin Schadt; Hubert Seiberle
Compensation of a liquid crystal display can be achieved using a compensation structure, having, in the following order: a) a first o-plate; b) a first retarder; c) a liquid crystal cell; d) a second retarder; and e) a second o-plate. The first and second retarders can be c-plates or biaxial retarders.
133 Polarizing plate having optically anisotropic layer formed from liquid crystal molecules US10521177 2003-07-17 US20060165918A1 2006-07-27 Yoji Ito
A polarizing plate has a polarizing membrane and an optically anisotropic layer formed from liquid crystal molecules. The optically anisotropic layer is formed on the polarizing membrane, or formed on an orientation layer that is formed on the polarizing membrane.
134 Reflective liquid crystal display device and reflective liquid crystal display device incorporating touch panel arranged therefrom US10967216 2004-10-19 US07023510B2 2006-04-04 Masayuki Okamoto; Seiichi Mitsui; Takashi Satoh
A reflective color liquid crystal display device with a liquid crystal layer sandwiched between a first substrate having a light reflectibility and a second substrate having a light transmissibility. The liquid crystal layer being composed of twist-aligned nematic liquid crystal having a positive dielectric anisotropy. A circularly polarizing unit, including a single linear polarizer plate, selectively passes either right handed or left handed circularly polarized light out of natural light. The circularly polarizing unit is disposed so that a major surface of the circularly polarizing unit is on a liquid crystal layer side, the circularly polarized light exiting the circularly polarizing unit through the major surface when natural light enters the circularly polarizing unit. Various parameters of the liquid crystal layer are optimized for a liquid crystal layer having a twist angle in the range of 0° to 100°.
135 Reflective liquid crystal display device and reflective liquid crystal display device incorporating touch panel arranged therefrom US10967250 2004-10-19 US06958794B2 2005-10-25 Masayuki Okamoto; Seiichi Mitsui; Takashi Satoh
A reflective color liquid crystal display device with a liquid crystal layer sandwiched between a first substrate having a light reflectibility and a second substrate having a light transmissibility. The liquid crystal layer being composed of twist-aligned nematic liquid crystal having a positive dielectric anisotropy. A circularly polarizing unit, including a single linear polarizer plate, selectively passes either right handed or left handed circularly polarized light out of natural light. The circularly polarizing unit is disposed so that a major surface of the circularly polarizing unit is on a liquid crystal layer side, the circularly polarized light exiting the circularly polarizing unit through the major surface when natural light enters the circularly polarizing unit. Various parameters of the liquid crystal layer are optimized for a liquid crystal layer having a twist angle in the range of 0° to 100°.
136 Reflective liquid crystal display device and reflective liquid crystal display device incorporating touch panel arranged therefrom US10804109 2004-03-19 US06922220B2 2005-07-26 Masayuki Okamoto; Seiichi Mitsui; Takashi Satoh
A reflective color liquid crystal display device with a liquid crystal layer sandwiched between a first substrate having a light reflectibility and a second substrate having a light transmissibility. The liquid crystal layer being composed of twist-aligned nematic liquid crystal having a positive dielectric anisotropy. A circularly polarizing unit, including a single linear polarizer plate, selectively passes either right handed or left handed circularly polarized light out of natural light. The circularly polarizing unit is disposed so that a major surface of the circularly polarizing unit is on a liquid crystal layer side, the circularly polarized light exiting the circularly polarizing unit through the major surface when natural light enters the circularly polarizing unit. Various parameters of the liquid crystal layer are optimized for a liquid crystal layer having a twist angle in the range of 0° to 100°.
137 Optical compensator and liquid crystal display I US11059659 2005-02-17 US20050134774A1 2005-06-23 David Coates; Owain Parri; Mark Verrall; Peter Masurier
The invention relates to an optical compensator for liquid crystal displays comprising at least one O plate retarder, and at least one twisted A plate retarder with a twist angle φ of more than 90°, and further relates to a liquid crystal display comprising such a compensator.
138 Optical compensatory sheet, liquid-crystal display and elliptical polarizing plate employing same US10400520 2003-03-28 US06890608B2 2005-05-10 Shinichi Morishima; Ken Kawata; Terukazu Yanagi
A novel optical compensatory sheet is disclosed the sheet comprises a transparent support and an optically anisotropic layer formed of discotic liquid-crystal molecules thereon. The anisotropic layer comprises at least one air interface control agent, thereby having an air interface polarity of at least 1.5-fold relative to that of a layer which does not comprise said air interface control agent. An optical compensatory sheet comprising a transparent support and an optically anisotropic layer formed of discotic liquid-crystal molecules thereon, wherein said anisotropic layer comprises at least one compound denoted by formula (I) is also disclosed
139 Elliptically polarizing plate and liquid crystal display US10085973 2002-02-28 US06839103B2 2005-01-04 Jack Kelly; Tatiana Sergan; Marina Lavrentovich; Yuuichi Nishikouji; Tadayuki Kameyama
An elliptically polarizing plate, comprising a polarizer, a first optical anisotropic layer having positive refractive index anisotropy and an optical axis of the anisotropy that is tilted, and a second optical anisotropic layer having negative refractive index anisotropy and an optical axis that is tilted, have accurate retardation compensation of a liquid crystal cell, and the liquid crystal display maintains a display contrast having a sufficient visibility when the viewing angle is changed and which does not generate colorization.
140 Reflection liquid crystal display and reflection liquid crystal display provided with built-in touch panel and comprising the same US09403487 1999-10-22 US06791640B1 2004-09-14 Masayuki Okamoto; Seiichi Mitsui; Takashi Satoh
The present invention offers reflective color liquid crystal display devices with a high contrast ratio and eye-friendly multi-color display capability, and liquid crystal display devices incorporating a touch panel arranged therefrom, of which the display is not adversely affected by the installation of a pressure sensitive input device. In a reflective liquid crystal display device arranged from a light reflexible substrate (5) and a substrate (4); a liquid crystal layer (1) in which nematic liquid crystal having a positive dielectric anisotropy is sandwiched between the substrates (4) and (5); a first optical retardation compensator plate (8); a second optical retardation compensator plate (9); and a polarizer plate (10), {circle around (1)} the retardation of the optical retardation compensator plates (8 and 9) in the substrate normal direction, {circle around (2)} the angle formed by the slow axes of the optical retardation compensator plates (8 and 9) and either the transmission axis or the absorption axis of the polarizer plate (10), {circle around (3)} the twist angle of the liquid crystal layer (1), {circle around (4)} the product of the birefringence difference of the liquid crystal in the liquid crystal layer (1) and the thickness of the liquid crystal layer, and {circle around (5)} the angle formed by the alignment direction of the liquid crystal molecules in a close proximity of the substrate (4) and either the transmission axis or the absorption axis of the polarizer plate are optimized.
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