Sharp Kabushiki Kaisha Corporation

Fujifilm Corporation

Fujitsu Corporation

Au Optronics Corporation

Fujitsu Display Technologies Corporation

Other

Unified Innovative Technology, LLC

Katsufumi Ohmuro

Kunihiro Tashiro

Yoshio Koike

Norio Sugiura

Takahiro Sasaki

Tetsuya Fujikawa

Hideo Chida

Tomonori Tanose

Hideaki Tsuda

Yohei Nakanishi

Arihiro Takeda

Shingo Kataoka

Hidefumi Yoshida

Jin Hirosawa

Kazutaka Hanaoka

Kengo Kanii

Tsuyoshi Kamada

Isao Tsushima

Yasutoshi Tasaka

Seiji Tanuma

Shota Makimoto

Takashi Takagi

Satoshi Murata

Yukito Saitoh

Yoshinori Tanaka

Takashi Sasabayashi

Manabu Sawasaki

Hiroyasu Inoue

Kenji Okamoto

Takatoshi Mayama

Yoji Taniguchi

Shougo Hayashi

Hideaki Takizawa

Tadashi Hasegawa

Noriaki Furukawa

Keiji Imoto

Hisashi Yamaguchi

Makoto Ohashi

Kouji Tsukao

Masahiro Ikeda

Minoru Otani

Makoto Tachibanaki

Atuyuki Hoshino

Naoto Kondo

Makoto Morishige

Takeshi Kinjou

Siro Hirota

Kimiaki Nakamura

Akiko Watano

Tatsuya Iwasaki

Mitsuyoshi Ichihashi

Masaaki Suzuki

Naoyoshi Yamada

Yasuhiro Ohno

Kazuya Ueda

Masakazu Shibasaki

Wataru Hoshino

Ryuji Saneto

Yusuke Ohashi

Hiroyuki Ishikawa

Jun Takeda

Shinichi Morishima

Hideyuki Nishikawa

Junichi Hirakata

Seiji Doi

Tomoshige Oda

Kotaro Yasuda

Minoru Wada

Syun Tsuyuki

Yuki Matsuda

Hiroshi Sato

Yuki Nakamura

Toshihiro Suzuki

Tetsuya Kobayashi

Tetsuya Hamada

Kiyokazu Hashimoto

Yujiro Yanai

Keiji Hayashi

Akio Tamura

Naoya Shibata

Hirofumi Toyama

Takeshi Gotoh

Mari Sugawara

Takashi Yonemoto

Kunihiro Atsumi

Tatsuya Oba

Fumitake Mitobe

Ryuta Takegami

Koji Iijima

Nobuyuki Akutagawa

Shun Nakamura

Takuya Yoshimi

Takumi Ando

Zemin Shi

Shigeru Masuda

Minoru Ohtani

Provided is an optical laminate, an image display device, and a glass composite which are capable of sufficiently shielding light emitted in a direction oblique to a normal direction of a film without occurrence of moire even in a case of being used in a combination with a high-definition image display device. The optical laminate includes, in order, at least a first light absorption anisotropic layer, a refractive index anisotropic layer formed of a one or more layers that contain a liquid crystal compound having a twisted structure, and a second light absorption anisotropic layer, in which the first light absorption anisotropic layer and the second light absorption anisotropic layer contain an anisotropic absorbing material and each have an absorption axis that is aligned at an angle of 60° to 90° with respect to a film surface.

Optical laminate comprising a twisted angle of a refractive index anisotropic layer having a twisted structure, image display device, and glass composite

The present invention provides a liquid crystal display device having excellent display quality and suppressed occurrence of halo. The liquid crystal display device of the present invention is a liquid crystal display device including, in the following order, a first polarizer, a liquid crystal cell, a second polarizer, and a direct type backlight that uses a point light source, in which a light control member is further provided between the second polarizer and the direct type backlight, and the liquid crystal display device satisfies relationships of the following Expression (1) 70%≤(I20/I0)×100≤90%, Expression (2) 10%≤(I40/I0)×100≤35%, and Expression (3) 1%≤(I60/I0)×100≤20%.

Liquid crystal display device

A liquid crystal display device in which light leak and a tint change when being seen from an oblique direction at the time of black display are suppressed. The liquid crystal display device includes: a liquid crystal cell and a pair of polarizing plates that are disposed such that the liquid crystal cell is interposed between the pair of polarizing plates, in which a tilt angle of the liquid crystal compound is 1.0&#xb0; or less, respective color filters that are disposed on respective pixel regions of the liquid crystal cell are provided between the pair of polarizing plates, Rth of the respective color filters satisfy predetermined requirements, the polarizing plate that is disposed on the visible side among the pair of polarizing plates includes an optical compensation layer and a polarizer in this order from the liquid crystal cell side, and the optical compensation layer satisfies a predetermined requirement.

The present invention provides a liquid crystal display device which suppresses a color change of light leak depending on a direction in the visual recognition from an oblique direction during black display, and has high display quality. The liquid crystal display device includes, in order, at least: a first polarizer; an optically anisotropic layer a liquid crystal cell; and a second polarizer, the liquid crystal cell has pixels with a screen resolution of 250 ppi or more, the pixels each have at least blue, green, and red subpixels, the subpixel has a chevron structure in which an angle formed between at least one side and an absorption axis of the first polarizer or an absorption axis of the second polarizer is larger than 0&#xb0; and not larger than 5&#xb0;, and a depolarization degree of the liquid crystal cell in a visible light region satisfies a predetermined requirement.

Provided is a horizontal electric field mode liquid crystal display device in which light leak and tint change at the time of black display are reduced in case of being seen from an oblique direction. The liquid crystal display device is an IPS mode liquid crystal display device including at least a first polarizer, a first optical compensation layer, a liquid crystal cell, and a second polarizer in this order, in which the first optical compensation layer satisfies a predetermined relational expression, a total thickness-direction retardation Rth total(550) present between the liquid crystal layer and the second polarizer in the liquid crystal cell satisfies a predetermined relational expression, and a slow axis of the first optical compensation layer is parallel to an absorption axis of a polarizer layer.

The present invention relates to an optical film which ensures adhesiveness between a polymer film and a liquid crystal layer without deteriorating the alignment of a liquid crystal compound; a polarizing plate using the same; an image display device; a method for producing an optical film; and a method for producing a polarizing plate. The optical film includes a polymer film including a cycloolefin-based polymer, and a liquid crystal layer that is provided adjacent to the polymer film, in which the liquid crystal layer is formed by using a liquid crystal composition containing a liquid crystal compound and a compound having a specific structure, where the liquid crystal composition contains the compound having a specific structure at a content of 0.5% to 7.0% by mass with respect to a mass of the liquid crystal compound, and a predetermined eccentricity value is 20% to 80%.

Optical film, polarizing plate, image display device, method for producing optical film, and method for producing polarizing plate

A liquid crystal display device is provided in which a tint change in case of being seen from an oblique direction at the time of black display is suppressed. The liquid crystal display device includes: a liquid crystal cell and a pair of polarizing plates that are disposed such that the liquid crystal cell is interposed between the pair of polarizing plates, in which a tilt angle of the liquid crystal compound is 1.0&#xb0; or less, respective color filters that are disposed on respective pixel regions of the liquid crystal cell are provided between the pair of polarizing plates, Rth of the respective color filters satisfy predetermined requirements, the polarizing plate that is disposed on the visible side among the pair of polarizing plates includes an optical compensation layer and a polarizer in this order from the liquid crystal cell side, and the optical compensation layer satisfies a predetermined requirement.

An optical sheet member includes a polarizing plate including a polarizer (A); an optical conversion member (D); and a brightness enhancement film including a reflection polarizer (B), wherein the brightness enhancement film has a reflection center wavelength range of 300 nm to 430, and the optical conversion member (D) converts a part or all of UV light which is transmitted through polarizer (B) and is incident on the optical conversion member (D), and has an emission center wavelength range of 300 nm to 430 nm and which has an emission center wavelength range of 430 nm to 480 nm, green light which has an emission center wavelength range of 500 nm to 600 nm, and red light which has an emission center wavelength range of 600 nm to 700 nm.

Optical sheet member and image display device using same

The present invention includes an optical element of which an oblique tint change can be improved in a case of the optical element is incorporated to a liquid crystal display device, a method of manufacturing an optical element, and a liquid crystal display device. The optical element includes: a reflection polarizer which is formed of a discotic liquid crystal compound and in which a cholesteric liquid crystalline phase is immobilized, in which, in the reflection polarizer, a front retardation value Re satisfies 0 nm&#x2264;Re&#x3c;10 nm in a range of &#xb1;50 nm outside a reflection center wavelength, and an absolute value |Ret (50&#xb0;)| of a retardation value Ret in a polar angle 50&#xb0; direction satisfies |Ret (50&#xb0;)|&#x2264;50 nm.

Optical element, method of manufacturing optical element, and liquid crystal display device

An optical sheet member includes a polarizing plate including a polarizer (A); an optical conversion member (D); and a brightness enhancement film including a reflection polarizer (B), in which the brightness enhancement film has a reflection center wavelength range of 400 nm to 500 nm, and the optical conversion member (D) converts a part of blue light which is transmitted through polarizer (B) and is incident on the optical conversion member (D), and has an emission center wavelength range of 400 nm to 500 nm and which has an emission center wavelength range of 500 nm to 600 nm and red light which has an emission center wavelength range of 600 nm to 700 nm, and transmits a part of the blue light. When the optical sheet member is incorporated in an image display device, front brightness, contrast, and a color reproducing region are enhanced, and color unevenness is reduced.

An aspect of the present invention relates to a liquid crystal panel including a visible side polarizing plate, a liquid crystal cell, and a backlight side polarizing plate, in which the backlight side polarizing plate is a reflective polarizing plate of which a degree of polarization Pwith respect to light at a wavelength of 550 nm is greater than or equal to 99.90%, and the reflective polarizing plate and the liquid crystal cell are integrally laminated, a liquid crystal display device, and a reflective polarizing plate and a manufacturing method thereof.

Liquid crystal panel, liquid crystal display device, and reflective polarizing plate and manufacturing method thereof

A liquid-crystal display device having a backlight unit emitting unpolarized blue light, a light conversion member, a polarization separating member, a backlight-side polarizer, a liquid crystal cell, and a display-side polarizing plate wherein the polarization separating member separates the unpolarized blue light into blue transmitted light and blue reflected light which are linearly polarized in vibration directions that are orthogonal to each other, and transmits some of light in a wavelength range each of 500 nm to 600 nm and 600 nm to 650 nm, the light conversion member includes a fluorescent material that, due to blue light entering the light conversion member, emits green light which is linearly-polarized light and red light which is linearly-polarized light; and a transmission axis of the backlight-side polarizer is parallel to vibration directions of the green and red light, is improved in terms of front surface luminance and color reproduction region.

Liquid-crystal display device

There is provided a composition containing a discotic liquid crystal compound, a chiral agent, and a surfactant which can form a light reflecting layer formed by fixing a cholesteric liquid crystalline phase, which exhibits excellent durability under a hot and humid environment and excellent heat resistance, and has few alignment defects; a light reflecting film; a luminance-improving film; a backlight unit; and a liquid crystal display device.

Composition, light reflecting film, luminance-improving film, backlight unit, and liquid crystal display device

Provided are a brightness enhancement film including a &#x3bb;/4 plate, and a reflection polarizer, in which the reflection polarizer includes at least two light reflection layers formed by immobilizing a cholesteric liquid crystalline phase, one light reflection layer of the reflection layers is a layer formed of a polymerizable liquid crystal composition containing a rod-like liquid crystal compound, and the other light reflection layer is a layer formed of a polymerizable liquid crystal composition containing a disk-like liquid crystal compound, and an optical sheet member including the brightness enhancement film, and a liquid crystal display device including the optical sheet member. The brightness enhancement film of the present invention has high brightness and is able to suppress an oblique change in the shade at the time of being incorporated in a liquid crystal display device.

Brightness enhancement film, optical sheet member, and liquid crystal display device

An optical sheet member includes a polarizing plate including a polarizer, a brightness enhancement film including a reflection polarizer, and a &#x3bb;/4 plate, in which the reflection polarizer includes a first light reflecting layer which has a reflection center wavelength range of 430 nm to 480 nm, and is formed by fixing a cholesteric liquid crystalline phase emitting circular polarization light, a second light reflecting layer which has a reflection center wavelength range of 500 nm to 600 nm, and a third light reflecting layer which has a reflection center wavelength range of 600 nm to 650 nm, and both formed by fixing a cholesteric liquid crystalline phase emitting circular polarization light, and the brightness enhancement film includes the &#x3bb;/4 plate satisfying 550 nm/4&#x2212;25 nm&#x3c;Re(550)&#x3c;550 nm/4+25 nm between the polarizer and the reflection polarizer.

Optical sheet member and image display device employing same

Growing community of inventors

Kawasaki, Japan

Katsufumi Ohmuro