Sharp Kabushiki Kaisha Corporation

Merck Patent Gmbh

Jsr Corporation

Kyoto University

Dic Corporation

Jnc Corporation

Kyushu University

Shapr Kabushiki Kaisha

Koichi Miyachi

Iichiro Inoue

Makoto Shiomi

Isamu Miyake

Akihito Jinda

Kazunari Tomizawa

Hiroyuki Hakoi

Seiji Shibahara

Shinichi Terashita

Hidekazu Miyata

Shoichi Ishihara

Takako Koide

Tomoo Furukawa

Masanobu Mizusaki

Toshihiro Matsumoto

Kiyoshi Ogishima

Masumi Kubo

Shuichi Kozaki

Motohiro Yamahara

Hiroshi Tsuchiya

Tsuyoshi Okazaki

Mutsumi Nakajima

Fumikazu Shimoshikiryo

Toshihide Tsubata

Akihiro Yamamoto

Nobukazu Nagae

Yoshito Hashimoto

Hidefumi Yoshida

Yoshihiro Izumi

Mitsuhiro Murata

Hiromi Katoh

Mitsuhiro Shigeta

Hiroyuki Ogawa

Kiyoshi Minoura

Hiroshi Hamada

Yasuhiro Sugita

Eiji Hayashi

Kohhei Tanaka

Shinji Yamagishi

Yosuke Iwata

Michinori Nishikawa

Yuko Teraoka

Akihiro Shoraku

Hiroaki Asagi

Yoshihiko Kuroda

Jean Mugiraneza

Isa Nishiyama

Akira Hirai

Kenshi Tada

Takashi Shibatani

Yasuhiro Nasu

Fumitaka Kondo

Hirotsugu Kikuchi

Toshihisa Uchida

Jun Yamamoto

Shigeo Shimizu

Youichiro Ooki

Teruyoshi Hara

Yasushi Okumura

Nobuhiko Nakai

Waki Sakatsuji

Hiroki Higuchi

Hiroya Nishikawa

Nobukazu Nagai

Matsumi Nakajima

Hidehiko Ohkura

Hiroshi Gohda

Morio Nakata

Ryuzo Ono

Syunsuke Kawamata

Jyun Isayama

Tsuyoshi Kamata

Masumi Yamashita

Yoichi Takanishi

Shogo Kato

Rijeesh Kizhakidathazhath

Takahito Kanzaki

Yudai Kawashima

Gimpei Machida

Shouichi Nakata

Takahiro Matsumoto

Satoshi Fukuma

Ryou Ueda

In this liquid crystal display device, a plurality of pixelsare arranged in a display region. The liquid crystal display device comprises a first substratein which a pixel electrodehaving slitsis provided, a second substrate disposed face to the first substrate, a liquid crystal layercontaining liquid crystal molecules that have negative dielectric anisotropy, a first alignment film, and a second alignment film. The slitsare positioned in each alignment region of a plurality of alignment regions in the pixels, and have oblique slit parts extending in an oblique direction with respect to sides of the pixels. The angle γ formed by the direction in which the oblique slit parts extends and a liquid crystal projection direction is 15 degrees or more and 85 degrees or less.

Liquid crystal display device

This liquid crystal display device has a plurality of pixels. Each pixel in the plurality of pixels includes first to fourth alignment regions; these first to fourth alignment regions are arranged in the longitudinal direction of the pixels, and the difference between any two alignment orientations in the first to fourth alignment regions is approximately equal to an integer multiple of 90 degrees. Of the pre-tilt angles defined by a first alignment film and a second alignment film in each of the first to fourth alignment regions, one pre-tilt angle is less than 90 degrees and the other pre-tilt angle is substantially 90 degrees. The optical alignment film is formed using a polymer having an optical alignment group in the side chain, and the content of the optical alignment group in the side chain of the polymer is less than 1.1 mmol/g.

Liquid crystal display device and manufacturing method therefor

The present invention provides a liquid crystal display device that, with photo-alignment films, can maintain a favorable voltage holding ratio for a long period of time and prevent generation of image sticking and stains on the display screen. The liquid crystal display device includes: an active-matrix liquid crystal panel; and a backlight, the liquid crystal panel including a liquid crystal layer, paired substrates holding the liquid crystal layer in between, and alignment films disposed on the liquid crystal layer side surfaces of the respective substrates, the alignment films each being a photo-alignment film formed from a material exhibiting photo-alignment performance, the liquid crystal layer containing a liquid crystal material and a radical scavenger.

A complex () includes a liquid crystal component () and a support () of the liquid crystal component (), in which a lubricating interface derivation region () is formed between the liquid crystal component () and the support (). An optical element includes a pair of substrates () having electrodes () on at least one substrate (), and a liquid crystal component () with which a space between the pair of substrates () is filled, in which a lubricating interface derivation region () is formed between the pair of substrates () and the liquid crystal component (). It is preferable that the lubricating interface deriving agent () is present in the lubricating interface derivation region.

Complex and optical element

The present invention provides a liquid crystal display device that maintains a sufficient voltage holding ratio over a long period of time even when a liquid crystal panel having a narrower frame is used and that undergoes no burn-in or no stains on a display screen. The liquid crystal display device of the present invention includes an active-matrix liquid crystal panel and a backlight, wherein the liquid crystal panel includes a liquid crystal layer, a pair of substrates between which the liquid crystal layer is sandwiched, alignment layers disposed on surfaces of the pair of substrates facing the liquid crystal layer, and a seal part that bonds the pair of substrates to each other and that is disposed around the liquid crystal layer, and the liquid crystal panel is formed by a liquid crystal one-drop fill process, wherein the liquid crystal layer includes a liquid crystal material and at least one of a radical scavenger and an antioxidant, and the seal part has a width of 0.6 mm or less at least in part.

A touch panel includes: a first substrate; a second substrate disposed on a viewer side of the first substrate; a liquid crystal layer provided between the first substrate and the second substrate; a plurality of pixel electrodes and a common electrode for applying a voltage to the liquid crystal layer; and a plurality of detection electrodes and a plurality of driving electrodes for a touch sensor. The first substrate includes: a first transparent substrate; and the plurality of pixel electrodes, which are formed on the liquid crystal layer side of the first transparent substrate. The second substrate includes: a second transparent substrate; and the plurality of driving electrodes and the plurality of detection electrodes formed on the liquid crystal layer side of the second transparent substrate. The touch panel does not include a conductive layer on the viewer side of the second transparent substrate.

Touch panel

The present invention provides a liquid crystal display panel and a liquid crystal display device having excellent display quality, with reduced string-like defects that occur in display pixels. The liquid crystal display panel of the present invention includes multiple spacers between a pair of substrates, wherein the spacers are arranged such that an inter-spacer distance between adjacent spacers in a longitudinal direction is different from an inter-spacer distance between adjacent spacers in a transverse direction, and an angle formed between a line connecting the spacers with a shorter inter-spacer distance and an alignment direction of liquid crystal molecules at a voltage lower than a threshold voltage in the liquid crystal layer is 20&#xb0; or smaller.

Liquid crystal display panel and liquid crystal display device

The present invention provides a liquid crystal display device with reduced power consumption as well as reduced flicker. The liquid crystal display device is one in a transverse electric field mode, including: paired substrates; a photo-alignment film disposed on at least one of the substrates; a horizontal alignment liquid crystal layer disposed between the substrates; and pixels arranged in a matrix form, the liquid crystal layer containing liquid crystal molecules with a bicyclohexyl skeleton and liquid crystal molecules with a difluorobenzene skeleton, the liquid crystal layer having negative anisotropy of dielectric constant, one of the substrates including TFTs disposed in the respective pixels, the TFTs each including a semiconductor layer that contains an oxide semiconductor, the liquid crystal display device having a frame rate of lower than 50 Hz.

The present invention provides a method for manufacturing a liquid crystal display device including a photo-alignment film and capable of sufficiently improving the display quality. The method for manufacturing a liquid crystal display device of the present invention is a method for manufacturing a liquid crystal display device including a photo-alignment film. The method for manufacturing a liquid crystal display device successively includes a step (1) of forming on a substrate a film from a photo-alignment-film material that contains a solvent, a polymer including a photo-functional group that is capable of causing at least one chemical reaction selected from the group consisting of photodimerization, photoisomerization, and photo-Fries rearrangement, and a polymer including a polyamic acid backbone and free from the photo-functional group; a step (2) of pre-heating the film to evaporate the solvent; a step (3) of irradiating the pre-heated film with polarized light; and a step (4) of main-heating the polarized-light-irradiated film. The liquid crystal display device is of an in-plane switching mode or a fringe field switching mode in each of which a pre-tilt angle is substantially 0&#xb0;.

Method for manufacturing liquid crystal display device

The present invention provides a method for manufacturing a liquid crystal display device capable of suppressing display unevenness around a seal in the case of performing PS treatment on a horizontal alignment film formed from a photoactive material. The method for manufacturing a liquid crystal display device of the present invention includes the steps of: forming a horizontal alignment film containing a photoactive material on at least one substrate of a pair of substrates; dropping a liquid crystal composition containing a liquid crystal material and a monomer on one of the pair of substrates, the monomer being contained in an amount of 1.0% by weight or less in the whole liquid crystal composition; curing a sealing material applied to one substrate of the pair of substrates along an outer edge thereof by irradiating the sealing material with light whose wavelength is 40 nm or more longer than an absorption wavelength edge of the monomer; and forming a polymer layer that controls the alignment of liquid crystal molecules adjacent thereto on the horizontal alignment film by irradiating the liquid crystal composition sealed between the pair of substrates with light to polymerize the monomer.

The present invention provides a method for manufacturing a liquid crystal display device, which hardly causes display unevenness in joining parts in which mutually neighboring exposure regions are overlapped upon carrying out a photo-alignment treatment for forming a horizontal alignment film. The method for manufacturing a liquid crystal display device of the present invention includes a step of forming a horizontal alignment film by carrying out a photo-alignment treatment of irradiating a photo-alignment film material applied to at least one substrate of a pair of substrates with polarized light, wherein the photo-alignment treatment is carried out by exposure to a plurality of regions of one substrate surface; two neighboring regions among the plurality of regions to be exposed include an overlapped part; an irradiation amount of the polarized light to the overlapped part is gradually lowered in one of the two neighboring regions toward the other of the two neighboring regions; and the overlapped part of the two neighboring regions has a width of 20 mm or wider.

The present invention provides a liquid crystal display device that includes a horizontal alignment film, stabilizes liquid crystal alignment by the PSA technique, can suppress the increase in power consumption, reduction in contrast, and image sticking in display, and has long-term reliability. The present invention is a liquid crystal display device including a pair of substrates, a liquid crystal layer interposed between the pair of substrates, a horizontal alignment film formed on at least one of the pair of substrates, and a polymer layer which is formed on the horizontal alignment film and controls the alignment of adjacent liquid crystal molecules, wherein the polymer layer is formed by the polymerization of at least one or more kinds of monomers added into the liquid crystal layer, and at least one of the one or more kinds of monomers is polymerized by itself functioning as a polymerization initiator by being irradiated with light.

Growing community of inventors

Soraku-gun, Japan

Koichi Miyachi