Sharp Kabushiki Kaisha Corporation

Fujitsu Corporation

Fujitsu Display Technologies Corporation

Merck Patent Gmbh

Au Optronics Corporation

Kazutaka Hanaoka

Yohei Nakanishi

Hidefumi Yoshida

Yuichi Inoue

Takahiro Sasaki

Seiji Tanuma

Kimiaki Nakamura

Kunihiro Tashiro

Tetsuya Fujikawa

Yoshio Koike

Takatoshi Mayama

Arihiro Takeda

Norio Sugiura

Takashi Takagi

Kengo Kanii

Katsufumi Ohmuro

Shingo Kataoka

Yasutoshi Tasaka

Hideaki Tsuda

Tomonori Tanose

Shota Makimoto

Jin Hirosawa

Isao Tsushima

Masakazu Shibasaki

Hiroyasu Inoue

Takashi Sasabayashi

Hideo Chida

Naoto Kondo

Tsutomu Seino

Iori Aoyama

Yuichi Kita

Yuji Nakahata

Makoto Ohashi

Kouji Tsukao

Seiji Doi

Tetsuya Kobayashi

Kazuya Ueda

Hisashi Yamaguchi

Takeshi Gotoh

Yasuhiro Ohno

Kenji Okamoto

Hiroyuki Moriwaki

Yoji Taniguchi

Toshiaki Suzuki

Koichi Katagawa

Katsunori Tanaka

Kenichi Nagaoka

Tsuyoshi Kamada

Koji Murata

Shinji Shimada

Yoshiki Nakatani

Kentaro Usui

Hongyong Zhang

Kiyoshi Minoura

Toshihiro Suzuki

Matthias Bremer

Hisashi Watanabe

Melanie Klasen-Memmer

Kazuaki Tarumi

Yozo Narutaki

Simon Greenfield

Keiji Hayashi

Yasuo Yamagishi

Hidekazu Miyata

Shin Eguchi

Katsuhiko Kishida

Fumiaki Yamada

Richard Harding

Makoto Morishige

David B Chung

Syun Tsuyuki

Noriko Uchida

Mariko Honda

Atsuko Kanashima

Yoshiro Katayama

Toshio Ninomiya

The display device includes a liquid crystal panel including a polymer dispersed liquid crystal (PDLC) layer and a light source, the PDLC layer containing a polymer network and liquid crystal components dispersed in the polymer network, the light source being apart from the liquid crystal panel with an air layer, and configured to emit light toward the liquid crystal panel from an oblique direction, the end portion and the central portion of the PDLC layer each having, in the scattering state, an angle dependence which changes a transmittance of light to be emitted from a front surface based on an angle at which light is incident on a back surface of the PDLC layer, with the angle dependence of the end portion being different from the angle dependence of the central portion, the light source irradiating the end portion and the central portion with light at different angles.

Display device

Provided is a liquid crystal display device including: a liquid crystal panel; and a control circuit, the liquid crystal panel sequentially including an active matrix substrate, a first alignment film, a liquid crystal layer, a second alignment film, and a counter substrate, the active matrix substrate sequentially including a first substrate, a first electrode, a first insulating layer, and a second electrode including a linear electrode portion, the counter substrate including a second substrate and a third electrode, the third electrode extending in a longitudinal direction of the sub-pixel at a right or left end of the sub-pixel, a ratio of a width of the third electrode to a width of the first electrode in a widthwise direction being 0.14 or greater and 0.25 or smaller, the control circuit being configured to switch between application of an alternating voltage and application of a constant voltage to the third electrode.

Liquid crystal display device

A liquid crystal display device is manufactured at a low cost. In the liquid crystal display device, three sub-pixel electrodes are connected by inter-electrode connection portions to form one pixel electrode. One TFT is connected to the pixel electrode. A screen of a liquid crystal display panel is divided into n (n&#x2265;2) of areas. Gate signal lines G of each divided area are scanned simultaneously one line at a time in each divided area. A backlight device emits light after completion of the scanning of each divided area.

Liquid crystal display device with time-division driving

In a liquid crystal display device (), each pixel row group is selected by a common scan signal voltage, each pixel row group including N pixel rows which adjoin one another in a column direction. Where two pixel rows which adjoin each other in a column direction and which are included in different pixel row groups are a first pixel row and a second pixel row, the first pixel row includes a pixel which has a pixel electrode () capacitively coupled with a gate bus line () which is associated with the second pixel row. When the first pixel row is included in the qgroup, the second pixel row is included in the (q+1)group. A scan signal voltage supplied to gate bus lines which are associated with the (q+1)group switches from low to high before a scan signal voltage supplied to gate bus lines which are associated with the qgroup switches from high to low.

Liquid crystal display device and driving method therefor

A liquid crystal display apparatus includes a liquid crystal display panel including a first substrate, a second substrate, and a liquid crystal layer and a plurality of pixels. The first substrate includes a first electrode provided in each of the pixels and a first horizontal alignment film that determines a pretilt orientation of a liquid crystal molecule. The second substrate includes a second electrode provided to face the first electrode and a second horizontal alignment film that determines the pretilt orientation of the liquid crystal molecule. Each of the first and second horizontal alignment films is a photoalignment film. At least one of the first substrate and the second substrate includes an anchoring structure in each of the pixels. The liquid crystal display panel further includes an alignment sustaining layer which is formed on the surface of each of the first and second horizontal alignment films on the liquid crystal layer side, is configured with a photopolymer, and imparts a pretilt angle greater than 0&#xb0; to the liquid crystal molecules.

Liquid crystal display apparatus and manufacturing method of liquid crystal display apparatus

A liquid crystal display device includes sub-pixel electrodes respectively provided to three sub-pixels, and an interelectrode connection portion that connects sub-pixel electrodes adjacent to each other among the sub-pixel electrodes. The interelectrode connection portion is provided in a position where boundaries of liquid crystal alignment directions of sub-pixels adjacent to each other are connected.

A liquid crystal display device performs displaying by field sequential driving. The liquid crystal display device includes a plurality of scanning lines; and a plurality of signal lines including a plurality of pairs of signal lines, each pair of signal line being connected to one pixel column. Under field sequential driving, within one field period of emitting any of a plurality of color rays, there is an overlap between: a first period in which a first scanning line group included among the plurality of scanning lines are scanned and one of the pair of signal lines is used to perform signal writes; and a second period in which a second scanning line group included among the plurality of scanning lines are scanned, and another one of the pair of signal lines is used to perform signal writes.

In particular case second vertical scanning period includes a write period in which a first potential difference V1 is to be given to an upper electrode and a lower electrode. In another particular case, the second vertical scanning period includes a write period in which a second potential difference V2 being greater than the first potential difference V1 is given to the upper electrode and the lower electrode. In the former write period, substantially the same potential as that of a counter electrode is given to the upper electrode, and a different potential from that of the counter electrode is given to the lower electrode. In the latter write period, substantially the same potential as that of the counter electrode is given to the lower electrode, and a different potential from that of the counter electrode is given to the upper electrode.

A liquid crystal display device () includes a first liquid crystal display panel () configured to be capable of taking a transparent displaying state and a second liquid crystal display panel (), such that the first liquid crystal display panel allows at least a portion of light going out of the second liquid crystal display panel to be transmitted in the transparent displaying state. The first liquid crystal display panel includes a first liquid crystal layer (L) interposed between a pair of substrates, and first and second polarizers (F,B) between which the first liquid crystal layer is interposed; the second liquid crystal display panel includes a second liquid crystal layer (L) interposed between a pair of substrates, and a third polarizer (F) placed on a side of the second liquid crystal layer that is closer to the first liquid crystal display panel; the second polarizer (B) of the first liquid crystal display panel is on a side closer to the second liquid crystal display panel; and a transmission axis of the second polarizer (B) and a transmission axis of the third polarizer (F) are not orthogonal.

A liquid crystal display device () includes a liquid crystal display panel () including a first substrate (), a second substrate (), and a liquid crystal layer (). The first substrate includes a first electrode () provided for each pixel, and a second electrode () for generating a lateral field across the liquid crystal layer in cooperation with the first electrode. The second substrate includes a third electrode () for generating a vertical field across the liquid crystal layer in cooperation with the first electrode and the second electrode. Each pixel is capable of switchably presenting a black displaying state where a vertical field is generated across the liquid crystal layer, a white displaying state where a lateral field is generated across the liquid crystal layer, and a transparent displaying state where a rear face side of the liquid crystal display panel is visible in a see-through manner with no voltage being applied to the liquid crystal layer. The first electrode includes a plurality of linear portions (), the plurality of linear portions being arranged so that at least one of the following exists in a plurality: the direction that the linear portions extend and the pitch of the linear portions.

A liquid crystal display device () includes a liquid crystal display panel () and an illumination element (), and is capable of switching between: a first mode of displaying in which displaying is performed by using a plurality of color rays emitted from the illumination element; and a second mode of displaying in which the background is allowed to be perceived, with no color rays being emitted from the illumination element. Each pixel is, under the first mode of displaying, capable of switchably presenting a black displaying state with a vertical field being generated across the liquid crystal layer (), a white displaying state with a lateral field being generated across the liquid crystal layer, or a transparent displaying state of allowing the rear face side to be visible in a see-through manner with no voltage applied to the liquid crystal layer, and, under the second mode of displaying, capable of switchably presenting a black displaying state with a vertical field being generated across the liquid crystal layer, a transparent displaying state of allowing the rear face side to be visible in a see-through manner with no voltage being applied to the liquid crystal layer, a white displaying state with essentially only a vertical field being generated across the liquid crystal layer, or an intermediate level displaying state with essentially only a vertical field being generated across the liquid crystal layer.

A first substrate () in a liquid crystal display device () includes a first electrode () provided in each pixel and a second electrode () generating a lateral electric field in a liquid crystal layer () together with the first electrode. A second substrate () includes a third electrode () generating a vertical electric field in the liquid crystal layer together with the first electrode and the second electrode. Each pixel exhibits, in a switched manner, a black display state where black display is provided in a state where the vertical electric field is generated in the liquid crystal layer, a white display state where white display is provided in a state where the lateral electric field is generated in the liquid crystal layer, and a transparent display state where a rear side of a liquid crystal display panel () is seen through in a state where no voltage is applied to the liquid crystal layer. A potential difference between the first electrode and the second electrode at each gray scale level from a lowest level to a highest level is 60% or less of a potential difference between the second electrode and the third electrode in the black display state.

Pixels of a liquid crystal display device exhibit, in a switched manner, a black display state where black display is provided in a state where a vertical electric field is generated in a liquid crystal layer, a white display state where white display is provided in a state where a lateral electric field is generated in the liquid crystal layer, and a transparent display state where a rear side of a liquid crystal display panel is seen through where no voltage is applied to the liquid crystal layer. A gray scale level group including gray scale levels from a lowest level to a highest level includes a white level, a transparent level having a luminance higher than that of the white level, and a plurality of sub-transparent levels each having a luminance higher than that of the white level and lower than that of the transparent level.

An optical device () includes a first substrate () and a second substrate (), and an optical layer () interposed therebetween. The first substrate includes a first electrode () and a second electrode (), to which respectively different potentials can be applied. The optical layer () contains a medium (P) and anisotropically-shaped particles () whose alignment direction changes in accordance with the direction of an electric field applied to the optical layer. The medium is a liquid crystal material. When no electric field is applied to the optical layer, the anisotropically-shaped particles are aligned substantially vertically with respect to the substrate plane.

Optical apparatus and display apparatus provided with same

The present invention provides a liquid crystal display having the advantage of higher resolution and lower power consumption while having high transmittance. The present invention is a liquid crystal display provided with a first substrate, a second substrate and a horizontal orientation-type liquid crystal layer. The first substrate includes a plurality of source bus lines, a plurality of gate bus lines, a pixel electrode, a first common electrode, a first interlayer insulation film on the plurality of source bus lines, a first conductive layer on the first interlayer insulation film, a second interlayer insulation film on the first conductive layer and a second conductive layer on the second interlayer insulation film. The first common electrode includes a plurality of first linear portions having a linear shape. The pixel electrode includes one or more second linear portions. The plurality of first linear portions and one or more second linear portions are alternately disposed. All or every other two or more of the first linear portions are disposed on the source bus lines or the gate bus lines in parallel therewith, and are provided in one of the first and second conductive layers. The second linear portions are transparent, and are provided in the other of the first and second conductive layers.

Liquid crystal display

Growing community of inventors

Kawasaki, Japan

Kazutaka Hanaoka