Mitsubishi Electric Corporation

Mitsubishi Denki Kabushiki Kaisha

Other

Mitsubishi Electronic Corporation

Tetsuya Satake

Toshiaki Fujino

Takanori Okumura

Akimasa Yuuki

Yasunori Niwano

Shingo Nagano

Kazunori Okumoto

Takahiro Nishioka

Yoshimitsu Ishikawa

Kazuhiro Ishiguchi

Taro Kumagai

Tetsuyuki Kurata

Syuichi Kira

Takashi Hirano

Naoki Nakagawa

Yusuke Yamagata

Suguru Nagae

Takumi Nakahata

Atsushi Ito

Susumu Sato

Takeshi Ono

Yuji Ogawa

Masafumi Agari

Tadashi Saito

Hiroshi Umeda

Kenji Arita

Kyoichiro Oda

Koji Yonemura

Shin Tahata

Manabu Iwakawa

Hiroyuki Fuchigami

Yoshihiro Togashi

Toru Kokogawa

Hitoshi Koyama

Kazuko Wakita

Akimasa Yuki

Shuichi Kira

Hironori Matsueda

Toshiaki Maehara

Yuriko Takada

Taroh Yoshino

In a liquid crystal display device, the liquid crystal panel has a display surface of a planar shape on which a plurality of pixels are located. The front protective plate is located so as to face the display surface of the liquid crystal panel. The optical path changing portion is located between an emission surface of the front protective plate and an air layer located closer to the back side than the emission surface is and located closest to the emission surface. The optical path changing portion changes an optical path of light that enters the optical path changing portion so as to expand an emission angle when the incident light is emitted from the emission surface of the front protective plate.

Liquid crystal display device with a display surface of a planar shape

Information display for vehicle

A display panel includes sub-pixel pairs arranged laterally at a predetermined pitch, the sub-pixel pair including two sub pixels displaying images for right and left eyes respectively. A parallax-barrier shutter panel includes sub apertures switching light-transmitting and light-blocking states by driving a liquid crystal layer held between two transparent substrates with transparent electrodes extending vertically. The sub apertures are arranged laterally at a pitch obtained by dividing a reference parallax-barrier pitch by N (N being an even number equal to or greater than four), the reference parallax-barrier pitch being determined on the basis of a predetermined design observation distance and the pitch of the sub-pixel pairs. The parallax-barrier shutter panel includes common driving areas obtained by dividing a display area laterally. (N&#xb7;M+N/2) pieces of the transparent electrodes (M being a positive integer) arranged in the common driving are connected with every N-th one of the transparent electrodes.

Stereoscopic image display apparatus, and drive method therefor

Each pixel of a multiple view liquid crystal display in a normally black mode includes a counter electrode provided with a slit for generating a fringe electric field. An alignment film subjected to liquid crystal alignment processing in a predetermined direction is disposed on a surface of a TFT substrate provided with the counter electrode. An angle formed by an extending direction of a slit at an end of a pixel region (a first region) and a direction of the liquid crystal alignment processing is greater than an angle formed by the extending direction of the slit in a central part of the pixel region (a second region) and the direction of the liquid crystal alignment processing. The first region has a higher transmittance than that in the second region when low luminance display is carried out.

Multiple view liquid crystal display

Liquid crystal molecules have a pretilt angle to the left-and-right direction in a plane perpendicular to the up-and-down direction, so that an end part of a first side as one side of a left side and a right side of the liquid crystal molecules is set closer to a backlight than an end part of a second side as the other side. Second edge parts of a black matrix adjacent to an upper side and a lower side of an opening have a straight line shape extending by inclination to mutually the same side in the left-and-right direction, so that an end part of the same side as a first side as one side of the left side and the right side of the second edge parts is positioned above the end part of the same side as the second side as the other side.

Liquid crystal display device

A liquid crystal display device of a horizontal electric field type includes: a first electrode and a second electrode formed on a liquid-crystal-side surface of the first transparent substrate, and two polarization plates respectively adhered such that respective transmission axes thereof are orthogonal to each other, wherein the liquid crystal material is rotated by an electric field generated between the first electrode and the second electrode. With respect to the transmission axis located in an extending direction between the first electrode and the second electrode, an initial orientation direction of the liquid crystal material is within a range between a direction rotated by 0.5-degree in an opposite response direction of the liquid crystal material and a direction orthogonal to an electric field direction generated between the first electrode and the second electrode.

The display device includes a display panel on which sub-pixel pairs are arranged in a lateral direction, and a parallax barrier shutter panel on which sub-openings that can be changed between a light transmittance state and a light-shielding state are arranged in a lateral direction. Arbitrary allocated number of adjacent sub-openings among the plural sub-openings belonging to a reference parallax barrier pitch are put into a light transmittance state, and the remaining sub-openings are put into a light-shielding state, so that a general opening is formed on the parallax barrier shutter panel. A sub-opening pitch of the sub-opening on the boundary part between the adjacent common driving areas is different from the sub-opening pitch of the other sub-openings.

Display device

A first polarizing plate is disposed on a first main surface of a liquid crystal display panel. A second polarizing plate is disposed on a second main surface of the liquid crystal panel. The first polarizing plate includes a first polarizer and a first phase difference film laminated on a main surface on the liquid crystal display panel side in the first polarizer. The second polarizing plate includes a second polarizer and a transparent film laminated on a main surface on the side opposite to the liquid crystal display panel in the second polarizer.

The display device includes a pair of insulating substrates arranged so as to be opposed, a bonding layer, and a strain suppressing plate. The bonding layer is provided on the outer surface side of one insulating substrate. The strain suppressing plate has rigidity higher than that of the insulating substrate to suppress the strain caused by curving the insulating substrate. The strain suppressing plate is fixed to the insulating substrate by the bonding layer.

Display device and method of producing the same

The liquid crystal display device according to this invention includes a control structure provided at each of or one of a liquid crystal side of a first substrate and a liquid crystal side of a second substrate to control a tilt direction of a liquid crystal upon application of a voltage to a liquid crystal layer, a first domain where a liquid crystal tilts in one direction upon application of a voltage to a liquid crystal layer, and a second domain where a liquid crystal tilts in a direction different from the tilt direction of the liquid crystal in the first domain by substantially 180&#xb0;. Herein, an angle formed by the tilt direction of the liquid crystal in the first domain and a horizontal direction of a screen in the liquid crystal display device falls within a range between 22&#xb0; and 39&#xb0; or a range between 51&#xb0; and 68&#xb0;.

In a liquid crystal display, a pixel driving circuitalternately displays a first image and a second image on a liquid crystal panel. A front lightlights up while the first image is displayed on the liquid crystal panel by the pixel driving circuit, and another front lightlights up while the second image is displayed on the liquid crystal panel by the pixel driving circuit. As a result, the liquid crystal display enables a viewer B to look at the second image different from the first image which it provides for a viewer A.

Liquid crystal display including a liquid crystal panel having two screens

In a liquid crystal display () having a curved display surface, long sides of pixel structures () are arranged along the curve direction (Y) of the display surface and on a side of counter substrate provided is a black matrix having a black matrix opening () whose length in the curve direction (Y) is not longer than E&#x2212;L {(T/2)+(T/2)+d}/R, assuming that the length of the display surface in the curve direction (Y) is L, the thickness of an array substrate is T, the thickness of the counter substrate is T, the size of the gap between the array substrate and the counter substrate is d, the radius of curvature of the curved display surface is R and the length of a long side of a pixel electrode () provided in each of the pixel structures () is E. It thereby becomes possible to suppress display unevenness resulting from positional misalignment of the two substrates due to curvature and provide a liquid crystal display achieving a high-quality display image.

Liquid crystal display

Light from a light sourceis linearly polarized by a polarizerThen it propagates via a half-mirroralmost parallel to the normal to a reflective liquid-crystal paneland falls on the reflective liquid-crystal panelThe reflected light reflected by the reflective liquid-crystal panelis received by a detectorvia the half-mirrorand an analyzerIn this state, the reflective liquid-crystal panelis rotated about an axis almost parallel to the normal to the reflective liquid-crystal paneland an angle (extinction angle) at which the output signal of detectorreaches minimum is measured. Then, the gap of the reflective liquid-crystal panelis detected based on the measured extinction angle. It is also possible to measure the output signals of detectorby arranging the analyzerin a state in which the transmission axis thereof is almost parallel to the polarization direction of the incident light and a state in which it is almost perpendicular thereto and to detect the gap of the reflective liquid-crystal panelbased on the measured signals.

Method and apparatus for detecting gap of liquid-crystal panel and apparatus therefor

Growing community of inventors

Tokyo, Japan

Tetsuya Satake