Fujitsu Corporation

Toray Industries, Inc.

Shinoda Plasma Corporation

Shinoda Plasma Co., Ltd.

Shikoh Tech Co., Ltd.

Mitsui Toatsu Chemicals, Incorporated

Sanyo Chemical Industries, Ltd.

Tetsuya Makino

Toshiaki Yoshihara

Hironori Shiroto

Yoshinori Kiyota

Keiichi Betsui

Shinji Tadaki

Akihiro Mochizuki

Shigeo Kasahara

Kenji Awamoto

Hitoshi Hirakawa

Koji Shinohe

Masashi Watanabe

Tsutae Shinoda

Hiroaki Tamura

Junichiro Takahashi

Yoshio Shibukawa

Takefumi Hidaka

Takamitsu Bunno

Yoko Shinoda

Masakatsu Nakatsuka

Toshiaki Narusawa

Masahiro Satoh

Shuntaro Hosaka

Kunikiyo Yoshio

Tetsuya Watanabe

Takayuki Imaoka

Masayuki Kaneko

Katsuhiro Shibayama

Tatsuroh Yanagi

Tetsuya Katou

Koji Kishimoto

Masayuki Wakitani

Yoshihiro Oyama

Naoko Sugita

Tohru Itoh

The present invention provides a deep ultraviolet radiation apparatus that is safe and has a high bacteria eliminating effect. The ultraviolet radiation apparatus comprises an optical filter that prevents the transmission of ultraviolet light of 240 nm or more emitted from a phosphor, wherein the optical filter is arranged facing light emitting surfaces of a gas-discharging tube array-type surface-emitting ultraviolet light source device comprising phosphor layer having a broad emission spectrum with a wavelength width of at least 210 nm to 250 nm with a peak wavelength of 228 nm. Light irradiated from the light source device is incident on a filter membrane with an incident angle thereof being altered by a transparent substrate of the optical filter. An ozone generation space may be formed between the surface-emitting ultraviolet light source device and the optical filter.

Ultraviolet radiation apparatus

A light-emitting tube array-type light source device includes: a plurality of light-emitting gas discharge tubes; and an electrode substratesupporting the light-emitting gas discharge tubes in parallel on an upper surface thereof, the electrode substrate having a plurality of slits partially exposes a bottom surface of each light-emitting tube, thereby the light-emitting gas discharge tubes can be cooled through the slits.

Light-emitting tube array-type light source device

A large-scale display device having a plurality of display units which each include a plurality of elongated plasma tubes each filled with a discharge gas, and at least one pair of display electrodes disposed outside the plasma tubes, voltage applying means which applies a drive voltage to the display electrodes to cause electric discharge in the plasma tubes for display. Vertically adjoining ones of the display units respectively have adjoining portions which are offset thicknesswise from each other for prevention of contact between the plasma tubes of the vertically adjoining display units. The voltage applying means is disposed away from the adjoining portions of the vertically adjoining display units.

Large-scale display device

In a liquid crystal display device that uses a liquid crystal material having spontaneous polarization and is actively driven by a TFT, a voltage corresponding to image data is applied twice by driving the TFT of each pixel electrode on a line by line basis of a liquid crystal panel, during writing in one frame. During erasure in one frame, voltage application to liquid crystal by batch selection of all the pixel electrodes is performed three times. With this three times of voltage application, it is possible to achieve a black display state in each pixel and make the stored charge amount at the liquid crystal in each pixel substantially zero.

Driving method of liquid crystal display device and liquid crystal display device

A liquid crystal display device displays an image by stacking a plurality of liquid crystal panels, and by controlling a light transmittance with voltage application to liquid crystal of each panel, wherein during execution of voltage application to the liquid crystal of one of the panels, a voltage to the liquid crystal of the other panel serves as a non-display voltage. No image is displayed simultaneously on the two or more stacked liquid crystal panels. In the liquid crystal panel to which no voltage is applied and on which no image is displayed, the longitudinal axial direction of liquid crystal molecules coincides with the polarizing axial direction of polarizers, or is orthogonal to the polarizing axial direction; therefore, no influence is exerted on the overall double refraction, and the overall voltage-transmitted light intensity characteristic corresponds to the sum of the voltage-transmitted light intensity characteristics of the respective panels.

Liquid crystal display device and display method

This invention provides a plasma tube array-type display device and a luminance correcting method realizing reduced variations in luminance values of a plasma tube array. A gradient of the luminance value in the longitudinal direction of one plasma tube is calculated on the basis of the obtained luminance value at a plurality of positions in the longitudinal direction of at least one plasma tube. A difference of the luminance value of each plasma tube obtained at the same relative position. On the basis of the gradient of the luminance value and the difference of the luminance value of each plasma tube at the same relative position, a correction luminance value in each discharge cell in the longitudinal direction of each of the plurality of plasma tubes is calculated.

Plasma tube array-type display device and luminance correcting method

A liquid crystal panel includes a glass substrate with pixel electrodes that are arranged in a matrix shape, TFTs that are connected to the pixel electrodes, and a glass substrate with an opposing electrode and color filters that are arranged in a matrix shape. A liquid crystal layer is formed in a space between the glass substrates by filling a ferroelectric liquid crystal into the space. When writing display data, and when deleting display data that has been written, a voltage, not including 0V, that becomes a voltage potential, or in other words, a voltage that is greater than a threshold voltage at which the optical characteristic of the filled ferroelectric liquid crystal changes is applied between the opposing electrode and pixel electrodes. An image is displayed over all gradation numbers, including the low-gradation side, and the display characteristic is improved.

Drive method for liquid crystal display device and liquid crystal display device

This invention provides a plasma tube array-type display sub-module that realizes one seamless large screen of a display device and prevents degradation in quality of an image to be displayed on the large screen. The electromagnetic wave shield layer is formed so as to extend beyond an effective display region over, where the plurality of plasma tubes is arranged on one side of the front-side supporting sheet. Moreover, at least one further function layer is formed only over the effective display region. The front-side supporting sheet with display electrodes and the electromagnetic wave shield layer is bent toward the back direction along a side end of the effective display region in order to join plasma tube array-type display sub-modules.

Plasma tube array-type display sub-module and display device

Liquid crystal display device having spontaneous polarization

In a liquid crystal display device that carries out image display using multiple liquid crystal panels stacked, the average change in the direction of the optical axis due to the response of liquid crystal molecules with respect to the applied voltage, that is, the change in the direction of the long axis of the liquid crystal molecules with respect to the applied voltage, is made different among the liquid crystal panels. The desired brightness is attained at the overlaid portion of the liquid crystal panels.

Liquid crystal display device

A liquid crystal material is used in which the maximum angle of the optical axis change by liquid crystal molecule when a voltage of one polarity is applied is larger than 45 degrees and a condition of |2Ps&#xb7;A|&#x3e;|5(V)Clc&#xb7;A| is satisfied where Ps (nC/cm) is the magnitude of the spontaneous polarization per unit area, A (cm) is the electrode area of the pixel and Clc (nF/cm) is the liquid crystal capacity per unit area. The transmittance in the liquid crystal part is increased and excellent display can be performed without the provision of a storage capacitor. Consequently, the storage capacitor is unnecessary, so that the aperture ratio of the liquid crystal panel can be increased.

There is provided a liquid crystal display including a panel using a liquid crystal material having spontaneous polarization, such as ferroelectroic liquid crystal (FLC), having a faster response time suitable to display dynamic images. The FLC has the disadvantage caused by the incomplete memory effect at during driving for displaying 'black' in several frames, where the light transmittance is preferably desired zero. The panel in the display are driven signals so that the driving signals are applied across the picture element, where the signals are positively or negatively offset to reference voltage of the panel.

Display panel including liquid crystal material having spontaneous polarization

Although portions of electrodes in proximity to a driver IC are covered with an insulating film, part of the electrodes is not covered with the insulating film. Thus, this insulating film absent region functions as an external voltage supply region that receives, from the outside, application of a voltage which is different from an output voltage from a driving unit. When the alignment of the initial state is disarranged, an alignment process is performed by short-circuiting all electrodes of the driving unit and applying a voltage from the outside, through the external voltage supply region, whereby the alignment is restored to the initial state with the driving unit being mounted on a liquid crystal panel.

Liquid crystal display device and alignment process method

A liquid crystal display device comprising: a peripheral electrodethat is formed around the outside of a display regionon a liquid crystal paneland that generates an orientation state that is equivalent to that of the display region; and an inverted electrodethat is formed around the outside of the peripheral electrodeand that generates an orientation state that has polarity opposite to that of the display region; wherein the peripheral electrodeand the inverted electrodehave bipectinate construction and are arranged on both sides of a non-oriented buffer region. Orientation defects that are generated in a seal are trapped inside the buffer regiondue to the existence of the peripheral electrodeand inverted electrodethat have different growth directions, so the orientation defects do not intrude into the display region

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Kawasaki, Japan

Tetsuya Makino