Sharp Kabushiki Kaisha Corporation

Fujitsu Corporation

Toyo Corporation

Other

Sony Corporation

Nissan Motor Company Limited

Fujitsu Semiconductor Limited

Takashi Kurihara

Yasuhiro Kume

Nobuaki Yamada

Kazuhiko Tamai

Masato Imai

Kunihiko Sasaki

Noriaki Onishi

Nobukazu Nagae

Hiroshi Nakanishi

Masaru Inoue

Takaaki Okamoto

Shuichi Kozaki

Shinichi Terashita

Fumikazu Shimoshikiryo

Kazuyuki Endo

Takako Adachi

Kazutaka Takeuchi

Shinya Saeki

Masahiro Suzuki

Atsuhito Murai

Masaki Uehata

Masahiko Kondo

Hiroaki Kojima

Kenji Majima

Tomoko Nango

Eiji Fujine

Hirofumi Takeda

Kenji Hamada

Masuo Inui

Toshikazu Hirata

Akio Kamoshita

Ryo Shibata

Yukisada Horie

Akihiko Matsumoto

Kenji Wada

Takeo Moriyama

Noriko Matsuda

Yusuke Tsuda

There is provided a physical property measuring method for a TFT liquid crystal panel, includes an impedance setting step of setting the impedance between the source and drain of a TFT of the TFT liquid crystal panel to be less than or equal to a predetermined value, a voltage application step of applying a voltage that cyclically varies to a liquid crystal layer of the TFT liquid crystal panel. And the method further includes a physical property measuring step of measuring a transient current flowing through the liquid crystal layer to which the voltage that cyclically varies is applied in the voltage application step to measure physical properties of the liquid crystal layer.

Physical property measuring method for TFT liquid crystal panel and physical property measuring apparatus for TFT liquid crystal panel

The present invention relates to a touch-sensor-provided liquid crystal display device (), the touch-sensor-provided liquid crystal display device () including a liquid crystal display panel () which includes a plurality of photo sensors () for detecting a touched position, and a backlight unit () provided on a backside of the liquid crystal display panel (). The backlight unit () emits light at least part of which serves as light (L) dedicated to sensing which is used for position detection by the plurality of photo sensors (), and the light (L) dedicated to sensing travels in a direction (D) which is different from a direction (D) toward a main viewer (V) of the liquid crystal display panel ().

Touch-sensor-provided liquid crystal display device

In a liquid crystal display device performing alternating-current driving, at least one of a gate voltage amplitude Vgp&#x2212;p(p) upon application of a positive polarity voltage and a gate voltage amplitude Vgp&#x2212;p(n) upon application of a negative polarity voltage is changed in accordance with a liquid crystal driving frequency. Thus, an effective value of a liquid crystal application voltage in a positive polarity is set to be equal to an effective value of a liquid crystal application voltage in a negative polarity irrespective of the liquid crystal driving frequency, so that flicker is prevented from occurring when the liquid crystal driving frequency is switched. As the liquid crystal driving frequency is low, a gate low voltage Vgln after application of the negative polarity voltage is set to be low. Thus, a leak current from a TFT is reduced in the negative polarity, and a liquid crystal element is improved in voltage holding ratio.

Liquid crystal display device

A method, apparatus, and recording medium including computer instructions for estimating the size of a core section of a semiconductor integrated circuit are provided. The method includes calculating a total net length of wires of nets and usable channel length of the core section by referring to circuit information and a layout parameter that are used to design the semiconductor integrated circuit. The method includes determining a size of the core section that satisfies conditions based on total net length and usable channel length.

Method and apparatus for estimating core size in designing semiconductor integrated circuit

In a liquid crystal display element of the present invention, the aligning capability for imparting pre-tilt angles to a liquid crystal material is imparted only to the surface of the alignment film of one of the substrates, the material layer having dielectric anisotropy includes a chiral material and a liquid crystal material with a nematic liquid crystal phase, 0.25&#x2266;d/p&#x2266;0.50 is satisfied assuming that the thickness of the material layer having the dielectric anisotropy is d and the chiral pitch length of the liquid crystal material is p, and 1000&#xd7;d/p&#x2266;&#x394;n&#xd7;d is satisfied assuming that the refractive index anisotropy of the liquid crystal material is &#x394;n.

Liquid crystal display element

A liquid crystal display element of the present invention is arranged so that a material layer having dielectric anisotropy includes a chiral material and a liquid crystal material with a nematic liquid crystal phase, and 0.25&#x2266;d/p&#x2266;0.50 is satisfied assuming that the thickness of the material layer is d and the chiral pitch length of the liquid crystal material is p.

The liquid crystal display device includes a first substrate, a second substrateplaced to face the first substrate, and a liquid crystal layerinterposed between the first substrate and the second substrate. The liquid crystal display device has a plurality of pixels each including a first electrodeformed on the first substrate, a second electrodeformed on the second substrate, and the liquid crystal layer interposed between the first electrode and the second electrode. The second electrodehas at least one openingformed at a predetermined position in the pixel, the first substrate has a shading region in gaps between the plurality of pixels, and a wall structureis placed regularly on the surface of the first substrate facing the liquid crystal layer in the shading region. The liquid crystal layer has at least one liquid crystal domain having axisymmetric alignment formed when at least a predetermined voltage is applied, and the center axis of the axisymmetric alignment of the at least one liquid crystal domain is formed in or near the at least one opening.

LCD device having vertically aligned liquid crystal layer between first and second substrates in which the first substrate has a first opening and a second opening and/or cut in which the second opening and/or cut width is greater than the first opening width

A liquid crystal display device including a first substrate, a second substrateplaced to face the first substrate, a liquid crystal layerinterposed between the first and second substrates, a first electrodeformed on the first substrate, a second electrodeformed on the second substrate, an interlayer insulating filmplaced between the first electrode and the first substrate, and a wall structureformed integrally with the interlayer insulating film. The liquid crystal display device has a plurality of pixels each including the first electrode, the second electrode and the liquid crystal layer interposed between the first and second electrodes. A shading region surrounds each of the plurality of pixels, and the wall structure is placed regularly in the shading region. A groove structuremay be formed in place of the wall structure.

Liquid crystal display device and fabrication method thereof

A method for accurately determining the provisional quantity and provisional locations of power supply pads prior to detailed layout of a semiconductor integrated circuit. The method decreases redesigning, shortens the design time, and lowers design costs. The method includes performing a power supply network analysis of the core section to obtain voltage values of the nodes, calculating current values between the nodes from the voltage values of the nodes and the resistances between the nodes, and calculating current values of the power supply pads from the current values between the nodes. The method further includes determining whether to eliminate or add a power supply pad depending on whether the current value of each power supply pad exceeds the current capacity of an associated IO buffer.

Method and apparatus distribution power suply pad of semiconductor integrated circuit

Liquid crystal display device for transflector having opening in a first electrode for forming a liquid crystal domain and openings at first and second corners of the domain on a second electrode

The invention has an object to provide a method for simulating power voltage distribution of a semiconductor integrated circuit, by which it is possible to attempt to shorten the time required for preparing a power unit model and it is possible to carry out a highly accurate simulation with uneven distribution of a floor plan taken into account. In Step S, design information (Core size CS, core ring width CW, block shape BS, macro shape MS, block current BI, macro current MI, etc.) is inputted into a simulator. In Step S, information regarding a floor plan (Block position BP, macro position MP, power I/O position IOP) is inputted into the simulator by a designer. In Step S, the power unit management table is initialized, and resistance modeling and current source modeling are also carried out. In Step S(FIG.), the static IR drop is calculated based on the power unit management table CT obtained in Step S

Method for simulating power voltage distribution of semiconductor integrated circuit and simulation program

The invention provides an image shifting device including at least one image shifting part for periodically shifting the position of an optical axis. The image shifting part includes a liquid crystal devicefor switching a polarization direction of light between two orthogonal directions in accordance with High/Low level of an applied voltage, and a birefringent devicehaving different refractive indexes depending upon the polarization direction of the light. The liquid crystal deviceand the birefringent deviceare disposed to transmit light in this order. A liquid crystal layer included in the liquid crystal deviceis made of a TN liquid crystal layer that satisfies a relationship formula of 0.25&#x3c;d/p&#x3c;1, wherein a natural pitch length is indicated by p and a cell gap is indicated by d, and is disposed to be twisted at 90&#xb0; within the liquid crystal cell.

Image shifting device, image display, liquid crystal display, and projection image display

A method of preparing layout data of patterns formed in a scribe area. First, library data on which a plurality of patterns and arrangement limiting conditions of each pattern and arrangement importance of each pattern are registered is prepared. A pattern to be arranged in the scribe area is selected from the library data. Then, the selected pattern in the scribe area is arranged in accordance with the arrangement limiting conditions and arrangement importance of the selected pattern. In this method, it is not necessary to prepare many arrangement models, so that preparing time of layout data is shortened.

Method and apparatus for prepareing patterns used for manufacture of semiconductor device

Growing community of inventors

Yokohama, Japan

Takashi Kurihara