Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Masanori Kimura

Katsuhiko Kumagawa

Hiroyuki Yamakita

Tetsuo Fukami

Akinori Shiota

Yukio Tanaka

Ichiro Sato

Satoshi Asada

Kenji Nakao

Kazuo Inoue

Yoshinori Tanaka

Daiichi Suzuki

Kazunori Komori

Akio Takimoto

Takashi Okada

Hirofumi Wakemoto

Hiroshi Satani

Keisuke Tsuda

Toshiyasu Sugio

Toru Matsunobu

Kaoru Sato

Satoshi Yoshikawa

Kazuhiro Nishiyama

Yoshinori Kobayashi

Junko Asayama

Yoneharu Takubo

Katsuyuki Arimoto

Masaki Fukuda

Kensho Teranishi

Kunihiro Mima

Michiko Okafuji

Ukyou Katsura

Takehiko Ide

Teiichi Kimura

Yoshinobu Soeda

Noriyuki Kizu

Tomokazu Ichiriki

Munenori Aoyagi

A filling rate measurement method includes: obtaining a space three-dimensional model generated by measuring a first storage having an opening and a first storage space in which a measurement target is to be stored, the measuring being performed using a range sensor facing the first storage; obtaining a storage three-dimensional model that is a three-dimensional model of the first storage in which the measurement target is not stored; extracting a target portion corresponding to the measurement target from the space three-dimensional model using the space three-dimensional model and the storage three-dimensional model; calculating a first three-dimensional coordinate system; estimating a target three-dimensional model using the target portion and the first three-dimensional coordinate system, the target three-dimensional model being a three-dimensional model of the measurement target in the first storage space; and calculating a first filling rate of the measurement target with respect to the first storage space.

Filling rate measurement method, information processing device, and recording medium

An optical disk device includes an optical pick-up module including a rotating portion rotating an optical disk; a carriage mounting at least a light source and being provided movably within the optical pick-up module; and a cover having an opening formed thereon, a light being radiated from the light source through the opening toward the outside of the cover; and a tray supporting the optical pick-up module. The tray includes an optical disk attachment region portion opposed to the optical disk and an outside portion provided on an outside of the optical disk attachment region portion. The outside portion has a ledge along its portion adjacent to the circular perimeter of the optical disk. The optical disk, when mounted on the rotating portion, entirely lies between first and second planes, the first plane being defined by the surface of the cover and the second plane being defined by a first of opposing surfaces of the ledge, which first opposing surface is closer to the surface of the cover than is a second of the opposing surfaces of the ledge.

Optical disk device having an optical pick-up module and tray arranged to carry out improved cooling

An active matrix type display apparatus is provided that is inexpensive, has less crosstalk, has no flickering and a brightness gradient, and is suitable for a large screen size. The display apparatus includes a plurality of pixel electrodes arranged in a matrix, switching elements (TFTs) connected thereto, scanning electrodes, video signal electrodes, common electrodes, and a counter electrode, wherein liquid crystal, for example, is interposed between the pixel electrodes and the counter electrode. Assuming that a gate-drain capacitance is C, a common electrode-pixel electrode capacitance is C, and the total capacitance connected to the pixel electrodes is Cin this configuration, &#x3b1;and &#x3b1;represented by &#x3b1;=C/C, &#x3b1;=C/Care set to be different values between a portion close to feeding ends in a screen and a portion away therefrom.

Active matrix type display apparatus, method for driving the same, and display element

Driving a plasma display panel, in which generation of a region having brightness non-uniformity can be reduced over an entire screen without changing the voltage and pulse width of sustain pulses, to enable suppression of an increase in power consumption. This driving of the plasma display panel comprises (i) an initialization period for forming a discharge cell at an intersection where a scan electrode and a sustain electrode meet a data electrode and generating initialization discharge in the cell, (ii) a writing period for generating writing discharge in the discharge cell, and (iii) a sustain period for generating sustain discharge by alternately applying sustain pulses to the scan electrode and sustain electrode of the discharge cell. The rise time of the sustain pulses applied to the scan electrode and sustain electrode during the sustain period is shortened at a frequency of once every several times.

Method for driving plasma display panel

An array substrate () is provided with a pixel electrode () disposed in a region defined by two adjacent gate wirings () and two adjacent source wirings (), a switching element () for switching a voltage applied to the pixel electrode () from the source wiring () based on a signal voltage supplied from the gate wiring (), a common wiring () arranged between the two adjacent gate wirings () and a common electrode () being electrically connected to the common wiring () and generating an electric field between the pixel electrode () whereto a voltage is applied, wherein the pixel electrode () comprises a first pixel electrode () and a second pixel electrode (), and the opposing electrode () comprises a first opposing electrode () and a second opposing electrode (), wherein a first region generates an electric field between the first pixel electrode () and the first opposing electrode () whose light transmittance is lower than that of the first pixel electrode () and a second region generates an electric field between the second pixel electrode () and the second opposing electrode () whose light transmittance is higher than that of the second pixel electrode () are formed.

Display and its driving method

A liquid crystal display element driving method or a liquid crystal display device uses a liquid crystal display element having a plurality of pixels constituting a screen; divides a frame period into a plurality of write periods and outputs gate signals to select the pixels sequentially during the write periods; forms each of source signals such that the source signal includes a picture signal and a non-picture signal respectively assigned for the write periods; writes each of the source signals corresponding to the selected pixels to each of the pixels with its polarity being alternated; and displays an image responsive to the source signals on the screen of the liquid crystal display element in such a manner that a transmittivity of liquid crystals of each of the pixels is controlled in accordance with the written source signal, wherein the non-picture signal having a polarity identical to that of the picture signal to be written subsequently is written to the pixels.

Liquid crystal display element driving method and liquid crystal display using the same

Disclosed is a display capable of improving uniformity of luminance and chroma in a plane of a display panel. When point at which the light source is turned ON is represented by T, transmittance in a display region onto which the video signals are being written at the point Tis represented by M, point at which the light source is turned OFF is represented by T, transmittance in the display region onto which the video signals are being written at point Tis represented by M, a maximum value of the transmittance in the display region of the light modulation element in a period during which the light source is ON is represented by M, and the write period is represented by Twrite, the illuminating device control portion is adapted to control the illuminating device so as to satisfy a formula given by [|M&#x2212;M|Twrite]/[M(T&#x2212;T)]&#x2266;0.92.

Display

Active matrix type display apparatus method for driving the same, and display element

A liquid crystal display of the present invention is adapted to perform initialization by inputting voltages with different polarities to two pixel electrodes () adjacent in front and back direction. It is preferable that in the two pixel electrodes () adjacent in front and back direction, the pixel electrode () located on back side is provided with a first protrusion () at a front side and back direction, the pixel electrode () adjacent in front and back is provided with a second protrusion () located on front side is provided with a second a second protrusion () on a back side edge ()thereof.

Liquid crystal display and its driving method

In a liquid crystal panel in which pseudo dot inversion driving is performed, the occurrence of flicker or vertical and horizontal strings is prevented by preventing an alignment shift between individual layers during the fabrication of a TFT array from producing a difference between the respective abilities of thin-film TFTs to charge adjacent pixels (). For this purpose, the liquid crystal display panel is constructed such that two TFTs which are enclosed by two adjacent image signal lines () and scan signal lines () and adjacent to each other along the signal lines () have respective source electrodes () adjacent to the different image signal lines (). The source electrodes () and drain electrodes () of the two TFTs connected to the adjacent pixels () are alternately arranged such that variations caused by the alignment shift in the sizes and areas of overlapping portions between the individual layers of the TFTs are equal or the same.

Liquid crystal device

The present invention provides a display apparatus that can reduce a voltage irregularity and a brightness irregularity accompanied by making an enlarged and a high resolution type display apparatus. The display apparatus comprises plural pixel electrodesarranged in a matrix, a switching elementconnected with the pixel electrode, a scanning electrode, a picture signal electrode, an opposite electrode forming a capacitance with the pixel electrode, and further comprising; a storage capacitancebetween the pixel electrodeand the scanning electrodeother than the scanning electrodeof the present line; more than two capacitance elements connected with the pixel electrode, including at least one of a gate-drain inter-electrode capacitanceof the switching elementand the storage capacitance, having a different value according to the distance from the power feeding edge of the scanning electrode; wherein, each capacitance in each pixel is set so that, when all capacitance connected with the pixel electrodein a pixel is denoted as Ctot, a first capacitance ratio &#x3b1; gd=Cgd/Ctot increases continuously or in stages according to the distance from the power feeding edge of the scanning electrode, or a second capacitance ratio &#x3b1; st=Cst/Ctot is substantially constant.

Display unit and drive method therefor

An active matrix liquid crystal display element capable of reducing flicker comprises: a plurality of source lines; a plurality of gate lines arranged so as to intersect the plurality of source lines in a plan view, for transmitting a gate signal; a plurality of pixels defined by the plurality of source lines and the plurality of gate lines, constituting an image display plane; a pixel electrode provided for every pixel; an opposed electrode facing the pixel electrode across a liquid crystal layer; a storage capacitor for holding a voltage applied between its corresponding pixel electrode and the opposed electrode; and a pixel transistor having a source electrode, a drain electrode and a gate electrode which are connected to a corresponding one of the source lines, a corresponding one of the pixel electrodes and a corresponding one of the gate lines respectively, and being turned ON or OFF by the gate signal, wherein an index B given by B=Lst/Lgd is equal to or greater than 7, where a periphery length of the storage capacitor is Lst and a periphery length of a gate electrode to pixel electrode capacitor of the pixel transistor is Lgd.

Active matrix liquid crystal display element

The liquid crystal display device having an array substrate () provided with a pixel electrode () disposed in a region defined by two adjacent gate wirings () and two adjacent source wirings (), a switching element () for switching a voltage applied to the pixel electrode () from the source wiring () based on a signal volume fed from the gate wiring (), a common wiring () formed between the two adjacent gate wirings (), a common electrode () being electrically connected to the common wiring () and generating an electric field between the common electrode () and the pixel electrode () for driving the liquid crystal, and a storage capacity electrode () electrically connected to the common wiring (), wherein the common wiring () and the storage capacity electrode () are layered so as to hold at least some part of the pixel electrode () in between through insulating layers ().

Liquid crystal display device having additional storage capacitance

This is an active matrix liquid crystal display device comprising a capacitive accumulation portion formed by overlapping a pixel electrode, an insulating layer and a common electrode for each pixel area, and a non-electrode area in a part of the pixel area which is not covered with a pixel electrode, wherein a peripheral shape of said capacitive accumulation portion on a side contacting said non-electrode area is substantially the same between the respective pixels, and a value of a storage capacity in said capacitive accumulation portion differs on a feeding side and on a termination side, the value on the feeding side being larger than the value on the termination side. Thereby, a constant aperture ratio can be maintained by changing the storage capacity value for each pixel. Furthermore, by using a lateral electric field method liquid crystal display device, the storage capacity value can be changed while maintaining the aperture ratio of the pixel constant, and the electric fields applied to the liquid crystal layer in the display portion can be kept evenly. As a result, deterioration and unevenness of display characteristics do not occur. Moreover, even in the case of using a light shield film to improve contrast and so forth, a light shield film with a narrower width than that in a conventional configuration can be used, so that the aperture ratio does not drop drastically.

Liquid crystal display device

One of a pair of substrates with liquid crystals sandwiched therebetween includes a plurality of pixels each of which is provided with a scanning electrode, an image signal electrode, a switching element provided at an intersection of the scanning electrode and the image signal electrode, a pixel electrode connected to the image signal electrode via the switching element, a counter electrode, and a busbar electrically connected to the counter electrode. A portion of the pixel electrode is overlapped with the busbar so as to make up a storage capacitance. A shape of the pixel electrode is altered for each pixel so that a value of the storage capacitance becomes smaller from a feeding side to a termination side. The portion of the pixel electrode overlapped with the busbar so as to make up the storage capacitance is located within the busbar in a plan view of the device.

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Osaka, Japan

Masanori Kimura