Casio Computer Co., Ltd.

Mitsubishi Electric Corporation

Mitsubishi Denki Kabushiki Kaisha

Tsuyoshi Ozaki

Jun Ogura

Tomoyuki Shirasaki

Manabu Takei

Teruhiko Kumada

Sohei Samejima

Hajime Takeya

Hiroyuki Osuga

Ikuhiro Yamaguchi

Shunji Kashiyama

Kazunori Morimoto

Tadahisa Tohyama

Toru Takahashi

Yoshihiko Konishi

Hiroyasu Yamada

Kazushi Sekine

Masataka Ohtsuka

Kenji Kobayashi

Minoru Kumagai

Yasushi Mizutani

Isao Ebisawa

Kazuhito Sato

Masami Kume

Yoshiyuki Matsuoka

Shinji Badono

Hirotsugu Morinaga

Tomomi Sawano

Takuo Ozawa

Shigenori Kabashima

Takashi Kidu

Sadao Sato

Ryo Usami

Jun Tsuruta

A method of manufacturing a printed wiring board () includes the steps of: forming a core including carbon fiber reinforced plastic having a primary through hole (); forming a first adhesive member () on a lower surface of the core to cover the primary through hole (); charging an insulating member into the primary through hole (); forming a second adhesive member () on an upper surface of the core; forming a third adhesive member () below the first adhesive member (); forming a fourth adhesive member () on the second adhesive member (); and forming interconnections on the core.

Method of manufacturing printed wiring board

A pixel includes a light emitting element and a driving element connected to the light emitting element. After an initial voltage is applied to one end of a current path of the driving element via the signal line, the pixel driving device acquires the threshold voltage of the driving element based on a voltage value at a terminal of the signal line when the initial voltage is cut off and the relaxation time is elapsed. The voltage-current characteristics of the driving element is acquired based on the voltage value at the terminal of the signal line when the current flows into the current path of the driving element via the signal line. The current gain value of the driving element is acquired based on the threshold voltage of the driving element. The image data is corrected based on the acquired threshold voltage.

Pixel driving device, light emitting device and light emitting device driving control method

A display drive apparatus performs a display drive of a display panel on the basis of display data and comprises a selection drive section for applying a selection signal to each of display pixels arranged in each row of the display panel, a data drive section for generating a drive signal based on the display data, and a power source drive section for setting at least a row as a writing region and at least a region as a designated region separated from the writing region by the number of one or more rows and sequentially moving correspondingly to moving of the writing region, and the power source drive section supplies a power source voltage for operating each display pixel to make each display pixel corresponding to the row of the writing region and each display pixel corresponding to the row of the designated region perform non-display operation.

Display drive apparatus, and display apparatus and display drive method thereof

An exposure device for exposing a photoreceptor, includes: data electrodes disposed for each of a plurality of columns parallel to a moving direction of the photoreceptor; selected electrodes disposed for each of a plurality of rows perpendicular to each of the data electrodes; light emitting element arrays including light emitting elements disposed near intersection points between the data electrodes and the selected electrodes in intersections between the data electrodes and the selected electrodes, the light emitting elements being linearly arrayed; a driving signal output circuit for generating a driving signal based on an image signal to supply the driving signal to the light emitting element arrays; and a column selection unit for switching the light emitting element arrays to be selected based on a lighting situation of each of the light emitting elements of each of the light emitting element arrays.

Exposure device, image forming apparatus and method for operating exposure device

A drive circuit array substrate allowing for tests without mounting any driver ICs and without using expensive panel contact jigs and production and test methods thereof are provided. A data voltage application circuit, data selection circuit, gate selection circuit, and anode driver connected to a display pixel forming zone are formed on a drive circuit array substrate. The data voltage application circuit, data selection circuit, gate selection circuit, and anode driver allows for lighting test and aging test of the light emitting elements in the display pixel forming zone and measurement of transistor characteristics without mounting any driver ICs and without using expensive panel contract jigs.

Drive circuit array substrate and production and test methods thereof

A display device includes a display panel having a plurality of signal lines and scanning lines with a plurality of display pixels containing current control type light emitting devices; a scan driver circuit which applies a scanning signal to each of the scanning lines and sets the display pixels connected to the scanning lines in a selective state; a signal driver circuit which generates gradation current based on a display data luminosity gradation component and supplies to the display pixels set in the selective state; a precharge circuit which applies a precharge voltage to each signal line and sets a capacity component attached to each of the scanning lines in a predetermined charged state; and an operation control circuit which controls setting of the light emitting devices in a non-light emitting state when the capacity component is set in a predetermined charged state.

Display device and associated drive control method

A display device includes a display panel having a display area in which a plurality of display pixels are two-dimensionally arranged, to display image information, a power supply driving section applying, to each of the display pixels in the display area, one of a first power supply voltage having a voltage value at which the display pixel is set to a non-display-operation state and a second power supply voltage having a voltage value at which the display pixel is set to a display operation state, and a control section controlling the power supply driving section to set a area-ratio of an first area in the display area in which the display pixels to which the first power supply voltage is applied are arranged to an second area in which the display pixels to which the second power supply voltage is applied are arranged.

Display device and driving control method for the same

A data acquisition circuit sets one of the potential value at one end of a signal line and the value of a current flown thereto when one end of a current path of a drive device is connected to a light emitting device with the other end thereof set to a potential value where no current flows to the light emitting device. Then the circuit causes current to flow via the current path and the signal line and acquires one of the value of the current flown to the signal line and the potential value at the one end of the signal line according to the set value. A correction operation circuit acquires a threshold voltage and a current amplification factor of the drive device based on one of the current and potential values thus acquired as well as on one of the potential and current values thus set.

Display driving apparatus, display apparatus and drive control method for display apparatus

A luminescence device according to the present invention includes a plurality of pixels arranged in a row direction and a column direction. Each pixel includes a luminescence driving transistor, a pixel electrode, a luminescence layer formed above the pixel electrode, and an opposing electrode formed above the luminescence layer. Current supply lines La connect the pixels in the row direction and are arranged to extend in the same direction. Adjoining current supply lines La are electrically connected to each other by a drain electrode of the luminescence driving transistor of the pixel positioned between these current supply lines La. Therefore, adjoining current supply lines La are made to be at the same potential.

Luminescence device, method of driving luminescence device, and method of manufacturing luminescence device

A light-emitting device comprises a power supply line, at least one data line, at least one pixel having a light-emitting element with one end electrically connected to the power supply line and another end set to a prescribed potential, and a first transistor connecting the data line(s) and one end of the light-emitting element, a current supplying circuit that outputs a verification current of a preset value, and a data driver unit having voltage measuring circuits that acquire a voltage of the one end of the light-emitting element as the verification voltage when the verification current flows via a current path of the data line and the first transistor of the pixel, from the one end of the light-emitting element to the other end from the current supplying circuit via the power supply line.

Light-emitting device, display device, and method for controlling driving of the light-emitting device

A CFRP core including a CFRP layer has a primary through hole. An adhesive member coats a wall surface of the primary through hole, and has a secondary through hole extending within the primary through hole. An electrically conductive layer is formed on a wall surface of the secondary through hole for electrically connecting upper and lower signal interconnections via the secondary through hole. A coating layer coats an outer peripheral edge of the CFRP core as seen in a plan view. Thereby, a printed interconnection board with low thermal expansivity and high thermal conductivity capable of preventing exfoliation of a CFRP layer on a side surface of a substrate using CFRP as a core, as well as preventing falling-off of carbon powders from the CFRP layer, and a method of manufacturing the same can be obtained.

Printed interconnection board having a core including carbon fiber reinforced plastic

The present invention improves luminance and light emitting efficiency of electroluminescent elements. A manufacturing method of electroluminescent elements includes forming a positive electrode on a substrate, forming an organic compound layer on the positive electrode, forming an electron injecting layer on the organic compound layer, and forming a transparent conductive film on the electron injecting layer, thus forming electroluminescent element. After forming the transparent conductive film on the electron injecting layer, by applying a voltage between the positive electrode and the transparent conductive film while heating the electroluminescent element, light emission of the electroluminescent element such as luminance and light emitting efficiency is improved.

Electroluminescent element and manufacturing method thereof

A manufacturing method of a display panel including a light emitting element including a first electrode, a carrier transporting layer constituted of at least one layer and a second electrode so as to layer the first electrode, the carrier transporting layer and the second electrode, and the manufacturing method includes forming the first electrode in a predetermined region on a substrate, forming an opening from which only a predetermined region of the first electrode is exposed by patterning an insulation film by carrying out an etching after forming the insulation film on the substrate including the first electrode and forming the carrier transporting layer at least on the first electrode which is exposed from the opening.

Display panel and manufacturing method of display panel

An advanced grid structure has high strength and low thermal expansion, and includes first, second, and third tape prepreg groups each including a plurality of tape prepregs. Each tape prepreg includes carbon fibers that are aligned in a first, second, or third direction and that form respective first, second, and third grid sides. A plurality of each the first, second, and third grid sides are spaced apart at equal intervals in the respective first, second, or third direction to form respective first, second, and third grid side groups. A structure ratio of the advanced grid structure is larger than 0 and 0.107 or less, 0.053 or less, or 0.040 or less. A thermal expansion coefficient of the advanced grid structure is &#x2212;0.9 ppm/K or more and 0.9 ppm/K or less. The carbon fibers have a tensile modulus of elasticity of 280 GPa or more and 330 GPa or less.

Advanced grid structure

A display apparatus includes a display panel having a plurality of display pixels two-dimensionally arrayed display pixels having pixel drive circuits and light emitting devices near at intersections of a plurality of scan lines and a plurality of data lines laid out in a row direction and in a column direction so as to be orthogonal to each other, a scan driver which applies a scan signal to the scan lines at a predetermined timing, a data driver which supplies a gradation signal corresponding to display data to the display pixels via the data lines, and a pair of power source drivers which apply a supply voltage to both ends of a plurality of power supply lines laid out in the column direction at a predetermined timing.

Growing community of inventors

Fuchu, Japan

Tsuyoshi Ozaki