Casio Computer Co., Ltd.

Toppan Printing Co., Ltd.

Tomoyuki Shirasaki

Jun Ogura

Manabu Takei

Tsuyoshi Ozaki

Hiroyasu Yamada

Satoru Shimoda

Minoru Kumagai

Masaharu Shioya

Yasuhiro Daiku

Katsuhiko Morosawa

Ikuhiro Yamaguchi

Kazuhito Sato

Tadahisa Tohyama

Yoshihiro Kawamura

Tetsushi Yoshida

Hiroyasu Jobetto

Akihito Kagotani

Seizo Miyata

Kenji Kobayashi

Soko Koda

Susumu Maniwa

Osamu Kuwabara

Isao Ebisawa

Tetsuo Muto

Yoshiyuki Matsuoka

Norihiko Kaneko

Reiji Hattori

Tsuyoshi Toyoshima

Morio Morishige

Tetsuya Kusuno

Hiroshi Kurosawa

Kazunori Morimoto

Yukikazu Tanaka

Jun Onohara

Tomomi Sawano

Noriko Kanou

Tomoko Tano

Hironori Nomura

Noriko Harashima

A hologram that includes a formation layer and a reflection layer that are laminated. The formation layer has an optical phase modulation structure on a first interface in contact with the reflection layer. When reference light emitted from a point light source enters through a second interface different from the first interface of the formation layer, the entirety or part of an image to be reconstructed by the optical phase modulation structure is reconstructed as spatial information on the point light source side relative to the second interface.

Hologram, detection device, and method for verifying authenticity of hologram

A circuit board has a glass core in which a through hole is formed, and a conductor pattern is formed on an inner peripheral wall of the through hole and a surface of the glass core to form a circuit element including a solenoid coil element and a capacitor element. Accordingly, a low-cost and compact circuit board capable of supporting high-capacity communication for thin mobile communication devices such as smartphones can be provided. Since the circuit board can be electrically connected to at least one of the electronic components such as a switch, an amplifier, and a filter via one terminal, and can be electrically connected to a mother board via another terminal, it has integrated functions, and can be suitably used for thin mobile communication devices such as smartphones.

Circuit board

A display pixel including a light-emitting element and a drive element for supplying current flowing in a current path to the light-emitting element is applied with a detection voltage based on a predetermined unit voltage. Based on a value of current flowing in the current path of the drive element, a specific value corresponding to an element characteristic of the drive element is detected. A gradation voltage corresponding to a luminance gradation of display data is generated. Based on the specific value and the unit voltage, a compensated voltage is generated. By compensating the gradation voltage based on the compensated voltage, a compensated gradation voltage is generated. And the compensated gradation voltage is supplied to the display pixel.

Display drive apparatus and display apparatus

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 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

An emission apparatus includes an emission element, a pixel drive circuit connected to the emission element, a data line connected to the pixel drive circuit, and an emission drive apparatus that, in a selection period, lets a reference current with a predetermined current value flow to the pixel drive circuit via the data line, derives a compensation voltage which is a difference between a potential which varies according to a unique characteristic of the pixel drive circuit and a predetermined reference potential, and generates a correction gradation voltage to be applied to the pixel drive circuit based on the compensation voltage for causing the emission element to emit light at an appropriate luminance gradation.

Emission apparatus and drive method therefor

A display drive apparatus for driving a display pixel including a light-emitting element and a drive element in which one end of a current path is connected to the light-emitting element. The display drive apparatus has a specific value detection section detecting a difference value between a measured voltage detected at one end of a data line when a reference current is applied via the data line and a standard voltage corresponding to the reference current so as to obtain a specific value corresponding to variation of an element characteristic of the drive element, and a gradation signal correction section generating a corrected gradation signal by correcting a gradation signal according to display data based on the specific value so as to apply the corrected gradation signal from the one end of the data line to the display pixel.

Display drive apparatus, display apparatus and drive control method thereof

A display device comprising: a light-emitting element formed on a substrate; a driver element formed on the substrate, that controls a current flowing in the light-emitting element; a switching element that switches the driver element; and a light-blocking film formed so as to correspond to only the switching element.

Display device

A display drive apparatus includes a selection circuit which sets display pixels in a plurality of specific rows of the display panel in a selected state with periods at least overlapping each other. A gradation signal generation circuit generates a gradation signal which controls a luminance gradation of each display pixel based on the display data and sequentially supplies the generated gradation signal in time series. A plurality of signal distribution circuits sequentially distribute the gradation signal supplied by the gradation signal generation circuit in accordance with the plurality of display pixels in each column at the timing of time-series supply. A plurality of current holding circuits individually hold the distributed gradation signal and simultaneously supply as the gradation current a current having a current value based on the held gradation signal to the display pixels in the plurality of specific rows.

Display drive apparatus in which display pixels in a plurality of specific rows are set in a selected state with periods at least overlapping each other, and gradation current is supplied to the display pixels during the selected state, and display apparatus

A display apparatus includes: a light-emitting device; a pixel circuit which is connected to the light-emitting device; a display driver having a voltage adjustment section which adjusts the potential of an adjustment voltage such that the potential thereof is approximated to a potential which is changed in accordance with the change amount of the characteristics inherent to the pixel circuit when a reference current having a predetermined current value is supplied to the pixel circuit; and a data line which connects the display driver and pixel circuit.

Display apparatus and method for driving the same, and display driver and method for driving the same

There is provided a display drive apparatus for operating, in accordance with display data, a current control type optical elements each having a display pixel provided with the optical element and a drive element which supplies a driving current to the optical element. The display drive apparatus includes a gradation signal creating circuit which generates a gradation signal corresponding to a luminance gradation of the display data and supplies the gradation signal to the display pixel, a threshold voltage detection circuit which detects a threshold voltage peculiar to the drive element of the display pixel, and a compensation voltage application circuit which generates a compensation voltage for compensating for the threshold voltage of the drive element on the basis of the threshold voltage and applies the compensation voltage to the drive element.

A display device which displays image information based on display data comprising 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 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 generates gradation current based on the display data luminosity gradation component and supplies to the display pixels set in the selective state; a precharge circuit 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 controls setting of the light emitting devices in a non-light emitting state when the capacity component is set in a predetermined charged state.

A partitioning wall is formed on one surface of a substrate. The partitioning wall has a lattice-like shape and defines a plurality of surrounded-regions. Each of the surrounded-regions is surrounded by the partitioning wall and includes a plurality of pixel-regions on which pixels are to be formed. A first predetermined region of the substrate adjacent to a part of the partitioning wall is maintained at a higher temperature, and a second predetermined region other than the first predetermined region is maintained at a lower temperature. Liquid which contains a carrier transporting material is coated on the pixel-regions in the surrounded-regions while maintaining the temperatures of the substrate.

Display device and manufacturing method thereof

Growing community of inventors

Higashiyamato, Japan

Tomoyuki Shirasaki