Seiko Epson Corporation

Tsunemori Asahi

Junichi Nakamura

Takashi Nitta

Shoichi Uchiyama

Yoshitaka Itoh

Kazuaki Uchida

Masaki Gomi

Akio Murata

Hirokazu Sekino

Shohei Yoshida

Akinari Todoroki

Noboru Ninomiya

A fluid ejection device includes: a fluid ejection unit that ejects a fluid in a pulsed manner; a fluid accommodation portion that accommodates the fluid at a predetermined pressure or higher; a fluid supply unit that supplies the fluid accommodated in the fluid accommodation portion to the fluid ejection unit; a connection channel that connects the fluid ejection unit and the fluid accommodation portion, and acts as a channel through which the fluid flows; an opening and closing unit that opens and closes the connection channel; and a control unit that sends an open signal for opening the connection channel to the opening and closing unit, and sends an ejection signal for ejecting the fluid to the fluid ejection unit. The control unit sends the ejection signal after a predetermined amount of time has elapsed from the sending of the open signal.

Fluid ejection device

A fluid ejection device includes a fluid ejection unit that ejects a fluid, an ejection control unit that receives a fluid ejection command input, and controls the ejection of the fluid from the fluid ejection unit, a fluid container that accommodates the fluid to be supplied to the fluid ejection unit; and a supply control unit that controls the supply of the fluid from the fluid container to the fluid ejection unit, and determines whether the fluid can be supplied to the fluid ejection unit from the fluid container. When the supply control unit determines that the fluid cannot be supplied even after the ejection command input is received, and then a predetermined amount of time has elapsed, the ejection control unit reports a fault, and prohibits the fluid ejection unit from ejecting the fluid until the ejection command input is canceled.

A liquid injection device includes an injection unit which injects a liquid, a liquid supply instrument which supplies the liquid to the injection unit, and a control unit which controls operation of the injection unit and the liquid supply instrument, wherein the injection unit includes a distal end portion where a nozzle for injecting the liquid is formed, and a body portion in which the distal end portion is removably loaded, at the distal end portion, a distal end-side memory is provided in which first startup data is written, and the control unit is a control unit which reads and writes the first startup data from and to the distal end-side memory in the distal end portion loaded in the body portion and manages use time of the distal end portion based on the first startup data that is read out.

Liquid injection device and medical apparatus

A fluid ejection device includes a fluid ejection unit that ejects a fluid and an ejection control unit that controls ejection of the fluid. A fluid container accommodates the fluid supplied to the fluid ejection unit. A pressure adjustment unit adjusts an inner pressure of the fluid container such that the inner pressure gets closer to a target pressure than a first threshold value. The ejection control unit has first and second ejection modes. In the first ejection mode, when the inner pressure is closer to the target pressure than a second threshold value separated from the target pressure farther than the first threshold value, the ejection control unit receives a demand for ejection of fluid. In the second ejection mode, even when the inner pressure is not closer to the target pressure than the second threshold value, the ejection control unit receives a demand for ejection of fluid.

An address generator that generates, in an image capturing device including a photoelectric conversion unit having arrayed therein in a matrix plural photoelectric conversion elements that convert received light into charges and accumulate the charges and a rolling shutter function, an address indicating a line position of each of the photoelectric conversion elements that are processing objects of readout processing and reset processing for accumulated charges includes address counters provided at least in a number same as a number of time divisions of the readout processing and the reset processing, a control unit that independently controls an operation of each of the address counters, a selecting circuit that sequentially selects each of the address counters in a time division manner and outputs a count value of the selected address counter to an address decode circuit as the address, and the address decode circuit that outputs a signal for changing the photoelectric conversion element in a line position corresponding to the address inputted from the selection circuit in a time division manner to an active state.

Address generator and image capturing device

An imaging clement that performs a processing with respect to a predetermined line of a plurality of photoelectric conversion elements in plural times in a time dividing manner in each horizontal scanning period, includes a photoelectric conversion unit; an address generating unit that generates an address indicating a position of the line of an object for each of a plurality of divided periods formed by time-dividing the each horizontal scanning period; an address decoding unit activating the photoelectric conversion elements on a line position corresponding to the address; a period determination signal generating unit that generates a period determination signal indicating one of validity and invalidity of the processing with respect to each of the divided periods; a control signal generating unit that generates a control signal for performing the processing in each of the plurality of divided periods; a processing performing unit performing the processing with respect to the line of the photoelectric conversion elements; and a supply control unit allowing the control signal to be supplied to the processing performing unit when a corresponding divided period is valid, and preventing the control signal from being supplied to the processing performing unit when the divided period is invalid.

Imaging element suitable for readout charges in plural times in a time dividing manner in one horizontal scanning period

There is provided an image display device with a two-modulation optical system for displaying an image corresponding to input image signals. The image display device includes a first optical modulation element for turning on or off pixels every subfield in the unit of plane; and second optical modulation elements for displaying gradation of the pixels in the unit of line, the first optical modulation element and the second optical modulation element are arranged optically in series; a second optical modulation element drive unit for driving the second optical modulation elements in a line-sequential manner; and a first optical modulation element drive unit for generating a control signal for controlling the pixels in lines disposed to correspond to the unit of single or several lines of the line-sequential driving of the second modulation elements with a driving interval in the unit of single or several lines and controlling the first optical modulation element in synchronism with the unit of single or several lines.

Image display device and projector

An image display device includes a first optical modulator that modulates a plurality of color lights coming from a light source, a color combination member that combines the color lights, a second optical modulator that modulates a light provided by the color combination member as a result of the color light combination, and a relay optical system that is disposed between the color combination member and the second optical modulator. The replay optical system guides the light provided by the color combination member to the second optical modulator. A light transmissive member is disposed between the relay optical system and the second optical modulator, and allows optical path conditions from the first optical modulator to the relay optical system via the color combination member to be substantially the same as optical path conditions from the relay optical system to the second optical modulator.

A display control apparatus that controls first and second modulation sections optically connected in series includes a storage unit and a control unit. The storage unit stores information to specify a defective pixel of the first modulation section. The control unit controls the second modulation section in response to a defect of the defective pixel being stored in the storage unit.

Display control apparatus and method

A projector includes: a first light modulation device that modulates illumination light; a second light modulation device that further modulates the illumination light modulated by the first light modulation device; a projection unit that projects the modulated illumination light toward a screen; and an optical device moving unit that moves an optical device blocking at least part of the illumination light relatively to a light path of the illumination light to move the device off the light path in response to an external request.

Projector

In a projection-type display device, a display control devicethat controls a first DMDand a second DMDis composed by comprising an interface circuit, a mirror device drive circuitfor controlling the driving of the micromirrors of second DMD, a mirror device drive circuitfor controlling the driving of the micromirrors of second DMD, a CPUthat controls computations and the entire system based on a control program, a ROMthat contains the control program of CPUand so forth in a predefined area, and a RAMfor containing data read from ROMand so forth and computation results required for the computation process of CPU

Gradation control device, optical display device, gradation control program, optical display device control program, method of controlling gradation and method of controlling optical display device

Exemplary embodiments of the present invention provide a light propagation characteristic control apparatus which extends the light-intensity dynamic range and the number of levels, and are suited for enhancing image quality and reducing the size and generation time of tables. Exemplary embodiments provide a projection display apparatus that tentatively decides a transmissivity Tof each pixel of a color-modulation light valve depending upon HDR display data, and decides a transmissivity Tof each pixel of an intensity-modulation light valve depending upon a tentatively decided transmissivity Tand the HDR display data, and a control value of each pixel of the intensity-modulation light valve depending upon a decided transmissivity T. Depending upon a decided transmissivity Tand the HDR display data, transmissivity Tis decided of each pixel of the color-modulation light valve. Depending upon a decided transmissivity T, a control value is decided of each pixel of the color-modulation light valve.

Light propagation characteristic control apparatus, optical display apparatus, light propagation characteristic control program, optical display apparatus control program, light propagation characteristic control method and optical display apparatus control method

An image display device that displays an image by modulating a light from a light source according to display image data, includes: a first light modulation element that modulates a light emitted from the light source; and a second light modulation element that is disposed on an optical path in series with the first light modulation element and modulates a light exiting from the first light modulation element, wherein the first light modulation element and the second light modulation element are disposed in such a manner that a bright-field direction of an optical image of the first light modulation element and a bright-field direction of the second light modulation element almost coincide with each other.

An image processing apparatus for controlling a display apparatus including a luminance modulation element and a color modulation element that are configured using different modulation elements, includes: a control value determination unit that determines, based on an input target color value, using a plurality of color conversion matrixes that describe a relationship between the target color value and a control value for the color modulation element for each control value for the luminance modulation element, the control value for the color modulation element; and a correction unit that non-linearly corrects the control value for the color modulation element according to a characteristic of the color modulation element.

Image processing apparatus and image processing method

Exemplary embodiments of the invention provide an optical display device that modulates light from a light source in two stages through an optical modulator and a luminance adjusting element to expand the luminance dynamic range and the number of the gradation levels of a display image, that allows the picture quality to be enhanced, and that is suitably applied to display an image according to the resolution of the luminance adjusting element having a higher resolution than the optical modulator. Exemplary embodiments provide a projection type display device that converts RGB pixel values in HDR display data into YCbCr pixel values, selects the maximum Yfrom corresponding YCbCr values on a pixel-basis in a color modulation light valve, and calculates average values Cband Cr. The device converts YCbCr pixel values consisting of these values into RGB pixel values, determines the transmittance Tof each of the pixels in the color modulation light valve using the RGB value, then determines the transmittance Tof each of the pixels in the luminance modulation light valve based on the transmittance T, and determines control values for the light valves based on the values Tand T

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Azumino, Japan

Tsunemori Asahi