Seiko Epson Corporation

Akira Nakajima

Katsunori Yamazaki

Yujiro Nomura

Kiyoshi Tsujino

Takao Miyazawa

Tadashi Shiozaki

Chitoshi Takayama

Kenichi Wakabayashi

Hajime Nishizawa

Kiyotaka Nishimura

Kaoru Hatakoshi

Tsuyoshi Morikawa

Yoshio Arai

Kunihiro Kawada

A liquid discharging apparatus includes a first substrate which includes a drive circuit which generates a drive signal and a first connector, a discharge head which includes greater than or equal to 300 nozzles per inch and a total of greater than or equal to 600 nozzles, which receives the drive signal and which discharges a liquid from the nozzles, and a second substrate which includes a second connector which is connected to the first connector, in which at least one of the first connector and the second connector includes a detection terminal for detecting a connection with the other of the first connector and the second connector.

Liquid discharging apparatus

There is provided a liquid discharging apparatus including a head unit that has a first driving element and discharges a first liquid based on a first drive signal for driving the first driving element and a first control signal for controlling application of the first drive signal to the first driving element and a circuit substrate. First drive signal transmitting wiring through which the first drive signal is transmitted. The shortest distance between a first side of the circuit substrate and the first drive signal transmitting wiring is shorter than the shortest distance between the first drive signal transmitting wiring and the first control signal transmitting wiring. The shortest distance between a second side opposing the first side of the circuit substrate and the first control signal transmitting wiring is shorter than the shortest distance between the first drive signal transmitting wiring and the first control signal transmitting wiring.

Liquid discharging apparatus and circuit substrate

A display device includes an illumination unit that delivers a first light, a second light and a third light. The display also includes a driving circuit that supplies a pixel with a first data signal for displaying a first image by illuminating the first light, the driving circuit supplying the pixel with a second data signal for displaying a second image by illuminating the second light, the driving circuit supplying the pixel with a third data signal for displaying a third image by illuminating the third light.

Display device, method for driving display device, and electronic apparatus

A line head, includes a light-emitting element row, having a plurality of light-emitting elements arranged in a first direction; a plurality of feeding portions; a first power supply line for power supply, connected to a first feeding portion for a power supply of the feeding portions; and a second power supply line for ground, connected to a second feeding portion for a ground of the feeding portions. The light-emitting elements are respectively connected between the first power supply line and the second power supply line.

Line head and image forming device using the same

A light emitting device includes: a plurality of light emitting elements that emit light to have luminosity depending on the magnitude of a driving signal; a plurality of holding units that are respectively disposed in the plurality of light emitting elements, and respectively hold the driving signal to maintain a magnitude regulated such that the luminosity of the plurality of light emitting elements becomes uniform; and a plurality of supply units that are respectively disposed in the plurality of light emitting elements, and supply the driving signal, which is held by the holding units to have a certain magnitude for a period of time according to a gradation of light to be emitted, to a corresponding light emitting element.

Light emitting device, driving method thereof, and image forming apparatus

An organic electroluminescent device includes a first member: a light-emitting element that is formed on the first member; a second member that has a second region bonded to the first region of the first member, and forms a sealing space for sealing the light-emitting element between the first member and the second member. Each of the first and second regions has a flat surface that is provided so as to connect an end portion located at the side of the sealing space to an end portion located at the side of an external space outside of the sealing space, and a wall surface that is provided near the flat surface, and the wall surface has a first surface that is provided so as to be parallel to a first direction, and a second surface that is provided so as to be parallel to a second direction different from the first direction.

Organic electroluminescent device, method of manufacturing organic electroluminescent device, and electronic apparatus

A light source device includes a light-emitting unit having a plurality of light-emitting elements, a first optical unit that substantially collimates beams emitted from the light-emitting elements in a first direction, and a second optical unit that condenses the emitted beams substantially collimated by the first optical unit in a second direction intersecting the first direction.

Light source device, method of manufacturing light source device, and line head module

To provide an electro-optical device, such as a display or a printer head having a self-luminous element, in which a light-emitting state of a light-emitting element is detected. The electro-optical device comprises a plurality of pixel units arranged in a display region on a substrate in a predetermined pattern, each including a light-emitting element; a plate-like member disposed to overlap the display region and formed of a transparent medium for transmitting light emitted from the plurality of pixel units and internally reflecting a portion of the transmitted light; and light detection means for detecting light that is internally reflected and reaches at least one side of the display region through the inside of the plate-like member.

Device for and method of driving an electro-optical device

An electronic device includes: a circuit board, at least part of the circuit board being formed of two or more types of semiconductor chips having different functions, arranged so as not to overlap, and fixed to each other; and a plurality of operating elements formed over the circuit board.

Electronic device, method of manufacturing the same, and electronic instrument

The image processing performance of a present day or existing page printer, e.g., electrophotographic printer, is improved and accelerated with the use of a detachable intelligent cartridge which contains a CPU and necessary memory to process print data into image dated for the electronic control unit of the printer to which the cartridge is attached. Depending, upon the page description language (PDL) to be employed, a cartridge can be selected for use with the printer and accelerate its PDL conversion and printing output. The intelligent cartridge CPU, which is different from the printer CPU, receives print data are from the printer and, since the data bus connecting the intelligent cartridge and the electronic control unit of the printer has only a read only capability from the electronic control unit, data transfer to the cartridge is made possible by utilizing the print data as an index for the read address accomplished by the printer CPU. The bit image data is accomplished by the cartridge CPU from print data received via the printer CPU and after data development, the bit image data is transferred to the printer for hardcopy printout.

Intelligent cartridge for attachment to a printer to perform image

The image processing performance of a present day or existing page printer, e.g., electrophotographic printer, is improved and accelerated with the use of a detachable intelligent cartridge which contains a CPU and necessary memory to process print data into image dated for the electronic control unit of the printer to which the cartridge is attached. Depending upon the page description language (PDL) to be employed, a cartridge can be selected for use with the printer and accelerate its PDL conversion and printing output. The intelligent cartridge CPU, which is different from the printer CPU, receives print data from the printer and, since the data bus connecting the intelligent cartridge and the electronic control unit of the printer has only a read only capability from the electronic control unit, data transfer to the cartridge is made possible by utilizing the print data as an index for the read address accomplished by the printer CPU. The bit image data is accomplished by the cartridge CPU from print data received via the printer CPU and after data development, the bit image data is transferred to the printer for hardcopy printout.

Growing community of inventors

Matsumoto, Japan

Akira Nakajima