Seiko Epson Corporation

Tsutomu Miyamoto

Takeo Kawase

Hideki Tanaka

Hitoshi Yamamoto

Ichio Yudasaka

Masahiro Furusawa

Soichi Moriya

Yuji Fujimori

Takehisa Saeki

Toshiyuki Kamiya

Tatsuya Shimoda

Hitotoshi Kimura

Tsuyoshi Kitahara

Tomoaki Takahashi

Hidenori Usuda

Noriaki Okazawa

Ryoichi Tanaka

Noboru Tamura

Kenji Otokita

Kiyoshi Nakamura

Kaoru Momose

Hideo Shimamura

Nobuaki Okazawa

A robot includes a robot main body having a platform and a robot arm displaced with respect to the platform, a vibration sensor provided to the robot main body to detect a vibration of the robot main body, a collision detection section configured to detect a collision between the robot main body and a physical object based on an output from the vibration sensor, wherein the collision detection section includes a first detection section configured to detect the collision based on a vibration signal output from the vibration sensor, and a second detection section configured to detect the collision based on an extracted vibration signal obtained by extracting a vibration component with a frequency not lower than a first predetermined value from the vibration signal.

Robot, control device and control method

A force detection system includes a force detection unit that outputs a signal corresponding to an external force, a first output unit that outputs first data based on a signal output from the force detection unit, and a second output unit that outputs second data based on the signal output from the force detection unit in a system different from the first output unit. The first data and the second data are different.

Force detection system and robot

A control circuit of a piezoelectric driving device includes: a signal generation unit that inputs a state inspection signal to a plurality of piezoelectric elements connected to each other in parallel; and a state detection unit that detects a state of the plurality of piezoelectric elements based on a state detection signal generated from the plurality of piezoelectric elements in accordance with the state inspection signal.

Control circuit of piezoelectric driving device, piezoelectric driving device, ultrasonic motor, robot, hand, and pump

A piezoelectric motor includes a rotating body, a piezoelectric actuator including a protruding section having contact with the rotating body, and adapted to rotate the rotating body due to a motion of the protruding section when driving a piezoelectric element, and a drive circuit adapted to drive the piezoelectric element, and the drive circuit includes a drive signal generation section adapted to output a drive signal with a predetermined frequency, and an LC filter adapted to block a frequency higher than the predetermined frequency, and applies the drive signal to the piezoelectric element via the LC filter.

Piezoelectric motor, drive circuit, and drive method

A photoelectric conversion device includes a plurality of photoelectric conversion regions disposed over a substrate, and a colored region disposed among the photoelectric conversion regions over the substrate, the colored region forming an image over the substrate.

Method of manufacturing photoelectric conversion device, and method of manufacturing image display

An electrophoretic display device includes a common electrode, pixel electrodes, and a disperse system of electrophoretic particles. A transistor supplies one of the pixel electrodes with a first potential or a second potential higher than the first potential. During a first period, a control portion supplies a third potential to the gate electrode to turn on the transistor, supplies the first potential to a signal line or the common electrode, and supplies the second potential to the other line. During a second period, the control portion supplies a fourth potential higher than the third potential to the gate electrode to turn off the transistor, and supplies the first potential to both the signal line and the common electrode so that the pixel electrode potential substantially reaches the common electrode potential. The third potential is lower than the second potential and the fourth potential is higher than the first potential.

Electrophoretic display device, electronic apparatus, and method of driving electrophoretic display device

Photoelectric conversion device, image display, method of manufacturing photoelectric conversion device, and method of manufacturing image display

There is provided a method for operating an electrophoretic display apparatus including a first substrate; a second substrate; an electrophoretic device being held between the first substrate and the second substrate and containing electrophoretic particles; a first electrode formed on a surface of the first substrate, the surface facing the electrophoretic device; an insulation layer formed between the first electrode and the electrophoretic device; and a second electrode formed on a surface of the second substrate, the surface facing the electrophoretic device. The method includes: (a) driving the electrophoretic device by inputting a first potential to the first electrode and inputting a second potential to the second electrode, and (b) recovering a potential of the second electrode by changing the potential of the second electrode, from the second potential to the first potential, at a constant rate such that a voltage applied to the electrophoretic device is made equal to or smaller than a threshold voltage of the electrophoretic device, wherein (b) is performed after (a) and before next (a).

Method for operating electrophoretic display apparatus, electrophoretic display apparatus, and electronic system

A method for operating an electrophoretic display apparatus including a first substrate; a second substrate; an electrophoretic device being held between the first substrate and the second substrate and containing electrophoretic particles; a first electrode formed on a surface of the first substrate, the surface facing the electrophoretic device; and a second electrode formed on a surface of the second substrate, the surface facing the electrophoretic device is provided. The method includes image displaying in which a voltage is applied to the electrophoretic device. The image displaying includes device driving in which the electrophoretic device is driven by inputting a first potential into the first electrode and inputting a second potential into the second electrode, and accumulated-charge removing in which a potential of the first electrode is changed, from the first potential to the second potential, stepwise or uniformly at a potential change velocity lower than a potential change velocity upon starting of the device driving.

A display device includes a pixel electrode and a counter electrode facing each other, a plurality of charged particles disposed between the pixel electrode and the counter electrode, an organic transistor electrically connected to the pixel electrode, a data line electrically connected to the pixel electrode via the organic transistor, a data line driving circuit supplying an image signal to the data line, and a counter electrode driving circuit supplying a counter electrode driving signal containing a pulse signal having the same polarity as the image signal to the counter electrode.

Electrophoretic display device employing organic thin film transistors, driving method for driving circuits of the electrophoretic display device, and electronic apparatus including the electrophoretic display device

In at least one embodiment of the disclosure, a display device includes a first substrate and a second substrate. A layer is located between the first substrate and the second substrate. The layer includes a first region and a second region. The first region comprises an electrophoretic display layer having electrophoretic particles. The second region is located between the first region and an edge of the first substrate and includes a contact portion. The distance between the first substrate and the second substrate corresponding to the second region is smaller than the distance between the first substrate and the second substrate corresponding to the first region.

Electrophoretic display device

A method for producing an active-matrix substrate including a board, pixels, thin-film transistors that switch the pixels, and source lines and gate lines electrically connected to the thin-film transistors includes forming a conduction portion that provides electrical connection between the source lines and the gate lines using an organic conductive material at the same time as forming either the source lines or the gate lines; and breaking the electrical connection provided by the conduction portion.

Active-matrix substrate and method for producing the same, electrooptical device and method for producing the same, and electronic apparatus

In at least one embodiment of the disclosure, a driving substrate includes a substrate having a first portion and a second portion formed surrounding the first portion. A flexible printed circuit is formed on the second portion. The flexible printed circuit includes a protruding portion extending to the first portion.

Electrophoretic display sheet, electrophoretic display device, and electronic apparatus

In at least one embodiment of the disclosure, an electrophoretic display sheet includes an electrophoretic display layer and a substrate provided with the electrophoretic display layer. An end portion of the substrate includes a chamfered edge. The electrophoretic sheet may be attached to a driving substrate.

Growing community of inventors

Shiojiri, Japan

Tsutomu Miyamoto