Seiko Epson Corporation

Keitaro Fujimori

Takafumi Sano

Hiroyasu Honda

Yukinari Shibata

Mihiro Nonoyama

Hideki Ogawa

Yoshiro Iwasa

Yoshiteru Ono

A method for controlling an electro-optic device switches between a first driving scheme for changing an optical state between a-number of optical states and a second driving scheme for changing an optical state between b-number of optical states (b&#x3e;a). In the first driving scheme, an integrated value W (A&#x2192;B) of drive voltage and drive time when changing an optical state A to an optical state B, and an integrated value W (B&#x2192;A) of drive voltage and drive time when changing the pixel from the optical state B to the optical state A satisfy a relation of W (A&#x2192;B)=&#x2212;W (B&#x2192;A), and the integrated value W (A&#x2192;B) and W (B&#x2192;A) for the optical state A and B in the second driving scheme are equal to the integrated value W (A&#x2192;B) and W (B&#x2192;A) in the first driving scheme, respectively.

Method for controlling electro-optic device, device for controlling electro-optic device, electro-optic device, and electronic apparatus

A method for controlling an electro-optic device includes a third, a fourth, a first, and a second control steps of supplying a third, a fourth, a first, and a second voltage pulse, in this order. In the first control step, a first limit optical state is reached. In the second control step, a first intermediate optical state is reached. The period of each of the third control step and the fourth control step is set to satisfy a relation W (A&#x2192;B)=&#x2212;W (B&#x2192;A), where W (A&#x2192;B) is an integrated value of drive voltage and drive time when changing the pixel from an optical state A to an optical state B, and W (B&#x2192;A) is an integrated value of drive voltage and drive time when changing the pixel from the optical state B to the optical state A.

Provided is an electrooptical device, an electronic device, a control method for an electrooptical device, and the like that can easily realize various characteristics that are difficult to realize with related art. An electrooptical device uses electrophoretic particles migrating in a dispersion medium for image display. The electrooptical device includes a first electrode, a second electrode, first electrophoretic particles that are pigmented in a first color and charged in a first polarity, and second electrophoretic particles that are pigmented in the first color and charged in the first polarity. The first electrophoretic particles and the second electrophoretic particles are disposed between the first electrode and the second electrode. An absolute value of a charge quantity of the first electrophoretic particles is larger than an absolute value of a charge quantity of the second electrophoretic particles.

Electrooptical device, electronic device, and control method for electrooptical device

A flexible substrate including: a first part provided with a first device DV; a second part provided with a second device; a wiring part placed between the first part and the second part and including a plurality of wirings for coupling the first device and the second device; the first device including at least a first data transfer control unit, the second device including at least a second data transfer control unit, the first data transfer control unit and the second data transfer control unit transferring data by using a differential signal, and the plurality of wirings for coupling the first device and the second device including at least one differential signal line pair for transferring data by using a differential signal.

Growing community of inventors

Fujimi-machi, Japan

Keitaro Fujimori