Seiko Epson Corporation

Nippon Shokubai Co., Ltd.

E Ink Corporation

Hideyuki Kawai

Atsushi Miyazaki

Mitsutoshi Miyasaka

Makoto Matsumoto

Mitsuo Kushino

Tatsuya Shimoda

Sadao Kanbe

Masaya Ishida

Andrea Kurrer, Legal Representative

Satoshi Inoue

Hirokazu Yamamoto

Kazuhiro Anan

An electrophoresis device includes a translucent first substrate having a first electrode on one surface thereof; a second substrate having a second electrode on one surface thereof, and disposed to face the first substrate such that a protruding portion which does not overlap the first substrate in a substrate thickness direction is ensured at one side of the second substrate; a wiring pattern electrically connected to the second electrode via a connector passing through the second substrate, and provided on the other surface of the second substrate such that it extends to the protruding portion of the second substrate; an electrophoretic layer interposed between the first electrode and the second electrode; a translucent first moistureproof film having a portion contacting the other surface of the first substrate and a surplus portion disposed around the portion; and a second moistureproof film having a portion contacting the other surface of the second substrate and a surplus portion disposed around the portion and provided such that at least a portion of the protruding portion of the second substrate is exposed. Electrical connection between the wiring pattern and an external device is established at a place where the protruding portion of the second substrate is exposed.

Electrophoresis device and electronic apparatus

An electrophoretic display device includes M&#xd7;N numbers (M, and N are integers more than two) of pixels. The M&#xd7;N numbers of pixels include M numbers of pixel groups having N numbers of pixels. Further, an image on the electrophoretic display device is displayed by making some of the M&#xd7;N numbers of pixels switched at least from a bright display to a dark display, and vice versa. A period for displaying one piece of an image on the electrophoretic display is defined as period for forming an image and a period for introducing an image signal to each of the M&#xd7;N numbers of pixels with sequentially selecting each of the pixels is defined as a frame period. Then, the time for forming an image includes a plurality of frame periods (a numbers of L: L is integers more than two.)

Method of driving an electrophoretic display

A driving method for driving an electrophoretic device that includes a display region including a plurality of electrophoretic elements each including a dispersed system that includes electrophoretic particles and that is disposed between a common electrode and a pixel electrode, a driver that drives the electrophoretic elements by applying voltages to the electrophoretic elements, and a controller that controls the driver, wherein two or more units of display rewritten at different rewrite intervals are provided in the display region includes controlling, by the controller, the driver to apply a higher voltage to an electrophoretic element included in a unit of display having a longer rewrite interval when an image is rewritten.

Electrophoretic device driving method, electrophoretic device, electronic apparatus, and electronic watch

A display apparatus includes a plurality of first electrodes, a second electrode facing the plurality of first electrodes, and a plurality of microcapsules. Each of the plurality of first electrodes corresponds to one of a color. The plurality of microcapsules have a dispersion media and a plurality of particles sealed therein and are disposed between the plurality of first electrodes and the second electrode. A microcapsule of the plurality of microcapsules providing one of the colors is arranged on the first electrode that corresponds to the one of the colors.

Display panel with plurality of microcapsules

An electrophoresis device includes a first substrate having a plurality of pixel electrodes formed on a surface thereof, a second substrate having a common electrode formed on a surface thereof and disposed to face the pixel electrodes, and an electrophoretic layer disposed between the pixel electrodes and the common electrode. The electrophoresis device makes electrophoretic particles migrate by keeping the potential of each pixel electrode constant and changing a voltage to be applied to the common electrode. The device also includes a voltage control means which supplies a voltage whose minimum voltage is not less than Vand whose maximum voltage are not more than Vto the common electrode, in a case where a potential which appears in each pixel electrode when a minimum voltage Vis supplied to a voltage supply means to each pixel electrode is set to Vand a potential which appears in each pixel electrode when a maximum voltage Vis supplied to the voltage supply means is set to V

Electrophoresis device, electronic apparatus, and driving method of electrophoresis device

An IC card includes a capacitance type fingerprint sensor, a display device, and a control unit. The display device displays an encrypted image that is readable by an external device. The control unit controls the capacitance type fingerprint sensor and the display device. The control unit erases the encrypted image that is displayed by the display device.

Integrated circuit card

The present invention provides: a microcapsule composition for electrophoretic displays; a production process for the microcapsule composition for the electrophoretic displays; a production process for a sheet for the electrophoretic displays; and a handling method for microcapsules for the electrophoretic displays; wherein the microcapsule composition contains microcapsules and, when used for the electrophoretic displays, can make them as excellent as conventional in various performances (e.g. longtime stability of displaying, respondability of displaying, contrast, and number of times of display rewritability) and, particularly above all, can make the electrophoretic displays exhibit a very high performance as to the contrast. The present invention composition is a composition used for preparation of a coating liquid and comprises an aqueous medium and microcapsules for the electrophoretic displays, wherein the microcapsules include a shell and a dispersion that is capsuled in the shell, wherein the dispersion includes a solvent and electrophoretic fine particles that are dispersed in the solvent; with the composition being characterized by: being a product as obtained without involving the step of drying the microcapsules; and having a microcapsule content of 30 to 80 weight %.

Microcapsule composition for electrophoretic displays

An electrophoretic display device includes M&#xd7;N numbers (M, and N are integers more than two) of pixels. The M&#xd7;N numbers of pixels include M numbers of pixel groups having N numbers of pixels. Further, an image on the electrophoretic display device is displayed by making some of the M&#xd7;N numbers of pixels switched at least from a bright display to a dark display, and vice versa. A period for displaying one piece of an image on the electrophoretic display is defined as period for forming an image and a period for introducing an image signal to each of the M&#xd7;N numbers of pixels with sequentially selecting each of the pixels is defined as a frame period. Then, the time for forming an image includes a plurality of frame periods (a numbers of L: L is integers more than two).

The invention provides an electrophoresis display device that includes: a pair of a first substrate and a second substrate that are provided opposite to each other; an electrophoresis material layer that is sandwiched between the first substrate and the second substrate; a plurality of pixel areas that is formed on the first substrate and the second substrate; a plurality of optical detection elements which is formed either in the pixel areas or adjacent to the pixel areas; and a plurality of optical transmission paths each of which is formed between the first substrate and the second substrate and propagates incident light that enters through an outer surface of the second substrate so that the light reaches the corresponding optical detection element.

Electrophoresis display device and electronic apparatus

The electrophoretic device of the present invention obtains a plurality of different optical characteristics by changing a proportion of number of pixel electrodes supplied with a first voltage and a number of pixel electrodes supplied with a second voltage. The transition of the optical characteristics accompanied by the changes of the proportion is previously obtained as an actual measurement value. The preferable proportion displaying the desired optical characteristic is calculated based on the actual measurement value.

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

The present invention is a method in which microcapsules are placed at desired locations selectively accurately and easily to produce a high accuracy electrophoretic display panel. In the production method of a display panel of the present invention, the microcapsules are uniformly coated onto a substrate, on which electrodes is formed by using an optical hardening resin as a binder material. Next, the binder material is hardened by selectively irradiating a light beam to the only locations desired for placing the microcapsules by using a photomask. The binder material of portions not hardened is removed by washing in water. Thus, the microcapsules can be selectively and accurately placed at the only desired positions. A color electrophoretic display panel, in which each microcapsule of three primary colors is placed in a predetermined arrangement, can be produced by sequentially performing the processes for the three types of microcapsules corresponding to three primary colors.

Method of producing display panel and display panel

An electrophoresis device includes a pair of substrates, a plurality of pixel electrodes, and a common electrode formed on the pair of substrates, a liquid material formed by dispersing charged particles sealed between the pair of substrates and a driving circuit for applying a voltage to the pixel electrodes and the common electrode to generate an electric field therebetween. When display image is changed, the driving circuit generates a first electric field between all the pixel electrodes and the common electrode to delete the image displayed by that time over the entire display region. Then, when new display image is written, the driving circuit generates a second electric field between the pixel electrodes corresponding to display and the common electrode, and generates a third electric field between the common electrode and the pixel electrodes not corresponding to display.

Electrophoresis device, method of driving electrophoresis device, and electronic apparatus

An electro-optical panel includes a first substrate, a second substrate facing the first substrate, a common electrode disposed on the first substrate, a plurality of pixel electrodes disposed on the second substrate, and a liquid dispersion medium which is sealed between a pair of substrates including the first substrate and the second substrate and into which charged particles are dispersed, in which the charged particles include first particles having a first color and second particles having a second color and having been charged to have a polarity different from a polarity of the first particles, the liquid dispersion medium has a third color, each of the plurality of pixel electrodes includes a plurality of sub-electrodes, and a voltage applying unit is provided so as to individually apply a voltage to the plurality of sub-electrodes.

Growing community of inventors

Fujimi-machi, Japan

Hideyuki Kawai