Sipix Imaging, Inc.

E Ink California, LLC

Jack Hou

Rong-Chang Liang

Yajuan Chen

Hongmei Zang

Jerry Chung

Scott C-j Tseng

Cheri Pereira

Xiaojia Wang

Yi-Shung Chaug

Wanheng Wang

Jing-Den Chen

Xin Weng

Chih-Yuan Liao

Zarng-Arh George Wu

Haiyan Gu

Jiunn Jye Hwang

Wei Hsin Yao

Fei C Wang

Kangtai Ren

Chia-Pu Chang

Shih-Wei Ho

Li-Yang Chu

Hui W Chen

Fei Wang

Gary Yih-Ming Kang

Jeanne E Haubrich

Huiyong Paul Chen

Wan Peter Hsu

Hong Mei Zang

Sundaravel P Ananthavel

Chenhang Sun

Mike Sereda

Quan Gu

The invention is directed to compositions and methods for improving the physicomechanical and electro-optical properties of an electrophoretic or liquid crystal display and also to semi-finished or finished display panels with improved physicomechanical properties. The invention is further directed to a display device comprising display cells filled with a display fluid and top-sealed with a top-sealing layer, wherein the top-sealing layer has a thickness of less than 10 microns measured at the center area.

Adhesive and sealing layers for electrophoretic displays

A system and method are disclosed for reducing reverse bias in an electrophoretic display. The system and method include the application of varying levels of voltages across an array of electrophoretic display cells of the electrophoretic display to move the cells towards a stable state in a driving cycle. In addition, the system and method disconnect the voltages from the electrophoretic display cells at a time duration prior to reaching step transitions of the voltages during the driving cycle. Pre-driving approaches apply a first pre-driving voltage at a first polarity to the display cells before driving the display cells with a second driving voltage at a second, opposite polarity. Varying the time duration and amplitude of the pre-driving signals produces further beneficial reduction in reverse bias.

Electrophoretic display driving approaches

The invention is directed to compositions of display cell structure and electrode protecting layers for improving the performance of display devices. The composition comprises a polar oligomeric or polymeric material having a glass transition temperature below about 100&#xb0; C., and the resulting display cells or electrode protecting layer have an average crosslinking density of below about 1 crosslink point per 80 Dalton molecular weight.

Display cell structure and electrode protecting layer compositions

This invention relates to improved electrophoretic dispersions and a method for improving the performance of an electrophoretic display. The invention also relates to a method of inducing or enhancing the threshold voltage of an electrophoretic dispersion.

Electrophoretic dispersions

The price tag system of the present invention has the advantages of reliability, easy to install and low cost. Using the system of the invention, the prices can be easily updated even from a remote location. In addition, if there is one defective panel, the defective panel can be easily removed and replaced without any changes made to the base structure, which also greatly reduces the operation costs.

Price tag system

The present invention relates to reflective displays and processes for their manufacture.

Reflective displays and processes for their manufacture

This invention relates to electrophoretic displays having improved performance. The invention also relates to a method for inducing or enhancing the threshold voltage of an electrophoretic display, which method comprises adding a threshold promoter into an electrophoretic fluid which comprises charged pigment particles or pigment-containing microparticles dispersed in a dielectric solvent or solvent mixture.

Method for inducing or enhancing the threshold voltage of an electrophoretic display

The present invention relates to novel patterned embossing and patterned filling methods. Both methods are simple, reliable and cost effective ways for manufacturing the segment of signage electrophoretic displays. The displays prepared by the present invention requires only one patterned electrode layer. The undesired visible line traces are eliminated and the manufacture of the present displays does not involve the costly precision registration step used in the previously known assembly processes dealing with two patterned electrodes. Moreover, the electrophoretic fluid is present only in the patterned and switchable area of the display. This not only significantly reduces the material cost, but also improves the overall display quality by reducing defects and non-uniformity.

Segment electrophoretic displays and methods for their manufacture

The invention is directed to a novel sealing composition and a method for improving performance of an electrophoretic display, especially at high temperatures. The invention is also directed to an electrophoretic display comprising display cells wherein said display cells are filled with an electrophoretic fluid and sealed with a sealing layer formed from a sealing composition comprising a thermoplastic elastomer and a crosslinking system.

Electrophoretic displays with improved high temperature performance

The invention is directed to compositions and methods for improving the physicomechanical and electro-optical properties of an electrophoretic or liquid crystal display and also to semi-finished or finished display panels with improved physicomechanical properties.

This invention relates to improved electrophoretic dispersions and a method for improving the performance of an electrophoretic display.

The invention is directed to methods and compositions for improving the adhesion properties and switching performance of an electrophoretic display. The methods and compositions comprise the use of a high dielectric polymer or oligomer and optionally a crosslinking agent.

The invention is directed to a method for improving the performance of electrophoretic displays by modifying the electrical properties of the display cells.

Modification of electrical properties of display cells for improving electrophoretic display performance

The present invention generally is directed to electrode designs suitable for roll-to-roll format flexible manufacturing of an EPD. It is also directed to an EPD having a segment design in a repeated pattern across an entire roll of the display. The EPD preferably is microcup-based. The EPD manufactured according to the present invention has the appearance of a roll of wall paper and it can be cut into any desired sizes or formats. The EPD has electrode or trace lines which may be exposed by asymmetrical cutting and stripping without the need of precision registration.

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Fremont, CA, United States of America

Jack Hou