Bridgestone Develops Electronic Paper Display

June 2, 2006

Bridgestone Corporation, the world's largest manufacturer of tires and other rubber products, has succeeded in the development of the "world's largest-class, thinnest and flexible color display" as reflective electronic paper using a simple matrix drive.

In March 2002, Bridgestone developed Electronic Liquid Powder, a display material that can be used as an alternative to liquid crystal displays. Bridgestone then officially started its electronic display project in October 2004 with the world's first products of their kind that display text and graphics, as well as numerals, and that retain their images after the electrical power has been turned off. The displays were promoted initially as electronic price tags for merchandise.

The most recent displays developed by Bridgestone employ all-plastic panels instead of the traditional glass panel substrates. As a result, while retaining the properties of the QR-LPD (Quick Response - Liquid Powder Display), namely high visibility, wide viewing angle, excellent image sustainability and fast response, the new displays are flexible, ultra thin, ultra light and much larger. Further, the new displays solve the problem of image distortion when the display is bent through the use of a special rib structure. Meanwhile, the incorporation of the newly developed color Electronic Liquid Powder enables vivid two-color displays.

Bridgestone's Electro Liquid Powder is a high-fluidity powder. Its physical properties are intermediate between those of liquids and conventional, powdered solids; thus, the "Liquid Powder" nomenclature. In fact, the material flows like a particulate suspension. And it is extremely sensitive to electricity, which accounts for the fast responsiveness.

A Liquid Powder Display "remembers" the display information. That is, it continues to display the information after the power supply has been turned off. The new technology thus eliminates the need for electrical consumption in displaying static information.

The recent advancement enhances the convenience of information terminals by giving them greater portability and visibility, characteristics essential for the growing electronic paper display market. The displays are therefore expected to have wide application going forward, especially in the realms of advertising and information distribution.

Bridgestone will exhibit QR-LPD at the Society for Information Display 2006 exhibition to be held in California from June 4 to 9.

Explore further: Crystal structure and magnetism—new insight into the fundamentals of solid state physics

Related Stories

Self-assembly of gold nanoparticles into small clusters

August 4, 2014

Researchers at HZB in cooperation with Humboldt-Universitaet zu Berlin have made an astonishing observation: they were investigating the formation of gold nanoparticles in a solvent and observed that the nanoparticles had ...

Researchers make flexible, transparent e-paper from silicon

September 20, 2013

( —In the growing area of flexible, transparent electronic devices, silicon has not played much of a role. Instead, materials such as indium tin oxide, carbon nanotubes, and others are often used to make bendable ...

Recommended for you

Drone market to hit $10 billion by 2024: experts

October 3, 2015

The market for military drones is expected to almost double by 2024 to beyond $10 billion (8.9 billion euros), according to a report published Friday by specialist defence publication IHS Jane's Intelligence Review.

Radio frequency 'harvesting' tech unveiled in UK

September 30, 2015

An energy harvesting technology that its developers say will be able to turn ambient radio frequency waves into usable electricity to charge low power devices was unveiled in London on Wednesday.

Professors say US has fallen behind on offshore wind power

September 29, 2015

University of Delaware faculty from the College of Earth, Ocean, and Environment (CEOE), the College of Engineering and the Alfred Lerner School of Business and Economics say that the U.S. has fallen behind in offshore wind ...


Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.