E-paper that enables large screen displays with multi-tiling

NEC LCD Technologies has successfully developed A3 and A4 sized electronic paper using the microcapsule electrophoretic system.

Developed by E Ink Corporation (USA), the electrophoretics system contains white pigment particles electrified with positive electrodes, and black pigment particles electrified with negative electrodes. Each pigment particle is contained in a clear microcapsule that is moved by applying voltage, which thereby creates a visible display. The prototype uses E Ink's "Vizplex Imaging Film."

The new e-paper modules leverage NEC LCD Technologies and advancements with TFT active matrix to secure 16 step grayscale, white reflectivity of 43% and a contrast ratio of 10:1 - giving higher visibility and gradation when compared to general newspapers.

By combining up to eight modules, which incorporate the company's original multi-tiling controller, the e-paper modules can be used to form large screen displays. The A3 e-paper module is composed of especially narrow frames, with two sides measuring just 1mm, which enables the creation of large screens that feature effective multi-tiling.

The displays reduce strain on the eyes by utilizing reflected light and paper which enables wide viewing angles and high visibility under direct sunlight. Power is kept to a minimum by using reduced electricity when displaying information and only a limited amount of energy is required to perform screen rewriting.

The A3 and A4 modules have drawn particular attention due to consumer's existing daily use of similarly sized paper - the slim light-weight design makes it an ideal portable electronic device for the avid newspaper reader and business manager.

The company say they will continue to promote the research and development of e-paper modules and will aim for large-scale production of new applications that address a wide range of uses spanning many different fields.

New Chip from Epson promises new capabilities for e-ink displays

Epson and its subsidiary, Epson Electronics America, have joined hands with E Ink, a developer of Electronic Paper Display (EPD) technology, to jointly develop display controller IC. This new controller has been designed to bring new capabilities for E Ink's Vizplex-enabled electronic paper displays.

EPD low-power consumption screen technology is driving new mobile applications like eBooks, eNewspapers, tablet PCs, laptop secondary displays, eNotebooks, and eDictionaries.

The new EPD controller IC (part number S1D13521B) combines technologies from both Epson and E Ink. It will be offered in production quantities by Epson and as part of E Ink's upcoming AM300 Broadsheet prototype kit.


It promises to speed up the user interface of EPDs via better navigation, drop down/popup menus, responsive cursors, and real-time keyboard entry. The controller enables the display to perform up to 16 tasks in parallel, and supports pen input devices for annotations and sketches.

E Ink claims future devices using this chip could offer a fast menu interface, simple animations, higher grayscale levels, and user input through typing and touch.

Samples of the Epson S1D13521B will be available in May 2008. Production quantities will be available in August 2008. Sample price is US $18.

E-Ink is also offering a Broadsheet AM300 prototype kit for engineers to develop next generation ePaper products. Compatible with different sizes of active matrix displays, it allows users to create functional, low profile product mock-ups.

The AM300 will be shipping in June. It can be pre-ordered at E Ink's website.


Via CXOtoday Staff