quinta-feira, 10 de janeiro de 2008

Fuji Xerox Exhibits Color Electronic Paper w/ Optical Writing System

Fuji Xerox Co Ltd unveiled a prototype of a color electronic paper compliant with an optical writing system at the International Display Workshops (IDW), which is open from Dec 5 to 7, 2007.
Its high brightness, high contrast, color strength and rewriting speed met with a public response. And a large crowd of people were incessantly flooding in to take a look at the prototype.
The electronic paper is made with reflective color liquid crystals that were developed by utilizing the selective reflection effect of cholesteric liquid crystals. Three layers (red, green and blue) are laminated to enable full-color display.
The display layers have a PDLC (polymer-dispersed liquid crystal) structure that disperses and retains cholesteric liquid crystals in a matrix of gelatin. Each of the three display layers is controlled by the optical writing system with organic photoreceptors.
The integrating sphere reflectance (white) of the electronic paper is 27.4%, and the contrast ratio (the ratio of white color reflectance to black color reflectance) is 6.4. The display is A6 size (105 × 148mm). It is as thin as 0.4mm and can be bent. It weighs 10.4g. For the future, the company plans to develop an A4 size display.
Fuji Xerox also prototyped an A5 size optical writing device that can write on two A6 size electronic papers. The device is equipped with an LCD panel for laptop computers and green and red LED arrays.
When I watched a video of the electronic paper being written, it looked like that the rewriting time is very short and less than one second. The display has a memory function and can be dealt as a paper after being removed from the writing device.

Fuji Xerox shows full-colour electronic paper

new tecnology.... let's see (well, read)


Mystery prototype promises bright future for e-paper display.

The International Display Workshops event currently taking place in Japan is mostly a trade show, although that doesn't mean there are no futuristic gadgets for us to bring you. One of the brightest stars of the show so far has been a full-colour electronic paper prototype from Fuji Xerox.
As the photo shows, the e-paper display can show more colours than the two or three we've typically seen in prototypes from other companies to date, but Fuji Xerox wouldn't confirm the exact technical specifications.
Gelatinous colours
It did say, however, that the 105 x 148mm sheet (A6 equivalent) is flexible and that its colour (RGB) liquid crystals are held in a gelatine matrix. Quite what that means is about as clear as mud, but the end result is visibly impressive.


The nature of the workshop event means there are very few details beyond that vague outline. But Fuji Xerox does have plans to scale the technology up to create an A4 display at some point, so here's hoping for some e-books that aren't as dull as the current models before long.

LG terá e-paper de 0,3 mm de espessura na CES

Parece q agora chega no mercado.... bom (pelo q a matéria fala) o uso desta não é para o leitor individual. Mas existem outras empresas desenvolvendo, não podemos perder as esperanças de um dia ler o jornal nesse "papel"


Uma parceria entre a holandesa Philips e a coreana LG produziu um novo modelo de e-paper. O e-paper, que será exibido pela primeira vez ao público durante a Consumer Eletronics Show (CES), tem o tamanho equivalente a uma página A4 e, segundo o consórcio, é altamente flexível e pode ser enrolado sem dificuldades. A tela tem espessura de 0,3 milímetro.
Segundo a LG, a tela pode exibir imagens com resolução de 1280 x 800 pixels e carregar 16,7 milhões de cores além de ser brilhante o suficiente para permitir visão num ângulo de até 180 graus.
A idéia é que a tela flexível seja usada em aplicações multimídia portáteis. Não há previsão de uso comercial da tela.
Outra vantagem alegada pelos desenvolvedores é o baixo consumo da tela, que só consome energia quando muda a imagem exibida.

link: http://info.abril.com.br/aberto/infonews/012008/04012008-12.shl/aberto/infonews/012008/04012008-12.shl