& inorganic LEDs

Flexible LED array (Science)
One of the researchers' prototypes wraps neatly around a thumb
The technology behind giant video billboards can now be made into flexible and even transparent displays.
These could be used to create brakelights that fit the curves of a car or medical diagnostics that envelop a patient like a blanket.
It has been made possible by a new technique, outlined in Science, for manufacturing so-called inorganic LEDs.
The new method allows these tiny light-emitting diodes (LEDs) to be attached to materials such as glass or rubber.
"[This] enables new kinds of 'form factors' that would allow you to put lighting sources on curved surfaces or in corners, places where you can't put light sources nowadays," Professor John Rogers of the University of Illinois at Urbana-Champaign told BBC News.
Stamp of approval
There are two types of light-emitting diode (LED) technology, inorganic and organic.
The vast majority of consumer electronics use the inorganic version.
For a square centimetre of the material these are 400 times brighter than their organic cousins.
"If you look at the billboard displays that exist already, they're inorganic LED based," said Professor Rogers.
"You can see them on a bright sunny day; it would be impossible to generate that kind of brightness out of an organic LED."
When arrays of inorganic LED's are used - such as those in billboard displays - they are made in a large wafer which is sawn into bits.
Each bit is then placed individually by a robot arm, making the production of large or dense arrays complex.
Organic LEDs (OLEDs) on the other hand have been introduced into some consumer electronics such as televisions.
They are in theory easier to manufacture because they can be made individually smaller, processed in high quantities and spread out in thin films that are easy to manipulate and connect electrically.
However, they are not as robust as inorganic LEDs, and must be encapsulated because they are sensitive to oxygen and moisture.
Professor Rogers and his colleagues have now devised a method that in theory comprises the best of both worlds - bright, robust inorganic LEDs that can be processed en masse.
The approach is able to make thin inorganic LEDs in high quantities in such a way that they can be cut up by bathing them in a strong acid.
LED array (Science)
Flexible lighting could mean an end to darkened corners
The separated elements can then be picked up with a "stamp", with holes cut precisely to size for the elements, and then placed on a wide array of surfaces, from glass to plastic to rubber.
The devices can be placed sparsely enough that a bright layer of them is practically transparent.
"Because you can get away with very low coverage by area, it opens up the possibility of making something that's see-through," Professor Rogers explained.
He said that the nearer-term applications for the approach will be in general lighting or in the illumination of instrument panels, but the group is working toward perfecting the application.
"Displays remain the ultimate goal - we don't need a new law of physics to enable it, it's just more of an engineering question," he said.


my twisted words



beautifully constructed collages.
layering of various textures and patterned papers.
making sense from destruction.
zooming in and focussing on small elements of the image. exciting. detail. peeling


&Karen Bleitz

Interactive wall sculpture produced as part of the Root exhibition. ViewAers are invited to dissect and recompose the image of a unicorn - the artist’s first digital image created with DOS programming at the age of ten.

Wall mounted interactive sculpture with three texts on the theme of ‘Generation X’. The trough of magnetized words allows the readers to speak back to the authors and in the process creates a constantly shifting reflection of all who come into contact with the piece.

Magnetized texts on the theme of ‘Generation X’ are re-composed, photocopied then inserted by the readers. The role of authorship and authority in the age of digital communication is explored as the boundaries between author and public break down in the cut-and-paste world.

Re-written by each new reader, the book puts forth questions about identity and how it is constructed. Relentlessly, it demands the answer to, ‘How do you spell a woman?’

A kinetic portrait created from electronic conversations that stream between the states of fantasy and reality. The work examines what peoples’ virtual selves, avatars and other digital reincarnations, reveal about the transient nature of identity today.

A pop-out jig-sawed book-work on the theme of the cloned sheep, Dolly, with a freestanding herd of sheep integrated into the form of the book.

Discs, drivers, levers and gears are used to create mechanical metaphors and to give readers a new, physical tool with which to break down and examine the underlying meaning of words.

Karen Bleitz has been creating book works in England since 1997. Her Interactive and often sculptural books draw readers in by allowing them to alter or manipulate the page.

Books with machines, pop-ups, and magnets become dynamic stages where the reader actively participates in debates around issues that range from the evolution of language to the role of gender and the body in communication. The transformations that take place within the pages force her readers to 're-view' and experience the subjects from a changed perspective.

&the humument


& Sam Winston

Through his explorations of language Sam Winston creates sculpture, drawings and books that question our understanding of words, both as a carriers of messages and as information itself.


& 3D patterns

Hervé Graumann created 3D patterns using everyday objects. Repetition//colour/ the absurd.
if you squint from far away the patterns look less distinctive then on closer inspection the individual objects become evident. bizarre. impractical? mass production. quite fun. like a doodle made of objects. organisation playful and childlike. juxaposing.