
Apple has put the pressure on e-book readers with its forthcoming iPad tablet. But Amazon, Barnes & Noble and Sony aren’t taking it lying down. Color, touchscreens and improved black-and-white displays are some of the innovations that consumers can expect to see in electronic-reading gadgets this year.
“E-readers today are where the pre-iPod MP3 players were,” says Robert Brunner, founder of Ammunition, a design firm that worked on Barnes & Noble’s Nook. “It’s still very early and development is just beginning to ramp up.”
Since the launch of Amazon’s Kindle in 2007, e-readers have become a fast-growing category of consumer electronics products. But with the entry of the iPad, the e-reader market is at a crossroads. With its 9.7-inch color LCD screen, the iPad supports not just movies and web surfing, but also has an e-reading feature. Apple will also begin selling e-books for the iPad through its iTunes store.
But e-reader enthusiasts say that dedicated digital reading devices will continue to thrive despite competition from Apple.
Let’s take a look at five technologies that e-reader makers are betting on to keep their products relevant.

Better touchscreen and multi-touch could improve user interface in e-readers.
Touch
Touchscreens have been pivotal to the recent success of smartphones, so it is no surprise that e-reader manufacturers are looking at ways to bring the technology to their devices.
Unlike phones, e-readers are used primarily to consume content, which makes touch-based interaction a perfect fit. Flipping a page, clicking on a link or highlighting a paragraph is easier using simple touch-based gestures.
But touch on e-readers today is where it was on smartphones before the arrival of the iPhone: It’s primitive, not widely used and full of compromises. For instance, the resistive touchscreen on Sony’s e-reader does not offer the smooth, fast response that the capacitive touchscreen of an iPhone or a Motorola Droid can.
Adding a touch-sensitive upper layer to a screen also dims the display slightly, a real problem with the already low contrast ratio of E Ink screens.
“We are so used to responsive displays that if we touch something and it doesn’t react immediately, it is disappointing,” says Brunner. Nook has added touch into its secondary, 3.5-inch LCD touchscreen, instead of the larger E Ink display. Amazon hopes to take the technology to the next step.
The company recently acquired Touchco, a early-stage technology startup that could allow for a touch-capable layer to be embedded below the screen, instead of adding it on top as current touch technologies do.
E Ink is also working on its own to create touch-sensitive displays that put pressure sensors behind the display. The company hopes to have the first version ready by the end of the year.
Meanwhile, SiPix, another electronic paper display maker, is offering touchscreens that it claims are better than the resistive e-paper displays seen in devices such as the Sony Touch Reader. SiPix’s touchscreen will be available in e-book readers created by French company Bookeen.

Qualcomm's Mirasol technology promises low-power color displays.
Color
If there’s one thing that most e-reader enthusiasts want from the next generation of devices, it is color.
Sure, die-hard readers will scoff at the notion that color could enhance the experience of reading plain text, and they’d be right. But color would be key to enhancing illustrations, photos, covers and maybe even the clarity of the fonts themselves.
Display manufacturers are competing intensely to solve this problem with a variety of technologies. E Ink promises to have a color screen available by the end of the year. Qualcomm is already shopping around its 5.7-inch color display called Mirasol, which could debut in an e-reader by fall. Meanwhile, Pixel Qi, a California-based startup, is showing LCD displays that can do double duty as color screens as well as low-power, black-and-white displays.
Now that Apple iPad has paved the way, e-reader makers could also be re-evaluating the LCD as an alternative to the bistable, low-power but black-and-white E Ink display. Despite its ability to offer full color and touch, LCD screens didn’t set the e-reading market on fire because of their low battery life and the perceived issue of eyestrain.
If the iPad is successful, it won’t take long for Amazon and other ambitious companies to produce LCD-based tabletlike devices that are optimized for digital books and magazines, says Brunner.

Flexible screens will be lightweight and shatterproof.
Flexibility
E Ink is talking about flexible displays for the next generation of its screen technology.
Flexibility doesn’t mean you’ll be able to roll up the screens and stuff them in your backpack, but it is key to making readers with larger screens light enough to hold conveniently in one hand.
Instead of a layer of glass (which is at the foundation of most displays available currently) the next generation of e-readers will have lightweight screens that are based on a metal foil.
“Flexible doesn’t mean the display is floppy,” says Sri Peruvemba, vice-president of marketing for E Ink. “What flexible does mean is that it is lightweight, shatterproof and rugged.”
E Ink’s flexible displays combine a thin stainless steel foil transistor substrate with electronic-ink display material that is coated on a plastic sheet. That results in a screen that is extremely lightweight and slim, allowing for newer hardware design.
Weight is an area where E Ink can claim advantage over LCD displays. For instance, despite its glass, the 9.7-inch Kindle DX is about 27 percent lighter than the similar sized iPad: The Kindle DX weights 1.1 lbs compared to the iPad’s 1.5 lbs. With a foil-based substrate, the DX could be lighter by another 40 percent, says Peruvemba.
“When you get to a 11-inch screen size, if you put a glass substrate, you need two hands to just hold the device,” he says. “That’s why tablets haven’t taken off for reading. People want a device where they can have a free hand.”

The e-reader interface has much room for improvement.
Better Software
There’s more to a gadget than just good hardware. An elegantly designed user interface can put a gadget head and shoulders above its peers.
That’s where most e-readers have fallen short. E-reader manufacturers’ focus on hardware design means their user interfaces often feel like an afterthought.
Almost all e-readers today lack the interactive experience that could make reading digital books truly interesting, says Brunner. “If you look at the current products out there, they are they are just repurposing content from print and delivering it on a different medium without adding the value generated by that medium,” he says.
Meanwhile, Blio, e-reading software, has shown it is possible to develop an interface that could inject life into e-books. Blio is currently available for PCs, iPhone and iPod Touch. A similar interface for an e-reader could change the game.
Another way to enhance the experience may be through opening up e-readers to third-party apps, as Amazon has done with the Kindle. That could bring additional features to the devices and maybe even alternate readers with more elegant interfaces.

Better contrast in e-reader screens is high on the wish list of consumers and device makers. This photo approximates the difference between E Ink (left) and paper (right)
More Contrast
E Ink’s displays may be the current industry standard. But what they offer in clarity and readability, they lack in contrast: Their look is decidedly gray, like an Etch A Sketch.
The screens are also slow to change, sometimes taking as much as a second to switch between pages.
Fortunately for readers, the company plans to introduce new screens this year that will come with a faster response times and offer twice the contrast as existing products.
“The fundamental advantage is better contrast,” says Peruvemba. “The blacks will be blacker and the whites whiter. That’s a major request from our customers.”
See Also:
Photos: Jon Snyder/Wired.com


