Tag: ‘Display’

NTT to test digital aromatic signs

18 Oct 2007

Digital aroma-emitting sign by NTT -- NTT Communications (NTT Com) has announced plans to begin testing its latest aroma-emitting digital sign technology, called "Kaoru Digital Signage," in Tokyo. The tests, which will take place outside the Kirin City Beer Hall in the underground Yaesu Shopping Mall (JR Tokyo station) from October 21 to the end of December, will involve internet-controlled signs that display electronic imagery of beer while emitting aromas such as lemon and orange. The researchers aim to study the sign's effectiveness in drawing passersby into the restaurant.

Billed as the world's first advertising sign system capable of emitting multiple aromas while displaying electronic images, the signs combine NTT's Spot Media digital signage service (currently used in marketing and customer service applications at banks, hospitals, public offices and retail stores) with its Kaori Tsushin online fragrance communication service. Kaori Tsushin, which gives users web-based control over aroma-emitting devices, is already in use at retail stores and cafes, where it is reportedly helping to improve on-site customer satisfaction.

NTT's new sign system consists of a 30 x 50 x 15 centimeter (12 x 20 x 6 inch) aroma diffuser, a 19-inch display and an NTT Spot Media content receiver, which are used to deliver aroma and display images of beer (and live shots from inside the restaurant) based on instructions received via a web connection. In the tests, the sign's smell will change according to the time of day, dispersing appetizing orange and lemon aromas at lunchtime, and releasing a more relaxing "woody" aroma at night.

The aroma diffuser contains three 450-milliliter bottles of aroma oil. When the "recipe" -- which determines the type and strength of smell -- is received via the web, the device releases a vapor created by blasting the oil with a series of ultrasonic waves. With the ability to deliver fragrances across a 500 square meter (5,400 square feet) area, the new aroma diffuser is a great deal more powerful than NTT's Aromageur, which was developed for personal use in spaces the size of a small bedroom.

The scheduled testing follows a spate of aroma-related experiments conducted by NTT earlier this year. On Valentine's Day, NTT researchers conducted an experiment with vanilla fragrance in an office lobby. When vanilla fragrance was periodically released near free chocolate (labeled with a "Please Take One" sign) placed on a reception counter, the researchers found that passersby were nearly twice as likely to take a chocolate. In other experiments conducted at Tokyo-area bookstores from May to September, relaxing orange and lavender aromas were found to boost monthly sales by nearly 5%.

[Sources: NTT press release, IT Media]

U-Tsu-Shi-O-Mi virtual humanoid

12 Oct 2007

U-Tsu-Shi-O-Mi Virtual Humanoid --

U-Tsu-Shi-O-Mi is an interactive "mixed reality" humanoid robot that appears as a computer-animated character when viewed through a special head-mounted display. A virtual 3D avatar that moves in sync with the robot's actions is mapped onto the machine's green cloth skin (the skin functions as a green screen), and the sensor-equipped head-mounted display tracks the angle and position of the viewer's head and constantly adjusts the angle at which the avatar is displayed. The result is an interactive virtual 3D character with a physical body that the viewer can literally reach out and touch.

U-Tsu-Shi-O-Mi Virtual Humanoid --

Researcher Michihiko Shoji, formerly of NTT DoCoMo, helped create U-Tsu-Shi-O-Mi as a tool for enhancing virtual reality simulations. He is now employed at the Yokohama National University Venture Business Laboratory, where he continues to work on improving the virtual humanoid. The system, which currently requires a lot of bulky and expensive equipment to run, will likely see its first real-world applications in arcade-style video games. However, Shoji also sees a potential market for personal virtual humanoids, and is looking at ways to reduce the size and cost to make it suitable for general household use.

Here is a video of U-Tsu-Shi-O-Mi.

The virtual humanoid will be on display at ASIAGRAPH 2007 in Akihabara (Tokyo) from October 12 to 14.

[Source: Robot Watch]

Teleglass T4-N wearable monitor

05 Oct 2007

Teleglass T4N wearable monitor --

Optical device maker Scalar has added a limited-edition model to its line of video glasses. The Teleglass T4-N wearable monitor, which weighs 30 grams and features titanium frames by eyeglass designer Kazuo Kawasaki, was developed in cooperation with long-established manufacturer Masunaga Optical.

Teleglass T4-N connects to any NTSC-capable video player (including iPods) and delivers images directly to the eye via a pair of tiny monitors tucked away behind the lenses. The 640 x 480 screen resolution at close proximity simulates the effect of watching a 45-inch screen from 2 meters (6 feet) away, and each monitor can be focused and adjusted for an optimal picture that reduces eye strain. Audio is delivered through a pair of frame-mounted earphones.

With all the components hidden behind the lenses and crammed into the nosepiece, the lightweight Teleglass T4-N wearable monitor looks like a pair of stylish sunglasses. The monitors do not completely obstruct the view, allowing users to safely and comfortably enjoy audio-video entertainment during the course of everyday activities.

For now, 500 sets are available through the Scalar website, where they sell for 134,400 yen ($1,150) each.

[Link: Teleglass via Gigazine]

AIST improves 3D projector

18 Jul 2007

3D display --- In 1926, Kenjiro Takayanagi, known as the "father of Japanese television," transmitted the image of a katakana character (?) to a TV receiver built with a cathode ray tube, signaling the birth of the world's first all-electronic television. Last week, in a symbolic gesture over 80 years later, researchers from Japan's National Institute of Advanced Industrial Science and Technology (AIST), Burton Inc. and Hamamatsu Photonics K.K. displayed the same katakana character using a 3D projector that generates moving images in mid-air.

The 3D projector, which was first unveiled in February 2006 but has seen some recent improvements, uses focused laser beams to create flashpoint "pixels" in mid-air. The pixels are generated as the focused lasers heat the oxygen and nitrogen molecules floating in the air, causing them to spark in a phenomenon known as plasma emission. By rapidly moving these flashpoints in a controlled fashion, the projector creates a three-dimensional image that appears to float in empty space.

The projector's recent upgrades include an improved 3D scanning system that boosts laser accuracy, as well as a system of high-intensity solid-state femtosecond lasers recently developed by Hamamatsu Photonics. The new lasers, which unleash 100-billion-watt pulses (0.1-terawatt peak output) of light every 10-trillionths of a second (100 femtoseconds), improve image smoothness and boost the resolution to 1,000 pixels per second. In addition, image brightness and contrast can be controlled by regulating the number of pulses fired at each point in space.

The researchers say these improvements bring us one step closer to realizing the dream of 3DTV, but considering it took eight decades for Takayanagi's primitive 40-scan-line television to evolve into our present-day HDTV, we might have a while to wait.

[Source: AIST press release]

TWISTER: Telexistence Wide-angle Immersive STEReoscope

26 Jun 2007

TWISTER: Telexistence Wide-angle Immersive STEReoscope

A research team led by Susumu Tachi from the University of Tokyo has developed a rotating panoramic display that immerses viewers in a 3D video environment. The Telexistence Wide-angle Immersive STEReoscope, or TWISTER, is the world's first full-color 360-degree 3D display that does not require viewers to wear special glasses, says professor Tachi, who has spent over 10 years researching and developing the device.

TWISTER -- Inside the 1.2 meter (4 ft) tall, 2 meter (6.5 ft) wide cylindrical display are 50,000 LEDs arranged in columns. As the display rotates around the observer's head at a speed of 1.6 revolutions per second, these specially arranged LED columns show a slightly different image to each of the observer's eyes, thus creating the illusion of a 3D image. In other words, TWISTER tricks the eye by exploiting what is known as "binocular parallax" -- the apparent difference in position of an object as seen separately by the left eye and the right eye.

TWISTER -- For now, TWISTER is capable of serving up pre-recorded 3D video from a computer, allowing viewers to experience things like virtual amusement park rides or close-up views of molecular models. However, the researchers are working to develop TWISTER's 3D videophone capabilities by equipping it with a camera system that can capture real-time three-dimensional images of the person inside, which can then be sent to another TWISTER via fiber optics. In this way, two people separated by physical distance will be able to step into their TWISTERs to enjoy real-time 3D virtual interaction.

However, given TWISTER's size, the first order of business might be to figure out how to fit it through your front door.

[Source: Asahi]

NTT’s Tangible-3D display

21 Jun 2007

NTT Comware Tangible-3D Technology -- Researchers at NTT Comware have just made virtual reality a little more real. On June 20, the company unveiled a 3D display system that reproduces the physical feel of three-dimensional video by means of an actuator glove worn on the hand, allowing viewers to literally reach out and touch the person or object on the screen.

The so-called "Tangible-3D" prototype system is built around an improved version of NTT's 3D display -- originally developed in 2005 -- which displays 3D images without requiring special glasses. The system relies on a pair of cameras that capture and process data about the position, shape and size of objects as they are filmed. As the two video images are combined into a 3D image that is displayed on the screen at the receiving end, the data is relayed to the glove, whose array of actuators translate it into a tactile impression the user can feel. The glove operates in real-time along with the 3D video, so the user can "feel" the on-screen image as it moves.

For now, the Tangible-3D system only works in one direction, but NTT Comware is developing a two-way system that allows tactile impressions to be transmitted back and forth between multiple users. The company is also working to improve the 3D screen, which only appears three-dimensional from a particular viewing angle.

While the possibilities for this technology are endless, NTT Comware suggests it could be put to use in museum exhibits that would allow visitors to handle items on display that are ordinarily off-limits. The company also says this technology could be put to use in classrooms, where it would allow students to touch objects located very far away.

NTT Comware will exhibit the Tangible-3D system at the Industrial Virtual Reality Expo being held at Tokyo Big Sight from June 27 to 29.

[Source: NTT Comware press release via Mainichi]

Flexible, full-color OLED display

24 May 2007

Flexible organic EL display --

On May 24, Sony unveiled what it is calling the world's first flexible, full-color organic light emitting diode (OLED) display built on organic thin-film transistor (TFT) technology. OLEDs typically use a glass substrate, but Sony researchers developed new technology for forming organic TFT on a plastic substrate, enabling them to create a thin, lightweight and flexible full-color display. The 2.5-inch prototype display supports 16.8 million colors at a 120 x 160 pixel resolution (80 ppi, .318-mm pixel pitch), is 0.3 mm thick and weighs 1.5 grams without the driver.

According to Sony, which plans to release a new line of miniature TVs this year and is bolstering efforts to develop next-generation flat-panel OLEDs, this new technology will lead to the development of thinner, lighter and softer electronics.

The company is scheduled to present the results of its research at the SID 2007 International Symposium now underway in the US.

Here's the video.

[Source: IT Media, Sony press release]

New cement conducts electricity like metal

11 Apr 2007

Electro-conductive cement ---

A team of researchers led by professor Hideo Hosono of the Tokyo Institute of Technology has developed a new type of alumina cement that conducts electricity like metal by altering the crystal structure at the nano level.

Ordinary alumina cement made from a lime-alumina compound (C12A7) has a crystal structure consisting of asymmetric cages, making it a poor conductor of electricity. But by sealing the alumina cement compound along with titanium inside a glass tube and heating it to 1,100 degrees Celsius, the researchers were able to create a homogenized, symmetrical cage structure that conducts electricity like metal.

Results indicate the cement's electrical conductivity is on par with that of manganese at room temperature. Moreover, like other metals, the cement's conductivity increases as its temperature decreases.

The researchers say that forming the cement into thin membranes would make it nearly transparent, making it an ideal substitute material for rare metals such as indium, which is used in plasma and liquid-crystal displays. In addition to being cheaper than rare metals, the cement would make an environmentally-friendly alternative because its ingredients are more readily available.

The Tokyo Institute of Technology worked with researchers from Osaka Prefecture University, the Institute of Physical and Chemical Research (RIKEN), and the Japan Synchrotron Radiation Research Institute (SPring-8) to develop the cement. The results are published in the April 11 edition of Nano Letters.

[Sources: Nikkei Net, Mainichi, SPring-8 press release]

Gemotion screen shows video in living 3D

22 Jan 2007

Gemotion -- Here's a groovy display for people looking to add that extra dimension to their viewing material...

Gemotion is a soft, 'living' display that bulges and collapses in sync with the graphics on the screen, creating visuals that literally pop out at the viewer.

Yoichiro Kawaguchi, a well-known computer graphics artist and University of Tokyo professor, created Gemotion by arranging 72 air cylinders behind a flexible, 100 x 60 cm (39 x 24 inch) screen. As video is projected onto the screen, image data is relayed to the cylinders, which then push and pull on the screen accordingly.

"If used with games, TV or cinema, the screen could give images an element of power never seen before. It could lead to completely new forms of media," says Kawaguchi.

The Gemotion screen will be on display from January 21 to February 4 as part of a media art exhibit (called Nihon no hyogen-ryoku) at National Art Center, Tokyo, which recently opened in Roppongi.

[Source: Asahi]

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