Los Angeles, Calif. Several display product vendors including E Ink, eMagin, Qualcomm, Toshiba and Universal Display are showcasing their latest technologies and prototypes at this week's Society for Information Display (SID) Conference and Exhibition.
Many of the latest display innovations target mobile device applications, and therefore, address several key issues including power consumption, small size, ruggedness and better imaging. Here are a few of the newest technologies and displays highlighted at SID 2008.
Showcasing its latest innovations in power-efficient OLED microdisplays, eMagin (Bellevue, Wash.) is demonstrating its SVGA+ Rev3 OLED-XL microdisplay, which it calls the most power-efficient OLED solution for near-eye personal viewer applications. The SVGA+ Rev3 display uses less than 115 mW power in monochrome such as for thermal imaging applications, and lower than 175 mW at 400 cd/m2 for full color video. This new microdisplay offers simpler calibration over temperature and is suitable for binocular luminance and color matching. It also shares all the functional and design characteristics of eMagin's original SVGA OLEDs, already proven in military and first-responder systems, responding instantly at temperatures as low as -40°C.
In addition, eMagin's SXGA OLED microdisplay is said to deliver the best combination of high resolution and low power requirement. The next-generation SXGA OLED microdisplay, targeted for introduction next quarter, offers both analog and digital signal processing in a compact package (0.77-inch diagonal active area) requiring less than 200 mW under typical operating conditions of 400 cd/m2, full-color. Design enhancements include increased pixel uniformity, improved color gamut, on-chip temperature sensor and compensation, and compatibility with both analog RGB and digital video signals. The company promises this high-density OLED-on-silicon microdisplay will be an affordable, easy-to-integrate solution for many virtual imaging systems. (See related product: SVGA OLED microdisplay delivers small pixel pitch)
Qualcomm MEMS Technologies, Inc. (San Diego, Calif.) has demonstrated the first reflective Interferometric Modulation (IMOD) color mirasol display, which the company said is one step forward in bringing mirasol displays into mainstream mobile devices.
The first 0.9-inch IMOD color mirasol display will be introduced by Freestyle Audio, creator of the industry's first and only waterproof, shockproof and virtually indestructible MP3 player, in its next-generation MP3 player product line. IMOD technology requires no backlighting and reflects light so that wavelengths interfere with each other creating pure, vivid colors, said the company. Mobile devices such as MP3 players and mobile phones, stand to benefit from these displays because they require significantly less power and harness ambient light sources to automatically scale for optimal viewing in virtually any lighting condition, according to the company.
Toshiba America Electronic Components (Irvine, Calif.) is showcasing an extensive selection of advanced LCD and OLED products and prototypes, many of which are aimed at industrial applications. (See related products: Industrial TFT-LCD modules feature replaceable LED backlights)
TEAC is featuring several technologies including optically compensated bend (OCB), low temperature poly-silicon (LTPS), screen fit, system-on-glass (SOG), LED backlighting, and organic light-emitting diode (OLED) displays. These technologies can be seen in approximately 50 technology demonstrations and prototype. Newly-announced or commercially-available displays will be featured in four application areas: industrial, mobile phone and portable electronics, automotive and mobile computing.
Just to name a few innovations on display, TEAC will demonstrate a high-resolution 3.0-inch WVGA (800 x 480) LTPS TFT LCD module, featuring five times the number of pixels as available in the common QVGA format, with a pixel density of 313 pixels per inch to support greater information content and improved image quality for web and mapping applications.
TEAC also will show the excellent color reproduction and true black performance of TMD's top emission OLED technology in a demonstration of a 3.18-inch WQVGA (240 x 427) active matrix module with an ultra-fast response time of less than 1.0 ms, high brightness of 400 cd/m2 and color gamut greater than 90 percent. In addition, the OLED panel features an ultra-wide viewing angle, and is thinner and lighter than an LCD, since no backlighting system is required.
Top-emission OLEDs emit light towards the viewer to achieve higher brightness with lower power consumption, compared to bottom-emission OLEDs, thereby extending the life of the panel, said TEAC. OLED panels typically provide high-contrast, clear images with ultra-fast response time for excellent moving picture performance.
E Ink Corp. (Cambridge, Mass.) is demonstrating its faster and more flexible displays using the E Ink Vizplex Imaging Film. On display is a new controller co-developed with Epson which is capable of animation, fast menus, typing, tablet screen sizes and increased grayscales. The controller is integrated with a Wacom touch tablet to demonstrate responsive pen input, adding an ePen to ePaper.
(See related product: Controller targets electronic paper displays)
Other featured E Ink products include electrophoretic displays for companies that seek the ultimate in low-power, paper-thin, sunlight readable, rugged, and low EMI with a unique look, and its newly launched segmented plastic display cell (SDC) product line, which is 40% thinner; operates in a broad temperature range, and is available in non-rectangular shapes. These are aimed at consumer electronics, PC accessory, display smartcards, capacity indicators, electronic shelf label, signage and communications applications.
E Ink Vizplex-based flexible matrix displays are being developed by a number of partner companies including Epson, LG Display, Plastic Logic, Polymer Vision, Prime View International, and Samsung. Several of these prototypes will be showcased in different booths at the show including a 12-inch flexible display in E Ink's booth.
At the show Universal Display Corp. (Ewing, N.J.) announced the development of the industry's thinnest flexible, active-matrix OLED (AMOLED) display prototype built to date, according to the company. Resulting from Universal Display's collaboration with Professor Jin Jang of Kyung Hee University, the company's research demonstrates significant flexibility enhancements and AMOLED robustness when built on ultra-thin metallic foil substrates. A joint paper will be presented at the show.