News Release: The former Toshiba Mobile Display

January 16, 2007

- Features both High Resolution and High Reflectance -

Toshiba Matsushita Display Technology Co., Ltd. (TMD) has developed and started mass production of a high-resolution, 16-level grayscale, highly-reflective, 5-inch VGA monochrome thin-film transistor (TFT) liquid crystal display (LCD) which offers the combined features of high resolution and high reflectance, and is well suited for monochrome applications such as found in electronic dictionaries and books or operating panels of multifunctional office automation equipment.

Demand for electronic dictionaries has been growing due to their ability to easily and conveniently retrieve a wealth of information. In fact, sales of electronic dictionaries in the Japanese market reached 2.5 million units in fiscal year 2005, up 8.7 percent over the previous year.1 There is also a growing demand for advanced models that feature entries accompanied by photos and illustrations.

Concurrently, the sales of multifunctional office automation equipment (which incorporate not only copying functions but also printer, scanner, facsimile and other functions) recorded worldwide sales of 4.2 million units in FY2005, an 8.8% increase over the previous year.1 Demand is now shifting towards models which offer an easily readable and simple operating panel for multiple function control.

In order to meet such needs, TMD has developed a TFT LCD that ensures high-contrast images by incorporating a high-resolution VGA display, with 16-level grayscale, and advanced optical performance. The newly developed TFT LCD adopts a new, highly efficient reflective surface and internal reflection technology to maximize such optical performance, providing clear and crisp images, and is able to display small, well-defined characters easily. In addition, the new product has completely eliminated the need for a backlight thanks to the highly reflective optical performance, and thus enables a low power system design, one of the essential requirements for electronic dictionaries and ensures longer battery-powered operation. Furthermore, the new product provides faster display image rewriting compared to other reflective type display technologies, thus enabling displays which are more easily legible even during fast scrolling of texts or during video clips in electronic dictionaries or books.

With the above-mentioned advantageous features, the new product provides natural-looking representation of photos and paper-like images. In addition, with its high resolution it enables the viewing of a variety of functions even on a compact-size operating panel.

Item Product specifications
Display size (diagonal) 12.7 cm (5.01-inch)
Number of Pixels VGA (640 (H) x 480 (V))
Display mode Monochrome reflective display: Internal reflective display
Contrast ratio 12:1 (typical)
Response time Tr + Tf = 20 ms (typical)
Levels of gray 16
Power consumption 4 mW (Binary representation)
20 mW (16-level grayscale representation)

1 Source: market survey by Fuji Chimera Research Institute, Inc.

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