Toshiba Matsushita Display Announces the Development 
of World’s First Low-Temperature Polysilicon TFT LCD Prototype 
with Finger Shadow Sensing Input Capability

Finger Shadow Sensing Input Function Enables Direct Selection 
and Navigation on the Display Surface

Tokyo, Japan -- Toshiba Matsushita Display Technology Co., Ltd. (TMD*), the leading manufacturer of TFT LCD modules for mobile applications, today announced a low-temperature polysilicon (LTPS) TFT LCD display prototype with finger shadow sensing input capability. This approach enables users to use their finger to directly touch the display surface to select icons or buttons and navigate through pages in the same manner as a conventional touch-screen approach. TMD will exhibit this new display in the Toshiba Corporation booth, #C38 of Hall 8 at CEATEC Japan 2005, October 4-8 in Makuhari Messe, Chiba, Japan. TMD will also exhibit the prototype in booth, #205, at FPD International 2005, October 19-21 in Pacifico Yokohama, Kanagawa, Japan.
　
One of the company’s strategic efforts has been to take advantage of the characteristics of LTPS technology to develop system-on-glass (SOG) based products. In April 2003, TMD announced the world’s first input-display that could scan images placed directly onto the surface of the display. In December 2004, TMD developed the first prototype input display with touch-sensing capability. Then, on September 20, 2005, TMD announced an LTPS TFT LCD prototype with light pen input capability that was achieved through the steady upgrade and advancement of TMD’s SOG technology. 

This new LTPS TFT LCD prototype, with the ability to sense a user’s finger shadow directly at the surface of the display, is expected to eventually achieve commercial level performance for display screen sizes commonly used in mobile phone applications. By improving and incorporating higher resolution LTPS technology, TMD has achieved faster switching speeds, greater photo-sensor sensitivity, and more precise control of the input signal.

Similar to TMD’s previously announced input displays, this new finger shadow sensing input display incorporates advanced SOG technology to integrate photo sensors and signal processing LSI functions directly onto the glass. This differs from today’s existing methods of incorporating input capability into display systems, which add additional devices such as touch-screens. Since the finger shadow sensing input function is integrated directly into the display, without any additional input devices, the result is a thinner, lighter and more compact package with high reliability. 

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