News Release: The former Toshiba Mobile Display

October 12, 2005

Toshiba Matsushita Display Announces the Development of the World's First Low-Temperature Polysilicon TFT LCD Prototype With New-Generation System-on-Glass Technology.
- New Prototype Fully Integrates the Complete Driving System Directly Onto the Glass Without any External LSI Circuits -

Tokyo, Japan -- Toshiba Matsushita Display Technology Co., Ltd. (TMDisplay), the leading manufacturer of thin film transistor (TFT) LCD modules for mobile applications, today announced a new-generation system-on-glass (SOG) low-temperature polysilicon (LTPS) TFT LCD prototype with the complete driving circuit required to operate the LCD fully integrated directly onto the glass. TMDisplay will exhibit this new display in booth #205, at FPD International 2005, October 19-21 in Pacifico Yokohama, Kanagawa, Japan.

TMDisplay is known for its innovative technology and strives to provide the most leading-edge products. In summer 2001, we started mass production of the world's first LTPS TFT LCD with the digital-to-analog converter (DAC) and amplifier circuit integrated directly onto the glass, by taking the most advantage of the characteristics of LTPS technology through a system-on-glass approach. Afterwards we also started mass production of the world's first LTPS TFT reflective-type LCD with the memory function integrated directly onto the glass. Now, our in-house technology has progressed and we have achieved higher performance LTPS technology to enable a new-generation of SOG technology. In this new prototype we realize the integration of 1) the analog circuit for 260K color production with 6 bit per color gray scale (including DAC and amplifier circuitry); 2) the driving circuit required for addressing the rows and columns of the display; 3) the power circuit for the driving circuit; and 4) the controlling circuit regulating the analog, driving, and power circuits as well as all the other circuit functions required to operate the LCD. As a result, by eliminating the external LSI circuits, we can now achieve a smaller, more compact, and lighter LTPS TFT LCD that minimizes the outer printed circuit board (PCB) size and provides for quick and simple assembly.

Currently, mobile applications require LCDs to be much thinner and lighter in structure, accelerating the trends towards the adoption of thinner glass. This new LTPS TFT LCD display, which incorporates the fully-integrated driving circuits directly onto the glass, has an advantage over existing chip-on-glass (COG) bonding and assembly processes in terms of expected production quality levels. We expect this new LTPS TFT LCD prototype, with fully-integrated circuitry through SOG technology, to be valuable in mobile phone and other various applications.

Items Specifications
Display Size (diagonal) 5.6cm (2.2-inch)
Pixel Format 240 x 320 (QVGA)
Number of Colors 260K Colors
Display Mode Transmissive

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