Sony to establish ST Mobile Display Corporation
Sony to establish ST Mobile Display Corporation

Sony to establish ST Mobile Display Corporation

Sony to establish ST Mobile Display Corporation

Sony Corporation today announced the establishment of “ST Mobile Display Corporation”(hereafter STMD). This follows Sony’s purchase of the LCD panel manufacturing business previously owned by International Display Technology (hereafter IDTech). The new company will produce low-temperature polysilicon thin film transistor liquid crystal displays (hereafter LTPS-TFT-LCD) panels for mobile products.LTPS-TFT-LCD panels are used in various mobile products such as video cameras, digital still cameras and mobile telephones and Sony expects these markets to grow even further from now on. 

Following ST Liquid Crystal Display Corp (hereafter STLCD), a joint venture between Sony and Toyota Industries Corporation established in October 1997, Sony will position STMD as the second manufacturing base of LTPS-TFT-LCD panel for mobile products. It will address customer’s various needs through the technological cooperation of STMD and STLCD.

The company will inherit production equipment, facilities, and personnel from IDTech’s plant in Yasu-shi, Shiga prefecture in Japan. Sony will invest approx. 27 billion yen on equipment and facility modification and this will enable STMD to have a production capacity of 25,000 units/month (550x650mm circuit board base). The mass production of LTPS-TFT-LCD panels is scheduled to start from April 2006.

Furthermore, it has also been decided that Toyota Industries Corporation will be investing 20% of STMD’s capital.

Executive Deputy President and COO of Sony Corporation, Dr. Ryoji Chubachi stated:
“I am delighted that we have completed the purchase agreement and the establishment of the LCD display panel plant previously owned by IDTech on schedule. Together with Toyota Industries Corporation, Sony will fully utilize both STLCD and STMD to create superb quality LTPS-TFT-LCD panels for mobile products that meet customers’ needs.”

Outline of ST Mobile Display Corporation (STMD)

Establishment : March 31st, 2005
Capitalization : 100 million yen
Investment Breakdown : Sony 80%, Toyota Industries Corporation 20%
President and
representative director : Tadaharu Tsuyuki
Vice-President and
representative director : Hisao Hayashi
Location : 800 Ichimiyake, Yasu-shi, Shiga Prefecture
Surface Area : 20,021 m2
Main products : Low-Temperature Polysilicon TFT LCD Panels
Floor Area of Facility : Office 3,269 m2(3 floors),
Manufacturing 28,926 m2(2 floors)
Investment : 27 billion yen (planned)
Production Capacity : 25,000 panels/month (unit size: 550x650mm)
Production Start : April 2006 (planned)

About Sony

Sony Corporation is a leading manufacturer of audio, video, game, communications, key device and information technology products for the consumer and professional markets. With its music, pictures, computer entertainment and on-line businesses, Sony is uniquely positioned to be the leading personal broadband entertainment company in the world. Sony recorded consolidated annual sales of approximately $72 billion for the fiscal year ended March 31, 2004.

For further information, please visit the Sony home page at:

Sony Corporation
Gerald Cavanagh
Tel: +81-3-5448-2200;
Fax: +81-3-5448-3061