Product category: Memory Devices and Modules
News Release from: Toshiba Electronics Europe | Subject: SOG displays
Edited by the Electronicstalk Editorial Team on 26 October 2005
LCD module has novel touch technology
A low-temperature polysilicon TFT LCD prototype incorporates novel finger shadow sensing input technology.
Toshiba Matsushita Display Technology (TMD), the leading manufacturer of TFT LCD modules for mobile applications, has developed a low-temperature polysilicon (LTPS) TFT LCD 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
This article was originally published on Electronicstalk on 8 Nov 2004 at 8.00am (UK)
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The new display incorporates advanced system-on-glass (SOG) technology to integrate photosensors and signal processing functions directly onto the glass.
This differs from today's existing methods of incorporating input capability into display systems, which require 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.
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 photosensor sensitivity, and more precise control of the input signal.
One of TMD'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, the company developed the first prototype input display with touch-sensing capability.
Then, in September 2005, it 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.
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