Korean chipmaker licenses driver technology
Tomato LSI is to produce the world's smallest single-chip driver solution for amorphous silicon TFT PenTile VGA display panels after licensing PenTile RGBW technology from Clairvoyante
Tomato LSI, a Korean fabless chip manufacturer specialising in display driver integrated circuits, will produce the world's smallest single-chip driver solution for amorphous silicon TFT PenTile VGA display panels, an advance made possible by licensing PenTile RGBW technology from Clairvoyante.
The integration of PenTile technology will enable aSi providers to capitalise on the rising demand for high-resolution panels sparked by emerging data-centric applications and multimedia video in handheld mobile devices.
The first LCD driver IC from Tomato LSI to feature PenTile RGBW technology is a mere 21.9 x 1.45mm, making it ideal for applications requiring a smaller, thinner footprint.
It will support up to 256K colours, visual resolution up to 480 x 640, and standard data formats.
The driver has the same interface as standard RGB stripe smart driver ICs, but only requires two-thirds of the memory and two-thirds the number of source drivers.
It also will have integral gate driver support to reduce the chip sise and the number of transistor contacts.
Previously, aSi manufacturers were not able to efficiently produce high-resolution panels due to inadequate manufacturing processes.
But PenTile technology integration requires only minor modifications during production, uses fewer TFTs and columns, and reduces manufacturing complexity, thus opening the VGA market to older amorphous silicon display manufacturers.
PenTile technology also optimises display performance in terms of brightness and resolution - it can lower power consumption by at least half or more than double brightness; and it may enable smart drivers to be produced in a more cost-effective manner, giving LCD manufacturers an additional competitive advantage.
'Our partnership with Tomato LSI is pushing chip performance to a new level of performance in the emerging VGA mobile market'.
'This new chip will be at the cutting edge of power-efficiency for aSi driver chips', said Joel Pollack, President and Chief Executive Officer of Clairvoyante.
'We believe the development of this PenTile VGA driver chip will be a key building block to facilitating development of the high-resolution displays needed to encourage adoption of new generations of mobile products'.
'The addition of data-centric features such as cameras, enhanced audio, and internet capabilities continues to increase the demands for higher resolution displays and more power efficient portable devices', said Justin Sy Hong, President and Chief Executive Officer of Tomato LSI.
'Partnering with Clairvoyante allows us to offer display manufacturers a fully optimised, single-chip solution that will enable them to develop VGA resolution displays faster without sacrificing brightness, power efficiency or cost'.
Tomato LSI will sell these IC driver components to major LCD manufacturers worldwide for use in mobile phone panels with up to 3.0in diagonals, and intends to develop more PenTile chips to ease implementation, lower cost, and increase display performance.
The first VGA chip samples are now available.
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