Product category:
Microprocessors, Microcontrollers and DSPs
News Release from: Hitachi Europe | Subject: HD66773
Edited by the Electronicstalk Editorial
Team on 19 November 2002
Controller colours a full spectrum of
TFTs
Hitachi has a single chip controller driver that offers large-screen, multicolour display support for TFT colour liquid crystal display systems.
Hitachi has a single chip controller driver that offers large-screen, multicolour display support for TFT colour liquid crystal display (LCD) systems The HD66773 offers high picture quality together with low power consumption of 3.8 or 0.9mW (at 260,000 and eight colours, respectively)
This article was originally published on Electronicstalk on 16 Feb 2001 at 8.00am (UK)
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Volume production will begin in November 2002.
The HD66773 supports a 132 x 176pixel display, the largest class of display screen size for mobile phones, and can show up to 260,000 colours using the on-chip hardware dither circuit.
An eight-colour display mode for primary-colour display can be used as a power-down function.
This mode cuts current dissipation by halting the supply of unnecessary gradation-level power circuits, providing a drastic reduction in system power consumption.
The controller driver incorporates a high-speed burst RAM-write function that enables processing at a maximum speed of 160Mbit/s.
This function allows large-volume data writing, such as colour image data writing and high-speed display rewriting of RAM data for smooth moving-image display.
A 9/18bit interface for 260,000 colour and a 8/16bit interface for 65,000 colour systems are provided to allow easy porting from existing LCD systems to the HD66773.
Chip-on-glass (COG) mounting is supported, whereby the device is mounted directly face-down on the LCD glass substrate.
As the HD66773 is a single-chip it can be positioned at the bottom of the glass, with the display position in the centre of the glass.
This provides a reduction in the liquid crystal panel glass size as well as a reduction in the number of parts.
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