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EE Times-India > Optoelectronics/Displays

LCD driver aimed at HD smartphone apps

Posted: 29 Jul 2013     Print Version  Bookmark and Share

Keywords:Solomon Systech  HD smartphone  LCD driver  SSD2080M  AMOLED 

Solomon Systech has launched an LCD driver supporting high-definition metal oxide panel technology. According to the company, the SSD2080M is intended for HD smartphone applications. Apart from allowing the use of fewer mask layers in panel production compared to LTPS/AMOLED that helps cut

production costs effectively, it can also achieve up to 350ppi.

The unique bistable feature of metal oxide panel facilitates the retaining of display quality with low

frequency operation. The SSD2080M, with its "frame skipping" technology, can help reduce the power consumption of metal oxide panels. The average frame frequency of an operating a-Si panel is 60Hz for ordinary application. SSD2080M, with its advanced function of "frame skipping," can drive the average frame frequency of a metal oxide panel to as low as 1Hz without sacrificing the display quality. In the case of driving an average frame frequency of 30Hz, SSD2080M enabled metal oxide panel can reduce the average display power consumption by 25 per cent. This "frame skipping" function on metal oxide panel is extremely important for high-end smartphones with high power consumption applications. Besides, the SSD2080M has a small amplitude interface (MIPI-DSI) to transfer mass data at a high speed and to support low-power operation, added the firm.

To cater to different customers' needs, SSD2080M supports a range of resolutions. With SSD2080M, images are displayed by the recently developed Display Enhancement Engine, which enables enhancement of colour (saturation), contrast, sharpness and sunlight readability; while the colour correction function makes the images as vivid and clear as those adopting high cost AMOLED and LTPS displays. The high electronic mobility of metal oxide also helps reduce TFT cell size, thereby increases the light transmission rate, making the display look much brighter and sharper.

Solomon Systech noted that the SSD2080M is highly integrated with a competitive die size. Not only that it integrates the advanced GIP circuit to reduce the number of gate control signal, it also operates with a 4 lane MIPI-DSI that requires only four pairs of data lane and one pair of clock lane to achieve high speed data transfer of 2.2Gb/s/four channels, which largely reduces pin count from the controller.

The compact design of SSD2080M together with the high electronic mobility feature of metal oxide panels enable modules with narrow bezel design (about 1mm), which helps to maximise the display area of the screen.

The SSD2080M samples are available.

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