Samsung Electronics has developed a chip that allows screens that really are half VGA to appear to be full VGA displays.
Samsung’s new chip generates color using sub-pixel rendering. Unlike most display methods that express color pixel by pixel, this method gets two data lines from each pixel. By creating a new pixel from the sub-pixel on the adjacent line, 480-by-640-pixel (VGA) resolution can be obtained from a 240-by-640-pixel (HVGA) screen.
Additionally, the problem of dark screens due to the increased pixel density on high resolution panels has been solved using 4-color (R-G-B-W) rendering algorithm, improving the brightness up to 50 percent.
Samsung believes this will allow future mobile phones to have VGA screens that are less than 2.4 inches
“Development of high-resolution displays is urgently needed with the advent of camera phones, video phones, TV phones and other new products that require an entirely different level of image quality,” said Dr. Jin-tae Kim, vice president of System LSI Division at Samsung Electronics. “The 4-color sub-pixel rendering technology we recently developed will play a key role in the transition to ultra-high-resolution panels for mobile products. Moreover, our development of this new chip will put us in an advantageous position in the hotly-contested market for mobile size displays.”
Samsung Electronics plans to begin using this new display technology on high-end mobile phone models in the second quarter of 2005. The company will then steadily expand its application to other product lines.