This was the presentation I gave at SID 2007 event in San Diego, CA (October 2007)

1. Remote LCD Buffer, Controller and Bridge An Engineering and Business Case for today’s mobile communication terminal Shri Sundaram, Toshiba America Electronic Components, Inc. Oct 2/3, 2007

3. Challenges posed by trends

6. Critical to overcoming these challenges

7. Critical to overcoming these challenges – Buffer Memory Host CPU (Cellular BB) Application Engine Frame Buffer Memory Host CPU (Cellular BB) Application Engine Frame Buffer Memory LCD Buffer LCDD RGB I/F LVDS I/F LVS I/F LCDD LCD Buffer LVDS I/F ~ refresh cycle 15fps/30fps video codec ~ refresh cycle 15fps/30fps video codec WVGA WVGA

8. Comparing the two cases! ~ refresh cycle Host CPU (Cellular BB) Application Engine Frame Buffer Memory Host CPU (Cellular BB) Application Engine Frame Buffer Memory Bridge LCDD RGB I/F LVDS I/F LVDS I/F LCDD WVGA WVGA Type 2 Type 1 Host CPU (Cellular BB) Application Engine Frame Buffer Memory Host CPU (Cellular BB) Application Engine Frame Buffer Memory LCD Buffer LCDD RGB I/F LVDS I/F LVS I/F LCDD LCD Buffer LVDS I/F ~ refresh cycle 15fps/30fps video codec ~ refresh cycle 15fps/30fps video codec WVGA WVGA Main Difference

10. The Need for Display Buffer WVGA Display BB w/ QVGA RAM (for video and screen saver) no RAM!! WVGA Buffer BB Cost Power/ Performance RAM WVGA Display (Performance) (Cost???)