SIMPLIFIED WIRING SCHEMES FOR VERTICAL COLOR FILTER PIXEL SENSORS

摘要

Vertical-color-filter pixel sensors (42, 28, 36) having simplified wiring and reduced transistor counts are disclosed. In an embodiment, a single line is used for reference voltage, pixel reset voltage, and column-output signals in a VCF pixel sensor (30). In another embodiment, row-reset signals and row-enable signals are sent across a line that is shared between adjacent rows in an array of VCF pixel sensors (30). The present invention also provides an optimized layout for a VCF pixel sensor. With shared row-reset, row-enable, reference voltage and column-output lines as well as a VCF pixel sensor (30) in which source-follower voltage, source-follower amplifier voltage and row-enable signals all share a common line. These combined line embodiments can be used with a single column-output line as well as two row-enable lines. The embodiments can also be implemented in a VCF pixel sensor without a row-enable transistor.