X-RAY MATRIX IMAGER BASED ON A MULTIPLE-GATE-LINE DRIVING SCHEME AND A SHARED-GATE-LINE DRIVING SCHEME

摘要

An X-ray matrix imager is configured to operate based on a multiple-gate-line driving scheme and a shared-data-line driving scheme. The X-ray matrix imager includes a matrix with multiple pixels, multiple gate line sets, multiple data lines, multiple gate drivers, multiple row multiplexers, and multiple pull-down units. Each gate line sets includes a first gate line coupled to a first pixel and a second gate line coupled to a second pixel adjacent to the first pixel. Each data line is coupled to the multiple gate line sets for receiving charges accumulated on the pixels. Each row multiplexer is configured to selectively couple a corresponding gate driver to the first gate line or the second gate line in a corresponding gate line set. Each pull-down unit is configured to couple the first gate line to a constant voltage when the first gate line is not coupled to the corresponding gate driver.

主权项

1. A matrix imager, comprising:
a matrix having a plurality of rows of pixels configured to accumulate charges in response to light or radiation; a plurality of gate line sets, each gate line set including:
a first gate line coupled to a first pixel among a first row of pixels of the matrix, anda second gate line coupled to a second pixel; a plurality of data lines, each arranged to be coupled to both the first pixel and the second pixel for receiving charges accumulated on the first pixel and the second pixel; a first gate driver configured to provide a first select signal for turning on the first pixel and the second pixel; a first row multiplexer configured to selectively couple the first gate driver to the first gate line or the second gate line; and a first pull-down unit configured to couple the first gate line to a constant voltage when the first gate line is not coupled to the first gate driver.