Sensor Device Circuit Positioning for Compact Y-Dimension
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Solution Overview
Problem
Existing sensor devices with two-dimensional arrays face increased dimensions in the y-dimension due to the separate positioning of gate drive and readout circuits along different axes, which can be a challenge in compact designs, such as those for mobile devices.
Innovation Solution
The gate drive and readout circuits are positioned along the same axis, allowing for a reduction in the overall sensor device dimensions in the y-dimension by routing traces efficiently and potentially dividing the gate drive circuit into portions to further minimize size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If gate drive circuit and readout circuit are positioned along different axes, then circuit functionality is maintained, but device dimensions in y-dimension increase
Solution Approach 1:
The patent combines the gate drive circuit and readout circuit positioning along the same axis (first axis), merging their spatial arrangement to reduce the overall device footprint in the y-dimension, while maintaining all necessary circuit functionalities through efficient trace routing.
Solution Approach 2:
The patent repositions circuits from a distributed arrangement across different axes to a consolidated arrangement along a single axis, effectively changing the dimensional utilization of the circuit layout to minimize the y-dimension footprint.
2Area of stationary object
If circuits are repositioned along the same axis, then device size is reduced, but trace routing complexity increases
Solution Approach 1:
The gate drive circuit is divided into multiple portions (first gate drive circuit portion and second gate drive circuit portion) positioned at different locations along the first axis, allowing traces to be routed more efficiently to sensor pixel circuits while maintaining compact overall dimensions.
Data Source
AI summary
Disclosed is a sensor device comprising: a two-dimensional array of sensor pixel circuits, wherein the two-dimensional array includes a first axis and second axis, and wherein the two-dimensional array includes more sensor pixel circuits along the second axis than along the first axis; a gate drive circuit disposed along on the first axis of the two-dimensional array configured to drive one or more sensor pixel circuits; and, a readout circuit disposed along on the first axis of the two-dimensional array configured to receive output information from the one or more sensor pixel circuits.