Gate-on-Panel Signal Line Sharing for Compact Driver Layout
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Solution Overview
Problem
Conventional electronic devices with signal stage gate on panel (GOP) driving circuits require multiple sets of driving signals, leading to increased layout space due to the arrangement of driving signal lines around the gate on panel driving unit, which complicates the layout and can cause signal differences from varying trace distances.
Innovation Solution
The electronic device incorporates a substrate with adjacent first and second driving units connected by shared signal lines, where the first signal line transmits a signal to both driving units, and the second signal line transmits another signal to at least one of them, effectively reducing layout space and minimizing signal differences caused by trace distance variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If driving signal lines are disposed around the gate on panel driving unit and connected one by one to function blocks, then each function block can receive its driving signal, but the layout space increases and the circuit layout becomes complex
Solution Approach 1:
The patent merges multiple driving signal lines into a shared bus line that is disposed inside the gate on panel driving unit. Multiple function blocks share this common bus line, eliminating the need for separate signal lines around each driving unit. This combining approach reduces layout space while maintaining signal transmission reliability through the shared internal bus structure.
Solution Approach 2:
The patent transitions from a two-dimensional layout where signal lines are disposed around the periphery to a three-dimensional internal structure where the bus line is embedded within the gate on panel driving unit. This dimensional change allows signal lines to be routed through the internal volume of the driving unit rather than occupying peripheral layout space, effectively reducing the overall device area.
2Reliability
If multiple separate signal lines are used for each driving unit, then each unit receives its signal independently, but the trace distance varies causing signal differences
Solution Approach 1:
The patent combines multiple driving units into a unified structure with a shared bus line that distributes signals to all function blocks. This merging ensures that all units receive signals from the same source through a common pathway, eliminating signal differences caused by varying trace distances from multiple separate sources. The unified internal bus structure simplifies the circuit layout while maintaining signal integrity across all driving units.
Data Source
AI summary
An electronic device includes a substrate, a first bus line, a second bus line, a plurality of driving units, a first signal line and a second signal line. The first bus line is disposed on the substrate and outputs a first signal. The second bus line is disposed on the substrate and outputs a second signal. The driving units are disposed between the first bus line and the second bus line, and include a first driving unit and a second driving unit which are adjacent to each other. The first signal line is electrically connected to the first bus line and transmits the first signal to the first driving unit and the second driving unit. The second signal line is electrically connected to the second bus line and transmits the second signal to at least one of the first driving unit and the second driving unit.