Display Device Voltage Line Routing Between Demux Areas
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Solution Overview
Problem
Display devices face challenges in minimizing dead space in the non-display area due to the arrangement of voltage lines and demux circuits, which affects the overall efficiency and design of the device.
Innovation Solution
The display device incorporates a substrate with defined display and non-display areas, featuring voltage lines that pass between demux circuit areas, and includes voltage bypass lines along the edge of the display area, optimizing the layout to reduce the non-display area by minimizing the space between these components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If voltage lines and demux circuits are disposed in the non-display area, then the display device can provide necessary voltage and data signals to pixels, but dead space is formed in the non-display area
Solution Approach 1:
The voltage lines are configured to extend in different directions and pass through different regions of the non-display area. Specifically, the first voltage line extends in a first direction while the second voltage line extends in a second direction different from the first direction, allowing more efficient spatial utilization and reducing dead space formation
Solution Approach 2:
Multiple voltage lines (first voltage line, second voltage line, third voltage line) and demux circuits are integrated into the non-display area with optimized routing. The voltage lines are arranged to pass between demux circuits rather than around them, merging the functional requirements of voltage distribution and data signal routing into a compact configuration
2Area of stationary object
If traditional layout of voltage lines is used, then manufacturing is simplified, but the non-display area cannot be minimized
Solution Approach 1:
The voltage distribution network is segmented into multiple independent voltage lines (first voltage line, second voltage line, third voltage line), each carrying different voltages and extending in different directions. This segmentation allows flexible routing optimization to minimize the non-display area while maintaining manufacturing feasibility through standardized line configurations
Data Source
AI summary
A display device includes a substrate on which a display area including a plurality of pixels and a non-display area surrounding the display area are defined, a first voltage line disposed on the substrate in the non-display area, where the first voltage line provides a first voltage to the pixels, a second voltage line disposed on the substrate in the non-display area, where the second voltage line provides a second voltage to the pixels, and a first demux circuit area and a second demux circuit area disposed on the substrate in the non-display area, where the first demux circuit area and the second demux circuit area transmit data signals to the pixels. The first voltage line passes an area between the first demux circuit area and the second demux circuit area.