Display Panel Voltage Line Layout for Narrow Bezels
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Solution Overview
Problem
Existing display apparatuses face challenges in reducing the peripheral area while maintaining or improving the quality, such as thinness and low power consumption, as well as optimizing the layout of voltage and data lines to enhance display efficiency.
Innovation Solution
The display apparatus incorporates a substrate design with defined display and peripheral areas, featuring voltage wiring, auxiliary patterns, and connectors arranged in specific directions and layers to optimize the layout of voltage and data lines, reducing line lengths and enhancing connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the peripheral area is reduced to increase display area, then the display quality and efficiency improve, but the layout complexity of voltage and data lines increases
Solution Approach 1:
The voltage lines are divided into multiple segments (first voltage lines, second voltage lines, auxiliary voltage lines) that can be independently routed and connected. This segmentation allows flexible layout adaptation to reduced peripheral areas while maintaining electrical connectivity across the display panel.
Solution Approach 2:
The patent introduces auxiliary voltage lines and connectors that extend in directions perpendicular to the main voltage line orientation. This dimensional approach allows voltage distribution to proceed in multiple directions simultaneously, reducing the impact of peripheral area reduction on layout complexity.
2Reliability
If voltage lines are extended to cover larger areas, then connectivity improves, but power consumption increases
Solution Approach 1:
The voltage distribution network is segmented into multiple independent voltage line groups (first voltage lines, second voltage lines, auxiliary voltage lines). Each segment can be independently controlled and optimized, allowing connectivity to be maintained while reducing total line length and associated power consumption.
Solution Approach 2:
Instead of providing continuous voltage lines across the entire display area, the patent uses auxiliary voltage lines and connectors to provide voltage only where needed. This partial action approach maintains necessary connectivity while minimizing the total length of voltage-carrying conductors and reducing power consumption.
3Manufacturing precision
If the number of connectors is increased to improve voltage distribution, then display uniformity improves, but manufacturing complexity increases
Solution Approach 1:
The display panel is divided into multiple voltage distribution zones connected by auxiliary connectors. This segmentation allows each zone to be manufactured and tested independently, potentially simplifying the overall manufacturing process despite the increased number of connection points.
Solution Approach 2:
The auxiliary connectors serve multiple functions: they distribute voltage to different regions, provide measurement points for uniformity testing, and enable modular manufacturing approaches. This multi-functionality reduces the need for separate components and processes.
Data Source
AI summary
A display apparatus includes: a substrate having a display area and a peripheral area around the display area; a first voltage wiring on one side of the peripheral area; a plurality of first voltage lines arranged in a first direction at the display area, extending in a second direction, and electrically connected to the first voltage wiring; a plurality of second voltage lines arranged in the second direction at the display area and extending in the first direction; a plurality of first connectors connecting the plurality of first voltage lines to the plurality of second voltage lines; a plurality of first auxiliary patterns extending in the first direction or the second direction on the display area; and a plurality of second connectors connecting at least one of the plurality of first voltage lines or the plurality of second voltage lines to the plurality of first auxiliary patterns.