Mesh Auxiliary Lines for Stable Gate Potential Compensation
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Solution Overview
Problem
Existing display devices face challenges in increasing resolution while transmitting separate power for compensating the potential of a gate electrode of a first transistor to light emitting pixel drivers through a mesh-shaped line.
Innovation Solution
A display device configuration that includes a substrate with a circuit layer and an element layer, featuring light emitting elements, light emitting pixel drivers, and mesh auxiliary lines. The mesh auxiliary lines are electrically connected to power lines, allowing for the transmission of power for compensating the gate electrode potential through a mesh-shaped line without adding separate lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate power for compensating the potential of the gate electrode of the first transistor is transmitted to the light emitting pixel drivers through a mesh-shaped line, then the potential compensation is achieved, but the resolution of the display device increases
Solution Approach 1:
The patent combines the power transmission function with the mesh-shaped line structure that already exists for other purposes. By integrating the gate electrode potential compensation power transmission into the existing mesh line architecture, the patent avoids adding separate dedicated lines, thereby maintaining high resolution while achieving stable potential compensation.
Solution Approach 2:
The mesh-shaped line is designed to serve multiple functions: it provides structural support, enables potential compensation power transmission, and maintains display resolution. This multi-functional design allows the same physical structure to fulfill several roles without compromising any single performance aspect.
2Stability of the object's composition
If power for compensating the potential of the gate electrode is supplied uniformly throughout the display area, then uniformity of the first transistors is achieved, but the device complexity increases
Solution Approach 1:
The patent segments the power transmission into a mesh-shaped line pattern rather than using a single uniform power distribution system. This segmentation allows power to be delivered uniformly across the display area through multiple distributed points, achieving transistor uniformity while avoiding the complexity of a centralized power distribution system.
Solution Approach 2:
The patent transitions from a single-dimension power transmission approach to a two-dimensional mesh-shaped line structure. By distributing power transmission across multiple dimensions (both horizontal and vertical lines forming a grid), the patent achieves uniform power delivery without increasing overall system complexity.
Data Source
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AI summary
A display device includes a substrate; a circuit layer; and an element layer. The substrate includes a display area, and a non-display area disposed around the display area. The circuit layer includes a first power supply line and a second power supply line disposed in the non-display area; light emitting pixel drivers arranged to be parallel to each other in a first direction and a second direction; first power lines extending in the first direction and electrically connected between the first power supply line and the light emitting pixel drivers; second power lines extending in the first direction and transmitting a third power; and mesh auxiliary lines extending in the second direction. The mesh auxiliary lines include a first mesh auxiliary line electrically connected to the first power lines; and a second mesh auxiliary line electrically connected to the second power lines.