Display Device Connecting Line Structure for Gate Voltage Uniformity
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Solution Overview
Problem
Display devices face issues where the same signal or voltage is not consistently supplied through multiple lines due to variations in shape, position, or structure, leading to potential problems in image display.
Innovation Solution
A display device design that includes two gate voltage lines with a connecting line structure overlapping a common electrode, allowing for the consistent supply of gate high voltage regardless of the shapes, positions, or structures of the lines, ensuring uniform voltage distribution across pixels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If two or more gate voltage lines are used to supply gate high voltage, then the voltage supply capacity is improved, but voltage inconsistency occurs due to differences in line shapes, positions, or structures
Solution Approach 1:
A connecting line structure is introduced as an intermediary element that electrically connects multiple gate voltage lines to the common electrode. This mediator ensures that despite differences in the shapes, positions, or structures of the gate voltage lines, the same gate high voltage is reliably supplied to the common electrode by providing a unified electrical pathway.
Solution Approach 2:
The connecting line structure is designed to create equipotential conditions between multiple gate voltage lines. By providing a low-impedance electrical connection path, the structure ensures that all gate voltage lines maintain the same potential level when supplying gate high voltage, thereby eliminating voltage inconsistency caused by line variations.
2Adaptability or versatility
If gate voltage lines have different shapes, positions, or structures, then routing flexibility is improved, but voltage uniformity deteriorates
Solution Approach 1:
The connecting line structure serves as a mediator that decouples the relationship between line geometry and voltage uniformity. It allows gate voltage lines to have different shapes, positions, or structures for routing flexibility while maintaining voltage uniformity by providing a standardized electrical connection interface to the common electrode.
Solution Approach 2:
The connecting line structure performs multiple functions: it provides electrical connection, ensures voltage uniformity, and accommodates various line configurations. This universal component enables the system to handle different routing scenarios while maintaining consistent voltage supply characteristics.
Data Source
AI summary
A display device includes two or more pixels disposed in a pixel area in which two or more data lines intersect two or more gate lines; a common electrode commonly disposed on the pixels; a first gate high voltage supplied through a first gate voltage line, a portion of the first gate high voltage overlapping the common electrode; a second gate high voltage supplied through a second gate voltage line, a portion of the second gate high voltage overlapping the common electrode; a connecting line structure in contact with the common electrode, and extending from the common electrode in a direction toward a position in which the common electrode does not overlap the first gate voltage line.