Array Substrate Gate Cutout Reducing Crosstalk
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Solution Overview
Problem
Conventional liquid crystal display panels experience coupling capacitance and crosstalk between data and gate lines, leading to uneven image display and lower image quality due to overlapping areas and interference between thin film transistors in each pixel region.
Innovation Solution
The array substrate design includes a gate cutout in the area where the gate line intersects the data line, reducing coupling capacitance and crosstalk by electrically isolating the first and second pixel electrodes and transistors, with the gate cutout extending beyond the intersection area to minimize interference between transistors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the gate line and data line overlap in the pixel region, then the thin film transistor can be driven by the data line and gate line, but coupling capacitance is generated between the data line and gate line, resulting in crosstalk and uneven image display
Solution Approach 1:
The patent extracts the problematic overlapping section by introducing a gate cutout that removes the gate line from the area where it would intersect with the data line. This separation eliminates the coupling capacitance between the data line and gate line, thereby resolving the crosstalk issue while preserving the driving functionality of the thin film transistor
2Adaptability or versatility
If two thin film transistors are provided in each pixel region to drive two pixel electrodes, then wide viewing angle is achieved, but the two thin film transistors interfere with each other, resulting in lower image quality
Solution Approach 1:
The patent segments the gate line structure by introducing a gate cutout that divides the gate line into separate sections. This segmentation spatially separates the two thin film transistors in each pixel region, reducing their mutual interference while maintaining the dual-transistor configuration needed for wide viewing angle display
3Device complexity
If the gate line intersects the data line in the pixel region, then the thin film transistor structure is formed, but coupling capacitance is generated, resulting in crosstalk between data line and gate line
Solution Approach 1:
The patent applies the extraction principle by removing the gate line from the intersection area with the data line through the gate cutout. This eliminates the source of coupling capacitance while preserving the essential transistor structure formed by the interaction of gate and data lines in non-overlapping regions
Data Source
AI summary
An array substrate, a method of manufacturing the same, and a display device are provided. In the array substrate of the present disclosure, the gate cutout is formed in the area where the gate line intersects the data line. The array substrate can reduce the coupling capacitance between the data line and the gate line. When the gate cutout extends beyond the area between the first thin film transistor and the second thin film transistor, the mutual interference between two thin film transistors of each pixel region can be further reduced.