Pixel Array Substrate Layout for Uniform Electric Field Distribution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Display devices face issues with display abnormalities such as 'rainy V lines' due to uneven electric field distribution caused by the placement of gate drive and data drive circuits, which can occur when not every pixel structure has a vertical gate line next to it, leading to inconsistent electrical connections.
Innovation Solution
A pixel array substrate design that includes a base with data lines, gate lines, pixel structures, common lines, and conductive line sets arranged in specific directions to ensure consistent electrical connections and uniform electric field distribution, with conductive line groups and auxiliary lines arranged to match each other's signal patterns, thereby alleviating display abnormalities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If the gate drive circuit and data drive circuit are disposed on the lower side of the display area to reduce frame width, then the frame width is reduced, but the electric field distribution becomes uneven causing display abnormalities
Solution Approach 1:
The patent introduces different types of conductive line sets (first conductive line groups with second gate lines, and second conductive line groups with first auxiliary lines) at different locations to create locally optimized electric field distributions. The first auxiliary lines are specifically configured to generate electric fields that compensate for the uneven distribution caused by the drive circuit placement, thereby maintaining display quality while achieving narrow frame width.
Solution Approach 2:
The conductive line sets act as intermediary elements between the drive circuits and pixel structures. These intermediate conductive lines (second gate lines and first auxiliary lines) mediate the electric field distribution, ensuring uniform potential distribution across pixel structures even when drive circuits are positioned at the lower side to reduce frame width.
2Device complexity
If not every pixel structure is provided with a vertical gate line next to it, then the device complexity is reduced, but the electric field distribution becomes uneven causing display abnormalities
Solution Approach 1:
The patent segments the gate line configuration into multiple types: vertical gate lines for some pixel structures, and first auxiliary lines for other pixel structures. This segmentation allows different regions to have different configurations, reducing overall device complexity while maintaining uniform electric field distribution through the complementary role of first auxiliary lines.
Solution Approach 2:
The first auxiliary lines serve multiple functions: they act as gate lines for pixel structures without vertical gate lines, and simultaneously function to compensate for electric field distribution in the overall display area. This multi-functionality reduces the need for additional dedicated compensation structures, simplifying the overall device design.
Data Source
AI summary
A pixel array substrate includes data lines, first gate lines, pixel structures, first common lines, and conductive line sets. The conductive line sets are arranged in a first direction. Each of the conductive line sets includes first conductive line groups and a second conductive line group sequentially arranged in the first direction. Each of the first conductive line groups includes second gate lines and a second common line. The second conductive line group includes first auxiliary lines and a second common line. An arrangement order of the second gate lines and the second common line of each of the first conductive line groups in the first direction are the same as an arrangement order of the first auxiliary lines and the second common line of the second conductive line group in the first direction, respectively.