Array Substrate Layout for Higher Aperture and Color Isolation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The widening of common electrode lines in display panels due to overlapping color filter layers reduces the aperture rate, leading to color mixing and increased load on data lines.
Innovation Solution
An array substrate design featuring color filter channels between common electrode lines, filled with a planarization layer to prevent overlap and ensure flatness, along with light-shielding electrodes connected to the common electrode lines to prevent color mixing, allowing for narrower common electrode lines and improved aperture rate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the common electrode line is widened to prevent color mixing between adjacent sub-pixels, then color mixing is prevented, but the aperture rate is reduced
Solution Approach 1:
The patent divides the common electrode line into two separate parts: a first common electrode line portion and a second common electrode line portion. These segmented portions are positioned on opposite sides of the color filter overlap region, eliminating the need for a single wide continuous electrode line while still preventing color mixing through electrical connection via the common electrode connection portion.
Solution Approach 2:
The patent introduces a common electrode connection portion that acts as an intermediary to connect the first and second common electrode line portions. This connection portion is positioned in the color filter overlap region and enables electrical connection between the segmented electrode lines, allowing them to function together as a single common electrode system without requiring a wide continuous structure.
2Area of stationary object
If the common electrode line is narrowed to improve aperture rate, then aperture rate is improved, but color mixing occurs between adjacent sub-pixels
Solution Approach 1:
By segmenting the common electrode line into two separate portions positioned on opposite sides of the color filter overlap, the patent enables the use of narrower electrode lines that do not directly bridge the overlap region, thus improving aperture rate while maintaining color isolation through the segmented structure.
Solution Approach 2:
The common electrode connection portion serves as an intermediary that provides the necessary electrical connection between the segmented electrode lines without requiring them to be physically wide and continuous. This allows narrow electrode lines to function effectively while preventing color mixing through proper electrical connectivity.
3Quantity of substance
If the color filter layers are made to overlap to reduce data line load, then data line load is reduced, but the common electrode line must be widened causing aperture rate reduction
Solution Approach 1:
The segmentation of the common electrode line allows the color filter overlap structure to be maintained for data line load reduction while the electrode lines are divided to avoid spanning the entire overlap region, thus preventing aperture rate reduction despite the color filter overlap configuration.
Solution Approach 2:
The common electrode connection portion acts as an intermediary that enables the color filter overlap configuration to be maintained while providing the necessary electrical connection without requiring wide continuous electrode lines, thus allowing data line load reduction without sacrificing aperture rate.
Data Source
AI summary
Provided is an array substrate, a manufacturing method for an array substrate, and a display panel. The array substrate includes a first substrate base, common electrode lines, a color filter layer, and a planarization layer; the color filter layer includes first color filters and a second color filters, forming color filter channels therebetween on the common electrode lines, so as to avoid overlapping between the first color filters and the second color filters. The width of the common electrode lines is relatively small, ensuring a high aperture rate of the array substrate. Additionally, the array substrate further includes a planarization layer filled in the color filter channels, this minimizes the color filter channels to ensure flatness between the first color filters and the second color filters, so that etching residues in the color filter channels can be avoided when forming the pixel electrode layer.