Pixel Layout Through-Hole Dark Spot Repair
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Solution Overview
Problem
Current pixel layouts are limited in that when one pixel enters a dark state and cannot be lit up, it can only be darkened, significantly affecting the display effect, especially in three-color display modes where dark spots appear on white screens.
Innovation Solution
A pixel layout featuring adjacent pixels connected by through-holes that allow electrical connection between their electrodes, enabling a dark pixel to be compensated by an adjacent pixel, thus preventing dark spots from affecting the display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single pixel is used as a repeating unit in the pixel layout, then the manufacturing process is simple and the device structure is compact, but when one pixel has a dark state it cannot be lit up and the display effect is seriously affected
Solution Approach 1:
The patent merges adjacent pixels into a pixel repeating group where multiple pixels share common through-holes and electrode structures. This allows electrical connection between adjacent pixels, enabling compensation when one pixel has voltage loss. The merging of structures increases reliability while controlling complexity through shared components.
Solution Approach 2:
The patent changes the electrical connection parameter by introducing through-holes that electrically connect adjacent pixels. This parameter change enables voltage compensation between pixels, transforming the system from isolated pixels to interconnected pixels, thereby improving display reliability without significantly increasing structural complexity.
2Reliability
If through-holes are defined between adjacent pixels to enable electrical connection, then pixels with voltage loss can be repaired, but the aperture ratio of the display panel may be reduced
Solution Approach 1:
The patent applies local quality by positioning through-holes specifically in spacing areas between pixels rather than uniformly across the entire pixel structure. This localized approach enables repair functionality only where needed (between adjacent pixels) while minimizing the impact on the overall aperture ratio, as the through-holes occupy only the existing spacing rather than reducing the light-emitting area of each pixel.
3Reliability
If adjacent pixels are electrically connected through shared through-holes, then dark spots can be compensated, but the manufacturing precision requirements increase
Solution Approach 1:
The patent segments the pixel layout into repeating groups with defined spacing areas, where through-holes are positioned in these designated spaces. This segmentation approach standardizes the through-hole locations and simplifies the manufacturing process, as the through-holes are confined to specific spacing regions rather than requiring precise positioning anywhere in the pixel structure, thereby reducing overall manufacturing precision requirements.
Data Source
AI summary
A pixel layout and a display panel having the pixel layout are provided. The pixel layout includes a plurality of pixel repeating groups, and each of the pixel repeating groups is formed by two adjacent pixels. Two through-holes are positioned between the two pixels, and first ends of the two through-holes are respectively connected to pixel electrodes of the pixels. When one of the pixel electrodes of the two pixels has a voltage loss and the pixel thereof presents a dark spot, second ends of the two through-holes are connected to allow the pixel having the dark spot to display normally with help of the other pixel, thereby repairing the dark spot.