Overlapping Pixel Array Display Panel Aperture Ratio
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Solution Overview
Problem
Conventional liquid crystal display panels face a decrease in pixel aperture ratio and increased load on driving circuits as panel resolution increases, affecting display quality due to the need for wider or more driving circuit lines.
Innovation Solution
The design incorporates a first and second pixel array with the second pixel array overlapping the first, and a display medium in between, forming display units that reduce the area required for active devices, thereby increasing the pixel aperture ratio.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the panel resolution is increased, then the pixel number increases, but the pixel aperture ratio decreases
Solution Approach 1:
The patent merges two pixel arrays (first and second pixel arrays) into a single display structure, where pixel sets from both arrays share common driving circuits and display medium. This consolidation reduces the total number of independent active devices required, thereby increasing the pixel aperture ratio while maintaining high pixel density.
Solution Approach 2:
The patent implements multi-functional driving circuits that serve multiple pixel sets simultaneously. The scan lines and data lines are designed to drive pixel sets from both the first and second pixel arrays, reducing the overall circuit complexity and active device area while supporting high resolution display.
2Reliability
If the line width or number of the driving circuit is increased, then the load on the driving circuit is reduced, but the pixel aperture ratio becomes even lower
Solution Approach 1:
The patent combines multiple pixel sets under a single driving circuit control, where one scan line and one data line drive multiple pixel sets from both pixel arrays. This reduces the total number of driving circuit lines required, maintaining adequate load capacity with narrower lines and preserving more area for pixels.
3Power
If the active device area is increased, then the driving capability is improved, but the pixel aperture ratio decreases
Solution Approach 1:
The patent merges the functionality of multiple active devices into a reduced set of shared active devices that control multiple pixel sets simultaneously. This consolidation maintains sufficient driving capability for high resolution display while reducing the total active device area occupation.
Data Source
AI summary
A display panel including a first pixel array, a second pixel array and a display medium therebetween is provided. The first pixel array includes a plurality of first pixel sets, and the second pixel array includes a plurality of second pixel sets. The second pixel array is disposed overlapping the first pixel array, and the display medium is disposed between the first pixel array and the second pixel array. A display unit set is constituted by each of the first pixel sets, one of the second pixel sets disposed overlapping the each of the first pixel sets and the display medium disposed between the first pixel set and the second pixel set, and the display unit set includes a plurality of display units.