Shared Sub-Pixel Display Aperture Ratio Optimization
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Solution Overview
Problem
Existing flat panel display technologies face challenges in improving aperture ratio, transmittance, and color reproducibility, particularly in achieving high pixel density while maintaining efficient data line configuration and manufacturing costs.
Innovation Solution
The display apparatus incorporates a timing controller, gate driver, and data driver to manage sub-pixels in a specific arrangement, where each pixel group shares a sub-pixel, allowing for a reduced number of data lines and enhanced color representation, with sub-pixels arranged in various configurations to optimize aperture ratio and transmittance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If traditional RGB stripe structure with three sub-pixels per pixel is used, then color reproduction is maintained, but aperture ratio and transmittance are limited
Solution Approach 1:
Two adjacent pixels share a common sub-pixel, merging their light output capabilities. This shared sub-pixel structure allows the display to achieve higher transmittance and brightness without requiring separate sub-pixels for each pixel, thus improving illumination intensity while managing device complexity
Solution Approach 2:
The shared sub-pixel serves dual functionality by contributing to both adjacent pixels simultaneously. This multi-functional design reduces the total number of sub-pixels needed, thereby increasing aperture ratio and transmittance while maintaining color reproduction quality
2Manufacturing precision
If more sub-pixels are added to each pixel to improve color reproduction, then color reproducibility improves, but the number of data lines and device complexity increase
Solution Approach 1:
Adjacent pixels share common sub-pixels, reducing the total sub-pixel count across the display. This merging approach maintains color reproducibility through the shared sub-pixels while decreasing the number of data lines required, thus lowering device complexity
Solution Approach 2:
The patent transitions from a traditional one-to-one pixel-subpixel mapping to a many-to-many sharing relationship across adjacent pixels. This dimensional change in the data structure allows efficient color reproduction with reduced data line requirements
3Area of stationary object
If aperture ratio is increased by reducing sub-pixel count, then transmittance improves, but pixel density may be compromised
Solution Approach 1:
By merging sub-pixels across adjacent pixels through sharing, the aperture ratio increases as fewer physical sub-pixel structures are needed. The shared sub-pixels maintain pixel density by contributing to multiple pixels simultaneously, thus resolving the trade-off between aperture ratio and pixel density
Data Source
AI summary
A display apparatus includes a display panel, a timing controller, a gate driver, and a data driver. The display panel includes a plurality of pixel groups. Each of the pixel groups includes a first pixel and a second pixel disposed adjacent to the first pixel. The first and second pixels together include n (n is an odd number equal to or greater than 3) sub-pixels. The first and second pixels share their collective {(n+1)/2}th sub-pixel.