Image Display Panel White Sub-Pixel Segmentation
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Solution Overview
Problem
Existing image display technologies face challenges in maintaining high luminance while minimizing power consumption and preventing aperture area reduction in sub-pixels, leading to potential image quality deterioration.
Innovation Solution
The implementation of a 2-dimensional matrix layout where pixels are grouped with a fourth sub-pixel for white color placement between first and second pixels, optimizing sub-pixel output signals and preventing aperture area reduction, thereby enhancing luminance and image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a white-color display sub-pixel is added to increase luminance, then the luminance is improved, but the aperture area of each sub-pixel is reduced
Solution Approach 1:
The display panel is divided into pixel groups containing multiple pixels, with each pixel having three sub-pixels (red, green, blue). By segmenting the display into multiple pixels per group rather than using a single pixel per group, the invention can add white sub-pixels to increase luminance while maintaining adequate aperture area through the distributed sub-pixel arrangement across multiple pixels.
Solution Approach 2:
The invention applies different sub-pixel configurations to different pixels within the same pixel group. Specifically, while the first pixel has standard RGB sub-pixels, the second pixel includes a white sub-pixel in addition to RGB sub-pixels. This local differentiation allows luminance enhancement in specific areas without uniformly reducing aperture area across the entire display.
2Illumination intensity
If the aperture area of sub-pixels is reduced to fit more sub-pixels, then the luminance can be increased, but the image quality deteriorates
Solution Approach 1:
By dividing the display into pixel groups with multiple pixels, the invention maintains larger individual sub-pixel apertures compared to a single-pixel configuration. This segmentation prevents excessive aperture reduction while still achieving luminance enhancement through the addition of white sub-pixels in specific pixels within the groups.
Solution Approach 2:
The invention selectively adds white sub-pixels to specific pixels (second pixel) within pixel groups rather than uniformly across all pixels. This localized approach enhances luminance where needed while preserving image quality by maintaining adequate aperture sizes in other pixels, avoiding the quality deterioration that would result from universal aperture reduction.
3Illumination intensity
If the luminance is increased by adding white sub-pixels, then the power consumption increases
Solution Approach 1:
The invention adds white sub-pixels only to specific pixels (second pixel) within pixel groups rather than to all pixels. This selective local enhancement achieves luminance improvement in areas where it is most needed while minimizing the overall power consumption increase compared to a configuration where all pixels would have white sub-pixels.
Solution Approach 2:
By organizing pixels into groups and selectively adding white sub-pixels to only certain pixels within each group, the invention achieves luminance enhancement through a segmented approach. This reduces the total number of white sub-pixels required compared to a uniform configuration, thereby lowering power consumption while still achieving the desired luminance improvement.
Data Source
AI summary
Disclosed herein is a method for driving an image display apparatus including: an image display panel whereon pixels each having first to third sub-pixels are laid out in first and second directions to form a 2-dimensional matrix, at least each specific pixel and an adjacent pixel adjacent to the specific pixel in the first direction are used as first and second pixels respectively to create one of pixel groups, and a fourth sub-pixel is placed between the first and second pixels in each of the pixel groups; and a signal processing section configured to generate first to third sub-pixel output signals for the first pixel on the basis of respectively first to third sub-pixel input signals and to generate first to third sub-pixel output signals for the second pixel on the basis of respectively first to third sub-pixel input signals.