Staggered Sub-Pixel Display Device for High PPI 3D Imaging
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Solution Overview
Problem
Traditional 3D display devices have a low pixel-per-inch (PPI) due to the physical resolution limitations of their pixel arrays, which results in an inferior 3D display effect.
Innovation Solution
A display device with a pixel array comprising columns of sub-pixels arranged in a cyclic pattern of three colors, where each column has a longitudinal offset and alternating light-blocking and transparent areas in the grating, allowing for increased PPI by borrowing brightness values from adjacent sub-pixels to enhance display resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional pixel array configuration is used, then manufacturing is simple, but PPI is low and 3D display effect is inferior
Solution Approach 1:
The patent introduces a longitudinal offset dimension between odd and even columns of sub-pixels, transforming the traditional single-plane pixel arrangement into a staggered multi-layer configuration. This dimensional change allows adjacent columns to contribute brightness values to the same visual position, effectively increasing PPI without adding more physical pixels in the lateral direction.
Solution Approach 2:
The patent merges brightness information from multiple adjacent sub-pixels (both odd and even columns) to form a single enhanced display position. By combining the luminous output of several physical pixels into one perceived pixel location, the system achieves higher effective PPI while maintaining the original physical pixel count.
2Reliability
If grating blocks partial pixel array area, then 3D display effect is achieved, but display resolution decreases
Solution Approach 1:
The patent segments the pixel array into odd columns and even columns, with each column type contributing to different depth planes in the 3D display. The grating blocks alternate column groups to create distinct left-eye and right-eye views, while the longitudinal offset ensures that blocked and unblocked columns together provide enhanced resolution through brightness borrowing.
Solution Approach 2:
Different regions of the pixel array (odd vs. even columns) are assigned different functional roles in the 3D display process. Odd columns may be assigned to one depth plane while even columns are assigned to another, with each region optimized for its specific function while collectively providing high-resolution 3D imagery.
Data Source
AI summary
A display device and its display method are provided. The display device includes a pixel array and a grating; the pixel array includes a plurality of columns of pixels with each pixel comprising at least two sub-pixels; each column of sub-pixels is formed by cyclically arranged sub-pixels of at least three colors, and an amount of sub-pixels in each column of sub-pixels are the same and a size of each sub-pixel is the same; an upper edge of each sub-pixel in an odd column is aligned with that of a sub-pixel in another odd column and an upper edge of each sub-pixels in an even column is aligned with that of a sub-pixel in another even column, and a pre-set length of longitudinal offset is provided between sub-pixels in odd columns and sub-pixels in even columns; colors of any adjacent sub-pixels are different from each other; light-blocking areas of the grating blocks a partial area of the pixel array. Upon an image being displayed by the pixel array, one sub-pixel can borrow its adjacent sub-pixels or be borrowed by its adjacent sub-pixel so as to allow a display resolution to be greater than a physical resolution to increase PPI of a display device.