Naked-eye 3D Display Pixel Array with Offset Sub-pixel Groups
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Solution Overview
Problem
Naked-eye 3D display technologies suffer from reduced image resolution due to light blocking designs, which often halve the number of pixels per inch (PPI), compromising the 3D viewing experience.
Innovation Solution
A pixel array with sub-pixel groups in odd and even columns offset by a determined distance, where each sub-pixel distorts into a parallelogram shape, improving crosstalk between views and enhancing the 3D display effect by using a display driving device that determines luminance based on color components within sampling areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If naked-eye 3D light blocking design is used, then 3D display function is achieved, but image resolution is reduced by half
Solution Approach 1:
The patent transitions from traditional rectangular pixel arrangement to a tilted pixel array where pixels are arranged at an angle (e.g., 30 degrees) relative to the horizontal direction. This dimensional change in pixel orientation allows the display to achieve 3D effects without the conventional light blocking approach, thereby maintaining image resolution while enabling 3D functionality.
Solution Approach 2:
The patent employs asymmetric pixel shapes (e.g., triangular pixels instead of rectangular) and asymmetric arrangement patterns where odd and even columns have different tilt directions. This asymmetry enables the display to differentiate between left and right eye views without requiring traditional light blocking, thus preserving resolution while achieving 3D display capability.
2Manufacturing precision
If virtual display technology with pixel sharing is used, then visual resolution is improved, but sub-pixel formation difficulty increases in OLED production
Solution Approach 1:
The patent divides the pixel array into distinct columns with different tilt angles and orientations. Each column segment has specific sub-pixel arrangements (e.g., odd columns tilted one way, even columns tilted the other), allowing independent optimization of each segment while maintaining overall high resolution. This segmentation simplifies the manufacturing process compared to uniform pixel sharing approaches.
Solution Approach 2:
Different regions of the pixel array have different local characteristics - odd columns have sub-pixels arranged with one tilt direction while even columns have the opposite tilt. This local quality variation enables each region to be optimized for its specific function, making sub-pixel formation more manageable in OLED production while achieving high overall visual resolution.
3Object-affected harmful factors
If sub-pixel groups are offset in column direction, then crosstalk between views is improved, but pixel arrangement complexity increases
Solution Approach 1:
The patent uses asymmetric offset arrangements where odd-numbered columns are shifted in one direction and even-numbered columns are shifted in the opposite direction. This asymmetric pattern creates clear separation between left and right eye pixel groups, effectively reducing crosstalk. The repeating alternating pattern, while complex in detail, follows a simple generative rule that manages the overall complexity.
Solution Approach 2:
The patent extracts and separates the sub-pixel groups for left and right eyes into distinct spatial locations through column offsetting. By physically separating the pixel groups that serve different eyes, the design eliminates the need for complex software-based crosstalk compensation, reducing overall system complexity despite the intricate pixel arrangement.
Data Source
AI summary
A pixel array, a display driving device and a driving method thereof, and a display device are provided. The pixel array includes multiple columns of sub-pixel groups, each column of sub-pixel groups includes M×N sub-pixels arranged along a column direction, wherein the sub-pixel groups in odd numbered columns and the sub-pixel groups in even numbered columns offset in the column direction by ½ of a width of each sub-pixel in the column direction; each sub-pixel in each column of sub-pixel groups distorts in the column direction, and a distortion direction of the sub-pixel groups in the odd numbered columns is opposite to that of the sub-pixel groups in the even numbered columns. The crosstalk between the two views during 3D image displaying is improved by distortion of sub-pixels. A rendering method of the sub-pixels and 3D display are combined through the algorithm design, and the virtual resolution for each view is increased by algorithm compilation of 3D input signals, so as to make the display effect of 3D better.