Pixel Array for Glassless 3D Display with Alternating Rows
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Solution Overview
Problem
Current glassless three-dimensional display technologies face challenges in providing an enhanced 3D experience due to limitations in resolution and crosstalk, particularly in mobile handheld devices, where the parallax barrier method can result in reduced depth perception and inconvenient viewing angles.
Innovation Solution
A pixel array with alternately arranged odd-numbered and even-numbered pixel rows, each comprising three sub-pixels of different colors, combined with a light splitting device forming light shielding bars, and an eye tracking method that adjusts pixel columns based on viewer movement to optimize 3D image projection and mitigate crosstalk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a parallax barrier is used in glassless 3D display, then light can be split to display left and right eye images, but resolution is reduced and crosstalk occurs
Solution Approach 1:
The display screen is segmented into odd-numbered and even-numbered pixel rows, with each row type dedicated to displaying images for one eye. The light splitting device is segmented into corresponding light shielding bars that align with these row segments, enabling spatial separation of left and right eye images without compromising overall resolution
Solution Approach 2:
Different regions of the display (odd rows vs even rows) are assigned different functional qualities - odd rows display left-eye images while even rows display right-eye images. The light splitting device similarly has different regions (light shielding bars at odd/even row positions) with different optical properties to direct light appropriately to each eye
2Ease of operation
If light shielding bars are arranged at intervals, then 3D effect is achieved, but viewing angle is limited
Solution Approach 1:
The light shielding bars are arranged not only in the row direction but also extend in the column direction, creating a two-dimensional light splitting pattern. This dimensional extension allows light to be directed to both eyes across a wider angular range, improving viewing angle while maintaining 3D effect
3Reliability
If pixel rows are alternately arranged for left and right eye images, then crosstalk is reduced, but device complexity increases
Solution Approach 1:
The alternately arranged pixel rows serve multiple functions: they spatially separate left and right eye images to reduce crosstalk, maintain standard display resolution, and work seamlessly with the light splitting device. The same pixel structure achieves both image display and 3D separation without requiring additional complex components
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration enhances 3D resolution, reduces crosstalk, and extends the visual angle by dynamically adjusting pixel structures and light shielding to improve the overall 3D experience on mobile devices.
Implementation Method 1
a light splitting device, configured to form light shielding bars arranged at intervals in a 3D mode, to respectively project light for displaying a left-eye image and light for displaying a right-eye image into a left eye and a right eye of a viewer
Data Source
AI summary
A pixel array, a display device and a display method are provided. The pixel array comprises a plurality of pixel rows, each pixel row includes repetitive units sequentially arranged along a row direction, and each repetitive unit includes three sub-pixels of different colors (B, R and G). Odd-numbered pixel rows and even-numbered pixel rows are alternately arranged along a column direction; in an odd-numbered pixel row and an even-numbered pixel row adjacent to each other, a minimum distance between center points of sub-pixels of a same color along the row direction is equal to 1 to 1.5 times a width of the sub-pixel, and the width of the sub-pixel is a size of the sub-pixel along the row direction. The pixel array, the display device and the display method can achieve a high resolution by 2D pixel rendering; and in a 3D mode, 3D optical crosstalk can be mitigated by increasing a buffer sub-pixel.