Autostereoscopic 3D Display Black Matrix Shape Optimization
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Solution Overview
Problem
Autostereoscopic 3D display devices face challenges in minimizing luminance differences between views, leading to viewer discomfort due to 3D crosstalk and inadequate depth perception, which existing methods like view overlap fail to adequately address without increasing crosstalk.
Innovation Solution
The implementation of a 3D display device with a display panel and a 3D optical plate where the 3D optical plate is positioned to control the display of multiple view images as separate views, with the black matrix openings having different shapes and orientations to minimize luminance differences without view overlap, thereby reducing 3D crosstalk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the view overlap method is used to decrease luminance difference between views, then luminance uniformity is improved, but 3D crosstalk increases
Solution Approach 1:
The patent applies local quality by making the black matrix openings have different shapes for different pixels. Specifically, pixels at different positions (edge vs center) have black matrix openings with different shapes tailored to their local requirements, allowing each region to optimize its light transmission characteristics and reduce luminance differences without causing view overlap
Solution Approach 2:
The patent employs asymmetry by designing asymmetric black matrix opening shapes for different pixels. The openings are not uniform circles or squares but have asymmetric shapes that are specifically designed for each pixel's position, enabling precise control of light distribution to eliminate luminance differences while maintaining clear view separation
2Ease of manufacture
If the black matrix openings have uniform shapes, then manufacturing is simplified, but luminance differences occur within each pixel due to electrode arrangement
Solution Approach 1:
The patent applies local quality by making the black matrix openings have different shapes for different pixels. Specifically, pixels at different positions (edge vs center) have black matrix openings with different shapes tailored to their local requirements, allowing each region to optimize its light transmission characteristics and reduce luminance differences without causing view overlap
Solution Approach 2:
The patent changes the shape parameter of the black matrix openings based on pixel position. Instead of using a single uniform shape, the opening shape is varied according to the specific location of each pixel on the display panel, enabling optimization of light transmission for each local region
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 approach effectively minimizes luminance differences within and between views, enhancing viewer comfort and depth perception in 3D images by reducing 3D crosstalk while maintaining uniform luminance across the display.
Implementation Method 1
a 3D optical plate disposed on a front surface or a rear surface of the display panel to perform control so that N (where N is a natural number equal to or more than two) number of view images displayed by the plurality of pixels are displayed as N number of views on a viewing zone
Data Source
AI summary
The disclosure relates to an autostereoscopic 3D display device for minimizing luminance difference in a view as well as a luminance difference between views. The 3D display device includes a display panel including pixels and a black matrix including openings exposing portions of the pixels, each of the pixels including a pixel electrode including a plurality of first fingers and a common electrode including a plurality of second fingers disposed between the first fingers, and a 3D optical plate disposed on a front surface or a rear surface of the display panel. At least two adjacent to each other in a horizontal direction have different shapes exposed by the plurality of openings.