Lens and Liquid-Crystal Barrier Display for Reducing Multiple Images
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Solution Overview
Problem
Existing display devices face issues with multiple images due to light from adjacent pixels being misaligned and mixed, leading to a reduction in image reality and clarity.
Innovation Solution
A display device configuration with a lens element and a barrier element, where the lens element limits light extraction direction and the barrier element includes a liquid crystal layer with light-shielding regions, ensuring that light from each pixel is directed correctly and minimizing interference from neighboring pixels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If light extraction direction is not limited, then light intensity is high, but multiple images occur due to light mixing from adjacent pixels
Solution Approach 1:
The patent divides the light extraction control into two segments: a lens element that directs light from each pixel in a specific direction, and a barrier element with light-shielding regions that block light from adjacent pixels. This segmentation allows high light intensity to reach the viewer while preventing light mixing that causes multiple images.
Solution Approach 2:
The barrier element introduces local quality variation by providing light-shielding regions at specific positions corresponding to adjacent pixels, while allowing light transmission at aperture regions. This local control enables selective blocking of interfering light without affecting the overall light intensity from the intended pixel.
2Reliability
If a barrier element with light-shielding regions is added, then multiple images are reduced, but device complexity increases
Solution Approach 1:
The patent merges the barrier element with the lens element into a single integrated structure. The barrier element is positioned in the peripheral region of each lens, and both elements work together as a unified optical control unit. This merging reduces the number of separate components and simplifies the overall device structure while maintaining the function of reducing multiple images.
Solution Approach 2:
The barrier element serves multiple functions: it blocks light from adjacent pixels to prevent multiple images, defines aperture regions for light extraction, and integrates with the lens element to form a complete optical control system. This multi-functionality reduces the need for additional separate components.
3Reliability
If light-shielding regions are positioned to overlap lens peripheral regions, then light mixing is minimized, but aperture area is reduced
Solution Approach 1:
The light-shielding regions are positioned to overlap only the peripheral regions of the lenses, not the entire lens area. This partial action is sufficient to block light mixing from adjacent pixels while preserving the central aperture area for light transmission. The shielding is excessive only where needed at the periphery to prevent light interference.
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
The solution enhances image clarity and reality by reducing multiple images, allowing for high brightness and efficient use of light, providing a more realistic stereoscopic viewing experience.
Implementation Method 1
a lens element (LNS) having a plurality of lenses (LX)
Implementation Method 2
a barrier element (BRR) having a liquid crystal element (LCB)
Data Source
AI summary
According to one embodiment, a display device includes a lens element having a plurality of lenses, a barrier element comprising a liquid crystal layer and a display panel, and the lens element is provided between the display panel and the barrier element, the barrier element comprises a first substrate, a second substrate, the liquid crystal layer is provided between the first substrate and the second substrate. The first substrate includes a plurality of first electrodes, an insulating layer covering the first electrodes, and a plurality of second electrodes provided on the insulating layer, and the second substrate includes a third electrode.