Dual View Display Light Refracting Element Cross-Talk Reduction
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Solution Overview
Problem
Conventional dual view display devices have a large central cross-talking region, which compromises the viewing experience by allowing unintended image overlap, even as they attempt to maintain better left and right viewing angles.
Innovation Solution
Incorporating a light refracting element next to the parallax barrier, which overlays light-transmitting regions, reduces the central cross-talking region while preserving the left and right viewing angles, thereby enhancing the display effect and viewer experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the left and right viewing angles are increased, then the viewing experience is improved, but the central cross-talking region becomes larger
Solution Approach 1:
The patent divides the light-transmitting regions into two functional zones: upper regions without light refracting elements that maintain wide viewing angles, and lower regions with light refracting elements that reduce cross-talk. This segmentation allows different parts of the same structure to serve different optical functions, resolving the contradiction between viewing angle and cross-talk reduction.
Solution Approach 2:
The patent applies light refracting elements selectively in specific locations (lower portions of light-transmitting regions) rather than uniformly across the entire display. This local modification changes the optical properties only where needed to reduce cross-talk, while preserving the original viewing angle characteristics in other areas.
2Manufacturing precision
If the central cross-talking region is reduced, then the image separation is improved, but the left and right viewing angles may be compromised
Solution Approach 1:
The patent segments the light-transmitting regions into upper and lower portions with different optical functions. The upper portions maintain wide viewing angles while the lower portions with light refracting elements provide precise image separation. This segmentation enables both requirements to be satisfied simultaneously in different spatial zones.
Solution Approach 2:
The light refracting elements act as intermediary components that selectively redirect light paths in the lower regions. These elements serve as a mediator between the display panel and the viewer's eye, precisely controlling which images reach which viewing zones without affecting the overall viewing angle range.
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 significantly minimizes the central cross-talking region, ensuring that viewers in different areas see distinct images without compromising the larger viewing angles, thus improving the overall display effect and visual experience.
Implementation Method 1
a light refracting element; wherein the light refracting element is provided on a side of at least one of light-transmitting regions which is away from the display panel, the light refracting element at least overlays the at least one of light-transmitting regions
Data Source
AI summary
A dual view display device is disclosed. The dual view display device includes: a display panel including a plurality of first display regions and a plurality of second display regions, each of the first display regions and each of the second display regions are alternately arranged along an arbitrary direction of the display panel; a parallax barrier disposed on a light emitting side of the display panel and including a plurality of light-transmitting regions and a plurality of light-shielding regions, each of the light-transmitting regions and each of the light-shielding regions are alternately arranged along a direction identical with the arbitrary direction of the display panel; and a light refracting element, wherein the light refracting element is provided on a side of at least one of the light-transmitting regions which is away from the display panel, the light refracting element at least overlays the light-transmitting region.