Time-Division Stereoscopic Display for Depth and Resolution
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Solution Overview
Problem
Existing stereoscopic display technologies face limitations in achieving high resolution and depth while maintaining a wide viewing angle, particularly in light field displays, due to the theoretical resolution limits and reduced light efficiency in methods without glasses.
Innovation Solution
A stereoscopic display apparatus and method utilizing a combination of a lenticular sheet and cylinder lens array with time-division light source control, allowing for high-definition and parallax display methods in different areas to enhance depth perception and resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If light field technology is used for stereoscopic display, then depth perception is improved, but resolution is limited by theoretical constraints
Solution Approach 1:
The display is divided into multiple local display regions, each with its own light source and lens array. This segmentation allows each region to independently optimize for both depth perception (light field) and resolution (high-definition display), avoiding the theoretical resolution limits of conventional light field technology while maintaining depth perception capabilities.
Solution Approach 2:
Different display methods are applied to different areas: high-definition display method for first local display regions and light field display method for second local display regions. This local quality approach allows the system to achieve high resolution where needed while maintaining depth perception in other areas, resolving the contradiction between resolution and depth perception.
2Loss of energy
If time-division light source control is used, then light efficiency is improved, but device complexity increases
Solution Approach 1:
Multiple light sources are controlled through time-division multiplexing, where each light source is activated in alternating time slots. This periodic action allows multiple light sources to share a single control circuit, improving light efficiency by directing light precisely where needed while avoiding the complexity of separate control circuits for each light source.
Solution Approach 2:
A single control circuit performs multiple functions by controlling different light sources at different time intervals. This multi-functionality approach improves light efficiency while minimizing device complexity, as the same circuit handles multiple light sources through time-division control rather than requiring dedicated circuits for each source.
3Adaptability or versatility
If multiple light sources are positioned on rear surface of each second cylinder lens, then viewing angle is improved, but device complexity increases
Solution Approach 1:
Multiple light sources are positioned on the rear surface of each second cylinder lens, utilizing the depth dimension (distance from display surface) to achieve wide viewing angles. This spatial arrangement in three dimensions allows light to be directed to different viewing angles without increasing planar complexity, as the light sources are distributed along the optical axis rather than requiring complex lateral arrangements.
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 enables clearer three-dimensional image display with improved resolution and depth perception by optimizing light emission and display content in specific areas, reducing crosstalk and enhancing the viewing experience.
Implementation Method 1
a first lens array positioned on a rear surface of the display and including a plurality of first cylinder lenses arranged at a preset pitch
Implementation Method 2
a diffusion sheet positioned between the display and the first lens array and positioned at a position including a focal point of each first cylinder lens
Implementation Method 3
a second lens array positioned on a rear surface of the first lens array and including a plurality of second cylinder lenses arranged at a pitch that is wider than the pitch of the first cylinder lenses
Implementation Method 4
a diffusion sheet positioned between the display and the first lens array and positioned at a position including a focal point of each first cylinder lens
Implementation Method 5
a plurality of light sources positioned on a rear surface of each second cylinder lens, and a light source driver configured to drive the plurality of light sources illuminating the elemental image
Data Source
AI summary
The disclosure is to optimize and display a clear stereoscopic image while securing a depth. A stereoscopic display apparatus is provided. The stereoscopic display apparatus includes a display, a display driver configured to display an elemental image of a stereoscopic image on the display, a light source controller including a first lens array positioned on a rear surface of the display and including a plurality of first cylinder lenses arranged at a preset pitch, a second lens array positioned on a rear surface of the first lens array and including a plurality of second cylinder lenses arranged at a pitch that is wider than the pitch of the first cylinder lenses, a plurality of light sources positioned on rear surfaces of the second cylinder lenses, and a diffusion sheet positioned between the display and the first lens array and positioned at a position including a focal point of each first cylinder lens, and a light source driver configured to drive a line light source illuminating the elemental image.