Stereoscopic Display Barrier Reflection Suppression
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional autostereoscopic image display devices suffer from decreased image quality due to light reflection from the display panel, which affects the perception of stereoscopic effects.
Innovation Solution
Incorporating a polarizing plate and a phase retarder between the display panel and the barrier, with the phase retarder being a ¼ wavelength plate and positioned at a 45° angle to the polarizing plate, to circularly polarize light and minimize reflection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a barrier with liquid crystal layer is used to separate left-eye and right-eye images, then stereoscopic effect is achieved, but light reflection from the display panel decreases image quality
Solution Approach 1:
The patent introduces a polarizing plate and a 1/4 wavelength phase retarder as intermediary components between the display panel and the barrier. The polarizing plate converts linearly polarized light from the display panel into circularly polarized light through the phase retarder, which then interacts with the barrier's liquid crystal cells to achieve both stereoscopic separation and reflection suppression, as the circularly polarized reflected light cannot pass back through the barrier structure
Solution Approach 2:
The patent changes the polarization state parameter of light from linear to circular by introducing the 1/4 wavelength phase retarder at a 45° angle to the polarizing plate. This parameter change in light polarization enables the system to simultaneously achieve stereoscopic image separation and suppress reflected light, as the circularly polarized reflected light is blocked by the barrier structure
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 effectively suppresses light reflection, enhancing image quality by ensuring that reflected light is absorbed rather than transmitted to the viewer, thereby improving the stereoscopic image display experience.
Implementation Method 1
an internal polarizing plate placed between the display panel and the barrier
Implementation Method 2
a phase retarder placed between the internal polarizing polarizing plate and the display panel. Light that has been linearly polarized through the internal polarizing plate may be circularly polarized through the phase retarder
Data Source
AI summary
A stereoscopic image display device includes a display panel configured to display an image, a barrier placed over the display panel and configured to include a plurality of liquid crystal cells each of which is selectively driven to become a transparent cell or an opaque cell, a polarizing plate placed between the display panel and the barrier, and a phase retarder placed between the internal polarizing plate and the display panel.