Variable Parallax Barrier Module for 3D Display Brightness
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Time-multiplexed stereoscopic image display techniques face limitations in image brightness due to the light output time, liquid crystal parallax barrier transmittance, and aperture ratio, affecting the quality of 3D displays.
Innovation Solution
A display apparatus with a variable parallax barrier module that forms different parallax barrier patterns during different display periods, featuring partially overlapping light-transmissive regions to enhance image brightness, comprising a display module, a variable parallax barrier module, and a control unit that alternately arranges light-transmissive and light-shielding regions along an arrangement direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a switchable parallax barrier is used to achieve beam splitting effect in time-multiplexed stereoscopic display, then stereoscopic display effect is achieved, but image brightness is limited due to light output time, liquid crystal parallax barrier transmittance and aperture ratio
Solution Approach 1:
The patent applies the dynamics principle by making the parallax barrier movable and adjustable. The barrier can dynamically change its position and configuration to optimize light transmission. Specifically, the barrier is designed to be movable along the optical axis and can adjust its tilt angle, allowing it to adapt to different display requirements and maximize brightness while maintaining the beam splitting function for stereoscopic display.
Solution Approach 2:
The patent implements parameter changes by modifying the physical parameters of the parallax barrier system. This includes changing the barrier's position, tilt angle, and potentially the aperture ratio. By dynamically adjusting these parameters, the system can optimize the balance between beam splitting effectiveness and light transmission, thereby improving image brightness without sacrificing the stereoscopic display capability.
2Illumination intensity
If light-transmissive regions are increased to improve brightness, then image brightness improves, but the beam splitting effect may be compromised
Solution Approach 1:
The movable and adjustable design of the parallax barrier allows dynamic optimization of the balance between light transmission and beam splitting. By adjusting the barrier's position and angle, the system can achieve optimal performance where sufficient light passes through while maintaining effective beam splitting for stereoscopic display.
Solution Approach 2:
The system dynamically changes parameters such as the barrier's position, angle, and effective aperture ratio to optimize the trade-off between brightness and beam splitting reliability. This allows the system to adapt to different viewing conditions and maintain both high brightness and reliable beam splitting functionality.
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 the overall brightness of stereo images by optimizing the proportion of light-transmissive regions in parallax barrier patterns, improving the quality and brightness of 3D displays without reducing image resolution.
Implementation Method 1
each of the parallax barrier patterns comprises a plurality of light-transmissive regions and a plurality of light-shielding regions alternately arranged along an arrangement direction
Data Source
AI summary
A display apparatus including a display module, a variable parallax barrier module, and a control unit is provided. The display module is configured to provide a light beam. The variable parallax barrier module is disposed on a transmission path of the light beam. The variable parallax barrier module respectively forms a plurality of different parallax barrier patterns during different display periods of a frame time. Each of the parallax barrier patterns includes a plurality of light-transmissive regions and a plurality of light-shielding regions alternately arranged along an arrangement direction. In all of light-transmissive regions of the parallax barrier patterns, any two adjacent light-transmissive regions partially overlap each other. The control unit enables a plurality of display images displayed by the display module during the different display periods to respectively correspond to the parallax barrier patterns. A variable parallax barrier module and a displaying method are also provided.