Autostereoscopic 3D Display Light Source Synchronization
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Solution Overview
Problem
Current autostereoscopic 3D display apparatuses experience picture quality degradation in 2D mode operation due to the presence of a 3D light source, which is not actively managed, leading to pattern recognition and reduced image quality.
Innovation Solution
An autostereoscopic 3D display apparatus with an image analyzer that calculates pulse width modulation (PWM) values for both 2D and 3D light sources based on image analysis, allowing the controller to dynamically adjust and synchronize their operation in 2D mode to prevent pattern recognition and maintain image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the 3D light source is turned off in 2D mode to avoid pattern recognition, then picture quality degradation is prevented, but the device complexity increases due to separate light source configurations
Solution Approach 1:
The patent combines the 2D light source and 3D light source into a single integrated light source unit. This light source can operate in different modes (2D mode, 3D mode, and hybrid mode) by adjusting the emission characteristics of the same physical component, thereby eliminating the need for separate light source configurations while maintaining picture quality in 2D mode.
Solution Approach 2:
The light source is designed to dynamically switch between different operational states. In 2D mode, the light source emits uniform light without patterned structures; in 3D mode, it activates the light guide plate and patterned layer. This dynamic adaptability allows the same light source to serve multiple functions without requiring separate dedicated components for each mode.
2Adaptability or versatility
If separate 2D and 3D light sources are used, then both 2D and 3D image generation capabilities are achieved, but the device complexity increases and picture quality degrades in 2D mode due to the presence of the 3D light source structure
Solution Approach 1:
The integrated light source is designed as a universal component that can perform both 2D image generation and 3D image generation functions. By controlling the emission characteristics of the same light source, the system achieves multi-functionality without requiring separate dedicated light sources for each mode, thereby avoiding picture quality degradation in 2D mode while maintaining adaptability.
3Device complexity
If the 3D light source structure is present in 2D mode, then the device structure is simplified, but pattern recognition occurs and picture quality degrades
Solution Approach 1:
The light source structure incorporates dynamic control mechanisms that allow it to change its operational state based on the display mode. In 2D mode, the system dynamically adjusts the light source to emit uniform light and suppresses the patterned light guide plate activation, thereby preventing pattern recognition while maintaining a simplified physical 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
Prevents pattern recognition and maintains picture quality by synchronizing the 2D and 3D light sources in 2D mode operation, ensuring a seamless transition and improved image display without degradation.
Implementation Method 1
a 2D light source configured to generate a 2D image
Implementation Method 2
a 3D light source configured to generate a 3D image
Implementation Method 3
The image analyzer may calculate a pulse width modulation (PWM) value of the 3D light source through average brightness or histogram analysis of the input image
Data Source
AI summary
An autostereoscopic 3D display apparatus, and a light source driving method thereof, includes an image receiver configured to receive an image, an image analyzer configured to analyze the image input through the image receiver, a 2D light source configured to generate a 2D image, a 3D light source configured to generate a 3D image, and a controller configured to drive the 2D light source and the 3D light source based on a result analyzed through the image analyzer in response to the display apparatus being operated in a 2D mode.