Stereoscopic Display Zone Segmentation for Power Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Time-sequential stereoscopic displays require high refresh rates to avoid flicker, leading to increased power consumption and design complexity, as existing methods like black frame insertion and dynamically switching the backlight module necessitate rates higher than 120 Hz to ensure human eyes receive frames at 60 Hz.
Innovation Solution
A stereoscopic display device with a liquid crystal panel divided into three display zones and two light sources, where each zone displays images in different time sequences based on distinct light sources and shielding signals, allowing for efficient image separation without the need for high refresh rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a time sequential 3D display uses a single light source with high refresh rate (above 120 Hz) to avoid flicker, then the stereoscopic image quality is improved, but the power consumption increases and design complexity increases
Solution Approach 1:
The patent divides the display into three distinct display zones (first, second, and third zones) that can be independently controlled. Each zone receives different data voltage signals at different times, allowing the system to display stereoscopic images using multiple light sources at lower refresh rates rather than requiring a single high-speed light source. This segmentation enables asynchronous updating of different display regions, reducing the required refresh rate and power consumption.
Solution Approach 2:
The patent implements dynamic control of light sources and display zones through time-sequential updating. The first and second light sources are enabled at different times, and the display zones are updated in different time sequences. This dynamic, time-multiplexed approach allows the system to achieve stereoscopic display effects without requiring all zones to refresh simultaneously at high speeds, thereby reducing power consumption and design complexity.
2Reliability
If a time sequential 3D display uses a single light source with high refresh rate (above 120 Hz) to avoid flicker, then the stereoscopic image quality is improved, but the device complexity increases
Solution Approach 1:
The patent divides the display into three distinct display zones (first, second, and third zones) that can be independently controlled. Each zone receives different data voltage signals at different times, allowing the system to display stereoscopic images using multiple light sources at lower refresh rates rather than requiring a single high-speed light source. This segmentation enables asynchronous updating of different display regions, reducing the required refresh rate and power consumption.
Solution Approach 2:
The patent implements dynamic control of light sources and display zones through time-sequential updating. The first and second light sources are enabled at different times, and the display zones are updated in different time sequences. This dynamic, time-multiplexed approach allows the system to achieve stereoscopic display effects without requiring all zones to refresh simultaneously at high speeds, thereby reducing power consumption and design complexity.
3Productivity
If the liquid crystal panel updates frames medially with row-by-row scanning, then the display can show different images to left and right eyes, but the column numbers distributed by left- and right-eye signals become misaligned between upper and lower parts
Solution Approach 1:
The patent divides the display into three distinct display zones (first, second, and third zones) that can be independently controlled. Each zone receives different data voltage signals at different times, allowing the system to display stereoscopic images using multiple light sources at lower refresh rates rather than requiring a single high-speed light source. This segmentation enables asynchronous updating of different display regions, reducing the required refresh rate and power consumption.
Solution Approach 2:
The patent applies shielding signals to specific display zones before updating their content. The first shielding unit and second shielding unit are activated in specific sequences to prevent crosstalk between left and right eye signals during the row-by-row scanning process. This preliminary shielding action ensures that even as frames are updated medially, the signal alignment remains consistent and crosstalk is minimized.
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 solution maintains image resolution without decreasing it and reduces power consumption by allowing the display to operate at lower refresh rates, minimizing crosstalk and design complexity while enabling effective 3D image presentation.
Implementation Method 1
a first light source group for generating first light in response to a first enabling signal; a second light source group for generating second light in response to a second enabling signal
Implementation Method 2
a barrier comprising a first shielding unit and a second shielding unit, the first shielding unit enabling in response to a first shielding signal and the second shielding unit enabling in response to a second shielding signal
Implementation Method 3
a display unit comprising a first display zone, a second display zone, and a third display zone, each display zone for showing an image in response to a first data voltage signal or a second data voltage signal
Data Source
AI summary
A first display zone and a second display zone are displayed based on a first light source group, which corresponds to a first voltage data signal; and then the second display zone and a third display zone are displayed based on light for a second light source group, which corresponding to a second voltage data signal. The first light source group and the second light source group illuminate the display zones alternatively. Each display zone is fed with either a first data voltage signal or a second data voltage signal. While the first data voltage signal is updating each display zone in sequence, the second data voltage signal starts updating the first display zone when the first voltage signal is updating the third display zone.