Stereoscopic Display Region Segmentation for Power Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional stereoscopic display apparatuses experience increased power consumption and drive frequency due to unnecessary light emission when displaying stereoscopic video, as they require frequent switching between right-eye and left-eye images, leading to inefficiencies in power usage and display performance.
Innovation Solution
The method involves dividing the display unit into two regions, where image data is alternately written and displayed between these regions, reducing the drive frequency and power consumption by ensuring that only one region is actively displaying images at a time, while maintaining equivalent vertical resolution and luminance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If stereoscopic video is displayed by alternately displaying right-eye and left-eye video signals with synchronized shutter switching, then stereoscopic recognition is achieved, but drive frequency increases and power consumption increases due to unnecessary light emission
Solution Approach 1:
The display unit is divided into two separate display regions (first display region and second display region). Image data for the right eye is written to one region while the other region displays the left-eye image, and vice versa. This segmentation allows independent control of each region's display state, enabling the non-active region to be set to an image-not-displaying state, thereby eliminating unnecessary light emission and reducing power consumption while maintaining stereoscopic recognition.
Solution Approach 2:
The patent implements periodic switching between two display modes: in one period, the first display region displays image data while the second display region is in image-not-displaying state; in the next period, the roles are reversed. This periodic action synchronizes with the shutter switching to ensure that each eye receives its corresponding image data at the appropriate time, maintaining stereoscopic recognition while reducing overall power consumption through controlled light emission.
2Reliability
If stereoscopic video is displayed by dividing video signals into right-eye and left-eye signals and displaying them alternately, then stereoscopic effect is achieved, but drive frequency increases
Solution Approach 1:
By dividing the display unit into two independent display regions that can be controlled separately, the patent enables simultaneous writing and display operations in different regions. This segmentation allows the system to process and display right-eye and left-eye image data in an interleaved manner without requiring sequential switching at high frequency, thereby reducing the drive frequency while maintaining the stereoscopic effect.
Solution Approach 2:
The patent writes image data to a display region in advance before it needs to be displayed. Specifically, while one display region is displaying image data for one eye, the other display region is being written with image data for the other eye. This preliminary action allows the system to prepare the next frame of data without interrupting the current display, reducing the required drive frequency while maintaining the stereoscopic effect.
3Object-affected harmful factors
If video signals are displayed on a per-scanning line basis to reduce flicker, then flicker is reduced, but power consumption increases due to inability to collectively display or hide images
Solution Approach 1:
The patent segments the display unit into two large display regions (first and second display regions, each comprising multiple rows) rather than controlling individual scanning lines. This segmentation enables collective control of entire regions, allowing the system to set both regions to image-not-displaying state simultaneously when needed, thereby reducing power consumption while still maintaining acceptable flicker performance through the regional rather than line-by-line control approach.
Solution Approach 2:
The patent merges multiple scanning lines into larger display regions for collective control. By combining the control of multiple rows into unified display regions, the system can simultaneously manage the display state of entire regions, enabling collective hiding of images when both eyes need to be blocked. This merging approach reduces power consumption compared to per-line control while maintaining flicker reduction through synchronized regional switching.
Data Source
AI summary
A stereoscopic display includes an image displayer. The image displayer includes a display that is configured to sequentially display a right-eye image and a left-eye image. The display includes a first region that includes first rows and a second region that includes second rows. A method of driving the stereoscopic display includes sequentially repeating: writing first image data to the second region when the first region is in an image displaying state; setting the second region to the image displaying state and the first region to an image not-displaying state after the image data is written to the second region; writing second image data to the first region when the second region is in the image displaying state; and setting the first region to the image displaying state and the second region to the image not-displaying state after the second image data is written to the first region.