VR Display Gate Control for Variable Frame Rate
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current virtual reality devices face limitations in enhancing the frame rate of images displayed, which affects the quality of the virtual reality experience provided to users.
Innovation Solution
The implementation of a display device with a focus area setting circuit and gate control circuit that adjusts the number of gate lines supplied with a scan signal based on focus area boundary information, allowing for varying driving schemes in different areas of the display panel to increase frame rate without degrading image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the frame rate of the display device is increased to enhance virtual reality experience quality, then the virtual reality experience quality is improved, but the device complexity increases due to the need for focus area setting circuits and gate control circuits
Solution Approach 1:
The display panel is divided into multiple focus areas based on user gaze direction, with each area having different gate line driving schemes. The gate control circuit segments the scan signal delivery by controlling different numbers of gate lines in different horizontal periods for different focus areas, enabling variable frame rates without requiring complete system redesign
Solution Approach 2:
The gate control circuit dynamically adjusts the number of gate lines simultaneously supplied with scan signals based on focus area boundary information and horizontal period timing. This dynamic control allows the system to optimize frame rate for different display regions without fixed hardware constraints, resolving the contradiction between productivity and device complexity
2Productivity
If different driving schemes are applied to different areas of the display panel to increase frame rate, then the frame rate is improved, but the image quality may be degraded in certain areas
Solution Approach 1:
Different focus areas receive different gate line driving schemes tailored to their specific requirements. The gate control circuit applies higher frame rates to areas where the user gaze indicates higher importance, while maintaining acceptable frame rates in less critical areas, thus optimizing the balance between overall productivity and local image quality
Solution Approach 2:
The focus area setting circuit receives focus area setting information and focus area reference line information to determine focus area boundary information. This feedback mechanism allows the gate control circuit to adjust the scan signal delivery strategy based on real-time gaze data, ensuring image quality is maintained in the user's focus area while optimizing frame rate globally
Data Source
AI summary
A display panel sets a focus area per frame, based on focus area setting information and focus area reference line information received from the outside, control the number of gate lines simultaneously driven according to the focus area, and display a rendered image per focus area, thereby preventing the quality degradation of the image perceived by the user and increasing the frame rate of the display panel, and enhancing the quality of the virtual reality experience provided by the virtual reality device.