Multi-View Display EDID Matching for Distortion-Free Layouts
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Solution Overview
Problem
Display devices with multi-view functionality often experience issues such as blank areas or image distortion when displaying images from multiple sources due to mismatched resolutions, leading to compromised user viewing comfort.
Innovation Solution
The display device modifies the Extended Display Identification Data (EDID) to match the display area sizes, transmitting the modified EDID to the image source devices to adjust image resolutions accordingly, ensuring seamless and undistorted simultaneous display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the display device reduces the resolution of image data to match the display area width, then the display area is fully utilized, but blank areas appear above and below the image
Solution Approach 1:
The patent modifies the EDID resolution parameters to match the actual display area dimensions. By changing the resolution parameters in EDID from the original 2560*1440 to the actual display area resolution (e.g., 1920*1080 for left area, 640*405 for right area), the image source device automatically outputs images with matching resolutions, eliminating both blank areas and distortion while fully utilizing the display area.
2Loss of information
If the display device adjusts the image size to fill the display area, then blank areas are eliminated, but image distortion occurs
Solution Approach 1:
The patent changes the resolution parameters in EDID to exactly match the display area dimensions. This causes the image source device to output images with resolutions that perfectly fit the display area (e.g., 1920*1080 for left area, 640*405 for right area), eliminating the need for any image scaling or stretching operations that would cause distortion.
3Manufacturing precision
If the display device uses the original EDID resolution, then image quality is maintained, but the display area cannot be fully utilized
Solution Approach 1:
The patent modifies the EDID resolution parameters to match the actual display area dimensions. By updating the resolution information in EDID to reflect the true display area (e.g., 1920*1080 instead of 2560*1440 for the left area), the system maintains full display area utilization while preserving image quality through proper resolution matching without requiring quality-degrading scaling operations.
Data Source
AI summary
The present invention provides a control method of a display device, wherein the control method includes the steps of: connecting with a first image source device, transmitting an original Extended Display Identification Data (EDID) to the first image source device, and receiving first image data from the first image source device; connecting with a second image source device, and receiving second image data from the second image source device, wherein the first image data and the second image data are displayed on the display device simultaneously, and the first image data and the second image data are displayed on a first display area and a second display area of the display device, respectively; modifying the original EDID to generate a modified EDID according to a size/resolution of the first display area; and providing the modified EDID to the first image source device.