Barrel Pixel Array for VR Display Distortion Correction
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Solution Overview
Problem
Conventional VR devices suffer from image distortion due to their optical design, which is corrected using resource-intensive image processing algorithms, leading to increased power consumption and computational complexity.
Innovation Solution
A display panel with a pixel array arranged in a barrel or pillow-like configuration, where pixel coordinates and sizes are transformed based on a distortion factor to counteract lens-induced distortions, eliminating the need for real-time image processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If image processing algorithms are used to correct distortion, then image quality is improved, but power consumption and computational complexity increase
Solution Approach 1:
The patent applies preliminary action by pre-calculating and pre-storing distortion correction parameters in the display panel before actual image display. The pixel array is pre-configured with barrel or pillow-like arrangement that compensates for optical distortion, eliminating the need for real-time computational correction and thus reducing power consumption while maintaining image quality.
Solution Approach 2:
The patent replaces the computational/mechanical image processing system with an optical/geometric solution. Instead of using algorithms to correct distortion in software, the display panel uses a physically arranged pixel array that inherently compensates for optical distortion, substituting computational complexity with geometric configuration.
2Measurement precision
If image processing algorithms are used to correct distortion, then image quality is improved, but computational complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-calculating and pre-storing distortion correction parameters in the display panel before actual image display. The pixel array is pre-configured with barrel or pillow-like arrangement that compensates for optical distortion, eliminating the need for real-time computational correction and thus reducing power consumption while maintaining image quality.
Solution Approach 2:
The patent replaces the computational/mechanical image processing system with an optical/geometric solution. Instead of using algorithms to correct distortion in software, the display panel uses a physically arranged pixel array that inherently compensates for optical distortion, substituting computational complexity with geometric configuration.
3Ease of manufacture
If conventional pixel arrangement is used, then manufacturing is simple, but image distortion occurs
Solution Approach 1:
The patent applies local quality by making different regions of the display panel have different pixel densities and arrangements. The pixel array uses barrel or pillow-like configuration where pixel spacing varies across different regions (central vs. peripheral areas), allowing each region to be optimized for its specific optical characteristics and to compensate for local distortion effects.
Solution Approach 2:
The patent applies asymmetry by using a non-uniform pixel arrangement where pixels are not evenly spaced across the display panel. The barrel or pillow-like configuration creates asymmetric pixel distribution that mirrors and compensates for the symmetric optical distortion introduced by the lens, thereby correcting the distortion without requiring complex processing.
Data Source
AI summary
Embodiments of the disclosure provide a display panel, a display device and a method for driving the display panel. The display panel includes a substrate and a pixel array disposed on the substrate and comprising M*N pixel units, wherein the M*N pixel units are arranged in a barrel or a pillow-like arrangement, and wherein M and N are positive integers.