Dual-Plane Display Visual Adjustment for Eye Imperfections
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Solution Overview
Problem
Users without corrective eyewear, such as glasses or contact lenses, face difficulties in clearly viewing images on device screens due to eye imperfections like hyperopia and myopia, as existing technologies do not effectively compensate for these focal length errors when corrective eyewear is not worn.
Innovation Solution
A method and device with a front and back display plane that adjust image elements based on a visual adjustment factor, including eye correction prescription information, by varying line weight and transparency to set the visual focal length, allowing users to perceive images without corrective eyewear by tricking the eye into focusing on one plane while still viewing the other.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single display plane is used, then the device structure is simple, but users with eye imperfections cannot view images clearly without corrective eyewear
Solution Approach 1:
The display is divided into two distinct planes: a front display plane and a back display plane. Each plane displays image elements with different visual properties (transparency, line weight, size) to compensate for different types of eye imperfections. This segmentation allows the system to provide clear viewing for users with hyperopia, myopia, or presbyopia without requiring corrective eyewear.
Solution Approach 2:
The invention adds a depth dimension to the display by creating a back display plane positioned behind the front display plane. This third-dimensional arrangement allows image elements to be displayed at different apparent distances, enabling the eye to focus on elements that appear to be at the user's far point, thereby compensating for focal length errors.
2Reliability
If image elements are displayed with different transparency and line weight, then focal length correction is achieved, but processing complexity increases
Solution Approach 1:
Different regions of the display (front plane vs. back plane) have different visual properties optimized for specific purposes. The back plane displays image elements with higher transparency and adjusted line weights to create the appearance of distance, while the front plane provides the primary visual output. This local differentiation enables precise focal length correction for different types of eye imperfections.
Solution Approach 2:
The system dynamically adjusts multiple parameters of image elements including transparency, line weight, size, and position based on the type of eye imperfection being compensated. These parameter changes are applied differently to elements on the front and back planes to create the appropriate visual focal length correction.
Data Source
AI summary
A method and a device for displaying images on a display based on a visual adjustment factor related to a user's prescription eyewear are provided. The display includes a front display plane and a back display plane and for each of a plurality of image elements of an image, a respective version of the image element is displayed on each of the front display plane and the back display plane based on the visual adjustment factor such that the respective versions of the image element differ in at least one of line weight and transparency.