Lens Array Display for Diopter Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional display apparatuses, such as liquid crystal displays and plasma displays, lack diopter adjustment functionality, making it inconvenient for users with presbyopia to view images and characters without needing to constantly put on and take off reading glasses, especially in situations like using mobile devices, digital cameras, or car navigation systems.
Innovation Solution
A display method and apparatus that uses a lens array with multiple lenses to display partial images of an original image in corresponding display areas, forming a bundle of beams that create a single virtual image, allowing users to view the image without needing to adjust their eye position relative to the display, thereby eliminating the need for diopter adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional display apparatuses (liquid crystal displays, plasma displays) are used, then the display structure is simple and compact, but the display lacks diopter adjustment functionality, making it inconvenient for users with presbyopia
Solution Approach 1:
The display area is divided into multiple sub-display areas, each corresponding to a specific lens in the lens array. Each sub-display area displays a portion of the overall image, and the lens array segments the light paths to create multiple virtual images at different depths. This segmentation enables diopter adjustment functionality while maintaining a relatively compact structure.
Solution Approach 2:
A lens array is introduced as an intermediary component between the display device and the user's eye. The lens array includes multiple lenses that correspond to different sub-display areas and create virtual images at different depths, enabling diopter adjustment without requiring the display device itself to be complex.
2Adaptability or versatility
If a lens array is added to enable virtual image display and diopter adjustment, then diopter adjustment functionality is achieved, but the device complexity increases
Solution Approach 1:
The lens array is divided into multiple lenses, each corresponding to a specific sub-display area. This segmentation allows each lens to independently form a virtual image from its corresponding sub-display area, enabling diopter adjustment while keeping individual lens components simple and manageable.
Solution Approach 2:
The patent introduces a depth dimension by creating virtual images at different depths through the lens array. This allows the display system to provide diopter adjustment not by moving components in the traditional sense, but by utilizing the depth dimension of virtual image formation, thereby achieving adaptability without proportionally increasing complexity.
3Adaptability or versatility
If multiple lenses and sub-display areas are used to form virtual images, then diopter adjustment and virtual image display are achieved, but the number of pixels required increases
Solution Approach 1:
The overall image is divided into multiple sub-images displayed in different sub-display areas, with each sub-image corresponding to a specific lens. This segmentation allows the total pixel requirement to be distributed across multiple smaller display areas, achieving virtual image display with diopter adjustment while managing the total pixel count through efficient spatial distribution.
Solution Approach 2:
Multiple sub-images displayed in different sub-display areas are merged by the lens array to form a complete virtual image. The lenses combine the light paths from different sub-display areas, allowing the system to achieve high-resolution virtual image display with diopter adjustment while utilizing the existing pixel resources efficiently across the segmented display areas.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables users to view a virtual image in focus at a distance, reducing eye strain and eliminating the need for reading glasses, as the display apparatus can be designed to be compact and efficient with fewer required pixels, while maintaining high resolution and ease of use.
Implementation Method 1
a lens array including a plurality of lenses... the lenses form virtual images of the respective partial images displayed in the respective display areas respectively
Implementation Method 2
displaying partial images of an original image in the display areas respectively... forming a bundle of beams by beams respectively emergent from the plurality of lenses equivalently
Data Source
AI summary
There is provided a practically useful display method that allows viewers to see in-focus images easily. The method includes the steps of providing a lens array including a plurality of lenses, providing display areas at least one of which corresponds to each of the plurality of lenses, displaying partial images of an original image in the display areas respectively, the partial images being different from one another but partially including a same image portion, forming a bundle of beams by beams respectively emergent from the plurality of lenses equivalently, forming virtual images of the respective partial images displayed in the respective display areas by the respective lenses, and forming a single virtual image by superposing the virtual images of the partial images displayed in the respective corresponding display areas formed by the plurality of lenses.