Capture-Display Pixel Architecture for Reduced Wearable Image Delay
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Solution Overview
Problem
Existing image capturing and display apparatuses, such as head mount displays and smart glasses, face challenges in applying a single surface for both light reception and emission, leading to delayed image display and difficulty in tracking moving objects due to the time gap between capturing and displaying scenes.
Innovation Solution
An image capturing and display apparatus with photoelectric conversion elements and light-emitting elements, where signal paths for transmitting electrical charge signals from photoelectric conversion elements to light-emitting elements are integrated within the pixel region, allowing for simultaneous image capture and display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the same surface serves as both light-receiving surface and light-emitting surface, then the device can be downsized and integrated, but the time gap between capturing and displaying scenes increases, causing delayed image display
Solution Approach 1:
The device is divided into two separate functional modules: an image capturing module with photodiodes and an image display module with EL elements. These modules are positioned at different locations (front surface and rear surface respectively) to enable simultaneous capture and display operations, eliminating the time delay while maintaining device integration.
Solution Approach 2:
The patent transitions from a two-dimensional planar integration (same surface) to a three-dimensional spatial arrangement (different surfaces). By utilizing the depth dimension of the device, the capturing and display functions are separated in space rather than competing for the same surface area, allowing simultaneous operation without increasing overall device volume.
2Adaptability or versatility
If the same surface serves as both light-receiving surface and light-emitting surface, then the device can be integrated, but it becomes difficult to apply the apparatus to wearable devices like HMD or smart glasses
Solution Approach 1:
By segmenting the device into independent capturing and display modules with separate optical paths, the patent creates a modular architecture that can be adapted to various wearable device configurations. The capturing module can be positioned in the user's field of view while the display module is positioned for optimal viewing, enabling flexible application to different wearable form factors.
3Reliability
If there is a time gap between capturing and displaying scenes, then the user cannot catch hold of moving objects, but separating capture and display functions increases device complexity
Solution Approach 1:
The patent employs segmented functional modules with dedicated signal paths. The image capturing module converts optical signals to electrical signals independently, while the image display module converts electrical signals to optical output independently. This segmentation allows simultaneous operation of capture and display functions, eliminating time delay and improving tracking reliability without requiring complex inter-module coordination.
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
This configuration reduces the time gap between light incidence and emission, enabling faster image processing and display, improving the user's ability to track moving objects and enhancing the applicability of the apparatus to wearable devices.
Implementation Method 1
a plurality of photoelectric conversion elements for converting incident light from the outside of the image capturing and display apparatus to electrical charge signals
Implementation Method 2
a plurality of light-emitting elements for emitting light of an intensity corresponding to the electrical charge signals acquired by the plurality of photoelectric conversion elements
Data Source
AI summary
An image capturing and display apparatus comprises a plurality of photoelectric conversion elements for converting incident light from the outside of the image capturing and display apparatus to electrical charge signals, and a plurality of light-emitting elements for emitting light of an intensity corresponding to the electrical charge signals acquired by the plurality of photoelectric conversion elements. A pixel region is defined as a region in which the plurality of photoelectric conversion elements are arranged in an array. Signal paths for transmitting signals from the plurality of photoelectric conversion elements to the plurality of light-emitting elements lie within the pixel region.