Head-Mount Display with Biological Feedback Control
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Solution Overview
Problem
Existing head-mount type display devices lack personalized control mechanisms for prolonged use and luminance adjustment, often triggering warnings or shutdowns too early or late based on user-specific factors such as content type and health conditions, leading to suboptimal user experience.
Innovation Solution
A head-mount type display device equipped with a detection section to monitor biological information like pulse wave, eye state, and body temperature, and an annunciation section to inform users about image control, allowing for personalized control of image display based on individual user conditions, enhancing convenience and reducing user load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a predetermined time threshold is used to control prolonged use, then the control mechanism is simple and easy to implement, but the timing is too early or too late depending on individual user conditions and content type
Solution Approach 1:
The patent implements a feedback mechanism where the detection section continuously monitors biological information (pulse wave, respiration, skin temperature) and feeds this data to the control section. The control section adjusts image display control based on real-time feedback about user's physical state, creating a closed-loop system that adapts to individual users' conditions dynamically
Solution Approach 2:
The patent transitions from a static time-based control threshold to a dynamic control mechanism that adjusts image display parameters in real-time based on detected biological information. The control section dynamically modifies display characteristics according to the user's actual physiological state, making the system adaptable to individual differences and content types
2Extent of automation
If a fixed time threshold is applied for prolonged use control, then the control logic is simple, but it cannot account for individual differences in physical condition and content engagement
Solution Approach 1:
The detection section serves multiple functions by simultaneously monitoring multiple biological parameters (pulse wave, respiration, skin temperature) to comprehensively assess user state. This multi-functional detection approach enables precise measurement of user condition while maintaining automated control
Solution Approach 2:
The patent replaces the simple mechanical/time-based control system with a biologically-informed control system. Instead of relying solely on elapsed time, the system uses biological sensors to detect physiological states, substituting a more sophisticated measurement approach that accounts for individual user differences and content engagement levels
3Object-affected harmful factors
If image luminance is reduced to alleviate user fatigue, then user health is improved, but the visual quality and viewing experience may be compromised
Solution Approach 1:
The control section dynamically adjusts image luminance based on real-time detection of user's biological state. When fatigue is detected through physiological parameters, the system dynamically reduces luminance to alleviate strain. Conversely, when the user's physical state indicates lower fatigue, the luminance can be increased to maintain visual quality, creating a dynamic balance between health and viewing experience
Solution Approach 2:
The patent changes the luminance parameter of the image display based on detected biological information. The control section modifies display parameters (luminance, contrast) in response to changes in user physiological state, adjusting the balance between visual quality and user comfort according to individual conditions and content requirements
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
The device provides enhanced user convenience by adjusting image display and luminance according to individual user differences, preventing premature or excessive use, thereby improving user health and experience.
Implementation Method 1
a detection section to detect biological information of the user
Implementation Method 2
biological information like pulse wave, eye state, and body temperature
Implementation Method 3
biological information like pulse wave, eye state, and body temperature
Implementation Method 4
generates image light representing an image using, for example, a liquid crystal display and a light source
Implementation Method 5
generates image light representing an image using, for example, a liquid crystal display and a light source
Implementation Method 6
guides the image light thus generated to the eyes of the user using a projection optical system and a light guide plate
Implementation Method 7
guides the image light thus generated to the eyes of the user using a projection optical system and a light guide plate to thereby make the user visually recognize a virtual image
Implementation Method 8
an annunciation section adapted to inform the user of image control information as information related to the control of the image based on a variation in the biological information detected
Data Source
AI summary
A head-mount type display device includes an image display device adapted to allow a user to visually recognize an image in a state of being mounted on a head of a user, a detection section disposed in the image display device and adapted to detect biological information of the user, a control section adapted to perform control of the image visually recognized by the user using the image display device, and an annunciation section adapted to inform the user of image control information as information related to the control of the image based on a variation in the biological information detected.