HMD Display Panel Alternating Eye Brightness to Reduce Fatigue
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Solution Overview
Problem
Head-mounted display devices cause user fatigue due to inconsistent image brightness, leading to discomfort and increased light exposure.
Innovation Solution
A display panel system that alternates image brightness between the left and right eyeballs, maintaining a consistent average brightness for one image while adjusting the other to a lower brightness within a reference range, using a brightness correcting unit and data driver to generate and manage image data signals for concurrent display with different brightness levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If image brightness is increased to improve visibility and display quality, then display quality is improved, but user fatigue increases due to excessive light exposure
Solution Approach 1:
The patent implements periodic alternation of brightness levels between left and right eyes. The display device cycles through different brightness patterns (first brightness pattern, second brightness pattern, third brightness pattern) in sequence, causing each eye to experience varying brightness levels over time. This periodic variation allows the eyes to adapt to different illumination conditions, reducing fatigue while maintaining adequate visibility.
Solution Approach 2:
The patent dynamically changes the brightness parameter of displayed images based on which eye is currently being addressed. When the left eye is active, the left display unit uses a first brightness pattern while the right display unit uses a second brightness pattern. This parameter modulation ensures that each eye receives appropriate brightness levels, preventing excessive light exposure to any single eye and thereby reducing user fatigue.
2Stability of the object's composition
If consistent brightness is maintained across both eyes to ensure uniform display quality, then display uniformity is improved, but user fatigue increases due to continuous high light exposure
Solution Approach 1:
The system periodically switches between different brightness patterns for left and right eyes. During the first period, the left eye receives higher brightness while the right eye receives lower brightness. During the second period, this is reversed. This periodic alternation maintains overall brightness consistency across both eyes over time while preventing continuous high light exposure to any single eye, thereby reducing fatigue.
Solution Approach 2:
The brightness display is made dynamic rather than static. The display device adapts brightness levels in real-time based on which eye is currently active and which pattern is currently being applied. This dynamic adjustment allows the system to maintain perceived brightness consistency while actually varying the physical brightness to reduce cumulative light exposure and user fatigue.
3Ease of operation
If different brightness patterns are applied to left and right eyes to reduce fatigue, then user comfort is improved, but brightness inconsistency causes visual discomfort
Solution Approach 1:
The system uses periodic alternation of brightness patterns to balance comfort and uniformity. By cycling through different brightness assignments for left and right eyes, the system ensures that each eye experiences both higher and lower brightness levels over time. This periodic variation reduces fatigue while maintaining perceived uniformity through the alternating pattern, preventing permanent brightness imbalance.
Solution Approach 2:
The brightness display dynamically adjusts based on real-time conditions of which eye is active and which brightness pattern is currently applied. This dynamic control allows the system to maintain visual comfort by adapting brightness levels to prevent excessive light exposure to any single eye, while the rapid switching maintains perceived uniformity and prevents visual discomfort from static brightness differences.
Data Source
AI summary
A display panel including: a display unit configured to provide a first image to one of a left eyeball and a right eyeball of a user and to provide a second image having the same tone as a tone of the first image to the other one of the left eyeball and the right eyeball of the user; a brightness correcting unit configured to generate second image data corresponding to the second image by using first image data corresponding to the first image; and a data driver configured to generate a first data signal based on the first image data, to generate a second data signal based on the second image data, and to provide the first and second data signals to the display unit, and the first image and the second image are displayed with different brightnesses during at least a part of an image display period.