Head-Up Display Eye-Alternating Control for Binocular Disparity
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Solution Overview
Problem
Existing head-up display devices face issues with binocular disparity when using high magnification mirrors, leading to increased package size due to the need for wider spacing, which compromises compact design.
Innovation Solution
A head-up display system that individually outputs separate images for the driver's left and right eyes, using a controller to alternate these images based on eye position detection, thereby compensating for binocular disparity without enlarging the device's size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a high magnification mirror is used to display a large-sized image on the windshield, then the image size is increased, but binocular disparity occurs and the package size increases when components are arranged at a wide interval to compensate for binocular disparity
Solution Approach 1:
The patent divides the image output into separate left-eye and right-eye images, processing them independently through the reflection system. This segmentation allows each eye to receive optimized imagery without requiring increased component spacing, thus maintaining compact packaging while eliminating binocular disparity
Solution Approach 2:
The patent implements dynamic adjustment of image parameters based on detected eye positions. The controller modifies image characteristics in real-time according to the driver's eye location, enabling effective binocular disparity compensation without increasing the physical distance between PGU and reflection unit
2Reliability
If the high magnification mirror and PGU are arranged at a wide interval to compensate for binocular disparity, then binocular disparity is reduced, but the package size of the head-up display device increases
Solution Approach 1:
The patent replaces the mechanical solution of increasing physical distance between components with an electronic/optical solution. By using separate image processing for each eye and dynamic parameter adjustment based on eye position detection, the system achieves binocular disparity compensation without mechanical reconfiguration or increased spacing
Solution Approach 2:
The patent changes image parameters (such as position, size, or focus) dynamically based on detected eye positions. This parameter adjustment allows the system to compensate for binocular disparity effects without altering the physical arrangement or spacing of optical components
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 system effectively compensates for binocular disparity while maintaining a compact design by alternately displaying images tailored to each eye, ensuring clear and undistorted vehicle information display.
Implementation Method 1
a reflection unit configured to reflect, toward the windshield, the first and second images output from the PGU
Data Source
AI summary
According to at least one aspect, the present disclosure provides a head-up display (HUD) configured to display information on a windshield of a vehicle, comprising: a picture generation unit (PGU) configured to individually output a first image for a driver's left eye and a second image for a driver's right eye; a reflection unit configured to reflect, toward the windshield, the first and second images output from the PGU; and a controller configured to control the PGU to output the first and second images alternately.