Wearable Heads-Up Display Symbol Rendering with Additive Color Mixing
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Solution Overview
Problem
Wearable heads-up displays face challenges in effectively drawing user attention to content while maintaining an unobtrusive presence in the user's external environment, requiring a balance between being aesthetically pleasing and attention-catching.
Innovation Solution
The method involves dynamically generating and combining multiple overlapping instances of a symbol with different intermediate colors and opacities, using a display system with multiple light sources to create the final color, allowing for gradual and attention-catching display of symbols like alphanumeric characters or graphics on a wearable heads-up display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If multiple overlapping instances of symbols with different intermediate colors are displayed to draw user attention, then the attention-catching capability is improved, but the device complexity increases
Solution Approach 1:
The symbol is divided into multiple overlapping instances, each rendered with different intermediate colors and opacities. These segmented instances are drawn sequentially to create the final composite symbol, allowing complex visual effects to be achieved through simpler individual components
Solution Approach 2:
The patent introduces a temporal dimension to the display process by drawing multiple instances sequentially over time. The alpha blending operation combines these instances across time layers, transforming a static display problem into a dynamic temporal process that achieves attention-catching effects without requiring complex spatial arrangements
2Illumination intensity
If multiple light sources are used to create combined colors for symbols, then the visual display quality is improved, but the energy consumption increases
Solution Approach 1:
Instead of activating all light sources simultaneously to create the final color, the patent uses partial action by drawing multiple instances with different intermediate colors sequentially. The alpha blending operation combines these partial contributions to achieve the final color, reducing peak energy consumption while maintaining visual quality
Solution Approach 2:
The patent changes the temporal parameters of light source activation by controlling the timing and duration of each instance rendering. By adjusting the opacity and display duration of intermediate instances, the system optimizes energy consumption while achieving the desired visual effect through cumulative light accumulation
3Loss of information
If symbols are displayed with high visibility to capture user attention, then the information delivery effectiveness is improved, but the aesthetic pleasingness deteriorates
Solution Approach 1:
The patent employs periodic action by drawing multiple instances of the symbol in sequence rather than all at once. This temporal periodicity creates a gradual appearance effect that is less jarring to users while still delivering the information effectively, as each instance contributes to the cumulative visibility of the symbol
Solution Approach 2:
The symbol display transitions from a static state to a dynamic process where multiple instances are drawn sequentially with varying opacities. This dynamic rendering creates an evolving visual appearance that captures attention through motion and change while maintaining aesthetic quality through controlled transitions
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 approach allows for aesthetically pleasing and attention-catching visual displays that effectively overlay content on the user's environment without detracting from it, enhancing user engagement and experience.
Implementation Method 1
the first intermediate color and the second intermediate color combine to display the color of the symbol where the second instance overlaps the first instance
Implementation Method 2
using a display system with multiple light sources to create the final color
Data Source
AI summary
Systems, devices, and methods that display visual symbols are described. A visual symbol has a color and a linewidth. Multiple instances of the symbol are concurrently and progressively drawn, one on top of the other, in the display area of a display device. Each respective instance has a respective intermediate color. The respective intermediate colors combine to produce the color of the symbol where the respective instances overlap in the display area. Each respective instance also has a respective linewidth and the respective linewidths converge to the linewidth of the symbol as each instance is progressively drawn. A backwards progression through the same sequence is employed to regressively undraw a symbol from the display area of the display device. Computer program products comprising processor-executable instructions for performing the methods are also described.