Color Filter Offset Layout for Wide-Angle Compact Displays
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Solution Overview
Problem
Existing virtual image display devices face challenges in simultaneously improving image quality and reducing the size of electronic apparatuses like head-mounted displays, as enhancing resolution often leads to increased size and weight.
Innovation Solution
A display device design featuring a first and second light-emitting element with corresponding color filters, where the relative positional relationships between the centers of these elements and filters are differently arranged, allowing for a wider angle of view while maintaining the size of the light-emitting elements, thus enhancing image quality and reducing the apparatus size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the display device enhances resolution by making the display image bright, then the image quality is improved, but the device becomes larger
Solution Approach 1:
The patent applies different relative positional relationships between light-emitting elements and color filters in different regions of the display. Specifically, the offset distance between the light-emitting element center and color filter center varies depending on the position, allowing optimization of light extraction efficiency and viewing angle locally while maintaining overall compact design
Solution Approach 2:
The patent changes the positional parameter (offset distance) between light-emitting elements and color filters to optimize performance. By adjusting this parameter across different display regions, the device achieves better light extraction and wider viewing angles without increasing overall size
2Adaptability or versatility
If the display device widens the angle of view, then the image quality is improved, but the light-emitting element size must be reduced
Solution Approach 1:
The patent implements position-dependent offset distances between light-emitting elements and color filters. Elements at different positions have different offsets optimized for their specific location, enabling wide viewing angles across the entire display without requiring each element to be extremely small
Solution Approach 2:
The patent introduces a positional dimension to the offset parameter, creating a two-dimensional optimization space (position and offset distance). This allows the system to achieve wide viewing angles through spatial variation rather than simply reducing element size
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 enables both improved image quality and reduced size of electronic apparatuses by maintaining the size of light-emitting elements and widening the angle of view, allowing for brighter and higher resolution displays.
Implementation Method 1
a first color filter through which light from the first light-emitting element passes, and a second color filter through which the light from the second light-emitting element passes
Data Source
AI summary
The display device includes the first light-emitting element, a second light-emitting element, a first color filter through which light from the first light-emitting element passes, and a second color filter through which the light from the second light-emitting element passes. The relative positional relationship between the center of the first light-emitting element and the center of the first color filter is different from the relative positional relationship between the center of the second light-emitting element and the center of the second color filter.