3D Display Light Guide Panel Pattern Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current 3D image display apparatus using a parallax barrier with a line source has limited pixel viewability, resulting in reduced resolution due to the fixed pattern arrangement in the light guide panel.
Innovation Solution
A 3D image display apparatus with a light guide panel featuring alternating patterns that reflect light from multiple sources within specific threshold ranges, allowing for enhanced resolution by serially driving light sources and adjusting pattern density and shape to optimize light emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If patterns are formed at regular intervals in the light guide panel with a single line source, then the structure is simple and easy to manufacture, but the number of viewable pixels is limited and resolution is reduced
Solution Approach 1:
The patent divides the light guide panel into multiple regions with different pattern types (first patterns and second patterns) that are selectively arranged. This segmentation allows different areas to contribute to different viewable pixels, thereby increasing the total number of viewable pixels and improving resolution while maintaining manufacturability through systematic pattern placement
Solution Approach 2:
The patent applies different pattern characteristics to different locations in the light guide panel. Specifically, first patterns are used in certain regions while second patterns are used in other regions, with each pattern type optimized for its local function. This local differentiation enables more pixels to be viewed simultaneously across different areas of the display
2Measurement precision
If multiple light sources are used to increase viewable pixels, then resolution is enhanced, but the device complexity and control difficulty increase
Solution Approach 1:
The patent employs periodic action by alternately driving multiple light sources in sequence rather than simultaneously. The controller activates first light sources, then second light sources, creating a time-division multiplexed display system. This periodic driving approach allows multiple light sources to be used effectively while maintaining relatively simple control logic and avoiding the complexity of simultaneous multi-source coordination
Solution Approach 2:
The patent introduces dynamic control by sequentially activating different light sources based on the display content requirements. The controller dynamically selects which light sources to activate and when, allowing flexible adaptation to different display scenarios while managing system complexity through time-based control strategies
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 solution enhances resolution by alternately displaying images from multiple light sources, effectively increasing the number of viewable pixels and improving image clarity without the need for additional hardware.
Implementation Method 1
a first pattern configured to reflect the light from the first light source in a direction within a predetermined threshold range with respect to a direction perpendicular to the light guide panel, and reflect the light from the second light source in a direction that is outside of the predetermined threshold range
Implementation Method 2
a second pattern configured to reflect the light from the second light source in a direction within a predetermined threshold range with respect to a direction perpendicular to the light guide panel, and reflect the light from the first light source in a direction that is outside of the predetermined threshold range
Data Source
AI summary
A three-dimensional (3D) image display apparatus includes a display panel configured to display a 3D image; a light guide panel disposed on a rear surface of the display panel to emit light to the display panel; a first light source configured to irradiate light toward the light guide panel; a second light source configured to irradiate light toward the light guide panel; and a controller configured to control the first light source and the second light source to emit light alternately, wherein the light guide panel includes a first pattern which responds to the first light source and does not respond to the second light source, and a second pattern which responds to the second light source and does not respond to the first light source.