Light Guide Plate Outgoing Structure Regions for Line Width Control
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Solution Overview
Problem
Existing display devices lack the option to adjust the width of lines constituting an image, limiting their versatility and visual presentation capabilities.
Innovation Solution
A display device incorporating a light guide plate with multiple outgoing structure regions, each with specific incident direction angles and reflective surfaces, allowing for adjustable line widths and smooth transitions between light emission regions, enabling the creation of moving patterns and varying line widths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a light guide plate with fixed outgoing structures is used, then the device structure is simple, but the line width adjustment capability is lost
Solution Approach 1:
The light guide plate is divided into multiple outgoing structure regions (first, second, and third regions), each containing multiple outgoing structures with different incident direction characteristics. This segmentation allows different regions to control light in different directions, enabling line width adjustment by selectively activating different regions while maintaining a relatively simple overall structure.
Solution Approach 2:
Different outgoing structure regions are designed with specific local qualities: the first and second regions have structures oriented toward adjacent light sources, while the third region has structures oriented toward an intermediate position. This local quality differentiation enables precise control over light distribution and line width in different areas of the display.
2Adaptability or versatility
If outgoing structures have fixed incident directions, then the manufacturing process is simple, but the ability to create smooth transitions between light emission regions is limited
Solution Approach 1:
The outgoing structures are designed with varying incident direction angles rather than fixed uniform orientations. The first outgoing structures have incident directions within a first angle range, the second within a second angle range, and the third within a third angle range. This dynamic angular distribution enables smooth transitions between light emission regions while the modular regional design keeps manufacturing feasible.
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 provides options for line width adjustment and creates a visually appealing moving pattern effect, enhancing the display device's versatility and visual presentation capabilities.
Implementation Method 1
a light guide plate configured to guide light incident from each of the light sources to cause part of the light to exit from a light exit surface
Data Source
AI summary
A display device includes a light guide plate that guides light incident from a first light source to cause part of the light to exit from a light exit surface. The light guide plate includes a first outgoing structure region including a plurality of outgoing structures, and the plurality of first outgoing structures have maximum incident directions that make intensity of light exiting in a predetermined direction largest scattered over a first angle range.