Light Guide Plate Emission Structure Regions for Continuous Motion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display devices that use light to create moving symbols appear discontinuous due to sequential framing, rather than continuous motion, when displaying optical signs with the same shape.
Innovation Solution
A display device with multiple light sources and a light guide plate featuring first, second, and third emission structure regions, where the third region is positioned between the first and second to ensure smooth transition of light between these regions, enhancing the appearance of continuous motion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If sequential framing is used to display moving symbols, then the display device can show optical signs with the same shape, but the motion appears discontinuous rather than continuous
Solution Approach 1:
The patent applies local quality by creating three distinct emission structure regions (first, second, and third regions) with different emission characteristics. The third emission structure region positioned between the first and second regions has optimized emission properties that bridge the gap between sequential frames, providing intermediate light emission that creates the perception of continuous motion rather than discontinuous framing.
2Reliability
If multiple light sources are used to create emission structure regions, then smooth light transition can be achieved, but the device complexity increases
Solution Approach 1:
The patent segments the light guide plate into three distinct emission structure regions, each with specific emission characteristics optimized for its location. This segmentation allows each region to independently control light emission and transition, achieving smooth overall light transition while maintaining manageable complexity through modular regional design rather than a monolithic complex structure.
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 display device achieves a continuous motion effect by ensuring that the light transitions smoothly from one emission region to another, even when the observer's viewpoint moves, by optimizing the placement and direction of emission structures within the light guide plate.
Implementation Method 1
a light guide plate configured to guide light incident from each of the light sources and emit a part of the guided light from a light exit surface
Implementation Method 2
the light guide plate includes a first emission structure region including a plurality of first emission structures in which an incident direction for maximizing an amount of light emitted in a predetermined direction is a direction of a first light source
Data Source
AI summary
In a display device (1), a light guide plate (2) includes a first emission structure region including a plurality of first emission structures (6 and 8) in which an incident direction for maximizing an amount of light emitted in a predetermined direction is a direction of a first light source (4), a second emission structure region including a plurality of second emission structures (9 and 10) in which the incident direction for maximizing the amount of light emitted in the predetermined direction is a direction of a second light source adjacent to the first light source, and a third emission structure region including a plurality of third emission structures (11 to 13) in which the incident direction for maximizing the amount of light emitted in the predetermined direction is a direction between the first light source and the second light source, and the third emission structure region is disposed between the first emission structure region and the second emission structure region.