Rotating Lenticular Watch Display for Observer-Free Animation
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Solution Overview
Problem
Existing display devices integrated into portable objects, such as watches, require observer movement to achieve a dynamic display, limiting their functionality.
Innovation Solution
A display device comprising two lenticular arrays with one rotating and one fixed support element, allowing for an animated rendering without requiring specific observer actions like wrist or head movements, utilizing lenses with aligned focal planes and pitches to create a dynamic display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single lenticular array is used with a fixed support element, then the device structure is simple, but the display remains static and requires observer movement to achieve dynamic effect
Solution Approach 1:
The patent applies the dynamics principle by introducing a rotating support element that can change its angular position relative to the fixed support element. This rotation enables the lenticular arrays to dynamically reconfigure the optical path, creating animated display effects without requiring observer movement. The rotating element transforms the static display into a dynamic one by varying the viewing angles and image presentations over time.
Solution Approach 2:
The patent implements the nesting principle by integrating multiple lenticular arrays (first and second lenticular arrays) on different support elements (rotating and fixed) within a compact hierarchical structure. The rotating support element with its lenticular array is nested within the overall display assembly that includes the fixed support element with its lenticular array, allowing complex optical functions to be achieved in a space-efficient manner.
2Manufacturing precision
If the lenticular arrays are configured with precise focal lengths and pitches to achieve animated rendering, then the display quality improves, but the manufacturing precision requirements increase
Solution Approach 1:
The patent applies parameter changes by carefully selecting and matching specific optical parameters of the lenticular arrays, including focal lengths (f1, f2) and pitches (p1, p2). By establishing precise mathematical relationships between these parameters and the rotation angle α, the patent enables controlled animated rendering effects. This systematic parameter matching allows for predictable optical behavior that can be manufactured with controlled precision.
Solution Approach 2:
The patent implements preliminary action by pre-configuring the lenticular arrays with specific focal lengths and pitches during the manufacturing stage. The optical parameters are predetermined and fixed in the design phase, allowing the arrays to automatically produce the desired animated effects when the support elements rotate relative to each other. This preconfiguration reduces the need for complex real-time adjustments during operation.
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
Enables an animated display in watches without the need for observer movement, enhancing user interaction and functionality.
Implementation Method 1
a first lenticular array and a first support element comprising a pattern arranged to be seen through the first lenticular array... a second support element comprising a second lenticular grating... the lenses of the lenticular array having a pitch corresponding to the pitch at which the bands of the first group, as well as the bands of the second group, succeed one another
Data Source
Figure 1~3
AI summary
The invention relates to a display device (1) intended to be integrated into a timepiece, such as a watch, said display device (1) comprising a first lenticular array (11) and a first support element comprising a pattern arranged to be seen through the first lenticular array, the device being notable in that it comprises a second support element comprising a second lenticular array (12), the second support element extending above the first support element and being arranged so that the pattern is seen through both the first and second lenticular arrays (12), one of the first or second support elements being a support element rotating about an axis perpendicular to the plane P in which the pattern extends.