Front-Lit Touchscreen Interface With Hidden Decorative Display
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Solution Overview
Problem
The integration of computing devices with everyday items often results in displays that are visible even when turned off, detracting from the aesthetics of the item.
Innovation Solution
A display system comprising a stack of material layers, including a decorative layer and optical layers that can be illuminated to provide visually appealing content when not in use, and a touch sensing layer that detects user interactions, with layers designed to prevent light bleeding and provide haptic feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the display is made visible on the surface of the item, then user interaction is facilitated, but the aesthetics of the item deteriorates when the computing device is turned off
Solution Approach 1:
The display system is divided into multiple independently controllable optical layers, each serving different functions (decorative content, UI icons, notifications). This segmentation allows selective illumination of only the necessary layers based on operational state, maintaining aesthetics when inactive while enabling user interaction when needed.
Solution Approach 2:
The display employs periodic or on-demand illumination of optical layers based on operational needs. The decorative layer can be illuminated during inactive periods to maintain aesthetics, while UI layers are illuminated only during active interaction periods, creating a rhythmic pattern of visibility that balances aesthetics and usability.
2Adaptability or versatility
If multiple optical layers are stacked to provide different content, then functionality is enhanced, but light bleeding between layers occurs
Solution Approach 1:
Light-blocking layers are introduced as intermediary elements between adjacent optical layers. These layers act as mediators that selectively prevent light from one layer from interfering with adjacent layers, allowing multiple functional layers to coexist without mutual interference while maintaining their individual visibility when activated.
3Ease of operation
If the display is illuminated to show content, then user interaction is enabled, but energy consumption increases
Solution Approach 1:
Instead of illuminating the entire display system, only the specific optical layer containing the required content is illuminated. This partial action approach minimizes energy consumption by activating only the necessary portion of the display (e.g., only UI icons or only decorative content) rather than all layers simultaneously.
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
Enhances user interaction while maintaining aesthetic appeal by providing visually appealing content and enabling intuitive user interface operations without visible displays when inactive.
Implementation Method 1
illuminating, by a first light source supported by a support substrate, a first optical layer such that decorative content below the first optical layer is lit or rendered visible
Implementation Method 2
illuminating, by a second light source, the second optical layer such that at least one first graphical user interface icon is visible
Implementation Method 3
detecting, by a circuit, a touch by the user in an area of the touch sensing layer
Data Source
Figure 1A~1B
Figure 2
Figure 3~4
AI summary
A method for operating an electronic display includes illuminating, by a first light source, a first optical layer such that decorative content is lit or rendered visible to a user through a touch screen of the electronic display, wherein the touch screen comprises a second optical layer and a touch sensing layer; illuminating, by a second light source, the second optical layer such that at least one first graphical user interface icon is visible to the user of the electronic display; and detecting, by a circuit, a touch by the user in an area of the touch sensing layer that corresponds to an area of the second optical layer comprising the at least one first graphical user interface icon.