Transparent Touch Display Layering for Selective Illumination
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Solution Overview
Problem
Existing transparent electroluminescent displays face challenges in seamlessly integrating capacitive touch capabilities with light emitting elements, making it difficult for users to visually distinguish and interact with control settings due to inconsistent illumination.
Innovation Solution
A multilayer configuration with a first transparent layer containing light emitting elements and a second transparent layer with capacitive touch elements, separated by a structural layer, where a microprocessor employs a pulse skipping scheme to control illumination based on touch input, allowing for selective dimming and brightening of light emitting elements to enhance user interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If capacitive touch elements are integrated with light emitting elements in the same layer, then device complexity is reduced, but visual distinction between control elements and display elements deteriorates
Solution Approach 1:
The patent divides the display into separate functional layers: a first transparent layer containing light emitting elements for display, and a second transparent layer containing capacitive touch elements for input. This segmentation allows each layer to perform its specific function without interference, resolving the contradiction by spatially separating the two element types while maintaining overall device integration.
2Ease of operation
If all light emitting elements are illuminated continuously, then user interaction is enhanced, but energy consumption increases
Solution Approach 1:
The patent implements selective illumination where light emitting elements are activated periodically or on-demand based on user interaction with capacitive touch elements. The microprocessor controls which light emitting elements illuminate and for how long, enabling periodic action that enhances user interaction while reducing overall energy consumption compared to continuous illumination.
3Adaptability or versatility
If multiple control objects are displayed simultaneously, then device functionality is enhanced, but visual clarity deteriorates
Solution Approach 1:
The patent applies local quality by selectively illuminating specific light emitting elements corresponding to active control objects while keeping others dark. This creates localized visual emphasis on relevant control elements, enhancing visual clarity even when multiple control objects are available, thereby supporting enhanced device functionality without sacrificing clarity.
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
This solution enables intuitive user interaction by allowing users to visually apprehend changes in settings through selective illumination of light emitting elements, improving the usability of transparent electroluminescent displays with capacitive touch capabilities.
Implementation Method 1
a first transparent layer comprising a first plurality of rows of traces coupled with light emitting elements
Implementation Method 2
a second transparent layer comprising capacitive touch elements that receive touch input from a user
Data Source
AI summary
Transparent displays with capacitive touch are disclosed herein. Some embodiments include a rear transparent layer having light emitting elements, an intermediate transparent structural layer disposed on the rear transparent layer, a top transparent layer having capacitive touch elements that receive touch input, and a microprocessor that receives the touch input from the capacitive touch elements and controls illumination of the light emitting elements in response to the touch input, the microprocessor being configured to use a pulse skipping scheme applied to control illumination of the light emitting elements.