Integrated Display Antenna Layout for Ambient-Light-Free Gesture Sensing
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Solution Overview
Problem
Existing display technologies do not effectively integrate non-contact gesture interaction capabilities, particularly in environments with ambient light and requiring privacy protection.
Innovation Solution
A display apparatus is developed that integrates a plurality of antenna units on the display module, utilizing a liquid crystal display structure with a first substrate and a second substrate, where the antenna units include a first radiation portion and a first reference electrode, and the driving layer serves as the reference electrode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If non-contact gesture interaction is implemented using machine vision, then interaction capability is provided, but the system is influenced by ambient light and privacy is compromised
Solution Approach 1:
The patent combines the display module and antenna units into a single integrated structure, where the driving layer of the display serves as the reference electrode for the antenna units. This merging eliminates the need for separate gesture interaction hardware, resolving the contradiction by providing gesture capability through integration rather than adding separate vulnerable components
Solution Approach 2:
The driving layer of the display module serves dual functions: as the driving layer for liquid crystal control and as the reference electrode for millimeter wave antenna units. This multi-functionality allows the system to achieve gesture interaction capability while using existing display structures, avoiding the ambient light and privacy issues associated with traditional machine vision approaches
2Adaptability or versatility
If antenna units are integrated on the display module, then non-contact interaction capability is enhanced, but the display structure becomes more complex
Solution Approach 1:
The patent merges the display module and antenna units into an integrated structure where the driving layer serves as the reference electrode. This combination reduces overall system complexity by eliminating separate components and simplifying the structural hierarchy, despite adding interaction capability
Solution Approach 2:
The driving layer performs multiple functions: driving the liquid crystal layer and serving as the reference electrode for antenna units. This multi-functionality reduces the need for additional components, thereby managing structural complexity while enhancing interaction capability
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 integrated antenna units enable non-contact human-computer interaction by processing radio frequency signals, allowing for accurate gesture recognition and interaction without being influenced by ambient light, thus enhancing user privacy and interaction range.
Implementation Method 1
the integrated antenna units enable non-contact human-computer interaction by processing radio frequency signals
Data Source
AI summary
A display apparatus and an electronic device are provided, and belong to the field of display technology. The display apparatus includes a display module and a plurality of antenna units integrated on the display module. The display module includes a first substrate and a second substrate opposite to each other and a liquid crystal layer between the first substrate and the second substrate; each antenna unit includes a first radiation portion and a first reference electrode opposite to each other; the first radiation portion is on a light outgoing side of the display module; and the first substrate includes a first base substrate and a driving layer on a side of the first base substrate close to the liquid crystal layer; and the driving layer is also used as the first reference electrode of each antenna unit.