3D Display Panel Calibration for Radar-Based Touch Detection
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Solution Overview
Problem
Existing display devices lack the ability to detect user's touch or gesture in three-dimensional space, limiting the precision and realism of 3D image interaction.
Innovation Solution
Incorporating an antenna into the display panel to detect user touches in 3D space through a radar-based method, using a calibration procedure to establish precise 3D touch coordinates, enabling accurate interaction with 3D icons.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a flat panel display device is used, then the display area is limited to 2D surface, but the ability to detect user touch in 3D space is lost
Solution Approach 1:
The patent combines the antenna function with the display panel structure, integrating radar-based 3D touch detection capability into the existing display device. The antenna is positioned within the display panel structure to detect user touches in 3D space, merging detection functionality with the display function without requiring a completely separate detection system.
Solution Approach 2:
The display panel serves multiple functions: it displays 3D images and simultaneously detects user touch inputs in 3D space through the integrated antenna. This multi-functionality eliminates the need for separate detection devices, reducing overall system complexity while enabling precise 3D touch detection.
2Measurement precision
If no calibration procedure is implemented, then the device operation is simpler, but the precision of 3D touch coordinates cannot be established
Solution Approach 1:
The patent implements a calibration procedure that performs preliminary actions to establish the relationship between displayed image positions and actual 3D touch coordinates. During calibration, the system detects user touches on reference points and stores this information to create a transformation matrix, enabling precise 3D touch detection in subsequent operations.
3Adaptability or versatility
If an antenna is added to detect 3D touch, then 3D interaction capability is enabled, but the device structure becomes more complex
Solution Approach 1:
The antenna is integrated within the display panel structure, combining the display and detection functions into a single unified device. The antenna is positioned to detect 3D touch inputs while the display panel renders 3D images, allowing the same structural space to serve dual purposes without requiring separate external detection components.
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 precise detection and interaction with 3D icons in 3D space, enhancing the realism and precision of 3D image display devices.
Implementation Method 1
a radar-based method, using a calibration procedure to establish precise 3D touch coordinates
Data Source
AI summary
Provided are a display device and a method for driving the same. A display device includes a display panel and a processor. The processor controls the display panel to display a designated guide image for setting three-dimensional (3D) touch coordinates in 3D space. The processor controls the display panel to display a guide message directing a user to touch a plurality of objects included in the guide image in sequence. When the user sequentially touches the plurality of objects, the processor records reference coordinates in the 3D space corresponding to the user's touches. Based on the recorded reference coordinates, the processor completes setting of 3D touch coordinates.