Transparent Antenna Layer Integrated With Display Screen
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Solution Overview
Problem
Conventional mobile devices with touch displays face challenges in achieving high antenna gain for millimeter-wave communications, leading to increased antenna size and reduced touchscreen area, which affects efficiency and visual appeal.
Innovation Solution
A sensing screen apparatus with an antenna layer made of transparent material, a transparent connection layer, and a first transparent medium layer is integrated above the display screen, allowing the touchscreen area to be fully utilized while maintaining screen display functionality, and utilizing first and second antenna units to transmit and receive signals for touch object location determination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If antenna size is increased to increase antenna gain for millimeter-wave communications, then antenna gain is improved, but touchscreen area is reduced
Solution Approach 1:
The patent merges the antenna function with the touch display screen by integrating transparent antenna elements into the screen structure. The antenna layer is positioned behind the display screen and uses transparent conductive materials, allowing the antenna to occupy the same physical space as the display without reducing touchscreen area. This combining of functions resolves the contradiction by enabling both high antenna gain and full touchscreen area utilization.
Solution Approach 2:
The patent applies transparency (an optical property similar to color change) to the antenna elements. By making the antenna material transparent, the antenna becomes invisible when the screen is on, and the touch screen remains fully functional. This allows the antenna to be integrated into the display area without affecting the visual appearance or reducing the touchscreen area, thus resolving the contradiction between antenna size and touchscreen area.
2Power
If antenna size is increased to meet millimeter-wave communication requirements, then antenna gain is improved, but device size increases
Solution Approach 1:
The patent transitions the antenna from a traditional planar configuration to a three-dimensional integrated structure within the display. The antenna layer is positioned at multiple depths within the display assembly (behind the screen, within the housing), utilizing the Z-dimension (depth) rather than only the X-Y plane. This dimensional transition allows the antenna to achieve high gain without increasing the device's external footprint, as the antenna elements are distributed throughout the internal volume of the display assembly.
3Area of stationary object
If transparent material is used for antenna layer, then touchscreen area is fully utilized, but manufacturing complexity increases
Solution Approach 1:
The patent makes the antenna structure multi-functional by combining it with existing display components. The transparent conductive layers used in the antenna are integrated with the display's existing transparent conductive oxide (TCO) layers, and the antenna housing utilizes the display's existing housing structure. This multi-functionality approach allows the antenna to be manufactured using the same processes and materials already present in the display assembly, thereby minimizing additional manufacturing complexity while enabling full touchscreen area utilization.
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 increases antenna size and gain without additional costs, enhancing communication efficiency and convenience while maintaining the touchscreen's functionality and visual appeal.
Implementation Method 1
a first antenna unit is configured to transmit a sensing signal, and second antenna units are configured to receive reflected signals of the sensing signal
Implementation Method 2
a first transparent medium layer is sandwiched between the connection layer and the antenna layer
Data Source
Figure 1~2
Figure 2a~2b
Figure 2c~3
AI summary
The present invention discloses a sensing screen, a control circuit and control method thereof, and a sensing screen apparatus, and pertains to the field of wireless communications. The sensing screen includes a display screen, a first transparent medium layer, a transparent connection layer, and an antenna layer. The antenna layer includes multiple antenna units, and the antenna units include at least one first antenna unit and multiple second antenna units. The first antenna unit is configured to transmit a sensing signal, the second antenna units are configured to receive reflected signals of the sensing signal, and the reflected signals are generated by a touch object by reflecting the sensing signal. Alternatively, the first antenna unit and the second antenna units are configured to simultaneously transmit or receive a communication signal. The multiple second antenna units are interspersed with the first antenna unit. According to the present invention, the antenna layer is arranged right above the display screen, so that a touch area of the sensing screen is fully utilized while screen display is not affected, so as to substantially increase an antenna size and increase an antenna gain. Further, a location corresponding to the touch object is determined according to the reflected signals, so as to implement a sensing function.