Integrated NFC Antenna on TFT Display Screen
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing NFC products face issues with antenna signal deterioration due to frequent disassembly and assembly, leading to wear off or inaccurate alignment, and signal transmission is affected by metal shells, limiting material choices for the electrical product.
Innovation Solution
A thin film transistor displayer integrated with a NFC antenna, where the antenna is disposed on the display screen and connected to the output circuit, ensuring fixed alignment and signal quality, allowing signal transfer through the facade and enabling flexible shell material choices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the NFC antenna is disposed on a separate PCB or FPC and adhered to the battery or shell, then the NFC antenna can be independently assembled, but the wiring is prone to wear off or inaccurate alignment causing signal deterioration
Solution Approach 1:
The NFC antenna is integrated directly into the display screen structure, merging the previously separate components (antenna, display, battery assembly) into a unified structure. This eliminates the need for separate PCB or FPC adherence and prevents wiring wear-off and misalignment issues while maintaining manufacturing feasibility through integrated production processes
2Strength
If the NFC antenna is located inside the shell of the electrical product, then the antenna is protected, but signal transmission is affected by metal shells limiting material choices
Solution Approach 1:
The NFC antenna is extracted from the traditional enclosed position inside the shell and repositioned to the front surface of the display screen. This extraction allows the antenna to operate in a location that does not suffer from metal shell interference, enabling versatile shell material selection while maintaining adequate protection through the display screen structure
3Device complexity
If the touch panel is disposed on a separate liquid crystal panel, then the liquid crystal panel structure is simple, but the integration of touch panel function into the liquid crystal panel is not achieved
Solution Approach 1:
The touch panel function is merged with the liquid crystal panel by integrating the NFC antenna and touch sensing capabilities directly into the display screen structure. This creates a multi-functional integrated panel that combines display, touch sensing, and NFC communication functions without significantly increasing structural complexity
Data Source
AI summary
A thin-film transistor displayer integrated with an NFC antenna, is a TP on/in cell thin-film transistor displayer. The NFC antenna is arranged on a display screen of the thin-film transistor displayer, where the NFC interface is built in an output circuit of the display screen and connected to a control mainboard of the display screen. The display screen and NFC antenna features are combined into one, and the NFC antenna is arranged directly on the thin-film transistor displayer, avoiding problems of signal quality deterioration and reception failure due to wearing of the NFC antenna interface and inaccurate alignment. In addition, a solution is provided for facilitating reception of an NFC signal from a display panel and touch panel of the displayer, or for the case that the NFC signal must be received from the display panel and touch panel of the displayer.