Touch Film Bending Layout for Antenna Interference Reduction
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Solution Overview
Problem
In display apparatuses, such as mobile phones, signal interference between electronic components and signal lines and the antenna is a significant challenge that existing technologies have not adequately addressed, affecting signal transmission and reception.
Innovation Solution
The display apparatus incorporates a touch film with a touch electrode, a circuit board, and a bending portion with bonding pin groups and redundant pin groups arranged to minimize interference by creating a wiring blank area near the antenna feed point, allowing for a more compact and interference-reduced design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electronic components and signal lines are provided in the display apparatus, then the display functionality is improved, but signal interference with the antenna increases
Solution Approach 1:
The patent extracts the touch circuit board from the main display structure and positions it separately at the side of the display panel, away from the antenna. This spatial separation removes the interfering components (touch circuit board with signal lines) from the antenna's vicinity, thereby reducing signal interference while preserving display functionality.
Solution Approach 2:
The patent repositions the touch circuit board from a conventional location near the antenna to a side location along the thickness dimension and lateral dimension of the display apparatus. By utilizing the side space dimension, the design creates spatial separation between interfering components and the antenna, reducing electromagnetic interference while maintaining compact form factor.
2Adaptability or versatility
If the antenna is located on the display panel, then wireless communication capability is improved, but signal interference from nearby components increases
Solution Approach 1:
The patent extracts the touch circuit board (source of interference) from the antenna's vicinity and positions it at the side of the display panel. This extraction removes the harmful interfering components from the antenna's operational space, allowing the antenna to function with improved signal quality while maintaining wireless communication capability.
Solution Approach 2:
The patent introduces a wiring blank area as an intermediary zone between the antenna and the touch circuit board. This blank area acts as a buffer that further reduces electromagnetic coupling and interference, mediating the interaction between the antenna and nearby components to improve signal quality.
3Volume of moving object
If components are arranged compactly in the display apparatus, then device size is reduced, but signal interference increases
Solution Approach 1:
The patent utilizes the side space dimension of the display apparatus to position the touch circuit board, rather than confining all components to the front plane. This dimensional redistribution allows compact overall device size while creating sufficient separation between the antenna and interfering components in three-dimensional space.
Solution Approach 2:
The patent segments the display apparatus into distinct functional zones: the main display area with the antenna, and the side area with the touch circuit board. This segmentation allows each component to be positioned optimally for its function while maintaining compact overall device dimensions through efficient spatial organization.
Data Source
AI summary
A display apparatus includes an antenna and a first bending portion. The antenna includes an antenna feed point. An end of the first bending portion is connected to a side edge of a touch film proximate to the antenna feed point, and another end of the first bending portion is provided with a first bonding pin group and a first redundant pin group. The first redundant pin group is located on a side of the first bonding pin group proximate to a first plane, such that a wiring blank area of the first bending portion is formed on a side of a connection lead group proximate to the first plane.