Display Shielding Tape Exposure for Circuit Stability
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Solution Overview
Problem
Existing display apparatuses face issues with electrical stability due to potential damage and uncontrolled changes in shielding properties of shielding adhesive tapes caused by bridging circuit boards, leading to unpredictable electromagnetic environments and risks of short circuits.
Innovation Solution
A display apparatus design where a first shielding adhesive tape is positioned on the main circuit board away from the display panel, exposing the bridging circuit board to avoid damage and maintain stability, thereby improving electrical stability and preventing short circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the shielding adhesive tape covers the bridging circuit board, then the shielding properties are maintained, but the adhesive tape may be damaged and electrical stability deteriorates
Solution Approach 1:
The patent extracts the bridging circuit board from underneath the shielding adhesive tape by creating an exposed region. This allows the bridging circuit board to be positioned in a location where it does not require coverage by the adhesive tape, thereby preventing potential damage to the tape while maintaining electromagnetic shielding effectiveness through alternative means.
Solution Approach 2:
The patent introduces a bridging notch structure as an intermediary element between the main circuit board and the shielding adhesive tape. This notch provides a dedicated space for the bridging circuit board, acting as a mediator that separates the shielding function from the electrical connection function, thus preventing the adhesive tape from coming into contact with and potentially damaging the bridging circuit board.
2Object-affected harmful factors
If the shielding adhesive tape is positioned to cover the bridging circuit board, then shielding is provided, but short circuit risks increase
Solution Approach 1:
The patent extracts the bridging circuit board from the coverage area of the shielding adhesive tape by defining an exposed region. This spatial separation eliminates the risk of short circuits between the conductive bridging circuit board and the adhesive tape, while electromagnetic shielding is maintained through the exposed region configuration and alternative shielding arrangements.
Solution Approach 2:
The patent segments the circuit board structure by creating a bridging notch that separates the main circuit board into distinct regions. This segmentation allows the bridging circuit board to be positioned in a dedicated exposed region, physically isolating it from the shielding adhesive tape and eliminating short circuit risks while maintaining functional integration.
3Object-affected harmful factors
If the bridging circuit board is covered by shielding adhesive tape, then shielding properties are maintained, but manufacturing precision requirements increase
Solution Approach 1:
The patent extracts the bridging circuit board from the shielding adhesive tape coverage area, eliminating the need for precise alignment between these two components. The exposed region is designed with sufficient margin to accommodate manufacturing tolerances, thereby reducing alignment precision requirements while maintaining effective electromagnetic shielding through the configured exposed region.
Data Source
AI summary
The present disclosure relates to a display apparatus and an electronic device, relating to the technical field of display. The display apparatus may comprise a display panel, a main circuit board, a bridging circuit board, and a first shielding adhesive tape. The main circuit board may be provided on the back surface of the display panel; the bridging circuit board may be provided at the side of the main circuit board distant from the display panel, and may be connected to the main circuit board in a binding mode; and the first shielding adhesive tape may be provided at the side of the main circuit board distant from the display panel, and expose the bridging circuit board.