Display Ground Contact Structure to Prevent Cover Lifting
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Solution Overview
Problem
Display devices experience a lifting phenomenon due to the exposure of conductive layers, which compromises the contact between the cover member and the circuit board, leading to potential electrostatic discharge issues and reduced durability.
Innovation Solution
A display device design featuring a substrate with a circuit board connected to ground portions and a cover member with bent contact portions that connect to these ground portions through recesses in an insulating layer, ensuring stable electrical connections and enhanced durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cover member is designed to contact the circuit board, then contact reliability is improved, but the lifting phenomenon occurs due to exposed conductive layers creating gaps
Solution Approach 1:
The contact portions of the cover member are nested within or closely aligned with the ground portions of the circuit board. This nested arrangement ensures that the contact portions are positioned precisely where conductive layers are exposed, maintaining both contact reliability and structural stability by eliminating gaps.
Data Source
AI summary
A display device is disclosed. The display device may include a substrate including a display area in which a plurality of pixels are provided and a pad area at one side of the display area, a circuit board electrically connected to each of the plurality of pixels, spaced and/or apart (e.g., spaced apart or separated) from the substrate in a first direction, and including a first ground portion and a second ground portion each in both sides (e.g., two opposing sides), and a cover member extending from an upper portion of the circuit board to a lower portion of the circuit board, and including a first contact portion which is bent toward the first ground portion and connected to the first ground portion and a second contact portion which is bent toward the second ground portion and connected to the second ground portion.