Non-Uniform Sealant Design for Display Device Impact Resistance
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Solution Overview
Problem
Conventional display devices with uniform sealants are prone to damage near function buttons, leading to detachment of the upper frame from the lower substrate and degradation of elements when subjected to impact or drops, resulting in malfunction and damage.
Innovation Solution
The display device incorporates a sealant with non-uniform width, featuring a first portion with a larger width adjacent to function buttons and a second portion with a smaller width, enhancing adhesion between substrates and minimizing damage from external impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a uniform sealant width is used throughout the display device, then the manufacturing process is simple, but the sealant is prone to damage near function buttons when subjected to impact or drops
Solution Approach 1:
The sealant width is varied locally: a first width in a first region adjacent to function buttons and a second width in a second region away from function buttons. This local differentiation strengthens the sealant at vulnerable locations while maintaining simplicity elsewhere, resolving the contradiction between manufacturing simplicity and impact resistance.
Solution Approach 2:
The sealant is divided into multiple regions with different widths - a first portion adjacent to function buttons with a larger width, and a second portion away from function buttons with a smaller width. This segmentation allows each region to be optimized for its specific functional requirements, particularly enhancing protection at vulnerable button areas.
2Strength
If the sealant width is increased near function buttons, then the adhesion force and impact resistance are improved, but the manufacturing precision requirements increase
Solution Approach 1:
The sealant width is differentiated locally - wider at the first portion adjacent to function buttons to provide enhanced adhesion and impact resistance, and narrower at the second portion. This localized quality change concentrates the manufacturing precision requirements only where structurally necessary, rather than demanding high precision across the entire sealant length.
3Reliability
If a non-uniform sealant design is implemented, then the protection against detachment and degradation is enhanced, but the device complexity increases
Solution Approach 1:
The sealant structure implements local quality variation with different widths at different portions, providing enhanced protection at vulnerable areas adjacent to function buttons while maintaining a relatively simple overall structure. This approach enhances reliability without requiring complex multi-component systems or additional structural elements.
Data Source
AI summary
A display device includes a display panel having a first substrate having a display region and a peripheral region surrounding the display region, a light emitting structure in the display region, a sealant in the peripheral region, the sealant including a first portion having a first width, and a second portion adjacent to the first portion and having a second width smaller than the first width, and a second substrate on the light emitting structure and the sealant, a body including an upper frame and a lower frame, the body receiving the display panel, and at least one function button at a first portion of the display device, at least a portion of the function button protruding out of the body, and the first portion of the sealant being disposed adjacent to the at least one the function button at the first portion of the display device.