Touch Display Peripheral Bonding Member Gap Filling
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Solution Overview
Problem
The existing touch control display devices have structural weaknesses due to gaps between the touch panel and display panel, which compromise the overall strength and reliability, especially when exposed to environmental factors like temperature, humidity, and static electricity.
Innovation Solution
A bonding member is positioned on the periphery of the bonding layer between the touch panel and display panel, filling the gaps and enhancing the structural integrity and reliability by ensuring close contact between the bonding member, bonding layer, and the panel surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If only a bonding layer is used to bond the touch panel and display panel, then the structure is simple and easy to manufacture, but gaps are formed on the side surface resulting in poor overall strength and structural reliability
Solution Approach 1:
The bonding structure is divided into two distinct parts: a bonding layer for bonding the touch panel and display panel together, and a bonding member positioned on the periphery to fill gaps. This segmentation allows each component to perform its specific function - the bonding layer provides adhesion while the bonding member provides structural support and gap filling, thereby resolving the contradiction between strength and complexity.
Solution Approach 2:
The bonding member extends from the side surface of the display panel into the gap region, adding a dimensional element that addresses the gap issue without requiring complete replacement of the bonding layer. This dimensional addition provides structural support while maintaining the simplicity of the bonding layer approach.
2Reliability
If gaps are left on the side surface for assembly convenience, then the manufacturing process is simple, but peripheral circuits are easily influenced by environmental factors reducing reliability
Solution Approach 1:
The bonding member is positioned specifically on the periphery of the bonding layer where gaps are formed, providing localized gap filling and environmental protection. This local application maintains the simplicity of the overall manufacturing process while addressing the specific reliability issue at the peripheral regions where gaps are most problematic.
3Shape
If the display panel area is made smaller to match the touch panel area, then gaps are reduced, but the display panel design flexibility and adaptability are limited
Solution Approach 1:
The bonding member acts as an intermediary element that allows the display panel to maintain its smaller area design while compensating for the gap issue. This intermediary component provides the necessary structural support and environmental protection, enabling design flexibility without compromising the overall configuration or adaptability of the touch control display device.
Data Source
AI summary
A touch display device includes a display panel (101), a touch panel (103), a bonding member (104), and a bonding layer (102) bonding the touch panel (101) and the display panel (102) together. The touch panel (101) includes a first functional layer (1031), the first functional layer (1031) is positioned on a surface of the display panel (103) adjacent to the bonding layer (102), the first functional layer (1031) has a first side surface (103a). The bonding member (104) is positioned on a periphery of the bonding layer (102), wherein the bonding member (104) is at least bonded to a portion of the first side surface (103a).