Display Panel Protection Plate Spacer with Opening for Filler Injection
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Solution Overview
Problem
The manufacturing of liquid crystal display devices with integrated protection plates is challenging due to the difficulty in sealing a viscous liquid to prevent leakage between the display panel and the protection plate, which affects the bonding strength and ease of production.
Innovation Solution
A display device design featuring a spacer with missing portions to connect the inside and outside of the region, and a filler layer made of a resin that is polymerized by light and heat, filling the gap between the display panel and the protection plate, ensuring proper sealing and bonding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a viscous liquid is used to fill the gap between the display panel and protection plate, then the bonding strength is improved, but the manufacturing difficulty increases due to sealing requirements to prevent leakage
Solution Approach 1:
The patent extracts the harmful sealing requirement by using a solid filler material instead of viscous liquid, eliminating the leakage risk while maintaining bonding strength. The spacer structure with opening portions removes the need for complex sealing mechanisms.
Solution Approach 2:
The patent changes the physical state parameter of the filler material from liquid (viscous) to solid form. This parameter change eliminates the leakage issue inherent to liquids while maintaining the bonding function, significantly simplifying the manufacturing process.
2Ease of manufacture
If a solid filler material is used instead of viscous liquid, then the manufacturing process is simplified, but the bonding strength may be reduced
Solution Approach 1:
The patent employs composite material strategy by combining the spacer structure with opening portions and solid filler material to achieve both ease of manufacture and sufficient bonding strength. The composite design allows the solid filler to be easily applied while the spacer provides structural support and bonding functionality.
3Reliability
If the spacer is made complete without opening portions, then the sealing is improved, but the filling process becomes more difficult
Solution Approach 1:
The spacer is segmented with opening portions that allow the solid filler material to be easily introduced into the gap between the display panel and protection plate. After filling, the opening portions can be closed or covered, maintaining sealing reliability while facilitating the filling process.
Solution Approach 2:
The opening portions in the spacer allow preliminary action during the filling process, enabling easy introduction of solid filler material before the final sealing is established. This preliminary access point simplifies manufacturing without compromising the final sealed structure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design simplifies the manufacturing process and enhances the bonding strength between the display panel and the protection plate, preventing leakage and improving the durability of the display device.
Implementation Method 1
The filler layer has been polymerized by irradiation of light and heating
Implementation Method 2
The filler layer has been polymerized by irradiation of light and heating
Data Source
AI summary
A display device includes a display panel to display an image, a protection plate that is arranged on an observation side of the display panel with a predetermined gap with respect to the display panel, spacer that is arranged between the display panel and the protection plate to surround a region that corresponds to a screen area of the display panel, and a filler layer filling the region that is surrounded by the spacer of a gap between the display panel and the protection plate. The spacer includes at least one missing portion to connect an inside and an outside of the region to each other. The filler layer has been polymerized by irradiation of light and heating.