Mobile Display Terminal Narrowing Frame Width via Segmented Adhesive Bonding
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Solution Overview
Problem
Conventional mobile information terminals face a trade-off between maintaining portability and maneuverability while increasing the screen size to display more information, as they require a substantial terminal frame width to secure the window display module, which hinders the reduction of the outer size.
Innovation Solution
A mobile information terminal design with a touch-panel-equipped display panel where the window glass has a smaller surface area than the touch-panel-equipped display panel, using a sealing part with an annular shape to narrow the terminal frame width and a support plate to secure the display module, allowing for a larger effective display area without increasing the terminal's outer size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the window glass has a larger surface area to match the touch panel and display panel, then the bonding area is increased improving structural stability, but the terminal frame width increases reducing portability
Solution Approach 1:
The patent divides the bonding structure into two distinct parts: a double-sided adhesive tape for securing the window display module to the chassis, and a separate adhesive layer for bonding the window glass to the touch panel. This segmentation allows each adhesive to be optimized for its specific function and location.
Solution Approach 2:
The patent applies different adhesive solutions to different locations: the double-sided adhesive tape is applied at the peripheral bonding area between the chassis and window display module, while a separate adhesive layer is applied at the interface between the window glass and touch panel. This local differentiation optimizes bonding at each interface independently.
2Length of moving object
If the terminal frame width is reduced for better portability, then the outer size is decreased improving maneuverability, but the bonding area is reduced compromising structural stability
Solution Approach 1:
The bonding function is segmented between the double-sided adhesive tape (peripheral bonding) and the separate adhesive layer (interface bonding), allowing the structure to maintain stability with reduced frame width.
Solution Approach 2:
The separate adhesive layer acts as an intermediary between the window glass and touch panel, ensuring proper bonding and positioning without requiring a large terminal frame width. This intermediary adhesive layer compensates for the reduced overall bonding area.
3Length of moving object
If the window glass surface area is made smaller than the touch panel, then the terminal frame width is reduced improving portability, but the bonding area between window glass and touch panel is reduced
Solution Approach 1:
The patent applies a localized adhesive layer specifically at the interface between the window glass and touch panel, ensuring adequate bonding area at this critical interface even when the overall window glass area is smaller than the touch panel area.
Solution Approach 2:
The adhesive layer serves as an intermediary substance that enables proper bonding between the window glass and touch panel, compensating for the reduced bonding area resulting from the smaller window glass dimensions.
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 enables a larger display area while maintaining superior portability and maneuverability by reducing the terminal frame width and preventing damage from impacts and dust ingress.
Implementation Method 1
bonding a sheet of window glass 101 and a touch panel 103, which are both transparent, together by use of an adhesive 102 and further boding the touch panel 103 and a display panel 105 together by use of an adhesive 104
Implementation Method 2
the window display module 109 is secured to the front chassis 107 by bonding the entire circumferences of the window glass mounting part 107a and the inner-surface outer circumferential part 101a of the window glass 101 together by use of the double-sided adhesive tape 106
Data Source
AI summary
A mobile information display terminal narrows a width from the outermost portion of a chassis to an outermost portion of the effective display area by using a sealing part between the chassis and a flat surface of the display panel. The chassis has a panel facing wall that faces a main face of a touch-equipped display panel. The sealing part has an annular shape that substantially matches a periphery of an inner surface of said glass sheet.