Insulating Cover Structure for Thin Liquid Crystal Display
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Solution Overview
Problem
Conventional liquid crystal display devices with touch control functions are often bulky due to the thickness of the rim frame, protective substrate, and liquid crystal display module, making them difficult to achieve a light and thin design.
Innovation Solution
The design incorporates an insulating cover with a reflective bottom plate, sidewalls, and a supporting plate to support the backlight module, combined with a touch panel assembly and a securing frame that uses a double-sided adhesive tape for connection, reducing the overall thickness and number of assembly steps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If conventional assembly methods with rim frame, protective substrate and liquid crystal display module are used, then the device can be assembled, but the thickness and weight of the device increase
Solution Approach 1:
The patent combines the rim frame, protective substrate, and liquid crystal display module into a single integrated insulating cover structure. The insulating cover integrates the functions of the rim frame (support and positioning), protective substrate (protection and insulation), and provides a unified assembly interface, thereby reducing the overall thickness and simplifying the assembly structure while maintaining all necessary functions.
Solution Approach 2:
The insulating cover serves multiple functions simultaneously: it acts as a structural support frame, provides electrical insulation, protects internal components, and serves as a mounting surface for the touch panel assembly. This multi-functional design eliminates the need for separate dedicated components for each function, reducing overall device thickness and assembly complexity.
2Ease of manufacture
If multiple components (rim frame, protective substrate, liquid crystal display module) are stacked, then the device can be assembled with proper functions, but the number of assembly steps increases
Solution Approach 1:
By merging the rim frame, protective substrate, and support structures into a single insulating cover component, the patent reduces the number of discrete parts that need to be assembled. This integration directly reduces the number of assembly steps and assembly time, while maintaining all necessary structural and protective functions.
Solution Approach 2:
The insulating cover is designed as a pre-integrated component with all necessary structural elements and mounting features already in place. This preliminary integration of functions into a single component eliminates the need for multiple sequential assembly operations, thereby simplifying the manufacturing process and reducing assembly time.
3Strength
If screws are used to fasten the front bezel to the rim frame, then the assembly is secure, but the device thickness increases
Solution Approach 1:
The patent replaces the mechanical screw fastening system with an adhesive bonding system using double-sided adhesive tape. This substitution eliminates the need for threaded holes and screw heads that would increase device thickness, while still providing sufficient fastening strength through the adhesive bonding between the insulating cover and front bezel.
Solution Approach 2:
The patent uses double-sided adhesive tape (a thin film material) to replace the bulky mechanical screw fastening system. The adhesive tape provides a thin, flexible bonding solution that maintains fastening strength while minimizing the increase in device thickness, allowing for a more compact overall design.
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
The solution results in a lighter and thinner liquid crystal display device with reduced assembly complexity, enhancing mechanical strength and user interaction through a streamlined assembly process.
Implementation Method 1
The second end portion is connected to the touch panel assembly
Data Source
AI summary
A liquid crystal display device includes a backlight module, a liquid crystal display panel, an insulating cover and a touch panel assembly. The insulating cover includes a reflective bottom plate for supporting the backlight module, at least one first sidewall with a first end and an opposite second end, at least one second sidewall with a third end and an opposite fourth end and a supporting plate connected to the opposite second end of the first sidewall and the third end of the second sidewall. The supporting plate is arranged in parallel with the reflective bottom plate and has an upper surface for supporting the liquid crystal display panel. The securing frame has a first end portion fixed to a lower surface of the supporting and a second end portion.