Thin Display Frame Bending with V-Cut Restricting Means
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Solution Overview
Problem
Existing techniques for creating thin and lightweight display devices, such as liquid crystal televisions, face challenges in ensuring accurate bending angles and preventing gaps when attaching protection covers, especially for devices with rounded corners and narrow frames.
Innovation Solution
A metallic frame configuration using bent frame members with V-cut shaped holes and restricting means to control bending, ensuring precise bending angles and secure attachment of protection covers without additional components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a metallic frame is created by making cuts in an extrusion molded product, then the frame can be formed, but it is impossible to ensure a bending angle while making predetermined bending R in a bending portion
Solution Approach 1:
The patent applies preliminary action by pre-forming V-shaped notches at specific positions on the frame member before bending processing. These notches are created in advance to control the bending behavior, ensuring that the bending angle and bending radius (R) are precisely controlled during subsequent bending operations. The notches act as predetermined bending guides that constrain the deformation path.
Solution Approach 2:
The frame member is segmented by introducing V-shaped notches that divide the continuous material into sections with different structural properties. The notched portions become localized bending zones with controlled geometry, while other portions maintain their original structural integrity. This segmentation allows precise control over bending characteristics at specific locations.
2Weight of moving object
If the frame is made thinner and lighter with a narrow frame region, then the device becomes more portable and stylish, but it becomes difficult to ensure roundness of corners while defining a bending angle of a frame accurately
Solution Approach 1:
The patent applies local quality by creating V-shaped notches with specific geometric parameters at corner regions of the frame member. These notches have locally optimized dimensions and angles that are tailored to achieve the desired corner roundness while maintaining accurate bending angles. The local structural modification at notch locations enables precise control over corner geometry without affecting the overall thin and light design of the frame.
3Reliability
If a protection cover is attached on the surface to prevent break of a panel, then the panel is protected, but gaps may occur when attaching the protection cover to a frame
Solution Approach 1:
The V-shaped notches serve as intermediary structural features that mediate between the frame member and the protection cover. The notches create complementary fitting surfaces that guide the protection cover into proper alignment and ensure gap-free attachment. The geometric configuration of the notches provides mechanical interlocking or precise positioning that eliminates gaps at the junction between the protection cover and frame.
Data Source
AI summary
Provided is a technique related to a thin display device having a frame structure in which accuracy is ensured. First and second restricting convex portions (84, 85) are formed on the inner parts of a bending hole portion (83). A restricting face (84a) which is an end portion of the first restricting convex portion (84) takes an angle of 45 degrees sloping from upper left to the lower right. A restricting face (85a) which is an end portion of the second restricting convex portion (85) takes an angle of 45 degrees sloping from upper right to lower left. When bending processing is performed, the restricting face (84a) of the first restricting convex portion (84) abuts against the restricting face (85a) of the second restricting projection portion (85).