Display Support Apparatus with Stabilizing Member for Tablet Rotation
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Solution Overview
Problem
Information handling systems, particularly tablet devices, face challenges in maintaining display rigidity due to the display's rotational mechanism, as increasing the stiffness of the back cover does not effectively prevent bending and twisting relative to the chassis base.
Innovation Solution
A display support apparatus featuring a stabilizing member with a cable passageway, rotational coupling, and supporting arms with cable-routing channels, which maintains the supporting arms in a parallel orientation, utilizing interference couplers and torsion bars to provide structural rigidity and prevent rotation relative to the chassis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display is rotatably coupled to support arms which are rotatably coupled to the chassis, then the display can rotate 180 degrees between notebook and tablet modes, but the display bends and twists relative to the chassis base
Solution Approach 1:
The patent combines multiple support arms into a unified structure where all arms are rigidly maintained in parallel orientation through a stabilizing member. This merging of previously independent rotational components into a coordinated system prevents the display from bending and twisting while preserving the 180-degree rotation capability between notebook and tablet modes.
Solution Approach 2:
The stabilizing member acts as an intermediary component between the support arms and the chassis. It rigidly maintains the supporting arms in parallel orientation, serving as a mediator that transmits rotational motion while preventing display distortion. This intermediary structure resolves the contradiction by decoupling the rotation function from the stability function.
2Strength
If the stiffness of the back cover of the display is increased, then display rigidity is improved for direct coupling, but this does not make the display more rigid when rotatably coupled
Solution Approach 1:
The patent extracts the rigidity function from the display back cover and relocates it to the support arm assembly. By taking out the structural support function from the display itself and placing it in the support mechanism, the display back cover stiffness becomes irrelevant to overall display stability during rotation. The stabilizing member and parallel arm configuration provide the necessary rigidity externally.
3Adaptability or versatility
If multiple support arms are used to enable rotation, then adaptability is improved, but the display bends and twists due to lack of rigid maintenance between arms
Solution Approach 1:
The patent merges the multiple support arms into a coordinated system where a stabilizing member rigidly maintains all arms in parallel orientation. This ensures that during rotation between notebook and tablet modes, the display maintains a stable shape and orientation without bending or twisting, as all arms move together as a unified structure.
Data Source
AI summary
A display support apparatus includes a stabilizing member defining a cable passageway, a rotational coupling member coupled to the stabilizing member, and a plurality of supporting arms coupled to the stabilizing member, at least one supporting arm defining a cable-routing channel, whereby the stabilizing member rigidly maintains the plurality of supporting arms in a substantially parallel orientation relative to each other. The display support apparatus may be rotatably coupled to a chassis base and a display may be rotatably coupled to the support arms to provide rigid support for the display on the chassis.