Dual-Axis Display Support Mechanism for Portrait-Landscape Visibility
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Solution Overview
Problem
Existing image forming apparatuses face challenges in displaying vertically or horizontally long images on a rectangular screen without compromising visibility, as rotating the image 90 degrees often results in reduced visibility or improper orientation.
Innovation Solution
A display unit support mechanism that allows the display unit to be rotated about two axis lines, enabling it to switch between a forward, upward, horizontal, and vertical attitude, ensuring the image is always oriented correctly on the screen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display unit is fixed in a single orientation, then the structure is simple, but the image visibility is compromised when displaying vertically or horizontally long images
Solution Approach 1:
The display unit is made dynamically adjustable through a support mechanism that enables rotation about two axis lines. The first axis line allows rotation between forward and upward attitudes, while the second axis line allows rotation between horizontal and vertical attitudes. This dynamic adjustability ensures the display unit can adapt to different image orientations (horizontal and vertical) to maintain optimal visibility, resolving the contradiction between structural simplicity and adaptability.
Solution Approach 2:
The support mechanism introduces an additional degree of freedom by enabling rotation about a second axis line that intersects with the first axis line. This second dimension of rotation (horizontal/vertical orientation) complements the first dimension (forward/upward tilt), allowing the display unit to accommodate various image aspect ratios and orientations, thereby improving adaptability without excessive complexity.
2Adaptability or versatility
If the display unit is rotated 90 degrees to display vertically long images, then the image can fit the screen, but the visibility and orientation become improper
Solution Approach 1:
Rather than fixed rotation, the support mechanism provides dynamic adjustment capability. Users can rotate the display unit about the first axis line to change tilt angle (forward/upward) and about the second axis line to change orientation (horizontal/vertical). This enables the display unit to adapt its geometry to match the image aspect ratio, ensuring proper orientation and high visibility for both horizontally and vertically long images.
Solution Approach 2:
The support mechanism allows changing critical parameters of the display unit's spatial orientation: the tilt angle (via first axis line rotation) and the horizontal/vertical orientation (via second axis line rotation). By adjusting these parameters, the display unit can optimize its aspect ratio to match the displayed image, maintaining proper orientation and visibility rather than forcing a fixed 90-degree rotation.
3Adaptability or versatility
If a single axis line rotation is provided, then the mechanism is simple, but the display unit cannot properly display images in all orientations
Solution Approach 1:
The rotation capability is segmented into two independent rotational degrees of freedom: rotation about the first axis line (for forward/upward tilt) and rotation about the second axis line (for horizontal/vertical orientation). This segmentation allows each axis to handle a specific orientation adjustment, providing comprehensive display flexibility while keeping each individual rotation mechanism relatively simple and manageable.
Solution Approach 2:
The mechanism transitions from a single-axis rotation to a dual-axis rotation system. The second axis line, which intersects with the first axis line, adds another dimension of rotational freedom. This enables the display unit to accommodate various image orientations (horizontal and vertical) in addition to tilt adjustments, significantly improving display orientation flexibility without requiring an overly complex mechanism.
Data Source
AI summary
A swing member is supported by a base member while being rotatable about a first axis line provided along a first direction. A rotation member is supported by the swing member while being rotatable about a second axis line provided along a second direction. A unit support member is coupled to the rotation member, and a display unit including a rectangular screen is fixed thereto. The unit support member is, together with the rotation member and the swing member, rotatable about the first axis line between a forward attitude in which the screen faces toward a front of a target device and an upward attitude in which the screen faces upwardly. The unit support member is, together with the rotation member, rotatable about the second axis line between a horizontal attitude in which the screen becomes horizontally long and a vertical attitude in which the screen becomes vertically long.