Portable Display Device with L-Shaped Battery and Hinged Stand
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Solution Overview
Problem
Portable display devices face challenges in maximizing battery capacity without increasing their size, which affects convenience of carrying and usage due to limited space utilization and heat dissipation issues.
Innovation Solution
The design includes a portable display device with a metal middle frame, a stand with a hinge, and a keyboard unit with magnetic coupling, along with an L-shaped battery arrangement and heat transfer sheets to enhance space utilization and heat dissipation, allowing for increased battery capacity and improved usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the battery size is increased to maximize battery capacity, then the energy storage is improved, but the overall device size increases which affects convenience of carrying
Solution Approach 1:
The battery is nested within the housing structure by utilizing the internal cavity space formed between the front case, rear case, and middle frame. The battery fits into the hollow space created by the layered case structure, effectively nesting the energy storage component within the existing device framework without increasing external dimensions.
Solution Approach 2:
The battery is positioned in a three-dimensional space utilizing the vertical and depth dimensions created by the layered case structure. The middle frame provides a platform that elevates the battery into the internal cavity, allowing efficient use of available volume in multiple spatial dimensions rather than simply expanding in one direction.
2Temperature
If a cooling fan is mounted to improve heat dissipation, then the thermal management is improved, but the device size and complexity increase
Solution Approach 1:
The active cooling fan component is extracted and removed from the device. Instead of using mechanical active cooling, the design relies on passive heat dissipation through the housing structure and natural convection, eliminating the need for additional cooling components that would increase device size and complexity.
Solution Approach 2:
The housing structure itself serves the heat dissipation function through its design. The metal middle frame and case structure act as heat sinks, conducting and radiating heat away from internal components passively, without requiring external active cooling systems.
3Adaptability or versatility
If a keyboard is included to improve input capability, then the functionality is improved, but the device size and weight increase
Solution Approach 1:
The display unit serves multiple functions by integrating both display and keyboard input capabilities into a single component. The touch-sensitive display acts as both the visual output interface and the input interface, eliminating the need for a separate physical keyboard while maintaining versatile input functionality.
Solution Approach 2:
The keyboard function is merged with the display unit through touch sensitivity. The display surface itself becomes the keyboard interface, combining what were previously separate components (display and keyboard) into a single integrated unit that reduces overall device size and weight.
4Area of stationary object
If the display unit size is increased to improve visibility, then the display quality is improved, but the device size increases which affects portability
Solution Approach 1:
The housing structure provides localized support and spacing around the display unit, allowing the display to be positioned optimally for visibility while the surrounding case structure maintains compact overall dimensions. The front and rear cases create a focused display area without requiring proportional increases in all device 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 configuration enables easy handling and use of the device without additional support, increases battery capacity without size increase, and effectively dissipates heat, enhancing both convenience and performance.
Implementation Method 1
a stand having one end coupled to a lower end of the middle frame via a hinge and configured to rotate about the hinge
Implementation Method 2
a front magnet disposed on a front surface of the middle frame so that a first pole thereof faces the front surface of the middle frame, and a rear magnet disposed on a rear surface of the middle frame so that a first pole thereof faces the rear surface of the middle frame
Data Source
AI summary
According to one aspect of the present invention, a portable display device comprises: a front case having a display unit located on the front surface thereof; a rear case coupled to the rear side of the front case so as to form an electric field part; a middle frame arranged in the electric field art, and including a metal material; a stand having one end, which is hinge-coupled to the lower end of the middle frame, and rotatably moving around the hinge so as to come into contact with the rear side of the middle frame or to be spaced apart from the rear side of the middle frame; and an opening formed on the rear case at a location corresponding to the stand. Therefore, the portable display device can be easily held and used at any place without additionally carrying a separate holding device.