Controller Device Finger Rest Grip Design
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Solution Overview
Problem
Large-screen portable terminal devices become difficult to hold due to their increased size, making it challenging for users to operate them comfortably.
Innovation Solution
A controller device with a plate-shaped housing featuring a display section on the front and projecting portions on the back, allowing users to rest the device on their fingers, providing a secure grip and enabling easy operation with thumbs and other fingers, while also incorporating engagement holes for additional devices to ensure stable connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the display section is enlarged to provide a larger screen, then the display area is improved, but the device becomes more difficult to hold and operate
Solution Approach 1:
The housing is divided into multiple functional regions: a display section on the front side and projecting portions on the back side. This segmentation allows the large device to be held by resting the projecting portions on the user's fingers, effectively dividing the holding function between the display section (viewed by eyes) and the projecting portions (resting on fingers), thus resolving the contradiction between large display area and ease of holding.
2Area of stationary object
If the device size is increased to accommodate larger screens, then the display capability is improved, but the grip stability deteriorates
Solution Approach 1:
The solution moves from a two-dimensional flat housing to a three-dimensional structure by adding projecting portions that extend from the back side of the housing. This dimensional change creates multiple contact points (projecting portions resting on fingers) in addition to the display section, providing stable grip and preventing the device from rotating or slipping, thus resolving the contradiction between large screen size and grip stability.
Data Source
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AI summary
A terminal device 7 is a controller device to be operated by a user. The terminal device 7 includes a generally plate-shaped housing 50, an LCD 51, and a projecting portion (an eaves portion 59). The LCD 51 is provided on the front side of the housing 50. The projecting portion is provided so as to project at least at left and right positions on a back side of the housing 50 above the center of the housing 50. When the user holds the left and right portions of the housing 50 with respect to the LCD 51, the user can easily hold the terminal device 7 by holding it so as to allow the projecting portion to rest on the fingers.