External Display for Smartphone Camera Positioning and Shooting Information
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Solution Overview
Problem
The limited display area of portable information processing devices like smartphones hinders the simultaneous display of camera-through images and other essential shooting information, making it difficult to maintain the correct camera position and angle during use.
Innovation Solution
An external display device, detachably connected to the smartphone, provides a secondary display unit that communicates with the camera application to show additional shooting information, allowing for improved user interaction and camera positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a single display device is used in the information processing device, then the device structure remains simple, but the display area is limited and cannot show both camera-through image and shooting information simultaneously
Solution Approach 1:
The display function is segmented between two independent display devices: the built-in display of the information processing device and the external display device. The built-in display shows the camera-through image while the external display device shows shooting information, allowing both to operate independently without interfering with each other.
Solution Approach 2:
The solution moves from a single two-dimensional display plane to multiple display planes by introducing an external display device. This spatial dimensionality change allows simultaneous display of different information types on separate physical displays, effectively expanding the total display area.
2Ease of operation
If the user directly holds the information processing device to use the camera application, then the operation is simple, but the camera position and angle are limited and it is difficult to maintain correct positioning
Solution Approach 1:
The external display device acts as an intermediary between the user and the camera system. By providing a separate display that shows shooting information and camera-through images, it enables the user to maintain proper camera positioning while operating the device, as the display can be positioned optimally for viewing without affecting camera orientation.
3Ease of manufacture
If the user directly holds the information processing device, then no additional equipment is needed, but it is difficult to see the camera-through image displayed on the built-in display
Solution Approach 1:
The viewing function is segmented from the camera function. The built-in display handles camera operation while the external display device provides dedicated viewing capability. This separation allows the external display to be positioned and oriented optimally for viewing the camera-through image, solving the visibility problem.
Solution Approach 2:
The external display device creates a copy of the camera-through image and shooting information from the built-in display. This copy can be displayed on a separate device with optimal positioning and sizing for viewing, allowing the user to see the image clearly without compromising the camera's positioning.
Data Source
AI summary
A sub display (10) (corresponding to an example of an “external display device”) includes: a display unit (11) that is detachably provided together with a smartphone (100) (corresponding to an example of an “information processing device”) including a camera (101), with respect to a holding portion (50) provided so as to be grippable by a user; a communication control unit (18a) that controls communication with a camera application using the camera (101) operating on the smartphone (100); and a display control unit (18c) that causes the display unit (11) to display a sub screen (corresponding to an example of an “external display screen”) generated by the camera application and received via the communication control unit (18a).