Dual-Screen Mobile Device Camera Display Management
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Solution Overview
Problem
Dual-screen mobile devices lack an efficient method to enhance photography experiences by allowing simultaneous display of captured images and assistance information on both surfaces, leading to suboptimal user interaction and photograph quality.
Innovation Solution
A mobile device with cameras and display screens on both surfaces, where the image from one camera is displayed on the opposite surface, and assistance information is shown on the same surface, allowing users to adjust their expressions and postures for improved photography, with options for displaying captured images or preset assistance information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the captured image is displayed on the same surface as the target camera, then the user can see the image immediately, but the subject cannot see their image to adjust expressions and postures
Solution Approach 1:
The patent utilizes the third dimension by displaying the captured image on the opposite surface of the dual-screen mobile device. When the rear camera captures an image, it is displayed on the front screen, allowing the subject to see their image and adjust expressions while the user can still operate the device normally. This spatial separation resolves the conflict between immediate image viewing and subject self-adjustment.
2Loss of information
If both screens display captured images simultaneously, then both user and subject can see the image, but power consumption increases significantly
Solution Approach 1:
The patent applies local quality by selectively displaying information on different screens based on the shooting mode. In normal shooting mode, only the front screen displays the captured image while the rear screen remains off or displays minimal information. In selfie mode, the rear screen displays the image. This selective display strategy ensures both user and subject can see the image when needed while minimizing overall power consumption.
Solution Approach 2:
The system dynamically adjusts which screen displays the captured image based on the shooting mode detected by the processor. The display configuration changes from static to dynamic, switching between front-screen-only display for normal shooting and dual-screen or rear-screen display for selfie mode, thereby optimizing power consumption according to actual usage scenarios.
3Loss of information
If assistance information is displayed on the same surface as the target camera, then the user can see the information clearly, but the subject cannot see their image for adjustment
Solution Approach 1:
The patent displays assistance information on the front screen while the captured image is displayed on the rear screen during selfie mode. This spatial separation across opposite surfaces allows the subject to see their image on the rear screen for expression adjustment while the user can view assistance information on the front screen, resolving the information display conflict.
4Reliability
If the rear screen is always on to display captured images, then the subject can always see their image, but power consumption increases
Solution Approach 1:
The system dynamically controls the rear screen's display state based on the shooting mode. The processor detects whether a selfie is being taken and only activates the rear screen to display the captured image when necessary. During normal shooting mode, the rear screen remains off or in sleep mode, significantly reducing power consumption while still providing subject image visibility when needed.
Data Source
AI summary
A mobile device and a photographing method thereof are provided for managing display of data between two oppositely provided display screens. Two opposite surfaces of the mobile device are both provided with a display screen and a camera. After starting a target camera, the mobile device displays an image captured by the target camera on a screen located on the opposite surface of the mobile device from the target camera, and also display assistance information for photographing on the other screen located on the same surface of the mobile device as the target camera. The instruction for photographing comprises an identifier of the target camera. The assistance information may be the image captured by the target camera, or other preset assistance information used to improve the photographing effect.