Dynamic Display Switching for Rear Camera Live View
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Solution Overview
Problem
There is a demand for a method to ensure the availability of a rear display when a photographing function is used in electronic devices with cameras on the rear surface, as existing devices often do not effectively utilize the rear display during photography.
Innovation Solution
A user terminal apparatus with a main display area on the front surface and a sub display area extending from the main display area to the rear surface, along with a camera, which displays a live view on either the main or sub display area and adjusts the display based on the device's orientation, allowing seamless photography and user interface management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a camera is provided on the rear surface of the electronic device, then selfie photographing can be easily performed and users can photograph while checking the photography state using the rear display, but the rear display availability during photographing is not ensured
Solution Approach 1:
The patent implements dynamic switching between front and rear displays based on device orientation. When the device is held horizontally, the rear display shows the live view for selfie photography. When held vertically, the front display is used. This dynamic adaptation ensures the appropriate display is always available for photographing regardless of how the user holds the device.
Solution Approach 2:
The system changes the display parameter (which display shows the live view) based on the orientation parameter detected by sensors. The processor monitors device orientation and automatically switches the active display between front and rear displays, ensuring the rear display is utilized when conditions are favorable for selfie photography.
2Ease of operation
If a display is provided on the rear surface of the electronic device, then selfie photographing may be easily performed, but the effective utilization of the rear display during photography is insufficient
Solution Approach 1:
The rear display is designed to serve multiple functions: it can display the live view during selfie photography when the device is held horizontally, and serve as a secondary display for other applications when held vertically or when not used for photography. This multi-functionality ensures high utilization efficiency of the rear display across different usage scenarios.
Solution Approach 2:
The system dynamically assigns the rear display to different functions based on real-time conditions. During selfie photography in horizontal orientation, it displays the live view. In vertical orientation or non-photography modes, it can display notifications, messages, or other content, maximizing its utility throughout the device's operation.
3Device complexity
If the live view is displayed on a single display area, then the display structure is simple, but the adaptability to different device orientations is limited
Solution Approach 1:
The patent implements a dynamic display switching mechanism where the processor automatically selects which display area (front or rear) shows the live view based on the detected device orientation. This maintains relatively simple display hardware while achieving high adaptability to different orientations through software-controlled switching.
Solution Approach 2:
The system changes the display configuration parameter based on orientation detection. When the device is rotated from vertical to horizontal position, the system parameter for active display area is changed from front display to rear display, enabling seamless adaptation to user's holding position without adding complex hardware.
Data Source
AI summary
A user terminal apparatus and a control method thereof are provided. The user terminal apparatus includes a display including a main display area which is disposed on a front surface of the user terminal apparatus, and a sub display area which extends from one side of the main display area and is disposed on at least one area of a rear surface of the user terminal apparatus, a camera configured to photograph an image, and a processor configured to display a live view acquired through the camera on one of the main display area or the sub display area, and control the display to display, in response to an orientation of the user terminal apparatus being changed, the live view on another one of the main display area or the sub display area.