Flexible Display Expansion for Camera Preview and Review
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Solution Overview
Problem
Flexible display devices face challenges in easily expanding or reducing their screen size according to user needs, which limits their functionality, especially during tasks like camera shooting where simultaneous image preview and editing are inconvenient.
Innovation Solution
A flexible display device with a sensing unit that detects expansion or reduction, allowing a controller to manage the display's size and functionality, such as displaying preview images, capturing images, and providing image editing menus based on the expansion distance, enabling continuous image capture and real-time viewing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the display area is fixed, then the device structure is simple, but it is impossible to check pictures during shooting and enter additional screens
Solution Approach 1:
The display unit transitions from a fixed static state to a dynamic expandable state. When the user pulls the display unit, it expands from a first area to a second area, enabling different operational modes (shooting mode vs. picture review mode) within a single continuous display surface, thus resolving the contradiction between fixed simplicity and operational flexibility.
Solution Approach 2:
The display area is extended in the spatial dimension by allowing the display unit to expand outward. This dimensional change enables the display to provide both a compact viewing area for shooting and a larger area for picture review without requiring separate devices or complex multi-screen mechanisms.
2Adaptability or versatility
If the display is expanded to provide more information, then user convenience is improved, but the device size and complexity increase
Solution Approach 1:
The display unit serves multiple functions through a single expandable structure. It acts as both a compact preview screen during shooting and an expanded review display for picture evaluation. This multi-functionality is achieved through the pull-to-expand mechanism that transforms one component into different operational states, avoiding the need for separate dedicated displays for each function.
3Ease of operation
If a separate movable image display sheet is used for picture review, then picture checking is enabled, but the operation becomes complicated and space-consuming
Solution Approach 1:
The picture review function is merged with the main display unit rather than using a separate movable display sheet. The display unit itself expands to provide the review area, eliminating the need for independent display mechanisms and reducing operational complexity while maintaining the convenience of picture checking.
Data Source
Figure 1A~1C
Figure 2A
Figure 2B
AI summary
Provided is an operating method of a flexible display device including a display. The method includes: displaying, at a preview area of the display, a preview image corresponding to an object; expanding the display in an first direction according to detecting the display is expanded in the first direction; and capturing an image of the object when the display is expanded in the first direction.