Dual LCD Mobile Terminal Automatic Display Switching
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Solution Overview
Problem
Conventional mobile terminals with dual LCDs are limited in usability and user convenience due to the inability to comprehensively utilize various screens for additional functions, as they typically rely on a single small LCD for display, restricting the operation of multiple functions simultaneously.
Innovation Solution
A method and apparatus for automatic on/off control of dual LCDs in a mobile terminal using a sensing unit, allowing for the simultaneous display of additional functions based on rotation angles and user input, enabling the switching between display areas on the front and rear surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single small LCD is used for display in mobile terminals, then the device structure remains simple, but the usability and user convenience decrease due to inability to comprehensively utilize various screens for additional functions
Solution Approach 1:
The mobile terminal is divided into multiple display zones including a main LCD screen and additional display areas. The display unit is segmented into different functional regions that can independently show different content, allowing comprehensive utilization of screen real estate while maintaining a relatively simple overall structure.
Solution Approach 2:
The patent utilizes the third dimension by incorporating display areas on multiple surfaces of the mobile terminal (front surface, rear surface, and side surfaces). This spatial dimensionality change allows the device to display multiple functions simultaneously without increasing the complexity of individual display components.
2Ease of operation
If multiple display areas are implemented for additional functions, then user convenience improves through simultaneous display of multiple functions, but the device complexity increases
Solution Approach 1:
The display unit is designed as a multi-functional system where a single display structure serves multiple purposes: main LCD for primary information, additional display areas for secondary functions, and configurable display modes. This universality allows the system to handle various display scenarios without requiring separate dedicated display components for each function.
Solution Approach 2:
The patent implements dynamic display control where the display areas can be flexibly configured and switched between different functions based on user needs. The system can dynamically adjust which areas display which content, enabling adaptive usability while managing complexity through software-controlled flexibility rather than hardware multiplication.
3Adaptability or versatility
If additional display areas are added for camera mode and other functions, then the comprehensiveness of function display improves, but the manufacturing complexity increases
Solution Approach 1:
The patent applies local quality by implementing additional display areas with specific functions in specific locations on the mobile terminal. Each display area is optimized for its intended purpose (e.g., camera mode display, messaging display) while using similar display technologies, allowing customized functionality without requiring completely different manufacturing processes for each display component.
Data Source
AI summary
An apparatus and method for automatically controlling screens displayed on two display units of a mobile terminal are provided. The method includes receiving an input requesting to operate a camera of the mobile terminal; providing a video image that is obtained via the camera through a first display area disposed in a first surface of the mobile terminal or a second display area disposed in a second surface being opposite to the first surface of the mobile terminal, based on a camera mode, wherein the camera mode includes a first mode and a second mode; while providing the video image obtained via the camera through the first display area or the second display area, detecting a rotation of the mobile terminal; and in response to detecting the rotation, switching a display area providing the video image between the first display area and the second display area.