Curved Electronic Paper Display for Mobile Terminal Personalization
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Solution Overview
Problem
Mobile communication terminals lack a means to visually express personal interests and characteristics beyond the LCD screen, leading to dust accumulation issues when separate covers are used.
Innovation Solution
An electronic paper display unit installed in a transparent protective case, allowing for the independent or integrated display of image information on divided regions of the terminal's outer faces, enhancing aesthetics and correcting contrast around the rounded body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a separate cover is attached to the terminal body to express personal interests, then user personalization is improved, but foreign matters such as dusts are easily deposited between the cover and the body
Solution Approach 1:
The patent merges the cover and terminal body into a single integrated structure. The outer face of the terminal body itself is used as the display surface, eliminating the need for a separate detachable cover. This integration maintains personalization capabilities while preventing dust accumulation between separate components.
Solution Approach 2:
The terminal body's outer face serves multiple functions: it acts as both the structural surface and the display surface for image information. This multi-functionality eliminates the need for a separate cover, thereby preventing dust accumulation while still allowing personalization through displayed images.
2Loss of information
If the LCD screen is used to display image information, then information display function is improved, but the ability to express personal interests on the body parts is limited
Solution Approach 1:
The outer face of the terminal body is divided into multiple display regions including a main display region and curved sub-display regions. This segmentation allows different types of information to be displayed in different areas, enabling both functional information display and personal expression simultaneously without interfering with each other.
Solution Approach 2:
The patent extends the display surface from the traditional flat LCD screen area to the curved outer face of the terminal body. By utilizing the three-dimensional surface of the terminal, including rounded edges, the display area is expanded into another spatial dimension, providing additional areas for personal expression while maintaining the LCD's information display capabilities.
3Adaptability or versatility
If the display area is expanded to the outer faces of the terminal body, then personal expression capability is improved, but contrast correction at the edge becomes more difficult
Solution Approach 1:
The patent applies different display characteristics to different regions of the outer face. The curved sub-display regions have different contrast requirements compared to the main display region. The system adjusts image information locally for each region, applying appropriate contrast correction parameters specific to the curvature and position of each display area.
Solution Approach 2:
The patent dynamically adjusts display parameters including contrast, brightness, and image curvature based on the specific region of the outer face. For curved sub-display regions, the system modifies image parameters to compensate for the curvature effect, ensuring consistent visual quality across the entire expanded display area.
Data Source
AI summary
An electronic paper display unit includes a protective case, which is made of a transparent material, a display, which is installed in the protective case, is powered to display desired image information, and includes a plurality of divided regions, and a control module, which is electrically connected with the display, and includes a first mode transmitting a divided mode signal such that many pieces of image information are independently displayed on the respective divided regions and a second mode transmitting an integrated mode signal such that one piece of image information is displayed throughout the overall divided regions. Further, a mobile communication terminal can visually display various pieces of image information thereon according to selection of a user.