E-paper Secondary Screen Structure for Low Power Double-Sided Mobile Display
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Solution Overview
Problem
Existing double-sided display devices for mobile phones face issues with high power consumption and complex, bulky secondary screen structures, particularly when using liquid crystal displays.
Innovation Solution
A secondary screen structure incorporating an e-paper screen, a touch control unit, and a solar energy unit, connected via a secondary screen driving unit, which is attached to the back of the device, allowing for double-sided display with reduced power consumption and simplified design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If liquid crystal display is used in secondary display, then displaying on double-sides is achieved, but power consumption is large
Solution Approach 1:
The patent changes the display technology parameter from liquid crystal display to e-paper display. This parameter change fundamentally alters the power consumption characteristics, enabling secondary display with significantly reduced power consumption while maintaining double-sided display capability.
Solution Approach 2:
The patent employs e-paper display technology which uses electrochromic particles that can be switched between transparent and opaque states. This allows the display to maintain images without continuous power supply, effectively treating the display medium as a low-power, disposable-like component that doesn't require continuous energy input.
2Adaptability or versatility
If liquid crystal display is used in secondary display, then displaying on double-sides is achieved, but structure is complicated and bulky
Solution Approach 1:
The patent changes the display technology parameter from liquid crystal display to e-paper display. This parameter change simplifies the overall structure by eliminating complex liquid crystal components while maintaining the essential double-sided display function.
Solution Approach 2:
The patent extracts and removes the complex liquid crystal display subsystem from the secondary display implementation. By taking out the liquid crystal components and replacing them with e-paper technology, the structure becomes simpler and less bulky while preserving the double-sided display capability.
3Adaptability or versatility
If liquid crystal display is used in secondary display, then displaying on double-sides is achieved, but the secondary screen structure is bulky
Solution Approach 1:
The patent changes the display technology parameter from liquid crystal display to e-paper display. This parameter change results in a more compact secondary screen structure with reduced volume, making it suitable for mobile devices while maintaining double-sided display functionality.
Solution Approach 2:
The patent employs e-paper display technology which uses electrochromic particles that can be switched between transparent and opaque states. This allows the display to maintain images without continuous power supply, effectively treating the display medium as a low-power, disposable-like component that doesn't require continuous energy input.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The e-paper screen structure achieves low power consumption and a compact design, enabling efficient double-sided display on mobile phones, with the solar energy unit providing power and the touch control unit facilitating input, while maintaining a thin and user-friendly format.
Implementation Method 1
a solar energy unit layer configured to supply power for the e-paper layer via the secondary screen driving unit
Data Source
AI summary
The present disclosure discloses a secondary screen structure of a display device, a double-sided display device and a method for manufacturing an e-paper screen. The secondary screen structure of the display device includes an e-paper screen and a secondary screen driving unit connected with each other. The e-paper screen includes an e-paper layer, a touch control unit layer and a solar energy unit layer. The e-paper layer is controlled by the secondary screen driving unit to display. The touch control unit layer may input instructions to the secondary screen driving unit. The solar energy unit layer may supply power for the e-paper layer.