Electrochromic Front Screen Layer for Standby Power Reduction
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Solution Overview
Problem
Current terminal designs with front screens that match the housing color in standby mode consume excessive power, reducing the terminal's service duration.
Innovation Solution
Incorporating a color-changing layer, such as an electrochromic or photochromic layer, within the front screen that switches between a target color and transparent state with minimal power consumption, allowing the front screen to display a consistent color with the housing while minimizing power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the front screen is always in a running state to display a target color matching the housing color, then the color consistency between the front screen and housing is improved, but the power consumption is increased
Solution Approach 1:
The front screen dynamically adjusts its state between running and standby modes. In standby mode, the display screen turns off while the color changing layer maintains the target color appearance. This dynamic state transition allows the system to achieve color consistency without continuous power consumption, resolving the contradiction between stable color display and energy usage.
Solution Approach 2:
The patent applies a color changing layer (electrochromic or photochromic) that can change its optical properties to match the housing color. This layer maintains the appearance of color consistency with the housing even when the display screen is off, eliminating the need for continuous power consumption while preserving the aesthetic matching between screen and housing.
2Stability of the object's composition
If the front screen displays a target color in standby state, then the appearance consistency with housing is improved, but the service duration is reduced
Solution Approach 1:
The system dynamically switches between active display mode and standby mode with color changing layer. During standby, the display screen remains off while the color changing layer maintains appearance consistency. This dynamic operation extends service duration by minimizing power consumption during periods when full display functionality is not required, while preserving appearance consistency.
Solution Approach 2:
The color changing layer provides passive color matching capability that does not require continuous power supply. This allows the terminal to maintain appearance consistency with the housing throughout extended periods, including standby states, without the power consumption that would otherwise limit service duration.
3Use of energy by moving object
If the display screen is turned off in standby mode, then the power consumption is reduced, but the color consistency with housing is lost
Solution Approach 1:
The color changing layer is specifically designed to change its optical properties to match the housing color when activated. This allows the front screen to maintain color consistency with the housing even when the display screen is completely off, enabling power savings without sacrificing aesthetic appearance matching.
Solution Approach 2:
The front screen is segmented into two functional layers: the display screen and the color changing layer. The display screen can be turned off to save power, while the color changing layer remains active (or is separately controlled) to maintain color consistency. This segmentation allows independent control of power consumption and appearance matching functions.
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 color-changing layer enables the front screen to display a target color with significantly reduced power consumption, extending the terminal's service duration by minimizing power usage during standby mode.
Implementation Method 1
When the first transparent conducting layer receives a voltage, a first ion stored at the ion storage layer enters the electrochromic layer through the ion conductor layer. When the electrochromic layer receives the first ion, the electrochromic layer switches from the transparent state to the target color.
Implementation Method 2
Light emitted by the display screen is irradiated onto the photochromic layer, and the photochromic layer is configured to change a color when receiving the light emitted by the display screen.
Data Source
AI summary
A terminal is provided, and the terminal includes a housing, a front screen, a circuit board, and a power supply. The front screen is disposed on the housing, both the circuit board and the power supply are disposed inside the housing, and the power supply is connected to the circuit board. The front screen includes a toughened glass, a color changing layer, and a display screen that are sequentially stacked. The color changing layer is connected to the circuit board, and can change a color when receiving power supply. The color changing layer is disposed in the front screen, and may change a color when receiving the power supply from the circuit board. The color changing layer is configured to change only a color and cannot display a complex image, and power consumption of the color changing layer is far less than that of the display screen.