Display Device Standby Backlight Segmentation for Power Reduction
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Solution Overview
Problem
Display devices in standby mode consume high power and incur hardware loss when frequently woken up to display information like time, as they cannot display content without transitioning to normal mode.
Innovation Solution
A display device with a backlight component comprising a standby display backlight and a normal display backlight, controlled by a display controller that switches between modes using a mode controller, signal switcher, and electromagnetic switches, allowing low-power standby display of basic information like date and time without full panel activation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the display device wakes up from standby state to normal display state to show information, then the user can obtain time information, but the power consumption increases and hardware loss occurs
Solution Approach 1:
The patent segments the display device into two independent display systems: a main display panel for normal full-screen display, and a standby display layer (electronic paper display) for showing time and basic information. This segmentation allows the device to display information in standby state without activating the entire display system, thereby reducing power consumption while maintaining information accessibility.
Solution Approach 2:
The patent implements dynamic switching between two display modes: normal display mode using the main display panel, and standby display mode using the electronic paper display layer. The system dynamically selects the appropriate display mode based on user needs, allowing information to be displayed in standby state without transitioning to full normal mode, thus reducing power consumption and hardware stress.
2Loss of information
If the display device wakes up frequently to display information, then the user can access time information, but hardware loss increases
Solution Approach 1:
The patent divides the display functionality into two separate systems: the main display panel for normal operation and the standby display layer for information display in standby state. This segmentation eliminates the need for frequent wake-up transitions, reducing hardware stress and improving reliability while maintaining continuous information display capability.
Solution Approach 2:
The system dynamically switches between display modes based on operational state. In standby state, the electronic paper display layer handles information display without activating the main display panel, reducing the frequency of hardware activation and extending hardware lifespan while ensuring information remains accessible.
3Use of energy by moving object
If the display device remains in standby state to save power, then power consumption is reduced, but the device cannot display information
Solution Approach 1:
The patent segments the display system into a main display panel and a standby display layer with independent functionality. The standby display layer can display time and basic information independently without requiring the main display panel to activate, thus maintaining information display capability in standby state while minimizing power consumption.
Solution Approach 2:
The system implements dynamic mode switching where the electronic paper display layer becomes active for information display in standby state, while the main display panel remains inactive. This dynamic allocation of display functions enables continuous information display without sustained high power consumption.
4Loss of information
If the display device transitions to normal mode to display information, then full display functionality is available, but power consumption and hardware stress increase
Solution Approach 1:
The patent segments the display system into functionally independent components: a main display panel for normal full-screen operation and a standby display layer for basic information display. This segmentation allows the system to handle information display in standby state without activating the complete display system, reducing operational complexity while maintaining full functionality when needed.
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
Reduces power consumption and hardware stress by enabling low-power standby mode display of essential information, minimizing hardware loss and maintaining functionality without frequent transitions to normal mode.
Implementation Method 1
the signal switcher includes a standby display electromagnetic switch and a normal display electromagnetic switch
Data Source
AI summary
A display device is provided, including a display panel and a backlight component configured to provide a backlight to the display panel and a display controller. The backlight component includes a standby display backlight component and a normal display backlight component with the standby display backlight component being configured to provide the backlight to the display panel during a standby display mode. The display controller includes a display driver, a data memory, a signal switcher, and a mode controller configured to control the display panel to switch between a normal display mode and the standby display mode.