Flexible Display Screen Extension Measurement and Image Adjustment
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Solution Overview
Problem
Flexible display devices face issues with power consumption and image matching when only part of the display area extends out of the housing, leading to increased power usage and reduced lifetime due to mismatched image sizes and observation areas.
Innovation Solution
A display device with a housing, a flexible display screen, a driving device, and a measuring component that includes an induction coil, resistor, and magnetic field generator to measure the length of the display screen extending out of the housing, allowing the driving device to adjust the image size to match the display area and retract the screen for space-saving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the display screen is extended out of the housing for display, then the display area is increased, but the power consumption increases and the display screen lifetime decreases due to mismatched image sizes and observation areas
Solution Approach 1:
The patent employs a measuring component to detect the extension length of the display screen and feeds this information back to the driving device. The driving device then adjusts the image size accordingly to match the visible display area, ensuring optimal power consumption by displaying images only when the screen is extended and at appropriate sizes.
Solution Approach 2:
The system dynamically adjusts the image size based on the real-time extension state of the flexible display screen. When the screen is extended, the image size increases to match the larger visible area; when retracted, the image size decreases or stops updating, thereby reducing power consumption and extending display screen lifetime.
2Area of stationary object
If the display screen is extended out of the housing, then the display area is increased, but the image size matching becomes problematic leading to reduced observation area utilization
Solution Approach 1:
The measuring component provides real-time feedback on the display screen's extension length, enabling the driving device to precisely adjust the image size to match the actual visible area. This feedback mechanism ensures accurate image-size-to-display-area matching, eliminating the problem of mismatched dimensions and maximizing observation area utilization.
Solution Approach 2:
The system changes the image size parameter dynamically based on the extension length of the display screen. By adjusting this parameter in real-time according to the measured position, the system achieves precise matching between image dimensions and the visible display area, resolving the image size matching problem.
3Volume of moving object
If the flexible display screen is used for curling and storage, then the space saving is achieved, but the measurement of extension length becomes necessary to control the driving device
Solution Approach 1:
The patent introduces a measuring component as an intermediary between the flexible display screen and the driving device. This component measures the extension length and transmits the data to the driving device, which uses it to control image display. This intermediary enables precise control of the driving device based on screen position, facilitating both space-saving curling storage and accurate display control.
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 solution effectively measures and adjusts the display screen's length to match image sizes, reducing power consumption and prolonging the display screen's lifetime by ensuring the entire image is visible within the observation area and allowing for convenient storage.
Implementation Method 1
a magnetic field generator arranged at the opening, and while the display screen is extending out of the housing, or retracting into the housing through the opening, at least a part of a magnetic field generated by the magnetic field generator overlaps with an area surrounded by the induction coil
Implementation Method 2
the induction coil is arranged on the display screen and is a closed planar coil, the resistor is connected in series with the induction coil, and the voltage detecting component is configured to detect voltage across the resistor
Data Source
AI summary
A display device is disclosed. The display device includes a housing, a display screen, a driving device, and a measuring component, wherein an opening is arranged on the housing, at least a part of the display screen is located in the housing, the display screen is connected with the driving device, the driving device is configured to drive the display screen to extend out of the housing, and/or to retract into the housing through the opening, and the measuring component is configured to measure a length of the display screen extending out of the housing.