Flexible Display Brightness Control Using Dual Bend Sensors
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Solution Overview
Problem
Existing display devices lack the ability to automatically adjust brightness in response to bending, which can affect power consumption and display quality, especially in flexible display terminals.
Innovation Solution
Incorporating a sensor element with bend sensors that adjust resistance based on bending direction, connected to a transistor and capacitor, allowing for dynamic control of luminance in a display terminal with a combination of liquid crystal and light-emitting elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the display device uses a combination of reflection type element and light emission type element, then display quality in different light environments is improved, but power consumption increases due to the need to operate both element types
Solution Approach 1:
The display device automatically detects bending state through the sensor element and autonomously adjusts luminance without requiring external control signals or user intervention, thereby reducing control circuit complexity and power consumption while maintaining optimal display quality
Solution Approach 2:
The device dynamically changes the luminance parameter of the light-emitting element based on bending detection, adjusting it to compensate for light reflection changes caused by bending, thus maintaining display quality while minimizing energy consumption through selective operation
2Adaptability or versatility
If the display portion is bent, then flexibility and adaptability are improved, but display quality deteriorates due to changes in light reflection
Solution Approach 1:
The sensor element provides real-time feedback on the bending state to the control circuit, which then adjusts the luminance of the light-emitting element to compensate for display quality degradation, creating a closed-loop control system that maintains optimal performance during bending
Solution Approach 2:
The light-emitting element is activated in advance to compensate for the expected decrease in light reflection when bending occurs, counteracting the negative effect before it significantly impacts display quality
3Illumination intensity
If manual adjustment of brightness is implemented, then display quality can be optimized, but operation complexity and user burden increase
Solution Approach 1:
The display device performs automatic brightness adjustment through integrated sensor elements and control circuits that detect bending state and autonomously modify luminance, eliminating the need for manual user intervention and simplifying operation
Solution Approach 2:
The sensor element continuously monitors bending state and provides feedback to the control circuit, which automatically adjusts brightness levels accordingly, creating a self-regulating system that optimizes display quality without user 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
This solution enables automatic brightness adjustment, reducing power consumption and maintaining display quality by compensating for changes in light reflection due to bending, without requiring external circuit operations or video data rewriting.
Implementation Method 1
a first bend sensor whose resistance is changed in accordance with bending of the display portion in a convex direction
Implementation Method 2
a second bend sensor whose resistance is changed in accordance with bending of the display portion in a concave direction
Implementation Method 3
The reflection type element is used in bright environments
Implementation Method 4
the light emission type element is used in dark environments
Data Source
AI summary
An information terminal capable of automatically adjusting the brightness of a display portion in accordance with bending of the display portion is provided. The information terminal includes a display portion that includes a first pixel, a second pixel, and a sensor element. The first pixel includes a liquid crystal element. The second pixel includes a light-emitting element. The sensor element includes a first bend sensor whose resistance is changed in accordance with bending of the display portion in a convex direction and a second bend sensor whose resistance is changed in accordance with bending of the display portion in a concave direction. The luminance of the light-emitting element is controlled in accordance with an output of the sensor element.