Decorative Display Light Control Under Changing Ambient Reflection
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Solution Overview
Problem
Existing display devices struggle with reduced display quality due to intense outside light reflection overpowering display light, making it difficult for users to recognize the display, especially in varying lighting conditions.
Innovation Solution
A display device with a decorative layer that measures outside light intensity and adjusts display light intensity and pattern visibility through a controller, using a backlight unit or light emitting elements to optimize display quality based on measured light conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If display light intensity is increased to facilitate visual recognition in bright conditions, then visibility of display light is improved, but display quality is reduced when outside light becomes weak due to excessive intensity
Solution Approach 1:
The display device dynamically adjusts the intensity of display light based on real-time measurement of outside light intensity. The control unit modifies display parameters adaptively to match ambient lighting conditions, ensuring optimal visibility without excessive intensity that would degrade display quality in dim environments.
Solution Approach 2:
The measurement unit provides feedback about outside light intensity to the control unit, which then adjusts display light intensity accordingly. This closed-loop control system ensures that display light is optimized for current lighting conditions, preventing both insufficient visibility in bright light and excessive intensity in dim light.
2Illumination intensity
If display light intensity is increased to overcome reflection light from outside light, then visual recognition of display light is improved, but power consumption increases
Solution Approach 1:
The system dynamically adjusts display light intensity based on measured outside light conditions rather than maintaining fixed high intensity. This adaptive approach reduces power consumption when high intensity is not needed while ensuring sufficient visibility when outside light is intense.
Solution Approach 2:
The measurement unit continuously monitors outside light intensity and provides feedback to the control unit, which adjusts display light intensity accordingly. This feedback mechanism prevents unnecessary power consumption by only increasing display intensity when actually required to overcome reflection light.
3Adaptability or versatility
If a decorative layer with pattern is added to display patterns when display is off, then aesthetic function is improved, but reflection light from outside light becomes more intense making display light harder to recognize
Solution Approach 1:
The measurement unit detects outside light intensity and provides feedback to the control unit, which then adjusts display light intensity to compensate for increased reflection from the decorative layer. This ensures that display light remains visible despite the presence of the patterned decorative layer that enhances aesthetics but also increases reflection.
Solution Approach 2:
The control unit changes display light parameters (intensity) based on measured outside light conditions and the presence of the decorative layer. This parameter adjustment compensates for the increased reflection caused by the decorative layer, maintaining display light visibility while preserving the aesthetic function.
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
Improves display quality by enhancing visibility of display light in high outside light conditions while reducing power consumption and maintaining harmony with surroundings, achieving accurate and efficient light adjustment.
Implementation Method 1
a liquid crystal panel 23... which includes a liquid crystal layer 53... the liquid crystal layer 53... changes the polarization direction of transmitted light
Implementation Method 2
a first polarizer 51, a second polarizer 55... having different polarization directions of transmitted light
Data Source
AI summary
A display device includes a display panel, a decorative layer, a measurer, and a display controller. The decorative layer is configured to allow display light from the display panel to transmit and reflect outside light to display a pattern. The measurer is configured to measure an intensity of the outside light. The display controller is configured to control the display light according to an image displayed on the display panel and the intensity of the outside light.