Dual-Mode Display Layout for Visibility and Power Saving
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Solution Overview
Problem
Existing display devices face challenges in reducing power consumption, especially in devices using batteries, and in providing high visibility both indoors and outdoors.
Innovation Solution
A display device with a first display region and a second display region, where the first region includes a reflective liquid crystal element and light-emitting elements, and the second region includes only light-emitting elements, allowing for efficient power usage and high visibility across various lighting conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a transmissive liquid crystal display device with a backlight is used, then visibility is improved, but power consumption increases
Solution Approach 1:
The display device dynamically switches between transmissive and reflective modes based on ambient illuminance conditions. The controller adjusts the operation state of the first and second display elements according to the detected illuminance level, enabling the system to adapt its power consumption and visibility characteristics to match environmental conditions
Solution Approach 2:
The display device incorporates both transmissive (first display element) and reflective (second display element) functionalities within a single device structure. This multi-functional design allows the device to operate effectively across a wide range of illuminance conditions, from dark indoor environments to bright outdoor settings, without requiring separate display devices
2Use of energy by moving object
If a reflective liquid crystal display device is used, then power consumption is reduced, but visibility in low illuminance conditions deteriorates
Solution Approach 1:
The display device dynamically switches between reflective and transmissive modes based on ambient illuminance conditions. When illuminance is low, the controller activates the transmissive first display element to provide sufficient visibility. When illuminance is high, the controller switches to the reflective second display element to minimize power consumption
Solution Approach 2:
The display device incorporates both transmissive and reflective functionalities within a single device structure. This multi-functional design allows the device to operate effectively across a wide range of illuminance conditions, switching between modes to maintain visibility while optimizing power consumption
3Illumination intensity
If light-emitting elements are used in all conditions, then visibility in low illuminance is improved, but power consumption increases unnecessarily in high illuminance
Solution Approach 1:
The display device dynamically adjusts its operation based on ambient illuminance detection. The controller monitors the illuminance level and switches between transmissive and reflective modes accordingly, ensuring that light-emitting elements are only activated when necessary for visibility, thereby avoiding unnecessary power consumption in bright conditions
Solution Approach 2:
The display device changes its operational parameters based on ambient illuminance conditions. By detecting the illuminance level and adjusting the operation state of the first and second display elements, the system optimizes the balance between visibility and power consumption across different lighting environments
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 display device achieves low power consumption by selectively using reflective and light-emitting elements based on lighting conditions, ensuring high visibility and diverse display methods.
Implementation Method 1
a first display element, and a second display element The first display element has a function of reflecting visible light
Implementation Method 2
a second display element and a third display element each have a function of emitting visible light
Data Source
AI summary
A display device includes a first region and a second region adjacent to the first region. A display element included in the first region has a function of reflecting visible light and a function of emitting visible light. A display element included in the second region has a function of emitting visible light. In an electronic device including the display device, the first region is located on a first surface (e.g., top surface) on which a main image is displayed, and the second region is located on a second surface (e.g., side surface) on which an auxiliary image is displayed.