Dynamic Display Module Brightness Control Under Limited Power
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Solution Overview
Problem
Display devices with LED modules face challenges in maintaining peak brightness when installed in locations with limited power supply, as existing systems uniformly reduce peak gain, leading to decreased brightness.
Innovation Solution
A display device with a memory storing current and brightness information for each display module, and processors that identify and control peak brightness values based on different power supply situations, ensuring higher peak brightness in power-limited conditions by optimizing the operation of driving modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by stationary object
If peak gain is uniformly reduced in power-limited environments, then power consumption is controlled, but peak brightness decreases
Solution Approach 1:
The patent applies local quality by differentiating brightness control across different display modules based on their individual power consumption characteristics. Instead of uniformly reducing peak gain across all modules, the system identifies specific modules with lower power consumption and maintains their peak brightness, while adjusting only those modules that would exceed power limits. This localized approach preserves overall peak brightness while controlling total power consumption.
Solution Approach 2:
The system dynamically adjusts peak gain settings based on real-time power supply conditions and individual module characteristics. The processor continuously monitors power consumption of each display module and adapts the peak brightness allocation accordingly, transitioning between different operating states (full brightness, reduced brightness, or selective brightness adjustment) based on current power availability and load conditions.
2Illumination intensity
If peak brightness is maintained in power-limited environments, then display performance is preserved, but power consumption increases
Solution Approach 1:
The patent changes the parameter of peak gain allocation dynamically based on power supply conditions. The system stores multiple peak brightness values corresponding to different power supply situations (first power supply situation with higher power, second power supply situation with limited power) and selects appropriate brightness levels by adjusting the peak gain parameter. This allows the system to maintain acceptable display performance while adapting to varying power constraints through parameter optimization.
3Use of energy by stationary object
If existing systems reduce peak gain uniformly, then power consumption is controlled, but display quality becomes inconsistent across modules
Solution Approach 1:
The patent applies local quality by differentiating brightness control across different display modules based on their individual power consumption characteristics. Instead of uniformly reducing peak gain across all modules, the system identifies specific modules with lower power consumption and maintains their peak brightness, while adjusting only those modules that would exceed power limits. This localized approach preserves overall peak brightness while controlling total power consumption.
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
Maintains peak brightness levels even in power-limited environments by dynamically adjusting the operation of LED modules, ensuring consistent display performance across varying power conditions.
Implementation Method 1
A light emitting diode (LED) is a semiconductor light-emitting device that converts electric current into light.
Data Source
AI summary
A display device includes a display including a plurality of display modules, a driver including a plurality of driving modules connected to the plurality of display modules. The display device identifies a first peak brightness value corresponding to a first display module among the plurality of display modules based on the first peak brightness information, identifies a second peak brightness value corresponding to the first display module based on the second peak brightness information, and controls the plurality of driving modules such that the first display module has a peak brightness value that is higher from among the first peak brightness value and the second peak brightness value based on the current information of the plurality of display modules stored in the memory.