Electronic Device Brightness Transition Control
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Solution Overview
Problem
Human eyes experience discomfort due to abrupt and excessive variations in light flux, making it difficult to adapt to changes in screen brightness, leading to poor user experience.
Innovation Solution
An electronic device method that adjusts screen brightness by determining the difference in light flux over time, enabling an adjustment mode that increases the transition time period and transforms abrupt transitions into gradual ones, based on human eye capability information, to reduce discomfort and improve visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If screen brightness is adjusted abruptly to match environmental light changes, then the display can quickly adapt to ambient conditions, but human eyes experience discomfort and difficulty adapting to the brightness variation
Solution Approach 1:
The system performs preliminary action by detecting ambient light changes and proactively preparing gradual brightness adjustment before the full brightness change is applied. The controller divides the total brightness adjustment into multiple intermediate steps, allowing eyes to adapt progressively rather than experiencing abrupt changes.
Solution Approach 2:
The brightness adjustment transitions from a static, instantaneous change to a dynamic, time-dependent process. The system implements a time-based adjustment mechanism where brightness changes occur over multiple frames (e.g., 3-5 seconds), creating a dynamic adaptation process that matches human physiological response characteristics.
2Object-affected harmful factors
If the transition time period is increased to reduce eye strain, then comfort is improved, but the response time of brightness adjustment to environmental changes is delayed
Solution Approach 1:
The system applies partial action by implementing brightness adjustment in discrete intermediate steps rather than as a single full-change action. The controller applies a portion of the total brightness adjustment at each frame, accumulating the effect over time to achieve the full adjustment while maintaining comfort through progressive exposure.
3Adaptability or versatility
If abrupt brightness variation is applied to quickly respond to environmental light changes, then the display adapts rapidly to ambient conditions, but user experience deteriorates due to difficulty in clearly seeing display content
Solution Approach 1:
The brightness adjustment process is segmented into multiple discrete steps or frames. Instead of applying a single abrupt brightness change, the controller divides the adjustment into sequential segments (e.g., 10% increments over 5 frames), allowing the visual system to process and adapt to each segment before the next is applied.
Data Source
AI summary
The present disclosure provides a method and an electronic device capable of performing a display adjustment. The method comprises: obtaining a first brightness value corresponding to light flux to enter user eyes at a first time; obtaining a second brightness value corresponding to light flux to enter user eyes at a second time later than the first time; determining whether a brightness difference between the first brightness value and the second brightness value is greater than a threshold value; and in events where the brightness difference between the first brightness value and the second brightness value is greater than the threshold value, enabling an adjustment mode of the electronic device, wherein the adjustment mode comprises increasing a transition time period of a transition from the first brightness value to the second brightness value and adjusting either of both of brightness of a backlight and brightness of a screen content according to the transition from the first brightness value to the second brightness value with the increased transition time.