Variable Peripheral Dimming for High-Brightness Displays
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Solution Overview
Problem
Electronic devices face high power consumption due to increased display brightness for improved readability, which is not efficiently managed, leading to potential power management issues.
Innovation Solution
Implementing variable brightness dimming techniques that adjust peripheral regions of the display to lower luminance levels relative to the center, dynamically adjusting based on display brightness, power saving modes, and ambient lighting conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If display brightness is increased to improve readability in outdoor environments, then image clarity and readability are improved, but power consumption increases
Solution Approach 1:
The patent applies different luminance levels to different spatial regions of the display. The center region maintains high luminance for content readability, while peripheral regions use lower luminance, reducing overall power consumption while preserving visual effectiveness in the most important viewing area
Solution Approach 2:
The display is segmented into multiple luminance zones (center and peripheral regions) with independently controlled brightness levels. This segmentation allows selective power management where only the essential central area requires maximum brightness, while periphery operates at reduced power consumption
2Illumination intensity
If display brightness is increased to achieve higher luminance levels, then readability in bright environments is improved, but the increase in supplied current increases
Solution Approach 1:
Different luminance profiles are applied to different spatial regions, with the center region receiving higher luminance and peripheral regions receiving lower luminance. This local differentiation achieves high perceived brightness where needed while reducing the total current supply requirement
3Use of energy by moving object
If peripheral regions are dimmed to reduce power consumption, then power efficiency is improved, but display uniformity is reduced
Solution Approach 1:
The system dynamically adjusts luminance profiles based on ambient lighting conditions and power saving modes. The transition between uniform and non-uniform luminance distributions is adaptive, maintaining display composition stability under varying operational conditions while optimizing power efficiency
Data Source
AI summary
In general, the subject matter described in this disclosure can be embodied in methods, systems, and program products for presenting display content on a display of a computing system. A method includes selecting, from a collection of luminance profiles that are each configured to reduce brightness of the display content in different manners, a first luminance profile based on the current display brightness setting, the first luminance profile specifying a first amount of brightness reduction to a peripheral portion of the display content and a first gradient of brightness reduction for a portion of the display content between the peripheral portion of the display content and a center portion of the display content; applying the first luminance profile to the display content to modify the display content by reducing a brightness of the display content according to the first luminance profile; and presenting the display content on the display.