Advanced Multimedia Power-Saving Method Using a Dynamic Pixel Dimmer on AMOLED Displays

Antireflection displays with ambient contrast enhancement for extended device battery lifetime and reduced energy consumption

“…9,10 Significant work has been invested in optimizing mobile device energy consumption and battery lifetime using active control of display output, under consideration of the impacts on perceived image quality. [11][12][13] These methods may in some cases make use of image and color appearance models [14][15][16][17][18] to calculate the appropriate scaling of display output, accounting for energy consumption impacts. Here, we provide an initial quantification of the energy savings and battery lifetime improvement that can be obtained by reducing the front-surface photopic reflectance of mobile devices below 0.5% using state-ofthe-art AR coating on glass technology, with an experimental focus on tablet computers using liquid crystal displays.…”

“…The display can consume over 30% of the total power of a notebook computer and can exceed 50% of the power consumption of a smartphone, though this is highly dependent on usage conditions 9, 10 . Significant work has been invested in optimizing mobile device energy consumption and battery lifetime using active control of display output, under consideration of the impacts on perceived image quality 11–13 . These methods may in some cases make use of image and color appearance models 14–18 to calculate the appropriate scaling of display output, accounting for energy consumption impacts.…”

Unsupervised Deep Contrast Enhancement With Power Constraint for OLED Displays

“…Even though OLED displays have high power efficiency, they place a significant strain on the battery, e.g., in mobile devices and home television sets. Therefore, various techniques such as hardware optimization [2] and image processing-based methods [3]- [11] have been proposed to reduce the power demands of the OLED displays.…”

“…Chang et al [8] proposed an SSIMbased pixel dimming method with a constraint on the maximum image modification, and further improved their method by correcting the overexposed region is introduced in [10]. Recently, Chondro et al [11] proposed a hue-preserving pixel dimming technique to avoid dynamic region distortions.…”

“…The resultant images for R = 0.5. (a) Input image, (b) PCCE[3], (c) Chang et al[8], (d) Chondro et al[11], (e) proposed method. The proposed method produces a resultant image with superior image quality as compared to conventional methods.…”