60.1: <i>Invited Paper</i>: AMLCD and AMOLEDs: How do They Compare for Green Energy Efficiency?

Hack, Mike; Weaver, Michael S.; Brown, Julie J.; Chang, Lee‐Hsun; Wu, Chih-Kang; Lin, Yu‐Hsin

doi:10.1889/1.3500623

Cited by 37 publications

(19 citation statements)

References 9 publications

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“…It is expected that OLEDs will have lower power consumption as energy is only consumed in OLED pixels that emit light, as opposed to LCDs where the backlight often emits light which is then absorbed by the liquid crystal stack, and is wasted. Based on the above assumptions we can expect mobile AMOLED displays to have ~ 40% less power consumption than equivalent AMLCDs [22]. The high efficiency of PHOLEDs has additional benefits to AMOLED technology, and particularly to flexible AMOLED displays.…”

Section: Pholedmentioning

confidence: 99%

Recent progress of flexible AMOLED displays

et al. 2011

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Significant progress has been made in recent years in flexible AMOLED displays and numerous prototypes have been demonstrated. Replacing rigid glass with flexible substrates and thin-film encapsulation makes displays thinner, lighter, and non-breakable -all attractive features for portable applications. Flexible AMOLEDs equipped with phosphorescent OLEDs are considered one of the best candidates for low-power, rugged, full-color video applications. Recently, we have demonstrated a portable communication display device, built upon a full-color 4.3-inch HVGA foil display with a resolution of 134 dpi using an all-phosphorescent OLED frontplane. The prototype is shaped into a thin and rugged housing that will fit over a user's wrist, providing situational awareness and enabling the wearer to see real-time video and graphics information.

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Section: Pholedmentioning

confidence: 99%

Recent progress of flexible AMOLED displays

et al. 2011

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“…Recently, the active matrix organic light emitting diode (AMOLED) has attracted more attention owing to higher contrast, vivid color, flexibility and low power [1]. However, the brightness uniformity and performance degradation remain two critical challenges for AMOLED displays.…”

Section: Introductionmentioning

confidence: 99%

P‐1.15: A new optical compensation scheme for AMOLED displays with a‐IGZO TFT and a‐Si:H PIN diode

Lin¹,

Zhu²,

Xu³

et al. 2019

Symp Digest of Tech Papers

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This paper proposed a new optical compensation scheme for AMOLED display based on a sensor unit in pixel. The sensor unit includes an a‐IGZO TFT, which is adopted as a switch due to its low off current, a‐Si:H PIN diode as optical sensor due to its high photoconductive gain, and a capacitor to store charges. Owing to the large off current difference under different brightness, the luminance of every pixel can be acquired by PIN sensor, and then data voltage is adjusted accordingly. The scheme is adopted in a 5 inch AMOLED display, and the results show this method can capture the pixel brightness accurately, and effectively compensate low gray level light uniformity.

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“…In recent years, OLED displays have widely replaced liquid crystal displays (LCDs), owing to several factors [1], [2]. First, unlike LCDs, OLED displays do not require a backlight; hence, they are thinner and lighter than LCDs.…”

Section: Introductionmentioning

confidence: 99%

“…Even though OLED displays have high power efficiency, their power consumption should be reduced further because displays usually account for the highest power consumption in electronic devices [2]. Conventionally, however, several techniques have been studied to reduce the power consumption of Manuscript LCDs [3]- [5].…”

Section: Introductionmentioning

confidence: 99%

Image-Quality-Based Power Control Technique for Organic Light Emitting Diode Displays

Kang

2015

J. Display Technol.

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This paper presents a new image-quality-based power control algorithm for an organic light-emitting diode display. The proposed algorithm calculates the optimal tradeoff between image quality and power consumption by employing an objective function that integrates a roll-off curve to eliminate the clipping error, which severely degrades the perceptual image quality. In addition, a sampling technique is adopted to reduce the computational complexity. The simulation results show that the proposed algorithm reduces the average power consumption by up to 0.310 (11.75% decrease) while preserving the image quality above the target level. When applying the sampling technique to the proposed method, the average computation time per pixel is reduced by up to 1.025 s (37.63% decrease) whereas the image quality and power consumption remain virtually unchanged.Index Terms-Clipping error control, organic light-emitting diode, power control.

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60.1: Invited Paper: AMLCD and AMOLEDs: How do They Compare for Green Energy Efficiency?

Cited by 37 publications

References 9 publications

Recent progress of flexible AMOLED displays

Recent progress of flexible AMOLED displays

P‐1.15: A new optical compensation scheme for AMOLED displays with a‐IGZO TFT and a‐Si:H PIN diode

Image-Quality-Based Power Control Technique for Organic Light Emitting Diode Displays

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