A multiunit compensation for organic light‐emitting diode burn‐in in mobile displays

Ok, Jiheon; Yu, Yonghoon; An, Joo-young; Na, Sewhan; Jang, Woo–Hyuk; Lim, Hyun‐Wook; Lee, Jae-Youl

doi:10.1002/jsid.1031

Cited by 4 publications

(7 citation statements)

References 14 publications

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“…In the existing logo compensation studies, [2][3][4][5][6][7][8][9][10][11] burn-in was compensated by reducing the luminance of the logo by a specific ratio. The existing method has the advantage that the algorithm is simple, but it does not consider the characteristics and type of the logo.…”

Section: Existing Logo Compensation Methodsmentioning

confidence: 99%

“…It refers to a phenomenon in which the color is not properly expressed owing to deterioration of the OLED element, or an afterimage remains permanently on the screen. [2][3][4][5] Currently, several studies in semiconductor level are being conducted to address the burn-in, however there is no complete solution yet. 3,6 Thus, it is important to prevent it.…”

Section: Introductionmentioning

confidence: 99%

“…[2][3][4][5] Currently, several studies in semiconductor level are being conducted to address the burn-in, however there is no complete solution yet. 3,6 Thus, it is important to prevent it.…”

Section: Introductionmentioning

confidence: 99%

“…In previous studies, [2][3][4][5][6][7][8][9][10][11] logos were compensated by lowering the luminance by a certain percentage. However, these methods did not take into account the environment around the logo.…”

Section: Introductionmentioning

confidence: 99%

“…Burn‐in progresses quickly when the image has high luminance and is used for a long period of time, making it inconvenient for viewers to use the OLED display. It refers to a phenomenon in which the color is not properly expressed owing to deterioration of the OLED element, or an afterimage remains permanently on the screen 2–5 …”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Effective burn‐in reduction of organic light‐emitting diode display using perceptual color difference between logo and background

Kim¹,

Seok²,

Lee³

et al. 2022

J Soc Info Display

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The paper proposes a method to delay the burn‐in effect of an organic light‐emitting diode (OLED) display. Usually, the burn‐in occurs in broadcasting company logo regions. In previous studies, logos were compensated by reducing the logo luminance by a specific ratio. This paper proposes a novel logo‐compensation method regarding the perceptual color difference between a logo and background areas. The proposed method has the advantage of being less affected by changes in the surrounding area than the existing compensation method, minimizing the deterioration of the recognition of the logo, and delaying the burn‐in as much as possible.

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Section: Existing Logo Compensation Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Effective burn‐in reduction of organic light‐emitting diode display using perceptual color difference between logo and background

Kim¹,

Seok²,

Lee³

et al. 2022

J Soc Info Display

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Duty ratio drive prediction model of lifetime degradation for organic light emitting diode‐on‐silicon microdisplay

Mu,

Ji,

Gong

et al. 2023

Luminescence

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A duty ratio drive prediction (DRDP) model of luminance degradation for organic light emitting diodes (OLED) microdisplay is proposed in this paper. The traditional stretched exponential decay (SED) model is not applicable for OLED driven by duty ratio. The DRDP model introduces the duty ratio as the variables affecting the lifetime of OLED. By fitting the undetermined coefficients with the measured luminance data, the quantitative relationships among the initial luminance, duty ratio, and OLED lifetime are obtained. Meanwhile, the model quantifies the phenomenon of spontaneous luminance recovery, which occurs when OLED switches from bright to dark. Finally, the DRDP model is used to compensate the luminance degradation of OLED driven by duty ratio. The experimental results show that the average prediction accuracy of DRDP model for white, red, green, and blue (W/R/G/B) OLED degradation trend is 0.9623. The average prediction accuracy of W/R/G/B OLED lifetime is 0.6119, which is greater than that of SED model. The lifetime is extended by 89.83% after compensation.

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P‐13.10: A New Color Space Model for AMOLED Display Based on IR Drop

Cai

Liu²,

Han

et al. 2023

Symp Digest of Tech Papers

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In this paper, we present a new color space model for AMOLED display based on IR drop. This paper discusses the relationship between the color space and the IR drop of AMOLED display, then derives the corresponding color space model. Based on this model, the level of IR Drop can be adaptively adjusted to change the color space of the panel, to accurately display the brightness and chroma of target. In the experimental results, it is confirmed that the native color space of the panel can be auto tuned to less than 0.5 on average in CIEDE2000 for different target color spaces in different applications. In addition, a corresponding fast calibration method within 15 seconds has been developed to match with our driver chips, to be applied to individual panel correction and calibration requirements in a production line.

show abstract

A multiunit compensation for organic light‐emitting diode burn‐in in mobile displays

Cited by 4 publications

References 14 publications

Effective burn‐in reduction of organic light‐emitting diode display using perceptual color difference between logo and background

Effective burn‐in reduction of organic light‐emitting diode display using perceptual color difference between logo and background

Duty ratio drive prediction model of lifetime degradation for organic light emitting diode‐on‐silicon microdisplay

P‐13.10: A New Color Space Model for AMOLED Display Based on IR Drop

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