P-180: Active Compensation for OLED Aging

Cok, Ronald S.; Leon, Felipe

doi:10.1889/1.2433667

Cited by 2 publications

(1 citation statement)

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“…Therefore, the RGBW quad‐pixel can offer specific benefits to the OLED microdisplay . The WSP is able to increase the useful lifetime of the OLED pixels by lowering the individual sub‐pixel luminance and required the current through the OLED stack thereby reducing the rate of ageing of the OLED device . In other words, the RGBW quad‐pixel is able to improve the overall brightness and the lifetime of the display by using the WSP to efficiently replace the white component in the colour inputs.…”

Section: Introductionmentioning

confidence: 99%

Compact and efficient RGB to RGBW data conversion method and its application in OLED microdisplays

Can

Underwood

2013

J Soc Info Display

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In many electronic information displays, a colour pixel comprises three spatially distinct sub‐pixels containing red, green and blue (RGB) colour filters. The option of adding a fourth white (W) sub‐pixel that allows light to pass through unfiltered can significantly improve the optical efficiency of the pixel that, in turn, increases the power efficiency of the display. Such a display is called an RGBW display, and the required transformation of data format from incoming RGB to pixel RGBW is termed as “RGB to RGBW conversion.” This paper reports a method of RGB to RGBW conversion that is highly compact and efficient in terms of system resources while retaining image quality. It processes incoming data through a new colour space conversion algorithm in order to reduce the average power consumption with no noticeable visual artefacts. We explain the method and demonstrate its cost‐effective and power‐effective implementation for the specific case of an organic light emitting diode microdisplay.

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Section: Introductionmentioning

confidence: 99%