Analysis of luminance uniformity and relevant issues with virtual pixel display and countermeasures

Section: Ppimentioning

confidence: 99%

24‐4: Visual Optical Simulation System and Quantitative Evaluation Criteria

Shi,

Fu,

Tan

et al. 2024

“…The spacing between adjacent loop units is bigger than that between the two subpixels in the same loop unit. The uneven distribution of pixel luminance centroid causes some differences in perception [1] .…”

Section: Graininessmentioning

confidence: 99%

P‐114: Novel Optical Simulation System for Pixel Design Optimization

Shi,

Yu,

Tan

et al. 2023

OLED display quality is closely related to pixel design. Usually, in order to evaluate the effect of pixel design on display quality, we need to make panel samples and light them up, or observe killer pattern samples that putted on the back light. Either method costs a considerable amount of time and money. In this paper, we will introuce a novel optical simulation system that we established to evaluate and optimize pixel design qualitatively or quantitatively.

“…The horizontal spaces between the G sub-pixels in the GGRB virtual pixel display are non-uniform. The distribution uniformity of pixel luminance centroids is approached via proper modulation to the luminance profile of the G sub-pixel array by the R and B sub-pixels with lower spatial frequency distribution [8] . As shown in Fig.…”

Section: The Improvement Of Distribution Uniformity Of Pixel Luminanc...mentioning

confidence: 99%

P‐126: An Introduction to GGRB Virtual Pixel Technology

Lu-jiang,

Wen-xiu,

Hua-ling

et al. 2023

The constructions of the GGRB virtual pixel and the effect on the display performance are introduced by comparing with that of the Diamond RGBG virtual pixel, a typical virtual pixel technology applied to active matrix organic light‐emitting diode (AMOLED) display. Because of the characteristic structure of GGRB sub‐ pixel arrangement, the occurrence of perceptible artificial color discontinuity is reduced in the GGRB virtual pixel display. The distribution uniformity of pixel luminance centroids is important for the display of pattern details. In the GGRB virtual pixel display, the distribution uniformity of pixel luminance centroids is achieved via a non‐uniformly distributed green sub‐pixel array of which the luminance profile is properly modulated by the red and blue sub‐pixels with lower spatial frequency distribution. The results of subjective evaluation and comparison suggest that the performance improvement of the GGRB virtual pixel display is consistent with the conceptual expectation. Some of the essential characteristics is superior to those of the reference technology.