The discussion centers on simulating an OLED using Atlas Silvaco and the challenge of converting light power (watt/um) into luminance (cd/m2). Participants note that watt/um is not a valid unit for luminance and emphasize the need for integration over the visible spectrum to achieve the conversion. A suggested resource for this conversion, https://app.knovel.com/uc/, is reported to work for some users but not for others, leading to speculation about regional internet issues. The conversation highlights the complexities involved in the integration process within Atlas Silvaco. Overall, the thread illustrates the technical difficulties in performing accurate simulations and conversions in OLED modeling.