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DOE Releases Annual Solid State Lighting R&D Plan LED Progress is Better than OLED
The US Department of Energy (DOE) has released its annual Solid State Lighting (SSL) R&D program. This year, the plan is divided into two documents: “Recommended Research Questions for 2017†and “Recommended Research Questions for 2017â€. The former briefly defines specific areas where more research is needed in the solid-state lighting industry. The latter includes the US Department of Energy's progress on efficiency and the US Department of Energy estimates that by 2025, warm white LEDs will be similar to cool white LEDs. Performance, but the improvement in OLED performance is still behind expectations. The US Department of Energy (DOE) has released its annual Solid State Lighting (SSL) R&D program. This year, the plan is divided into two documents: “Recommended Research Questions for 2017†and “Recommended Research Questions for 2017â€. The former briefly defines specific areas where more research is needed in the solid-state lighting industry, and the latter includes the US Department of Energy's predictions of efficiency improvements and energy savings. This is the second time the US Department of Energy has changed the structure of research and development plans and reports. Since 2015, the agency has released an annual research and development plan. Prior to this, the agency released a separate multi-year project plan (MYPP) and solid-state lighting manufacturing roadmap. The 2017 Proposed Research Project Copy predicts energy savings based on the current path of the solid state lighting industry. According to the current industry path, the US Department of Energy said that the LED transformation will save the United States a total of 42 quad energy between 2015 and 2035. A quad is roughly equivalent to 293 TWh or 1 trillion BTU. The US Department of Energy also said that if the industry can achieve the goals of the Department of Energy, the cumulative savings can reach 62 quad, and the other 20 quad is enough to provide one year of electricity to 90% of households in the United States. The figure shows the LED package power prediction. Like many disruptive innovations, color hybrid LED architectures currently perform at lower performance than current mainstream PC-LED architectures, but in the next few years, there will be potential for leapfrog development. The 2017 research project document shows that the gap in the efficacy of cool white and warm white phosphor-converted LEDs is shrinking. The US Department of Energy says that by 2020, the typical 218 lm/W cool white performance will be 10 lm/W at the package level. By 2025, the agency expects cool white performance to reach 240 lm/W, which is only 3 lm/W away from warm white LEDs. The news in the OLED industry is not so good. The US Department of Energy said that the OLED industry failed to crack the 100lm/W barrier outside the laboratory. As early as 2014, the US Department of Energy has already predicted that such panels will be widely used now. The research project document goes on to say that studying the decline in efficiency in blue LEDs will still be a top priority. In addition, the agency noted that improvements in green, red and amber LEDs will also be critical. This document further requires improvements in the downconverter, such as phosphors. The new plan also requires progress in systems or luminaires. The agency expects that by 2020, fixtures will reach 200 lm/W at the system level. In addition, the report calls for a new and novel form factor. LED drivers or power supplies are also key targets for greater efficiency and longer life.