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Intel Display Power Saving Technology or Intel DPST is an Intel backlight control technology. Intel claims that display take up most power in mobile devices and reducing backlight linearly affects energy footprint. Intel DPST technology aims to adaptively reduce backlight brightness while maintaining satisfactory visual performance. The Intel DPST subsystem analyzes the image to be displayed and it uses a set of algorithms to change the chroma value of pixels while reducing the brightness of backlight simultaneously such that there is minimum perceived visual degradation. When the frame to be projected and the frame being projected has considerable difference a software interrupt is asserted and new chroma values for pixels and brightness values are calculated. The current version is Intel DPST 6.0. Intel claims that the current DPST version reduces backlight power by 70% for DVD workloads.
References
- Sriprasad, Chak (2013). "Display Technologies for Intel® Graphics" (PDF). Intel. IDF13. Archived from the original (PDF) on 27 September 2013. Retrieved 22 September 2013.
- "Power Management Technologies for Processor Graphics Display and Memory". Intel. White Paper. August 2010. Retrieved 22 September 2013.
- Bhowmik, Achintya K.; Brennan, R.J., IEEE Communications Society; IEEE Electron Devices Society; BTS, [IEEE Broadcast Technology Society] (2007). Portable Information Devices, 2007. PORTABLE07. IEEE International Conference on. Piscataway, NJ: IEEE Operations Center. pp. 1–5. ISBN 978-1-4244-1039-2.
{{cite book}}: CS1 maint: multiple names: authors list (link) - Bob Steigerwald; Chris D. Lucero; Chakravarthy Akella; Abhishek R. Agrawal (2011). Energy aware computing : powerful approaches for green system design. [S.l.]: Intel Press. ISBN 978-1-934053-41-6.
