Autors: Kamenov, V. V.
Title: Photometric Flicker in Computer Displays Backlight and a Method for Reduction of its Effects
Keywords: Photometric flicker, flicker index, flicker percent, PWM dim

Abstract: Data analysis is presented, as well as measurements, from some CCFL and LED backlit computer displays, operated using dimming controls. A method for reducing the harmful effects of flicker is proposed based on computer software and IEEE STD 1789 flicker recommendations. Guidelines are presented to help guide practitioners in their evaluation of backlight displays concerning flicker. The paper shows how Pulse width modulation (PWM) works and why it is used in LCD LED backlit displays, as well as how to test a display to see its effects more clearly. The paper also looks at some methods some manufacturers are now adopting to address these concerns and provide flicker-free backlights instead.

References

  1. Vladimirova, G., 2014, The impact of colouring on consumer behaviour, Ph.D., <Technical University - Sofia>
  2. Svezhenov, Y., Nikov, A., Radoslavov, A., 1950, Overview of approaches for measuring emotional user experience with virtual and tangible products,ХXVI International Conference “ADPE”, Sozopol, Bulgaria, 2017, <Sofia>, TU-Sofia

Issue

Metrology and Metrology Assurance, vol. 1, issue 1, pp. 266-271, 2017, Bulgaria, TU-Sofia, ISSN 1313-9126

Full text of the publication

Вид: пленарен доклад в международен форум, публикация в реферирано издание, индексирана в Scopus