Abstract
This chapter focuses on dimming of LED LCD backlight. The main goal is the reduction of the backlight’s power consumption by adapting the backlight luminance according to the image properties without degradation of the image quality. First of all, the principles of backlight dimming are explained. The focus is on the most worthwhile method called local dimming. The post-processing, where the TFT values are adapted is shown afterward. Then the effects on the visual quality of backlight dimming are explained.
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Abbreviations
- Backlight Dimming:
-
Method to Dim the Backlight According to Image Properties
- CCFL:
-
Cold Cathode Fluorescent Lamp
- LCD:
-
Liquid Crystal Display
- LED:
-
Light Emitting Diode
- PWM:
-
Pulse Width Modulation
- TCON:
-
Timing Controller
- TFT:
-
Thin Film Transistor
References
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Further Reading
Kobayashi S, Mikoshiba S, Lim S (2009) LCD backlights. Society for Information Display - Wiely, Hoboken, NJ; ISBN 9780470744826
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© 2012 Springer-Verlag Berlin Heidelberg
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Xu, C., Albrecht, M., Jung, T. (2012). Dimming of LED LCD Backlights. In: Chen, J., Cranton, W., Fihn, M. (eds) Handbook of Visual Display Technology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-79567-4_43
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DOI: https://doi.org/10.1007/978-3-540-79567-4_43
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-79566-7
Online ISBN: 978-3-540-79567-4
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