ZHUANG Si-xiang, QIAN Ke-yuan, LI Xu-liang, HUANG Guan-zhi, ZHU Bing-zhong, LIANG Ming-juan. Effect of White LEDs on Gamut of TV with Direct Illumination-type LED Backlight[J]. , 2011,26(4): 474-479
ZHUANG Si-xiang, QIAN Ke-yuan, LI Xu-liang, HUANG Guan-zhi, ZHU Bing-zhong, LIANG Ming-juan. Effect of White LEDs on Gamut of TV with Direct Illumination-type LED Backlight[J]. , 2011,26(4): 474-479 DOI: 10.3788/YJYXS20112604.0474.
Backlights based on white LEDs have significant advantages for liquid crystal display(LCD) such as good optical property
low power dissipation
long lifetime
high contrast
simple drive system and so on. However
not all LEDs are suitable for light source of backlights.The influence of liquid panel and different white LEDs on color gamut are investigated. Results showed that
to obtain high color gamut
LCD pannel and the corresponding LED light source are needed. Due to the mixed crest
2-band LEDs which used for illumination only achieved 75.2% NTSC gamut. Then for 3-band LEDs
as its crests are independent relatively
it could obtained 84.2% color gamut.
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references
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