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    • 9. 发明授权
    • Backlight device and color liquid crystal display
    • 背光装置和彩色液晶显示器
    • US07789527B2
    • 2010-09-07
    • US11596098
    • 2005-04-28
    • Tatsuhiko MatsumotoKoichiro KakinumaTakehiro NakatsueShuichi Haga
    • Tatsuhiko MatsumotoKoichiro KakinumaTakehiro NakatsueShuichi Haga
    • G02B6/10
    • G09G3/3413G02F1/133603G02F1/133609G09G2320/0666
    • Disclosed is a backlight device which is used for a color liquid crystal display and includes a light source and a backlight housing (23). The light source includes a red light emitting diode (21R), radiating red light, having a peak wavelength λpr such that 625 nm≦λpr≦685 nm, a green light emitting diode (21G), radiating green light, having a peak wavelength λpg such that 505 nm≦λpg≦540 nm, and a blue light emitting diode (21B), radiating blue light, having a peak wavelength λpb such that 420 nm≦λpb≦465 nm. The backlight housing mixes the red light, the green light and the blue light, radiated from the light source, to generate white light. A light emission intensity is adjusted so that a half value width of a spectrum of the red light, a half value width of a spectrum of the green light and a half value width of a spectrum of the blue light are such that 20 nm≦hwr≦25 nm, 30 nm≦hwg≦40 nm and 25 nm≦hwb≦30 nm, respectively.
    • 公开了一种用于彩色液晶显示器并包括光源和背光外壳(23)的背光装置。 光源包括红色发光二极管(21R),其具有峰值波长λpr,使得具有峰值波长λpg的625nm&λlE;λpr≦̸ 685nm的绿色发光二极管(21G) 使得具有峰值波长λpb,使得具有420nm和nlE;λpb≦̸ 465nm的蓝色发光二极管(21B)的发光体为505nm<λpg≦̸ 540nm和蓝色发光二极管(21B)。 背光外壳混合从光源辐射的红光,绿光和蓝光,产生白光。 调整发光强度,使得红光的光谱的半值宽度,绿光的光谱的半值宽度和蓝色光的光谱的半值宽度为20nm& nlE; hwr&nlE ;分别为25nm,30nm和nlE; hwg和nlE; 40nm和25nm和nlE; hwb和nlE; 30nm。