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    • 4. 发明申请
    • LIQUID CRYSTAL DISPLAY
    • 液晶显示器
    • US20070058105A1
    • 2007-03-15
    • US11383654
    • 2006-05-16
    • Takahiro IgarashiTsuneo KusunokiKatsutoshi Ohno
    • Takahiro IgarashiTsuneo KusunokiKatsutoshi Ohno
    • G02F1/1335
    • G02F1/133604
    • A liquid crystal display capable of expanding a color reproduction range in the case where a cold cathode fluorescent lamp is used as a light source is provided. A green phosphor of the cold cathode fluorescent lamp includes BaMgAl10O17:Eu, Mn. The wavelength range of a green emission spectrum is located on a shorter wavelength side than that in the case where the green phosphor includes LaPO4:Ce, Tb, so the spectral width of the green emission spectrum is narrower. Therefore, an overlap between the wavelength ranges of green display light and red display light is reduced. Moreover, the spectral characteristics of blue display light (blue spectral characteristics) are set so as to satisfy predetermined conditional expressions. An overlap between the wavelength ranges of the green display light and the blue display light is also reduced.
    • 提供一种在使用冷阴极荧光灯作为光源的情况下能够扩大色彩再现范围的液晶显示器。 Eu阴极荧光灯的绿色荧光体包括BaMgAl 10 O 17:Eu,Mn。 绿色发射光谱的波长范围位于比绿色荧光体包括LaPO 4 Ce:Tb的情况更短的波长侧,因此绿色发射光谱的光谱宽度变窄 。 因此,绿色显示光和红色显示光的波长范围之间的重叠减少。 此外,蓝色显示光(蓝色光谱特性)的光谱特性被设定为满足预定的条件表达式。 绿色显示光和蓝色显示光的波长范围之间的重叠也减少。
    • 5. 发明申请
    • Backlight device and liquid crystal display device
    • 背光装置和液晶显示装置
    • US20060170319A1
    • 2006-08-03
    • US11330506
    • 2006-01-12
    • Takashi OkuYoshinori YamazakiTsuneo KusunokiKatsutoshi OhnoTakahiro Igarashi
    • Takashi OkuYoshinori YamazakiTsuneo KusunokiKatsutoshi OhnoTakahiro Igarashi
    • H01K1/30H01K1/26
    • G02F1/133606G02F1/133504G02F1/133514G02F1/133604
    • A backlight device is provided that realizes high luminance while widening the color range. The backlight device illuminates a transmissive color liquid crystal display panel with white light from a back side of the transmissive color liquid crystal display panel having a color filter made of a three-primary-color filter which selectively transmits light having wavelengths of red light, green light, and blue light. The backlight device includes a plurality of cold cathode fluorescent lamp tubes having tube walls coated with a wide-color-range fluorescent material. The backlight device also includes a diffusion plate which diffuses white light emitted from the cold cathode fluorescent lamp tubes, illuminates the color liquid crystal display panel with the diffused white light, and is positioned at a predetermined distance from the cold cathode fluorescent lamp tubes. A predetermined pattern is printed on the diffusion plate, by dot printing, corresponding to positions at which the cold cathode fluorescent lamp tubes are provided, and the diffusion plate is positioned several mm apart from the cold cathode fluorescent lamp tubes.
    • 提供了一种在扩大颜色范围的同时实现高亮度的背光装置。 背光装置利用具有由三原色滤色片制成的滤色片的透射彩色液晶显示面板的背面的白色光照亮透射彩色液晶显示面板,该滤色片选择性地透过具有红色光,绿色的波长的光 光和蓝光。 背光装置包括多个冷阴极荧光灯管,其具有涂覆有宽色范围荧光材料的管壁。 背光装置还包括扩散板,其漫射从冷阴极荧光灯管发出的白光,用扩散白光照射彩色液晶显示面板,并且位于距冷阴极荧光灯管预定距离处。 通过对应于设置冷阴极荧光管的位置的点印刷,扩散板上印有预定图案,扩散板与冷阴极荧光灯管隔开几毫米。
    • 6. 发明授权
    • Fluorescent material and manufacturing method therefor
    • 荧光材料及其制造方法
    • US06299797B1
    • 2001-10-09
    • US09564705
    • 2000-05-04
    • Takahiro IgarashiMasaru IharaTsuneo KusunokiKatsutoshi Ohno
    • Takahiro IgarashiMasaru IharaTsuneo KusunokiKatsutoshi Ohno
    • C07K1178
    • C09K11/7785
    • A fluorescent material is disclosed which is excellent in the intensity of color and brightness and suitable for a FED and a precise CRT. The fluorescent material is prepared by co-activating yttrium oxide fluorescent material activated with europium. The means particle size is 10 nm to 100 nm. To prepare the fluorescent material, basic carbonate activated with europium and zinc is used as a precursor which is then baked. The precursor is prepared by a liquid-phase reaction. Specifically, yttrium nitrate, europium nitrate and zinc acetate are allowed to react in a solution together with sodium carbonate. The prepared precursor is baked by a quick heating and cooling As an alternative to this, the precursor is baked together with flux (phosphate of alkali metal).
    • 公开了一种荧光材料,其颜色和亮度强度优异,适用于FED和精确的CRT。 荧光材料是通过用铕活化的钇氧化物荧光材料共活化来制备的。 平均粒径为10nm〜100nm。 为了制备荧光材料,使用用铕和锌活化的碱式碳酸酯作为前体,然后烘焙。 通过液相反应制备前体。 具体地说,使硝酸钇,硝酸铕和乙酸锌与碳酸钠一起在溶液中反应。 所制备的前体通过快速加热和冷却进行烘烤。作为替代方案,将前体与助熔剂(碱金属的磷酸盐)一起焙烧。