Lighting unit
    11.
    发明授权
    Lighting unit 有权
    照明单元

    公开(公告)号:US07494259B2

    公开(公告)日:2009-02-24

    申请号:US10676315

    申请日:2003-10-01

    IPC分类号: F21V8/00

    摘要: A lighting unit including a light-reflecting reflector, a plurality of cold cathode tubes disposed inside the reflector and an optical waveguide connected with an open end of the reflector to guide the light emitted by the cold-cathode tubes. The reflector has a reflective surface that reflects the light having been emitted by the cold-cathode tubes in the direction nearly perpendicular to the wall of each tube, and only in a direction in which the light reflected does not re-enter the cold-cathode tubes. In another embodiment, the lighting unit may include a second optical waveguide disposed in the space between the cold-cathode tube and the reflector, wherein a space is formed between the cold-cathode tube and the second optical waveguide.

    摘要翻译: 一种照明单元,包括光反射器,设置在反射器内部的多个冷阴极管和与反射器的开口端连接以引导由冷阴极管发射的光的光波导。 反射器具有反射表面,该反射表面反射已经由冷阴极管发射的光在几乎垂直于每个管的壁的方向上,并且仅在所反射的光不再进入冷阴极的方向上 管。 在另一个实施例中,照明单元可以包括设置在冷阴极管和反射器之间的空间中的第二光波导,其中在冷阴极管和第二光波导之间形成空间。

    Illumination device and liquid crystal display device using the same
    12.
    发明授权
    Illumination device and liquid crystal display device using the same 有权
    照明装置和使用其的液晶显示装置

    公开(公告)号:US07277079B2

    公开(公告)日:2007-10-02

    申请号:US10696504

    申请日:2003-10-29

    IPC分类号: G09G3/36

    摘要: An illumination device is provided which can reduce a movement blur and a tailing phenomenon on a motion picture display while a drop in display brightness is suppressed, and which can suppress power consumption, can be made small and light, and can prolong the lifetime, and a liquid crystal display device using the same is provided. A light source control part of a control circuit synchronizes a latch pulse signal outputted from a gate driver control part to a gate driver, and outputs light emission control signals to respective light source power supply circuits. The respective light source power supply circuits change emission states of cold cathode fluorescent lamps to one of a first to a third emission states on the basis of the inputted light emission control signals, and illuminate an LCD panel from a rear surface of a display area. A first stage emission state is a non-lighting state, a second stage emission state is a maximum lighting state in which maximum lighting brightness is obtained, and a third emission state is an intermediate lighting state in which brightness of about one half of the second stage emission state is obtained.

    摘要翻译: 提供了一种照明装置,其可以在显示亮度的下降被抑制的同时减少运动模糊和拖尾现象,并且能够抑制功耗,可以变得小而轻,并且可以延长使用寿命,并且 提供了使用该液晶显示装置的液晶显示装置。 控制电路的光源控制部分将从栅极驱动器控制部分输出的锁存脉冲信号同步到栅极驱动器,并将光发射控制信号输出到各个光源电源电路。 各个光源电源电路根据所输入的发光控制信号,将冷阴极荧光灯的发光状态改变为第一至第三发光状态之一,并从显示区域的后表面照亮LCD面板。 第一级发射状态是非点亮状态,第二级发射状态是获得最大照明亮度的最大点亮状态,并且第三发光状态是中间点亮状态,其中亮度约为第二级发光状态的大约二分之一 获得阶段发射状态。

    Projection type display apparatus having air cooling arrangement
    16.
    发明授权
    Projection type display apparatus having air cooling arrangement 有权
    具有空气冷却装置的投射型显示装置

    公开(公告)号:US06481854B1

    公开(公告)日:2002-11-19

    申请号:US09452223

    申请日:1999-12-01

    IPC分类号: G03B2116

    CPC分类号: G02F1/133385 G03B21/16

    摘要: The projection type display apparatus has liquid crystal panels with polarizers, a light source, a power supply, and a ballast. A cooling device is arranged in the apparatus such that a first set of cooling fans blow cooling air to cool the liquid crystal panels and the polarizers, and a second set of cooling fans suck the cooling air passing through the liquid crystal panels and the polarizers and blow the cooling air to independently cool the light source, the power supply, and the ballast. Therefore, a projection type display apparatus with little light leakage and low noise can be realized. The invention also provides a cooling unit, for the light source, which includes a movable lamp house and a duct with a cooling fan.

    摘要翻译: 该投影型显示装置具有带偏振器,光源,电源和镇流器的液晶面板。 冷却装置布置在设备中,使得第一组冷却风扇吹送冷却空气以冷却液晶面板和偏振器,第二组冷却风扇吸入通过液晶面板和偏振器的冷却空气, 吹冷却空气以独立冷却光源,电源和镇流器。 因此,能够实现漏电少,噪音低的投影型显示装置。 本发明还提供了一种用于光源的冷却单元,其包括可移动灯室和具有冷却风扇的管道。

    Light source device having high limit-emitting efficiency
    19.
    发明授权
    Light source device having high limit-emitting efficiency 失效
    具有高限制发光效率的光源装置

    公开(公告)号:US07122946B2

    公开(公告)日:2006-10-17

    申请号:US10652831

    申请日:2003-08-29

    IPC分类号: H01J61/52

    摘要: There is provided a light source device, used in a display device and the like, having a high light emitting efficiency. The light source device has an electric discharge tube containing mercury and electrodes at both ends. A heat conducting member is attached to and is in contact with a part of the electric discharge tube. The heat conducting member locally cools the tube. The heat conducting member and the tube satisfy the following relationship, 6×10−5(m2·k)/S

    摘要翻译: 提供了具有高发光效率的用于显示装置等的光源装置。 光源装置具有在两端具有汞和电极的放电管。 导热构件附接到放电管的一部分并与其接触。 导热部件局部冷却管子。 导热构件和管满足以下关系:6×10 -5(m 2,...)/ S(1 / k1-1 / k2)W,其中 放电管的横截面积为S(m 2),放电管的每单位长度的发热量为W(W / m),非放电管的导热率, 冷却部分为k1(W / K / m),冷却部的导热率为k2(W / K / m)。

    Lighting unit
    20.
    发明申请
    Lighting unit 有权
    照明单元

    公开(公告)号:US20050276072A1

    公开(公告)日:2005-12-15

    申请号:US10676315

    申请日:2003-10-01

    摘要: The invention relates to a backlight unit for liquid crystal displays, etc.; and its object is to provide a backlight unit not involving the problem that the emitted light leaks out of the optical waveguide, even when the space around the cold-cathode tubes in the light source unit for it is filled with a liquid of which the refractive index is nearly the same as that of the glass material that forms the outer wall of the cold-cathode tubes. The backlight unit comprises a housing 6 which houses cold-cathode tubes 2, 4 therein and of which the inner surface is coated with a light reflector 10; a transparent liquid filled in the housing 6; and an optical waveguide 1 made of a transparent substance and having a light-emitting surface S. The reflective surface of the light reflector 10 has a cross-section profile of X-T-U-V-W-Y, on which the light emitted by the cold-cathode tubes 2,4 is reflected, and the thus-reflected light is led to the light-emitting surface S of the optical waveguide 1 at an incident angle not smaller than the critical angle to the surface S.

    摘要翻译: 本发明涉及液晶显示器等的背光单元。 其目的是提供一种背光单元,其不涉及发射的光从光波导中泄漏的问题,即使在其光源单元中的冷阴极管周围的空间填充有折射的液体 指数与形成冷阴极管的外壁的玻璃材料的指数几乎相同。 背光单元包括壳体6,壳体6中容纳冷阴极管2,4,其内表面涂覆有光反射体10; 填充在壳体6中的透明液体; 以及由透明物质制成并具有发光表面S的光波导1.光反射器10的反射表面具有XTUVWY的横截面轮廓,其上由冷阴极管2,4发射的光 被反射,并且将如此反射的光以不小于与表面S的临界角的入射角度导向光波导1的发光表面S.