Projector
    23.
    发明授权
    Projector 有权
    投影机

    公开(公告)号:US06513936B1

    公开(公告)日:2003-02-04

    申请号:US09612668

    申请日:2000-07-10

    IPC分类号: G03B2118

    摘要: A projector includes a first housing, a second housing, and a sound insulating member. The first housing is provided with first heat-generating elements used for generating an image, first fans producing cooling airflows towards each one of the first heat-generating elements, and vents via which the cooling airflows heated by the first heat-generating elements are discharged. The second housing encloses the first housing, and has second fans discharging the cooling airflows outside the projector. The sound insulating member is provided on a path between the vents and the second fans so as to insulate sound produced by the first fans. The projector may be provided with a dust-proof member for the projecting lens.

    摘要翻译: 投影仪包括第一壳体,第二壳体和隔音构件。 第一壳体设置有用于产生图像的第一发热元件,第一风扇朝向第一发热元件中的每一个产生冷却气流,以及通过第一发热元件加热的冷却气流被排出的通风口 。 第二壳体包围第一壳体,并且具有第二风扇排出投影仪外部的冷却气流。 隔音构件设置在通风口和第二风扇之间的路径上,以便使由第一风扇产生的声音绝缘。 投影仪可以设置有用于投影透镜的防尘构件。

    Lighting unit and display device
    27.
    发明授权
    Lighting unit and display device 有权
    照明单元和显示设备

    公开(公告)号:US07163331B2

    公开(公告)日:2007-01-16

    申请号:US10641720

    申请日:2003-08-15

    IPC分类号: F21V7/04 F21V8/00

    摘要: A lighting unit and a liquid crystal display device which can improve the efficiency of usable light. The lighting unit includes a light source, a light guide plate, and a truncated pyramid located between the light guide plate and the light source. The truncated pyramid has a base, a top smaller than the base, and a slope linking the base and the top. The light source is placed in close contact with the top of the truncated pyramid, and the light guide plate is placed in close contact with the base of the truncated pyramid. Light is propagated from a light emitting part of the light source to the light guide plate without passing through any air layer. Also, an unnecessary light removing structure is provided in the light guide plate near the incidence surface thereof.

    摘要翻译: 照明单元和能够提高可用光效率的液晶显示装置。 照明单元包括光源,导光板和位于导光板和光源之间的截头棱锥。 截头棱锥具有基部,顶部小于基部,以及连接基部和顶部的斜面。 光源被放置成与截顶的金字塔的顶部紧密接触,并且导光板被放置成与截顶金字塔的基部紧密接触。 光从光源的发光部分传播到导光板,而不通过任何空气层。 而且,在导光板的入射面附近设有不必要的光去除结构。

    Protection type display device with polarized light reflecting mirror
and polarized light source
    28.
    发明授权
    Protection type display device with polarized light reflecting mirror and polarized light source 失效
    具有偏振光反射镜和偏振光源的投射型显示装置

    公开(公告)号:US5826960A

    公开(公告)日:1998-10-27

    申请号:US889973

    申请日:1997-07-10

    CPC分类号: H04N9/3167

    摘要: A display device includes a reflective type polarizer, a light valve, an analyzer, a mirror, and a polarization rotating film. The polarizer allows a first polarized light to pass therethrough and a second polarized light to be reflected thereby. The second polarized light is then reflected to the polarizer by the mirror, and the vibrating plane of the second polarized light is rotated by the polarization rotating film, so that the second polarized light can pass through the polarizer. The polarizer is inclined to an optical axis of the device. The mirror is arranged near the light source. This principle is also applied to a projection type color display device. In addition, a polarized light source including a lamp, a reflector, a polarizer, a mirror, and a polarization rotating film is disclosed.

    摘要翻译: 显示装置包括反射型偏振器,光阀,分析器,反射镜和偏振旋转膜。 偏振器允许第一偏振光通过,并且第二偏振光由此反射。 然后第二偏振光通过反射镜被反射到偏振器,并且第二偏振光的振动平面被偏振旋转膜旋转,使得第二偏振光可以通过偏振器。 偏振器相对于该装置的光轴倾斜。 镜子安置在光源附近。 该原理也适用于投影型彩色显示装置。 此外,公开了一种包括灯,反射器,偏振器,反射镜和偏振旋转膜的偏振光源。

    Illumination device and liquid crystal display device using the same
    29.
    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。