Backlight and liquid crystal display device

    公开(公告)号:US06609807B2

    公开(公告)日:2003-08-26

    申请号:US09921753

    申请日:2001-08-06

    IPC分类号: F21V704

    摘要: A backlight 7 has light sources 2, a flat-plate-shaped light guide plate 3 for guiding the light emitted from the light sources 2 in a predetermined direction, a light shield louver 5, disposed so as to face the light guide plate 3, for shielding part of the light emerging from the light guide plate 3 according to angles of incidence, and a prism sheet 8 for converting the brightness distribution of the light incident on the light shield louver 5 into a predetermined brightness distribution. Owing to the prism sheet 8, the light incident on the light shield louver exhibits a brightness distribution such that brightness is at a minimum at an angle of incidence of 0°. Thus, the backlight 7, and a liquid crystal display device 1 employing it, permits light to emerge therefrom within a desired range of viewing angles while offering high brightness within that range, with reduced degradation of viewability.

    Backlighting device and a method of manufacturing the same, and a liquid crystal display apparatus
    3.
    发明授权
    Backlighting device and a method of manufacturing the same, and a liquid crystal display apparatus 失效
    背光装置及其制造方法以及液晶显示装置

    公开(公告)号:US06412969B1

    公开(公告)日:2002-07-02

    申请号:US09460720

    申请日:1999-12-14

    IPC分类号: F21V704

    摘要: A backlighting device including: a light guide unit formed as a substantially flat panel of a first resin material having opposing surfaces and side faces, the light guide unit having a light guide section, wherein light enters the light guide unit through at least one of the side faces and is emitted from one of the opposing surfaces; and a light source element disposed adjacent to the at least one side face of the light guide section for irradiating light onto the at least one side face of the light guide section. The light guide unit further includes a light scattering section formed of a second resin material, the light scattering section substantially perpendicularly protruding from the at least one side face of the light guide unit, and the light scattering section overlies the light source element along a direction of travel of the light exiting from the light guide section so as to scatter the light irradiated by the light source element.

    摘要翻译: 一种背光装置,包括:导光单元,形成为具有相对表面和侧面的第一树脂材料的基本平坦的面板,所述导光单元具有导光部,其中,光通过所述导光单元中的至少一个进入所述导光单元, 并且从相对表面中的一个发射; 以及与所述导光部的所述至少一个侧面相邻配置的用于将光照射到所述导光部的所述至少一个侧面的光源元件。 导光单元还包括由第二树脂材料形成的光散射部分,所述光散射部分基本上垂直地从所述导光单元的至少一个侧面突出,并且所述光散射部分沿着所述光源元件的方向 从导光部分出射的光的行进,以散射由光源元件照射的光。

    Light-writing-type liquid crystal element having a photoconductor
between carrier blocking layers
    4.
    发明授权
    Light-writing-type liquid crystal element having a photoconductor between carrier blocking layers 失效
    在载体阻挡层之间具有光电导体的光写型液晶元件

    公开(公告)号:US5693958A

    公开(公告)日:1997-12-02

    申请号:US588257

    申请日:1996-01-18

    CPC分类号: G02F1/135

    摘要: A light-writing-type liquid crystal element which is provided with carrier-blocking layers that are installed on the transparent electrode side and on the light-shielding layer side of a photoconductive layer and that prevents carriers from entering the photoconductive layer. By adjusting the width of a depletion layer that is formed by the carrier-blocking layers and other factors, the energy-band structure of the photoconductive layer is kept asymmetric so that when a voltage is applied onto the photoconductive layer, the area on the writing-light incident-side of the photoconductive layer receives a higher voltage than that of the area on the liquid-crystal-layer side. Consequently, the photosensitivity of the photoconductive layer is improved, and the resolution as well as the contrast of the element can be improved.

    摘要翻译: 一种写入型液晶元件,其设置有载流子阻挡层,其安装在光电导层的透明电极侧和遮光层侧,并且防止载流子进入光电导层。 通过调整由载流子阻挡层形成的耗尽层的宽度和其他因素,光电导层的能带结构保持不对称,使得当在光电导层上施加电压时,写入区域 光电导层的光入射侧接收比液晶层侧的面积更高的电压。 因此,光电导层的光敏性提高,并且可以提高元件的分辨率以及对比度。

    Light guide body, lighting device, liquid crystal display device, and electronic device
    5.
    发明申请
    Light guide body, lighting device, liquid crystal display device, and electronic device 有权
    导光体,照明装置,液晶显示装置以及电子装置

    公开(公告)号:US20050063172A1

    公开(公告)日:2005-03-24

    申请号:US10941966

    申请日:2004-09-16

    申请人: Hiroshi Torihara

    发明人: Hiroshi Torihara

    CPC分类号: G02B6/0043

    摘要: In the present light guide body, a flat part is provided at an edge part of a fluorescent tube vicinal part (part that receives strong light), and a pear-skin texture pattern having a sine wave shape boundary is formed inside the flat part. Therefore, it is possible to alternately provide, along a direction to which the fluorescent tube extends, small pear-skin texture regions and small flat regions. That is, scattering intensity of the light guide body is set so that it becomes stronger gradually from the edge part close to the fluorescent tube toward the inside far from the fluorescent tube. The quantity of the light incident on the back surface becomes less from the edge part toward the internal side. Therefore, it is possible for the light guide body to uniformize a light scattering quantity of each portion of the back surface. As a result, the light guide body can uniformize the light emitted from a surface over the entire surface of the light guide body.

    摘要翻译: 在本导光体中,在荧光管相邻部(接收强光的部分)的边缘部设置有平坦部,并且在平坦部内形成具有正弦波形边界的梨皮纹理图案。 因此,可以沿着荧光管延伸的方向交替地提供小的梨皮纹理区域和小的平坦区域。 也就是说,导光体的散射强度被设定为使得从靠近荧光管的边缘部分朝向远离荧光管的内部逐渐变强。 入射到背面的光量从边缘部朝向内侧变小。 因此,导光体能够使后表面的各部分的光散射量均匀化。 结果,导光体能够使从导光体的整个表面的表面发出的光均匀化。

    Lighting apparatus
    6.
    发明申请
    Lighting apparatus 审中-公开
    照明设备

    公开(公告)号:US20050280343A1

    公开(公告)日:2005-12-22

    申请号:US11131862

    申请日:2005-05-18

    申请人: Hiroshi Torihara

    发明人: Hiroshi Torihara

    IPC分类号: G02F1/13357 H01J61/40

    摘要: A plurality of rare gas electric discharge lamps (14, 15) is disposed side by side on a side end surface of a light guide member (13) by making polarities of the rare gas electric discharge lamps (14, 15) coincident with each other. Poles (14a, 15a) of the rare gas electric discharge lamps (14, 15) at a grounding side thereof are electrically connected to each other. An inverter substrate (voltage control part) (21) is connected to the poles (14b, 15b) of the rare gas electric discharge lamps (14, 15) disposed at a voltage-applying side thereof. The inverter substrate (21) turns on one or both of the rare gas electric discharge lamps (14, 15) and changes a voltage to be applied to the rare gas electric discharge lamp (14). Thereby the luminance can be adjusted.

    摘要翻译: 通过使稀有气体放电灯(14,15)的极性彼此一致,多个稀有气体放电灯(14,15)被并排设置在导光构件(13)的侧端面上 。 在其接地侧的稀有气体放电灯(14,15)的极(14a,15a)彼此电连接。 逆变器基板(电压控制部)21与配置在电压施加侧的稀有气体放电灯(14,15)的极(14b,15b)连接。 逆变器基板(21)接通一个或两个稀有气体放电灯(14,15),并改变施加到稀有气体放电灯(14)的电压。 从而可以调整亮度。

    Light guide body, lighting device, liquid crystal display device, and electronic device
    7.
    发明授权
    Light guide body, lighting device, liquid crystal display device, and electronic device 有权
    导光体,照明装置,液晶显示装置以及电子装置

    公开(公告)号:US07267471B2

    公开(公告)日:2007-09-11

    申请号:US10941966

    申请日:2004-09-16

    申请人: Hiroshi Torihara

    发明人: Hiroshi Torihara

    IPC分类号: F21V8/00

    CPC分类号: G02B6/0043

    摘要: In a light guide body, a flat part is provided at an edge part of a fluorescent tube vicinal part (part that receives strong light), and a pear-skin texture pattern having a sine wave shape boundary is formed inside the flat part. Therefore, it is possible to alternately provide, along a direction to which the fluorescent tube extends, small pear-skin texture regions and small flat regions. In certain example embodiments, scattering intensity of the light guide body is set so that it becomes stronger gradually from the edge part close to the fluorescent tube toward the inside far from the fluorescent tube.

    摘要翻译: 在导光体中,在荧光管相邻部(接收强光的部分)的边缘部设置有平坦部,并且在平坦部内形成具有正弦波形边界的梨皮纹理图案。 因此,可以沿着荧光管延伸的方向交替地提供小的梨皮纹理区域和小的平坦区域。 在某些示例性实施例中,导光体的散射强度被设定为使得从靠近荧光管的边缘部分向远离荧光管的内侧逐渐变强。