Thin Backlight Using Low Profile Side Emitting LED
    3.
    发明申请
    Thin Backlight Using Low Profile Side Emitting LED 审中-公开
    使用薄型侧面发光LED的薄背光

    公开(公告)号:US20090046479A1

    公开(公告)日:2009-02-19

    申请号:US11840130

    申请日:2007-08-16

    IPC分类号: F21V7/04 G02B6/10

    摘要: Low profile, side-emitting LEDs are described. The LEDs are used in very thin backlights for backlighting an LCD. In one embodiment, the backlight comprises a solid transparent waveguide with at least one opening in the waveguide containing an LED proximate to one edge. To smooth out a clover-shaped or batwing brightness profile inherently generated by a rectangular side-emitting LED within a smooth-sided rectangular opening in the waveguide, depending on the orientation of the LED, the sidewalls of the opening are made to have varying angles along the length of each sidewall to vary the refraction angle of light along the sidewall. Additionally, if a plurality of LEDs are used in the backlight, the orientations of the openings alternate to create a more uniform brightness profile in the waveguide.

    摘要翻译: 描述了侧面发光的LED。 LED用于非常薄的背光,用于背光LCD。 在一个实施例中,背光包括固体透明波导,其中波导中的至少一个开口包含靠近一个边缘的LED。 为了平滑由波导中的平滑侧矩形开口内的矩形侧面发光LED固有地产生的三叶草形状或蝙蝠翼亮度分布,取决于LED的取向,开口的侧壁被制成具有变化的角度 沿着每个侧壁的长度改变沿着侧壁的光的折射角。 此外,如果在背光中使用多个LED,则开口的取向交替以在波导中产生更均匀的亮度分布。

    WAVELENGTH-CONVERTED SEMICONDUCTOR LIGHT EMITTING DEVICE
    4.
    发明申请
    WAVELENGTH-CONVERTED SEMICONDUCTOR LIGHT EMITTING DEVICE 审中-公开
    波长转换半导体发光器件

    公开(公告)号:US20110062472A1

    公开(公告)日:2011-03-17

    申请号:US12561759

    申请日:2009-09-17

    申请人: Oleg B. SHCHEKIN

    发明人: Oleg B. SHCHEKIN

    IPC分类号: H01L33/00

    摘要: A light emitting diode includes a semiconductor structure comprising a light emitting layer disposed between an n-type region and a p-type region, and n- and p-contacts disposed on the n- and p-type regions. The light emitting layer is configured to emit light of a first peak wavelength. A wavelength converting material is positioned in a path of light emitted by the light emitting layer. The wavelength converting material is configured to absorb light of the first peak wavelength and emit light of a second peak wavelength. The light emitting diode is configured such that a light emission pattern from the light emitting diode complements a light emission pattern from the wavelength converting material.

    摘要翻译: 发光二极管包括包括设置在n型区域和p型区域之间的发光层以及设置在n型区域和p型区域上的n型和p型触点的半导体结构。 发光层被配置为发射第一峰值波长的光。 波长转换材料位于由发光层发射的光的路径中。 波长转换材料被配置为吸收第一峰值波长的光并发射第二峰值波长的光。 发光二极管被配置为使得来自发光二极管的发光图案与波长转换材料补充发光图案。

    REMOTE WAVELENGTH CONVERTING MATERIAL CONFIGURATION FOR LIGHTING
    5.
    发明申请
    REMOTE WAVELENGTH CONVERTING MATERIAL CONFIGURATION FOR LIGHTING 有权
    远程波长转换材料配置

    公开(公告)号:US20100277950A1

    公开(公告)日:2010-11-04

    申请号:US12432521

    申请日:2009-04-29

    IPC分类号: F21V7/22

    摘要: A device includes a reflector and a wavelength converting material disposed on the reflector. A backlight is disposed between the reflector and a surface to be illuminated, such as a liquid crystal display panel. The backlight includes a light source and a waveguide. The waveguide is configured to direct a majority of light from the light source toward the reflector. At least a portion of the light is converted by the wavelength converted material, reflected by the reflector, and incident on the surface to be illuminated.

    摘要翻译: 一种装置包括反射器和布置在反射器上的波长转换材料。 背光源配置在反射体和被照射面之间,如液晶显示面板。 背光包括光源和波导。 波导被配置为将来自光源的大部分光引向反射器。 光的至少一部分被波长转换的材料转换,被反射体反射并入射到被照射的表面上。

    Thin backlight with flipped light emitting diode
    7.
    发明授权
    Thin backlight with flipped light emitting diode 失效
    带背光发光二极管的薄背光

    公开(公告)号:US07534025B2

    公开(公告)日:2009-05-19

    申请号:US11467522

    申请日:2006-08-25

    IPC分类号: F21V7/041

    摘要: One or more LEDs are mounted within an LCD without the use of any printed circuit board (PCB), thus reducing the thickness of the LCD by about the thickness of the conventional PCB. In one embodiment, the LED and submount are mounted so that the submount is opposing the liquid crystal layer side of the LCD, so that the liquid crystal layers provide the mechanical support for the submount and LED die. The LED die (mounted on the submount) may be inserted into a cavity formed in the “top” surface of the light guide, and the top surface of the light guide is abutted against the liquid crystal layers. In such a configuration, the LED light source, including all supporting components, adds no thickness to the LCD. In another embodiment, on the “bottom” surface of the LCD opposing the LED die is an electrically switchable mirror that is either reflective or transparent. In its transparent state, the LED in the LCD may be used as a flash in a cell phone camera, while the LCD may be viewed to take the picture.

    摘要翻译: 一个或多个LED安装在LCD中,而不使用任何印刷电路板(PCB),从而将LCD的厚度减小约传统PCB的厚度。 在一个实施例中,安装LED和基座,使得底座与LCD的液晶层侧相对,使得液晶层为子安装座和LED管芯提供机械支撑。 LED模具(安装在基座上)可以插入到形成在导光体的“顶部”表面中的空腔中,并且导光体的顶表面与液晶层抵接。 在这种构造中,包括所有支撑部件的LED光源不向LCD增加厚度。 在另一个实施例中,在与LED管芯相对的LCD的“底部”表面上是可反射或透明的可电换镜。 在其透明状态下,LCD中的LED可以用作手机相机中的闪光灯,而LCD可以被观看拍摄照片。

    LIGHT EXTRACTION BRIDGE IN CUPS
    9.
    发明申请

    公开(公告)号:US20200292149A1

    公开(公告)日:2020-09-17

    申请号:US16815706

    申请日:2020-03-11

    摘要: A light emitting device may comprise a cup having a wall extending from a first area of the cup to a second area of the cup. The wall is formed from or coated with a reflective material. The light emitting device may comprise a light extraction bridge extending beyond an outer diameter of at least a portion of the wall for directing light into the air. The light may be produced by an LED die mounted at the second area of the cup such that at least some of a light emitted from the LED die exits the cup, having been reflected from the wall and the light extraction bridge.