Structures for reducing operating voltage in a semiconductor device
    4.
    发明授权
    Structures for reducing operating voltage in a semiconductor device 失效
    用于降低半导体器件中的工作电压的结构

    公开(公告)号:US07473941B2

    公开(公告)日:2009-01-06

    申请号:US11203917

    申请日:2005-08-15

    IPC分类号: H01L33/00

    CPC分类号: H01S5/305

    摘要: A light-emitting device comprises an active region configured to generate light in response to injected charge, and an n-type material layer and a p-type material layer, wherein at least one of the n-type material layer and the p-type material layer is doped with at least two dopants, at least one of the dopants having an ionization energy higher than the ionization energy level of the other dopant.

    摘要翻译: 发光装置包括响应于注入的电荷而被配置为产生光的有源区,以及n型材料层和p型材料层,其中n型材料层和p型材料层中的至少一种 材料层掺杂有至少两种掺杂剂,所述掺杂剂中的至少一种具有高于另一种掺杂剂的电离能级的电离能。

    Quantum Dot White and Colored Light-Emitting Devices
    6.
    发明申请
    Quantum Dot White and Colored Light-Emitting Devices 有权
    量子点白色和彩色发光器件

    公开(公告)号:US20120012877A1

    公开(公告)日:2012-01-19

    申请号:US13208169

    申请日:2011-08-11

    IPC分类号: H01L33/50 B82Y99/00 B82Y40/00

    摘要: A light-emitting device comprising a population of quantum dots (QDs) embedded in a host matrix and a primary light source which causes the QDs to emit secondary light and a method of making such a device. The size distribution of the QDs is chosen to allow light of a particular color to be emitted therefrom. The light emitted from the device may be of either a pure (monochromatic) color, or a mixed (polychromatic) color, and may consist solely of light emitted from the QDs themselves, or of a mixture of light emitted from the QDs and light emitted from the primary source. The QDs desirably are composed of an undoped semiconductor such as CdSe, and may optionally be overcoated to increase photoluminescence.

    摘要翻译: 一种发光装置,包括嵌入在主矩阵中的量子点群(QD)和导致QD发出二次光的初级光源以及制造这种器件的方法。 选择量子点的尺寸分布以允许从其发射特定颜色的光。 从装置发射的光可以是纯(单色)或混合(多色)颜色,并且可以仅由QDs本身发出的光或者从QD发出的光的混合物和发射的光 从主要来源。 QD理想地由诸如CdSe的未掺杂的半导体组成,并且可以任选地被涂覆以增加光致发光。

    EDGE-EMITTING LED ASSEMBLY
    7.
    发明申请
    EDGE-EMITTING LED ASSEMBLY 审中-公开
    边缘发光LED组件

    公开(公告)号:US20100032703A1

    公开(公告)日:2010-02-11

    申请号:US12579494

    申请日:2009-10-15

    IPC分类号: H01L33/00

    CPC分类号: H01L33/46

    摘要: A light-emitting diode (LED) in accordance with the invention includes an edge-emitting LED stack having an external emitting surface from which light is emitted, and a reflective element that is located adjacent to at least one external surface of the LED stack other than the external emitting surface. The reflective element receives light that is generated inside the LED stack and reflects the received light back into the LED stack. At least a portion of the reflected light is then emitted from the external emitting surface.

    摘要翻译: 根据本发明的发光二极管(LED)包括具有发射光的外部发射表面的边缘发射LED堆叠以及与LED堆叠的至少一个外表面相邻的反射元件 比外部发光面。 反射元件接收在LED堆叠内产生的光并将接收的光反射回LED堆叠。 反射光的至少一部分然后从外部发射表面发射。

    Quantum dot white and colored light-emitting devices
    8.
    发明授权
    Quantum dot white and colored light-emitting devices 有权
    量子点白色和彩色发光装置

    公开(公告)号:US08362684B2

    公开(公告)日:2013-01-29

    申请号:US13465553

    申请日:2012-05-07

    IPC分类号: H01L51/00

    摘要: A light-emitting device comprising a population of quantum dots (QDs) embedded in a host matrix and a primary light source which causes the QDs to emit secondary light and a method of making such a device. The size distribution of the QDs is chosen to allow light of a particular color to be emitted therefrom. The light emitted from the device may be of either a pure (monochromatic) color, or a mixed (polychromatic) color, and may consist solely of light emitted from the QDs themselves, or of a mixture of light emitted from the QDs and light emitted from the primary source. The QDs desirably are composed of an undoped semiconductor such as CdSe, and may optionally be overcoated to increase photoluminescence.

    摘要翻译: 一种发光装置,包括嵌入在主矩阵中的量子点群(QD)和导致QD发出二次光的初级光源以及制造这种器件的方法。 选择量子点的尺寸分布以允许从其发射特定颜色的光。 从装置发射的光可以是纯(单色)或混合(多色)颜色,并且可以仅由QDs本身发出的光或者从QD发出的光的混合物和发射的光 从主要来源。 QD理想地由诸如CdSe的未掺杂的半导体组成,并且可以任选地被涂覆以增加光致发光。

    Methods and systems for detecting selections on a touch screen display
    9.
    发明授权
    Methods and systems for detecting selections on a touch screen display 失效
    用于检测触摸屏显示器上的选择的方法和系统

    公开(公告)号:US07629968B2

    公开(公告)日:2009-12-08

    申请号:US11193155

    申请日:2005-07-29

    IPC分类号: G09G5/00

    CPC分类号: G06F3/0428 G06F2203/04109

    摘要: Light beam focusing components direct light from the top surface of a touch screen display to one or more imagers. The imager or imagers capture one or more images of the top surface of the touch screen display. A processing unit analyzes the image or images to determine the position of an input device on or near the top surface of the touch screen display.

    摘要翻译: 光束聚焦组件将光从触摸屏显示器的顶表面引导到一个或多个成像器。 成像器或成像器捕获触摸屏显示器顶表面的一个或多个图像。 处理单元分析图像或图像以确定在触摸屏显示器的顶表面上或附近的输入设备的位置。

    Wide-band tunable optical filter using electroholograms written into photorefractive crystals
    10.
    发明授权
    Wide-band tunable optical filter using electroholograms written into photorefractive crystals 失效
    宽带可调光滤波器,使用电折射写入光折变晶体

    公开(公告)号:US06804059B2

    公开(公告)日:2004-10-12

    申请号:US10033201

    申请日:2001-12-27

    IPC分类号: G02B518

    摘要: A tunable optical filter utilizes multiple electroholographic (EH) gratings with different center wavelengths to filter an optical signal over a wide wavelength range. The EH gratings are connected such that an input optical signal passes through at least one of the EH gratings. The EH gratings are activated and tuned by electrode pairs that are controlled through a voltage controller. The tunable optical filter is coarse tuned by activating the EH gratings having a wavelength range that includes the center wavelength that is to be filtered and fine tuned by adjusting the voltage that is applied across the activated EH gratings.

    摘要翻译: 可调光滤波器利用具有不同中心波长的多个电子照相(EH)光栅来在宽波长范围内对光信号进行滤波。 EH光栅被连接成使得输入光信号通过至少一个EH光栅。 EH光栅通过电压控制器控制的电极对被激活和调谐。 通过激活具有包括待滤波的中心波长的波长范围的EH光栅,通过调节施加在激活的EH光栅上的电压进行微调,可调谐滤光器被粗调。