Nitride-based semiconductor device of reduced voltage drop, and method of fabrication
    31.
    发明申请
    Nitride-based semiconductor device of reduced voltage drop, and method of fabrication 有权
    降低电压降的氮化物半导体器件及其制造方法

    公开(公告)号:US20060175628A1

    公开(公告)日:2006-08-10

    申请号:US11378963

    申请日:2006-03-17

    IPC分类号: H01L33/00 H01L21/00

    摘要: A light-emitting diode is built on a silicon substrate which has been doped with a p-type impurity to possess sufficient conductivity to provide part of the current path through the LED. The p-type silicon substrate has epitaxially grown thereon a buffer region of n-type AlInGaN. Further grown epitaxially on the buffer region is the main semiconductor region of the LED which comprises a lower confining layer of n-type GaN, an active layer for generating light, and an upper confining layer of p-type GaN. In the course of the growth of the buffer region and main semiconductor region there occurs a thermal diffusion of gallium and other Group III elements from the buffer region into the p-type silicon substrate, with the consequent creation of a p-type low-resistance region in the substrate. Interface levels are created across the heterojunction between p-type silicon substrate and n-type buffer region. The interface levels expedite carrier transport from substrate to buffer region, contributing to reduction of the drive voltage requirement of the LED.

    摘要翻译: 在已经掺杂有p型杂质的硅衬底上建立发光二极管以具有足够的导电性以提供通过LED的电流路径的一部分。 p型硅衬底在其上外延生长n型AlInGaN的缓冲区。 在缓冲区域外延生长的是LED的主要半导体区域,其包括n型GaN的下约束层,用于产生光的有源层和p型GaN的上部约束层。 在缓冲区和主半导体区域的生长过程中,发生镓和其他III族元素从缓冲区到p型硅衬底的热扩散,随之产生p型低电阻 区域。 在p型硅衬底和n型缓冲区之间的异质结上形成界面电平。 接口电平加快了从衬底到缓冲区域的载流子传输,有助于降低LED的驱动电压要求。

    Nitride semiconductor substrate, method of fabrication thereof, and semiconductor element built thereon
    33.
    发明申请
    Nitride semiconductor substrate, method of fabrication thereof, and semiconductor element built thereon 有权
    氮化物半导体衬底,其制造方法和其上构建的半导体元件

    公开(公告)号:US20050110043A1

    公开(公告)日:2005-05-26

    申请号:US10988889

    申请日:2004-11-15

    摘要: A substrate system of the kind having a buffer region interposed between a silicon substrate proper and a nitride semiconductor region in order to make up for a difference in linear expansion coefficient therebetween. Electrodes are formed on the nitride semiconductor layer or layers in order to provide HEMTs or MESFETs. The buffer region is a lamination of a multiplicity of buffer layers each comprising a first, a second, and a third buffer sublayer of nitride semiconductors, in that order from the silicon substrate proper toward the nitride semiconductor region. The three sublayers of each buffer layer contain aluminum in varying proportions including zero. The aluminum proportion of the third buffer sublayer is either zero or intermediate that of the first buffer sublayer and that of the second. The low aluminum proportion of the third buffer sublayer serves to prevent two-dimensional electron gas from generating in the buffer region and hence to make this region sufficiently high in resistance to inhibit current leakage from the HEMTs or MESFETs.

    摘要翻译: 这种衬底系统具有介于硅衬底本体和氮化物半导体区域之间的缓冲区域,以补偿它们之间的线膨胀系数差。 为了提供HEMT或MESFET,在氮化物半导体层上形成电极。 缓冲区域是从硅衬底本身朝向氮化物半导体区域的顺序,分别包括氮化物半导体的第一,第二和第三缓冲子层的多个缓冲层的叠层。 每个缓冲层的三个子层含有不同比例的铝,包括零。 第三缓冲器子层的铝比例为零或与第一缓冲子层的第二缓冲层的铝比例为中等。 第三缓冲层的低铝比例用于防止在缓冲区域中产生二维电子气,从而使该区域具有足够高的电阻,以防止来自HEMT或MESFET的电流泄漏。

    Light-emitting semiconductor device and method of fabrication
    34.
    发明申请
    Light-emitting semiconductor device and method of fabrication 失效
    发光半导体器件及其制造方法

    公开(公告)号:US20050110029A1

    公开(公告)日:2005-05-26

    申请号:US10994922

    申请日:2004-11-22

    IPC分类号: H01L33/00 H01L33/04 H01L33/14

    摘要: A light-emitting diode having a silicon substrate on which there are successively formed a buffer layer, a p-type nitride semiconductor layer, an active layer, an n-type nitride semiconductor layer, and a current spreading layer. The current spreading layer is a lamination of a first and a second sublayer arranged alternately a required number of times. Composed of different compound semiconductors, the alternating sublayers of the current spreading layer create heterojunctions for offering the two-dimensional gas effect. The current spreading layer is so low in resistivity in a direction parallel to its major surface from which light is emitted, that the current is favorably spread therein for improved efficiency of light emission. A front electrode in the form of a metal pad is mounted centrally on the major surface of the current spreading layer in ohmic contact therewith.

    摘要翻译: 具有硅衬底的发光二极管,其上依次形成缓冲层,p型氮化物半导体层,有源层,n型氮化物半导体层和电流扩散层。 电流扩展层是交替需要次数布置的第一和第二子层的叠层。 由不同的化合物半导体组成,电流扩展层的交替子层产生用于提供二维气体效应的异质结。 电流扩散层在平行于其从其发射光的主表面的方向上的电阻率如此低,使得电流有利地扩散在其中以提高发光效率。 金属焊盘形式的前电极以电流扩散层的主表面中心地安装在其与其电阻接触的位置。

    Noise-cancelling headphone
    35.
    发明授权

    公开(公告)号:US09959858B2

    公开(公告)日:2018-05-01

    申请号:US15228313

    申请日:2016-08-04

    摘要: A noise-cancelling headphone is provided that avoids an influence of the wind and prevents degradation in the sound quality of the reproduced sound output from a driver unit. The noise-cancelling headphone includes an ear piece including a housing unit having an interior and an exterior, a driver unit attached to the housing unit, and a microphone collecting external sounds at the exterior of the housing unit. The housing unit includes an accommodating portion accommodating the microphone and a sound collecting hole establishing the communication between the accommodating portion and the exterior of the housing unit. The accommodating portion is disposed in an upper portion of the housing unit of the noise-cancelling headphone when worn by the user. The sound collecting hole is open toward the upper side of the housing unit of the noise-cancelling headphone when worn by the user.

    LIGHTING DEVICE
    36.
    发明申请
    LIGHTING DEVICE 失效
    照明设备

    公开(公告)号:US20120063141A1

    公开(公告)日:2012-03-15

    申请号:US13208014

    申请日:2011-08-11

    申请人: Koji Otsuka

    发明人: Koji Otsuka

    IPC分类号: F21S8/04

    摘要: A lighting device is provided to include a plurality of lens bodies. The connecting portion connecting the plurality of lens bodies includes a first major surface and a second major surface opposite to the first major surface. The first major surface is in contact with the lateral portion at a first contact under an outer edge of the leading lens. The second major surface is in contact with the lateral portion at a second contact located below the first contact. The first contact is located outside of a point of intersection along the first major surface with respect to the center of each lens body, the point of intersection at which an extraction of the first major surface intersects with an extension of a ray of the emitted light which is incident on the light incident surface and is projected on the second contact.

    摘要翻译: 提供照明装置以包括多个透镜体。 连接多个透镜体的连接部分包括与第一主表面相对的第一主表面和第二主表面。 第一主表面在引导透镜的外边缘处的第一接触处与侧部接触。 第二主表面位于第一触点下方的第二触点处与侧部接触。 相对于每个透镜体的中心,第一触点位于沿第一主表面的交点以外,第一主表面的提取与发射光线的延伸相交的交点 其入射在光入射表面上并且被投影在第二触点上。

    SPECIFIED COLOR AREA DEMARCATION CIRCUIT, DETECTION CIRCUIT, AND IMAGE PROCESSING APPARATUS USING SAME
    37.
    发明申请
    SPECIFIED COLOR AREA DEMARCATION CIRCUIT, DETECTION CIRCUIT, AND IMAGE PROCESSING APPARATUS USING SAME 审中-公开
    指定的彩色区域解像电路,检测电路和图像处理装置

    公开(公告)号:US20110216967A1

    公开(公告)日:2011-09-08

    申请号:US13127434

    申请日:2009-10-23

    IPC分类号: G06K9/00

    摘要: A specified color area demarcation circuit 6 has a luminance information (histogram) acquisition unit 3 for multiple pixels and a luminance information (histogram) analysis unit 5 for the multiple pixels. The luminance information (histogram) acquisition unit 3 for the multiple pixels acquires luminance information of the multiple pixels in an input image. In order to acquire the luminance information of the multiple pixels, the luminance information (histogram) acquisition unit 3 creates, for example, a histogram of the luminance indicating frequencies. As an example of the histogram, 0 to 255 gray levels in an image are divided into thirty-two (0-7, 8-15, . . . 240-247, 247-255) ranges, and the number of pixels present in each of the divided gray levels (luminance Y) is counted. In order to extract the feature value of the luminance information of the multiple pixels in the input image, the luminance information analysis unit 5 analyzes, for example, the histogram of the luminance values of the multiple pixels to extract the feature value representing a feature of the histogram. On the basis of the feature value, the luminance information analysis unit 5 obtains the coefficient for demarcating the specified color area. Thereby, it is possible to display an image of the specified color area with high precision.

    摘要翻译: 指定的颜色区域分界电路6具有用于多个像素的亮度信息(直方图)获取单元3和用于多个像素的亮度信息(直方图)分析单元5。 用于多个像素的亮度信息(直方图)获取单元3获取输入图像中的多个像素的亮度信息。 为了获取多个像素的亮度信息,亮度信息(直方图)获取单元3创建例如亮度指示频率的直方图。 作为直方图的示例,图像中的0到255个灰度级被划分为32个(0-7,8-15,...,240-247,247-255)范围,并且存在于 对每个分割灰度级(亮度Y)进行计数。 为了提取输入图像中的多个像素的亮度信息的特征值,亮度信息分析单元5例如分析多个像素的亮度值的直方图,以提取表示特征的特征值 直方图。 亮度信息分析部5基于特征量,求出用于划定指定色域的系数。 由此,可以高精度地显示指定颜色区域的图像。

    Multi-Component Food Packaging For Microwave Oven
    38.
    发明申请
    Multi-Component Food Packaging For Microwave Oven 有权
    微波炉多组分食品包装

    公开(公告)号:US20110120993A1

    公开(公告)日:2011-05-26

    申请号:US12950478

    申请日:2010-11-19

    IPC分类号: H05B6/80 B65D25/04 B65D1/34

    摘要: A multi-component package is provided which enables simultaneous heat cooking of a food product which does not require a long cooking time and a food product which requires a longer cooking time. The multi-component package includes a lower container comprising a bottomed, lower container main body for containing a first food product. The container further includes an upper container comprising an upper container main body for containing a second filled food product. A flange of the lower container main body and a flange of the upper container main body are engaged with each other so that the lower container and the upper container are combined integrally. A vapor vent is provided in a lower container lid material, whereby water vapor generated upon heating of the first food product heats the second food product in the upper container.

    摘要翻译: 提供了一种多组件包装,其能够同时进行不需要较长烹饪时间的食品的热烹饪和需要更长烹饪时间的食品。 该多组件包装件包括一个下容器,该容器包括用于容纳第一食品的有底的下容器主体。 该容器还包括一上部容器,该容器包括用于容纳第二填充食品的上容器主体。 下容器主体的凸缘和上容器主体的凸缘彼此接合,使得下容器和上容器组合成一体。 在下部容器盖材料中设置蒸气排出口,由此在第一食品加热时产生的水蒸气加热上部容器中的第二食品。

    LED array for microdisplays or like application
    39.
    发明授权
    LED array for microdisplays or like application 有权
    用于微型显示器或类似应用的LED阵列

    公开(公告)号:US07923738B2

    公开(公告)日:2011-04-12

    申请号:US12265887

    申请日:2008-11-06

    IPC分类号: H01L29/18

    摘要: An array of LEDs are grown by epitaxy on row-connecting conductor strips extending in parallel spaced relationship to one another on the surface of a semiconductor substrate and are thereby electrically interconnected in rows. The row-connecting conductor strips are formed by ion implantation of a p-type dopant into parts of an n-type silicon substrate. Column-connecting conductor strips extend over the light-emitting surfaces of the LEDs for electrically interconnecting them in columns. The LEDs are lit up individually by voltage application between one of the row-connecting conductor strips and one of the column-connecting conductor strips.

    摘要翻译: LED阵列通过在半导体衬底的表面上彼此平行间隔延伸的行连接导体条上进行外延生长,从而以行电互连。 行连接导体条通过将p型掺杂剂离子注入到n型硅衬底的部分中而形成。 列连接导体条在LED的发光表面上延伸,以将它们串联在列中。 通过在一行之间的行连接导体条和一个列连接导体条之间的电压单独点亮LED。

    IMAGE DISPLAY
    40.
    发明申请
    IMAGE DISPLAY 审中-公开
    图像显示

    公开(公告)号:US20100214325A1

    公开(公告)日:2010-08-26

    申请号:US12681497

    申请日:2008-10-02

    IPC分类号: G09G5/10 H04N5/44 G09G3/30

    摘要: An image display (A) comprises a display unit (1) such as a liquid crystal panel, a light source (3) such as a backlight, a light source control section (5), a video signal processing section (7) for outputting a signal to control the display unit in accordance with an input signal (S1), and a control section (11) for controlling the whole including light source control and video image control. The control section (11) has a video-image analyzing block (15) for analyzing a video image on the basis of the input signal (S1), a target value setting block (17) for setting a target value of an amount of light generated by the light source upon receiving an analysis result (S2), and a controlled-amount determining block (21) for, upon receiving a target value (S3), determining a speed at which the light source is controlled, and for outputting a compensation parameter (S4) to the video signal processing section (7) while notifying the light source control section of a set luminance (S5). On receiving the set luminance value (S5), the light source control section (5) outputs a light amount control signal (S6) to the light source. Thereby, a technique which is capable of reducing power consumption in image display without causing any visual discomfort can be provided.

    摘要翻译: 图像显示器(A)包括诸如液晶面板的显示单元(1),诸如背光的光源(3),光源控制部分(5),用于输出的视频信号处理部分 根据输入信号(S1)控制显示单元的信号;以及用于控制包括光源控制和视频图像控制的整体的控制部分(11)。 控制部分(11)具有用于基于输入信号(S1)分析视频图像的视频图像分析块(15),用于设置光量的目标值的目标值设置块(17) 在接收到分析结果(S2)时由光源产生的受控量确定块(21),以及用于在接收到目标值(S3)时确定光源被控制的速度并且用于输出 补偿参数(S4)到视频信号处理部分(7),同时向光源控制部分通知设定亮度(S5)。 在接收到设定亮度值(S5)时,光源控制部(5)向光源输出光量控制信号(S6)。 因此,可以提供能够降低图像显示中的功耗而不引起任何视觉不适的技术。