公开(公告)号：US09046634B2

公开(公告)日：2015-06-02

申请号：US11763311

申请日：2007-06-14

申请人： Oleg Borisovich Shchekin ,  John Epler ,  Gregory W. Eng ,  Serge Bierhuizen ,  Gerard Harbers

发明人： Oleg Borisovich Shchekin ,  John Epler ,  Gregory W. Eng ,  Serge Bierhuizen ,  Gerard Harbers

IPC分类号： H01L33/00 ,  F21V8/00 ,  H01L33/40 ,  H01L33/46

CPC分类号： G02B6/0073 ,  H01L33/405 ,  H01L33/46 ,  H01L2224/0554 ,  H01L2224/05568 ,  H01L2224/05573 ,  H01L2224/05624 ,  H01L2224/05639 ,  H01L2224/13 ,  H01L2924/00014 ,  H01L2924/0002 ,  H01L2924/00 ,  H01L2924/013 ,  H01L2224/05599 ,  H01L2224/0555 ,  H01L2224/0556

摘要： Very thin flash modules for cameras are described that do not appear as a point source of light to the illuminated subject. Therefore, the flash is less objectionable to the subject. In one embodiment, the light emitting surface area is about 5 mm×10 mm. Low profile, side-emitting LEDs optically coupled to solid light guides enable the flash module to be thinner than 2 mm. The flash module may also be continuously energized for video recording. The module is particularly useful for cell phone cameras and other thin cameras.

摘要翻译： 描述了用于照相机的非常薄的闪光模块，其不会出现作为照明对象的点光源。 因此，闪光灯对该主题的反感较少。 在一个实施例中，发光表面积为约5mm×10mm。 光学耦合到实心光导体的低轮廓侧面发光LED使得闪光灯模块能够比2mm更薄。 闪光模块也可以连续通电用于视频记录。 该模块对于手机相机和其他薄型相机特别有用。

公开(公告)号：US20080308824A1

公开(公告)日：2008-12-18

申请号：US11763311

申请日：2007-06-14

申请人： Oleg Borisovich Shchekin ,  John Epler ,  Gregory W. Eng ,  Serge Bierhuizen ,  Gerard Harbers

发明人： Oleg Borisovich Shchekin ,  John Epler ,  Gregory W. Eng ,  Serge Bierhuizen ,  Gerard Harbers

IPC分类号： H01L33/00

CPC分类号： G02B6/0073 ,  H01L33/405 ,  H01L33/46 ,  H01L2224/0554 ,  H01L2224/05568 ,  H01L2224/05573 ,  H01L2224/05624 ,  H01L2224/05639 ,  H01L2224/13 ,  H01L2924/00014 ,  H01L2924/0002 ,  H01L2924/00 ,  H01L2924/013 ,  H01L2224/05599 ,  H01L2224/0555 ,  H01L2224/0556

摘要： Very thin flash modules for cameras are described that do not appear as a point source of light to the illuminated subject. Therefore, the flash is less objectionable to the subject. In one embodiment, the light emitting surface area is about 5 mm×10 mm. Low profile, side-emitting LEDs optically coupled to solid light guides enable the flash module to be thinner than 2 mm. The flash module may also be continuously energized for video recording. The module is particularly useful for cell phone cameras and other thin cameras.

摘要翻译： 描述了用于照相机的非常薄的闪光模块，其不会出现作为照明对象的点光源。 因此，闪光灯对该主题的反感较少。 在一个实施例中，发光表面积为约5mm×10mm。 光学耦合到实心光导体的低轮廓侧面发光LED使得闪光灯模块能够比2mm更薄。 闪光模块也可以连续通电用于视频记录。 该模块对于手机相机和其他薄型相机特别有用。

公开(公告)号：US20080315228A1

公开(公告)日：2008-12-25

申请号：US11954712

申请日：2007-12-12

申请人： Michael R. Krames ,  Gerd Mueller ,  Oleg Borisovich Shchekin ,  Mark Pugh ,  Gerard Harbers ,  John E. Epler ,  Serge Bierhuizen ,  Regina Mueller-Mach

发明人： Michael R. Krames ,  Gerd Mueller ,  Oleg Borisovich Shchekin ,  Mark Pugh ,  Gerard Harbers ,  John E. Epler ,  Serge Bierhuizen ,  Regina Mueller-Mach

IPC分类号： H01L33/00

CPC分类号： H01L33/50 ,  H01L33/385 ,  H01L33/405 ,  H01L33/46 ,  H01L33/60 ,  H01L2224/0554 ,  H01L2224/05568 ,  H01L2224/05573 ,  H01L2224/05624 ,  H01L2224/05639 ,  H01L2224/13 ,  H01L2924/00014 ,  H01L2924/013 ,  H01L2224/05599 ,  H01L2224/0555 ,  H01L2224/0556

摘要： Low profile, side-emitting LEDs are described that generate white light, where all light is emitted within a relatively narrow angle generally parallel to the surface of the light-generating active layer. The LEDs enable the creation of very thin backlights for backlighting an LCD. In one embodiment, the LED emits blue light and is a flip chip with the n and p electrodes on the same side of the LED. Separately from the LED, a transparent wafer has deposited on it a red and green phosphor layer. The phosphor color temperature emission is tested, and the color temperatures vs. positions along the wafer are mapped. A reflector is formed over the transparent wafer. The transparent wafer is singulated, and the phosphor/window dice are matched with the blue LEDs to achieve a target white light color temperature. The phosphor/window is then affixed to the LED.

摘要翻译： 描述了产生白光的低轮廓侧面发射LED，其中所有光在通常平行于发光有源层的表面的相对窄的角度内发射。 LED使得能够创建非常薄的背光用于背光LCD。 在一个实施例中，LED发射蓝光，并且是LED和LED的同一侧上的n和p电极的倒装芯片。 与LED分开，透明晶片在其上沉积有红色和绿色磷光体层。 测试荧光体色温发射，并且映射色温与晶片上的位置。 在透明晶片上形成反射器。 将透明晶片分离，并将荧光体/窗口骰子与蓝色LED匹配以实现目标白光色温。 然后将磷光体/窗口固定到LED。

公开(公告)号：US08080828B2

公开(公告)日：2011-12-20

申请号：US11954712

申请日：2007-12-12

申请人： Michael R. Krames ,  Gerd Mueller ,  Oleg Borisovich Shchekin ,  Mark Pugh ,  Gerard Harbers ,  John E. Epler ,  Serge Bierhuizen ,  Regina Mueller-Mach

发明人： Michael R. Krames ,  Gerd Mueller ,  Oleg Borisovich Shchekin ,  Mark Pugh ,  Gerard Harbers ,  John E. Epler ,  Serge Bierhuizen ,  Regina Mueller-Mach

IPC分类号： H01L33/00

CPC分类号： H01L33/50 ,  H01L33/385 ,  H01L33/405 ,  H01L33/46 ,  H01L33/60 ,  H01L2224/0554 ,  H01L2224/05568 ,  H01L2224/05573 ,  H01L2224/05624 ,  H01L2224/05639 ,  H01L2224/13 ,  H01L2924/00014 ,  H01L2924/013 ,  H01L2224/05599 ,  H01L2224/0555 ,  H01L2224/0556

摘要： Low profile, side-emitting LEDs are described that generate white light, where all light is emitted within a relatively narrow angle generally parallel to the surface of the light-generating active layer. The LEDs enable the creation of very thin backlights for backlighting an LCD. In one embodiment, the LED emits blue light and is a flip chip with the n and p electrodes on the same side of the LED. Separately from the LED, a transparent wafer has deposited on it a red and green phosphor layer. The phosphor color temperature emission is tested, and the color temperatures vs. positions along the wafer are mapped. A reflector is formed over the transparent wafer. The transparent wafer is singulated, and the phosphor/window dice are matched with the blue LEDs to achieve a target white light color temperature. The phosphor/window is then affixed to the LED.

摘要翻译： 描述了产生白光的低轮廓侧面发射LED，其中所有光在通常平行于发光有源层的表面的相对窄的角度内发射。 LED使得能够创建非常薄的背光用于背光LCD。 在一个实施例中，LED发射蓝光，并且是LED和LED的同一侧上的n和p电极的倒装芯片。 与LED分开，透明晶片在其上沉积有红色和绿色磷光体层。 测试荧光体色温发射，并且映射色温与晶片上的位置。 在透明晶片上形成反射器。 将透明晶片分离，并将荧光体/窗口骰子与蓝色LED匹配以实现目标白光色温。 然后将磷光体/窗口固定到LED。

公开(公告)号：US20090045420A1

公开(公告)日：2009-02-19

申请号：US11840114

申请日：2007-08-16

申请人： Gregory W. Eng ,  Serge Bierhuizen ,  Gerard Harbers

发明人： Gregory W. Eng ,  Serge Bierhuizen ,  Gerard Harbers

IPC分类号： H01L33/00 ,  H01L21/00

CPC分类号： G02B6/0073 ,  G02B6/0021 ,  G02B6/0083 ,  H01L33/58 ,  H01L2224/05568 ,  H01L2224/05573 ,  H01L2224/05624 ,  H01L2224/05639 ,  H01L2224/13 ,  H01L2924/00014

摘要： Individual side-emitting LEDs are separately positioned in a waveguide, or mounted together on a flexible mount then positioned together in a waveguide. As a result, the gap between each LED and the waveguide can be small, which may improve coupling of light from the LED into the waveguide. Since the LEDs are separately connected to the waveguide, or mounted on a flexible mount, stress to individual LEDs resulting from changes in the shape of the waveguide is reduced.

摘要翻译： 单独的侧发光LED分别定位在波导中，或者一起安装在柔性安装件上，然后将其定位在波导中。 结果，每个LED和波导之间的间隙可以很小，这可以改善来自LED到光波导的光的耦合。 由于LED分别连接到波导或安装在柔性安装座上，因此减小了由波导形状的变化引起的对各个LED的应力。

公开(公告)号：US07538359B2

公开(公告)日：2009-05-26

申请号：US11840114

申请日：2007-08-16

申请人： Gregory W. Eng ,  Serge Bierhuizen ,  Gerard Harbers ,  Kalil Kalantar

发明人： Gregory W. Eng ,  Serge Bierhuizen ,  Gerard Harbers ,  Kalil Kalantar

IPC分类号： H01L33/00

CPC分类号： G02B6/0073 ,  G02B6/0021 ,  G02B6/0083 ,  H01L33/58 ,  H01L2224/05568 ,  H01L2224/05573 ,  H01L2224/05624 ,  H01L2224/05639 ,  H01L2224/13 ,  H01L2924/00014

摘要： Individual side-emitting LEDs are separately positioned in a waveguide, or mounted together on a flexible mount then positioned together in a waveguide. As a result, the gap between each LED and the waveguide can be small, which may improve coupling of light from the LED into the waveguide. Since the LEDs are separately connected to the waveguide, or mounted on a flexible mount, stress to individual LEDs resulting from changes in the shape of the waveguide is reduced.

摘要翻译： 单独的侧发光LED分别定位在波导中，或者一起安装在柔性安装件上，然后将其定位在波导中。 结果，每个LED和波导之间的间隙可以很小，这可以改善来自LED到光波导的光的耦合。 由于LED分别连接到波导或安装在柔性安装座上，因此减小了由波导形状的变化引起的对各个LED的应力。

公开(公告)号：US07626210B2

公开(公告)日：2009-12-01

申请号：US11423419

申请日：2006-06-09

申请人： Oleg Borisovich Shchekin ,  Mark Pugh ,  Gerard Harbers ,  Michael R. Krames ,  John E. Epler

发明人： Oleg Borisovich Shchekin ,  Mark Pugh ,  Gerard Harbers ,  Michael R. Krames ,  John E. Epler

IPC分类号： H01L29/20

CPC分类号： H01L33/50 ,  H01L33/22 ,  H01L33/38 ,  H01L33/46 ,  H01L33/60 ,  H01L2224/13

摘要： Low profile, side-emitting LEDs are described, where all light is efficiently emitted within a relatively narrow angle generally parallel to the surface of the light-generating active layer. The LEDs enable the creation of very thin backlights for backlighting an LCD. In one embodiment, the LED is a flip chip with the n and p electrodes on the same side of the LED, and the LED is mounted electrode-side down on a submount. A reflector is provided on the top surface of the LED so that light impinging on the reflector is reflected back toward the active layer and eventually exits through a side surface of the LED. A waveguide layer and/or one or more phosphors layers are deposed between the semiconductor layers and the reflector for increasing the side emission area for increased efficiency. Side-emitting LEDs with a thickness of between 0.2-0.4 mm can be created.

摘要翻译： 描述了低侧面发光LED，其中所有光在与发光有源层的表面大致平行的相对窄的角度内被有效地发射。 LED使得能够创建非常薄的背光用于背光LCD。 在一个实施例中，LED是倒装芯片，其中n和p电极位于LED的同一侧，并且LED电极侧朝下安装在底座上。 在LED的顶表面上提供反射器，使得入射在反射器上的光被反射回有源层，最终通过LED的侧表面离开。 在半导体层和反射器之间布置波导层和/或一个或多个磷光体层以增加侧面发射面积以提高效率。 可以产生厚度在0.2-0.4mm之间的侧面发射LED。

公开(公告)号：US20070284600A1

公开(公告)日：2007-12-13

申请号：US11423419

申请日：2006-06-09

申请人： Oleg Borisovich Shchekin ,  Mark Pugh ,  Gerard Harbers ,  Michael R. Krames ,  John E. Epler

发明人： Oleg Borisovich Shchekin ,  Mark Pugh ,  Gerard Harbers ,  Michael R. Krames ,  John E. Epler

IPC分类号： H01L33/00

CPC分类号： H01L33/50 ,  H01L33/22 ,  H01L33/38 ,  H01L33/46 ,  H01L33/60 ,  H01L2224/13

摘要： Low profile, side-emitting LEDs are described, where all light is efficiently emitted within a relatively narrow angle generally parallel to the surface of the light-generating active layer. The LEDs enable the creation of very thin backlights for backlighting an LCD. In one embodiment, the LED is a flip chip with the n and p electrodes on the same side of the LED, and the LED is mounted electrode-side down on a submount. A reflector is provided on the top surface of the LED so that light impinging on the reflector is reflected back toward the active layer and eventually exits through a side surface of the LED. A waveguide layer and/or one or more phosphors layers are deposed between the semiconductor layers and the reflector for increasing the side emission area for increased efficiency. Side-emitting LEDs with a thickness of between 0.2-0.4 mm can be created.

摘要翻译： 描述了低侧面发光LED，其中所有光在与发光有源层的表面大致平行的相对窄的角度内被有效地发射。 LED使得能够创建非常薄的背光用于背光LCD。 在一个实施例中，LED是倒装芯片，其中n和p电极位于LED的同一侧，并且LED电极侧朝下安装在底座上。 在LED的顶表面上提供反射器，使得入射在反射器上的光被反射回有源层，最终通过LED的侧表面离开。 在半导体层和反射器之间布置波导层和/或一个或多个磷光体层以增加侧面发射面积以提高效率。 可以产生厚度在0.2-0.4mm之间的侧面发射LED。

公开(公告)号：US20070139352A1

公开(公告)日：2007-06-21

申请号：US11312679

申请日：2005-12-19

申请人： Mark Pugh ,  Gerard Harbers ,  Serge Bierhuizen

发明人： Mark Pugh ,  Gerard Harbers ,  Serge Bierhuizen

IPC分类号： G09G3/36

CPC分类号： G09G3/3413 ,  G02F1/133514 ,  G02F1/133603 ,  G02F2203/34 ,  G09G2300/0452 ,  G09G2310/0235

摘要： In an LCD, a backlight having red, green, and blue LEDs is controlled to generate monochromatic light (e,g., blue) during a portion of a cycle, such as an image frame cycle. During another portion of the cycle, all the LEDs are illuminated to create white light. The color filter in the LCD panel contains, for each white pixel, a first color (e.g., red) subpixel filter, a second color (e.g., green) subpixel filter, and a clear subpixel area for passing white light and the monochromatic. The liquid crystal layer shutters are controlled to pass from 0-100% of the light for their associated subpixels to create a color image. With proper control of the shutters, any desired color of each white pixel can be achieved during the cycle. By converting one color filter to a clear area, the transmission efficiency of the display is greatly increased.

摘要翻译： 在LCD中，控制具有红色，绿色和蓝色LED的背光，以在诸如图像帧周期的周期的一部分期间产生单色光（例如蓝色）。 在循环的另一部分期间，所有的LED都被照亮以产生白光。 LCD面板中的滤色器对于每个白色像素包含第一颜色（例如，红色）子像素滤色器，第二颜色（例如，绿色）子像素滤色器和用于通过白光和单色的透明子像素区域。 控制液晶层百叶窗从相关子像素的0-100％的光通过，以产生彩色图像。 通过对百叶窗的适当控制，可以在该周期期间实现每个白色像素的任何期望的颜色。 通过将一个滤色器转换为透明区域，显示器的传输效率大大提高。

公开(公告)号：US07682850B2

公开(公告)日：2010-03-23

申请号：US11378812

申请日：2006-03-17

申请人： Gerard Harbers ,  Serge Bierhuizen ,  Mark Pugh

发明人： Gerard Harbers ,  Serge Bierhuizen ,  Mark Pugh

IPC分类号： H01L21/00

CPC分类号： H01L33/505 ,  C09K11/7774 ,  G02F1/133603 ,  G02F2001/133614 ,  H01L33/504 ,  H01L2224/16225 ,  H01L2933/0041 ,  Y02B20/181

摘要： A white light LED for use in backlighting or otherwise illuminating an LCD is described where the white light LED comprises a blue LED over which is affixed a preformed red phosphor platelet and a preformed green phosphor platelet. In one embodiment, to form a platelet, a controlled amount of phosphor powder is placed in a mold and heated under pressure to sinter the grains together. The platelet can be made very smooth on all surfaces. A UV LED may also be used in conjunction with red, green, and blue phosphor plates. The LED dies vary in color and brightness and are binned in accordance with their light output characteristics. Phosphor plates with different characteristics are matched to the binned LEDs to create white light LEDs with a consistent white point for use in backlights for liquid crystal displays.

摘要翻译： 描述了用于背光或以其他方式照明LCD的白光LED，其中白光LED包括蓝色LED，其上附着预先形成的红色荧光体片和预制的绿色荧光体片。 在一个实施方案中，为了形成血小板，将受控量的荧光体粉末放置在模具中并在压力下加热以将颗粒烧结在一起。 血小板可以在所有表​​面上非常光滑。 UV LED也可以与红色，绿色和蓝色荧光体板一起使用。 LED管芯的颜色和亮度不同，并根据其光输出特性进行分样。 具有不同特性的荧光板与分箱LED匹配，以创建白光LED，并具有用于液晶显示器背光源的一致白点。