公开(公告)号：US20080013315A1

公开(公告)日：2008-01-17

申请号：US11860391

申请日：2007-09-24

申请人： Hyung Suk KIM ,  Jung Kyu Park ,  Ho-Sik Ahn ,  Young June Jeong ,  Young Sam Park ,  Hun Joo Hahm ,  Bum Jin Kim

发明人： Hyung Suk KIM ,  Jung Kyu Park ,  Ho-Sik Ahn ,  Young June Jeong ,  Young Sam Park ,  Hun Joo Hahm ,  Bum Jin Kim

IPC分类号： F21V13/04

CPC分类号： G02B6/0021 ,  G02B6/0038 ,  G02B6/0041 ,  G02F1/133603

摘要： A direct-illumination backlight apparatus using LEDs includes a flat reflective plate, an LED light source, a transparent plate, a scattering pattern, and a light guide. The light guide serves to introduce a partial light from an LED light source at such an angle that the partial light is trapped inside the transparent plate, and the scattering pattern serves to scatter the trapped light beam at a position directly above the LED light source so that the scattered light beam escapes out of the transparent plate toward an LCD panel.

摘要翻译： 使用LED的直接照明背光装置包括平面反射板，LED光源，透明板，散射图案和导光体。 该光导用于从LED光源引入部分光，使得部分光被捕获在透明板的内部，散射图用于将捕获的光束分散在LED光源正上方的位置，从而 散射的光束从透明板向LCD面板逸出。

公开(公告)号：US08500306B2

公开(公告)日：2013-08-06

申请号：US13019523

申请日：2011-02-02

申请人： Chul Hee Yoo ,  Ho Sik Ahn

发明人： Chul Hee Yoo ,  Ho Sik Ahn

IPC分类号： F21V29/00

CPC分类号： F21V29/70 ,  G02F1/133603 ,  H05K1/0206 ,  H05K1/189 ,  H05K3/0061 ,  H05K3/4069 ,  H05K2201/0209 ,  H05K2201/09072 ,  H05K2201/10106

摘要： A backlight unit of the invention is reduced in thickness, weight and manufacturing costs but improved in heat releasing efficiency. In the backlight unit, a flexible printed circuit board has at least one through hole perforated therein. An LED package is disposed on a top portion of the flexible printed circuit board corresponding to the through hole. The backlight unit of the invention employs the flexible printed circuit board in place of a metal printed circuit board as a means to conduct current to the LED package. This produces a slimmer and lighter backlight unit and also saves manufacturing costs. In addition, the LED package is directly bonded onto a bottom plate by a heat conducting adhesive, thereby ensuring heat generated from the LED package to be released more quickly.

摘要翻译： 本发明的背光单元的厚度，重量和制造成本降低，但散热效率提高。 在背光单元中，柔性印刷电路板具有穿孔的至少一个通孔。 LED封装设置在与通孔对应的柔性印刷电路板的顶部上。 本发明的背光单元采用柔性印刷电路板代替金属印刷电路板作为将电流传导到LED封装的手段。 这产生了更薄和更轻的背光单元，并且还节省制造成本。 此外，LED封装通过导热粘合剂直接接合到底板上，从而确保从LED封装产生的热量更快地释放。

公开(公告)号：US20070159449A1

公开(公告)日：2007-07-12

申请号：US11647403

申请日：2006-12-29

申请人： Chul Hee Yoo ,  Ho Sik Ahn

发明人： Chul Hee Yoo ,  Ho Sik Ahn

IPC分类号： G09G3/36

CPC分类号： G09G3/3406 ,  G09G2300/023 ,  G09G2320/066

摘要： A dimming structure for an image display device further includes a contrast panel for altering contrast differences in a portion around an outputted image to achieve dimming effects on an image smaller than a light emitting lamp. In the dimming structure, a backlight unit has a plurality of light sources disposed therein. A display panel displays an image while the backlight unit is disposed to light the display panel. A contrast panel is disposed between the backlight unit and the display panel. The contrast panel has a light emitting window formed in a portion thereof corresponding to the image of the display panel to transmit light emitted from the backlight unit therethrough. The dimming structure assures uniform dimming effects on the portion around the image despite use of a light source bigger than the image to be outputted.

摘要翻译： 用于图像显示装置的调光结构还包括对比度面板，用于改变输出图像周围部分的对比度差异，以实现对小于发光灯的图像的调光效果。 在调光结构中，背光单元具有设置在其中的多个光源。 显示面板在布置背光单元以点亮显示面板的同时显示图像。 对比度面板设置在背光单元和显示面板之间。 对比度面板具有形成在其对应于显示面板的图像的部分中的发光窗口，以透射从背光单元发射的光。 调光结构确保了对图像周围部分的均匀调光效果，尽管使用大于要输出的图像的光源。

公开(公告)号：US20070139929A1

公开(公告)日：2007-06-21

申请号：US11600059

申请日：2006-11-16

申请人： Chul Hee Yoo ,  Ho Sik Ahn

发明人： Chul Hee Yoo ,  Ho Sik Ahn

IPC分类号： F21V29/00

CPC分类号： F21V29/70 ,  G02F1/133603 ,  H05K1/0206 ,  H05K1/189 ,  H05K3/0061 ,  H05K3/4069 ,  H05K2201/0209 ,  H05K2201/09072 ,  H05K2201/10106

摘要： A backlight unit of the invention is reduced in thickness, weight and manufacturing costs but improved in heat releasing efficiency. In the backlight unit, a flexible printed circuit board has at least one through hole perforated therein. An LED package is disposed on a top portion of the flexible printed circuit board corresponding to the through hole. The backlight unit of the invention employs the flexible printed circuit board in place of a metal printed circuit board as a means to conduct current to the LED package. This produces a slimmer and lighter backlight unit and also saves manufacturing costs. In addition, the LED package is directly bonded onto a bottom plate by a heat conducting adhesive, thereby ensuring heat generated from the LED package to be released more quickly.

摘要翻译： 本发明的背光单元的厚度，重量和制造成本降低，但散热效率提高。 在背光单元中，柔性印刷电路板具有穿孔的至少一个通孔。 LED封装设置在与通孔对应的柔性印刷电路板的顶部上。 本发明的背光单元采用柔性印刷电路板代替金属印刷电路板作为将电流传导到LED封装的手段。 这产生了更薄和更轻的背光单元，并且还节省制造成本。 此外，LED封装通过导热粘合剂直接接合到底板上，从而确保从LED封装产生的热量更快地释放。

公开(公告)号：US07221416B2

公开(公告)日：2007-05-22

申请号：US10997895

申请日：2004-11-29

申请人： Hun Joo Hahm ,  Jung Kyu Park ,  Young June Jeong ,  Young Sam Park ,  Hyung Suk Kim ,  Ho Sik Ahn

发明人： Hun Joo Hahm ,  Jung Kyu Park ,  Young June Jeong ,  Young Sam Park ,  Hyung Suk Kim ,  Ho Sik Ahn

IPC分类号： G02F1/1335

CPC分类号： G02B6/0028 ,  G02B5/021 ,  G02B5/0284 ,  G02B6/0018 ,  G02B6/003 ,  G02B6/0038 ,  G02B6/0068 ,  G02B6/0073

摘要： An LCD backlight apparatus includes a light guide plate placed under an LCD panel of the LCD to guide light to the LCD panel. The light guide plate has an even upper surface and a scattering pattern formed in a bottom surface. A plurality of monochromatic light sources are placed in line at a side of the light guide plate to radiate light along the plane direction of the light guide plate between the upper and bottom surfaces of the light guide plate. The light sources are adapted to radiate light beams at a predetermined beam angle so that the light beams reach the scattering pattern only after having propagated a predetermined reference length necessary for forming white light when mixed together. The LCD backlight apparatus can reduce the Bezel width without increasing the thickness of the LCD.

摘要翻译： LCD背光装置包括一个导光板，该导光板放置在LCD的LCD面板的下方，以将光引向LCD面板。 导光板具有均匀的上表面和形成在底面中的散射图案。 多个单色光源在导光板的一侧成直线放置，以在导光板的上表面和底表面之间沿着导光板的平面方向辐射光。 光源适于以预定的光束角辐射光束，使得光束仅在已经传播混合在一起形成白光所需的预定参考长度之后才到达散射图案。 LCD背光装置可以在不增加LCD的厚度的情况下减少边框宽度。

公开(公告)号：US07118236B2

公开(公告)日：2006-10-10

申请号：US10953816

申请日：2004-09-30

申请人： Hun Joo Hahm ,  Jung Kyu Park ,  Young June Jeong ,  Young Sam Park ,  Hyung Suk Kim ,  Ho Sik Ahn

发明人： Hun Joo Hahm ,  Jung Kyu Park ,  Young June Jeong ,  Young Sam Park ,  Hyung Suk Kim ,  Ho Sik Ahn

IPC分类号： G01D11/28 ,  F21V5/00

CPC分类号： H01L33/58 ,  H01L33/54 ,  H01L33/60

摘要： The present invention relates to an LED lens, in which a planar bottom has a pair of halves symmetrically connected with each other about a reference line and narrowed in the vicinity of the reference line. A pair of substantially semicircular reflecting surfaces are extended from both edges of the bottom connected with both ends of the reference line. A radiating surface is connected with remaining edges of the bottom and semicircular edges of the reflecting surfaces. The reflecting surfaces reflect light beams are introduced from the LED chip through the bottom toward the radiating surface. The radiating surface radiates the light beams to the outside when the light beams are introduced to the radiating surface through reflection from the reflecting surfaces and directly through the bottom, so that the light beams are radiated to the outside in a predetermined beam angle.