公开(公告)号：US20040170011A1

公开(公告)日：2004-09-02

申请号：US10700050

申请日：2003-11-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jin-hwan Kim ,  Hwan-young Choi ,  Moon-gyu Lee ,  Su-mi Lee ,  Jin-seung Choi ,  Jee-hong Min

IPC: F21V007/04

CPC classification number: G02B6/0016 ,  G02B6/0028 ,  G02B6/0038 ,  G02F1/133615

Abstract: A backlight unit is provided including a light guide panel (LGP), a point light source emitting light at an edge of the LGP; and a refraction member being positioned between the point light source and the LGP and refracting the light emitted from the point light source toward the optical axis of the point light source in order to reduce the azimuth angle of the light that is incident upon the LGP. The refraction member includes a prism array in which a V-shaped prism pattern is repeatedly arrayed, the apex of the prism pattern facing the edge of the LGP, and a transparent portion that prevents the light from being totally reflected by the prism pattern in a region along an optical axis of the light source.

Abstract translation: 提供了一种背光单元，包括导光板（LGP），在LGP边缘发射光的点光源; 以及位于点光源和LGP之间的折射构件，并且折射从点光源发射的光朝向点光源的光轴，以便减小入射在LGP上的光的方位角。 折射构件包括棱镜阵列，其中重复排列V形棱镜图案，棱镜图案的顶点面向LGP的边缘，以及透明部分，其防止光被棱镜图案全面反射 区域沿着光源的光轴。

公开(公告)号：US20040130880A1

公开(公告)日：2004-07-08

申请号：US10454548

申请日：2003-06-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jee-hong Min ,  Hwan-young Choi ,  Moon-gyu Lee ,  Su-mi Lee ,  Jin-hwan Kim ,  Jin-seung Choi

IPC: F21V008/00

CPC classification number: G02B27/0972 ,  G02B6/0016 ,  G02B6/003

Abstract: A backlight unit includes a light guide panel where a holographic pattern is formed. A point light source emits light to an edge of the light guide panel. A refractive member is provided between the point light source and the light guide panel and reduces an azimuth angle of light incident on the light guide panel. The refractive member includes, from an optical axis of the point light source, a light transmission zone transmitting light as it is, a blaze zone where a blaze pattern having a saw-toothed shape in which one surface near the optical axis and substantially parallel to the optical axis is formed, and a prism zone where a triangular prism pattern is formed. The backlight unit may further include a diffusive member diffusing light emitted from the point light source to be incident on the refractive member.

Abstract translation: 背光单元包括形成全息图案的导光板。 点光源将光发射到导光板的边缘。 在点光源和导光板之间提供折射构件，并且减小入射在导光板上的光的方位角。 折射构件包括从点光源的光轴开始传播光的透光区域，其中具有锯齿形状的火焰图案，其中一个靠近光轴的表面并且基本上平行于 形成光轴，形成三角棱镜图案的棱镜区域。 背光单元还可以包括漫射构件，其漫射从点光源发射的入射到折射构件上的光。

公开(公告)号：US20030235047A1

公开(公告)日：2003-12-25

申请号：US10259842

申请日：2002-09-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jin-Seung Choi ,  Hwan-Young Choi ,  Jee-hong Min ,  Su-mi Lee ,  Jin-hwan Kim ,  Moon-gyu Lee

IPC: G01D011/28

CPC classification number: G02B6/002 ,  G02B6/0068

Abstract: An illumination apparatus for planar display devices, including an optical element for making light travel parallel to an optical axis, is provided. The illumination apparatus includes a dot light source for radiating light, and a light guide plate having the optical element. The optical element is composed of a first refraction facet, which is adjacent to the dot light source and increases the emission angle of the light, and a second refraction facet, which is isolated a predetermined distance from the first refraction facet while facing the first refraction facet and reduces the emission angle of the light. In this structure, the light travels parallel to the optical axis In the illumination apparatus, the emission angle of incident light is reduced, preferably, the light travels parallel to the optical axis. Therefore, areas not reached by light, between adjacent dot light sources, are eliminated, and light is uniformly incident upon a hologram so that the luminance and intensity of light emitted from the light guide plate are uniformly distributed

Abstract translation: 提供了一种用于平面显示装置的照明装置，包括用于使光行进平行于光轴的光学元件。 照明装置包括用于照射光的点光源和具有光学元件的导光板。 光学元件由与点光源相邻的第一折射面和增加光的发射角的第一折射面和与第一折射面隔开预定距离而面向第一折射的第二折射面 并减少光的发射角。 在该结构中，光平行于光轴行进。在照明装置中，入射光的发射角度减小，优选光平行于光轴行进。 因此，消除了相邻点光源之间未被光照射的区域，并且光均匀地入射到全息图上，使得从导光板发射的光的亮度和强度均匀分布