公开(公告)号：US20170090108A1

公开(公告)日：2017-03-30

申请号：US15282008

申请日：2016-09-30

Applicant: Minebea Co., Ltd.

Inventor： Makoto FURUTA ,  Keito AZUMI ,  Satoshi SUGAWARA

IPC: F21V8/00 ,  F21V19/00

CPC classification number: G02B6/0083 ,  F21V19/0025 ,  F21Y2105/00 ,  F21Y2115/10 ,  G02B6/0091 ,  H05K1/111 ,  H05K1/189 ,  H05K3/3442 ,  H05K2201/09381 ,  H05K2201/09918 ,  H05K2201/10106 ,  H05K2201/10454 ,  H05K2203/048 ,  Y02P70/611 ,  Y02P70/613

Abstract: A planar illumination device according to an embodiment includes a light source, a circuit board and a pair of routing portions. The light source has a light emitting surface that emits light. The light source is mounted on the circuit board. A pair of land portions is provided on the circuit board, serves as a region where solder for electrically connecting respectively a pair of electrodes of the light source thereto is applied, is formed of an electrically conductive material, and corresponds to the electrodes. The pair of routing portions extends from each of the pair of land portions to at least a cover lay that protects a wiring on the circuit board and is formed of an electrically conductive material integrated with the land portions. First missing portions, being a region where the electrically conductive material is missing, are provided in each of the pair of routing portions.

公开(公告)号：US20160150640A1

公开(公告)日：2016-05-26

申请号：US14944949

申请日：2015-11-18

Applicant: MINEBEA CO., LTD.

Inventor： Satoshi SUGAWARA

IPC: H05K1/02 ,  F21V8/00

CPC classification number: H05K1/0274 ,  G02B6/0073 ,  G02B6/0083 ,  G02B6/009 ,  H05K1/189 ,  H05K2201/0112 ,  H05K2201/10106

Abstract: A planar illumination device includes: a light guide plate; a point light source disposed to face a light incident surface of the light guide plate; and a circuit substrate on which the point light source is mounted. The circuit substrate includes: a base film; a first conductive layer and a first coverlay film stacked in sequence on a first surface of the base film, the first conductive layer including a pair of lands to which a pair of electrode terminals of the point light source are electrically connected; and a second conductive layer and a second coverlay film stacked in sequence on a second surface of the base film the second coverlay film including a light absorber. The second coverlay film is exposed between the lands and in front of a light emitting surface of the point light source in a light emitting direction.

Abstract translation: 平面照明装置包括：导光板; 点光源，被配置为面对所述导光板的光入射面; 以及其上安装有点光源的电路基板。 电路基板包括：基膜; 第一导电层和第一覆盖膜依次层叠在所述基膜的第一表面上，所述第一导电层包括一对引线，所述一对焊盘与所述点光源的一对电极端子电连接; 以及第二导电层和第二覆盖层膜，其顺序地层叠在所述基膜的第二表面上，所述第二覆盖膜包括光吸收体。 第二覆盖膜在发光方向上在焊盘之间和点光源的发光表面之前露出。