Invention Grant
- Patent Title: Luminous flux control member light-emitting unit, and display device
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Application No.: US14598310Application Date: 2015-01-16
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Publication No.: US09703130B2Publication Date: 2017-07-11
- Inventor: Ji Young Jung , Chang Hyuck Lee
- Applicant: LG INNOTEK CO., LTD.
- Applicant Address: KR Seoul
- Assignee: LG Innotek Co., Ltd.
- Current Assignee: LG Innotek Co., Ltd.
- Current Assignee Address: KR Seoul
- Agency: Ked & Associates LLP
- Priority: KR10-2014-0006274 20140117
- Main IPC: G02F1/1335
- IPC: G02F1/1335 ; G02F1/133 ; G02B19/00

Abstract:
A luminous flux control member may include an incident surface, a first optical surface, and a second optical surface. The first optical surface may be separated from the incident surface in a direction of an optical axis and includes a concave portion recessed toward the incident surface. The second optical surface may form a side surface of the luminous flux control member. The first optical surface may include a connection portion that connects the concave portion to the second optical surface. In at least one embodiment, the connection portion may have a width ranging from 1 μm to 100 μm.
Public/Granted literature
- US20150301379A1 LUMINOUS FLUX CONTROL MEMBER LIGHT-EMITTING UNIT, AND DISPLAY DEVICE Public/Granted day:2015-10-22
Information query
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