Invention Grant
- Patent Title: Light diffusing member and method of manufacturing the same, and display device
- Patent Title (中): 光扩散部件及其制造方法以及显示装置
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Application No.: US13993821Application Date: 2011-12-08
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Publication No.: US08926157B2Publication Date: 2015-01-06
- Inventor: Tokiyoshi Umeda , Hidefumi Yoshida , Emi Yamamoto , Toru Kanno , Tsuyoshi Maeda , Tsuyoshi Kamada
- Applicant: Tokiyoshi Umeda , Hidefumi Yoshida , Emi Yamamoto , Toru Kanno , Tsuyoshi Maeda , Tsuyoshi Kamada
- Applicant Address: JP Osaka
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Osaka
- Agency: Keating & Bennett, LLP
- Priority: JP2010-286886 20101224
- International Application: PCT/JP2011/078423 WO 20111208
- International Announcement: WO2012/086424 WO 20120628
- Main IPC: F21V7/04
- IPC: F21V7/04 ; G02B5/02 ; G02F1/1335

Abstract:
A light diffusing member includes a base material having a light transmitting property; a plurality of light blocking sections that are formed in a scattered manner at one surface of the base material; and a light transmissive material layer that is formed at the one surface of the base material. A thickness of the light transmissive material layer is larger than a thickness of each light blocking section. The light transmissive material layer has hollow portions in regions where the light blocking sections are formed. Each hollow portion has a shape in which a cross-section area when each hollow portion is cut at a plane that is parallel to the one surface of the base material is large on a side of the corresponding light blocking section and becomes gradually smaller with increasing distance from the corresponding light blocking section. A portion of the light transmissive material layer other than where the hollow portions are formed is a light transmitting section.
Public/Granted literature
- US20130265774A1 LIGHT DIFFUSING MEMBER AND METHOD OF MANUFACTURING THE SAME, AND DISPLAY DEVICE Public/Granted day:2013-10-10
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