Invention Grant
- Patent Title: Active diffuser for reducing speckle and laser display device having active diffuser
-
Application No.: US14168476Application Date: 2014-01-30
-
Publication No.: US09638928B2Publication Date: 2017-05-02
- Inventor: Sun-Tak Park , Bong-Je Park , Ki-Uk Kyung , Sung-Ryul Yun , Sae-Kwang Nam
- Applicant: Electronics and Telecommunications Research Institute
- Applicant Address: KR Daejeon
- Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUE
- Current Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUE
- Current Assignee Address: KR Daejeon
- Agency: Rabin & Berdo, P.C.
- Priority: KR10-2013-0094000 20130808
- Main IPC: G02B27/48
- IPC: G02B27/48 ; G02B5/02 ; G02B26/06 ; G02F1/01 ; G02B3/00
Abstract:
An active diffuser for reducing a speckle in accordance with an embodiment of the present invention includes: an electroactive polymer film having at least one or more scattering patterns; a first transparent electrode coated on one surface of the electroactive polymer film; and a second transparent electrode coated on the other surface of the electroactive polymer film, and a shape of the scattering pattern of the electroactive polymer film is varied by voltage applied through the first transparent electrode and the second transparent electrode.
Public/Granted literature
- US20150043079A1 ACTIVE DIFFUSER FOR REDUCING SPECKLE AND LASER DISPLAY DEVICE HAVING ACTIVE DIFFUSER Public/Granted day:2015-02-12
Information query
