The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 27, 2018
Filed:
Jan. 15, 2016
Electronics and Telecommunications Research Institute, Daejeon, KR;
Chunwon Byun, Daejeon, KR;
Jae-Eun Pi, Daejeon, KR;
Yong Hae Kim, Daejeon, KR;
Hakyun Lee, Seoul, KR;
Chi-Sun Hwang, Daejeon, KR;
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Daejeon, KR;
MVTECH, Seoul, KR;
Abstract
A holographic display apparatus includes a light source unit, a spatial light modulator, and a spatial light modulator control circuit for controlling the spatial light modulator, the spatial light modulator control circuit including a data driving circuit for providing a data voltage to a signal line, a demultiplexer circuit which includes a plurality of switching elements connected to the signal line and sequentially turned on, and transfers the data voltage to a transfer line through a turned-on switching element among the switching elements, and a first element connected between the transfer line and a data line, passing a current flowing from the transfer line to the data line, and blocking a current flowing from the data line to the transfer line.