ITE Technical Report
Online ISSN : 2424-1970
Print ISSN : 1342-6893
ISSN-L : 1342-6893
33.1
Session ID : MMS2009-7/CE2009-7
Conference information
A Study of 2D Laser Scanning Actuator for LCD Backlight
Satoru OKAGAKI, Eiji NIIKURA, Eiji YOKOYAMA, Atsushi MICHIMORI, Hiroaki SUGIURA
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Keywords: laser, LCD, actuator, backlight
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Abstract

We have developed the 2D laser scanning actuator for LCD (Liquid Crystal Display) backlight. The LCD system adopts laser for backlight and scanning optical spot on the LCD panel in two dimensions by the actuator. The 2D scanning actuator is composed of the polygon mirror (for the horizontal direction scanning of the LCD panel) and the galvano mirror (for the vertical direction scanning) which is driven by motors and the rotation angle is controlled by closed-loop control in high accuracy.

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© 2009 The Institute of Image Information and Television Engineers
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