| US 7,517,096 B2 | ||
| Projection display system with micro-mirror light modulator | ||
| Chan Young Park, Gyeonggi-do (Korea, Republic of) | ||
| Assigned to LG Electronics Inc., Seoul (Korea, Republic of) | ||
| Filed on Sep. 30, 2005, as Appl. No. 11/241,180. | ||
| Claims priority of application No. 10-2004-0079445 (KR), filed on Oct. 06, 2004. | ||
| Prior Publication US 2006/0072079 A1, Apr. 06, 2006 | ||
| Int. Cl. G03B 21/26 (2006.01); G03B 21/28 (2006.01); H04N 5/74 (2006.01); G02B 26/08 (2006.01); G02F 1/29 (2006.01) | ||
| U.S. Cl. 353—99 [353/94; 348/771; 359/197; 359/226; 359/292; 359/298; 359/202] | 19 Claims |
| 1. A projection display system using a micro-mirror light modulator, comprising:
a light source;
a linear light source illumination system that transforms a light emitted from the light source into a thin linear light;
a micro-mirror light modulator that selectively diverts the direction of the thin linear light that is incident thereon to
create reflected light, wherein the micro-mirror light modulator is configured to form a linear image that corresponds to
one line of pixels on the projection display system;
a light transmitting layer arranged to receive the reflected light from the micro-mirror light modulator and selectively transmit
or filter out the reflected light, wherein the light transmitting layer filters out a first portion of the reflected light
from the micro-mirror light modulator that has a first angle of reflection and transmits a second portion of the reflected
light from the micro-mirror light modulator that has a second angle of reflection, wherein the thin linear light selectively
diverted by the micro-mirror light modulator is received by the micro-mirror light modulator without being transmitted through
the light transmitting layer;
a condenser lens that focuses the light transmitted by the light transmitting layer; and
a scanner that scans the focused light such that the light forms a projected image,
wherein the micro-mirror light modulator comprises:
an electrode to which a voltacie can be applied;
a reflecting electrode that is configured to reflect incident light and to deflect toward the electrode when the voltage is
applied;
a support structure that supports both the reflecting electrode and the electrode, and acts as a shaft of the reflecting electrode
that is movable; and
a substrate acts as a fixed base on which the support structure and the electrode are formed.
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