3. DLP Projection TV
DMD (Digital Micromirror Device) :
Optical Layout -
DMD Panel
structure that MEMS structure is stacked on top of the CMOS Memory
-
12
+1
2
[DMD Pixel Exploded View]
Mirror
Yoke
Landing TiP
Mirror
Address
Electrode
Torsion
Hinge
(Mirror
rotation)
[Layers
]
Mirror
Yoke
- Each Micromirror moves left and right by 12 degrees
- A digitalized video signal saved in a video memory is
t
f
d t
ti
t f
h Mi
i
(Mirror
fixation)
Bias-
Reset
Via 2
Contact
To CMOS
Landing
Site
Yoke
Address
Electrode
Yoke
&
Hinge
Metal-
3
transferred to a operating part of each Micromirror.
- A minimum 480 thousands to maximum 1.9 millions
of Micromirrors, extremely tiny, are installed in the
DMD chip.
Reset
Bus
Site
CMOS
Memor
y
p
- Micromirror is in charge of a pixel.
Copyright © 2012 LG Electronics Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only
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