Page 1
Description
The DS001AKA is a single-panel liquid crystal
optical engine for use in rear projectors, capable of
full-color displays without color filters (CF).
This engine provides a wide aspect ratio of 16:9,
such as those represented in HD.
The side-black function also allows an aspect ratio
of 4:3 in the NTSC/PAL mode. Up/down and/or right/
left inversion functions accommodate various mounting
methods.
Short projection distances are made possible
through the adoption of ultra-wide angle lenses. In
addition, a projection lens floating mechanism
delivers 30" to 60" projected images with minimal
image distortion.
A high intensity discharge (HID) lamp ensures high
luminance and low power consumption.
Features
• The number of active dots: 768,000
• Horizontal resolution: 600 TV lines
• NTSC/NTSC-WIDE/HD (band: 20MHz) mode selectable (PAL/PAL-WIDE mode also available through
conversion of scanned dot numbers by an external IC)
• Up/down and/or right/left inverse display function
• Side-black function
• 16:9 and 4:3 aspect-ratio switching function
• Full-color display with CF-less projection system
• High luminouce flux: normally-white 120 ANSIlm (typ.)
• Ultra-wide angle lenses for short projection distances (531mm/37", at 4.5% overscanning)
• Image distortion correction floating mechanism to support 30" to 60"
• Relative illumination: 70% or above
• Uses HID lamp (100W)
Engine Configuration
• HID lamp
• Lamp driver (DC 300V input)
• High-efficiency illumination system employing glass rods
• Separate RGB illumination systems using dichroic mirrors (DM)
• LCD panel mounting mechanism, adjustable along XYθ axes
• LCD panel (LCX011AM)
Dots
16:9 display: 1599.5 (H) × 480 (V) = 767,760 dots
4:3 display: 1199.5 (H) × 480 (V) = 575,760 dots
• Wide fixed focal length lenses for enlarged projection of LCD
• Silent fans for cooling
Applications
Liquid crystal rear projection TV/monitor
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DS001AKA
E97422A94-PS
Single-Panel Liquid Crystal Optical Engine for Rear Projectors
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
Page 2
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DS001AKA
Explanation of Basic Operation
• Apply DC 300V to the lamp driver.
• Light emitted by the lamp is focused by an elliptical reflector on a glass rod integrator, and is rendered
homogeneous at the output end of the integrator.
• Light output from the integrator passes through a relay lens and collimator lens to become a collimated ray,
which is color-separated by a group of dichroic mirrors.
• The color-separated rays are focused on the respective RGB dots by microlenses mounted on the
LCX011AM, and distributed.
• After transmitting the panel, the light is enlarged and projected onto a screen by a projection lens.
For details of the LCD panel operation, please refer to the LCX011AM specifications.
Block Diagram
HID
Lamp
Glass Rod
Integrator
UV/IR Cut
Filter
Relay Lens
Pre-Polarizer
B-DM G-DM
Polarizer
LCD Panel
Lamp Driver
Positive (DC 300V)
Common
Start control input (SCI)
GND
Signal output
Connector 1
Connector 2
Fan 1
Fan 2
R-DM
Projection
Lens
Fan 1 Fan 2
Red: power supply
Red: GND
Red: sensor output
Collimator
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DS001AKA
Pin Description and Operating Conditions
Ambient Temperature
Optical engine unit (excluding lamp driver)
• Operating temperature Topr 0 to +50 °C
• Storage temperature Tstg –20 to +60 °C
Lamp driver unit
• Operating temperature Topr –5 to +65 °C (under forced air cooling)
• Storage temperature Tstg –40 to +85 °C
Lamp Driver Unit
+5V
4.7kΩ
Signal output
(Flag output)
SCI
GND
1
2
3
Connector 2
Connector 1
1
3
To lamp
Pin Description
Operating Conditions
Connector 1
DC power supply input
Connector 2
SCI (start control input) and signal output
1
2
3
Connector
type
positive (DC 300V)
—
common
JST (Japan Solderless Terminal)
B 2P3-VH-B
start control input (SCI)
GND
signal output (flag output)
JST (Japan Solderless Terminal)
B 3B-PH-K
Input voltage
Power consumption
Circuit loss
Lamp output
Lamp startup peak voltage
Start control input (SCI)
Input voltage
Lamp extinguish
Lamp light
Signal output (flag output)
Output voltage
Lamp extinguish
Lamp light
Min.
220
105
—
95
—
—
3.5
—
3.5
Typ.
300
110
10
100
—
—
5.0
—
—
Max.
390
120
15
105
25
1.0
7.0
1.0
—
Unit
V
W
W
W
kV
V
V
V
V
Remarks
Input current < 1.0mA
Input current < 5.0mA
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DS001AKA
DC Fan Unit (Fan 1, Fan 2)
DC fan
Sensor output (yellow)
I sink 5.0mA max
Vcc 28V max
Pin Description
Item
Red cable
Blue cable
Yellow cable
Connector type
Fan1, Fan2
power supply (positive)
GND
sensor output
When revolving: low
When restrained: high
Housing MLX5102-03
Pin MLX5103-TL
Remarks
rated 12V
restraint detection
(open collector output)
mfg. by Morex
Operating Conditions
Fan 1
Item
Supply voltage
Power consumption
Current consumption when open
Current consumption when restrained
Sensor output
Vcc
Vcc (sat)
I sink
Min.
10.5
—
—
—
—
—
—
Typ.
12.0
1.4
—
—
—
—
—
Max.
13.5
0.14
0.30
28
1.0
5.0
Unit
V
W
A
A
V
V
mA
Remarks
rated voltage
rated voltage
rated voltage
Fan 2
Item
Supply voltage
Power consumption
Current consumption when open
Current consumption when restrained
Sensor output
Vcc
Vcc (sat)
I sink
Min.
10.5
—
—
—
—
—
—
Typ.
12.0
2.0
—
—
—
—
—
Max.
13.5
0.20
0.45
28
1.0
5.0
Unit
V
W
A
A
V
V
mA
Remarks
rated voltage
rated voltage
rated voltage
For details of the LCD panel operating conditions and pin description, refer to the LCX011AM specifications.
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DS001AKA
Electro-optical Characteristics (Ta = 25°C)
LCD driver circuit
Projected size 38.665" (37" overscan of 4.5%)
Basic Measurement Conditions
(1) LCD driving voltage
HVDD = 13.5V, VVDD = 13.5V, AVDD = 15.5V
VVC = 7.0V, Vcom = 6.8V
(2) Lamp output
100W
(3) DC fan voltage
12.0V common to Fans 1 and 2
(4) Measurement temperature
25°C unless otherwise specified.
(5) Measurement point
One point in the center of screen unless otherwise specified.
(6) Measurement system
Measurement system is as shown below.
(7) Video input signal voltage Vsig
Vsig = 7.0 ± VAC [V] (VAC: signal amplitude)
∗ Measurement system I
25°C
25°C
x
y
x
y
x
y
x
y
x
y
Symbol
CR25
L
Rx
Ry
Gx
Gy
Bx
By
Wx
Wy
∆Wx
∆Wy
Measurement method
1
2
3
4
Min.
130
92
0.550
0.300
0.300
0.580
0.125
0.040
0.250
0.300
—
—
Typ.
200
120
0.590
0.340
0.340
0.620
0.155
0.070
0.290
0.340
0.005
0.010
Max.
—
—
0.640
0.380
0.380
0.660
0.185
0.100
0.330
0.380
0.040
0.040
Unit
—
ANSIlm
CIE
standards
Item
R
G
B
W
W
Contrast ratio
Luminous flux
Chromaticity
Color
uniformity
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DS001AKA
1. Contrast ratio
Contrast ratio (CR) is given by the following formula.
L(White): Surface illuminance of the screen at the input signal amplitude VAC = 0.5V
L(Black): Surface illuminance of the screen at VAC = 4.5V
Both luminances are measured by System I.
CR =
2. Luminous flux
In measurement system I, the average of the luminance at the nine points specified in ANSI standards when
the input signal amplitude VAC is 0.5V, multiplied by the effective display area, is computed.
L = average illuminance at nine ANSI points (lm/m2) × effective display area (m2)
L (White)
L (Black)
nine ANSI points: centers of each of the
areas obtained by dividing
the effective display area
into nine smaller areas
3. Chromaticity
Raster modes of each color are defined by the representations at the input signal amplitude conditions shown
in the table below.
System I uses chromaticity of x and y on the CIE standards here.
4. Color uniformity
In the measurement system I, the maximum values of the CIE color differences at the three points in the
middle row of the nine ANSI points, measured at an input signal amplitude VAC of 0.5V, are used to compute
the color uniformity.
∆Wx = x max – x min
∆Wy = y max – y min
For other electro-optical characteristics, refer to the LCX011AM specifications.
(Unit: V)
R input G input B input
0.5 4.5 4.5
4.5 0.5 4.5
4.5 4.5 0.5
R
G
B
Display raster
Signal amplitude (VAC) supplied to each input
H/3 H/3 H/3
H
V
V/3V/3V/3
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DS001AKA
Optical Characteristics
The optical performance is specified for the following projection conditions.
Projection Conditions
1
2
3
4
5
6
7
8
Item
Panel
Panel shift
Dot pitch
Maximum image height
Overscan
Effective panel size
Effective projection size
Projection magnification
1
2
3
4
5
6
7
Item
Focal length
F number
Back focus
Conjugate length
Half angle of view
TV distortion
∗1
Up/down
Right/left
Lateral chromatic
aberration vs. 550nm
470nm to 0.5H
to 0.7H
to 0.9H
to 1.0H
605nm to 0.5H
to 0.7H
to 0.9H
to 1.0H
Design value
21mm ± 5%
1.5 ± 5%
19.52mm (at ∞)
Remarks
in air
at 37" projection
698.16mm
40.79°
0.124%
0.005%
–8.0µm
–4.5µm
6.8µm
15.7µm
10.9µm
12.9µm
11.9µm
10.1µm
at 45" projection
812.18mm
40.84°
0.444%
0.005%
–8.0µm
–4.6µm
6.5µm
15.3µm
10.9µm
12.9µm
12.0µm
10.4µm
at 60" projection
1036.01mm
40.92°
1.112%
0.082%
–7.8µm
–4.6µm
6.2µm
14.7µm
10.8µm
12.9µm
12.2µm
10.7µm
Setting value
1.43'' (31.68mm × 17.76mm)
none
19.8µm × 37.0µm
18.16mm
4.5% (NTSC)
1.368'' (30.316mm × 16.995mm)
30 to 60''
27.04×/37", fixed focus (including distortion)
Projection Lens Specifications (design)
∗1
TV distortion is defined by the diagram and equations below.
A
B
y
y
xx
D C
Right/left distortion = (4x)/(A + B)
Up/down distortion = (4y)/(C + D)
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DS001AKA
1. Focus adjustment
Loosen the screws (four) holding the projection lens in place, and adjust the eccentricity roller for focus
adjustment to change the focus between 30" to 60".
Relation between projection size and projection distance
∗1
70
60
50
40
30
20
10
0
Projection size (diagonal) [inch]
400 500 600 700 800 900
Projection distance [nm]
2. Floating mechanism
The floating mechanism corrects for distortion between 30" to 60". At time of shipment, it is optimized for a
diagonal of 37" (including 4.5% overscan), but the floating mechanism should be adjusted if the projection size
is different and image distortion becomes prominent. Recommended values for different projection sizes are
given below, but adjustments should be made such that image distortion is minimized.
Recommended floating mechanism settings
Projection size (diagonal) [inch]
31.48
38.74
46.57
51.50
56.34
61.22
Recommended floating mechanism setting
1
3
4.6
5.6
6.6
7.6
∗1
The projection distance is the distance from the front edge of the projection lens to the screen.
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DS001AKA
3. Registration
Adjustment of the LCD panel registration, expressed as a horizontal adjustment (∆h) and vertical adjustment
(∆v), shall lie within a circle of radius 0.66mm.
∆h2+ ∆v2= (0.66mm)
2
Servicing Parts
The following is a list of parts used in servicing.
Part number
DS-A001
DS-A002
DS-A003
DS-A004
DS-A005
DS-A006
DS-A007
Name
Lamp unit
Lamp driver
Polarizer unit
Diffraction grating unit
Projection lens
FAN1
FAN2
Construction
lamp + lamp housing
polarizer + holder
diffraction grating + holder
Remarks
1
2
3
4
5
6
7
Page 10
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DS001AKA
Notes on Handling
(1) Cooling
1) This optical engine is provided with DC fans to cool the panel and lamp unit. However, the set should
be designed for enough ventilation and convection to ensure sufficient cooling.
2) The lamp should under no circumstances be lit while the cooling DC fans are not operating. The
cooling DC fans are provided with sensor output pins to detect operation, and the lamp driver is
provided with start control input pins. The set should be designed so that if the cooling fans are not
operating, the lamp driver does not operate.
3) When using a dust filter with ventilation orifices, reduced ventilation due to filter clogging can cause
rises in temperature, possibly damaging the LCD or other components. The temperature of the optical
engine should be controlled, and filters should be changed as appropriate.
(2) Lamp unit
1) In order to prevent burns and other accidents, do not directly touch the lamp housing while the lamp is
lit or immediately after it has been extinguished.
2) Because of the extremely high focusing power of the ellipsoid reflector, if it is not installed in the
specified position, damage to the engine or other problems may arise. Ensure that, if the lamp housing
is not mounted in the specified position when changing the lamp, the lamp power supply will not
operate.
3) Always use the included lamp driver to light the lamp. If the lamp is turned on and off repeatedly in
short cycles, the lamp lifetime will be shortened.
4) The lamp is designed to be lit in a horizontal position. Ensure that the optical axis of the ellipsoid
reflector is within ±20° of horizontal.
5) The lamp emits ultraviolet rays while lit and immediately after being extinguished. Be sure not to look
directly at the lamp.
(3) Protection from dust and dirt
Image quality is significantly degraded by dust in the optical engine. Employ a set construction such that
after dust is removed by a filter or other means during air cooling, air is blown into the optical engine.
1) Operate in clean environment.
2) Do not touch the surface of a projection lens and polarizer. The surfaces are easily scratched. When
cleaning, use a clean-room wiper with isopropyl alcohol. Be careful not to leave stains on the surface.
3) Use ionized air to blow off dust at an optical engine.
(4) Static charge prevention
1) Use non-chargeable gloves, or simply use bare hands.
2) Do not touch any electrodes.
3) Wear non-chargeable clothes and conductive shoes.
4) Keep optical engines away from any charged materials.
5) Use ionized air or some other means to discharge.
Page 11
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DS001AKA
(5) Other handling precautions
1) The DM angles of this optical engine are adjusted to their optimal values, and should not be changed.
2) Do not remove or take apart the engine cover, projection lens, projection lens mount, relay lens,
integrator support, or lamp housing.
3) Light emitted from the lamp and from the projection lens may harm the eyes. Do not look directly into
the light from the lamp or lens.
4) Do not drop an optical engine.
5) Do not twist or bend an optical engine.
6) Keep an optical engine away from heat source.
7) Do not dampen an optical engine with water or other solvents.
8) Avoid to store or to use an optical engine in high temperature or in high humidity, which may result in
optical engine damages.
Page 12
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DS001AKA
Package Outline (lamp ballast unit) Unit: mm
118 ± 0.2
3.3 (CB2,CB3)
101.8
31.1
22.2
5.0
±
0.2
5.0
±
0.2
5.2 (CB1)
150
±
0.2
280
±
5
4.0 max.
1.6
± 0.14
5.0 ± 0.2
5.0
± 0.2
4-φ4.0
25
+2
0
+0.2
0
Page 13
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DS001AKA
Package Outline (optical engine unit) Unit: mm
53.6
±
0.5
223.1(226.1)(220.1)
±
1.0
124.6
±
0.5
(61.6)
497.9 ± 1.5
406.1
± 1.0
76.6
± 0.5
136.4
± 0.5
65.1
± 0.5
68.0
± 0.4
115.0
± 0.4
15.0
± 0.4
5.0
± 0.4
4.0H9
±
0.1
90.0
±
0.15
115.0
±
0.4
125.0
±
0.4
152.7
±
0.3
53.1
±
0.5
165.0
±
0.4
180.0
±
0.25
(7.0)
37.2
±
0.3
26.0
±
0.3
63.1
±
0.5
66.0
±
0.5
84.2
±
0.5
52.0
±
0.5
50.0
±
0.3
10.0
50.0
±
0.3
(60.0)
60.0
± 0.15
128.0
± 0.25
177.5
± 0.25
303.6
± 0.35 100 ± 0.5
120.0
± 0.15
143.2
± 0.25
φ4.0H9
3-
φ4.8 ± 0.1
8-
φ5.0
15.0
± 0.1
15.0
± 0.1
128.0
± 0.5
100.0
52.5
± 0.5
59.2 ± 0.5
67.2
± 0.5
286.3
± 0.4
354.1
± 1.0
2-R2.3
103.7
±
0.2
58.2 ± 0.5
(66.0)
35.3
± 0.3
65.3
°
47.1
±
0.3
55.5
±
0.5
2.0
50.0
± 0.3
(11.6)
+ 0.4
– 0.05
+ 0.1
0
91.1
±
0.35
20.0
180.0
±
0.4
±
0.2
± 0.5
6-φ7.0Height 7.0,
Precision of boss position ± 0.4
6-
φ2.4 ± 0.02C0.3,Depth 8.0
Precision of PWB holder holes
± 0.4 (X4)
(Center of boss)
(Center of base hole)
(Center of position hole
- Surface of 1st lens)
531mm from the screen
68.34
±
2.5
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