SONY DS002AKA

DS002AKA
Single-Panel Liquid Crystal Optical Engine for Rear Projectors Preliminary
For the availability of this product, please contact the sales office.
Description
The DS002AKA is a single-panel liquid crystal
optical engine for use in rear projectors, capable of
full-color displays without color filters (CF).
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 27" to 55" 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: 576,000
• Horizontal resolution: 600 TV lines
• NTSC mode selectable (PAL mode also available through conversion of scanned dot numbers by an
external IC)
• Up/down and/or right/left inverse display 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 (646mm/40", at 4.5% overscanning)
• Image distortion correction floating mechanism to support 27" to 55"
• 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 (LCX019AM)
Dots
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
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.
–1–
PE97X07-PS
DS002AKA
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 LCX019AM specifications.
Block Diagram
Fan 1
Fan 2
Red: power supply
Blue: GND
Yellow: sensor output
Pre-Polarizer
R-DM
HID
Lamp
Fan 2
Glass Rod
Integrator
B-DM
G-DM
Relay Lens
Polarizer
UV/IR Cut
Filter
Collimator
Fan 1
LCD Panel
Positive (DC 300V)
Connector 1
Common
Start control input (SCI)
GND
Signal output
Connector 2
Lamp Driver
–2–
Projection
Lens
DS002AKA
Pin Description and Operating Conditions
Ambient Temperature
Optical engine unit (excluding lamp driver)
• Operating temperature
Topr
0 to +50
• Storage temperature
Tstg
–20 to +60
Lamp driver unit
• Operating temperature
Topr
–5 to +65
• Storage temperature
Tstg
–40 to +85
°C
°C
°C (under forced air cooling)
°C
Lamp Driver Unit
+5V
Connector 2
SCI
GND
1
2
3
To lamp
4.7kΩ
Signal output
(Flag output)
Connector 1
1
3
Pin Description
Connector 1
DC power supply input
Connector 2
SCI (start control input) and signal output
1
positive (DC 300V)
start control input (SCI)
2
—
GND
3
common
signal output (flag output)
Connector JST (Japan Solderless Terminal)
type
B 3B-PH-K
JST (Japan Solderless Terminal)
B 2P3-VH-B
Operating Conditions
Min.
Typ.
Max.
Unit
Input voltage
220
300
390
V
Power consumption
105
110
120
W
Circuit loss
—
10
15
W
Lamp output
95
100
105
W
Lamp startup peak voltage
—
—
25
kV
Start control input (SCI)
Input voltage
Lamp extinguish
Lamp light
—
3.5
—
5.0
1.0
7.0
V
V
Signal output (flag output)
Output voltage
Lamp extinguish
Lamp light
—
3.5
—
—
1.0
—
V
V
–3–
Remarks
Input current < 1.0mA
Input current < 5.0mA
DS002AKA
DC Fan Unit (Fan 1, Fan 2)
DC fan
Vcc 28V max
I sink 5.0mA max
Sensor output (yellow)
Pin Description
Item
Fan1, Fan2
Remarks
Red cable
power supply (positive)
rated 12V
Blue cable
GND
Yellow cable
sensor output
When revolving: low
When restrained: high
Connector type
Housing MLX5102-03
Pin
MLX5103-TL
restraint detection
(open collector output)
mfg. by Morex
Operating Conditions
Fan 1
Item
Min.
Typ.
Max.
Unit
10.5
12.0
13.5
V
Power consumption
—
1.4
Current consumption when open
—
—
Current consumption when restrained
—
Sensor output
Vcc
Vcc (sat)
I sink
Supply voltage
Remarks
W
rated voltage
0.14
A
rated voltage
—
0.30
A
rated voltage
—
—
—
—
—
—
28
1.0
5.0
V
V
mA
Min.
Typ.
Max.
Unit
10.5
12.0
13.5
V
Power consumption
—
2.0
Current consumption when open
—
—
Current consumption when restrained
—
Sensor output
Vcc
Vcc (sat)
I sink
—
—
—
Fan 2
Item
Supply voltage
Remarks
W
rated voltage
0.20
A
rated voltage
—
0.45
A
rated voltage
—
—
—
28
1.0
5.0
V
V
mA
For details of the LCD panel operating conditions and pin description, refer to the LCX019AM specifications.
–4–
DS002AKA
Electro-optical Characteristics
Item
(Ta = 25°C)
Symbol
Measurement method
Min.
Typ.
Max.
Unit
Contrast ratio
25°C
CR25
1
130
200
—
—
Luminous flux
25°C
L
2
—
120
—
ANSIlm
x
Rx
0.550
0.590
0.640
y
Ry
0.300
0.340
0.380
x
Gx
0.300
0.340
0.380
y
Gy
0.580
0.620
0.660
x
Bx
0.125
0.155
0.185
y
By
0.040
0.070
0.100
x
Wx
0.250
0.290
0.330
y
Wy
0.300
0.340
0.380
x
∆Wx
—
0.005
0.040
y
∆Wy
—
0.010
0.040
R
G
Chromaticity
B
W
Color
uniformity
W
3
4
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
LCD driver circuit
Projected size 41.8" (40" overscan of 4.5%)
–5–
CIE
standards
DS002AKA
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 =
L (White)
L (Black)
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)
H/3
H/3
H/3
V/3
V
V/3
V/3
nine ANSI points: centers of each of the
areas obtained by dividing
the effective display area
into nine smaller areas
H
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.
Display raster
Signal amplitude (VAC) supplied to each input
R input
G input
B input
R
0.5
4.5
4.5
G
4.5
0.5
4.5
B
4.5
4.5
0.5
(Unit: V)
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 LCX019AM specifications.
–6–
DS002AKA
Optical Characteristics
The optical performance is specified for the following projection conditions.
Projection Conditions
Setting value
Item
1
Panel
1.32'' (26.82mm × 20.12mm)
2
Panel shift
none
3
Dot pitch
22.4µm × 41.8µm
4
Maximum image height
16.76mm
5
Overscan
4.5% (NTSC)
6
Effective panel size
1.263'' (25.667mm × 19.250mm)
7
Effective projection size
27 to 55''
8
Projection magnification
31.67×/40", fixed focus (including distortion)
Projection Lens Specifications (design)
Design value
Item
1
Focal length
2
F number
3
Back focus
Remarks
21mm ± 5%
1.5 ± 5%
19.52mm (at ∞)
in air
at 35" projection at 40" projection at 55" projection
4
Conjugate length
698mm
806mm
965mm
5
Half angle of view
TV distortion∗1
Up/down
Right/left
38.52°
38.40°
38.26°
0.059%
–0.014%
0.301%
0.107%
0.622%
0.271%
6
Lateral chromatic
aberration vs. 550nm
7
470nm
to 0.5H
to 0.7H
to 0.9H
to 1.0H
–8.0µm
–6.2µm
1.9µm
8.7µm
–8.0µm
–6.2µm
1.7µm
8.4µm
–7.9µm
–6.2µm
1.6µm
8.1µm
605nm
to 0.5H
to 0.7H
to 0.9H
to 1.0H
10.3µm
12.6µm
12.6µm
11.6µm
10.3µm
12.7µm
12.7µm
11.8µm
10.3µm
12.6µm
12.8µm
11.9µm
∗1 TV distortion is defined by the diagram and equations below.
A
Right/left distortion = (4x)/(A + B)
Up/down distortion = (4y)/(C + D)
y
D
x
x
C
y
B
–7–
DS002AKA
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 27" to 55".
Relation between projection size and projection distance∗1
70
Projection size (diagonal) [inch]
60
50
40
30
20
10
0
400
500
600
700
800
900
Projection distance [nm]
∗1 The projection distance is the distance from the front edge of the projection lens to the screen.
2. Floating mechanism
The floating mechanism corrects for distortion between 27" to 55". At time of shipment, it is optimized for a
diagonal of 40" (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]
Recommended floating mechanism setting
29.11
35.75
42.95
47.48
51.93
56.42
1
3
4.6
5.6
6.6
7.6
–8–
DS002AKA
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
Name
Construction
1
DS-A001
Lamp unit
lamp + lamp housing
2
DS-A002
Lamp driver
3
DS-A003
Polarizer unit
4
DS-A004
5
DS-A005
Projection lens
6
DS-A006
FAN1
7
DS-A007
FAN2
polarizer + holder
Diffraction grating unit diffraction grating + holder
–9–
Remarks
DS002AKA
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.
– 10 –
DS002AKA
(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.
– 11 –
Package Outline (lamp ballast unit)
5.0 ± 0.2
22.2
101.8
31.1
118 ± 0.2
– 12 –
5.2 (CB1)
5.0 ± 0.2
3.3 (CB2,CB3)
Unit: mm
150 ± 0.2
5.0 ± 0.2
280 ± 5
DS002AKA
4-φ4.0 +0.2
0
5.0 ± 0.2
4.0 max.
1.6 ± 0.14
+2
25 0
0.05
+ 0.4
2.0 –
3°
65.
50.0 ± 0.3
5
5.5
±0
.5
66.0 ± 0.5
47.1 ± 0.3
35.3 ± 0.3
84.2 ± 0.5
67.2 ± 0.5
52.5 ± 0.5
59.2 ± 0.5
0
+ 0.1
100.0 ± 0.5
φ4.0H9
8-φ5.0
AA
AA
15.0 ± 0.1
15.0 ± 0.1
3-φ4.8 ± 0.1
5.0
15.0
349.6 ± 1.0
281.8 ± 0.4
± 0.4
128.0
A
± 0.5
120.0 ± 0.15
143.2 ± 0.25
2-R2.3
Precision of PWB holder holes ± 0.4 (X4)
20.0 ± 0.1
76.6 ± 0.5
65.1 ± 0.5
100 ± 0.5
(60.0)
± 0.4
± 0.4
68.0 ± 0.4 115.0
(11.6)
60.0
91.1 ± 0.35
± 0.15
128.0 ± 0.25
177.5 ± 0.25
299.1 ± 0.35
6-φ2.4 ± 0.02C0.3,Depth 8.0
103.7 ± 0.2
± 0.5
53.6
223.1(226.1)(220.1) ± 1.0
52.0 ± 0.5
± 0.5
± 0.3
50.0
136.4 ± 0.5
68.34 ± 2.5
6-φ7.0Height 7.0,
Precision of boss position ± 0.4
50.0 ± 0.3
90.0 ± 0.15
(7.0)
58.2 ± 0.5
(66.0)
115.0 ± 0.4
37.2 ± 0.3
124.6
(61.6)
10.0 ± 0.2
4.0H9
(Center of position hole
- Surface of 1st lens)
531mm from the screen
63.1 ± 0.5
– 13 –
26.0 ± 0.3
53.1 ± 0.5
152.7 ± 0.3
493.4 ± 1.5
125.0 ± 0.4
401.6 ± 1.0
180.0 ± 0.4 (Center of boss)
Unit: mm
165.0 ± 0.4
180.0 ± 0.25(Center of base hole)
Package Outline (optical engine unit)
DS002AKA