Datasheet DS002AKA Datasheet (Sony)

Page 1

DS002AKA

For the availability of this product, please contact the sales office.

Single-Panel Liquid Crystal Optical Engine for Rear Pr ojectors

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)

Preliminary

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.

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PE97X07-PS

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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

HID Lamp

Fan 1

Fan 1 Fan 2

UV/IR Cut Filter

Connector 1

Connector 2

Lamp Driver

Red: power supply Blue: GND Yellow: sensor output

Pre-Polarizer

Glass Rod Integrator

Relay Lens

Positive (DC 300V) Common

Start control input (SCI) GND Signal output

R-DM

Fan 2

B-DM G-DM

Polarizer

Collimator

LCD Panel

Projection Lens

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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

DS002AKA

Pin Description

1 2 3

Connector

JST (Japan Solderless Terminal)

type

To lamp

Connector 1

DC power supply input

positive (DC 300V)

—

common

B 3B-PH-K

Connector 2

1 2 3

Connector 1

SCI GND

4.7kΩ

Connector 2

SCI (start control input) and signal output

start control input (SCI)

GND

signal output (flag output)

JST (Japan Solderless Terminal)

B 2P3-VH-B

+5V

Signal output (Flag output)

Operating Conditions

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

100

—

5.0

— —

Max.

390 120

105

1.0

7.0

1.0 —

Unit

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Remarks

V W W W

Input current < 1.0mA

Input current < 5.0mA

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DC Fan Unit (Fan 1, Fan 2)

DS002AKA

Pin Description

Item

Red cable

power supply (positive)

Blue cable

sensor output

Yellow cable

When revolving: low When restrained: high

Connector type

Housing MLX5102-03 Pin MLX5103-TL

Operating Conditions Fan 1

DC fan

Fan1, Fan2

GND

Vcc 28V max

I sink 5.0mA max

Sensor output (yellow)

Remarks

rated 12V

restraint detection

(open collector output)

mfg. by Morex

Item Supply voltage Power consumption Current consumption when open Current consumption when restrained Sensor output

Vcc Vcc (sat) I sink

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 — — —

— — —

Min.

10.5 — — —

— — —

Typ.

12.0

1.4 — —

— — —

Typ.

12.0

2.0 — —

— — —

Max.

13.5

0.14

0.30

1.0

5.0

Max.

13.5

0.20

0.45

1.0

5.0

Unit

A A

V V

Unit

A A

V V

Remarks

rated voltage rated voltage rated voltage

Remarks

rated voltage rated voltage rated voltage

For details of the LCD panel operating conditions and pin description, refer to the LCX019AM specifications.

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DS002AKA

Electro-optical Characteristics (Ta = 25°C)

Item Contrast ratio Luminous flux

25°C 25°C

Symbol

CR25

Measurement method

1 2

Chromaticity

x y

x y x

Ry Gx Gy

Bx By

Color uniformity

y x

∆Wx

∆Wy

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)

Min.

130

—

0.550

0.300

0.580

0.125

0.040

0.250

0.300 — —

Typ.

200 120

0.590

0.340

0.620

0.155

0.070

0.290

0.340

0.005

0.010

Max.

— —

0.640

0.380

0.660

0.185

0.100

0.330

0.380

0.040

Unit

—

ANSIlm

CIE standards

∗ Measurement system I

Projected size 41.8" (40" overscan of 4.5%)

LCD driver circuit

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Page 6

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.

DS002AKA

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

nine ANSI points: centers of each of the

areas obtained by dividing

V/3

the effective display area into nine smaller areas

V/3

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.

Signal amplitude (VAC) supplied to each input

R input G input B input R G B

Display raster

0.5 4.5 4.5

4.5 0.5 4.5

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.

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Optical Characteristics

The optical performance is specified for the following projection conditions.

Projection Conditions

DS002AKA

Item

Panel

Panel shift

Dot pitch

Maximum image height

Overscan

Effective panel size

Effective projection size

Projection magnification

1.32'' (26.82mm × 20.12mm) none

22.4µm × 41.8µm

16.76mm

4.5% (NTSC)

1.263'' (25.667mm × 19.250mm) 27 to 55''

31.67×/40", fixed focus (including distortion)

Projection Lens Specifications (design)

Item

Focal length

F number

Back focus

19.52mm (at ∞)

at 35" projection

Conjugate length

698mm

Setting value

Design value

21mm ± 5%

1.5 ± 5%

at 40" projection

806mm

Remarks

in air

at 55" projection

965mm

Half angle of view TV distortion

Up/down

∗1

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

∗1

TV distortion is defined by the diagram and equations below.

38.52°

0.059%

–0.014%

–8.0µm –6.2µm

1.9µm

8.7µm

10.3µm

12.6µm

11.6µm

38.40°

0.301%

0.107%

–8.0µm –6.2µm

1.7µm

8.4µm

10.3µm

12.7µm

11.8µm

Right/left distortion = (4x)/(A + B) Up/down distortion = (4y)/(C + D)

38.26°

0.622%

0.271%

–7.9µm –6.2µm

1.6µm

8.1µm

10.3µm

12.6µm

12.8µm

11.9µm

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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

Projection size (diagonal) [inch]

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.

∗1

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]

29.11

35.75

42.95

47.48

51.93

56.42

Recommended floating mechanism setting

1 3

4.6

5.6

6.6

7.6

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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)

Servicing Parts

The following is a list of parts used in servicing.

Part number 1 2 3 4 5 6 7

DS-A001 DS-A002 DS-A003 DS-A004 DS-A005 DS-A006 DS-A007

Diffraction grating unit

Name

Lamp unit

Lamp driver

Polarizer unit

Projection lens

FAN1 FAN2

Construction

lamp + lamp housing

polarizer + holder

diffraction grating + holder

Remarks

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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.

DS002AKA

(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.

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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.

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Page 12

4-φ4.0

+0.2

DS002AKA

280

5.0

± 0.2

101.8

118 ± 0.2

22.2

31.1

5.0 ± 0.2

0.2

5.0

0.2

150

0.2

3.3 (CB2,CB3)

5.2 (CB1)

5.0

4.0 max.

1.6

± 0.14

Package Outline (lamp ballast unit) Unit: mm

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Page 13

DS002AKA

± 0.4 (X4)

53.1

0.5

Precision of PWB holder holes

± 0.5

± 0.4

76.6

65.1

115.0

± 0.4

± 0.5

136.4

15.0

68.0 ± 0.4

5.0

± 1.0

493.4 ± 1.5

401.6

0.4

(Center of boss)

0.25

(Center of base hole)

165.0

0.4

0.3

0.4

0.15

0.1

2-R2.3

0.2

0.35

180.0

152.7

125.0

115.0

20.0

180.0

90.0

103.7

91.1

4.0H9

(60.0)

± 0.15

± 0.25

128.0

60.0

2.5

± 0.25

177.5

± 0.35 100 ± 0.5

(7.0)

531mm from the screen

- Surface of 1st lens) (Center of position hole

68.34

± 0.25

± 0.15

143.2

120.0

(11.6)

0.3

0.5

0.3

± ±

37.2

26.0

63.1

50.0

± 0.5

128.0

± 0.4

281.8

± 1.0

349.6

Precision of boss position ± 0.4

6-φ7.0Height 7.0,

± 0.3

35.3

58.2 ± 0.5

(66.0)

φ2.4 ± 0.02C0.3,Depth 8.0

0.5

53.6

0.5

47.1

0.3

65.3

(61.6)

124.6

1.0

+ 0.1

8-φ5.0

0.5

3-φ4.8 ± 0.1

55.5

+ 0.4

223.1(226.1)(220.1)

– 0.05

2.0

φ4.0H9

± 0.3

50.0

± 0.1

15.0

299.1

± 0.1

15.0

0.5

± 0.5

100.0

10.0

0.2

50.0

0.3

52.0

0.5

66.0

84.2

± 0.5

52.5

59.2 ± 0.5

± 0.5

67.2

Package Outline (optical engine unit) Unit: mm

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