Sony DS005AKA Datasheet

Single-Panel Liquid Crystal Optical Engine for Rear Projectors

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E99262A97-PS

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.

DS005AKA

Description

The DS005AKA is a single-panel liquid crystal optical engine for use in rear projectors, and is capable of full-color displays without color filters (CF).

The DS005AKA employs a square pixel arrangement optimal for data projector applications, and allows clear graphic and character displays. Up/down and/or right/left inversion functions accommodate various mounting methods.

Short projection distances are made possible through the adoption of an ultra-wide angle lens. In addition, a projection lens floating mechanism delivers 40" to 50" projected images with minimal image distortion.

A high intensity discharge (HID) lamp ensures high luminance and low power consumption.

Features

• Number of active dots: 1,456,000

• Horizontal resolution: 600 TV lines

• Supports SVGA (804 × 3 × 604)/PC98∗(804 × 3 × 500) mode display

NTSC/NTSC-WIDE/PAL/PAL-WIDE modes 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 luminance: normally-white 200 ANSIlm (typ.)

• Ultra-wide angle lens for short projection distances (592.8mm/39.8")

• Image distortion correction floating mechanism to support 40" to 50"

• Relative luminance: 70% or more

• Uses HID lamp (100W)

∗

"PC98" is a trademark of NEC Corporation.

Engine Configuration

• HID lamp

• Lamp driver (DC 300V input)

• High-efficiency illumination system employing an integrator

• Separate RGB illumination systems using dichroic mirrors (DM)

• LCD panel mounting mechanism, adjustable along XYθ axes

• LCD panel (LCX021BM)

Dots: 2412 (H) × 604 (V) = 1,456,848 dots

• Wide fixed focal length lens for enlarged projection of LCD

Applications

Liquid crystal rear projection TV/monitor

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

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DS005AKA

Description of Basic Operation

• Apply DC 300V to the lamp driver.

• Light emitted by the lamp is focused by an elliptical reflector and is converted to an approximately collimated

ray by a relay lens.

• After that the light passes through the polarizer conversion system elements and an optical integrator.

• Light output from the optical integrator passes through a Fresnel lens to become a collimated ray, which is

color-separated by a group of dichroic mirrors.

• The color-separated rays illuminate the LCX021BM evenly, and are focused on the respective RGB dots by microlenses mounted on the LCX021BM 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, see the LCX021BM specifications.

Block Diagram

Lamp Driver

Positive (DC 300V)

Common

Start control input (SCI)

GND

Signal output

Connector 1

Connector 2

LampUV/IR

Relay Lens

Polarization Conversion System

Integrator

Fresnel Lens

Mirror

Dichroic Mirrors

LCD with burried Microlens Array (LCX021BM)

Projection Lens

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DS005AKA

Pin Description and Operating Conditions Absolute Maximum Ratings (∗measured by thermocouples)

Optical engine unit (excluding lamp driver)

• Operating temperature Topr 0 to +40 °C

• Panel and incident side polarizer temperature

∗

55°C or less (∆T = 15°C or less at an ambient temperature of 40°C)

• PBS top (no contact with metal portions)

∗

70°C or less (∆T = 30°C or less at an ambient temperature of 40°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

SCI GND

1 2 3

Connector 2

Connector 1

To lamp

(Flag output)

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 (J.S.T. Mfg. Co., Ltd.)

B 2P3-VH-B

Start control input (SCI)

GND

Signal output (flag output)

JST (J.S.T. Mfg. Co., Ltd.)

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

100

—

5.0

— —

Max.

390 120

105

1.0

7.0

1.0 —

Unit

V W W W

Remarks

Input current < 1.0mA Input current < 5.0mA

For details of the LCD panel operating conditions and pin description, see the LCX021BM specifications.

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DS005AKA

Electro-optical Characteristics (Ta = 25°C)

Basic Measurement Conditions

(1) LCD driving voltage

HVDD = 15.5V, VVDD = 15.5V, VVC = 7.0V, Vcom = 6.6V

(2) Lamp output

100W

(3) Cooling conditions

Forced air cooling by DC fans

(4) Measurement temperature

25°C unless otherwise specified.

(5) Measurement point

One point in the center of the screen unless otherwise specified.

(6) Measurement system

The measurement system is as shown below.

(7) Video input signal voltage Vsig

Vsig = 7.0 ± VAC [V] (VAC = signal amplitude)

LCD driver circuit

Projected size 40"

Measurement System I

25°C 25°C

x y x y x y x y

∆u'v'

Symbol

CR25

L Rx Ry Gx Gy Bx By

Wx Wy

∆u'v'w

Measurement method

1 2

Min.

130 150

0.570

0.300

0.265

0.620

0.125

0.030

0.240

0.300 —

Typ.

180 200

0.600

0.340

0.305

0.660

0.155

0.060

0.280

0.340

0.015

Max.

— —

0.640

0.380

0.345

0.700

0.185

0.090

0.320

0.380

0.025

Unit

—

ANSIlm

CIE standards

Item

Contrast ratio Luminous intensity

Chromaticity

Color shading

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