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| 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 XY axes * LCD panel (LCX019AM) Dots 1199.5 (H) x 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 Red: power supply Blue: GND Yellow: sensor output Pre-Polarizer HID Lamp Glass Rod Integrator R-DM Fan 2 Fan 2 B-DM G-DM Relay Lens UV/IR Cut Filter Fan 1 Polarizer Collimator LCD Panel Connector 1 Positive (DC 300V) Common Start control input (SCI) GND Signal output Projection Lens Connector 2 Lamp Driver -2- 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 Lamp Driver Unit C C C (under forced air cooling) C Connector 2 1 2 3 To lamp Connector 1 1 3 SCI GND +5V 4.7k Signal output (Flag output) Pin Description Connector 1 DC power supply input 1 2 3 positive (DC 300V) -- common 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 Connector JST (Japan Solderless Terminal) type B 3B-PH-K Operating Conditions Min. 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 220 105 -- 95 -- Typ. 300 110 10 100 -- Max. 390 120 15 105 25 Unit V W W W kV Remarks -- 3.5 -- 5.0 1.0 7.0 V V Input current < 1.0mA Input current < 5.0mA -- 3.5 -- -- 1.0 -- V V -3- DS002AKA DC Fan Unit (Fan 1, Fan 2) DC fan Vcc 28V max I sink 5.0mA max Sensor output (yellow) Pin Description Item Red cable Blue cable Yellow cable Fan1, Fan2 power supply (positive) GND sensor output When revolving: low When restrained: high Housing MLX5102-03 Pin MLX5103-TL restraint detection (open collector output) mfg. by Morex Remarks rated 12V Connector type 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 -- -- -- -- -- 0.14 0.30 28 1.0 5.0 Max. 13.5 Unit V W A A V V mA rated voltage rated voltage rated voltage Remarks 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 -- -- -- -- -- 0.20 0.45 28 1.0 5.0 Max. 13.5 Unit V W A A V V mA rated voltage rated voltage rated voltage Remarks For details of the LCD panel operating conditions and pin description, refer to the LCX019AM specifications. -4- DS002AKA Electro-optical Characteristics Item Contrast ratio Luminous flux R 25C 25C x y G Chromaticity B x y x y W Color uniformity x y W x y Symbol CR25 L Rx Ry Gx Gy Bx By Wx Wy Wx Wy 4 3 Measurement method 1 2 Min. 130 -- 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 (Ta = 25C) Unit -- ANSIlm CIE standards 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 25C 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- 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) x effective display area (m2) H/3 H/3 H/3 nine ANSI points: centers of each of the areas obtained by dividing the effective display area into nine smaller areas V 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. Signal amplitude (VAC) supplied to each input R input Display raster R G B 0.5 4.5 4.5 G input 4.5 0.5 4.5 B input 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- V/3 V/3 V/3 DS002AKA Optical Characteristics The optical performance is specified for the following projection conditions. Projection Conditions Item 1 2 3 4 5 6 7 8 Panel Panel shift Dot pitch Maximum image height Overscan Effective panel size Effective projection size Projection magnification Setting value 1.32'' (26.82mm x 20.12mm) none 22.4m x 41.8m 16.76mm 4.5% (NTSC) 1.263'' (25.667mm x 19.250mm) 27 to 55'' 31.67x/40", fixed focus (including distortion) Projection Lens Specifications (design) Item 1 2 3 Focal length F number Back focus Design value 21mm 5% 1.5 5% 19.52mm (at ) in air Remarks at 35" projection at 40" projection at 55" projection 4 5 6 Conjugate length Half angle of view TV distortion1 Up/down Right/left Lateral chromatic aberration vs. 550nm 470nm to 0.5H to 0.7H to 0.9H to 1.0H to 0.5H to 0.7H to 0.9H to 1.0H -8.0m -6.2m 1.9m 8.7m 10.3m 12.6m 12.6m 11.6m -8.0m -6.2m 1.7m 8.4m 10.3m 12.7m 12.7m 11.8m -7.9m -6.2m 1.6m 8.1m 10.3m 12.6m 12.8m 11.9m 698mm 38.52 0.059% -0.014% 806mm 38.40 0.301% 0.107% 965mm 38.26 0.622% 0.271% 7 605nm 1 TV distortion is defined by the diagram and equations below. A y Right/left distortion = (4x)/(A + B) Up/down distortion = (4y)/(C + D) x C D x 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 distance1 70 60 Projection size (diagonal) [inch] 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] 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 -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 1 2 3 4 5 6 7 DS-A001 DS-A002 DS-A003 DS-A004 DS-A005 DS-A006 DS-A007 Name Lamp unit Lamp driver Polarizer unit polarizer + holder Construction lamp + lamp housing Remarks Diffraction grating unit diffraction grating + holder Projection lens FAN1 FAN2 -9- 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) Unit: mm 5.0 0.2 101.8 118 0.2 31.1 22.2 - 12 - 4-4.0 +0.2 0 3.3 (CB2,CB3) 5.0 0.2 5.2 (CB1) 150 0.2 5.0 0.2 5.0 0.2 280 5 4.0 max. 1.6 0.14 +2 25 0 DS002AKA Package Outline (optical engine unit) Unit: mm 493.4 1.5 401.6 1.0 6-7.0Height 7.0, Precision of boss position 0.4 68.0 0.4 115.0 15.0 5.0 136.4 0.5 65.1 0.5 76.6 0.5 Precision of PWB holder holes 0.4 (X4) 58.2 0.5 (66.0) 35.3 0.3 6-2.4 0.02C0.3,Depth 8.0 3 65. 47.1 0.3 53.6 0.5 0.4 0.4 124.6 (61.6) 0.5 103.7 0.2 91.1 0.35 90.0 0.15 + 0.4 4.0H9 223.1(226.1)(220.1) 1.0 2.0 - 0.05 60.0 (60.0) 4.0H9 15.0 0.1 15.0 0.1 (11.6) 299.1 0.35 100 0.5 120.0 0.15 143.2 0.25 68.34 2.5 50.0 0.3 0.15 128.0 0.25 177.5 0.25 66.0 0.5 84.2 0.5 52.0 0.5 50.0 0.3 10.0 0.2 100.0 0.5 128.0 281.8 0.4 349.6 1.0 50.0 0.3 52.5 0.5 59.2 0.5 DS002AKA 67.2 0.5 63.1 0.5 26.0 0.3 37.2 0.3 0.5 (Center of position hole - Surface of 1st lens) 531mm from the screen (7.0) 165.0 0.4 180.0 0.25(Center of base hole) 20.0 0.1 125.0 0.4 152.7 0.3 115.0 0.4 5 180.0 0.4 (Center of boss) 5.5 0 8-5.0 0 .5 2-R2.3 3-4.8 0.1 + 0.1 53.1 0.5 0.4 - 13 - |
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