Planar LC640.480.33-AC User manual

Operations Manual
LC640.480.33-AC
HIGH BRIGHTNESS 10.4" COLOR TFT AMLCD
The Definition of Quality
®

Copyright © 1999 by Planar Systems, Inc.
Planar and The Definition of Quality are registered trademarks.
ColorBrite is a trademark of Planar Systems, Inc.
This document is subject to change without notice. Planar provides this information as reference only and does not
imply any recommendation or endorsement of other vendor’s products.
Revision Control
Date Description
May 1999 Document number OM600-01

Contents
LC640.480.33-AC Display..............................................................................................................3
Features and Benefits...................................................................................................................3
Installation and Handling.................................................................................................................4
Mounting the Display ..................................................................................................................4
Mounting Display Face Down.................................................................................................4
Mounting ECA Face Down......................................................................................................4
Vent Clearance ........................................................................................................................5
Isolation/Air Gap.....................................................................................................................5
Ambient Light Sensor Clearance.............................................................................................5
Cable Length................................................................................................................................5
Cleaning.......................................................................................................................................5
Avoiding Image Retention...........................................................................................................5
Specifications...................................................................................................................................6
Environmental Characteristics.....................................................................................................6
Mechanical Characteristics..........................................................................................................6
Optical Characteristics.................................................................................................................7
Safety and EMI ............................................................................................................................7
Reliability and Backlight Life......................................................................................................7
Interfacing and Operation................................................................................................................8
Control Basics..............................................................................................................................8
Power Requirements................................................................................................................8
Undervoltage Lockout (Backlight only) ..................................................................................8
Power Sequencing (LCD only)................................................................................................8
Backlight Signals.....................................................................................................................9
Video Signals.............................................................................................................................10
Video Signal Characteristics.................................................................................................10
Video Modes ..........................................................................................................................10
Signal Timing.........................................................................................................................11
Video Characteristics.................................................................................................................15
Pixel Position.........................................................................................................................16
Connectors .................................................................................................................................16
Video Connector (J3).............................................................................................................17
Dimming Connector (J2).......................................................................................................18
Backlight Power Connector (J1)...........................................................................................18
Optical Features.............................................................................................................................19
Viewing Angle...........................................................................................................................19
Response Times.........................................................................................................................19
Dimming ....................................................................................................................................19
Backlight Dimming Modes ....................................................................................................20
Dimming Control Interfacing................................................................................................20
Inverting the Display..................................................................................................................21
Temperature Considerations......................................................................................................22
Thermal Shutdown.................................................................................................................22
Luminance Variation Due to Ambient Temperature .............................................................22
Warm-up Characteristic........................................................................................................23
Display Dimensions.......................................................................................................................23

LC640.480.33-AC Operations Manual (OM600-01)2
Figures
Figure 1. Mounting Options.........................................................................................................4
Figure 2. Power Sequencing........................................................................................................9
Figure 3. VLSupply Dropouts. ....................................................................................................9
Figure 4. Image centering. .........................................................................................................10
Figure 5. Timing Diagram, 480-line mode. ...............................................................................12
Figure 6. Timing Diagram, 400-line mode. ...............................................................................13
Figure 7. Timing Diagram, 350-line mode. ...............................................................................14
Figure 8. Pixel position of input data (480-line mode)..............................................................16
Figure 9. Connector Locations...................................................................................................16
Figure 10. Viewing Angles........................................................................................................19
Figure 11. Response Times........................................................................................................19
Figure 12. Dimming Control Methods.......................................................................................20
Figure 13. Luminance vs. Temperature.....................................................................................22
Figure 14. Warmup Curve. ........................................................................................................23
Figure 15. Display Dimensions..................................................................................................24
Tables
Table 1. Mounting Hardware.......................................................................................................4
Table 2. Environmental Characteristics.......................................................................................6
Table 3. Mechanical Characteristics............................................................................................6
Table 4. Optical Characteristics...................................................................................................7
Table 5. Backlight Life................................................................................................................7
Table 6. Input Power....................................................................................................................8
Table 7. Backlight Signal DC Characteristics.............................................................................9
Table 8. Video Signal DC Characteristics.................................................................................10
Table 9. Video Modes................................................................................................................10
Table 10. Video signal timing....................................................................................................11
Table 11. Vertical mode video signal timing.............................................................................11
Table 12. Video Data Color/Grayscale Map .............................................................................15
Table 13. Video Connector (J3) Pinouts. ..................................................................................17
Table 14. Dimming Connector (J2) Pinouts..............................................................................18
Table 15. Backlight Power Connector (J1) Pinouts...................................................................18
Table 16. Backlight Dimming Modes........................................................................................20
Table 17. Inverting the Display. ................................................................................................21

LC640.480.33-AC Operations Manual (OM600-01) 3
LC640.480.33-AC Display
The LC640.480.33-AC is a 1000 nit 10.4" diagonal VGA color AMLCD flat panel
display module intended for commercial applications requiring outdoor viewability and
long life. Special attention to the total backlight design gives the display a wide, “single-
BEF” viewing angle while maintaining luminance efficiency greater than 45 nit/W.
The display is convection cooled and does not require a fan, yet features a wide
operating temperature range. It is lightweight, compact, and rugged, and includes an
integrated inverter in a package approximately one inch thick. With fast cell response
and an 18-bit (6 bits per color) video interface, this display can show full motion video
images.
The LC640.480.33-AC is designed, tested, and characterized as an integrated system
made up of two subassemblies. The LCD subassembly includes a sealed optical cavity,
and the backlight/inverter subassembly includes a cold cathode fluorescent (CCFL)
backlight and inverter. Due to the sealed optical cavity, the backlight subassembly may
be replaced without exposing the back of the LCD cell and optical films to airborne
contaminants.
Features and Benefits
♦1000 nit typical luminance for sunlight-readability
♦3:1 contrast @ 100K Lux ambient for outdoor daylight use
♦Wide +40/-60° vertical / ±70° horizontal viewing angle
♦100:1 digital dimming for efficient control over a wide range of ambient light
♦18-bit (6 bits per color) display interface for wide color range (262,144 colors)
♦30,000 hours MTBF for long service-free operating life
♦Durable and lightweight enclosure for rugged conditions
♦Convection cooling for operation without cooling fans
♦3H diffuse hard coated front surface for scratch protection
♦Modular design for easy field replacement of backlight and inverter
♦Automatic shutdown at low and high temperature extremes for product safety

LC640.480.33-AC Operations Manual (OM600-01)4
Installation and Handling
Do not drop, bend, or flex the display. Do not allow objects to strike the surface of the
display.
Mounting the Display
To maximize shock and vibration performance, the display must be properly mounted
using all four mounting hole locations. There are two recommended mounting
configurations as shown in Figure 1using the hardware listed in Table 1below.
Appropriate changes to these mounting configurations may be needed to meet specific
requirements or applications.
Figure 1. Mounting Options.
Table 1. Mounting Hardware.
Screw #6 SS, hex head or hex washer head, or M3 SS hex head
or hex washer head
Washer Bearing washer for display face down bearing
application only Lockwasher, external type
Tightening torque 4 oz-in \ 2.8x105dyne – cm
Mounting Display Face Down
Standoff spacers with a minimum height of 0.102" (2.59 mm) must be used at all four
mounting locations to prevent binding and deflection of the display. Threaded studs
anchored in a bezel would be a design variation of this mounting option.
Mounting ECA Face Down
When mounting the display with the mounting screws installed from the viewing side, it
is not necessary to incorporate a flat washer. Provide for proper vent clearance and an air
gap/isolation allowance of 0.197" (5 mm) or better as described below.
Display Face Down ECA Face Down

LC640.480.33-AC Operations Manual (OM600-01) 5
Vent Clearance
The LC640.480.33-AC display is a wide temperature display utilizing convection
cooling. It is imperative to allow ambient air unrestricted access to the cooling vents in
order to reliably operate the display at high temperatures
The vents for the lamp cavity are along the top and bottom edges of the display with the
openings facing the rear. The vents for the inverter cavity are along the top and bottom
faces of the display: four along the top surface and four along the bottom surface. Refer
to the mechanical outline drawing in Figure 15 for vent locations.
Isolation/Air Gap
The display generates high voltage AC to drive the CCFL tubes. High voltage is present
at numerous points on the backlight/inverter ECA which forms the rear surface of the
display, so your application should not place metal too near the ECA. In the interests of
both high voltage isolation and airflow for cooling, it is recommended that an air gap of
.197" (5 mm) or greater be maintained behind the display.
Ambient Light Sensor Clearance
Two backlight dimming modes utilize automatic brightness control (ABC). If the display
is to be operated in either of these modes, the ambient light sensor located on the front
bezel must be unobstructed. If the sensor is placed behind the same protective window as
the display active (viewing) area, the sensor operation may be affected due to light
scattering and reflections from display-generated light coupling to the sensor via the
window.
Cable Length
Due to the high frequencies present on the video interface, unterminated video cable
lengths of more than two feet (600 mm) are discouraged.
Cleaning
Care should be taken to minimize scratching. Clean the display front with a dry, soft
cloth such as a professional photographic lens cleaner. Disposable cleaning cloths are
recommended to minimize the risk of inadvertently scratching the display with particles
embedded in a re-used cloth. Particular care should be taken when cleaning displays with
polarizers or anti-glare and anti-reflective films. These films may delaminate if exposed
to certain chemicals.
Avoiding Image Retention
Image retention may occur when a fixed pattern is displayed for a long time. Use a
screen saver or image inversion to avoid image retention on the display.

LC640.480.33-AC Operations Manual (OM600-01)6
Specifications
Performance characteristics are guaranteed with the display at room temperature (25 °C)
and with the operating voltage within specifications, unless otherwise specified. Optical
performance is referenced to screen center at normal incidence and with the backlight at
maximum luminance unless otherwise specified.
Environmental Characteristics
Table 2. Environmental Characteristics.
Temperature
Operating
Operating survival
Storage
-10 to +70 °C
-20 to +80 °C
-25 to +85 °C
Humidity
Operating 95% RH @ 40 ºC, Non-condensing, per IEC 68-2-3
Altitude
Operating 10K ft per IEC 68-2-13
Non-operating 40K ft per IEC 68-2-13
Vibration (random)
Operating 0.02 g2/Hz, 5-500 Hz, 30 min. ea. axis, per IEC 68-2-34
Shock
Operating 100 g, 6 ms, half sine wave, 3 shocks per surface, per IEC 68-2-27
Mechanical Characteristics
Refer to mechanical outline drawing in Figure 15 on page 24.
Table 3. Mechanical Characteristics.
Display External Dimensions (millimeters (inches))
width
height
depth
272.3 (10.72) nominal
199.9 (7.87) nominal
27.0 (1.06) nominal
Weight (typical)
900 g (31.7oz)
Display Active Area (millimeters (inches))
width
height 211.2 (8.31) nominal 158.4 (6.24) nominal
Pixel Pitch (millimeters (inches))
width
height .33 (.0129) nominal .33 (.0129) nominal

LC640.480.33-AC Operations Manual (OM600-01) 7
Optical Characteristics
Table 4. Optical Characteristics.
Luminance
Typical
Minimum 1000 NITs at screen center, initial 900 NITs at screen center, initial
Contrast Ratio
Dark room ambient
500 Lux ambient
3K Lux ambient
100K Lux ambient
200: 1 typical, 150:1 minimum
150:1 typical
50:1 typical
3:1 typical
Color Coordinates
White field x = .339 typical
y = .353 typical
Luminance Non-uniformity
31% maximum With a white screen, max difference between any 2 of 5
points is defined as follows:
Lnu(%) = (1- (Lmin/Lmax)) x 100%
Luminance Control (typical)
Dimming range 50:1 initial, 100:1 stabilized (Lmax after > 15 minutes
at max. lum., then Lmin at min. lum; dimming range =
Lmax/Lmin)
Ambient Light Sensor
Response
Field of view
Dynamic range
Visible light filtered ~420 to 675nm @ 50% pts.
±50 degrees typical to half sensitivity
0 to 3000 Lux typ.; assumes 18% scene reflectance
Viewing Angle
Horizontal
Vertical ±70 degrees typ., White/black CR ≥5
+40/-60 degrees typ., White/black CR ≥5
(See Figure 10)
Safety and EMI
The display will not inhibit the end product from compliance with UL1950, CSA22.2,
and IEC950.The display will not inhibit the end product from complying with FCC Part
15, Subpart J, Class B or EN55022 Class B when housed in a suitable enclosure.
Reliability and Backlight Life
The demonstrated system MTBF is to be greater than 30,000 hours with a 90%
confidence level at 25 °C. Refer to the following table for backlight life.
Table 5. Backlight Life.
Usage Backlight life (typical to 50% of initial luminance)
Continuous at full luminance 20K hours
Continuous at half luminance 100K hours
Typical use using ABC* 35K hours
* Automatic brightness control

LC640.480.33-AC Operations Manual (OM600-01)8
Interfacing and Operation
Control Basics
Power Requirements
The LC640.480.33-AC display requires two power supplies: +5 Vdc for the LCD logic
and +12 Vdc for the backlight. In Table 6below, the backlight current and power are
referenced to maximum luminance, 25 °C ambient temperature.
Table 6. Input Power
Symbol Min Typ Max Units
Backlight
Backlight voltage VH+10.8 +12.0 +13.2 Vdc
Absolute max. voltage VHMAX 0 – +16 Vdc
Steady state current (VH= +12 Vdc) IH–1.9 2.5 Adc
Peak start-up current (VH= +12 Vdc) IHSU – – 3.5 Adc
Power (VH= +12V) PH– 23 30 W
LCD
LCD voltage VL4.5 +5.0 +5.5 Vdc
Absolute max. voltage VLMAX 0 – 6.0 Vdc
VLpermissible ripple (VL= +5V) ∆VL– – 100 mVpp
Current (VL= +5V) IL– 280 450 mAdc
Power (VL= +5V) PL–1.4 2.3 W
CAUTION: Absolute maximum ratings are those values beyond which damage to
the device may occur.
Undervoltage Lockout (Backlight only)
An undervoltage lockout (UVLO) function is included which disables the backlight
under excessively low VHconditions. The UVLO circuit will disable the backlight at
approximately +8.5 Vdc as VHfalls and will enable the backlight at approximately +9.5
Vdc as VHrises.
Power Sequencing (LCD only)
Certain restrictions on the behavior of the VL(+5 Vdc) source and in the application of
the VLsource relative to the application or removal of the video signals must be
observed. These restrictions are shown in Figure 2, where “Vcc”= VLand “data” = video
signals.

LC640.480.33-AC Operations Manual (OM600-01) 9
Figure 2. Power Sequencing.
data
t3
t2
t1
Vcc
4.5V
4.5V
2.7V
where: t1≤10ms
0< t2≤10ms
0< t3≤1s
Applying video signals before VLis applied may cause a latchup condition. Allowing VL
to remain “on” for a long period of time after video signals are removed—which stops
the cell scanning—may produce a latent image. In addition, there is a restriction
regarding dropouts on the VLsupply as illustrated in Figure 3(“Vcc”= VL). This is
related to the reset circuit for the LCD’s internal logic. If a dip in VLexceeds 10 ms in
duration or VLfalls below 2.7 Vdc then the power sequencing procedure should be
followed.
Figure 3. VLSupply Dropouts.
td
Vcc
4.5V
2.7V
where: td≤10ms
Backlight Signals
The dimming control and /DISABL inputs are analog, though the latter is intended to be
driven from either an open collector device or CMOS logic. The /ABCOFF input is a
CMOS-compatible digital input.
Table 7. Backlight Signal DC Characteristics.
Description Min Max Units Symbol
Absolute max. input voltage -0.3 +5.3 Vdc VIMAX
Dimming input voltage range 0+5.0 Vdc VRLUM
Recommended pot. value 10 100 K ohm RLUM
RLUM HI source current – 600 µA IRLUM
/ABCOFF input +3.6
0
–
+5.0
+1.4
0.5
Vdc
Vdc
mA
VIHA
VILA
IILA
/DISABL input +4.5
0
–
+5.0
+1.0
1.3
Vdc
Vdc
mA
VIHD
VILD
IILD
Note: Incorrect operation of the undervoltage lockout (UVLO) circuit may occur if
the /DISABL input is allowed to operate between VILD and VIHD.

LC640.480.33-AC Operations Manual (OM600-01)10
Video Signals
Video Signal Characteristics
Video signal inputs on J3 are digital inputs and are compatible with CMOS logic.
Table 8. Video Signal DC Characteristics.
Description Symbol Minimum Maximum Units
Absolute Maximum Input Voltage VImax -0.3 VL+ 0.3 Vdc
Low-level Input Voltage VIL 00.3VLVdc
High-level Input Voltage VIH 0.7VLVLVdc
Low-level Input Current1IIL1 – 1 µA
IIL2 – 60 µA
High-level Input Current2IIH1 – 1 µA
IIH2 – 60 µA
1. IIL1 applies to all signals except R/L and U/D. IIL2 applies to signals R/L and U/D.
2. IIH1 applies to all signals except ENAB, U/D, and R/L. IIH2 applies to signals ENAB, U/D,
and R/L.
Video Modes
The video interface automatically recognizes 480-, 400-, and 350-line formats. Mode
recognition depends on the polarity of the sync signals as shown in Table 9.
Table 9. Video Modes.
Mode 480 line 400 line 350 line
Hsync (J3-3) negative negative positive
Vsync (J3-4) negative positive negative
In 400-line and 350-line modes, the screen image will be automatically centered as
shown in Figure 4below.
Figure 4. Image centering.
data period
data invalid period
data invalid period 40 lines
40 lines
400 lines
400 lines mode (TV=449)
data period
data invalid period
data invalid period 65 lines
65 lines
350 lines
350 lines mode (TV=449)

LC640.480.33-AC Operations Manual (OM600-01) 11
Signal Timing
Video signal timing diagrams are shown in Figures 5, 6, and 7. The following table refers
to these diagrams.
Table 10. Video signal timing.
Parameter Symbol Mode Min Typ Max Units
Clock freq 1/Tc all –25.18 28.33 MHz
hi time Tch all 5 – – ns
lo time Tcl all 10 – – ns
Data setup time Tds all 5 – – ns
hold time Tdh all 10 – – ns
Horiz. cycle TH all 30.0 31.78 –µs
sync all 750 800 900 clock
PW THp all 2 96 200 clock
Vertical cycle TV 480 515 525 560 line
sync 400 446 449 480 line
350 447 449 510 line
PW TVp all 1 – 34 line
Horiz.display time THd all 640 640 640 clock
Horiz. to clock THc all 10 – Tc-10 ns
Vsync to Hsync TVh all 0 – TH-THp clock
Enable setup time Tes –5–Tc-10 ns
hold time Tep – 2 640 640 clock
Hsync to Enable THe – 44 – TH-664 clock
Table 11 below summarizes timing for the different vertical modes given typical vertical
sync “cycle” (TV) values. In this table, data for line TVn is displayed as the first top row
on the screen.
Table 11. Vertical mode video signal timing.
Mode Symbol 480 line 400 line 350 line
V-data start TVs 34 34 61
V-data period TVd 480 400 350
V-display start TVn 34 443-TV 445-TV
V-display period – 480 480 480
The LC640.480.33-AC display timing is fundamentally the same as the Sharp
LQ10D421 display. Horizontal display position is determined by the rising edge of the
ENAB signal, and the ENAB signal has no relation to the vertical display position. If
ENAB is permanently low, display starts from the data at “C104” referred to in the
timing diagrams in Figures 5, 6, and 7. ENAB should not be left at a logic high
permanently. In 400 and 350 line modes, data should be at a logic low during the vertical
invalid period.

LC640.480.33-AC Operations Manual (OM600-01)12
Figure 5. Timing Diagram, 480-line mode.
Tcl
Tds Tdh
0.3Vcc
Number of V-data line
Vertical invalid data period
DH479 DH480DH3DH2DH1
TV
TVd
0.3Vcc
Number of line
0.7Vcc
34
Tcp
TVs
TVp
Tcs
TVh
0.3Vcc
0.7Vcc
Vertical invalid data period
THc THd
Horizontal invalid data period
0.7Vcc
Horizontal invalid data period
0.3Vcc
Number of H-data
0.3Vcc
0.3Vcc
TH
D640
D639
D3
D2D1
C1*
12
0.3Vcc
0.3Vcc 0.7Vcc
THc
0.3Vcc 0.3Vcc 0.3Vcc 0.3Vcc
C2* C104*
Number of clock
0.7Vcc
Tc
Tch
THp
* Only when enable terminal is fixed "low"

LC640.480.33-AC Operations Manual (OM600-01) 13
Figure 6. Timing Diagram, 400-line mode.
Tcl
Tds Tdh
0.7Vcc
Number of V-data line
Vertical invalid data period
DH399 DH400DH3DH2DH1
TV
TVd
0.3Vcc
Number of line
0.3Vcc
34
Tcp
TVs
TVp
Tcs
TVh
0.7Vcc
0.7Vcc
Vertical invalid data period
THc THd
Horizontal invalid data period
0.7Vcc
Horizontal invalid data period
0.3Vcc
Number of H-data
0.3Vcc
0.3Vcc
TH
D640
D639
D3
D2D1
C1*
12
0.3Vcc
0.3Vcc 0.7Vcc
THc
0.3Vcc 0.3Vcc 0.3Vcc 0.3Vcc
C2* C104*
Number of clock
0.7Vcc
Tc
Tch
THp
* Only when enable terminal is fixed "low"

LC640.480.33-AC Operations Manual (OM600-01)14
Figure 7. Timing Diagram, 350-line mode.
Tcl
Tds Tdh
0.3Vcc
Number of V-data line
Vertical invalid data period
DH349 DH350DH3DH2DH1
TV
TVd
0.3Vcc
Number of line
0.7Vcc
61
Tcp
TVs
TVp
Tcs
TVh
0.3Vcc
0.7Vcc
Vertical invalid data period
THc THd
Horizontal invalid data period
0.7Vcc
Horizontal invalid data period
0.7Vcc
Number of H-data
0.3Vcc
0.3Vcc
TH
D640
D639
D3
D2D1
C1*
12
0.7Vcc
0.7Vcc 0.3Vcc
THc
0.3Vcc 0.3Vcc 0.3Vcc 0.3Vcc
C2* C104*
Number of clock
0.7Vcc
Tc
Tch
THp
* Only when enable terminal is fixed "low"

LC640.480.33-AC Operations Manual (OM600-01) 15
Video Characteristics
Colors are developed in combination with 6-bit signals (64 steps in grayscale) of each
primary red, green, and blue color. This process can result in up to 262,144 (64x64x64)
colors. The mapping of the eighteen video data inputs is shown in Table 12.
Table 12. Video Data Color/Grayscale Map
Data signal (0: Low level, 1: High level)
Display colors R5 R4 R3 R2 R1 R0 G5 G4 G3 G2 G1 G0 B5 B4 B3 B2 B1 B0
Basic
colors
Black
Blue
Red
Magenta
Green
Cyan
Yellow
White
0 0 0 0 0 0
0 0 0 0 0 0
1 1 1 1 1 1
1 1 1 1 1 1
0 0 0 0 0 0
0 0 0 0 0 0
1 1 1 1 1 1
1 1 1 1 1 1
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
1 1 1 1 1 1
1 1 1 1 1 1
1 1 1 1 1 1
1 1 1 1 1 1
0 0 0 0 0 0
1 1 1 1 1 1
0 0 0 0 0 0
1 1 1 1 1 1
0 0 0 0 0 0
1 1 1 1 1 1
0 0 0 0 0 0
1 1 1 1 1 1
Red
grayscale
Black
dark
↑
↓
bright
Red
0 0 0 0 0 0
0 0 0 0 0 1
0 0 0 0 1 0
↑
↓
1 1 1 1 0 1
1 1 1 1 1 0
1 1 1 1 1 1
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
↑
↓
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
↑
↓
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
Green
grayscale
Black
dark
↑
↓
bright
Green
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
↑
↓
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 1
0 0 0 0 1 0
↑
↓
1 1 1 1 0 1
1 1 1 1 1 0
1 1 1 1 1 1
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
↑
↓
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
Blue
grayscale
Black
dark
↑
↓
bright
Blue
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
↑
↓
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
↑
↓
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0 1
0 0 0 0 1 0
↑
↓
1 1 1 1 0 1
1 1 1 1 1 0
1 1 1 1 1 1

LC640.480.33-AC Operations Manual (OM600-01)16
Pixel Position
The position of pixel data, relative to the color filter orientation and scan direction
inputs is shown in Figure 8. Refer to the timing diagrams in Figures 5, 6, and 7 for
horizontal pixel position (D1 through D640), and for vertical line position (DH1
through DH480).
Figure 8. Pixel position of input data (480-line mode).
D640,DH480
D640,DH1
D1,DH480
D1,DH1 D2,DH1 D3,DH1
D1,DH2 D2,DH2
D1,DH3
RGB
R/L=H
U/D=L
UP
The display image may be rotated 180 degrees using the R/L and U/D signals present
on J3. Refer to Inverting the Display on page 21 for more information.
Connectors
The LC640.480.33-AC display has three connectors on the side of the display. J3 is the
video connector, J2 is the dimming connector, and J1 is the backlight power connector.
Figure 9. Connector Locations.
J2
J1
J3

LC640.480.33-AC Operations Manual (OM600-01) 17
Video Connector (J3)
Video signals and LCD display power (VL) are applied via a polarized 34-pin dual-row 2
mm pitch header with gold plated (30µ") contact surfaces and ejector/latching ears. The
connector is equivalent to a Samtec EHT-117-01-S-D-RA and the recommended mating
cable is a Samtec TCSD-117. Consult your Samtec representative (1-800-SAMTEC9) for
cable and connector options. Note that J3 is electrically and mechanically independent of
the backlight assembly.
Table 13. Video Connector (J3) Pinouts.
Pin
Signal
Description
Pin
Signal
Description
1GND Ground 2CK Dot Clock
3HSync Horiz. Sync 4VSync Vert. Sync
5GND Ground 6R0 Red data (LSB)
7R1 Red data 8R2 Red data
9R3 Red data 10 R4 Red data
11 R5 Red data (MSB) 12 GND Ground
13 G0 Green data (LSB) 14 G1 Green data
15 G2 Green data 16 G3 Green data
17 G4 Green data 18 G5 Green data (MSB)
19 GND Ground 20 B0 Blue data (LSB)
21 B1 Blue data 22 B2 Blue data
23 B3 Blue data 24 B4 Blue data
25 B5 Blue data (MSB) 26 GND Ground
27 ENAB1Enable128 VLLCD Power
29 VLLCD Power 30 GND Ground
31 R/L2Horiz. Scan232 U/D3Vert. Scan3
33 GND Ground 34 GND Ground
Ground (GND) is isolated from the display metal bezel.
1 Do not keep ENAB at a static high level.
2Default is logic high or open connection. Reverse scan direction is logic low.
3Default is logic low or open connection. Reverse scan direction is logic high.

LC640.480.33-AC Operations Manual (OM600-01)18
Dimming Connector (J2)
A dimming voltage or potentiometer, plus optional backlight mode and disable logic
inputs are applied via J2, which is a polarized 5-pin inline, 2.5 mm pitch header, tin
plated with a friction lock. The connector is equivalent to the Molex 5268-NA ‘SPOX’
series, part number 22-05-7055. The recommended mating connector is a Molex 5264-N
series housing, part number 50-37-5053 and Molex 5263 series crimp pin, part number
08-70-1040. The recommended wire size is 22-28 AWG stranded. Refer to on page 19
for more information.
Table 14. Dimming Connector (J2) Pinouts.
Pin Symbol Function
1RLUM HI Pot high side voltage source output
2VRLUM Analog dimming input
3GND Signal ground (return)
4/ABCOFF Automatic brightness control mode
disable input
5/DISABL Backlight disable input
Backlight Power Connector (J1)
Backlight power (VH) is applied via J1, which is a polarized 3 pin, 3mm pitch header
with gold plated (15µ") contact surfaces and a release latch. J1 is equivalent to a Molex
43650-0301 (“Micro-Fit 3.0” series). The recommended mating connector is a Molex
part number 43645-0300 (housing) and Molex part number 43030-0008 (crimp pin). The
recommended wire size is 20 AWG stranded.
Table 15. Backlight Power Connector (J1) Pinouts.
Pin Symbol Function
1GND Power ground
2VHBacklight power
3GND Power ground
Note: Power Ground (GND) is isolated from the display metal bezel. All signals
and power on the backlight are also isolated from the J3-related AMLCD display
circuits.