CFAG320240CX-TFH-T CFAG320240CX CFAG320240C S1D13700F01 S1D13700 - Datasheet Archive

 

GRAPHICS LCD MODULE SPECIFICATIONS Crystalfontz Model Number CFAG320240CX-TFH-T Hardware Version Revision A, September 2006 Data

 

Crystalfontz America, Incorporated GRAPHICS LCD MODULE SPECIFICATIONS Crystalfontz Model Number CFAG320240CX-TFH-T CFAG320240CX-TFH-T Hardware Version Revision A, September 2006 Data Sheet Version Revision 1.0, September 2006 Product Pages www.crystalfontz.com/products/320240cx Customer Name Customer Part Number Crystalfontz America, Incorporated 12412 East Saltese Avenue Spokane Valley, WA 99216-0357 Phone: Fax: Email: URL: (888) 206-9720 (509) 892-1203 techinfo@crystalfontz.com www.crystalfontz.com Crystalfontz America, Inc. www.crystalfontz.com September 2006 CFAG320240CX-TFH-T CFAG320240CX-TFH-T Graphics LCD Module Data Sheet Hardware vA / Data Sheet v1.0 Page 2 REVISION HISTORY HARDWARE 2006/09/15 Current Hardware Version: vA CFAG320240CX-TFH-T CFAG320240CX-TFH-T and the other CFAG320240CX CFAG320240CX variants are RoHS compliant.The CFAG320240CX CFAG320240CX series replaces the CFAG320240C CFAG320240C series which was not RoHS compliant. For information about the difference between these series, see APPENDIX C: COMPARISON OF CFAG320240CX CFAG320240CX SERIES WITH OBSOLETE CFAG320240C CFAG320240C SERIES (Pg. 29) DATA SHEET 2006/09/15 Data Sheet Version: v1.0 New Data Sheet. Crystalfontz America, Inc. www.crystalfontz.com September 2006 CFAG320240CX-TFH-T CFAG320240CX-TFH-T Graphics LCD Module Data Sheet Hardware vA / Data Sheet v1.0 Page 3 CONTENTS MAIN FEATURES - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4 Module Classification Information - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4 Ordering Information - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5 MECHANICAL SPECIFICATIONS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5 Physical Characteristics - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 5 ELECTRICAL SPECIFICATIONS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7 System Block Diagram - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7 Driving Method - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8 Absolute Maximum Ratings - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8 DC Characteristics - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8 Interface Pin Functions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 9 Typical VO Connections for Display Contrast - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 10 Jumper Functions and Locations - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 10 Epson S1D13700F01 S1D13700F01 Controller Interface - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11 OPTICAL SPECIFICATIONS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 12 Conditions and Definitions for Optical Characteristics - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 12 Definition Operation Voltage (Vop) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 12 Definition of Response Time (Tr, Tf) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 13 Definition of Vertical and Horizontal Viewing Angles (CR>2) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 13 Definition of 6 O'Clock and 12:00 O'Clock Viewing Angles - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 14 LED BACKLIGHT - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 14 PRODUCT RELIABILITY- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 16 CARE AND HANDLING PRECAUTIONS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 16 APPENDIX A: QUALITY ASSURANCE STANDARDS- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 19 APPENDIX B: C+ INITIALIZATION CODE EXAMPLE - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 23 APPENDIX C: COMPARISON OF CFAG320240CX CFAG320240CX SERIES WITH OBSOLETE CFAG320240C CFAG320240C SERIES - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 29 APPENDIX D: EPSON S1D13700F01 S1D13700F01 LCD CONTROLLER HARDWARE FUNCTIONAL SPECIFICATION- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 30 APPENDIX E: JST DATA SHEET FOR "XH-3P" BACKLIGHT CONNECTOR- - - - - - - - - - - - - - - - - - - - 31 LIST OF FIGURES Figure 1. CFAG320240CX-TFH-T CFAG320240CX-TFH-T Module Outline Drawing - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 6 Figure 2. System Block Diagram - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7 Figure 3. Typical VO Connections (External Control or On-Board Potentiometer) - - - - - - - - - - - - - - - - - - 10 Figure 4. Jumper Locations and Functions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 11 Figure 5. Definition of Operation Voltage (VOP) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 12 Figure 6. Definition of Response Time (Tr, Tf) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 13 Figure 7. Definition of Horizontal and Vertical Viewing Angles (CR>2)- - - - - - - - - - - - - - - - - - - - - - - - - - 13 Figure 8. Definition of 6:00 O'Clock and 12:00 O'Clock Viewing Angles - - - - - - - - - - - - - - - - - - - - - - - - 14 Figure 9. Typical LED Backlight Connections for "Always On" - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 15 Figure 10. Typical LED Backlight Connections for PWM Dimming - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 16 Crystalfontz America, Inc. www.crystalfontz.com September 2006 CFAG320240CX-TFH-T CFAG320240CX-TFH-T Graphics LCD Module Data Sheet Hardware vA / Data Sheet v1.0 Page 4 MAIN FEATURES 320 x 240 pixels graphic LCD module has a large display area in a compact 148.02 (W) x 120.24 (H) x 15.6 (D) millimeter package (5.83" (W) x 4.73" (H) x .61" (D). 8-bit parallel interface. Industry standard Epson S1D13700 S1D13700 controller (See Appendix C, page 30). RoHS compliant. White edge LED backlit with FSTN (light color glass), positive transflective mode LCD (displays dark dots on light gray background). Wide temperature operation: -20 °C to +70°C. Sunlight readable. MODULE CLASSIFICATION INFORMATION CFA G 3 2 0 240 CX - T F H - T Brand Crystalfontz America, Inc. Display Type G ­ Graphic Number of Dots (Width) 320 pixels Number of Dots (Height) 240 pixels Model Identifier CX Backlight Type & Color T ­ LED, white Fluid Type, Image (positive or negative), & LCD Glass Color F ­ FSTN, positive Polarizer Film Type, Wide (WT) Temperature Range, & View Angle (O `Clock) Special Code H ­ Transflective, WT, 6:001 T ­ Temperature Compensation Circuit2 1 For more information on View Angle, see Definition of 6 O'Clock and 12:00 O'Clock Viewing Angles (Pg. 14). 2 To maintain a good contrast, the temperature compensation circuit adjusts the supply voltage automatically as the ambient temperature changes. Crystalfontz America, Inc. www.crystalfontz.com September 2006 CFAG320240CX-TFH-T CFAG320240CX-TFH-T Graphics LCD Module Data Sheet Hardware vA / Data Sheet v1.0 Page 5 ORDERING INFORMATION PART NUMBER FLUID LCD GLASS COLOR IMAGE POLARIZER FILM CFAG320240CX-TFH-T CFAG320240CX-TFH-T FSTN light positive transflective white edge LEDs CFAG320240CX-FMI-T CFAG320240CX-FMI-T STN blue negative transmissive white edge CCFLs CFAG320240CX-TFH-T-TS CFAG320240CX-TFH-T-TS FSTN light positive transflective white edge LEDs CFAG320240CX-TMI-T CFAG320240CX-TMI-T STN blue negative transmissive white edge LEDs CFAG320240CX-TTI-T CFAG320240CX-TTI-T FSTN dark negative transmissive white edge LEDs CFAG320240CX-YMI-T CFAG320240CX-YMI-T STN blue negative transmissive yellow-green edge LEDs CFAG320240CX-YYH-T CFAG320240CX-YYH-T STN yellow-green positive transflective yellow-green edge LEDs BACKLIGHTS Additional Variants Available: MECHANICAL SPECIFICATIONS PHYSICAL CHARACTERISTICS ITEM SIZE Number of Dots 320 x 240 pixels Module Dimensions 148.02 (W) x 120.24 (H) x 15.6 (D) mm Viewing Area 120.14 (W) x 92.14 (H) mm Active Area 115.18 (W) x 86.38 (H) mm Dot Size .34 (W) x .34 (H) mm Dot Pitch .36 (W) x .36 (H) mm Weight 244 grams (maximum) Figure 1. CFAG320240CX-TFH-T CFAG320240CX-TFH-T Module Outline Drawing 4.02 7.11 105.4 120.24+0.5 2 VDD 1 VDD VSS VSS 3 VO VO 4 RD E 5 WR R/W 6 8 9 10 11 12 13 14 www.crystalfontz.com/products/320240cx White LED Backlight (no touch screen) PIN 3 PIN 1 RES RES 16 VEE VEE 17 19 20 10.5 Crystalfontz America, Incorporated Copyright © 2006 Alexis DRAWN BY: 1.6 0.36 0.34 2006/09/15 DATE: 320240CXP01T 320240CXP01T SHEET: 1 of 1 vA REVISION: Gap is .2 Dot Dimensions (Not to scale) DRAWING NUMBER: FGND DISP0FF WAIT FGND DISP0FF WAIT 18 20-Ø1.0 PTH 20-Ø1.8 Pad LED Backlight Cable 1=1 CS CS 15 15.6 Maximum JST Connector "XH-3P" Millimeters UNITS: SCALE: DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 7 2 1 22.86 21.06 (P2.54 x 9) CFAG320240CX CFAG320240CX -TFH, -TMI, -TTI AO AO 148.02+0.5 20 19 115.18 Active Area 16.45 Crystalfontz America, Incorporated 6800 mode 8080 mode Pins 13.74 92.14 Viewing Area 4-Ø6.0 Pad 4-Ø3.5 PTH 16.62 86.38 Active Area 112.2 139.98 136.2 120.14 Viewing Area 2.54 5.0 4.02 4.44 13.97 0.36 0.34 Tolerance is +0.3mm unless specified Crystalfontz America, Inc. www.crystalfontz.com September 2006 CFAG320240CX-TFH-T CFAG320240CX-TFH-T Graphics LCD Module Data Sheet Hardware vA / Data Sheet v1.0 Page 6 MECHANICAL DRAWING Crystalfontz America, Inc. www.crystalfontz.com September 2006 CFAG320240CX-TFH-T CFAG320240CX-TFH-T Graphics LCD Module Data Sheet Hardware vA / Data Sheet v1.0 Page 7 ELECTRICAL SPECIFICATIONS SYSTEM BLOCK DIAGRAM Epson S1D13700 S1D13700 Controller DB0~DB7 CS RES CL1 M FLM Com1~80 Driver RD WR A0 Com81~160 Driver MPU VDD VR 20K VO Com161~240 Driver K Power ON Reset LED Backlight Seg1~80 Driver Bias and Power Circuit A 320 x 240 Dots Seg81~1600 Driver pot VEE CL2 DB0~DB3 Negative Voltage Generator Frame PAD Optional external contrast adjustment. On-board contrast adjustment uses potentiometer. Figure 2. System Block Diagram FGND Seg161~240 Driver Seg241~320 Driver Crystalfontz America, Inc. www.crystalfontz.com September 2006 CFAG320240CX-TFH-T CFAG320240CX-TFH-T Graphics LCD Module Data Sheet Hardware vA / Data Sheet v1.0 Page 8 DRIVING METHOD DRIVING METHOD SPECIFICATION Duty 1/240 Bias 1/16 SYMBOL MINIMUM MAXIMUM ABSOLUTE MAXIMUM RATINGS Operating Temperature* TOP -20° C +70° C Storage Temperature* TST -30° C +80° C VI 0 VDD Supply Voltage for Logic VDD 0 6.5v Supply Voltage for LCD VDD­VO ABSOLUTE MAXIMUM RATINGS Input Voltage 32.0v *Note: Prolonged exposure at temperatures outside of this range may cause permanent damage to the module. Supply voltage for driving LCD TA = -20º C VDD - VO MAXIMUM TYPICAL DC CHARACTERISTICS MINIMUM SYMBOL DC CHARACTERISTICS +25.0v TA = +25º C +23.8v TA = +70º C +23.0v Logic Voltage VI +4.75v Input High Voltage VIH +0.5VDD VDD Input Low Voltage VIL VSS +0.2VDD IDD 65.0mA Supply Current (Logic only, not including backlight) V = +5.0v +5.0v 75.0mA +5.25v 80.0 mA Crystalfontz America, Inc. www.crystalfontz.com September 2006 CFAG320240CX-TFH-T CFAG320240CX-TFH-T Graphics LCD Module Data Sheet Hardware vA / Data Sheet v1.0 Page 9 PIN SIGNAL LEVEL DIRECTION INTERFACE PIN FUNCTIONS 1 VSS 0v ­ Ground 2 VDD +5.0v ­ Supply voltage for logic 3 VO variable ­ Supply voltage for driving LCD VO = -18.8v typical at VDD = +5v which gives a VLCD = (VDD - VO) = 23.8v 6800 mode E H/L I 0 = No operation 1 = Enable for Read or Write 8080 mode RD H/L I 1 = No operation 0 = Read 6800 mode R/W H/L 8080 mode WR H/L I 1 = No operation 0 = Write 6 A0 H/L I R/W = L A0 = H: Command Write A0 = L: Data Write R/W = H A0 = H: Status Read A0 = Data Read 7 DB0 H/L I/O Data bit 0 8 DB1 H/L I/O Data bit 1 9 DB2 H/L I/O Data bit 2 10 DB3 H/L I/O Data bit 3 11 DB4 H/L I/O Data bit 4 12 DB5 H/L I/O Data bit 5 13 DB6 H/L I/O Data bit 6 14 DB7 H/L I/O Data bit 7 15 CS H/L I DESCRIPTION 4 1 = Read 0 = Write 5 Chip select, Active L CFAG320240CX-TFH-T CFAG320240CX-TFH-T Graphics LCD Module Data Sheet Hardware vA / Data Sheet v1.0 Page 10 PIN SIGNAL LEVEL DIRECTION Crystalfontz America, Inc. www.crystalfontz.com September 2006 16 RES H/L I Controller reset signal, Active L 17 VEE -25v O Negative voltage output 18 FGND 19 DISPOFF 20 WAIT DESCRIPTION Frame ground H/L I H: Display L: No Display O S1D13700F01 S1D13700F01 controller busy status. See APPENDIX D: EPSON S1D13700F01 S1D13700F01 LCD CONTROLLER HARDWARE FUNCTIONAL SPECIFICATION (Pg. 30) For backlight connections, please refer to LED BACKLIGHT (Pg. 14). TYPICAL VO CONNECTIONS FOR DISPLAY CONTRAST Adjust VO to -18.8v (VLCD = 23.8v) as an initial setting. When the module is operational, readjust VO for optimal display appearance. Using External Control VDD (+5v) Using On-Board Potentiometer VDD (+5v) VDD VDD VR 10 k VLCD NC VO VO pot pot VEE Set potentiometer to center of travel. Use external control to adjust for optimal display appearance. NC VEE Adjust potentiometer for optimal display appearance. Figure 3. Typical VO Connections (External Control or On-Board Potentiometer) JUMPER FUNCTIONS AND LOCATIONS The JF1 jumper connects the mounting holes to the bezel's grounding tabs. The JF2 connects signal ground to the bezel's grounding tabs. VR1 is a potentiometer. It can be used to adjust the module contrast. Crystalfontz America, Inc. www.crystalfontz.com September 2006 CFAG320240CX-TFH-T CFAG320240CX-TFH-T Graphics LCD Module Data Sheet Hardware vA / Data Sheet v1.0 Page 11 This module can be set to "6800" or "8080" interface mode. Crystalfontz ships the module in the "6800" mode. The J68 / J80 jumper is used to make these settings. The J68 / J80 jumper has three solder points. In the "6800" mode, the left and middle solder points are closed. The module can be changed to the "8080" mode by removing the solder between the left and middle solder points and closing the right and middle solder points. 8080 mode VR1 6800 mode EPSON J68 J80 01370001A1 01370001A1 F05400110 F05400110 JAPAN JF2 JF1 CON1 2 1 20 19 JF1 Connects mounting holes to bezel grounding tabs. JF2 Connects signal ground to bezel grounding tabs. J68 / J80 Controller timings for "6800" and "8080" mode interface. VR1 Contrast potentiometer for temperature compensated contrast circuit. Figure 4. Jumper Locations and Functions EPSON S1D13700F01 S1D13700F01 CONTROLLER INTERFACE The CFAG320240CX-TFH-T CFAG320240CX-TFH-T uses an Epson S1D137700F01 S1D137700F01 controller. For your reference, the EpsonS1D13700F01 Embedded Memory Graphics LCD Controller Hardware Functional Specification is included as an appendix to this Data Sheet. Here are links to some of the commonly used sections: DC Characteristics (see in Appendix D, page 22). Indirect Addressing (see in Appendix D, page 69). Character Generator (see in Appendix D, page 94.) Register Initialization/Initialization Parameters (see in Appendix D, page 100). To learn about the differences between the Epson S1D13700F01 S1D13700F01 controller in the CFAG320240CX-TFH-T CFAG320240CX-TFH-T and the Epson S1D13305 S1D13305 controller that was part of our earlier CFAG320240C CFAG320240C series, see Appendix C, page 29. Crystalfontz America, Inc. www.crystalfontz.com September 2006 CFAG320240CX-TFH-T CFAG320240CX-TFH-T Graphics LCD Module Data Sheet Hardware vA / Data Sheet v1.0 Page 12 View Angle* (Vertical, Horizontal) CR>2 36° 60° (H) CR>2 -45° +45° MAXIMUM (V) SYMBOL TYPICAL MINIMUM ITEM CONDITION OPTICAL SPECIFICATIONS Contrast Ratio CR 5 LCD Response Time* T rise 200 ms 300 ms T fall 150 ms 200 ms *Response Time: The amount of time it takes a liquid crystal cell to go from active to inactive or back again. CONDITIONS AND DEFINITIONS FOR OPTICAL CHARACTERISTICS Operating Voltage (VLCD): VOP Viewing Angle Vertical (V): 0° Horizontal (H): 0° Frame Frequency: 64 Hz Driving Waveform: 1/240 Duty, 1/16 Bias Intensity Definition Operation Voltage (Vop) Selected Wave 100% Non-selected Wave CR Maximum CR = Lon / Loff Vop Lon = Luminance of ON segments Loff = Luminance of OFF segments Driving Voltage (V) Figure 5. Definition of Operation Voltage (VOP) Crystalfontz America, Inc. www.crystalfontz.com September 2006 CFAG320240CX-TFH-T CFAG320240CX-TFH-T Graphics LCD Module Data Sheet Hardware vA / Data Sheet v1.0 Page 13 Definition of Response Time (Tr, Tf) Unselected State Selected State Unselected State Light Transmitted Intensity 10% 90% 100% Light Blocked Tf Tr Tr = Rise Time Tf = Fall Time Figure 6. Definition of Response Time (Tr, Tf) Definition of Vertical and Horizontal Viewing Angles (CR>2) Vertical Horizontal Figure 7. Definition of Horizontal and Vertical Viewing Angles (CR>2) Crystalfontz America, Inc. www.crystalfontz.com September 2006 CFAG320240CX-TFH-T CFAG320240CX-TFH-T Graphics LCD Module Data Sheet Hardware vA / Data Sheet v1.0 Page 14 Definition of 6 O'Clock and 12:00 O'Clock Viewing Angles A 6:00 o'clock viewing angle is a bottom viewing angle like what you would see when looking at a cell phone or calculator. A 12:00 o'clock viewing angle is a top viewing angle like what you would see when looking at the gauges in a golf cart or airplane. Eyes look down Eyes look up 6:00 O'clock Bottom Viewing Angle 12:00 O'clock Top Viewing Angle Figure 8. Definition of 6:00 O'Clock and 12:00 O'Clock Viewing Angles LED BACKLIGHT The CFAG320240CX-TFH-T CFAG320240CX-TFH-T has a "pigtail" installed for the backlight cable connection. The pigtail uses a JST "XHP-3" connector. The mating connector for your PCB is "B 3B-XH-A", "S 3B-XH-A-1", or "S 3B-XH-A". For more information, see APPENDIX E: JST DATA SHEET FOR "XH-3P" BACKLIGHT CONNECTOR (Pg. 31). NOTE Caution: the connector on the LED pigtail will mate with our CFAICCFL1 inverter, but it is NOT electrically compatible. If you connect the pigtail to the CCFL inverter (purchased separately), damage may occur to the module, the CFAICCFL1, or both. NOTE We recommend that the backlight of the white LED backlit modules be dimmed or turned off during periods of inactivity to conserve the white LED backlight lifetime. Crystalfontz America, Inc. www.crystalfontz.com September 2006 CFAG320240CX-TFH-T CFAG320240CX-TFH-T Graphics LCD Module Data Sheet Hardware vA / Data Sheet v1.0 Page 15 Backlight Characteristics Dark dots on illuminated light gray background PARAMETER MINIMUM TYPICAL MAXIMUM Forward Current (ILED) V = 3.5 140 mA 160 mA 200 mA Forward Voltage (VLED) +3.4v +3.5v +3.6v Reverse Voltage (VR) +5v Luminous Intensity* (IV) ILED = 160 mA 200 cd/m2 250 cd/m2 *Direct measurement of backlight­the backlight is not measured through the LCD. CFAG320240CX-TFH-T CFAG320240CX-TFH-T uses LED backlights. LED backlights are easy to use properly but they are also easily damaged by abuse. NOTE Do not connect +5v directly to the backlight terminals.This will ruin the backlight. LEDs are "current" devices. The LED's brightness is controlled by the current flowing through it, not the voltage across it. Ideally, a current source would be used to drive the LEDs. In practice, a simple current limiting resistor will work well in most applications and is much less complex than a current source. You need to know what the supply (forward) voltage of the LEDs will be so you can calculate a current limiting resister (RLIMIT). The forward voltage will vary slightly from display to display. +5v ILED RLIMIT LED Backlight A K VLED Figure 9. Typical LED Backlight Connections for "Always On" The general equation to calculate RLIMIT is: RLIMIT (minimum) = VDD (supply voltage) - VLED (LED forward voltage) ILED (maximum LED current) Crystalfontz America, Inc. www.crystalfontz.com September 2006 CFAG320240CX-TFH-T CFAG320240CX-TFH-T Graphics LCD Module Data Sheet Hardware vA / Data Sheet v1.0 Page 16 The specific RLIMIT calculation for the CFAG320240CX-TFH-T CFAG320240CX-TFH-T at VDD = +5v is: R = LIMIT 5v - 4.2v = 33 (minimum) 0.180 A (maximum) The backlight may be dimmed by PWM (Pulse Width Modulation). The typical range for the PWM frequency is from 100 to 300 Hz. +5v ILED RLIMIT LED Backlight A K 1K VLED IRLML2502 IRLML2502 (typical) PWM signal from microcontroller Figure 10. Typical LED Backlight Connections for PWM Dimming PRODUCT RELIABILITY ITEM SPECIFICATION LCD portion (excluding Backlight) 50,000 to 100,000 hours (typical) White LED Backlights* Power-On Hours % of Initial Brightness 90% 50% * We recommend that the backlight of the white LED backlit modules be dimmed or turned off during periods of inactivity to conserve the white LED backlight lifetime. CARE AND HANDLING PRECAUTIONS For optimum operation of the CFAG320240CX-TFH-T CFAG320240CX-TFH-T and to prolong its life, please follow the precautions described below. ESD (ELECTRO-STATIC DISCHARGE) The circuitry is industry standard CMOS logic and susceptible to ESD damage. Please use industry standard antistatic precautions as you would for any other PCB such as expansion cards or motherboards. Crystalfontz America, Inc. www.crystalfontz.com September 2006 CFAG320240CX-TFH-T CFAG320240CX-TFH-T Graphics LCD Module Data Sheet Hardware vA / Data Sheet v1.0 Page 17 DESIGN AND MOUNTING To protect the polarizer from damage, the CFAG320240CX-TFH-T CFAG320240CX-TFH-T ships with a protective film over the LCD glass. Please peel off the protective film slowly. Peeling off the protective film abruptly may generate static electricity. The exposed surface of the LCD "glass" is actually the front polarizer laminated to the glass. Place a transparent plate (for example, acrylic, polycarbonate, or glass) in front of the CFAG320240CX-TFH-T CFAG320240CX-TFH-T, leaving a small gap between the plate and the display surface. We use GE HP-92 HP-92 Lexan, which is readily available and works well. Do not disassemble or modify the CFAG320240CX-TFH-T CFAG320240CX-TFH-T. Do not modify the tab of the metal holder or make connections to it. Solder only to the I/O terminals. Use care when removing solder-it is possible to damage the PCB. Do not reverse polarity to the power supply connections. Reversing polarity will immediately ruin the module. AVOID SHOCK, IMPACT, TORQUE, AND TENSION Do not expose the CFAG320240CX-TFH-T CFAG320240CX-TFH-T to strong mechanical shock, impact, torque, and tension. Do not drop, toss, bend, or twist the CFAG320240CX-TFH-T CFAG320240CX-TFH-T. Do not place weight or pressure on the CFAG320240CX-TFH-T CFAG320240CX-TFH-T. IF LCD PANEL BREAKS If the LCD panel breaks, be careful to not get the liquid crystal fluid in your mouth or eyes. If the liquid crystal fluid touches your skin, clothes, or work surface, wash it off immediately using soap and plenty of water. Do not eat the LCD panel. CLEANING To clean the front of the LCD, moisten a nonabrasive soft cloth with standard household glass cleaner. Gently wipe the glass with the moist cloth. The exposed surface of the LCD "glass" is actually the front polarizer laminated to the glass. The polarizer is made out of a fairly soft plastic and is easily scratched or damaged. The polarizer will eventually become hazy if you do not take great care when cleaning it. Long contact with moisture (from condensation or cleaning) may permanently spot or stain the polarizer. OPERATION We do not recommend connecting this module to a PC's parallel port as an "end product". This module is not "user friendly" and connecting them to a PC's parallel port is often difficult, frustrating, and can result in a "dead" display due to mishandling. For more information, see our forum thread at http://www.crystalfontz.com/forum/ showthread.php?s=&threadid=3257. Your circuit should be designed to protect the CFAG320240CX-TFH-T CFAG320240CX-TFH-T from ESD and power supply transients. Observe the operating temperature limitations: a minimum of -20°C to +70°C maximum with minimal fluctuations. Operation outside of these limits may shorten the life and/or harm the display. At lower temperatures of this range, response time is delayed. At higher temperatures of this range, display becomes dark. (You may need to adjust the contrast.) Adjust backlight brightness so the display is readable but not too bright. Dim or turn off the backlight during periods of inactivity to conserve the white LED backlight lifetime. Operate away from dust, moisture, and direct sunlight. Crystalfontz America, Inc. www.crystalfontz.com September 2006 CFAG320240CX-TFH-T CFAG320240CX-TFH-T Graphics LCD Module Data Sheet Hardware vA / Data Sheet v1.0 Page 18 STORAGE Store in an ESD-approved container away from dust, moisture, and direct sunlight. Observe the storage temperature limitations: a minimum of -30°C minimum to +80°C maximum with minimal fluctuations. Rapid temperature changes can cause moisture to form, resulting in permanent damage. Do not allow weight to be placed on the CFAG320240CX-TFH-Ts while they are in storage. Crystalfontz America, Inc. www.crystalfontz.com September 2006 CFAG320240CX-TFH-T CFAG320240CX-TFH-T Graphics LCD Module Data Sheet Hardware vA / Data Sheet v1.0 Page 19 APPENDIX A: QUALITY ASSURANCE STANDARDS INSPECTION CONDITIONS Environment Temperature: 25±5°C Humidity: 30~85% RH For visual inspection of active display area Source lighting: two 20 Watt or one 40 Watt fluorescent light Display adjusted for best contrast Viewing distance: 30±5 cm (about 12 inches) Viewable angle: inspect at 45° angle of vertical line right and left, top and bottom DEFINITION OF ACTIVE AREA AND VIEWABLE AREA 120.14 Viewing Area 86.38 Active Area 92.14 Viewing Area 115.18 Active Area (Dots) 320 x 240 Dots ACCEPTANCE SAMPLING DEFECT TYPE AQL* Major