LCD_optrex_dmc20434_datasheet

LCD_optrex_dmc20434_datasheet - First Edition Approved by...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: First Edition Approved by Production Div. Aug 28, 1997 Checked by Quality Assurance Div. LCD Module Specification Final Revision Checked by Design Engineering Div. ******* Prepared by Type No. Production Div. DMC20434N Table of Contents 1. General Specifications.................................................................2 2. Electrical Specifications...............................................................3 3. Optical Specifications..................................................................5 4. I/O Terminal..............................................................................7 5. Test..........................................................................................9 6. Appearance Standards................................................................10 7. Code System of Production Lot................................................13 8. Type Number...........................................................................13 9. Applying Precautions................................................................13 10. Handling Precautions................................................................14 Revision History Rev. Date Page Comment XERTPO DMC20434N (AJ) No.97-0208 OPTREX CORPORATION Page 1/14 1. General Specifications Operating Temp. Storage Temp. Display Format Display Fonts Viewing Area Outline Dimensions Weight LCD Type : : : : : : : : min. 0C ~ max. 50C min. 20C ~ max. 70C 20 characters 4 lines 5 8 dots ( 1 character ) 76.0 (W) 25.2 (H) mm 98.5 (W) 60.0 (H) 11.0 max. (D) mm 65g max. NRD-7141 ( STN / Neutral-mode / Reflective ) 6:00 None Dimensional Outline UE-30371B Viewing Angle Backlight Drawings : : : XERTPO DMC20434N (AJ) No.97-0208 OPTREX CORPORATION Page 2/14 2. Electrical Specifications 2.1. Absolute Maximum Ratings VSS=0V Parameter Supply Voltage (Logic) Supply Voltage (LCD Drive) Input Voltage VI -0.3 VCC +0.3 V VCC -VEE 0 6.5 V Symbol VCC -VSS Conditions Min. -0.3 Max. 6.5 Units V 2.2. DC Characteristics Ta=25C, V SS=0V Parameter Supply Voltage (Logic) Supply Voltage (LCD Drive) High Level Input Voltage Low Level Input Voltage High Level Output Voltage Low Level Output Voltage Supply Current ICC VCC -VSS=5.0V 2.3 4.0 mA VOL IOL=1.2mA 0 0.4 V VOH IOH=-0.205mA 2.4 VCC V VIL VCC =5.0V10% 0 0.6 V VIH VCC =5.0V10% 2.2 VCC V VCC -VEE Shown in 3.1 V Symbol VCC -VSS Conditions Min. 4.5 Typ. Max. 5.5 Units V XERTPO DMC20434N (AJ) No.97-0208 OPTREX CORPORATION Page 3/14 2.3. AC Characteristics VCC =5.0V10% Parameter Enable Cycle Time Enable Pulse Width Enable Rise/Fall Time Address Setup Time Address Hold Time Write Data Setup Time Write Data Hold Time Read Data Delay Time Read Data Hold Time VIH VIL Symbol Conditions Fig.1, 2 Fig.1, 2 Fig.1, 2 Fig.1, 2 Fig.1, 2 Fig.1 Fig.1 Fig.2 Fig.2 VIH VIL Min. 500 230 40 10 80 10 5 Max. 20 160 Units ns ns ns ns ns ns ns ns ns tCYC PWEH tEr, tEf tAS tAH tDSW tDHW tDDR tDHR RS tAS tAH R/W VIL PWEH VIL tE r E VIH VIL VIH tE f VIL VIL tDSW VIH VIL tDHW VIH VIL DB0~DB7 Valid Data tCYC Fig.1 Write Operation Timing VIH VIL VIH VIL RS tAS VIH tAH VIH R/W PWEH tE r E VIH VIL VIH tE f VIL VIL tDDR VOH VOL tDHR VOH VOL DB0~DB7 Valid Data tCYC Fig.2 Read Operation Timing XERTPO DMC20434N (AJ) No.97-0208 OPTREX CORPORATION Page 4/14 3. Optical Specifications 3.1. LCD Driving Voltage Parameter Recommended LCD Driving Voltage VCC -VEE Symbol Conditions Ta= 0C Ta=25C Min. 4.2 Typ. 4.5 Max. 5.2 4.8 Units V V Note 1 Ta=50C 4.0 V Note 1 : Voltage (Applied actual waveform to LCD Module) for the best contrast. The range of minimum and maximum shows tolerance of the operating voltage. The specified contrast ratio and response time are not guaranteed over the entire range. 3.2. Optical Characteristics Ta=25C, 1/16 Duty, 1/5 Bias, VD=4.5V (Note 4), = 0, = Parameter Contrast Ratio Viewing Angle Response Rise Note 2 TON Note 1 Symbol CR Conditions = 0, = Min. Typ. 4.5 Max. Units Shown in 3.3 140 210 ms Time Decay Note 3 TOFF 180 270 ms Note 1 : Contrast ratio is definded as follows. CR = L OFF / LON LON : Luminance of the ON segments LOFF : Luminance of the OFF segments Note 2 : The time that the luminance level reaches 90% of the saturation level from 0% when ON signal is applied. Note 3 : The time that the luminance level reaches 10% of the saturation level from 100% when OFF signal is applied. Note 4 : Definition of Driving Voltage V D VD=VCC -VADJ-VBE Assuming that the typical driving waveforms shown below are applied to the LCD Panel at 1/A Duty - 1/B Bias ( A : Duty Number, B : Bias Number ). Driving voltage VD is definded as follows. VD = (Vth1+Vth2) / 2 Vth1 :The voltage VO-P that should provide 50% of the satulation level in the luminance at the segment which the ON signal is applied to. Vth2 :The voltage VO-P that should provide 50% of the satulation level in the luminance at the segment which the OFF signal is applied to. V O-P ( B-2 ) V O-P / B 1 / ( fF A ) 1 / fF (ON SIGNAL) (OFF SIGNAL) XERTPO DMC20434N (AJ) No.97-0208 OPTREX CORPORATION Page 5/14 3.3. Definition of Viewing Angle and Optimum Viewing Area Point q shows the point where contrast ratio is measured. : = 0, = Driving condition : 1/16 Duty, 1/5 Bias, VD=4.5V, fF=46.9Hz 90 135 45 90 180 10 20 30 40 50 (= 0) 180 0 225 270 315 270 Area s h o w s t y p . C R 2 3.4. System Block Diagram Temperature Chamber Rotation Table (,) Photometer #1980A WB LCD Optical Fiber Computer Control Unit & Waveform Generator Halogen bulb XERTPO DMC20434N (AJ) No.97-0208 OPTREX CORPORATION Page 6/14 4. I/O Terminal 4.1. Pin Assignment No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Symbol VSS VCC VEE RS R/W E DB0 DB1 DB2 DB3 DB4 DB5 DB6 DB7 Level H/L H/L H/L H/L H/L H/L H/L H/L H/L H/L H/L Power Supply (0V, GND) Power Supply for Logic Power Supply for LCD Drive Register Select Signal Read/Write Select Signal H : Read L : Write Enable Signal (No pull-up Resister) Data Bus Line / Non-connection at 4-bit operation Data Bus Line / Non-connection at 4-bit operation Data Bus Line / Non-connection at 4-bit operation Data Bus Line / Non-connection at 4-bit operation Data Bus Line Data Bus Line Data Bus Line Data Bus Line Function 4.2. Example of Power Supply It is recommended to apply a potentiometer for the contrast adjust due to the tolerance of the driving voltage and its temperature dependence. VCC VR MODULE VSS VSS (0V) VCC (+Voltage) VEE VR=10~20 K XERTPO DMC20434N (AJ) No.97-0208 OPTREX CORPORATION Page 7/14 4.3. Block Diagram DB7 DB0 E R/W RS 8 COM 16 LCDP 20 characters 4 lines Control LSI HD44780 or equivalent SEG 40 SEG 160 4 Column Driver MSM5259 4 or equivalent VCC VSS Bias Circuit To LSI VEE XERTPO DMC20434N (AJ) No.97-0208 OPTREX CORPORATION Page 8/14 5. Test No change on display and in operation under the following test condition. No. 1 2 3 4 5 6 Parameter High Temperature Operating Low Temperature Operating High Temperature Storage Low Temperature Storage Damp Proof Test Vibration Test Conditions 50C2C, 96hrs (operation state) 0C2C, 96hrs (operation state) 70C2C, 96hrs -20C2C, 96hrs 40C2C, 90~95%RH, 96hrs Total fixed amplitude : 1.5mm Vibration Frequency : 10~55Hz One cycle 60 seconds to 3 directions of X, Y, Z for each 15 minutes 7 Shock Test To be measured after dropping from 60cm high on the concrete surface in packing state. Dropping method corner dropping A corner : once Edge dropping C B,C,D edge : once Face dropping E,F,G face : once Notes 3 4 3, 4 3, 4 5 F E B G D A 60cm Concrete Surface Note 1 : Unless otherwise specified, tests will be conducted under the following condition. Temperature : 205C Humidity : 655% Note 2 : Unless otherwise specified, tests will be not conducted under functioning state. Note 3 : No dew condensation to be observed. Note 4 : The function test shall be conducted after 4 hours storage at the normal temperature and humidity after removed from the test chamber. Note 5 : Vibration test will be conducted to the product itself without putting it in a container. XERTPO DMC20434N (AJ) No.97-0208 OPTREX CORPORATION Page 9/14 6. Appearance Standards 6.1. Inspection conditions The LCD shall be inspected under 40W white fluorescent light. The distance between the eyes and the sample shall be more than 30cm. All directions for inspecting the sample should be within 45against perpendicular line. 45 6.2. Definition of applicable Zones A Zone B Zone C Zone Bezel Flame A Zone : Active display area B Zone : Area from outside of "A Zone" to validity viewing area C Zone : Rest parts A Zone + B Zone = Validity viewing area XERTPO DMC20434N (AJ) No.97-0208 OPTREX CORPORATION Page 10/14 6.3. Standards No. 1 Parameter Black and White Spots, Foreign Substances Dimension (mm) D 0.1 0.1 < D 0.2 0.2 < D 0.3 0.3 < D D = ( Long + Short ) / 2 (2) Line Shape Zone X(mm) 2.0L 1.0L 1.0L Y(mm) 0.02W 0.03W 0.04W 0.05W 0.05<W A * 3 1 0 Acceptable Number B * 3 2 2 In the same way (1) * : Disregard C * * * * (1) Round Shape Zone A * 5 0 0 * : Disregard Acceptable Number B * 5 1 0 C * * * * Criteria X : Length Y : Width Total defects shall not exceed 5. 2 Air Bubbles (between glass & polarizer) Dimension (mm) D 0.15 0.15< D 0.3 0.3 < D 0.5 0.5 < D 1.0 * : Disregard Total defects shall not exceed 3. Zone A * 2 1 0 Acceptable Number B * 3 2 1 C * * * * XERTPO DMC20434N (AJ) No.97-0208 OPTREX CORPORATION Page 11/14 No. 3 Parameter The Shape of Dot (1) Dot Shape (with Dent) 0.15 Criteria As per the sketch of left hand. (2) Dot Shape (with Projection) Should not be connected to next dot. (3) Pin Hole X (X+Y) / 20.2mm Y (Less than 0.1mm is no counted.) Total defects shall not exceed 5. 4 5 Polarizer Scratches Polarizer Dirts Not to be conspicuous defects. If the stains are removed easily from LCDP surface, the module is not defective. 6 Color Variation Not to be conspicuous defects. XERTPO DMC20434N (AJ) No.97-0208 OPTREX CORPORATION Page 12/14 7. Code System of Production Lot The production lot of module is specified as follows. Factory Number (Numeral) Factory Code (Alphabet) Production Week (1~5) Production Month (1~9, X, Y, Z) Production Year (Lower 2 digits) 8. Type Number The type number of module is specified on the back of module as follows. DMC20434 N Stamp Etching or Printing 9. Applying Precautions Please contact us when questions and/or new problems not specified in this specifications arise. XERTPO DMC20434N (AJ) No.97-0208 OPTREX CORPORATION Page 13/14 10. Handling Precautions Optrex Products are designed for use in ordinary electronic devices such as business machines, telecommunications equipment, measurement devices and etc.. Optrex Products are not designed, intended, or authorized for use in any application in which the failure of the product could result in a situation where personal injury or death may occur. These applications include, but are not limited to, life-sustaining equipment, nuclear control devices, aerospace equipment, devices related to hazardous or flammable materials, etc. (If Buyer intends to purchase or use the Optrex Products for such unintended or unauthorized applications, Buyer must secure prior written consent to such use by a responsible officer of Optrex Corporation.) Should Buyer purchase or use Optrex Products for any such unintended or unauthorized application (without such consent), Buyer shall indemnify and hold Optrex and its officers, employees, subsidiaries, affiliates and distributors harmless against all claims, costs, damages and expenses, and reasonable attorney's fees, arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Optrex was negligent regarding the design or manufacture of the part. 1) LCD may be broken because it is made of glass. 2) Polarizer is a soft material and can easily be scratched. 3) Please avoid static electricity. x Please be sure to ground human body and electric appliances during work. y It is preferable to use conductive mat on table and wear cotton clothes or conduction processed fiber. Synthetic fiber is not recommended. z Please slowly peel off protective film, because static electricity may be charged. 4) If it is necessary to store LCD modules for a long time, please comply with the following procedures. If storage condition is not satisfactory, display (especially polarizer) may be deteriorated or soldering I/O terminals may become difficult (some oxide is generated at I/O terminals plating). x Store as delivered by Optrex y If you store as unpacked, put in anti-static bag, seal its opening and store where it is not subjected to direct sunshine nor fluorescent lamp. z Store at temperature 0 to +35C and at low humidity. Please refer to our specification sheets for storage temperature range and humidity condition. 5) The module does not contain excess current limiter. Please design the limiter to cut excess current in your power supply circuit. 6) Liquid crystal may be leaked when display is broken. Never taste it. If your hands or clothes touch it, please immediately wash using soap. 7) The connection between the bezel and VSS (GND) is not specified in the module. (Some module do not maintain connection between them.) Please consult OPTREX to specify the connection. Optrex shall not be responsible for any infringement of industrial property rights of third parties in any country arising out of the application or use of Optrex Products, except which directly concern the structure or production of such products. XERTPO DMC20434N (AJ) No.97-0208 OPTREX CORPORATION Page 14/14 ...
View Full Document

Ask a homework question - tutors are online