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Engineering Specification
Note:Specification is subject to change without notice. Consequently it is better to contact to International Display Technology before proceeding with the design of your product incorporating this module.
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Engineering Specification
Type 14.1 XGA Color TFT/LCD Module Model Name:ITXG77H
Document Control Number : OEM I-77H-01
(C) Copyright International Display Technology 2002 All Rights reserved. February 4,2002 OEM I-77H-01
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Sales Support International Display Technology
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Engineering Specification
i Contents
i Contents ii Record of Revision 1.0 Handling Precautions 2.0 General Description 2.1 Characteristics 2.2 Functional Block Diagram 3.0 Absolute Maximum Ratings 4.0 Optical Characteristics 5.0 Signal Interface 5.1 Connectors 5.2 Signal Pin 5.3 Signal Description 5.4 Signal Electrical Characteristics 5.5 Signal for Lamp connector 6.0 Pixel format image 7.0 Parameter guide line for CFL Inverter 8.0 Interface Timings 8.1 Timing Characteristics 8.2 Timing Definition 9.0 Power Consumption 10.0 Power ON/OFF Sequence 11.0 Mechanical Characteristics 12.0 National Test Lab Requirement
(C) Copyright International Display Technology 2002 All Rights reserved. February 4,2002 OEM I-77H-01 2/24
Engineering Specification
ii Record of Revision
Date July 13,2001 Document Revision OEM77H-01 Page All Summary First Edition for customer. Based on Internal Spec. ITXG77H. (To add a plate to ITXG77C.) Updated by establishment of New Company as "International Display Technology".
February 4,2002
OEM I-77H-01
(C) Copyright International Display Technology 2002 All Rights reserved. February 4,2002 OEM I-77H-01 3/24
Engineering Specification
1.0 Handling Precautions
1) Since front polarizer is easily damaged, pay attention not to scratch it. 2) Be sure to turn off power supply when inserting or disconnecting from input connector. 3) Wipe off water drop immediately. Long contact with water may cause discoloration or spots. 4) When the panel surface is soiled, wipe it with absorbent cotton or other soft cloth. 5) Since the panel is made of glass, it may break or crack if dropped or bumped on hard surface. 6) Since CMOS LSI is used in this module, take care of static electricity and insure human earth when handling. 7) Do not open nor modify the Module Assembly. 8) Do not press the reflector sheet at the back of the module to any directions. 9) In case if a Module has to be put back into the packing container slot after once it was taken out from the container, do not press the center of the CFL Reflector edge. Instead, press at the far ends of the CFL Reflector edge softly. Otherwise the TFT Module may be damaged. 10) At the insertion or removal of the Signal Interface Connector, be sure not to rotate nor tilt the Interface Connector of the TFT Module. 11) After installation of the TFT Module into an enclosure ( Notebook PC Bezel, for example), do not twist nor bent the TFT Module even momentary. At designing the enclosure, it should be taken into consideration that no bending/twisting forces are applied to the TFT Module from outside. Otherwise the TFT Module may be damaged. 12) Cold cathode fluorescent lamp in LCD contains a small amount of mercury. Please follow local ordinances or regulations for disposal. 13)Small amount of materials having no flammability grade is used in the LCD module. The LCD module should be supplied by power complied with requirements of Limited Power Source (2.11, IEC60950 or UL1950), or be applied exemption conditions of flammability requirements (4.4.3.3, IEC60950 or UL1950) in an end product. 14)The LCD module is designed so that the CFL in it is supplied by Limited Current Circuit (2.4, IEC60950 or UL1950). Do not connect the CFL in Hazardous Voltage Circuit.
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The information contained herein is presented only as a guide for the applications of our products. No responsibility is assumed by International Display Technology for any infringements of patents or other right of the third partied which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of International Display Technology or others. The information contained herein may be changed without prior notice. It is therefore advisable to contact International Display Technology before proceeding with the design of equipment incorporating this product.
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(C) Copyright International Display Technology 2002 All Rights reserved. February 4,2002 OEM I-77H-01 4/24
Engineering Specification
2.0 General Description
This specification applies to the Type 14.1 Color TFT/LCD Module 'ITXG77H'. This module is designed for a display unit of notebook style personal computer. The screen format and electrical interface are intended to support the XGA (1024(H) x 768(V))screen. Support color is native 262k colors ( RGB 6-bit data driver ).All input signals are LVDS interface compatible. This module does not contain a inverter card for backlight.
2.1 Characteristics
The following items are characteristics summary on the table under 25 degree C condition: ITEMS SPECIFICATIONS Screen Diagonal [mm] Active Area [mm] Pixels H x V Pixel Pitch [mm] Pixel Arrangement Display Mode Typical White Luminance [cd/m 2] Design Point 1:(ICFL=2.8mA) Design Point 2:(ICFL=6.0mA) Contrast Ratio Optical Rise Time/Fall Time [msec] Nominal Input Voltage [Volt] VDD Logic Power Consumption[watt] (VDD line) Lamp Power Consumption [watt] Design Point 1:(ICFL=2.8mA) Design Point 2:(ICFL=6.0mA) Weight [grams] Physical Size [mm] Electrical Interface Support Color Temperature Range (degree C) Operating Storage (Shipping) 357 285.7(H) x 214.3(V) 1024(x3) x 768 0.279(per one triad) x 0.279 R.G.B. Vertical Stripe Normally White 90 Typ.(Center), 85 Typ.(5 points average) 160 Typ.(Center),150 Typ.(5 points average) 250 : 1 Typ. 30 Typ. ,50Max.(each) +3.3 Typ. 1.2Typ. 2.2 Typ. 3.9 Typ. 445 Typ.(w/o Inverter) 298.5(W) x 227.2(H) x 5.7(D) Typ. 6-bit digital video for each color R/G/B, 3 sync, Clock 4 pairs LVDS Native 262K colors ( RGB 6-bit data driver ) 0 to +50 -20 to +60
(C) Copyright International Display Technology 2002 All Rights reserved. February 4,2002 OEM I-77H-01 5/24
Engineering Specification
2.2 Functional Block Diagram
The following diagram shows the functional block of the Type 14.1 Color TFT/LCD Module:
X-Driver <4 pairs LVDS> RxIN0 RxIN1 RxIN2 RxCLKIN
LCD DRIVE CARD
LCD
Controller
TFT ARRAY/CELL 1024(R/G/B) x 768
DC-DC Converter Ref circuit
Y-Driver
VDD GND
Backlight Unit Lamp Connector (2pin) JST BHSR-02VS-1 Mating JST SM02B-BHSS-1-TB
JAE FI-SEB20P-HF Mating JAE FI-S20S or FI-SE20M FI-C3-A1
(C) Copyright International Display Technology 2002 All Rights reserved. February 4,2002 OEM I-77H-01 6/24
Engineering Specification
3.0 Absolute Maximum Ratings
Absolute maximum ratings of the module is as follows : Item Supply Voltage Logic/LCD Drive Voltage Input Voltage of Signal CFL Inrush current CFL Current CFL Ignition Voltage Operating Temperature Operating Relative Humidity Storage Temperature Storage Relative Humidity Vibration Shock Symbol VDD Vin ICFLL ICFL Vs TOP HOP TST HST Min -0.3 -0.3 0 8 -20 5 Max +4.0 VDD+0.3 20 6.5 1,600 +50 95 +60 95 1.5 50 10-200 18 Unit V V mA mArms Vrms deg.C %RH deg.C %RH G G Hz ms Half sine wave. Note 1 Note 1 Note 1 Note 1 Note 2 Conditions
Note 1 : Maximum Wet-Bulb should be 39 degree C and No condensation. Note 2 : Duration=50 msec Max.
(C) Copyright International Display Technology 2002 All Rights reserved. February 4,2002 OEM I-77H-01 7/24
Engineering Specification
4.0 Optical Characteristics
The optical characteristics are measured under stable conditions as follows under 25 deg.C condition: Item Viewing Angle (Degrees) K:Contrast Ratio Contrast ratio Response Time (ms) Color Chromaticity (CIE) Rising Falling Red Red Green Green Blue Blue White White White Luminance (cd/m 2) CFL 6.0mA x y x y x y x y Conditions Horizontal K210 Vertical K210 (Right) (Left) (Upper) (Lower) Specification Typ. 40 40 15 30 250 30 30 0.577 0.338 0.310 0.554 0.158 0.124 0.313 0.329 160 Center 150 5 points average Note 50(Max) 50(Max)
(C) Copyright International Display Technology 2002 All Rights reserved. February 4,2002 OEM I-77H-01 8/24
Engineering Specification
5.0 Signal Interface
5.1 Connectors
Physical interface is described as for the connector on module. These connectors are capable of accommodating the following signals and will be following components. Connector Name / Designation Manufacturer Type / Part Number Mating Housing/Part Number Mating Contact/Part Number For Signal Connector JAE FI-SEB20P-HF FI-S20S or FI-SE20M or FI-S20S with shell. FI-C3-A1
Connector Name / Designation Manufacturer Type / Part Number Mating Type / Part Number
For Lamp Connector JST BHSR-02VS-1 SM02B-BHSS-1-TB
5.2 Signal Pin
Pin# 1 2 3 4 5 6 7 8 9 10 Signal VDD VDD GND GND RxIN0RxIN0+ GND RxIN1RxIN1+ GND Pin# 11 12 13 14 15 16 17 18 19 20 Signal RxIN2RxIN2+ GND RxCLKINRxCLKIN+ GND Reserved Reserved GND GND
(C) Copyright International Display Technology 2002 All Rights reserved. February 4,2002 OEM I-77H-01 9/24
Engineering Specification
5.3 Signal Description
The module uses a LVDS compatible receiver. LVDS is a differential signal technology for LCD interface and high speed data transfer device. Transmitter shall be SN75LVDS84(negative edge sampling) or compatible.
Signal Name RxIN0+, RxIN0RxIN1+, RxIN1RxIN2+, RxIN2RxCLKIN+, RxCLKINVDD GND
Description LVDS differential data input (Red0-Red5, Green0) LVDS differential data input (Green1-Green5,Blue0-Blue1) LVDS differential data input (Blue2-Blue5, HSync, VSync, DSPTMG) LVDS differential clock input +3.3V Power Supply Ground
Note: Input signals shall be low or Hi-Z state when VDD is off.
(C) Copyright International Display Technology 2002 All Rights reserved. February 4,2002 OEM I-77H-01 10/24
Engineering Specification
Internal circuit of LVDS inputs are as follows:
The module uses a 100ohm resistor between positive and negative data lines of each receiver input.
(C) Copyright International Display Technology 2002 All Rights reserved. February 4,2002 OEM I-77H-01 11/24
Engineering Specification
SIGNAL NAME +RED5 +RED4 +RED3 +RED2 +RED1 +RED0
Description Red Data 5 (MSB) Red Data 4 Red Data 3 Red Data 2 Red Data 1 Red Data 0 (LSB) Red-pixel Data Green Data 5 (MSB) Green Data 4 Green Data 3 Green Data 2 Green Data 1 Green Data 0 (LSB) Green-pixel Data Blue Data 5 (MSB) Blue Data 4 Blue Data 3 Blue Data 2 Blue Data 1 Blue Data 0 (LSB) Blue-pixel Data Data Clock
Red-pixel Data Each red pixel's brightness data consists of these 6 bits pixel data.
+GREEN 5 +GREEN 4 +GREEN 3 +GREEN 2 +GREEN 1 +GREEN 0
Green-pixel Data Each green pixel's brightness data consists of these 6 bits pixel data.
+BLUE 5 +BLUE 4 +BLUE 3 +BLUE 2 +BLUE 1 +BLUE 0
Blue-pixel Data Each blue pixel's brightness data consists of these 6 bits pixel data.
-DTCLK
DSPTMG VSYNC HSYNC
Display Timing Vertical Sync Horizontal Sync
The typical frequency is 65.0 MHz. The signal is used to strobe the pixel data and DSPTMG signals. All pixel data shall be valid at the falling edge when the DSPTMG signal is high. This signal is strobed at the falling edge of -DTCLK. When the signal is high, the pixel data shall be valid to be displayed. The signal is synchronized to -DTCLK . The signal is synchronized to -DTCLK .
Note: Output signals from any system shall be low or Hi-Z state when VDD is off.
(C) Copyright International Display Technology 2002 All Rights reserved. February 4,2002 OEM I-77H-01 12/24
Engineering Specification
5.4 Signal Electrical Characteristics
Input signals shall be low or Hi-Z state when VDD is off. It is recommended to refer the specifications of SN75LVDS86DGG(Texas Instruments) in detail.
Interface signal electrical characteristics
Parameter Symbol Min Typ Differential Input High Threshold Vth Differential Input Low Threshold Vtl -100 Magnitude Differential Input |Vid| 100 Voltage Common Mode Voltage Vcm 1.0 1.2 Common Mode Voltage Offset Vcm -50 Note : Input signals shall be low or HiZ state when VDD is off. Max +100 600 1.4 +50 Unit [mV ] [mV ] [mV] [V] [mV] Conditions Vcm=+1.2V Vcm=+1.2V Vth - Vtl = 200mV Vth - Vtl = 200mV
Voltage Definitions
(C) Copyright International Display Technology 2002 All Rights reserved. February 4,2002 OEM I-77H-01 13/24
Engineering Specification
Switching Characteristics
Parameter Clock Frequency Cycle Time Data Setup Time Data Hold Time Symbol fc tc Tsu Thd Min 50 14.93 600 600 Typ 65 15.38 Max 67 20.00 Unit [MHz] [ns] [ps] [ps] Conditions (Note 1)
Cycle-to-cycle jitter tCCJ -150 +150 [ps] Cycle modulation rate tCJavg 20 [ps/clk] Note; 1. All values are at VDD=3.3V, Ta=25 degree C. 2. Jitter is the magnitude of the change in input clock period. 3. This specification defines maximum average cycle modulation rate in peak-to-peak transition within any 100 clock cycles. This specification is applied only if input clock peak jitter within any 100 clock cycles is greater than 300ps.
fc = 65MHz, jitter < 50ps, Vth-Vtl = 200mV, Vcm = 1.2V, Vcm = 0 (Note 2) (Note 3)
LVDS Timing
(C) Copyright International Display Technology 2002 All Rights reserved. February 4,2002 OEM I-77H-01 14/24
Engineering Specification
LVDS Timing(Detail A)
5.5 Signal for Lamp connector
Pin # 1
2
Signal Name Lamp High Voltage Lamp Low Voltage
(C) Copyright International Display Technology 2002 All Rights reserved. February 4,2002 OEM I-77H-01 15/24
Engineering Specification
6.0 Pixel format image
Following figure shows the relationship of the input signals and LCD pixel format image.
0 1st Line 1 1022 1023 RG B R G B
R GB R G B
768th Line RG B R G B
RG B R G B
(C) Copyright International Display Technology 2002 All Rights reserved. February 4,2002 OEM I-77H-01 16/24
Engineering Specification
7.0 Parameter guide line for CFL Inverter
PARAMETER White Luminance center 5 points average CFL current(ICFL) MIN 90 85 2.5 2.8 160 150 6.0 6.4 mArms (Ta=25 deg.C) Note 4 (Ta=25 deg.C) Note 1 (Ta= 0 deg.C) Note 3 CFL Voltage (Reference)(VCFL) CFL Power consumption(PCFL) 2.2 650 3.9 Vrms W (Ta=25 deg.C) Note 2 (Ta=25 deg.C) Note 2 DP-1 DP-2 MAX UNITS cd/m 2 CONDITION (Ta=25 deg.C)
CFL Frequency(FCFL) CFL Ignition Voltage(Vs)
40 1,400
50 -
50 -
60 -
KHz Vrms
Note 1: CFL discharge frequency must be carefully determined to avoid interference between inverter and TFT LCD. Note 2: Calculated value for reference (ICFL x VCFL = PCFL). Note 3: CFL inverter should be able to give out a power that has a generating capacity of over 1,400 voltage. Lamp units need 1,400 voltage minimum for ignition. Note 4: It should be employed the inverter whitch has "Duty Dimming", if ICFL is less than 4 mA. Note 5: DP-1(Design Point-1) and DP-2(Design Point-2) are recommended Design Point. *1 All of characteristics listed are measured under the condition using the Test inverter. *2 In case of using an inverter other than listed, it is recommended to check the inverter carefully. Sometimes, interfering noise stripes appear on the screen, and substandard luminance or flicker at low power may happen. *3 In designing an inverter, it is suggested to check safety circuit very carefully. Impedance of CFL, for instance, becomes more than 1 [M ohm] when CFL is damaged. *4 Generally, CFL has some amount of delay time after applying kick-off voltage. It is recommended to keep on applying kick-off voltage for 1 [Sec] until discharge. *5 Reducing CFL current increases CFL discharge voltage and generally increases CFL discharge frequency. So all the parameters of an inverter should be carefully designed so as not to produce too much leakage current from high-voltage output of the inverter.
(C) Copyright International Display Technology 2002 All Rights reserved. February 4,2002 OEM I-77H-01 17/24
Engineering Specification
The following chart is Luminance versus Lamp current for your reference.
Luminance vs Lamp current (Reference) 180 170 160 150 140 130 120 110 100 90 80 70 60 50 40 30 1 2 3 4 5 6 7 Lamp current [mA]
(C) Copyright International Display Technology 2002 All Rights reserved. February 4,2002 OEM I-77H-01 18/24
Luminance [cd/m ]
2
Engineering Specification
8.0 Interface Timings
Basically, interface timings should match the VESA 1024x768 / 60 Hz (VG901101) manufacturing guide line timing.
8.1 Timing Characteristics
Symbol fdck tck tx tacx tbkx Hsync Hsw Hbp Hfp ty tacy Vsync Vw Vfp Vbp DTCLK Frequency DTCLK cycle time X total time X active time X blank time H frequency H-Sync width H back porch H front porch Y total time Y active time Frame rate V-sync Width V-sync front porch V-sync back porch 2 1 0 777 768 (55) 1 1 7 MIN 50.0 14.93 1206 1024 90 TYP 65.00 15.38 1344 1024 320 48.363 136 160 24 806 768 60 6 3 29 63 1023 768 61 MAX 67.0 20.0 2047 1024 Unit MHz nsec tck tck tck KHz tck tck tck tx tx Hz tx tx tx 3 2 2 1 Unit
Note: 1. tbkx=Hfp+Hsw+Hbp 2. Hsw + Hbp should be less than 515 [tck]. 3. Vbp should be static
(C) Copyright International Display Technology 2002 All Rights reserved. February 4,2002 OEM I-77H-01 19/24
Engineering Specification
8.2 Timing Definition
1344 dot H-Sync
24 dot
160 dot
136 dot DSPTMG 1024 dot
V-Sync 3H 6H DSPTMG 38H 768H 29H
(C) Copyright International Display Technology 2002 All Rights reserved. February 4,2002 OEM I-77H-01 20/24
Engineering Specification
9.0 Power Consumption
Input power specifications are as follows; SYMBOL VDD PDD PDD IDD IDD VDDrp VDDns PARAMETER Logic/LCD Drive Voltage VDD Power VDD Power VDD Current VDD Current Allowable Logic/LCD Drive Ripple Voltage Allowable Logic/LCD Drive Ripple Noise 350 100 100 1.2 460 Min 3.0 Typ 3.3 Max 3.6 1.6 UNITS [V] [W] [W] [mA] [mA] [mVp-p] [mVp-p] CONDITION Load Capacitance 20[uF] Max. Pattern, VDD=3.6[V] All Black Pattern, VDD=3.3[V] Max Pattern, VDD=3.0[V] All Black Pattern, VDD=3.3[V]
(C) Copyright International Display Technology 2002 All Rights reserved. February 4,2002 OEM I-77H-01 21/24
Engineering Specification
10.0 Power ON/OFF Sequence
VDD power and lamp on/off sequence is as follows. Interface signals are also shown in the chart. Signals from any system shall be Hi-Z state or low level when VDD is off.
150ms min.
VDD
0V
90% 10%
90% 10% 10%
10ms max. 0 min.
90% 90% 10%
0 min.
Signals
0V
10%
100ms min. 180ms min. (Recommended).
20ms min.
Lamp
On
(C) Copyright International Display Technology 2002 All Rights reserved. February 4,2002 OEM I-77H-01 22/24
Engineering Specification
11.0 Mechanical Characteristics
(C) Copyright International Display Technology 2002 All Rights reserved. February 4,2002 OEM I-77H-01 23/24
Engineering Specification
12.0 National Test Lab Requirement
The display module will be authorized to Apply the UL Recognized Mark.
Conditions of Acceptability
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This component has been judged on the basis of the required spacings in the Standard for Safety of Information Technology Equipment, Including Electrical Business Equipment, CAN/CSA C22.2 No.950-95 *UL 1950, Third Edition, including revisions through revision date March 1,1998, which are based on the Fourth Amendment to IEC 950, Second Edition, which would cover the component itself if submitted for Listing. CF Lamp circuit for this model should be supplied from Limited Current Circuit. The units are supplied by Limited Power Sources. The terminals and connectors are suitable for factory wiring only. The terminals and connectors have not been evaluated for field wiring. A suitable Electrical and Fire enclosure shall be provided.
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