LITEMAX LH1226. Sunlight Readable 12.1 LCD Display. LITEMAX Electronics Inc. All information is subject to change without notice.

Transcription

1 LITEMAX LH1226 Sunlight Readable 12.1 LCD Display (1st Edition 6/29/2004 ) All information is subject to change without notice. LITEMAX Electronics Inc. 4F, No.131-3, Lane235, Bau-chiau Rd., Shin-dian City, Taipei County, Taiwan R.O.C. Tel Fax Homepage http//

2 INTRODUCTION AND OVERVIEW This is a product specification that specifies form, fit, and function of the 12.1 TFT LCD monitor and its options. The LH1226 products are a family of high bright LCD monitors intended for use in a variety of industrial and commercial applications. Some of these applications include Car TV, Kiosk, Control Panel, Fish Finder, Marine, POI, Teketing, Aviation, Advertising, Gas Pumps, Signage... The LCD panel for LH1226 has a particularly fast response time of 50ms (Max) and consequently very well suited for video applications. The LH1226 is a 12.1 active matrix TFT LCD with a native resolution of 1024X768. It has a typical luminance of 1250 nits with a +12VDC input. The video interface is through a standard 15 pin analog input with an integrated On-Screen Display (OSD).(LF1226=LTD121EA43G+LI2002) (LH1226=LF1226+RTD2020 A/D Board) 1. OUTLINE 1.1 STRUCTURE AND PRINCIPLE LH1226 module is composed of the driver LSIs for driving the TFT (Thin Film Transistor) array with an amorphous silicon thin film transistor liquid crystal display (p-si TFT LCD) panel structure and a backlight. The p-si TFT LCD panel structure is injected liquid crystal material into the narrow gap between a TFT array glass substrate and a color filter glass substrate. RGB (Red, Green, and Blue) data signals from a source system are modulated into a form suitable for active matrix addressing by the onboard signal processor and sent to the driver LSIs which in turn address the individual TFT cells. Working as an electro-optical switch, each TFT cell regulates transmitted light from the backlight assembly when worked by the data source. Color images are created by regulating the amount of transmitted light through the array of red, green and blue dots. 1.2 APPLICATIONS Car TV, Kiosk, Control Panel, Fish Finder, Marine, POI, Teketing, Aviation, Advertising, Gas Pumps, Signage FEATURES wide viewing angle High luminance High contrast Wide color gamut Luminance control Small foot prints LH1226 Page 2

3 GENERAL SPECIFICATIONS Display area Drive system Display colors Number of pixels Pixel arrangement Pixel pitch Module size Weight Contrast ratio (H) x (V) mm p-si TFT active matrix 262K 1024 (H) x 768(V) pixel RGB (Red, Green, Blue) vertical stripe 0.24 (H) x 0.24 (V) mm 277.4(H) x 204.6(V) x 27(D) mm 800 g (typ.) 5001 (typ.) Viewing angle At the contrast ratio 101 Designed viewing direction Horizontal Left side 70 (typ.), Right side 70 (typ.) Vertical Up side 55 (typ.), Down side 70 (typ.) Optimum grayscale ( =2.2) perpendicular Color gamut Response time Luminance Backlight Power consumption At LCD panel center 60% (typ.) [against NTSC color space] Ton (black 10% white 90%) 50 ms (Max.) 1250 cd/m 2 (typ.) (with Litemax VGA) note2 Backlight unit Toshiba LTD121EA43G Inverter LI2002 MTBF hours (note1) At maximum luminance and checkered flag pattern 32W (typ.) with Inverter note1 CCFL Life time is determined as the time at which brightness. note2 None Litemax VGA Luminance 1600cd/m 2 (typ.) LH1226 Page 3

4 - CONTENTS 1. Scope 5 2. Product Specifications General Specifications 2.2 Absolute Maximum Ratings 2.3 Mechanical Specifications Weight Dimensional Outline 2.4 Electrical Specifications Circuit Diagram Sequence of Power Supplies and Signals Timing Chart Timing Specifications Interface Connector Recommended Transmitter Interface Assignment Colors Combination Table 3. Recommended Operating Conditions Electrical Characteristics Test Conditions 4.2 Specifications 4.3 Parameter guide line for CFL Inverter 5. Optical Characteristics Test Conditions 5.2 Optical Specifications 6. Quality Inspection AQL 6.2 Test Conditions 6.3 Dimensional Outline 6.4 Appearance Test Test Conditions Specifications 6.5 Display Quality Test Conditions Specifications 6.6 Reliability Test Test Conditions Specifications 6.7 Labels 7. Lifetime Module 8. Warranty Measuring Method Measuring Systems 9.2 Measuring Methods Precautions Li2002 Inverter 27 RTD2020 A/D Board 30

5 1. Scope This specification is applicable to Toshiba Matsushita Display Technology's 31cm diagonal size TFT-LCD module without backlight "LTD121EA43G" designed for Note PC. 2. Product Specifications 2.1 General Specifications Item Display Mode Viewing Direction Driving Method Input Signals Specifications TN color(64 gray scales, 262,144 colors) Transmissive type, Normally white 6 o'clock (in direction of maximum contrast) TFT active matrix LVDS interface CLK+, CLK-, RxIN0+, RxIN0-, RxIN1+, RxIN1-, RxIN2+, RxIN (W ) (H ) (mm) Active Area Number of Pixels 1024 (W ) 768 (H ) 1) Pixel Pitch (W ) (H ) (mm) 1) Pixel Arrangement RGB vertical stripes 1) Surface Treatment Anti-Reflection and hard coat 3H on LCD surface Dimensional Outline of Glass Transmission axis direction of polarizer (at the time of looking from front) (W ) (H ) 1.27 (D ) (mm) 45 degree (inclination with X-axis) (refer to Dimensional Outline) Note 1) R G B R G B R G B R G B 2 R G B R G B R G B R G B R G B pixel 767 R G B R G B R G B R G B R G B Sub-pixel (Dots) 768 R G B R G B R G B R G B 0.240mm 0.240mm LH1226 Page 5

6 Humidity [%(RH)] 2.2 Absolute Maximum Ratings 1) Item Symbol Min. Max. Unit Checked Terminal 4) Supply Voltage V DD V V DD - GND Input Voltage of Signals V IN -0.3 V DD +0.3 V LVDS interface Operating Ambient Temperature 2) T OP 0 50 C Operating Ambient Humidity 2) H OP %(RH) Storage Temperature 2) T STG C Storage Humidity 2) H STG %(RH) Operating Temperature for Panel 3) C Note 1) Do not exceed the maximum rating values under the worst probable conditions taking into account the supply voltage variation, input voltage variation, variation in part constants, and ambient temperature and so on. Otherwise the module may be damaged. Note 2) Wet bulb temperature should be 39 C Max, and no condensation of water. See figure below. Note 3) The surface temperature caused by self heat radiation of cell itself is specified on this item. Note 4) Refer to %80% 60% 40% 50 Wet Bulb Temperature [ C] 40 20% Storage 30 10% Operation Dry Bulb Temperature [ C] 2.3 Mechanical Specifications Weight 153g ± 20 g LH1226 Page 6

7 Outline Dimensions Unit mm Standard tolerance ±0.5!"!" LH1226 Page 6

8 2.4 Electrical Specifications Circuit Diagram Source-driver CN1 DC/DC converter Gray scale Manipulation Voltage Generation Circuit Gate-driver Liquid Crystal Panel 1024 x 768 pixels Gate-driver Connector Panel Controller LVDS Sequence of Power Supplies and Signals 10ms(Max.) 10ms(Max.) 500 ms (Min.) 3.0V 3.0V V DD 0.2V 40ms(Max.) 0ms(Min.) 40ms(Max.) 0ms(Min.) 0.2V 0.2V CLK+, RxIN0+/- RxIN1+/- RxIN2+/- 10% 10% 100ms(Min.) 0ms(Min.) ON Backlight (Recommend) OFF LH1226 Page 8

9 2.4.3 Timing Chart tvw tv VSYNC HSYNC tvsu tvhd th tv p tvbp tvd tvds DE thw th HSYNC thbp thfp thds thd DE 1024 pixel tc CLK LH1226 Page 9

10 1) 2) 3) 4) 5) 6) Timing Specifications Item Symbol min. typ. max. unit Horizontal Scanning Term th 1334 x tc 1344 x tc - clock H-sync Pulse Width thw 4 x tc 136 x tc - clock Horizontal Front Porch thfp 4 x tc 24 x tc - clock Horizontal Back Porch thbp 24 x tc 160 x tc - clock Horizontal Data Sync Period thds 32 x tc 296 x tc - clock Horizontal Display Term thd 1024 x tc 1024 x tc 1024 x tc clock Frame Period tv x th - line Frame Frequency 1/tv Hz V-sync Pulse Width tvw 2 x th 6 x th - line V-sync Set Up Time (to H-sync) tvsu 8 x tc - - clock V-sync Hold Time tvhd (thbp+16) x tc - - clock Vertical Front Porch tvfp 1 x th 3 x th - line Vertical Back Porch tvbp 2 x th 29 x th - line Vertical Data Sync Period tvds 8 x th 35 x th - line Vertical Display Term tvd 768 x th 768 x th 768 x th line Clock Period tc ns Note 1) Refer to Timing Chart and LVDS (THC63LVDF84A-85) specifications by THine Electronics,Inc. Note 2) If NCLK is fixed to "H" or "L" level for certain period while V DD is supplied, the panel may be damaged. Note 3) Please adjust LCD operating signal timing and FL driving frequency, to optimize the display quality. There is a possibility that flicker is observed by the interference of LCD operating signal timing and FL driving condition (especially driving frequency), even if the condition satisfies above timing specifications. Note 4) Do not make tv, tvhd and tvds fluctuate. If tv, tvhd, and tvds are fluctuate, the panel displays black. Note 5) In case of using the long frame period, the deterioration of display quality, noise etc. may be occurred. Note 6) NCLK count of each Horizontal Scanning Time should be always the same. V-Blanking period should be n X Horizontal Scanning Time. (n integer) Frame period should be always the same. LH1226 Page 10

11 2.4.5 Interface Connector CN1 INPUT SIGNAL Connector DF19L-20P-1H / Hirose Electric Co., Ltd. Mating Connector DF19G-20S-1C(Cable Type), DF19G-20S-1F(FPC Type) / Hirose Electric Co., Ltd. Terminal No. Symbol Function 1 VDD Power Supply +3.3V 2 VDD Power Supply +3.3V 3 GND GND 4 GND GND 5 RxIN0- Negative LVDS differential data input (R0-R5,G0) 6 RxIN0+ Positive LVDS differential data input (R0-R5,G0) 7 GND GND 8 RxIN1- Negative LVDS differential data input (G1-G5, B0-B1) 9 RxIN1+ Positive LVDS differential data input (G1-G5, B0-B1) 10 GND GND 11 RxIN2- Negative LVDS differential data input (B2-B5, HS, VS, DE) 12 RxIN2+ Positive LVDS differential data input (B2-B5, HS, VS, DE) 13 GND GND 14 CLK- Clock Signal(-) 15 CLK+ Clock Signal(+) 16 GND GND 17 NC 18 NC 19 GND GND 20 GND GND Note 1) Please connect NC pin to nothing. Don t connect it to grand nor to other signal input. Please connect GND to ground. Don t use it as no-connect nor connection with high impedance. Note 2) 262,144 colors are displayed by the combinations of 18 bits data. (See 2.4.7) LH1226 Page 11

12 2.4.6 Recommended Transmitter Interface Assignment Case1 6bit Transmitter THC63LVDF63A, THC63LVDM63A, THC63LVDM63A-85 Input Terminal No. Input Signal (Graphics controller output signal) Symbol Terminal Symbol Function TA0 44 R0 Red Pixels Display Data (LSB) TA1 45 R1 Red Pixels Display Data TA2 47 R2 Red Pixels Display Data TA- TA3 48 R3 Red Pixels Display Data TA+ TA4 1 R4 Red Pixels Display Data TA5 3 R5 Red Pixels Display Data (MSB) TA6 4 G0 Green Pixels Display Data (LSB) TB0 6 G1 Green Pixels Display Data TB1 7 G2 Green Pixels Display Data TB2 9 G3 Green Pixels Display Data TB- TB3 10 G4 Green Pixels Display Data TB+ TB4 12 G5 Green Pixels Display Data (MSB) TB5 13 B0 Blue Pixels Display Data (LSB) TB6 15 B1 Blue Pixels Display Data TC0 16 B2 Blue Pixels Display Data TC1 18 B3 Blue Pixels Display Data TC2 19 B4 Blue Pixels Display Data TC- TC3 20 B5 Blue Pixels Display Data (MSB) TC+ TC4 22 HSYNC Horizontal Synchronization Signal TC5 23 VSYNC Vertical Synchronization Signal TC6 25 DE Compound Synchronization Signal CLK IN 26 CLK Data Sampling Clock TCLK- TCLK+ LTD121EA43G Output Interface (CN1) Signal Symbol Terminal Symbol No.5 No.6 No.8 No.9 No.11 No.12 No.14 No.15 Note 1) Please refer to LVDS transmitter (THC63LVDF63A, THC63LVDM63A, THC63LVDM63A-85) specifications by THine Electronics, Inc. RxIN0- RxIN0+ RxIN1- RxIN1+ RxIN2- RxIN2+ CLK- CLK+ Rx IN0 TA6 TA5 TA4 TA3 TA2 TA1 TA0 G0 R5 R4 R3 R2 R1 R0 Rx IN1 Rx IN2 TB6 TB5 TB4 TB3 TB2 TB1 TB0 B1 B0 G5 G4 G3 G2 G1 TC6 TC5 TC4 TC3 TC2 TC1 TC0 DE VSYNC HSYNC B5 B4 B3 B2 LH1226 Page 12

13 Case2 8bit Transmitter THC63LVDF83A, THC63LVDM83A, THC63LVDM83A-85 Input Terminal No. Input Signal (Graphics controller output signal) Symbol Terminal Symbol Function TA0 51 R0 Red Pixels Display Data (LSB) TA1 52 R1 Red Pixels Display Data TA2 54 R2 Red Pixels Display Data TA- TA3 55 R3 Red Pixels Display Data TA+ TA4 56 R4 Red Pixels Display Data TA5 3 R5 Red Pixels Display Data (MSB) TA6 4 G0 Green Pixels Display Data (LSB) TB0 6 G1 Green Pixels Display Data TB1 7 G2 Green Pixels Display Data TB2 11 G3 Green Pixels Display Data TB- TB3 12 G4 Green Pixels Display Data TB+ TB4 14 G5 Green Pixels Display Data (MSB) TB5 15 B0 Blue Pixels Display Data (LSB) TB6 19 B1 Blue Pixels Display Data TC0 20 B2 Blue Pixels Display Data TC1 22 B3 Blue Pixels Display Data TC2 23 B4 Blue Pixels Display Data TC- TC3 24 B5 Blue Pixels Display Data (MSB) TC+ TC4 27 HSYNC Horizontal Synchronization Signal TC5 28 VSYNC Vertical Synchronization Signal TC6 30 DE Compound Synchronization Signal TD0 50 NC Non Connection (open) TD1 2 NC Non Connection (open) TD2 8 NC Non Connection (open) TD- TD3 10 NC Non Connection (open) TD+ TD4 16 NC Non Connection (open) TD5 18 NC Non Connection (open) TD6 25 NC Non Connection (open) CLK IN 31 CLK Data Sampling Clock TCLK- TCLK+ LTD121EA43G Output Interface (CN1) Signal Symbol Terminal Symbol No.5 No.6 No.8 No.9 No.11 No No.14 No.15 Note 1) Please connect NC pin to nothing. Don't connect it to ground nor to other signal input. Note 2) Please refer to LVDS transmitter (THC63LVDF83A, THC63LVDM83A, THC63LVDM83A-85) specifications by THine Electronics, Inc. RxIN0- RxIN0+ RIxN1- RxIN1+ RxIN2- RxIN2+ CLK- CLK+ Rx IN0 TA 6 TA 5 TA 4 TA 3 TA2 TA1 TA 0 G0 R5 R4 R3 R2 R1 R0 Rx IN1 Rx IN2 TB6 TB5 TB4 TB3 TB2 TB1 TB 0 B1 B0 G5 G4 G3 G2 G1 TC 6 TC5 TC4 TC3 TC2 TC1 TC 0 DE VSYNC HSYNC B5 B4 B3 B2 TD 6 TD 5 TD 4 TD 3 TD 2 TD 1 TD 0 NC NC NC NC NC NC NC LH1226 Page 13

14 2.4.7 Colors Combination Table Basic Color Gray Scale of Red Gray Scale of Green Gray Scale of Blue Gray Scale of White & Black Display MSB LSB R5 R4 R3 R2 R1 R0 MSB LSB G5 G4 G3 G2 G1 G0 MSB LSB B5 B4 B3 B2 B1 B0 Gray Scale Level Black L L L L L L L L L L L L L L L L L L - Blue L L L L L L L L L L L L H H H H H H - Green L L L L L L H H H H H H L L L L L L - Light Blue L L L L L L H H H H H H H H H H H H - Red H H H H H H L L L L L L L L L L L L - Purple H H H H H H L L L L L L H H H H H H - Yellow H H H H H H H H H H H H L L L L L L - White H H H H H H H H H H H H H H H H H H - Black L L L L L L L L L L L L L L L L L L L 0 L L L L L H L L L L L L L L L L L L L 1 Dark Light L L L L H L L L L L L L L L L L L L L 2 L3 L60 H H H H L H L L L L L L L L L L L L L61 H H H H H L L L L L L L L L L L L L L62 Red H H H H H H L L L L L L L L L L L L Red L63 Black L L L L L L L L L L L L L L L L L L L 0 L L L L L L L L L L L H L L L L L L L 1 Dark Light L L L L L L L L L L H L L L L L L L L 2 L3 L60 L L L L L L H H H H L H L L L L L L L61 L L L L L L H H H H H L L L L L L L L62 Green L L L L L L H H H H H H L L L L L L Green L63 Black L L L L L L L L L L L L L L L L L L L 0 L L L L L L L L L L L L L L L L L H L 1 Dark Light L L L L L L L L L L L L L L L L H L L 2 L3 L60 L L L L L L L L L L L L H H H H L H L61 L L L L L L L L L L L L H H H H H L L62 Blue L L L L L L L L L L L L H H H H H H Blue L63 Black L L L L L L L L L L L L L L L L L L L 0 L L L L L H L L L L L H L L L L L H L 1 Dark Light H H H H L H H H H H L H H H H H L H L61 H H H H H L H H H H H L H H H H H L L62 White H H H H H H H H H H H H H H H H H H White L63 L L L L H L L L L L H L L L L L H L L 2 L3 L60 LH1226 Page 14

15 1) 6) 3. Recommended Operating Conditions Item Symbol Min. Typ. Max. Unit Remarks Supply Voltage V DD V 3) Differential Input Voltage V ID mv 4) Common Mode Input Voltage V CM V ID /2 V 5) Note 1) The module should be always operated within these ranges. The "Typ." shows the recommendable value. Note 2) Recommended LVDS transmitter THC63LVDF63A, THC63LVDM63A, THC63LVDM63A-85, THC63LVDF83A, THC63LVDM83A, THC63LVDM83A-85 (THine Electronics, Inc.). Panel Controller contains LVDS, which is based on THC63LVDF84A-85 (THine Electronics, Inc.) specification. Note 3) Checked Pin Terminal V DD, GND (GND Vss = 0V ) Note 4) Checked Pin Terminal IN0+/-, IN1+/-, IN2+/-, CLK+/-, GND (0V) Measure V IN0+ - V IN0-, V IN1+ - V IN1-, V IN2+ - V IN2-, V CLK+ - V CLK- Note 5) Checked Pin Terminal IN0+/-, IN1+/-, IN2+/-, CLK+/-, GND (0V) Measure1/2 x (V IN0+ + V IN0- ), 1/2 x (V IN1+ + V IN1- ), 1/2 x (V IN2+ + V IN2- ), 1/2 x (V CLK+ + V CLK- ) Note 6) Please adjust LCD operating signal timing and FL driving frequency, to optimize the display quality. There is a possibility that flicker is observed by the interference of LCD operating signal timing and FL driving condition (especially driving frequency), even if the condition satisfies above recommended operating conditions and timing specifications shown in LH1226 Page 15

16 4. Electrical Characteristics 4.1 Test Conditions Ambient Temperature T a 25±5 C Ambient Humidity H a 65±20%(RH) Supply Voltage V DD 3.3V Input Signal Refer typical value in "2.4.4 Timing Specifications". 4.2 Specifications Item Symbol Min. Typ. 1) Max. Unit Remark Current Consumption I DD ma V DD Terminal Current Note 1) The Typical value of I DD is measured in the following pattern. 1. White 2. Yellow 3. Purple 4. Red 5. Light Blue 6. Green 7. Blue 8. Black Parameter guide line for CFL Inverter Symbol IRCFL Parameter CCFL operation range Min 0 Typ - Max 7.5 Units Condition [ma]rms (Ta=25oC) fcfl CCFL Frequency [KHz] (Ta=25oC) ViCFL (25oC) CCFL Ignition Voltage % [Volt]rms (Ta=25oC) VCFL CCFL Discharge Voltage (Reference) % - [Volt]rms (Ta=25oC) PCFL CCFL Power consumption - - 2W [Watt] (Ta=25oC) LH1226 Page 16

17 5. Optical Characteristics 5.1 Test Conditions It is same as 4.1 The measuring method is shown in Optical Specifications Item Symbol Conditions Specifications Unit MIn. Typ Max. Viewing Angle θ CR>=10 φ = φ = φ = φ= Contrast Ratio CR θ =0, φ= Response Time t ON θ =0, φ= ms t OFF ms Transmittance TR θ =0, φ =0 Gray Scale % Level=L63 (White) Chromaticity Red x R Gray Scale LevelL63 - (0.58) - - y R θ =0, φ =0 - (0.33) - - Green x G Ditto - (0.32) - - y G - (0.53) - - Blue x B Ditto - (0.15) - - y B - (0.12) - - White x W Ditto - (0.32) - - y W - (0.33) - - Luminance nits Remark Define at Contrast Ratio LH1226 Page 17

18 6.Quality 6.1 Inspection AQL Total of Major Defects AQL 0.65 % Total of Minor Defects AQL 1.5 % Sampling Method ANSI/ ASQC Z1.4 (level ll) 6.2 Test Conditions 1) Ambient Temperature 25±5 C 2) Ambient Humidity 65±20%(RH) 3) Illumination Approximately 500 lx under the fluorescent lamp 4) Viewing Distance Approximately 0.35m by the eyes of the inspector from the module 5) Inspection Angle θ=0, φ=0 6.3 Dimensional Outline The products shall conform to the dimensions specified in Definition of Major and Minor defects are as follows. Item Description Class Important Dimensions Dimensional outline Major Others Dimensions specified in this specifications Minor LH1226 Page 18

19 6.4 Appearance Test Test Conditions 1) Condition Non-operating, operating (Pattern L63 white raster) Same as Specifications Item Description Class PCB Appearance Pattern peeling snapping, electrically short Major Repair portion on PCB is not covered by epoxy resign Minor Soldering Cold solder joint, lead move when pulled Major Connectors Distinct stain, rust or scratch Minor Black and White Minor Spots/Lines 1)2) Line Width(mm) Length(mm) Acceptable count W<= neglect 0.10<W<=0.15 n<=8 L<=3 0.15<W<=0.20 n<=2 0.20<W - 3) Average diameter(mm) Acceptable count/side D<=0.20 neglect 0.20<D<=0.50 n<=5 0.50<D 0 Break and Crack of Panel Outside Edge Break less than 2mm inward from cell outside Worsening fine crack reject Minor Note 1) Inspection area should be within active area. Note 2) Dusts which are bigger not less than 0.20mm (0.20 <W) shall be judged by "Average Diameter". Average Diameter D = (a+b )/ 2 (mm) a b LH1226 Page 19

20 6.5 Display Quality Test Conditions 1) Inspection Area Within active area 2) Driving Condition Same as test conditions shown in 4.1 and 6.2 3) Test Pattern White display pattern (gray scale level L63), black display pattern (gray scale level L0), red display pattern (gray scale level L63), green display pattern (gray scale level L63) and blue display pattern (gray scale level L63) Specifications 4) Item Description / Specifications Class Function No display, Malfunction Major Display Quality 1) Missing line Major Missing Sub-Pixels Major 1) Bright defects 5pcs. maximum 2) Dark defects 5pcs. maximum 3) Total sub-pixel defects 8pcs. maximum 4) Bright defects distance 15mm minimum. 5) Dark defects distance 5mm minimum 6) Bright defect conjunction 2sets maximum (2sub-pixels) 7) Dark defect conjunction 2sets maximum (2sub-pixels) Black and White Spots/lines Inconspicuous flicker, crosstalk, Newton's ring and other defects - neglect Inconspicuous defects neglect - Note 1) Defects of both color filter and black matrix are counted as bright or dark defects. Inspection area should be within the active area. Note 2) Bright defect means a bright spot(sub-pixel) on the display pattern of gray scale L0. Dark defect means a dark spot(sub-pixel) on the display pattern of gray scale L63. Note 3) Bright defect which can not be found by using 5%ND-Filter shall not be counted as a defect. LH1226 Page 20

21 6.6 Reliability Test (Reference) Test Conditions 3) 1) The module without backlight should be driven and inspected under normal test conditions. 2) The module without backlight should not have condensation of water (moisture) on the module without backlight. 3) The module without backlight should be inspected after two or more hours storage in normal conditions (15-35 C, 45-65%(RH)). 4) A module without backlight shall be used only for one test Specifications The module without backlight shall have no failure in the following reliability test items. Test Item Test Conditions Result High Temperature Operation 1) 50 C 192 h 3p/3p OK High Temperature Storage 2) 60 C 192 h 3p/3p OK High Temperature and 50 C 80% 192 h 3p/3p OK High Humidity operation 1) Low Temperature Operation 1) 0 C 192 h 3p/3p OK Low Temperature Storage 2) -20 C 192 h 3p/3p OK Temperature Shock 2) -20 C 60 C 3p/3p OK 0.5h 0.5h 50 cycles Note 1) Operating Note 2) Non-Operating Definitions of failure for judgment shall be as follows 1) Function of the module without backlight should be maintained. 2) Current consumption should be smaller than the specified value. 3) Appearance and display quality should not have distinguished degradation. LH1226 Page 21

22 7. Lifetime 7.1 Module without backlight MTTF (Mean Time To Failure) 50,000 h (This value is not assurance time but inference value by following conditions.) Conditions Ambient temperature 25±5 C (No wind) Ambient humidity 65%(RH) 8. Warranty Finish of warranty term is until arrival at your factory. (except defect which is clearly responsible for Litemax Electronics Inc. 9. Measuring Method 9.1 Measuring System Flat light source LCD Module without Backlight Screen Center Photmeter 500 mm LCD Module without Backlight Driving Circuit Light Shielded Room (1) The measurement point is the center of the active area. (2) Photometer BM-7/BM-5A TOPCON (Aperture 2deg.) (3) As flat light source, Toshiba Matsushita Display Technology Co., Ltd. original backlight for LTD121EA4X should be used except for the measurement of transmittance. LH1226 Page 22

23 (4) Definition of φ and θ 9.2 Measuring Methods (1) Transmittance The transmittance can be calculated by the following expression. L LCD Transmittance (TR)= x 100 % L LCD L BL L BL Luminance at the time of putting non-operating cell on light box Luminance of Toshiba Matsushita Display Technology Co., Ltd. standard light box Standard Light Box Fujicolor Lightbox Fluorescence lamp Toshiba-made Mellow 5 (FL10EX-D-H) (2) Contrast Ratio The contrast ratio can be calculated by the following expression. Contrast Ratio (CR) = L63 / L0 L63 Luminance on the white raster (gray scale level L63) L0 Luminance on the black raster (gray scale level L0) (3) Viewing Angle Viewing angle is defined as the angles(θ, φ ), in which specified contrast ratio can be obtained. (Refer to 11.1(3) for the axes.) LH1226 Page 23

24 (4) Chromaticity The values(x,y) of chromaticity coordinates should be measured for the White, Red, Green and Blue Raster(gray scale level L63) each with a photometer. (5) Response Time The response time (ton, toff) is measured with a photo detector (photodiode) which measures the light intensity of the pixels. Input Signal All High (White Display) All Low (Black Display) All High (White Display) Light Intensity 90% 90% 10% 10% t on t on Turn on time is the time for a photo detector output waveform to go from 90% value to 10% of its maximum. t off Turn off time is the time for a photo detector output waveform to go from 10% to 90% of its maximum. t off Photodiode S HAMAMATSU PHOTONICS K.K. White Display White Raster (gray scale level L63) Black Display Black Raster (gray scale level L0) LH1226 Page 24

25 PRECAUTIONS MEANING OF CAUTION SIGNS The following caution signs have very important meaning. Be sure to understand following contents, respectively.! CAUTION This sign has a meaning that customer will be injured himself and/or the module will sustain a damage, if he makes a mistake in operations. This sign has a meaning that customer will get an electric shock if he makes a mistake in operations. This sign has a meaning that customer will be injured himself if he makes a mistake in operations. ATTENTIONS (1) Handling the product When customer pulls out products from carton box, take hold of both ends without touch the circuit board. If customer touches it, products may be broken down and/or out of adjustment, because of stress to mounting parts. If customer places products temporarily, turn down the display side and place on a flat table. Handle products with care and avoid electrostatic discharge (e.g. Decrease with earth band, ionic shower, etc.), because products (LCD modules) may be damaged by electrostatic. The torque for mounting screws should never exceed 0.39N.m. Over torque may cause mechanical damage to the product. Do not press or friction, because LCD panel surface is sensitive. If customer will clean the product surface, LITEMAX Electronics Inc. or their supplier will recommend using the cloth with ethanolic liquid. Does not push-pull the interface Connectors while turn on, because wrong power sequence may break down the product? Connection cables such as flexible cable, and so on, are danger of damage. Do not hook cables nor pull them. (2) Environment Dewdrop atmosphere must be avoided. Do not operate and/or stores in high temperature and/or high humidity atmosphere. If customer stores the product, keep in antistatic pouch in room temperature, because of avoidance for dusts and sunlight. Do not operate in high magnetic field. Circuit boards may be broken down by it. Use an original protection sheet on product surface (polarizer). Adhesive type protection sheet should be avoided, because it may change color and/or properties of the polarizer. (3) Specification for products Do not display the fixed pattern for a long time because it may cause image sticking. If the fixed pattern is LH1226 Page 25

26 displayed on the screen, use a screen saver. The product may be changed of color by viewing angle because of the use of condenser sheet for backlight unit. The product may be changed of luminance by voltage variation, even if power source applies recommended voltage to backlight inverter. Optical characteristics may be changed by input signal timings. (4) Other All GND, GNDB, VDD and VDDB terminals should be connected without a non-connected signal line. Do not disassemble a product and/or adjust volume. If customer would like to replace backlight lamps, see 'REPLACEMENT MANUAL FOR BACKLIGHT'. If customer use screw nails, pay attention not to insert waste materials in inside of products. When customer returns product for repair and so on, pack it with original shipping package because of avoidance of some damages during transportation. General specifications for the LCD The following items are neither defects nor failures. Response time, luminance and color gamut may be changed by ambient temperature. The LCD may be seemed luminance uniformity, flicker, vertical seam and/or small spot by display patterns. Optical characteristics ( e.g. luminance, display uniformity, etc. ) gradually is going to change depending on operating time, and especially low temperature, because the LCD has cold cathode fluorescent lamps. LH1226 Page 26

27 LI2002 Inverter 1. Introduction LI2002 is a CCFL inverter to operate LITEMAX very high brightness (VHB) backlights includes the sunlight readable LCD modules. The inverter has an on-board pulse width modulation (PWM) dimming circuit for extremely wide range luminance adjustment. Over the entire dimming range, there is no noticeable lamp flickering and the uniformity of the backlight is well maintained. When using LI2002 with LiteMax sunlight readable LCD modules, it is not necessary to synchronize the PWM circuit to vertical sync signal of the LCD. 2. Dimming Control The LI2002 accepts a 0-5V analog voltage for dimming control. It has a pulse width modulation (PWM) dimming circuit for luminance adjustment. As the dimming voltage Vd decrease from +5V, the lamp current waveform is pulse width modulated at a repetition rate high enough to prevent LCD flicker. Within each PWM, the lamps in the backlight are turned fully 'ON' for a fraction of the cycle time. The human eyes, being very slow with respect to the PWM rate, respond to the average light produced over the PWM cycle. As a result, the luminance of the backlight and/or the LCD screen is approximately to the duty cycle of the PWM waveform. t ( la m p on) L amp C urren t Wave form T (1 PWM c y c l e ) D uty Cycle = t / T The lamp current waveform with the PWM circuit set at less than 100% LI2002 Inverter page 27

28 In general, inverters with PWM dimming have a very wide luminance adjustment range. For most practical cases, the LI2002 inverter can achieve a dimming ratio up to Hence, the luminance of the backlight or LCD screen can be adjusted from 100% to 0.5%. The 0-5V dimming voltage can be generated simply by a potentiometer, by a digitally controlled UP/DOWN counter or a digital potentiometer. The inverter provides a regulated +5V supply to power the dimming circuit. However, the maximum current drain from this source should be kept less than 5 ma. At a Vd input about 0.34V and less, the duty cycle of the PWM waveform is 0% and thus, the lamps are 'OFF'. In order to fully utilize the available dimming voltage, Vd should be biased to about 0.32V and then ramping up to 5.0V. 3. Electrical Characteristics The LI2002 inverter operates at 12V DC input and can drive up to 8 lamps for a maximum output power about 22 Watts. In addition, the inverter has a regulated +5V output serving as a voltage source for the dimming control circuit. Electrical Characteristics Parameters Min Typ Max Units Conditions Input Vpltage (Vin) Vdc Input current (I) 2.3 Adc Vin=12, Vd=5 V Lamp Starting Voltage (Vst) 1300 Vrms Vin=12, Vd=5 V Frequency (f) Khz ON/OFF Control -OFF Vrms -ON 5 Vrms Dimming 100% Duty Cycle Vdc Max 0% Duty Cycle Vdc Zero brightness 5V Output (+5VOUT) Vdc 11.5<Vin<12.5V 5V Output Source Current 5 ma Absolute Maximum Rating Parameters Min Max Units Inverter Input Voltage (Vin) Vdc Operating Temperature Range 0 50 C Storage Temperature Range C 4. Interface Connector Input Connector ( CN1) Output Connector (CN3 & CN4) Pin# Function PIN # Function 1 5V Output 1, 2, 3 Lamp Connections 2 12V Input 3 12V Input Output Connector (CN2 & CN5) 4 Dimming Control PIN # Function 5 Ground 1 Lamp Connections 6 Ground 2 Empty 7 ON/OFF Control 3 Lamp Common LI2002 Inverter page 28

29 5. Mechanical Characteristics LiteMax Electronics Inc. reserves the right to make changes to this document and the product which it describes without notice. LiteMax Electronics Inc. also shall not be liable for technical or editorial errors or omissions made herein; nor for incidental or consequential damages resulting from the furnishing, performance, or use of this product. In addition, LiteMax Electronics Inc. takes no responsibility for damage caused by improper use of this product which does not meet the conditions for use specified in this specification sheet. LI2002 Inverter page 29

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