SPECIFICATION FOR CSTN LCD MODULE

Transcription

1 SPECIFICATION FOR CSTN LCD MODULE MODEL NO: TM128128A4KFWGWC55-1 CUSTOMER: CUSTOMER P/N. VERSION V1.2 CUSTOMER APPROVED Preliminary Specification Final Specification PREPARED CHECKED VERIFIED BY QA DEPT VERIFIED BY R&D DEPT TIANMA MICRO-ELECTRONICS CO., LTD Address: 8F,64th Building,Jinlong,Majialong Industrial Area, Nanshan District, Shenzhen, China Tel: Fax: Web:

2 REVISION RECORD Date Rev.No. Page Revision Items Prepared V0.0 The first release YEDAWEN V0.1 4 Update 1. General Specifications Add Circuit Block Diagram Update Outline Drawing Update Electrical characteristics Update LED backlight specification Update Optical Characteristics Update Reliability Test Items and Criteria YEDAWEN 24 Update Inspection Items and Criteria V V ,5, V Update 1. General Specifications Update Outline Drawing Update Electrical characteristics Update Interface Signals Update VDD to 2.6V~3.0v Add module name Update Outline Drawing Update Circuit Block Diagram YEDAWEN YEDAWEN YEDAWEN V Update Outline Drawing Update Electrical characteristics YEDAWEN V V Update the view angle and test method Add the note 2 Update Outline Drawing YEDAWEN YEDAWEN V Update Optical Characteristics YEDAWEN - 2 -

3 CONTENTS Page 1.General Specifications Outline Drawing Circuit Block Diagram Absolute Maximum Ratings Electrical Specifications and Instruction Code Optical Characteristics Reliability Test Items and Criteria Quality level Precautions for Use of LCD Modules

4 1. General Specifications TM128128A4KFWGWC55-1 is a color STN-LCD module. It is composed of a color STN-LCD panel, driver IC, FPC, a back light unit. The1.44 display area contains 128 x 128 pixels and can display up to 65K colors. Item Contents Unit Note LCD Type CSTN - Display color 65K 1 LCD Duty 1/128 - LCD Bias 1/12 - Viewing Direction 12:00 O Clock 2 Active Area(W H) x mm View Area(W H) x 28.2(MIN) mm Number of Dots 128(RGB) 128 mm Dot Size(W H) mm Dot Pitch(W H) mm Controller ST7687S - V DD 2.8 V Vop 14.0 V Outline Dimensions Refer to outline drawing on next page Backlight 1-LEDs (white) - Weight - g Data Transfer 4 line serial - Polarizer Mode Transmissive/negative - Note 1: Color tune is slightly changed by temperature and driving voltage. Note 2: Modules in the 12:00 o'clock direction of customers have best view angle, but the direction of LCD actually is 9:00. Note 3: Customer should do assembly according to our FPC bending sketch in the outline drawing. Note 4: Please approve our spec before placing mass production order. Otherwise we will regard customer has approved the spec when we receive the first 2Kpcs or above order from customer

5 R R R R MODEL No.: TM128128A4KFWGWC55-1 V Outline Drawing (13.00) 38±0.2(BL) 35.60±0.2(LCD) 31.00±0.2(LCD) 28.20MIN(V.A) 1.00 (2.40) ±0.1(A.A) (3.100) (3.436) (2.13) P1.0X(14-1)=13± ± (8.80) Bending Area 8.00(MIN) ±0.1 (A.A.) 28.10MIN (V.A.) 30.90±0.2(LCD) 32.36±0.2(BL) 1.60(MIN) REMOVE TAPE 1 1 G-2 TM128128A4KFWGWC55-1 NOTE: Modules in the 12:00 o'clock direction of customers, 1 but the direction of LCD is actually 9:00. BLU CIRCUIT DIAGRAM SI SCL G B R G B VM VSS VD1 VDD /CS /RES A0 R G B VG XV0 V0 1 2 LEDA LEDK I/O Definition 0.13± ±0.1 Reference Dimension For Customer's Locating Hole ?0.8±0.1(N.P.TH) 1.0(MAX) Black UV Tape 6.10± ±0.15 (11.00) 14 1 (9.68) 37.2± (29.00) Bending Sketch Map (3-1.50) 2.75(MAX) with D.S.T 1.00±0.1 without D.S.T 3-?0.8± (28.76) 29.76±

6 3. Circuit Block Diagram D15 D0 DOTS:128*128 ST7687S - 6 -

7 4. Absolute Maximum Ratings(Ta=25 ) Item Symbol Min. Max. Unit Note Power Supply Voltage V DD V Logic Signal Input /Output Voltage Power Supply Voltage for LCD V IOVCC V Vop 0 18 V 1,2 Operating Temperature Top Storage Temperature Tst Notes: 1. If the module is above these absolute maximum ratings. It may become permanently damaged. Using the module within the following electrical characteristic conditions are also exceeded, the module will malfunction and cause poor reliability. 2. V DD >V SS must be maintained

8 5. Electrical Specifications and Instruction Code 5.1 Electrical characteristics(vss=0v,ta=25 ) Parameter Symbol Condition Min Typ Max Unit Note Operation voltage Power supply for analogy V OP Ta= V 1 VDD Ta= V Note: Input voltage Current Consumption H V IH V DD =2.8V 0.7V DD - V DD V L V IL V DD =2.8V Vss - I CC1 I CC2 Normal mode Standby mode 1: IC default setting, Duty:1/128. 2:Display full white except Backlight, the default voltage is 2.8V, 3: IC on standby mode(display off, backlight off). 0.3V D ma ma 3 D V - 8 -

9 5.2 LED backlight specification(vss=0v,ta=25 ) Item Symbol Condition Min Typ Max Unit Not e Supply voltage V Supply current I f V f =3.2V ma Forward current Normal I pn chip Dimming - I pd ma Uniformity Color coordinate Bp 70% 80% - X I f =20mA Y

10 5.3 Interface Signals Pin No. Symbol I/O Function 1 LEDA Pow Power for backlight 2 LEDK Pow Supply ground for backlight 3 VG I/O Connect to capacitor between VSS 4 XV0 I/O Connect to capacitor between V0 5 V0 I/O Connect to capacitor between XV0 6 VM I/O Connect to capacitor between VSS 7 VSS Pow Supply ground 8 VD1 I/O Connect to capacitor between VSS 9 VDD Pow Power supply 10 /CSB I Chip select: Low active 11 /RES I Reset pin: Low active 12 A0 I Data / Instruction select input pin 13 SI I serial input data 14 SCL I Serial clock input LEDA LEDK VG XV0 V0 VM VSS VD1 VDD /CS /RES A0 SI SCL C1 C2 C3 C4 C1,C3:1uF,16V C2:1uF,25V C4:1uF,16V(optional)

11 5.3 Interface Signals(continued) 5.4 Interface Timing Chart Note: Please refer to Sitronix s ST7687Sdata sheet for more details. Sitronix s ST7687S INTERFACE PROTOCOL Inter 8-bit serial (4 line) system CPU interface

12 INSTRUCTION DESCRIPTION(Sitronix s ST7687S) MODEL No.: TM128128A4KFWGWC55-1 V

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16 Please refer to Sitronix s ST7687S data sheet for more details to drive the module

17 6. Optical Characteristics Item Symbol Condition Min. Typ. Max. Unit Note Brightness Bp θ= Cd/m 2 1 Uniformity Bp Φ=0 70% - - 1,2 Ф=90 50 Viewing Angle Ф=270 Cr 2 40 Ф=0 25 Deg 3 Contrast Ratio Response Time Ф= Cr θ=0 T r Φ= ms ms T f W x y Color of CIE Coordinate NTSC Ratio R G B S x y x θ= y Φ= x y Life time h % - 1,6 Note:The parameter is slightly changed by temperature, driving voltage and materiel All optical Characteristics is tested by TIANMA s measurement equipment. Note 1: The data are measured after LEDs are turned on for 5 minutes. LCM displays full white. The brightness is the average value of 9 measured spots. Measurement equipment PR-705 (Φ8mm) Measuring condition:

18 - Measuring surroundings: Dark room. - Measuring temperature: Ta=25. - Adjust operating voltage to get optimum contrast at the center of the display. Measured value at the center point of LCD panel after more than 5 minutes while backlight turning on. Note 2: The luminance uniformity is calculated by using following formula. Bp = Bp (Min.) / Bp (Max.) 100 (%) Bp (Max.) = Maximum brightness in 9 measured spots. Bp (Min.) = Minimum brightness in 9 measured spots. The luminance uniformity is tested when background is all black. Testing spot is 3 mm Note 3: The definition of viewing angle: Refer to the graph below marked by θ and Ф

19 Note 4: Definition of contrast ratio.( Test LC M using PR-705) Contrast ratio ( Cr) = Brightness Brightness of of selected dots non selected dots Note 5: Definition of Response time. (Test LCD using DMS501): The output signals of photo detector are measured when the input signals are changed from black to white (falling time) and from white to black (rising time), respectively. The response time is defined as the time interval between the 10% and 90% of amplitudes.refer to figure as below. The definition of response time

20 Note 6: Definition of Color of CIE Coordinate and NTSC Ratio. Color gamut: area of RGB triangle S = 100% area of NTSC triangle

21 7. Reliability Test Items and Criteria No Test Item Test condition Criterion 1 High Temperature Storage 2 Low Temperature Storage 3 High Temperature Operation 4 Low Temperature Operation High Temperature/Humidity 5 Operation 6 Temperature Cycle 80 ±2 240H Restore 2H at 25 Power off -30 ±2 240H Restore 2H at 25 Power off 70 ±2 96H Restore 2H at 25 Power on -20 ±2 96H Restore 2H at 25 Power on 60 ±2 90%RH 96H Power on min 5min 30min after 10cycle, Restore 2H at 25 Power off 1. After testing, cosmetic and electrical defects should not happen. 2.Total current consumption should not be more than twice of initial value. 7 Vibration Test 10Hz~150Hz, 100m/s 2, 120min 8 Shock Test Half- sine wave,300m/s 2,11ms Not allowed cosmetic and electrical defects. 9 Drop Test(package state) concrete floor,1corner, 3edges, 6 sides each time, and the height is as follow(the cross weight is about 4Kg): 1.After testing, cosmetic and electrical defects should not happen. 2.the product should remain at initial place 3.Product uncovered or package broken is not permitted. Note:Additional test Item proposed by customer shall be determined by mutual agreement between customer and Tianma

22 8 Quality level 8.1 Classification of defects Major defects (MA): A major defect refers to a defect that may substantially degrade usability for product applications, including all functional defects(such as no display, abnormal display, open or missing segment, short circuit, missing component), outline dimension beyond the drawing, progressive defects and those affecting reliability. Minor defects (MI): A minor defect refers to a defect which is not considered to be able to substantially degrade the product application or a defect that deviates from existing standards almost unrelated to the effective use of the product or its operation, such as black spot, white spot, bright spot, pinhole, black line, white line, contrast variation, glass defect, polarizer defect, etc. 8.2 Definition of inspection range For dot defect of TFT LCD which is not smaller than 3 inches, dividing three areas to make a judgment (according to figure 1). A area : center of viewing area B area : periphery of viewing area C area : Outside viewing area For other defects, dividing two areas to make a judgment (according figure 2). A zone : Inside Viewing area B zone : Outside Viewing area X1(A.A~V.A): 2mm X2(A.A~V.A): 2mm Y1(A.A~V.A): 2mm Y2(A.A~V.A): 2mm 8.3 Inspection items and general notes General notes Viewing Area Figure 1 X1 B zone X2 Active Area(AA) Y2 Y1 A zone: Viewing Area(VA) Figure 2 1Should any defects which are not specified in this standard happen, additional standard shall be determined by mutual agreement between customer and TIANMA. 2Viewing area should be the area which TIANMA guarantees. 3Limit sample should be prior to this Inspection standard. 4Viewing judgment should be under static pattern. 5Inspection conditions Inspection distance: 250 mm (from the sample) Temperature : 25±5 ºC Inspection angle : 45 degrees in 12 o clock direction (all defects in viewing area should be inspected from this direction) Inspection items Pinhole, Bright spot, Black spot, White spot, Black line, White Line, Foreign particle, Bubble Contrast variation The color of a small area is different from the remainder. The phenomenon doesn t change with voltage The color of a small area is different from the remainder. The phenomenon changes with voltage

23 Polarizer defect Dot defect (TFT LCD) Functional defect Glass defect PCB defect Scratch, Dirt, Particle, Bubble on polarizer or between polarizer and glass The pixel appears bright or dark abnormally when display No display, Abnormal display, Open or missing segment, Short circuit, False viewing direction Glass crack, Shaved corner of glass, Surplus glass Components assembly defect 8.4 Outgoing Inspection level Outgoing Inspection standard Inspection conditions Inspection Min. Max. Unit IL AQL Major Defects See 8.3 general notes See 8.5 II 0.65 Minor Defects See 8.3 general notes See 8.5 II 1.5 Note:Sampling standard conforms to GB Inspection Items and Criteria Inspection items Judgment standard Category Acceptable number A zone B zone A Φ 0.10 Neglected 1 Black spot, White spot, Bright Spot, Pinhole, Foreign Particle, Particle in or on glass, Scratch on glass a b Φ=(a+b)/2(m B 0.10<Φ C 0.15<Φ D 0.20<Φ 0 Neglected Total defective point(b,c) 3 2 Black line, White line, and Particle Between Polarizer and glass, Scratch on glass W: Width L:Length(mm) A W 0.01 Neglected B C 0.01<W 0.03 L <W 0.05 L Neglected D 0.05<W

24 Total defective point(b,c) 3 Contrast variation A Φ 0.2 Neglected 3 a Φ=(a+b)/2(mm) b B 0.2<Φ C 0.3<Φ D 0.4<Φ 0 Neglecte d Total defective point(b,c) 3 4 Bubble inside cell any size none none Scratch,damage on polarizer, Particle on polarizer or between polarizer and glass. Refer to item 1 and item 2. 5 Polarizer defect (if Polarizer is used) Bubble, dent and convex A Φ 0.3 Neglected B 0.3<Φ C 0.5<Φ 0 Neglecte d Stage surplus glass b b 0.3mm 6 Surplus glass Surrounding surplus glass Should not influence outline dimension and assembling Open segment or open common Short circuit False viewing direction Contrast ratio uneven Crosstalk Not permitted Not permitted Not permitted According to the limit specimen According to the limit specimen 12 Black /White spot(display) Refer to item

25 13 Black /White line(display) Refer to item 2 14 Glass defect crack Inspection items 1 The front of lead terminals b A Judgment standard Category(application: B zone) a t, b 1/5W, c 3mm Acceptable number Max.3 defects allowed w t a c B Crack at two sides of lead terminals should not cover patterns and alignment mark 2Surrounding crack non-contact side seal t c b a b < Inner borderline of the seal Inner border line of the seal Outer border line of the seal 3 Surrounding crack contact side seal t c b a b < Outer borderline of the seal Inner border line of the seal Outer border line of the seal 4 Corner A a t, b 3.0, c

26 B Glass crack should not cover patterns u and alignment mark and patterns. a t w b c Inspection items Judgment standard Category(application: B zone) Component soldering: Component No cold soldering short open circuit burr tin ball 15 PCB defect The flat encapsulation component position deviation must be less than 1/3 width of the pin (Pic.1); L W/2 Soldering pad Lead W Component the sheet component deviation: Pin deviates from the pad and contact with the near components is not permitted(pic.2) L2>0 L1>0 lead defect: The lead lack must be less than 1/3 of its width; The lead burr must be less than 1/3 of the seam; Impurities connect with the near leads is not permitted Connector soldering: Soldering tin is at contact position of the plug and socket is not permitted No foundation is scald head Base Board Soldering tin is not permit in this area Serious cave distortion on plug and socket contact pin is not permitted Soldering tin is not permit in this area socket Base Board

27 Glue on root of the speaker receiver and motor lead: The insulative coat of the lead must join into the PCB; the protected glue must envelop to the insulative coat. Glue PCB Insulative coat Lead 9. Precautions for Use of LCD Modules 9.1 Handling Precautions The display panel is made of glass. Do not subject it to a mechanical shock by dropping it from a high place, etc If the display panel is damaged and the liquid crystal substance inside it leaks out, be sure not to get any in your mouth, if the substance comes into contact with your skin or clothes, promptly wash it off using soap and water Do not apply excessive force to the display surface or the adjoining areas since this may cause the color tone to vary The polarizer covering the display surface of the LCD module is soft and easily scratched. Handle this polarizer carefully If the display surface is contaminated, breathe on the surface and gently wipe it with a soft dry cloth. If still not completely clear, moisten cloth with one of the following solvents: Isopropyl alcohol Ethyl alcohol Solvents other than those mentioned above may damage the polarizer. Especially, do not use the following: Water Ketone Aromatic solvents Do not attempt to disassemble the LCD Module If the logic circuit power is off, do not apply the input signals

28 9.1.8 To prevent destruction of the elements by static electricity, be careful to maintain an optimum work environment. a. Be sure to ground the body when handling the LCD Modules. b. Tools required for assembly, such as soldering irons, must be properly ground. c. To reduce the amount of static electricity generated, do not conduct assembly and other work under dry conditions. d. The LCD Module is coated with a film to protect the display surface. Be care when peeling off this protective film since static electricity may be generated. 9.2 Storage precautions When storing the LCD modules, avoid exposure to direct sunlight or to the light of fluorescent lamps The LCD modules should be stored under the storage temperature range. If the LCD modules will be stored for a long time, the recommend condition is: Temperature : 0 ~ 40 Relatively humidity: 80% The LCD modules should be stored in the room without acid, alkali and harmful gas. 9.3 The LCD modules should be no falling and violent shocking during transportation, and also should avoid excessive press, water, damp and sunshine