yb lcd displays free sample

In this Arduino touch screen tutorial we will learn how to use TFT LCD Touch Screen with Arduino. You can watch the following video or read the written tutorial below.

As an example I am using a 3.2” TFT Touch Screen in a combination with a TFT LCD Arduino Mega Shield. We need a shield because the TFT Touch screen works at 3.3V and the Arduino Mega outputs are 5 V. For the first example I have the HC-SR04 ultrasonic sensor, then for the second example an RGB LED with three resistors and a push button for the game example. Also I had to make a custom made pin header like this, by soldering pin headers and bend on of them so I could insert them in between the Arduino Board and the TFT Shield.

This graphic LCD module acts as a shield for Arduino Uno-style microcontrollers. The pins on the carrier board match up to the Arduino Uno"s ports, so the module simply presses on and is fully and correctly connected. Plus, this carrier board is able to be connected to either a 3.3v logic level or a 5v logic level device. (Read our blog post if you have questions about logic level.)

1 SPECIFICATION FOR LCD MODULE MODULE NO: YB-TG800480S31A-N-A1 Customer Approval: Accept Reject YEEBO NAME SIGNATURE DATE Prepare Check Verify Approval Electronic Engineer Mechanical Engineer APPROVAL FOR SPECIFICATIONS ONLY APPROVAL FOR SPECIFICATIONS AND SAMPLE WIMRD D Add: 7/F.,On Dak Industrial Building,2-6 Wah Sing Street, Kwai Chung,H.K. Tel: ; Fax:

2 1. Revision History Sample Version DOC. Version DATE DESCRIPTION CHANGED BY A SPEC ONLY First issue Shien / Cfj A Full spec First sample Shien / Cfj A SPEC ONLY Modify LCD&IC Shien / Cfj A Full spec 2 nd Sample Shien / Cfj 1

5 4. General Specification: ITEM Module Size Module Size(With FPC) Display Size (Diagonal) Display Format Active Area Dots Pitch LCD Type View Angle (Gray Inversion) The Best Viewing Direction Controller IC CONTENTS (W) * (H) * 3.71(T) mm (W) * (H) * 3.71(T) mm 7.0 inch 800(RGB)* 480 Pixels (W) * (H) mm * mm TFT (16.7M)/ Transmissive / Normal White 6 O clock 12 O clock EK9716BD4 +EK73002AB Weight 122.6g 4

12 8. Interface Pin Assignment: 8-1 LCM FPC Interface No. Symbol Function 1~2 LED+ Power for LED backlight (Anode) 3~4 LED- Power for LED backlight (Cathode) 5 GND Power ground 6 VCOM Common voltage input. 7 DVDD Power supply. 8 MODE DE/SYNC mode select. Normally pull high H:DE mode. L:HSD/VSD mode 9 DE Data Enable signal 10 VSYNC Vertical sync input. Negative polarity 11 HSYNC Horizontal sync input. Negative polarity 12~19 B7~B0 Blue Data Input 20~27 G7~G0 Green Data Input 28~35 R7~R0 Red Data Input 36 GND Power ground 37 DCLK Data clock Input 38 GND Power ground 39 LCD_LR Left or Right Display Control 40 LCD_UD Up / Down Display Control 41 VGH Positive Power for TFT. 42 VGL Negative Power for TFT. 43 AVDD Analog Power input. 44 RST_LCD_N Global reset pin. Active Low to enter Reset State. (Normally pull high.) Suggest to connecting with an RC reset circuit for stability. 45 NC No connection 46 VCOM Common voltage input. 47 LCD_DITHB Dithering function enable control. (Normally pull high ) DITHB = 1, Disable internal dithering function DITHB = 0, Enable internal dithering function 48 GND Power ground 49 NC No connection 50 NC No connection 11

15 11 Standard Specification for Reliability.: 11-1Standard Specifications for Reliability of LCD Module No Item Description High temperature operation Low temperature operation The sample should be allowed to stand at 70 for 120 hours under driving condition and then returning it to normal temperature condition, and allowing it stand for 2 hours. The sample should be allowed to stand at -20 for 120 hours under driving condition and then returning it to normal temperature condition, and allowing it stand for 2 hours. 03 High temperature storage The sample should be allowed to stand at 80 for 240 hours under no-load condition, and then returning it to normal temperature condition, and allowing it stand for 2 hours. 04 Low temperature storage The sample should be allowed to stand at -30 for 240 hours under no-load condition, then returning it to normal temperature condition, and allowing it stand for 2 hours. 05 Moisture storage The sample should be allowed to stand at 60,90%RH MAX for 240 hours under no-load condition, then taking it out and drying it at normal temperature for 2 hours. 06 Thermal shock storage The sample should be allowed to stand the following 10 cycles : -30 for 30 minutes normal temperature for 5 minutes +80 for 30 minutes normal temperature for 5 minutes, as one cycle. 07 Packing vibration Frequency range : 10Hz ~ 55Hz Amplitude of vibration : 1.5mm X,Y,Z 2 hours for each direction. Sweep time: 12 min 08 Packing drop test According to ISTA 1A Electrical Static Discharge Air: ±6KV 150pF/330Ω 5 times Contact: ±4KV 150pF/330Ω 5 time *Sample size for each test item is 3~5pcs 14

17 12.Specification of Quality Assurance: Purpose This standard for Quality Assurance should affirm the quality of LCD module products to supply to purchaser by YEEBO CORPORATION (Supplier) Standard for Quality Test a. Inspection: Before delivering, the supplier should take the following tests, and affirm the quality of product. b. Electro-Optical Characteristics: According to the individual specification to test the product. c. Test of Appearance Characteristics: According to the individual specification to test the product. d. Test of Reliability Characteristics: According to the definition of reliability on the specification for testing products. e. Delivery Test: Before delivering, the supplier should take the delivery test. (i) Test method: According to ISO General Inspection Level Ⅱ take a single time. (ii) The defects classify of AQL as following: Major defect: AQL = 0.65 Minor defect: AQL = Total defects: AQL = Non- conforming Analysis & Deal With Manners a. Non- conforming Analysis: (i) Purchaser should supply the detail data of non- conforming sample and the nonconforming. (ii) After accepting the detail data from purchaser, the analysis of non- conforming should be finished in two weeks. (iii) If supplier can not finish analysis on time, must announce purchaser before 3 days. b. Disposition of non- conforming: (i) If find any product defect of supplier during assembly time, supplier must change the good product for every defect after recognition. (ii) Both supplier and customer should analyze the reason and discuss the disposition of non- conforming when the reason of nonconforming is not sure Agreement items Both sides should discuss together when the following problems happen. a. There is any problem of standard of quality assurance, and both sides should think that must be modified. b. There is any argument item which does not record in the standard of quality assurance. c. Any other special problem. 16

19 12-6. Inspection specification Defect out of viewing area can be neglected. NO Item Criterion AQL 1.1 Missing vertical, horizontal segment, segment contrast defect. 1.2 Missing character, dot or icon. 1.3 Display malfunction. 1.4 No function or no display. 01 Electrical 1.5 Current consumption exceeds product specifications. Testing 1.6 LCD viewing angle defect. 1.7 Mixed product types Flicker 2.1 Dot dimension as below drawing: Φ = (X+Y) / 2 02 Black or White spots or Bright spots or Color spots on LCD (Display only) 2.2 Not visible through 5% ND filter Size(mm) Acceptable Q"ty Φ 0.20 Accept no dense 0.20< Φ < Φ 0 * Densely spaced: No more than two spots within 3mm. 3.1 Round type: As following drawing Φ = (X+Y) / 2 Size(mm) Acceptable Q"ty Φ 0.20 Accept no dense 0.20< Φ < Φ 0 03 LCD and Touch Panel black spots, white spots, contamination (non display) * Densely spaced: No more than two spots within 3mm. 3.2 Line type: (As following drawing) Length( Width(mm) Acceptable Q"ty mm) L 10 W 0.1 Accept no dense L Rejection

20 NO Item Criterion AQL 04 If bubbles are visible, Size Φ(mm) Acceptable Q"ty judge using black spot Φ 0.20 Accept no dense Polarizer specifications, not easy 0.20< Φ bubbles to find, must check in specify direction 0.50< Φ < Φ 0 Total Q ty 4 05 Scratches Follow NO.3-2 Line Type. 06 Mura Not visible through 5% ND filter in 50% gray. Symbols: x: Chip length y: Chip width z: Chip thickness k: Seal width t: Glass thickness a: LCD side length L: Electrode pad length 7.1 General glass chip: Chip on panel surface and crack between panels: 07 Chipped glass z: Chip thickness y: Chip width x: Chip length Z 1/2t Not over viewing x 1/8a area 1/2t< z 2t Not exceed 1/3k x 1/8a Unit: mm If there are 2 or more chips, x is the total length of each chip Corner crack: z: Chip thickness y: Chip width x: Chip length Z 1/2t Not over viewing x 1/8a area 1/2t< z 2t Not exceed 1/3k x 1/8a Unit: mm If there are 2 or more chips, x is the total length of each chip 19

21 NO Item Criterion AQL Symbols: x: Chip length y: Chip width z: Chip thickness k: Seal width t: Glass thickness a: LCD side length L: Electrode pad length 8.1 Protrusion over terminal: Chip on electrode pad: y: Chip width x: Chip length z: Chip thickness y 0.5mm x 1/8a 0< z t Non-conductive portion: 08 Glass crack y: Chip width x: Chip length z: Chip thickness y L x 1/8a 0< z t If there chipped area touches the ITO terminal, over 2/3 of the ITO must remain and be inspected according to electrode terminal specifications. If the product will be heat sealed by the customer, the alignment mark must mot be damaged Substrate protuberance and internal crack y: width x: length y 1/3L X a 20

22 NO Item Criterion AQL 09 Cracked glass The LCD with extensive crack is not acceptable. 10 Backlight elements 10.1 Illumination source flickers when lit Spots or scratches that appear when lit must be judged. Using LCD spot, lines and contamination standards Backlight doesn t light or color is wrong Bezel Bezel must comply with product specifications. 12 PCB COB 12.1 COB seal may not have pinholes larger than 0.2mm or contamination COB seal surface may not have pinholes through to the IC The height of the COB should not exceed the height indicated in the assembly diagram There may not be more than 2mm of sealant outside the seal area on PCB. And there should be no more than three places. 1 Parts on PCB must be the same as on the production characteristic chart, There should be no wrong parts, missing parts or excess parts The jumper on the PCB should conform to the product characteristic chart FPC 13.1 FPC terminal damage 1/2 FPC terminal width and can not affect the function, we judge accept FPC alignment hole damage 1/2 alignment area and can not affect the function, we judge accept. 14 Soldering 14.1 No cold solder joints, missing solder connections, oxidation or icicle No short circuits in components on PCB or FPC

23 NO Item Criterion AQL Symbols: x: Chip length y: Chip width z: Chip thickness k: Seal width t: Touch Panel Total thickness a: LCD side length L: Electrode pad length 15.1 General glass chip: Chip on panel surface and crack between panels: z: Chip thickness y: Chip width x: Chip length 15 Touch Panel Chipped glass Z t 1/2 k and not over viewing area x 1/8a Unit: mm If there are 2 or more chips, x is the total length of each chip Corner crack: z: Chip thickness y: Chip width x: Chip length z t 1/2 k and not over viewing area x 1/8a Unit: mm If there are 2 or more chips, x is the total length of each chip 22

24 NO Item Criterion AQL 16 Touch Panel(Fish eye) SIZE(mm) Acceptable Q ty L 0.7 Accept no dense L>0.7mm 0 L 17 Touch Panel Newton ring Newton ring dimension 1/2 touch panel area and not affect font and line distortion( %), it is acceptable. 18 Touch Panel Linearity Less than % is acceptable. 19 LCD Ripple Touch the touch panel, can not see the LCD ripple. Pen: R 1.0mm silicon rubber. Operation Force: 80g 20 General appearance 20.1 Pin type must match type in specification sheet LCD pin loose or missing pins Product packaging must the same as specified on packaging specification sheet Product dimension and structure must conform to product specification sheet

25 13. Handling Precaution: 14-1 Handling of LCM Don"t give external shock. Don"t apply excessive force on the surface. Liquid in LCD is hazardous substance. Must not lick and swallow. when the liquid is attach to your hand, skin, cloth etc. Wash it out thoroughly and immediately. Don"t operate it above the absolute maximum rating. Don"t disassemble the LCM. The operators should be grounded whenever he/she comes into contact with the module. Never touch any of the conductive parts such as the LSI pads,the copper leads on the PCB and the interface terminals with any parts of the human body. The modules should be kept in antistatic bags or other containers resistant to static for storage. The 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 Storage Store in an ambient temperature of 25±10, and in a relative humidity of 50±10%RH. Don"t expose to sunlight or fluorescent light. Storage in a clean environment, free from dust, active gas, and solvent. Store in anti-static electricity container. Store without any physical load Soldering Use only soldering irons with proper grounding and no leakage. Iron: No higher than 280±10 and less than 3 sec during Hand soldering. Rewiring: no more than 2 times. 14. Guarantee: Our products meet requirements of the environment. YEEBO ROHS requirement is based on European Union Directive 2011/65/EU (ROHS) Requirements and Update. 24