DMT028QVHXCMI-1A

TFT DISPLAY MODULE Product Specification Customer Standard Product Number DMT028QVHXCMI-1A Customer Part Number Customer Approval Date: Internal Approvals Product Mgr Doc. Control Electr. Eng Luo Luo Luo Luo David Hardman Date: 01/07/17 Date: 01/07/17 Date: 01/07/17 Revision Record Rev. Date Page Chapt. Comment 1.0 01-July-17 All All Initial Release Product No: DMT028QVHXCMI-1A REV 1.0 ©2017 Densitron Technologies Limited. All rights reserved. Proprietary data ECR no. 2 of 31 Table of Contents 1.0 MAIN FEATURES ................................................................................................... 5 2.0 MECHANICAL SPECIFICATION ............................................................................... 6 2.1 Mechanical Characteristics ....................................................................................................................... 6 2.2 Mechanical Drawing ................................................................................................................................. 7 3.0 ELECTRICAL SPECIFICATION .................................................................................. 8 3.1 Absolute Maximum Ratings ..................................................................................................................... 8 3.1.1 TFT........................................................................................................................................................... 8 3.1.2 PCT .......................................................................................................................................................... 8 3.2 Electrical Characteristics........................................................................................................................... 9 3.2.1 TFT........................................................................................................................................................... 9 3.2.2 PCT .......................................................................................................................................................... 9 3.3 Interface Pin Assignment ....................................................................................................................... 10 3.3.1 TFT Pin Assignment ............................................................................................................................... 10 3.3.2 PCT PIN ASSIGNMENT ........................................................................................................................... 11 3.4 Timing Characteristics ............................................................................................................................ 12 3.4.1 AC Characteristics ................................................................................................................................. 12 3.4.2 Display Serial Interface Timing Characteristics ..................................................................................... 14 3.4.3 Parallel RGB Interface Timing Characteristics ....................................................................................... 16 3.4.4 Reset Timing Characteristics ................................................................................................................. 17 3.5.1 I2C Interface .......................................................................................................................................... 19 4.0 OPTICAL SPECIFICATION ..................................................................................... 20 4.1 Optical Characteristics............................................................................................................................ 20 4.1.1 Test Method.......................................................................................................................................... 21 5.0 BACKLIGHT SPECIFICATION ................................................................................. 22 5.1 LED Driving Conditions ........................................................................................................................... 22 5.2 LED Circuit .............................................................................................................................................. 22 6.0 QUALITY ASSURANCE SPECIFICATION ................................................................. 23 6.1 Delivery Inspection Standards ................................................................................................................ 23 6.1.1 Inspection Conditions ........................................................................................................................... 23 6.1.2 Environmental Conditions .................................................................................................................... 23 6.1.3 Sampling Conditions ............................................................................................................................. 23 Product No: DMT028QVHXCMI-1A REV 1.0 ©2017 Densitron Technologies Limited. All rights reserved. Proprietary data 3 of 31 6.1.4 Definition of Area .................................................................................................................................. 24 6.1.5 Basic Principle ....................................................................................................................................... 24 6.1.6 Inspection Criteria ................................................................................................................................. 25 6.1.7 Classification of Defects ........................................................................................................................ 28 6.1.8 Identification / marking criteria ............................................................................................................ 28 6.2 Dealing with Customer Complaints ........................................................................................................ 29 6.2.1 Non-conforming analysis ...................................................................................................................... 29 6.2.2 Handling of non-conforming displays ................................................................................................... 29 7.0 RELIABILITY SPECIFICATION ................................................................................ 30 7.1 Reliability Tests ...................................................................................................................................... 30 8.0 HANDLING PRECAUTIONS .................................................................................. 31 Product No: DMT028QVHXCMI-1A REV 1.0 ©2017 Densitron Technologies Limited. All rights reserved. Proprietary data 4 of 31 1.0 Main Features Item Contents Screen Size 2.8” Diagonal Display Format 240 x RGB x 320 Dots N° of Colour 65K/262K Active Area 43.20 mm (V) x 57.60 mm (H) PCT View Area 44.20 (V) x 58.60 mm (H) LCD Type TFT Mode Transmissive / Normally Black Viewing Direction ALL TFT Interface 8/9/16/18 bit 8080 MCU 3/4-wire SPI 3/4-wire SPI+16/18 bit RGB PCT Interface I2C TFT Driver IC ST7789V PCT Driver IC FT6236 Simultaneous Touch Points 1 Backlight Type LED Operating Temperature -20°C ~ +70°C Storage Temperature -30°C ~ +80°C RoHS compliant Yes Product No: DMT028QVHXCMI-1A REV 1.0 ©2017 Densitron Technologies Limited. All rights reserved. Proprietary data 5 of 31 2.0 Mechanical Specification 2.1 Mechanical Characteristics Item Characteristic Unit Overall Dimensions 56.10 mm (H) x 77.29 mm (V) x 4.38 mm (D) mm pixel Pitch 180 (H) x 180 (V) µm Weight TBD g Product No: DMT028QVHXCMI-1A REV 1.0 ©2017 Densitron Technologies Limited. All rights reserved. Proprietary data 6 of 31 2.2 Mechanical Drawing Product No: DMT028QVHXCMI-1A REV 1.0 ©2017 Densitron Technologies Limited. All rights reserved. Proprietary data 7 of 31 3.0 Electrical Specification 3.1 Absolute Maximum Ratings 3.1.1 TFT Item Symbol Min Max Unit VCI -0.3 4.6 V IOVCC -0.3 4.6 V Operating Temperature TOP -20 70 °C 1 Storage Temperature TST -30 80 °C 1,2,3 Power Supply Voltage LCM Digital Interface Supply Voltage Condition Note Note 1. 90 % RH Max for Ta