2.8 inch Capacitive Touchscreen Round TFT Moudle Description
TS8028WV001-T is a color active matrix TFT (thin film transistor)
LCD (liquid crystal display) that uses amorphous silicon TFT as the
switching device. This model consists of a transmissive TFT-LCD
panel, driver circuit, and backlight unit. The resolution of
2.8-inch round TFT-LCD is 480 * 480 pixels, and it can display up
to 16.7 million colors.
This product has the characteristic of low input voltage, VDD:
2.7~3.6V. Due to the use of IPS technology, the product has an 80
degree viewing angle from any direction. The product uses RGB 18BIT
values as the CPU interface and is equipped with an internal power
circuit. This product is designed with a capacitive touch screen
(CTP), which is more convenient to use and provides users with a
very good experience.
Features
| General Information Items | Specification | Unit |
| Main Panel |
| Display area(AA) | 70.128(H) *70.128(V) (2.8inch ) | mm |
| Driver element | a-Si TFT active matrix | - |
| Display colors | 16.7M | colors |
| Number of pixels | 480(RGB) *480 | dots |
| Pixel arrangement | RGB vertical stripe | - |
| Pixel pitch | 0.180(H) *0.180(V) | mm |
| Viewing angle | ALL | o'clock |
| Drive IC | ST7701S | - |
| Color Pixel Arrangement | RGB vertical stripe | |
| Display mode | Transmissive/ Normally Black | - |
| Operating temperature | -20～+70 | ℃ |
| Storage temperature | -30～+80 | ℃ |
Mechanical Information
| Item | Min. | Typ. | Max. | Unit | Note |
| Module size | Horizontal(H) | - | 86.7 | - | mm | -0.1 |
| Vertical(V) | - | 86.7 | - | mm | -0.1 |
| Depth(D) | - | 4.19 | - | mm | ±0.3 |
| Weight | - | TBD | - | g | - |
2.8 inch 480x480 Round TFT LCD Display Module Drawing
PIN Description
| Pin NO. | Symbol | Level | Function |
| 1 | LEDA | H | Backlight+ |
| 2 | LEDK1 | L | Backlight- |
| 3 | LEDK2 | L | Backlight- |
| 4 | LEDK3 | L | Backlight- |
| 5 | LEDK4 | L | Backlight- |
| 6 | VDD 2.8V | H | Power supply(2.5-3.3V) |
| 7 | IOVCC1.8V | H | Power supply(1.65-3.3V) |
| 8 | LCM RST | H/L | LCM Hardware reset pin |
| 9 | TE | H/L | Tearing effect output |
| 10 | PWM | H/L | Backlight on/off control pin. |
| 11 | GND | L | Ground |
| 12 | D0P | H/L | HSSI_D0+ are differential data signal line. |
| 13 | D0N | H/L | HSSI_D0- are differential data signal line. |
| 14 | GND | L | Ground |
| 15 | D1P | H/L | HSSI_D1+ are differential data signal line. |
| 16 | D1N | H/L | HSSI_D1- are differential data signal line. |
| 17 | GND | L | Ground |
| 18 | CP | H/L | HSSI_CLK+ are differential data signal line. |
| 19 | CN | H/L | HSSI_CLK- are differential data signal line. |
| 20 | GND | L | Ground |
| 21 | NC | | NC |
| 22 | GND | L | Ground |
| 23 | NC | | NC |
| 24 | GND | L | Ground |
| 25 | TP-INT | H/L | Interrupt pin |
| 26 | TP-SDA | H/L | Serial data input pin |
| 27 | TP-SCL | H/L | Serial clock input |
| 28 | TP-REST | H/L | TP Hardware reset pin |
| 29 | TP-VCC | H/L | Power supply 2.8V |
| 30 | GND | L | Ground |
ABSOLUTE MAXIMUM RATINGS
Item | Symbol | Values | Unit |
| Min | Max. |
| Supply Voltage for Logic circuit | IOVCC | -0.3 | 4.6 | V |
| Supply Voltage for analog circuit | VCI | -0.3 | 4.6 | V |
DC ELECTRICAL CHARACTERISTICS
Item | Symbol | Values | Unit | Remark |
| Min | Typ | Max. |
| Power Supply | VCC | 2.7 | 2.8 | 3.3 | V | |
| Normal mode Current consumption | Icc | - | - | 55 | mA | VCC=2.8V |
| TFT Gate ON Voltage | VGH | 11.5 | 12 | 16 | V | |
| TFT Gate OFF Voltage | VGL | -8 | -12 | -12 | V | |
BACKLIGHT UNIT CHARACTERISTICS
Item |
Symbol | Values |
Unit |
Remark |
| Min | Typ | Max. |
| Forward supply Voltage | Vf | 2.7 | - | 3.3 | V | |
| Forward supply Current | If | - | 80 | - | mA | |
| LCM Luminance | LV | 220 | 250 | - | cd/m2 | IB=80mA |
| Uniformity | / | 80 | | | % | - |
2.8 inch 480x480 Round TFT LCD Display Module Product Image
RELIABILITY TEST
Test Item |
Test Condition
| Inspection after test |
| High Temperature Operation | 70℃ for 96 hours | After the Testing is completed, the tested LCD samples must be
placed in a normal indoor temperature and humidity environment for
2-4 hours or more before functional and visual inspection. The
samples are not allowed to have the following defects:
1. Poor functionality, such as missing display, abnormal display,
severe light explosion, etc. 2. There are no polarizing film
bubbles, OCA bubbles, or other defects in the appearance. 2. Each tested module can only be used for one of the testing
projects |
| Low Temperature Operation | -20℃ for 96 hours |
| High Temperature Storage | 80℃ for 96 hours |
| Low Temperature Storage | -30℃ for 96 hours |
| High Temperature Operation Humidity Operation | 60℃, 90%RH for 72 hours |
| Thermal Shock | -10℃(30min) ~+25℃(5min)~ +60℃(30min) for 10 cycles |
| Vibration Test (No Operation) | Frequency: 10~55Hz Amplitude:1.0mm Sweep Time: 11min Test Period: 6 Cycles for each direction of X, Y, Z |
Static electricity test | Touch ±4KV,air touch ±8KV |
Factory Facilities and Certificates
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