3.9" 480x128 Top View Direction Stretched PCAP TFT LCD Display
Model No. WF39CTIASDNG0
►Size : 3.9"
►Resolution : 480×128 dots
►View Direction : 12H
►Interface : RGB
►Driver IC: HX8278-A
►Control-Board : No
►Brightness(cd/m²) : 400
►Frame Through Hole : No
►Touch Screen : Projected capacitive touch panel (PCAP)
►Detect Point : 5 Fingers
Description
WF39CTIASDNG0 is a 3.9 inch Top View Bar TFT module with Projected Capacitive Touch Panel (PCAP) which featured with 480x128 dots resolution. WF39CTIASDNG0 is built in with Driver IC HX8278-A, it communicates via 24-bit RGB interface, 3.3V (typical) power supply voltage, supports SYNC mode or DE mode, default SYNC mode. Its brightness is 400 nits; contrast ratio of 500, view direction 12 o'clock (top view direction), gray scale inversion direction 6 o'clock, and glare surface glass. It can be operating at temperatures from -20℃ to +70℃, its storage temperatures range from -30℃ to +80℃.
We also offer Resistive Touch Panels (RTP) and High Brightness version optional for WF39C model. WF39C is top-view direction TFT module, if customers require bottom-view (6 o'clock), please choose WF39B series Bar TFT model.
DRAWING
SPECIFICATIONS
Interface
LCM PIN Definition
No. | Symbol | Description |
---|---|---|
1 | VLED- | Backlight LED Cathode |
2 | VLED+ | Backlight LED Anode. |
3 | GND | System Ground |
4 | VCC | Power supply for logic operation |
5~12 | R0~R7 | Data bus |
13~20 | G0~G7 | Data bus |
21~28 | B0~B7 | Data bus |
29 | GND | System Ground |
30 | DCLK | Pixel clock signal |
31 | DISP | Display on/off control |
32 | HSYNC | Horizontal Sync signal |
33 | VSYNC | Vrtical Sync signal |
34 | NC | No connection (Option DE) |
35 | NC | No connection |
36 | GND | System Ground |
37 | NC | No connection |
38 | NC | No connection |
39 | NC | No connection |
40 | NC | No connection |
PCAP PIN Definition
Pin | Symbol | Function |
---|---|---|
1 | VSS | Ground for analog circuit |
2 | VDDT | Power Supply : +3.0V |
3 | SCL | I2C clock input. |
4 | NC | No connect |
5 | SDA | I2C data input and output |
6 | NC | No connect |
7 | /RST | External Reset, Low is active |
8 | NC | No connect |
9 | /INT | External interrupt to the host |
10 | VSS | Ground for analog circuit |
General Specifications
Item | Dimension | Unit |
---|---|---|
Size | 3.9 | inch |
Dot Matrix | 480 ×128 × RGB (TFT) | dots |
Module dimension | 105.5(W) × 37.0(H) × 5.2(D) | mm |
Active area | 95.04 × 25.34 | mm |
Dot pitch | 0.066(W) × 0.198(H) | mm |
LCD type | TFT, Normally White, Transmissive | |
View Direction | 12 o'clock | |
Gray Scale Inversion Direction | 6 o'clock | |
Aspect Ratio | Bar Type | |
Driver IC | HX8278-A or equivalent | |
TFT Interface | RGB-24BIT | |
Backlight Type | LED, Normally White | |
CTP IC | CYTM568 or equivalent | |
CTP FW Version | 0x0001 | |
Touch Screen | Projected capacitive touch panel (PCAP) | |
Surface | Glare |
Absolute Maximum Ratings
Item | Symbol | Min | Typ | Max | Unit |
---|---|---|---|---|---|
Operating Temperature | TOP | -20 | - | +70 | ℃ |
Storage Temperature | TST | -30 | - | +80 | ℃ |
Electrical Characteristics
Operating conditions
Item | Symbol | Condition | Min | Typ | Max | Unit |
---|---|---|---|---|---|---|
Supply Voltage For LCM | VCC | - | 3.0 | 3.3 | 3.6 | V |
Supply Current For LCM | ICC | - | - | 15 | 25 | mA |
Supply Voltage For Touch Logic | VDDT | - | 2.8 | 3.5 | mA |
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