Circular Display, 3.4" Circular Screen TFT LCD Display
Model No. WF0340ATYAB7MNN0
►Circular Display
►Size: 3.4 inch
►Resolution : 800 x 800 dots
►View Direction : Wide View (IPS)
►Interface : MIPI DSI
►Driver IC : ILI9881C
►Control-Board : No
►Brightness(cd/m2) : 300
►Frame Through Hole : No
►Touch Screen : No
Description
WF0340ATYAB7MNN0 is a 3.4-inch Circular Screen IPS TFT Display with a resolution of 800x800 dots. It uses IPS (In-plane Switching) technology to achieve fast and stable response time, higher frequency transmittance, and better color performance. The most significant advantage of IPS is the wider viewing angles of up: 85/ down: 85/ left: 85/ right: 85 degrees. This circular TFT display has the module dimensions of 94.9 x 96.95 mm and the active area of 87.6 x 87.6 mm. It boasts a built-in ILI9881C driver IC, supporting 4-wire MIPI interfaces. The contrast ratio of the module is 1200:1, the brightness is 300cd/m2 (typical value), the analog circuit voltage is 3.3V (typical value), and the logic circuit voltage is 1.8V.
The operating temperature range of this 3.4" LCD is from -20℃ to +70℃, and the storage temperature range covers from -30℃ to +80℃. The circular TFT LCD display is suitable for home appliances, electronic alarm clocks, cocktail machines, and other products requiring circular display screens.
WO128128A | WO128128A2 | WEO128128B | WEO128128D-CTP | WF0128BTYAA4DNN0 | WF0128BTYAA4DNF10 | WF0340ATYAB7MNN0
DRAWING
SPECIFICATIONS
Interface
LCM PIN Definition
| Pin | Symbol | Function |
|---|---|---|
| 1 | VLED+ | VLED backlight anode. |
| 2 | VLED- | VLED backlight cathode. |
| 3 | VLED- | VLED backlight cathode. |
| 4 | VCI | Power supply for the analog power |
| 5 | IOVCC | Power supply for the logic power and I/O circuit (IOVCC = VDDI) |
| 6 | RESET | Reset signal(low active) (RESET=RESX) |
| 7 | TE | Tearing effect output |
| 8 | NC | No connection |
| 9 | GND | Power ground |
| 10 | D0P | MIPI-DSI data lane 0 positive input pin. |
| 11 | D0N | MIPI-DSI data lane 0 negative input pin |
| 12 | GND | Power ground |
| 13 | D1P | MIPI-DSI data lane 1 positive input pin. |
| 14 | D1N | MIPI-DSI data lane 1 negative input pin. |
| 15 | GND | Power ground |
| 16 | CLKP | MIPI-DSI data lane positive input pin. |
| 17 | CLKN | MIPI-DSI data lane negative input pin. |
| 18 | GND | Power ground |
| 19 | D2P | MIPI-DSI data lane 2 positive input pin. |
| 20 | D2N | MIPI-DSI data lane 2 negative input pin |
| 21 | GND | Power ground |
| 22 | D3P | MIPI-DSI data lane 3 positive input pin. |
| 23 | D3N | MIPI-DSI data lane 3 negative input pin |
| 24 | GND | Power ground |
| 25-30 | NC | No connection |
General Specifications
| Item | Dimension | Unit |
|---|---|---|
| Size | 3.4 | inch |
| Pixel Number | 800 × RGB × 800 (TFT) | dots |
| Module dimension | 94.9 (W) x 96.95 (H) x 2.22 (D) | mm |
| Active Area | 87.6 x 87.6 | mm |
| Pixel Pitch | 0.1095 x 0.1095 | mm |
| LCD type | TFT, Normally black, Transmissive | |
| Viewing Angle | 85/85/85/85 | |
| Driver IC | ILI9881C | |
| TFT Interface | 4-Lanes MIPI | |
| Backlight Type | LED, Normally White | |
| Touch Panel | Without Touch Panel | |
| Surface | Anti-Glare | |
Absolute Maximum Ratings
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Operating Temperature | TOP | -20 | － | +70 | ℃ |
| Storage Temperature | TST | -30 | － | +80 | ℃ |
| Power Supply voltage 1 | VCI~GND | >-0.3 | － | +3.6 | V |
| Power Supply voltage 2 | IOVCC~GND | -0.3 | － | +3.3 | V |
| Logic Input Voltage Range | VIN | -0.3 | － | IOVCC+0.3 | V |
| Logic Output Voltage Range | VO | -0.3 | － | IOVCC+0.3 | V |
Electrical Characteristics
| Item | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply voltage for analog circuit | VCI | 2.5 | 3.3 | 3.6 | V |
| Supply voltage for logic circuit | IOVCC | 1.65 | 1.8 | 3.3 | V |
| Current for VCI | I-vci | - | 20 | 30 | mA |
| Current for IOVCC | I-iovcc | - | 20 | 30 | mA |
| Input voltage “H” level | VIH | 0.7*IOVCC | － | IOVCC | V |
| Input voltage “L” level | VIL | GND | － | 0.3*IOVCC | V |
| Output voltage “H” level | VOH | 0.8*IOVCCI | － | IOVCC | V |
| Output voltage “L” level | VOL | GND | － | 0.2*IOVCC | V |
