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 800×800 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.

Round Display

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