3.9″ Bar Type Color TFT (PCAP)

Model No. WF39BTLASDNGA

Size : 3.9”
Resolution : 480×128 dots
View Direction : 6H
Interface : RGB
Driver IC : HX8278-A
Control-Board : Without control board
Brightness(cd/m²) : 400
Frame Through Hole : No
Touch Screen : Projected capacitive touch panel (PCAP)
Detect Point : 5 Fingers

Description

WF39BTLASDNGA is Winstar 3.9” Bar type WF39B series TFT display with Capacitive Touch Panel. This model is featured with resolution 480×128 pixels; built in with Driver IC HX8278, it supports RGB interface; 3.3V (typical) power supply; supports SYNC mode or DE mode, default SYNC mode. Its luminance is 400 Nits; Contrast ratio of 500:1, gray scale inversion direction 12 o’clock. It can be operating at temperatures from -20℃ to +70℃; its storage temperatures range from -30℃ to +80℃.

This panorama widescreen 3.9 inch WF39B TFT-LCD display offers high quality and colorful image; it is especially suitable for server system, audio system and advertising display, auto/aviation/marine equipment, security equipment, Industrial equipment, outdoor intercom systems and control panels, medical equipment, drone controls.

Drawing

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) × 5.13(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	6 o’clock
Gray Scale Inversion Direction	12 o’clock
Aspect Ratio	Bar Type
Backlight Type	LED, Normally White
Driver IC	HX8278-A Or Equal
TFT Interface	RGB-24BIT (SYNC mode)
PCAP IC	GT911 or equivalent
PCAP FW Version
Touch Screen	Projected capacitive touch screen (PCAP)
Surface	Glare

Absolute Maximum Ratings

Item	Symbol	Min	Typ	Max	Unit
Operating Temperature	TOP	-20	－	+70	℃
Storage Temperature	TST	-30	－	+80	℃

Electrical Characteristics

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	－	3.3	V

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