WF0128-240240BD#0P19B-FC

TFT 1.28'' 240x240, Circular with KNOB, LCD + IC Controller, Interface MCU (SPI) IC GC9A01, Wide View Angle (IPS), 320cd/m², Capacitive touch panel

DESCRIPTION

WF0128-240240BD#0P19B-FC is a diameter 1.28-inch round IPS TFT-LCD module with KNOB with capacitive touch panel made of resolution of 240x240 pixels. This round TFT display with KNOB comprises an IPS TFT-LCD panel built with a GC9A01 driver IC that can communicate via SPI interface and is equipped with a capacitive touch panel that supports I2C interface.

WF0128-240240BD#0P19B-FC is adopted IPS panel, which has the advantage of higher contrast, true black background when the display or pixel is off and wider viewing angle of Left:80 / Right:80 / Up:80 / Down:80 degree (typical), contrast ratio 1,000:1 (typical value), brightness 320 nits (typical value), glare surface panel.

The power supply voltage for analog（VCI）is from 2.65 to 3.3 V, the typical value of 2.8V. It can operate temperatures from -20℃ to+ 70℃ and storage temperatures from -30℃ to +80℃. The round TFT display modules are suited for compact devices like wearable devices, and smart home applications.

DRAWING

SPECIFICATIONS

Interface

LCM PIN Definition

Pin	Symbol	Function	Remark
1	TP_INT	INTERUPT SIGNAL
2	TP_SDA	IIC DATA
3	TP_SCL	IIC CLOCK
4	TP_RESET	TP RESET SIGNAL
5	TP_GND	Ground
6	TP_VDD3.3V	CTP POWER SUPPLY
7	VLED+	Backlit positive
8	VLED-	Backlit negative
9	GND	Ground
10	CS	Chip select signal
11	SCL	Serial clock
12	SDA	Serial data signal
13	RS	Register select signal
14	TE	TE signal
15	RESET	LCD RESET Signal
16	VCI3.3V	LCD Power supply
17	NC	No connection
18	GND	Ground

General Specifications

Item	Dimension	Unit
Size	1.28	inch
Dot Matrix	240 x RGB x 240 (TFT)	dots
Module dimension	56.0 x 56.0 x 25.8	mm
Active area	32.40 x 32.40	mm
Dot pitch	0.043 X 0.135	mm
LCD type	TFT, Normally Black, Transmissive
Viewing Angle	80/80/80/80
TFT Interface	SPI
Backlight Type	LED ,Normally White
Driver IC	GC9A01
CTP Driver IC	CTS816 or equivalent
CTP FW Version	0X1
CTP Resolution	240*240
With /Without TP	With CTP
Surface	Glare

*Color tone slight changed by temperature and driving voltage.

Optical Characteristics

Item		Symbol		Min			Unit	Remark
Response time		Tr+ Tf	8=0°、Φ=0°	-	30	-	.ms	Note 3
Contrast ratio		CR	At optimized viewing angle	-	1000	-	-	Note 4
Color Chromaticity	White	Wx	8=0°、Φ=0	0.254	0.304	0.354	-	Note 2,5,6
Color Chromaticity	White	Wy	8=0°、Φ=0	0.277	0.327	0.377	-	Note 2,5,6
Viewing angle (Gray Scale Inversion Direction)		ΘR	CR≧10	-	80	-		Note 1
		ΘL		-	80	-
		ΦT		-	80	-
		ΦB		-	80	-
Brightness		-	-	290	320	-	cd/m2	Center of display
Uniformity		(U)	-	75	-	-	%	Note 5

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	Conditions	Standard Value			Unit
Item	Symbol	Conditions	Min	Typ	Max	Unit
Power Supply Voltage for Analog	VCI	Ta= +25℃	2.65	2.8	3.3	V
Supply CTP	TP_VDD3.3	Ta= +25°C	2.65	2.8	3.3	V
Supply CTP	ICTP	Ta= +25°C	-	3.0	4.5	mA
Input High Voltage for LCD	VIH	-	0.8Iovcc	-	Iovcc	V
Input Low Voltage for LCD	VIL	-	Vss	-	0.2 Iovcc	V
Output High Voltage for LCD	VOH	-	0.8Iovcc	-	Iovcc	V
Output Low Voltage for LCD	VOL	-	Vss	-	0.2 Iovcc	V

LED driving conditions

Parameter	Symbol				Unit	Remark
LED current	-	-	40	-	mA	-
LED voltage	VLED+	3.0	3.2	3.4	V	Note 1
LED Life Time	-	-	20,000	-	Hr	Note 2,3,4

SKU: WF0128-240240BD#0P19B-FC

Brand: Winstar

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