2.8 inch tft lcd display screen

2.8 inch tft LCD display is madeup of twisted nematic field effect in order to provide 2.8 inch tft LCD display to the world with a better resolution .

2.8 inch tft LCD display suppliers are providing 2.8 inch tft LCD display all over the world with a better view and focus on the images . 2.8 inch tft LCD display suppliers have a very good experience in 2.8 inch tft LCD display and they know how to provide 2.8 inch tft LCD display to their customers all over the world .

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DESCRIPTION

H28N4009 is a 2.8 Inch TFT LCD Display Module with optional resistive touch screen and capacitive touch screen control with a resolution of 240×400 pixels. This size TFT LCD monitor is portrait mode with wider viewing angle by POL adjustment, left: 45/right: 45/up: 50/down: 20 degrees (typical).Optional RTP or CTP.

This H28N4009 module has built-in ILI9327 controller IC, supports RGB interface, the power supply voltage (VCC) range is 3.0V to 3.6V, the brightness is 380 nits (typ), and the contrast ratio is 800:1. This module is a handheld device, beauty Industrial ideal for equipment, etc. The module can operate at temperatures from -20°C to +70°C; its storage temperature range is -30°C to +80°C.

DRAWING

SPECIFICATIONS

General Specifications

Item	Contents	Unit
Size	2.8	inch
LCM Dimension	43.22（W）* 73.20（H） * 3.05(T)	mm
LCD Active Area	36.72* 61.20	mm
Number Of Dots	240×400	pixel
LCD Type	a-Si TFT
Viewing Direction	12 o’clock
Driver IC	ILI9327
Interface Type	RGB
Operating Temperature	-20℃~ 70℃
Storage Temperature	-30℃~ 80℃
Backlight Type	4 LEDs
Brightness	380	Cd/m2

Interface

LCM PIN Definition

NO.	Symbol	Description
1	LED-A	BACKLIGHT ANODE
2	LED-K	BACKLIGHT CATHODE
3	NC	NC
4	GND	Ground
5	RESET	Reset pin
6	VSYNC	Frame Synchronizing Signal
7	HSYNC	Line Synchronizing Signal
8	DCLK	Dot Clock Signa
9	DEN	Data Enable Signal
10-15	R5-R0	Data Bus
16-21	G5-G0	Data Bus
22-27	B5-B0	Data Bus
28	SDO	Serial Data Output
29	SDI	Serial Data Input
30	SCL	Serial  Clock
31	CS	Chip Select
32	TE	Not Connect
33	VCC	POWER SUPPLY
34	GND	Ground
35	TP-SDA	TP-Serial Data Input
36	TP-SCL	TP- Serial  Clock
37	TP-RST	TP- Reset pin
38	TP-EINT	TP-EINT DATA SIGNAL
39	GND	Ground
40	TP-AVDD	TP And LCM Power supply

DC Characteristics

Item	Symbol	Min	Typ	Max	Unit
TFT gate on voltage	VGH	—	15	—	V
TFT gate off voltage	VGL	—	-7.5	—	V
TFT common electrode Voltage	Vcom	—	-1	—	V

Typical Operation Conditions

Item	Symbol	Min.	Typ.	Max.	Unit
Analog Supply Voltage	VCI	2.5	2.8	3.3	V
Digital Supply Voltage	VDD	2.5	2.8	3.3	V
I/O Supply Voltage	IOVCC	1.65	1.8/2.8	3.3	V
Input High Voltage	VIH	0.8*IOVCC	–	IOVCC	V
Input Low Voltage	VIL	0	–	0.2*IOVCC	V
Output High Voltage	VOH	0.8*IOVCC	–	–	V
Output Low Voltage	VOL	–	–	0.2*IOVCC	V

Backlight Circuit Characteristics

Item	Symbol	Min.	Typ.	Max.	Unit
LED Current	IB	—	60	80	mA
LED Voltage	Vf	2.8	3.0	3.2	V
CIE	X	0.265	0.295	0.325
	Y	0.26	0.29	0.32
Brightness of LCM	L	—	380	—	cd/m2

Reliability Test Items

Test Item	Test Condition	Test result determinant gist
High temperature storage	80±3 ℃，48H；
Low temperature storage	~30±3 ℃，48H；
High temperature storage	70±3 ℃，48H；	Inspection after 2~4hours storage at  roomtemperature,
Low temperature operation	~20±3 ℃，48H；	the sample shall be free from defects:
High temperaturehumi/dity	60℃±3 ℃,90%±3%RH ，48H；	1.Air bubble in the LCD;
Thermal Shock	~20℃/0.5h~+70℃/0.5h for a total 24 cycles；	2.Non-display;
Vibration Test	Frequency 10Hz~55Hz~10Hz	3.Glass crack;
	Amplitude：1.5mm, X，Y，Z
	direction for total 1H；	4. The electrical
	(Packing condition)
ESD test	±4KV, Human Body Mode,	characteristics requirements shall be satisfied.
	150pF/330Ω；
	±8KV, Air Mode, 150pF/330Ω；

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