2.8 inch 240×320 TFT IPS LCD Display

Model No. WF28JTYAJDNN0

Size: 2.8″
Resolution: 240×320 dots
View Direction: IPS
Interface: MCU, SPI
Driver IC：ILI9341
Control-Board: No
Brightness(cd/m²): 500
Frame Through Hole: No
Touch Screen: Without Touch Screen

Description

WF28JTYAJDNN0 is a 2.8-inch IPS TFT LCD module with a wider viewing angle, featuring a resolution of 240×320 pixels and an aspect ratio of 3:4. The WF28JTYAJDNN0 module is designed in portrait mode as an IPS TFT-LCD, incorporating the ILI9341 controller IC. It supports MCU 8-bit/16-bit or SPI interfaces, providing a typical contrast ratio of 800:1. The brightness of WF28JTYAJDNN0 is 500 nits (typical value).

The supply voltage for the interface logic (IOVCC) of the WF28J model ranges from 1.65V to 3.3V, while the supply for the analog circuit is from 2.5V to 3.3V. It is a normally black, transmissive LCD type with glare surface glass. The operating temperature ranges from -20°C to +70°C, and storage temperatures range from -30°C to +80°C.

This 2.8-inch IPS TFT provides a wider viewing angle compared to TN TFT, with angles of Left: 80 / Right: 80 / Up: 80 / Down: 80 degrees (typical value). IPS panels in TFT displays offer broader viewing angles, accurate and consistent color reproduction, superior image quality, precise touchscreen performance, and consistent color temperature. The versatility of IPS TFT-LCD displays makes them suitable for various applications, including consumer electronics, medical displays, and industrial control panels.

Drawing

Specifications

Interface Pin Function

LCM PIN Definition

Symbol

Function

I/O

GND

Ground

2-6

No connection

–

VCI

High voltage power supply for analog circuit blocks
(2.5 ~ 3.3 V)

IOVCC

Low voltage power supply for interface logic circuits
(2.5 ~ 3.3 V)

Tearing effect output pin to synchronize MPU to frame writing, activated by S/W command. When this pin is not activated, this pin is low.
If not used, open this pin.

Chip select signal.

D/CX(SCL)

(D/CX): This pin is used to select “Data or Command” in the parallel interface.
When DCX = 1, data is selected.
When DCX = 0, command is selected.
(SCL): This pin is used as the serial interface clock in 3-wire
9-bit/4-wire 8-bit serial data interface.
If not used, this pin should be connected to IOVCC or GND.

WR(SPI_D/C)

(WRX) – 8080-Ⅰ/8080-Ⅱ system: Serves as a write signal and writes data at the rising edge.
(D/CX) – 4-line system: Serves as the selector of command or parameter.
Fix to IOVCC level when not in use.

8080-Ⅰ/8080-Ⅱ system (RDX): Serves as a read signal and MCU read data at the rising edge.
Fix to IOVCC level when not in use.

14-29

DB0~DB15

18-bit parallel bi-directional data bus for MCU system.
Fix to GND level when not in use.

I/O

RESET

(RESX)This signal will reset the device and must be applied to properly initialize the chip.
Signal is active low.

IM0

Select the MCU interface mode

IM2	IM1	1M0	MCU-Interface Mode	DB Pin in use
IM2	IM1	1M0	MCU-Interface Mode	Register/Content	GRAM
0	0	0	80 MCU 8-bit bus interface I	D[7:0]	D[7:0]
0	0	1	80 MCU 16-bit bus interface I	D[7:0]	D[15:0]
0	1	0	80 MCU 9-bit bus interface I	D[7:0]	D[8:0]
0	1	1	80 MCU 18-bit bus interface I	D[7:0]	D[17:0]
1	0	1	3-wire 9-bit data serial interface I	SDA: In/Out
1	1	0	4-wire 8-bit data serial interface I	SDA: In/Out

MPU Parallel interface bus and serial interface select
If use RGB Interface must select serial interface.
* : Fix this pin at IOVCC or GND.

IM1

IM2

DB16

18-bit parallel bi-directional data bus for MCU system and RGB
interface mode
Fix to GND level when not in use.

I/O

DB17

LEDK

Cathode of LED backlight.

LEDK

Cathode of LED backlight.

LEDA

Anode of LED backlight.

SDA

SDA : Serial in/out signal.
The data is applied on the rising edge of the SCL signal.
If not used, fix this pin at IOVCC or GND.

I/O

Not used, open this pin

General Specifications

Item	Dimension	Unit
Size	2.8	inch
Dot Matrix	240 x RGB x 320(TFT)	dots
Module dimension	50.5(W) x 69.7(H) x 4.55(D)	mm
Active area	43.2 x 57.6	mm
Dot pitch	0.18 x 0.18	mm
LCD type	TFT, Normally Black, Transmissive
TFT Driver IC	ILI9341V or equivalent
TFT Interface	MCU/SPI
Viewing angle	80/80/80/80
Aspect Ratio	3:4
Backlight Type	LED,Normally White
Touch Panel	Without Touch Panel
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 digital	IOVCC	－	1.65	－	3.3	V
Supply Voltage for analog	VCI	－	2.5	－	3.3	V
Power Supply for Current	ICC	IOVCC=VCI =VCC=3.0V	－	13	20	mA

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