OLED 20×4, 2.88 inch Character OLED

Model No. WEH002004B

Type: Character
Structure : COB
20 characters x 4 Lines
IC：WS0010-TX
5V power supply
1/16 duty cycle
Interface: 6800, option 8080, SPI
Compatible to STN LCD WH2004B
Display Color: White / Yellow / Blue / Green

Categories: Character OLED Display, OLED Module

Description

The WEH002004B series is a 2.88-inch character OLED display featuring a 20×4 character configuration. It integrates the WS0010-TX IC and supports the default 6800 interface, with optional 8080 or SPI interfaces, operating in a 1/16 duty drive mode. All standard Winstar COB OLED character types are equipped with this all-in-one Fonts controller IC, providing support for ASCII, English, Russian, European, and Japanese character sets through a built-in ROM standard font library.

Winstar’s OLED 20×4 display, WEH002004B, shares identical outline dimensions (98.0 x 60.0 mm), viewable area size (77.0 x 25.2 mm), and pin configuration with the Winstar STN LCD standard model WH2004B. Upgrading applications from STN LCDs to OLED displays, Winstar’s OLED 20×4 proves to be the optimal choice.

For applications requiring graphical content display, the WEG010032B serves as the graphical counterpart to the WEH002004B, offering a resolution of 100 x 32 pixels.

The WEH002004B series OLED 20×4 module includes an integrated PCB board, eliminating the need for customers to develop additional PCBs. Installation is simplified with four screw holes on the PCB board. Operating at a logic supply voltage ranging from 4.8V to 5.3V (typically 5.0V), it functions reliably across temperatures from -40°C to +80°C, with storage capabilities from -40°C to +85°C. It also offers multiple emitting colors to cater to diverse customer preferences.

Drawing

WEH002004B - OLED 20x4, 2.88 inch Character OLED

Data source ref: WEH002004BWPP5N00100

SPECIFICATIONS

Interface Pin Function

Pin No.	Symbol	Level	Description
1	VSS	0V	Ground
2	VDD	5.0V	Supply Voltage for logic
3	NC	－
4	RS	H/L	H: DATA, L: Instruction code
5	R/W	H/L	H: Read(Module→MPU) L: Write(MPU→Module)
6	E	H,H→L	Chip enable signal
7	DB0	H/L	Data bit 0
8	DB1	H/L	Data bit 1
9	DB2	H/L	Data bit 2
10	DB3	H/L	Data bit 3
11	DB4	H/L	Data bit 4
12	DB5	H/L	Data bit 5
13	DB6	H/L	Data bit 6
14	DB7	H/L	Data bit 7
15	NC	－
16	NC	－

Mechanical Data

Item	Dimension	Unit
Number of Characters	20 Characters x 4 Lines	－
Module dimension	98.0 x 60.0 x 10.0(MAX)	mm
View area	77.0 x 25.2	mm
Active area	70.16 x 20.95	mm
Dot size	0.54 x 0.55	mm
Dot pitch	0.59 x 0.60	mm
Character size	2.9 x 4.75	mm
Character pitch	3.54 x 5.4	mm
Panel type	OLED, Monochrome
Duty	1/16
IC	WS0010-TX
Interface	6800, option 8080, SPI
Size	2.88 inch

Absolute Maximum Ratings

Item	Symbol	Min	Max	Unit
Operating Temperature	TOP	-40	+80	°C
Storage Temperature	TST	-40	+85	°C
Supply Voltage For Logic	VDD-VSS	-0.3	5.3	V

Electronical Characteristics

Item	Symbol	Condition	Min	Typ	Max	Unit
Supply Voltage For Logic	VDD-VSS	－	4.8	5.0	5.3	V
Input High Volt.	VIH	－	0.8xDD	－	VDD	V
Input Low Volt.	VIL	－	GND	－	0.2xVDD	V
Output High Volt.	VOH	IOH=-0.5mA	0.8xVDD	－	VDD	V
Output Low Volt.	VOL	IOL=0.5mA	GND	－	0.2xVDD	V
50% Check Board Operating Current	IDD	VDD=5V	－	230	345	mA