Home Products OLED Module Character OLED Display WEH002004B

OLED 20x4, 2.88 inch Character OLED

Model No. WEH002004B

►Type: Character
►Structure : COB
►20 characters x 4 Lines
►Built-in Controller WS0010
►5V power supply
►1/16 duty cycle
►Interface: 6800, option 8080, SPI
►Compatible to STN LCD WH2004B


The Organic Light-Emitting Diode (OLED) is a new generation technology, brighter with more agile responding speed, lightweight and low power. Winstar model no. WEH002004B 2.88 inch Character OLED is made of 20 characters x 4 lines mono oled emitting color. This OLED 20x4 character display has different interface optional; it is default 6800, available options 8080 and SPI. Winstar's 20x4 OLED Display is your best choice to upgrade your applications from STN LCDs to OLED displays.

  • WEH002004BW : White
  • WEH002004BL : Yellow
  • WEH002004BG : Green (might have MOQ)
  • WEH002004BB : Blue (might have MOQ)


WEH002004B - OLED 20x4, 2.88 inch Character OLED


Interface Pin Function

Pin No. Symbol Description
1 VSS Ground Pin
2 VDD Voltage for logic
3 NC No Connection
4 RS Register Select 
5 R/W Read/Write Control
6 E Chip Enable Signal
7~14 DB0~DB7 Data Bus
15~16 NC No Connection

Mechanical Data

Item Dimension Unit
Module dimension 98.0 × 60.0 mm
View area 77.0 × 25.2 mm
Active area 70.16 × 20.95 mm
Dot pitch 0.59 × 0.60 mm
Dot size 0.54 × 0.55 mm

Electronical Characteristics

Item Symbol Condition Min Typ Max Unit
Supply Voltage VDD --- 4.8 5.0 5.3 V

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