Home Products OLED Module OLED Touch Display WEO012832M-CTP

128x32 In-Cell Touch Panel OLED ,0.91 inch In-Cell Display

Model No. WEO012832M-CTP

►Type: Graphic
►Structure: COG
►Size: 0.91"
►128 x 32 Dot Matrix
►3V Power supply
►1/32 duty
►Interface: SPI,I2C
►In Cell Touch Panel
►Display Color: White / Yellow


WEO012832M-CTP model is a 0.91" COG Graphic OLED display with In-Cell Capacitive Touch Panel, which is made of resolution 128x32 pixels. This module is built-in with SSD7317 TDDI IC (Touch with Display Driver IC); it supports 4-Wire SPI and I2C interface. This SSD7317 IC is a Touch and Display Driver Integration IC (TDDI IC), which integrates touch and display microelectronics into a single chip for use on PMOLED panels, targeting applications including wearables, smart home appliances, and smart healthcare devices.

WEO012832M-CTP model adopted In-Cell Touch Panel technology, which supports SPI and I2C interface featuring four touch keys (areas) and one direction slide (supports right or left direction). The supply voltage for logic (VDD) is from 1.65V to 3.5V, typical value 3.3V, 1/32 driving duty, the display with 50% Checkboard current is 4mA @8.5V VCC (typical value), driving duty 1/32. This module can be operating at temperatures from -40℃ to +80℃; its storage temperatures range from -40℃ to +85℃.

The WEO012832M-CTP model OLED module features a high contrast ratio of 10,000:1, allowing for more vibrant and deeper blacks, and brighter whites. This results in enhanced image quality, sharper details, and improved readability.


0.91 inch 128x32 In-Cell Touch Panel OLED Display, In-Cell Display - WEO012832M-CTP


Data source ref: WEO012832MWAP3J00000


Interface Pin Function

No. Symbol Function
1 VCI Power supply pin for touch analog driving. VCI must be greater than or equal to VDD.
2 VSS Ground pin.
3 VCC Power Supply for Display. Most positive voltage. Connect to external source.
4 VSL This is segment voltage (output low level) reference pin.
When external VSL is not used, connect externally to VSS. When external VSL is used, connect with resistor and diode to ground
5 DCDCEN0 Enable output pin for external DCDC circuit. NC if not used
6 DCDCEN1 Enable input pin for external DCDC circuit. Tie low if not used.
7 VDD Power supply pin for core logic operation.
8 FR This pin outputs RAM write synchronization signal.
It should be kept NC if it is not used.
9 DCS This pin is the chip select input connecting to the MCU for display interface.
10 TCS This pin is the chip select input connecting to the MCU for touch.
11 RES# This pin is the reset signal input for display interface.
12 TRES This pin is the reset signal input for touch.
13 DC This pin is Data/Command control pin for display interface.
In I2C mode, this pin acts as SA0 for slave address selection.
14 E/RD# In I2C mode, this pin acts as SA1 for slave address selection.
15 IRQ Interrupt signal for touch reporting.
16 TD0 Serial Data Input/Output and clock for Touch
In SPI mode TD2 serves as SDOUT, TD1 serves as SDIN, and TD0 serves as the serial clock SCLK.
In I2C mode TD2 and TD1 should be tied together and serve as SDA and TD0 is the serial clock SCL. External pull up resistors.
17 TD1
18 TD2
19 VSS Ground pin.
20 D0 The serial clock input for display interface.
21 D1 The serial data input for display interface.
22 BS1
BS1 BS3 Display Interface Touch Interface
0 0 4 -SPI SPI
0 1 4-SPI I2C
1 0 I2C SPI
1 1 I2C I2C
23 BS3
24 VCOMH COM signal deselected voltage level.
A capacitor should be connected between this pin and VSS.

Mechanical Data

Item Dimension Unit
Dot Matrix 128 × 32 Dots
Module dimension 30.0 × 11.5 × 1.41 mm
Active Area 22.38 × 5.58 mm
Pixel Size 0.155 × 0.155 mm
Pixel Pitch 0.175 × 0.175 mm
Display Mode Passive Matrix
Display Color Monochrome
Drive Duty 1/32 Duty
IC SSD7317
OLED Interface 4-wire SPI,I2C
CTP Interface SPI,I2C
Gesture 4-key and 1-D slide
Size 0.91 inch

Absolute Maximum Ratings

Parameter Symbol Min Max Unit
Supply Voltage for Logic VDD 0 4.0 V
Supply Voltage for Logic VCI 0 4.0 V
Supply Voltage for Display VCC 0 19 V
Operating Temperature TOP -40 +80 °C
Storage Temperature TSTG -40 +85 °C

Electrical Characteristics

DC Electrical Characteristics

Item Symbol Condition Min Typ Max Unit
Supply Voltage for Logic VDD 1.65 3.3 3.5 V
Touch controller Supply Voltage VCI 3.0 3.5 V
Supply Voltage for Display VCC 8.0 8.5 9.0 V
Input High Volt. VIH 0.8×VDD V
Input Low Volt. VIL 0.2×VDD V
Output High Volt. VOH 0.9×VDD V
Output Low Volt. VOL 0.1×VDD V
50% Check Board
operating Current
ICC VCC =8.5V 4 8 mA

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