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1.39 inch Round/Circular OLED For Smartwatch 1.39 inch Round/Circular OLED For Smartwatch

1.39 inch Round/Circular OLED For Smartwatch

For a few displays with controllor board, it's better to buy from our online store. For development and batch order, or technical specification including datasheet, circuit schematics, initial code, customized cover glass, touch panel, please kindly contact us

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 Model: H139BLN01.0 (AUO 24 pins Left side interface)
             E1392AM1     (EDO 20 pins Right Side Interface)

1.39 inch Round OLED is the most used size for Smart Watch, both AUO and EDO has made similar model. The two main versions are 24 pins (left side interface), 20 pins (right side interface). Panox Display gather these models under a same item because their display optics parameters is almost the same, same outline, same active area, same resolution, symmetrical shape, etc.

These AM-OLEDs are perfect for
 wearable devices such as bracelets, and smartwatches, but with the advantages of AMOLED including low consumption, high contrast, fast response time, wide operation temperature, and vivid image, it also can be widely used in color display, video phone, digital camera, medical device, car HUD, military equipment, portable information devices, electronic lock, etc.

Main Differences Between H139BLN01.0 and E1392AM1,

Model H139BLN01.0    E1392AM1    
Interface Left side interface Right side interface
pins 24 pins  20 pins
Driver IC RM69080  RM67160
Luminance 350 nits  300 nits

Panox Display has made HDMI controller board for 1.39 inch OLED, including HDMI to single MIPI, HDMI to dual MIPIs,



Datasheet Download

File Name Description Language Tags Update Time Document Size Download
E1392AM1.pdf Datasheet English EDO 1.39 2022-08-16 04:23:43 832.64KB
H139BLN01.pdf Datasheet English AUO 1.39 2022-08-16 04:25:54 1.56M

Panox Display values every opportunity to cooperate with clients, because OLED display is fragile, so we provide a solid package and the fastest way to ship. Panox Display has seven years experience of in international trade and served more than 1000 clients all over World.
It`s safe and convenient to work with Panox Display.


To make your development of the OLED display driver more smooth, Panox Display will provide free connectors and an adapter board, engineers can directly fly lines to the main board.
If you need a customized board with HDMI/Type-C input, Panox Display also can meet your requirements.


Panox Display has built an automatic production line that can produce more than 50K displays per day. Its free dust factory can automatically bond IC, FPC, and backlight. Panox Display always keeps a skillful QC team to make sure every shipped display is without any quality problems.
Panox Display also provides customized LCD/OLED with a low-cost solution.


Panox Display focuses on small and medium-size displays, from 0.39 inch to 15.6 inch, including all kinds of shapes, such as
rectangular displays, square displays, round/circular displays, and Long-strip displays.


Over the past 7 years, Panox Display has served clients all over the world, most of our clients are from developed countries, such as North America, Europe, East Asia, and Australia. With patient service, Panox Display has built good relationships with many clients including DIYers, engineers, purchasers, electronics traders, and company founders. Panox Display has reliable express shipped to any place in the world.

Our clients are from varieties of industries, from civil products to military level, including Vehicles, E-entertainment, Smartwatch, 3D printers, Turn-key solutions, Diving, and Medical.
With the development of technology, more and more products will need display panels. Panox Display also keeps following the latest display technology.


What do you wait for? Just start to develop with Panox Display`s panels.



Where can I buy this display?
If you just need a few samples, it`s better to directly on our Aliexpress store, we are 5 stars feedback supplier with 100% Honesty. (The buy link is on the right of the product image)
For bulk orders, it`s better to contact us and get a better price.
I don`t know which display is suitable for my project.
Different displays have different characteristics, just tell Panox Display your application, and operating environment, Panox Display will suggest a suitable display for you.
How can I test the display screen?
Panox Display provide HDMI/Type-C controller board or individual demo kit to test.
The pictures of demo kit can be changed by yourself.
How can I drive the display panel?
Panox Display will provide necessary specifications for most LCD/OLED on sale, including,
Display Datasheet
Display Drawing
IC Datasheet
Circuit schematic
For most electronics engineers, our specifications are enough to run the display, and we will provide some assistance.
But Panox Display is not a school, if customers don`t know the basic knowledge to design circuit boards, we suggest using our controller board to drive the display.
Where can I get the cover glass or touch screen for this display panel?
First, you need to check whether this display has On-cell or In-cell touch panel, if has, it only needs to add a cover glass on it. If not, it needs an external touch panel.
(On-cell and In-cell are integrated PCAP touch panels on the display screen)
Because the shape of the cover glass depends on the design of the clients, to avoid infringement of appearance,  most of the developers need different customized touch panels.
Panox Display can provide a customized touch screen with a low cost of tooling charge.
How do Panox Display ship display panels?
1. UPS/Fedex/DHL/TNT, the best choice for most clients, 3~7 days to arrive.
2. Aliexpress standard ship, this way is cheap and slow, usually take more than 10 days. Only for samples.
3. For Russian clients, EMS or Aliexpress shipment is better.
4. Any designated logistics are acceptable
What`s the quality standard of Panox Display`s display panels?
Most display panels are from giant manufacturers such as BOE, Sharp, LG, EDO, AUO, etc. They have already tested with strict standards.
For OEM products from Panox Display factory, please check the quality test standards.  
What`s the lifetime of these display panels?
The lifetime is different on different images, check the lifetime on datasheet to study it.
Can I connect this display to Raspberry Pi?
If your Raspberry Pi can support the interface of the display panel, and you know how to program on Raspberry Pi, you can connect to our display.
If you don`t know or don`t want to write a display program on Raspberry Pi, it`s better to get an HDMI controller board from us, and Panox Display will send a config.txt file for reference.

Model Name H139BLN01.0/ H139BLN01.1/ E1392AM1
Display Type AMOLED
Display Brand AUO/EDO
Interface MIPI
Screen Size 1.39
Orientation Landscape
Display Color Full Color
Manufacturer AUO/EDO
Resolution 400(RGB)×400
Driver IC RM69080/RM67160
Consumption -
Active Area (mm) 35.4 × 35.4 (H×V)
Bezel Area (mm) -
Luminance 350 or 300 cd/m² (Typ.)
Viewing Angle 80/80/80/80 (Min.)(CR≥1600)
Color Depth 16.7M 100% (CIE1931)
Mass 2.15±0.33g
Refresh Rate 30 Hz
Signal Type MIPI (1 data lane) , Connector , 24 pins/20 pins
Voltage Supply 1.8/2.8/4.6/-2.4V (Typ.)(VDDIO/VCI/ELVDD/ELVSS)
Operating Temp -30 ~ 70 °C
Storage Temp -30 ~ 80 °C
Aspect Ratio 1:1 (W : H)
Screen Type AM-OLED, OLED
Arrangement RGB Vertical Stripe
Outline (mm) 40.5 × 38.6 × 0.79 (H×V×D)
Treatment Glare (Haze 0%), Hard coating (3H)
Contrast Ratio 10000 : 1 (Min.) (TM)
Response 2/2 (Typ.)(Tr/Td) ms
Work Mode -
Backlight self , 30K hours
Used For Wearable, Smart watch
Touch Panel Customized
Outdoor Visibility Sunlight readable

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