How long do OLED displays last?

Blue OLED subpixels age fastest; typical luminance lifetime is 10,000–20,000 hours to 50% brightness for blue materials. We manage this with brightness derating, aging compensation and always-on dimming guidance — for watch faces we recommend 300–500 nits with a dimmed idle state.

Can you make round or notched OLED shapes?

Yes. Round AMOLED at 1.2" 390×390 and 1.39" 454×454 are standard stocked formats, and we cut irregular and notched shapes from our own 2nd-cutting line. Custom-shape programs start at an MOQ of 1,000 pcs.

OLED & AMOLED Modules · 0.42"–5.5"

OLED & AMOLED display modules with true blacks and microamp standby

PMOLED from 0.42" to 2.8" and AMOLED from 1.2" to 5.5" — self-emissive pixels with no backlight, ultra-thin profiles under 1 mm and µA-level standby for TWS cases, smartwatches and wearables.

0.42"–2.8"PMOLED range

1.2"–5.5"AMOLED range

>10,000:1contrast, true black

<1 mmglass module thickness

Overview

Self-emissive by design — no backlight, no light guide, no contrast ceiling

An OLED pixel generates its own light, so black is a pixel that is simply off. That removes the backlight unit, the light guide and the diffuser from the BOM, and with them the leakage current and the bezel width they force.

Technology	PMOLED (passive matrix) / AMOLED (active TFT backplane)
PMOLED size range	0.42"–2.8", character to graphic
AMOLED size range	1.2"–5.5", round and rectangular
Panel structure	Self-emissive RGB OLED, no backlight unit
Brightness	80–120 nits PMOLED; 300–800 nits AMOLED wearable grade
Contrast	>10,000:1, absolute black at 0 nits
Interfaces	SPI · I2C · QSPI · MIPI DSI
Module thickness	<1 mm glass-based PMOLED; ultra-narrow bezel
Standby current	µA level — no backlight to drive
Custom shapes	Round cut · irregular cut · notch
Certifications	ISO 9001 · RoHS · REACH

Assortment of OLED displays — a round 1.39-inch AMOLED watch display, a 0.96-inch PMOLED and a small bar OLED glowing on a dark surface

Technology Notes

Pixels that light themselves — and how we keep them alive

Because each pixel emits its own light, OLED modules deliver contrast a backlit LCD cannot reach: blacks are truly off, measured at 0 nits, which is why a watch face at night shows no halo around the digits. The same architecture cuts the optical stack to a single glass, giving sub-millimeter thickness and narrow bezels that matter in TWS and wearable enclosures.

The trade-off is the blue emitter: blue OLED materials age faster than red and green, so lifetime is managed at design time — brightness derating, pixel-aging compensation and always-on dimming guidance keep a watch face uniform across its service life.

>10,000:1 contrast with absolute black — 0 nits when the pixel is off, no backlight bleed.
µA-level standby — no backlight to power, so idle draw is controller and pixel leakage only.
<1 mm glass-based PMOLED with narrow bezels, sized for TWS and band enclosures.
Round, notch and irregular cuts from standard cells on our own 2nd-cutting line.

Product Range

Ten stocked OLED formats, from TWS case to premium HMI

The table below covers our most-ordered OLED modules. Each line is a live product: tooled, stocked and repeatable. Custom resolutions, round cuts and notch shapes are quoted from the same cell and driver supply chain.

Standard OLED modules — size, type, resolution, interface, brightness and typical use
Size	Type	Resolution	Interface	Brightness	Typical use
0.42"	PMOLED	72×40	SPI	80 nits	TWS earbuds case
0.49"	PMOLED	64×32	SPI / I2C	80 nits	TWS case
0.71"	PMOLED	96×24	SPI	90 nits	TWS charging case
0.96"	PMOLED	128×64	SPI / I2C	100 nits	Wearables / IoT
1.12"	PMOLED	96×96	SPI	120 nits	Smart band
1.2"	AMOLED	390×390	MIPI / SPI	300–500 nits	Round smartwatch
1.39"	AMOLED	454×454	MIPI DSI	500 nits	Round smartwatch
1.78"	AMOLED	368×448	QSPI	500 nits	Smartwatch
2.8"	PMOLED	256×128	SPI	120 nits	Home appliance segment
5.44"	AMOLED	1080×1920	MIPI DSI	800 nits	Premium HMI

Applications

Where OLED earns its power budget

Four application families dominate our OLED volume. Each runs a dedicated engineering program — shape, brightness grade and lifetime target tuned to the duty cycle.

Smartwatches

Round AMOLED 1.2" 390×390 and 1.39" 454×454 at 300–500 nits, with always-on display support for wrist-up legibility.

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Smart Bands

0.96" 128×64 and 1.12" 96×96 PMOLED with µA standby — a week of battery life on a 100 mAh cell.

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Home Appliances

Segment and graphic OLED for cookers and AC panels — 10-year appliance life, ultra-thin bezel and dimmable down to 10%.

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Premium HMI

5.44" 1080×1920 AMOLED at 800 nits for high-end control surfaces where wide angles and true black sell the product.

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TWS Charging Case Displays

The 0.42"–0.71" screen inside 200 million cases

TWS charging case screens are the OLED market's mainstream: sizes of 0.42"–0.71" at 72×40 to 96×24 pixels, drawing single-digit microamps in standby so the case's idle battery budget is untouched. Our lines ship these at up to 200K pcs/month, with SPI drivers and a glass profile thin enough for the case lid.

TWS earbuds charging case with a small OLED screen showing an abstract battery ring on a clean white desk in soft daylight

FAQ

OLED questions we answer every week

Short answers to the four most common OLED procurement questions. Anything else — send it with your drawing and we reply within 48 hours.

PMOLED uses a passive matrix where the driver IC scans rows and columns directly — the right fit for small 0.42"–2.8" low-resolution displays like TWS case screens. AMOLED adds an active TFT backplane with one transistor per pixel, enabling 1.2"–5.5" panels up to 1080×1920 with faster refresh for smartwatches.

Blue OLED subpixels age fastest; typical luminance lifetime is 10,000–20,000 hours to 50% brightness for blue materials. We manage this with brightness derating, pixel-aging compensation and always-on dimming guidance — for watch faces we recommend 300–500 nits with a dimmed idle state.

Yes. Round AMOLED at 1.2" 390×390 and 1.39" 454×454 are standard stocked formats, and we cut irregular and notched shapes on our own 2nd-cutting line. Custom-shape programs start at an MOQ of 1,000 pcs.

Single-digit microamps in sleep mode — there is no backlight to power, so idle draw is only the controller and pixel leakage. A 0.71" PMOLED in a TWS case typically adds under 5 µA to the case's idle budget.

Start a Quote

Send the size and the shape. We will return a spec, a price and a schedule.

MOQ 500 pcs, samples in 7–15 days, mass production in 20–35 days. Round, notched or rectangular — FOB Shenzhen, CIF or DDP, payment by T/T 30/70 or L/C, quoted within 48 hours.

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