Under-Display sensors

Samsung Display announces the polarizer-free ECo2OLED tech

Samsung Display announced its latest OLED panel, the Eco²OLED, which increase light output by 33% compared to SDC's previous OLED panels. The increase light translates into a power consumption reduction of up to 25%.

Samsung Display Eco2 OLED vs. regular OLED

For the Eco²OLED panel, Samsung finally managed to commercialize a polarizer-free OLED, after many years of R&D. The first phone to adopt this display will be Samsung's upcoming Galaxy Fold 3. Interestingly Samsung says that the new design also enabled it to incorporate a high-quality under-the-display camera as more light is entered through the OLED.

Samsung announces the Galaxy Fold3 and Flip3 foldable phones, and new smartwatches

Samsung announced several new OLED devices, including its two new foldable smartphones. First up is the Galaxy Z Fold3, which features a 7.6-inch 1768x2208 120Hz 1200 nits foldable Dynamic AMOLED X2 display, and a 6.2-inch 120Hz 832x2268 external AMOLED display. The foldable phone sports Samsung's first under-the-display selfie camera.

Samsung Galaxy Fold3 and Flip3 photo

Samsung says that the new Galaxy Fold has an improved hinge design and is more durable compared to previous generation devices. The second phone is the Galaxy Flip3, which features a 6.7-inch 120Hz 1200 nits 1080x2640 foldable Dynamic AMOLED display, and an external 1.9" 260x512 Super AMOLED display.

OTI Lumionics' CEO updates on the company's technologies and plans

Canada-based OTI Lumionics developed innovative OLED materials and technologies. In August 2020 the company announced that it will start shipping its 2nd-gen ConducTorr Cathode Patterning Materials (CPM) by the end of 2020 to customers, which will use these to create OLED displays with under-the-display camera and face unlock technologies.

OTI Lumionics laboratory photo

We had a short talk with the company's founder and CEO, Dr. Michael G. Helander, during which we discussed the company's technology, status and future plans.

BOE shows new OLED technologies at SID Displayweek 2021

BOE demonstrates several new OLED technologies at SID Displayweek 2021. First up is a new rollable display. The new display is 8-inch in size, and it features a resolution of 2592x2176 and a bending radius of 4 mm. BOE says the new display passed over 200,000 sliding cycles.

Last year at Displayweek 2020, BOE demonstrated a 12-inch rollable OLED. It has since been working with LG Electronics on the company's rollable smartphone (which was since canceled as LG withdrew from the smartphone market) and with OPPO on a 7.4-inch sliding OLED phone.

AUO shows world's largest OLED fingerprint sensor

AU Optronics is demonstrating its new under-the-OLED fingerprint sensor, which it says is the world's largest size sensor at 2.9-inch.

A larger sensor is useful as it makes it easier for the user to sign-in, and it also enables support for multi-fingerprint identification for biometrics security. The sensor features high-resolution (1,000 PPI) suitable for detection of small child fingerprints and also includes a heart-rate sensor for added security.

Visionox shows new OLED technologies at SID Displayweek 2021

Chinese OLED producer Visionox demonstrates several new OLED technologies at SID Displayweek 2021. We'll list some of these new achievements in this post, and you can see these in the video below.

Visionox shows a 'dynamic' 12.3-inch rollable display which feature a 5 mm rolling radius. A 7.92" foldable (2 mm radius) wrap-around display solution. Visionox also demonstrates a 12.3" three-folded OLED that can fold inwards (2.5 mm radius) or outwards (6.5 mm) - to become a 5.4-inch display.

Visionox reports good financial result for 2020, may receive large OLED orders from Huawei and Honor

China-based OLED maker Visionox reported good preliminary financial results for 2020, with increased sales and improved revenues and profits. The company expects its net profit to be around 141-210 million Yuan ($21-31 million USD), which will represent an increase of 120-227% over 2019.

The company says that its ability to innovate OLED technologies (specially the world's first OLED with an under-the-screen camera and the world's first 144Hz refresh rate OLED) enabled the company to increase its customer base and in 2020 it has added OPPO and Motorola as customers.

trinamiX announces an under-the-OLED 3D imaging sensor

Germany-based trinamiX, a subsidiary of BASF, announced that it has developed an under-the-OLED 3D imaging sensor. This technology can enable high performance face authentication while working behind the display.

trinamiX's technology captures 2D images, 3D images and also performs what the company refers to as a "live skin" test that cannot be tricked by a full-face mask, a 2D image printout or even a 3D sculpture. The hardware consists of just a standard CMOS sensor and a near-infrared light projector.

Samsung introduces an under-the-OLED camera technology for laptop displays

Samsung Display is introducing a new OLED display technology, called "Samsung Blade Bezel" - which includes an under-the-display camera embedded within a laptop display. This enables reducing the bezels:

We have already seen similar technology from Visionox adopted in smartphones - but the performance is disappointing. A few months ago ZTE announced the first smartphone with an under-the-OLED camera - the The Axon 20 5G.

An Axon 20 5G teardown explains the under-the-OLED selfie camera technology

A couple of months ago ZTE announced the first smartphone with an under-the-OLED camera - the The Axon 20 5G. The phone is now shipping, and first reviews are quite dismal in terms of the quality of the selfie camera - and the effect on the screen.

YouTuber JerryRigEverything performed an interesting teardown of the Axon 20 5G, where he shows how the technology works - there's a small transparent OLED display right on top of the camera that is attached to the regular punch-hole display. The display in this phone is made by Visionox.