Rollable OLEDs: introduction and market status - Page 3

During Display Week 2023, BOE showcased a 15" 2560x1600 rollable OLED display.

The display offered a rollable radius of 10 mm (outwards), and can roll 50 mm of its length, changing from the full 15" 16:9 display to a 13.6" 24:9. This is not as impressive as Samsung's rollable demo that grew 5 times its original rolled size.

Samsung Display demonstrated many OLED technologies at Display Week 2023, which we'll detail below. It seems that the main new technology was the Sensor OLED Display, which is an OLED with an embedded sensor that can perform fingerprint sensing in addition to blood pressure, heart rate sensing and stress level sensing (all from reading the finger), which the company says is the first such display in the world.

The Sensor OLED Display embeds light-sensing organic photodiodes (OPDs) inside the display itself, which allows it to perform the sensing functions all over the display. Samsung explains that as OLED light is reflected differently depending on the contraction and relaxation of the blood vessels inside the finger, the OPD senses the light when it returns to the panel, and converts it into health information.

LG Display has an impressive presence  at CES 2023, showing many OLED displays, products and prototypes.

The video above starts with LG's automotive displays, which include new 18" slidable OLEDs and some more OLED and LCD displays.

As was reported two days ago, Samsung is showing a new AMOLED display at CES 2023, that is both foldable and rollable.

The so-called Flex Hybrid OLED opens up from 8-inch when closed, to 10.5" when opened - and 12.4" when fully rolled up.

According to a report from Korea, Samsung Display will unveil a new display at CES 2023, which is both foldable and slidable. The display is 8-inch in size when folded, opens up to a 10" display when unfolded, and then can be slided further to 12.4".

The display will be shown in a private booth, which will not be open to the public. It is likely that this display is still at an early stage of development, as there are many challenges such as durability and quality that Samsung will need to overcome. The report suggests, though, that Samsung is ready to soon commercialize such a panel.

During Lenovo's Tech World 2022 event, the company and its Motorola subsidiary showed new device prototypes, including two interesting rollable OLED devices.

In the video above, you can see a new laptop prototype that has a rollable OLED display, that opens up to increase the screen size. There's also a smartphone that opens from a 4-inch display to a 6.5-inch one using a rollable display.

During Intel's Innovation Day 2022, Samsung Display's CEO shows a prototype rollable AMOLED laptop display that opens up from 13-inch to 17-inch:

Over the years, Intel has been working with display makers to showcase innovative new display technologies. In early 2020 the company showed a foldable 17-inch laptop device.

BOE demonstrated its latest OLED technologies and displays at SID Displayweek 2022. The most interesting display is a 95-inch 8K HDR OLED display, produced on an Oxide-TFT panel with a white-OLED CF structure. The panel was produced using an evaporation method.

This is the first time we hear of BOE's evaporation TV program, since around 2016. The company has an active inkjet printing OLED TV project, and in December 2019 it unveiled a 55" 8K (160 PPI) printed OLED TV prototype.

Samsung Display unveils new OLED displays at SID Displayweek 2022. First up is the Flex G flexible display, which folds inwards twice, and the Flex S, that can fold both inwards and outwards.

Samsung is also new rollable displays - a 6.7" slidable display that can expand and a larger 12.4" slidable OLED that can expand from both ends. When close, the display is 8.1" in size.

According to reports in Korean media, Samsung is developing a new process which will allow it to reduce the thickness of its QD-OLED panels.

The current QD-OLED design uses two glass substrates, one for the TFT backplen (and the OLED frontplane materials), and one for the QD conversion layer. The new plan is to remove the QD glass substrate, and inkjet print the QDs directly on the OLED TFE encapsulation layer.