OLED Polarizer - Page 2

Omdia sees 73 million foldable AMOLEDs displays shipped in 2025

Omdia says that the global foldable OLED display market will grow from 700,000 units to 3.9 million in 2020 (a 5X increase) - and will continue its fast growth to reach 73.1 million in 2025.

TCL foldable OLED device prototype, MWC 2019

Omdia says that the main challenge of the foldable OLED market is the reliability of the displays - mainly the cover, the touch sensor and the polarizer films. Display makers will need to adopt new technologies such as ultrathin glass covers (UTG), touch sensors on TFE and color filters on TFE

Read the full story Posted: May 03,2020

Researchers develop PLED materials with circularly polarized luminescence

Researchers from the Imperial College London developed a new class of PLED materials that exhibit circularly polarized luminescence. Basically this means that the new materials emit polarized light which could make for more efficient Polymer-OLED devices as none of the light will be blocked by the external anti-glare circular polarizer added to the display.

Polarized eimssion from PLED materials (Imperial College London)

In 2013 researchers from the ICL has reported they are researching the usage of Helicenes as emitter materials in PLED devices that also emit circularly polarized light - the researchers termed these devices CP-OLED (Circularly-Polarized OLED). Helicenes materials are thermally-stable polycyclic aromatics with helically-shaped molecules.

Read the full story Posted: Jul 05,2019

Visionox's latest 7.2" foldable OLED prototype can withstand 200,000 folding cycles

Visionox developed a 7.2" foldable AMOLED display, and has tested its reliability. Visionox says that even after 200,000 folding cycles, the display still showed good reliability. Visionox also performed extensive surface hardness and ball/pen drop tests on this display.

Visionox will discuss the reliability and failure mode analysis of its foldable OLEDs at SID Displayweek 2018 in May - and will also hopefully demonstrate this new display. Visionox performed the tests on a display module that included the AMOLED panel, a touch layer and a thin circular polarizer layer.

Read the full story Posted: Mar 16,2018

Light Polymers introduce the world's thinnest OLED circular polarizer

US-based Light Polymers launched a new circular polarizer for OLED displays based on its lyotropic liquid crystal technology. The new polarizer is said to be the world's thinner polarizer at only 45 µm.

Light Polymers lyotropic liquid crystal OLED circular polarizer image

These lyotropic liquid crystals are water-based, and can be coated using industry standard coating equipment at nearly room temperatures. This enables the company to produce these displays at a lower-cost compared to alternatives, and its production line can currently coat around 30-40 million m2 per year, costing a tenth of the capex and lower energy costs than competing processes (this is according to Light Polymers, of course).

Read the full story Posted: Dec 07,2017

Samsung to expand adoption of Y-OCTA flexible OLED displays

According to ETNews, Samsung aims to expand the adoption of its Y-OCTA touch technology which will be used in both versions of its Galaxy S9 (5.77" and 7.22"). In the Galaxy S8, only the 5.77" version uses Y-OCTA, the larger variant uses Samsung's film-type touch.

Samsung Y-OCTA vs add-on touch (IHS)

Y-OCTA (which apparently stands for Youm On-Cell Touch AMOLED) describes Samsung's On-Cell flexible (hence Youm) AMOLED touch technology. The touch sensor in Y-OCTA displays is deposited directly on the encapsulation (TFE) layer which is better than the add-on (or film-type) touch used in older flexible AMOLEDs generations. The optical features are better as the touch layer is below a polarizer and enables the use of a non-ITO grid, there's no need for a support film (see image above) and the number of layers is lower. Samsung estimates that Y-OCTA also cuts production costs by around 30%.

Read the full story Posted: Aug 18,2017

BOE's new OLED, LCD and QD displays from SID 2017 shown in video

Last month BOE demonstrated several exciting new display technologies at the SID DisplayWeek, and now we have this very nice (and long) video that shows most of BOE's new displays.

We start with a tablet-phone device, a 7.56" foldable touch-enabled OLED that features an QXGA (2048x1536) resolution, a bending radius of 5 mm and a contrast rate of over 70,000:1.

Read the full story Posted: Jun 22,2017

Samsung reportedly demonstrated new OLED technologies - including polarizer-free OLEDs and 1,200 PPI VR displays

According to the Korea Herald, Samsung Electronics demonstrated several new display technologies in a private room during the Mobile World Congress last month. All of these technologies are expected to enter production within the next year or two, according to the source quoted by the report.

1,200 PPI AMOLED for VR

The report claims that Samsung demonstrated a high-resolution AMOLED panel for VR applications. The AMOLED on display featured a 1,200 PPI - much higher than Samsung's current highest density displays which are 577 PPI. Samsung's aim is to reach 1,500 PPI which will greatly enhance the VR experience.

SDC 806 PPI VR OLED at SID 2016

In November 2016 Sunic Systems announced that it developed an plane-source evaporation-FMM based AMOLED production process that can reach very high densities. The 100um mask announced in November can achieve a PPI of 1,500. This may be the system that Samsung is now testing. Sunic says that eventually this technology will enable even 2,250 PPI.

Read the full story Posted: Mar 23,2017

Light Polymers raised $24.3 million to scale up its OLED solutions

US-based Light Polymers announced a $24.3 million Series A funding round, to advance its OLED display technology and scale up production.

Light Polymers is developing products based on lyotropic liquid crystals for several applications - including OLED displays. Using the new funds, Light Polymers aims to expand its OLED R&D and scale up the chemistry and film production of its 35 micron-thin OLED circular polarizer. Light Polymers also aims to develop a 10-micron OLED polarziers.

Read the full story Posted: Mar 19,2017

AUO introduces a bi-directional foldable AMOLED display

A couple of weeks ago, at IDW 2016, AU Optronics introduced a new bi-directional foldable AMOLED display. This display can be bent both inwards and upwards, unlike previous foldable AMOLED prototypes which can only be bent in one direction.

AUO foldable bi-directional AMOLED structure

AUO says that the AMOLED structure limits the flexibility, and to overcome this the company replaced the circular polarizer usually used with a thin (10um) color filter array (apparently this is an WRGB display). AUO also used specially-located TFT and TFE (encapsulation) layers that endure many folding cycles - AUO says that the display can be bent more than 1.2 million times in 4mm curvature radius. The entire display thickness is 100 um.

Read the full story Posted: Jan 02,2017