PPI | OLED-Info

INT Tech "lights up" its first OLED microdisplay, a 0.7" RGB 2300 PPI panel

In January 2019 Taiwan-based INT Tech unveiled its proprietary glass-based high pixel density OLED technology, and the company now announced that its first prototype display was produced and successfully tested.

INT Tech's display is a 0.7" 2,300 PPI real RGB side-by-side AMOLED display. INT Tech says that its technology enables larger displays with higher brightness, lower power consumption and a wider color gamut compared to currently available OLED microdisplays which are produced on silicon.

Read the full story Posted: Jan 26, 2020

Xiaomi shows the fold-around Mi Mix Alpha concept smartphone in its HK store

In September 2019 Xiaomi unveiled a new "concept" smartphone, the Mi Mix Alpha, which uses a foldable OLED screen wrapped around the phone. Xiaomi said this phone will be produced in small quantities (with a price tag of around $2,800) and indeed it is now displaying it in its shop in Hong Kong:

The AMOLED display, produced by Visionox, is 7.92" in size with a resolution of 2088x2250 (388 PPI).

Read the full story Posted: Dec 05, 2019

Holst Center researchers use sALD to create IGZO OLED display backplanes on PEN foils

Researchers from the Holst Center has applied spatial atomic layer deposition (sALD) to create both the semiconductor and dielectric layer in a thin-film transistor (TFT) Oxide-TFT (IGZO) display backplane - for the first time ever.

Holst sALD QVGA OLED prototype photo

The researchers created a 200 PPI QVGA OLED display prototype on a thin PEN foil. This shows how TFTs can be produced in a low temperature process (below 200 degrees Celsius) using sALD on a cheap transparent plastic foil. The TFTs achieved a mobility of 8 cm²/V2 with channel lengths down to 1 um.

Read the full story Posted: Nov 18, 2019

TEL announces a new OLED R&D ink-jet printing system

Tokyo Electron (TEL) announced a new OLED R&D inkjet printing system, the Elius 500 Pro that is capable of printing on 2-Gen substrates (370x470 mm).

TEL Elius500 Pro photo

The Elius 500 is able to accommodate 12 kinds of inks and can produce red, blue and green sub pixels at the same time. The maximum display density is 200 PPI.

Read the full story Posted: Oct 17, 2019

BOE starts shipping its 0.39" FHD OLED Microdisplay, we offer it at the OLED Marketplace

In March 2017 OLED maker BOE Technology and OLED microdisplay maker OLiGHTEK announced a new $170 million joint-venture to produce OLED microdisplays for the consumer VR and AR markets. BOE now finally started shipping its first OLED microdisplay - a 0.39" Full-HD (1920x1080, 5644 PPI) one.

We are happy to report that this new high-quality display is already listed at the OLED Marketplace, and we have access to this display at a relatively low cost. Contact us if you are interested in this display.

Read the full story Posted: Sep 30, 2019

AUO to demonstrate its first ink-jet printed OLED, a 17.3" 120Hz 4K display

AU Optronics has been developing OLED ink-jet technologies for many years, according to reports, and has setup a 3.5-Gen pilot ink-jet OLED printing line. Today AUO announced that the company is going to showcase its first ink-jet printed OLED panel at Touch Taiwan 2019.

AUO inkjet printed 17.3'' 4K OLED display prototype photo

AUO will demonstrate a 17.3" 4K (225 PPI) OLED display that was produced using an ink-jet printing process. AUO says that the display features a 120Hz refresh rate, a wide color gamut and high brightness (that AUO did not yet specify). AUO will also showcase 5.6" foldable OLEDs that can be folded inwards or outwards for customized design according to client requirements. The display's folding radius is 4 mm and it can be folded over 200,000 times. AUO will also demonstrate a 12.1" LTPS Micro-LED prototype, which seems to be the same one shown in 2018.

Read the full story Posted: Aug 23, 2019

Here are Semiconductor Energy Laboratory's latest foldable and high-density OLED displays

Japan's Semiconductor Energy Laboratory (SEL) is developing several exciting OLED technologies, and the company demonstrated its latest panels at SID DisplayWeek. The recently published video below shows the company's OLED technologies shown at the event:

First up is the world's smallest 8K display, a 8.3" OLED (1058 PPI) with a resolution of 7680x4320. The panel is based on a white OLED with color filter architecture and SEL's proprietary CAAC-IGZO (c-axis aligned crystalline In-Ga-Zn-O) backplane material.

Read the full story Posted: Jul 19, 2019

Visionox shows new foldable, flexible and automotive OLED Displays at SID 2019

China-based OLED producer Visionox has demonstrated several new OLED technologies at SID DisplayWeek 2019 last month, and the following great video shows the company's impressive booth and displays.

First up is a foldable OLED display that can be folded inwards and outwards. The panel's folding radius is 5 mm, and Visionox says that it can be folded over 200,000 times. The company did not disclose the exact size and resolution, though.

Read the full story Posted: Jul 13, 2019

Semiconductor Energy Laboratory developed a 5,291 PPI CAAC-IGZO OLED display

Semiconductor Energy Laboratory (SEL) has developed a high density OLED display (5,291 PPI) based on its proprietary CAAC-IGZO (C-Axis aligned crystalline In-Ga-Zn-O) backplane. SEL will discuss this new achievement at SID 2019.

We do not have more information, but SEL has shown some high resolution CAAC OLEDs before. In 2014 it demonstrated a 2.8" 2560x1440 (1,058 PPI) WRGB OLED display. If SEL indeed developed a 5,291 PPI OLED display on glass it is very impressive.

Read the full story Posted: Mar 15, 2019

Tianma demonstrates transparent and ink-jet printed OLED prototypes

Tianma demonstrated new display technologies at Embedded World in Germany, including two new OLED prototypes. First up is a 10.3" 91 PPI transparent AMOLED panel that features a transparency of up to 50% and high brightness (not disclosed).

The second display is a 4.92" 403 PPI AMOLED that was produced using an ink-jet printing process. Tianma's technology was jointly developed with Guangdong Juhua Printing and Display Technology (which was established in 2016 by CSoT and TianMa).

Read the full story Posted: Feb 28, 2019