[SID2019] What material is better for cover windows of foldable OLED? colorless PI or UTG?

Since Royole introduced ‘FlexPai’, a foldable OLED phone, Samsung Electronics and Huawei have also launched Foldable OLED phones, attracting great interest from the industry and the public.

The biggest change of the foldable OLED phone currently being commercialized or under preparation is that the cover window of the glass material used in the existing flexible OLED has been changed to colorless PI material.

Colorless PI is thinner than conventional cover window glass, which is advantageous in reducing the radius of curvature and has the advantage of not breaking. UTG (ultra-thin glass), which has good surface touch-feel and scratch-resistant glass as thin as possible, is also attracting attention as a cover window material for foldable OLEDs.

At the SID Display Week exhibition in San Jose, KOLON exhibited colorless PI with hard coating. KOLON, which has been ready for mass production of colorless PI since 2018, is currently supplying colorless PI for foldable OLED cover windows to AUO, BOE, LG Display, and Royole.

Hard coating company DNP and TOYOCHEM also exhibited colorless PI with hard coating. DNP’s company official said that the film is under development and its main business area is hard coating, and TOYOCHEM’s company official said that it supplied hard coating samples to KOLON and SKC.

Meanwhile, SCHOTT, a UTG development company, also attracted the attention of the audience by displaying UTG for foldable OLED cover windows. An official of SCHOTT said that the UTG currently being developed is a cover window product for out-folding, not in-folding, and that the thickness is currently in development from 0.7 mm to 2.5 mm in accordance with customer requirements.

As the smartphone set makers are expected to release foldable OLED phones in the near future, competition for related materials is also expected to be intense. Whether the Colorless PI will continue to dominate or whether UTG will be able to exercise its influence is highlighted.

[MWC 2017] Samsung Electronics, LG Electronics, HUAWEI, and TCL Compete over OLED Smart Watches

In MWC 2017, the competition over smart watches proceeded fiercely.

The unveiling of Gear S3 by Samsung Electronics in the last IFA 2016 attracted great attention from the smart watch market. The disclosures of products that can compete with Samsung Electronics’ Gear S3 at MWC 2017 are gaining great popularity among viewers.

LG Electronics displayed G-Watch 2 Sports with 1.38-inch P-OLED and G-Watch Style with 1.2-inch P-OLED, HUAWEI exhibited HUAWEI Watch 2 and HUAWEI Watch 2 Classic with 1.2-inch AMOLED panel, and TCL showed MOVETIME with 1.39-inch AMOLED panel.

The smart watches shown by LG Electronics, HUAWEI, and TCL adopted flexible AMOLED (P-OLED) and circle types to save the designs of existing watches, and LG Electronics’ G-Watch 2 and HUAWEI’s HUAWEI Watch 2 can be used as devices independent of smartphones because they have separate sims.

LG Electronics’ G-Watch 2 Sports is equipped with 1.38-inch circle type AMOLED panel, Google Android Wear 2.0, 768MB RAM, 4GB internal memory, and 430mAh battery, and it supports IP68-level waterproof and dustproof functions and wireless charging function.

On the other hand, G-Watch 2 Style is equipped with 1.3-inch circle type AMOLED panel, Google Android Wear 2.0, 4GB internal memory, and 240mAh battery, and it supports IP67-level waterproof and dustproof functions.

HUAWEI Watch 2 is equipped with a 1.2-inch circle type AMOLED panel, Qualcomm® Snapdragon ™ Wear 2100, 1.1GHz quad-core CPU, Google Android Wear 2.0, 4GB internal memory, 768MB RAM, and 420mAh battery, and it supports various types of Watch face, an equippable Sim (4G), and IP68-level waterproof and dustproof functions.

Meanwhile, LG Electronics and HUAWEI devoted considerable spaces to the smartwatch exhibition at their booths in the MWC 2017 exhibition, and it suggests that there will be big changes in the smart watch market which is dominated by Samsung and Apple.

<G-Watch 2 Sports of LG Electronics>

<HUAWEI Watch 2 of HUAWEI.>

[MWC 2017] 삼성전자, LG전자, 화웨이, TCL, OLED 스마트 워치로 대결

MWC 2017에서는 스마트워치 경쟁도 치열하게 진행되었다.

삼성전자는 지난 IFA 2016에에서 Gear S3를 공개하며 스마트워치 시장에서 큰 관심을 불러일으켰었다. 이번 MWC 2017에서는 삼성전자의 Gear S3에 대항할 수 있는 제품들이 공개되어 관람객들의 큰 호응을 얻고 있다.

LG 전자는 1.38inch P-OLED를 적용한 G-Watch 2 Sports와 1.2inch P-OLED를 적용한 G-Watch Style을, 화웨이는 1.2inch AMOLED panel을 적용한 HUAWAI Watch 2와 HUAWAI Watch 2 Classic를, TCL은 1.39 inch AMOLED panel이 적용된 MOVETIME을 전시하였다.

LG전자와 화웨이, TCL에서 공개한 smartwatch들은 circle type으로서 기존 시계의 디자인을 살리기 위해 flexible AMOLED (P-OLED)를 적용하였으며, LG전자의 G-Watch 2와 화웨이의 HUAWAI Watch 2는 별도의 sim을 장착하여 스마트폰과 독립된 기기로 사용 가능하다.

LG전자의 G-Watch 2 Sports는 1.38inch circle type AMOLED panel과 Google Android Wear 2.0, 768MB 램(RAM), 4GB 내장메모리, 430mAh 배터리를 탑재하였으며, IP68 등급의 방수/방진 기능 과 무선충전 기능을 지원한다.

반면 G-Watch 2 Style은 1.3inch circle type AMOLED panel과 Google Android Wear 2.0, 4GB 내장메모리, 240mAh 배터리를 탑재하였으며, IP67 등급의 방수/방진기능을 지원한다.

HUAWAI Watch 2는 1.2inch circle type AMOLED panel, Qualcomm® Snapdragon™ Wear 2100, 1.1GHz quad-core (CPU), Google Android Wear 2.0, 4GB 내장메모리, 768MB 램(RAM), 420mAh 배터리를 탑재하였으며, 다양한 종류의 Watch face, Sim 장착(4G)가능, IP68 등급의 방수/방진 기능을 지원한다.

한편, LG 전자와 화웨이는 이번 MWC 2017전시회 부쓰에서 상당한 영역에 smartwatch 전시를 할애하였으며, 이를 미루어 보아 삼성전자와 Apple이 주도권을 쥐고있는 smartwatch 시장에 큰 변화를 가지고 올 것으로 예상된다.

<LG전자 G-Watch 2 Sports>

<화웨이의 HUAWEI Watch 2>