UPDATED. 2024-06-21 07:30 (금)
Samsung Displays reveals fine mask for RGB OLEDoS production at SID
Samsung Displays reveals fine mask for RGB OLEDoS production at SID
  • Gijong Lee
  • 승인 2024.05.16 17:12
  • 댓글 0
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LG Display unveils 10,000 nits OLEDoS of its own
Image: Samsung Display
Image: Samsung Display

Samsung Display showed off its deposition mask to be used in the production RGB OLED on silicon (OLEDoS) display at the Display Week event hosted by the Society of Information Display (SID) in the US from May 14 to 16.

Rival LG Display also showed off its own OLEDoS technology at the event, a white OLED-based display that offers 10,000 nits in brightness.

Samsung Display’s fine silicon mask (FSM) is used to deposit the OLEDs on the silicon. The mask can support up to 3,500 pixels per inch (ppi) in resolution, the company said, unveiling the mask with its RGB OLED subsidiary eMagin, which it acquired last year.

In an RGB OLEDoS, the RGB subpixels must be deposited in micrometer size, Samsung Display said, so the FSM was made for 8-inch wafers.

It makes fine holes using semiconductor lithography so it packs in pixels more densely than fine metal masks (FMM), which are used to deposit OLEDs in OLED displays for smartphones.

Samsung Display also unveiled OLED displays that just use one ultra-thin glass as the substrate to make tablets and notebooks thinner.

It also unveiled a quantum dot (QD)-LED display, which uses QD as the RGB pixel rather than a layer like QD-OLED or QLED (QD layer on a liquid crystal display). The QD acts as the emissive layer.

Meanwhile, LG Display showcased its OLEDoS which offers a 4,000 ppi resolution and a brightness of 10,000 nits. The technology uses OLED that masses through an RGB color filter.

LG Display it used a microlens array on the display to increase light efficiency to achieve the brightness level. 

Its OLEDoS showcased at Display Week was 1.3-inch sized with 4K resolution.


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