This isn't identical to the phosphorescent blue hybrid tandem architecture that LGD announced in May, but maybe? This one only uses two layers of blue with a single layer of red and green.
thelec.kr
Apple is exploring tandem OLED for the iPhone.
Reporter Lee Gi-jongApproved 2025.08.04 17:15Comments 0
Apple is exploring ways to reduce iPhone OLED power consumption, with
LGD proposing a tandem partnership with Apple. Apple is also inquiring about Samsung Display.
(Source: Apple)
Apple is reportedly considering applying tandem organic light-emitting diodes (OLEDs) to the iPhone.
According to industry sources on the 4th, LG Display proposed Simplified Tandem OLED to Apple late last year, and Apple subsequently inquired about the technology to Samsung Display.
Apple sets a mass production plan and releases its products after about two years of development. Since Apple has yet to decide on and develop tandem OLED displays for the iPhone with partners like LG Display and Samsung Display, their implementation is expected to take place after 2028.
Tandem OLED refers to a product with two or more light-emitting layers stacked on top of each other. Tandem OLED increases luminous efficiency, reducing power consumption and producing brighter light with the same power consumption. Because power consumption is reduced, the same battery capacity can be used for longer.
Current iPhone OLEDs use a single-stack method, depositing red (R), green (G), and blue (B) subpixels in a single layer. Apple's tandem OLED for the iPhone, which is currently under consideration, stacks only the B subpixel among the RGB subpixels in two layers. This method, where only B is stacked in two layers and the remaining G and B are stacked in a single layer, is called a "simplified tandem" in the industry.
The term "simplified" originates from a comparison with the standard two-tandem method, which stacks all RGB subpixels in two layers. Apple's OLED iPad (tablet) panel, first released last year, used two-tandem OLED, stacking all RGB subpixels in two layers. iPads have a longer replacement cycle than smartphones, and OLED iPads are high-end models, so they used two-tandem OLED.
What is noteworthy is the difference in position between Apple, LG Display, and Samsung Display.
LG Display's proposal to Apple for the Simplified Tandem appears to reflect its belief in its superior tandem technology. Several years ago, LG Display had already proposed to Apple the idea of applying tandem OLED to the iPhone. At the time, Apple reportedly responded that it had no plans to use tandem OLED in the iPhone, but would consider applying it to IT products. The OLED iPad, an IT product released by Apple last year, was the first to feature two-tandem OLED displays.
Last year, LG Display also supplied more iPad OLED panels to Apple than Samsung Display. LG Display has also been producing automotive OLED panels using a two-tandem approach.
While Apple expressed interest in LG Display's proposal, it appears it believes it can only consider mass production once other panel manufacturers, such as Samsung Display and BOE, are ready. If a single company becomes the sole supplier of a specific product, Apple's negotiating power for pricing will be weakened.
Samsung Display was behind LG Display in developing tandem OLED technology. However, Samsung Display also supplied OLED panels for iPads last year, and starting this year, all new vehicle OLED projects will be developed using the two-tandem approach. In the past, single-stack products accounted for a large portion of Samsung Display's mass-produced vehicle OLEDs.
Regarding Apple's consideration of applying tandem OLED to the iPhone, LG Display and Samsung Display officials responded, "There is nothing we can confirm" and "We cannot confirm anything," respectively.
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