Core Viewpoint - The article discusses the upcoming flagship screens from a top 5 smartphone manufacturer, highlighting the use of 2.5D large displays and advancements in OLED technology for their high-end models [1][2]. Group 1: Screen Specifications - The flagship series will feature two screen sizes: 6.75" ± 1.5K and 6.89" ± 1.5K, both utilizing 2.5D large displays [1][2]. - The "big cup" and "super big cup" models are expected to incorporate dual-layer OLED technology, with the "big cup" currently under evaluation for dual-layer OLED [2][3]. Group 2: Model Identification - The leaked information is believed to pertain to the Huawei Mate 90 series, with the "big cup" referring to Mate 90 Pro, the "big big cup" to Mate 90 Pro Max, and the "super big cup" to Mate 90 RS [3]. Group 3: Technological Advancements - Huawei has made significant investments in its screen supply chain, aiming to commercialize the next-generation OLED technology, which includes dual-layer OLED and BT.2020 standards, with improvements in display lifespan, power consumption, brightness, and color gamut [4].

Core Viewpoint - Apple is considering implementing dual-layer OLED technology, which was previously showcased in the iPad Pro, into its iPhone lineup, potentially aligning with the 20th anniversary of the iPhone in 2024 [1][3]. Group 1: Dual-layer OLED Technology - Dual-layer OLED, or stacked OLED technology, involves stacking two or more layers of OLED materials to enhance screen performance [6][10]. - This technology promises higher peak brightness and improved energy efficiency, leading to better battery life and display quality, especially in outdoor and HDR scenarios [11][19]. - The dual-layer OLED technology has already been adopted by other manufacturers like Huawei and Honor, indicating a trend towards making it a standard feature in flagship smartphones [4][5][18]. Group 2: Challenges and Production Issues - The production of dual-layer OLED screens faces significant challenges, including high material costs and the need for precise alignment during manufacturing [23][24]. - The technology's complexity can lead to issues with uniformity in brightness, which has been a historical problem with OLED displays [26][29]. - Despite the advantages, the high costs and production difficulties have limited the widespread adoption of dual-layer OLED screens, with only a few high-end models currently utilizing this technology [25][36]. Group 3: Future Prospects and Market Trends - The dual-layer OLED technology is seen as a transitional solution until more advanced display technologies, like micro-LED, become commercially viable [51][58]. - As manufacturers seek to reduce power consumption and enhance display quality, dual-layer OLEDs are positioned to meet these demands, making them attractive for various consumer electronics [57][60]. - The development of domestic supply chains for dual-layer OLED technology presents opportunities for local manufacturers, with companies like BOE already producing competitive products [63][64].

Core Viewpoint - The adoption of tandem OLED technology by companies like OPPO, vivo, and Xiaomi is expected to enhance display performance and efficiency, following its implementation by Apple, Huawei, and Honor [1][4]. Group 1: Technology Overview - Tandem OLED technology utilizes a charge generation layer (CGL) to connect multiple RGB emitting units, resulting in improved efficiency and performance compared to standard OLED [1]. - The introduction of tandem OLED screens is projected to increase brightness levels significantly, with potential peak brightness reaching up to 5000 nits in devices like the Honor Magic6 RSR [3]. Group 2: Benefits of Tandem OLED - The technology can reduce power consumption and enhance battery life by achieving the same brightness with lower current, or higher brightness with the same current [4]. - It also extends the lifespan of screens, as each emitting layer experiences only half the electric field strength compared to single-layer OLEDs, leading to reduced thermal effects and slower degradation [4]. Group 3: Market Implications - Honor is set to globally launch the first tandem OLED screen in March 2024, claiming a 50% increase in luminous efficiency [1]. - Apple is reportedly exploring the integration of tandem OLED technology into future iPhone models, with expectations for its debut in the iPhone 20 series by 2028 [4].

Core Viewpoint - The mobile phone industry is exploring the adoption of ultra-high refresh rate screens, specifically 165Hz, as companies like REDMI and OnePlus are investigating this technology, potentially signaling a shift towards higher refresh rates in smartphones [1][3][10]. Group 1: Current Market Trends - The mainstream refresh rate for mobile phones is currently 120Hz, with some mid-range devices featuring 144Hz. However, the practical benefits of moving from 120Hz to 144Hz are minimal, leading to skepticism about the necessity of 165Hz screens [3][6]. - The 165Hz refresh rate offers a 37.5% improvement over 120Hz, but the actual user experience may not significantly differ due to software limitations, as many applications are locked at lower frame rates [6][10]. Group 2: Technical and Economic Considerations - The introduction of 165Hz screens may face challenges such as increased costs and power consumption, which could negatively impact battery life and overall device performance [7][10]. - Historical examples, like the Sharp Aquos Zero2 with a 240Hz screen, illustrate that high refresh rates can be underutilized if software does not support them, leading to a disconnect between hardware capabilities and user experience [7][10]. Group 3: Future Outlook - Despite current limitations, the push for 165Hz screens could drive competition among manufacturers, potentially leading to broader adoption and improved software support in the future [15][18]. - The competition for high refresh rates is part of a larger strategy for companies to define "smooth experience" in mobile devices, with early adopters likely gaining a competitive edge [18][23].

Core Viewpoint - Apple has initiated a two-year production plan to implement advanced OLED technology in iPhone models, with dual-layer OLED expected to debut after 2028 [1] Group 1: Technology Development - The iPad Pro has already commercialized dual-layer OLED screens, known as "Tandem OLED," which adds an extra layer of light-emitting material to traditional single-layer OLED [1] - This design allows the light-emitting demands to be distributed across two layers, significantly reducing the electric field intensity on each layer and slowing down the aging of the light-emitting materials [1] - The theoretical brightness of dual-layer OLED can reach twice that of single-layer OLED, providing users with a brighter display while addressing issues like light leakage [1] Group 2: Application in iPhone - The dual-layer OLED technology for iPhone will differ slightly from existing solutions, as Apple will only stack the blue sub-pixels in a dual-layer configuration, while the red and green sub-pixels will remain single-layer [1] - This approach is referred to as a "simplified dual-layer OLED" within the industry [1]