Core Viewpoint - Samsung Display has officially registered its QD-OLED five-layer organic light-emitting structure as the QD-OLED Penta Tandem trademark, aiming to market it as a high-end technology brand [1][5]. Group 1: Technology and Performance - QD-OLED technology utilizes blue OLED as a light source, achieving color reproduction through quantum dots, where the efficiency and durability of blue OLED directly impact panel quality [3][7]. - Starting in 2025, Samsung Display will upgrade the blue OLED stacking structure from four layers to five layers, incorporating the latest organic materials for technological iteration [3][7]. - The increase in the number of organic material layers is directly related to achieving higher resolutions, which leads to increased pixel density and smaller individual pixel light-emitting areas [9]. - Samsung Display has achieved a pixel density of 160 PPI on a 27-inch ultra-high-definition (3840×2160) display, setting an industry benchmark for self-emissive displays [4][9]. - The five-layer structure enhances panel luminous efficiency by 1.3 times and extends lifespan to twice that of the four-layer structure, with peak brightness reaching 4500 nits for TV panels and 1300 nits for monitor panels, both being industry-leading levels [4][9]. Group 2: Certification and Future Plans - Panels equipped with the five-layer tandem technology can help end products achieve VESA's DisplayHDR True Black 500 certification, which requires a pure black display brightness of less than 0.0005 nits and a brightness of no less than 500 nits at 10% pixel activation [10]. - Samsung Display plans to fully apply the five-layer tandem technology across its flagship panel product line by 2026, following the launch of the 27-inch ultra-high-definition panel in 2025 [5][10]. - The technology will also be extended to 31.5-inch ultra-high-definition, 34-inch wide ultra-high-definition (WQHD) panels, and 49-inch dual ultra-high-definition (5120×1440) panels in the second half of 2026 [5][10]. - The five-layer tandem technology is already being utilized in high-end OLED TV product lines for core customers [10].