At the technology exhibition area of the 2025 Asia Pacific Economic Cooperation (APEC) summit, LG Electronics' dynamic media art chandelier became the focus -28 77 inch transparent OLED TVs suspended in a circular hanging form, with screens freely switching between transparent and opaque modes, sometimes presenting deep-sea scenery, and sometimes transforming into interstellar flowing light. This scene not only showcases the ultimate aesthetics of OLED transparent screens, but also indicates that display technology is transitioning from a "physical carrier" to a "spatial interactive interface" paradigm.

OLED transparent screen is a display device based on organic light-emitting diode (OLED) technology. Its core lies in the combination of transparent conductive layers (such as indium tin oxide, nano silver wires) and organic light-emitting materials to achieve the visual effect of "light on display, light off transparent".
Working Principle:

Self luminous characteristics: Each pixel emits light independently without relying on a backlight source, and the brightness of organic materials is controlled by current to form an image.

Transparent structure: composed of a transparent substrate (such as glass or flexible plastic), transparent electrodes (such as ITO or ultra-thin metal layers), and organic light-emitting layers. Light can penetrate the screen and display content overlaid with the environmental background.

Pixel level control: Unilluminated pixels maintain high transparency, while illuminated pixels present bright colors, achieving a display effect of virtual real fusion.

2、 Technical features and advantages

High transparency: The light transmittance can reach over 85% when turned off (such as LG transparent OLED screens), and the transparency during operation is about 40%, far exceeding traditional LCD screens (about 10%).

Flexible design and lightweight form: Supports curved, curled and other forms, with a body thickness that can be compressed to 1 millimeter and a weight of only about 3kg (such as Xiaomi transparent TV).

Application scenarios: Flexible car screens, rollable home televisions, flexible building curtain walls, etc.

High contrast and wide color gamut: The self luminous characteristic brings a million level contrast, and the color saturation covers the DCI-P3 color gamut, resulting in a delicate and realistic display effect.

Energy saving and environmental protection: No need for backlight, energy consumption is reduced by 30% -50% compared to LCD, and the material recycling rate is higher, which is in line with the trend of sustainable development.

Interaction upgrade: supports touch, gesture recognition, and virtual buttons

Diversified application scenarios:

Museum display cabinets - historical museums, art galleries, etc.

Transparent display and physical overlay: Viewers can see the cultural relics through the screen, while the screen displays 3D models, historical backgrounds, or restoration processes, enhancing interactivity and education. Restoring historical scenes of cultural relics through animation or video, such as ancient wars, daily life scenes, etc.

Temporary exhibitions and interactive installations - technology exhibitions, art exhibitions, etc.

Flexible splicing and creative forms: The screen can be bent, spliced into an arc or irregular shape, suitable for different exhibition themes.

Touch interaction: The audience explores the exhibition content and enhances their sense of participation through gestures or touch controls.

OLED transparent screens are reconstructing the connection between humans and the digital world through an interactive approach of "virtual real symbiosis". From commercial displays to smart cities, from in car ecosystems to healthcare, its application scenarios continue to expand, becoming an important direction for future display technology.