With the rapid iteration of digital display, smart office, and multimedia communication industries, the dual screen linkage solution of small screen touch control and large screen immersive display is gradually replacing the traditional single screen static playback mode and becoming a standard digital solution for digital exhibition halls, government and enterprise conference rooms, commercial spaces, and smart homes. By relying on low latency flying screen transmission, bidirectional interactive control, and real-time synchronization technology in the local area network, large and small screens break down hardware barriers, achieve content interoperability and operational control, and reconstruct a new logic for information transmission and human-computer interaction.

1、 What is the dual screen linkage of large and small screens?

The dual screen linkage consists of two hardware components: a touch screen (query all-in-one machine, tablet, touch desk) and a high-definition large screen (LED display screen, splicing screen, conference tablet, projection screen), which are combined with a customized interactive system to achieve collaborative work. It is divided into two core interaction modes:

1. Unidirectional flying screen push (mainstream exhibition hall mode): Visitors and guides can click, slide, and drag materials, images, videos, 3D models, and graphic materials on the small screen to be "flown" to the large screen for full screen playback with one click. The small screen retains the operation menu, while the large screen focuses on high-definition display, achieving the effect of "selecting content on the small screen and viewing on the large screen". This model is widely used in planning halls, museums, and corporate exhibition halls, where visitors can independently search for exhibits, industry data, and urban planning without the need for dedicated personnel to explain and explore the content.

2. Two way mutual control and collaboration (high-end solution for office meetings) supports two-way control, which can switch pages and annotate marks on the small screen, as well as directly control small screen files through touch reversal on the large screen, drag and drop documents across screens, share clipboards, and combine with wireless low latency transmission. The end-to-end latency of 4K images can be controlled within 50 milliseconds without screen tearing or stuttering problems, suitable for business reporting, project review, and remote collaboration meetings.

2、 Multi scenario landing application, covering the digital needs of the entire industry

1. Digital Exhibition Hall (Core Application Scenarios)

A large number of dual screen collaborative exhibitions have been launched in the Planning Museum, Party History Museum, Corporate Image Museum, and Intangible Cultural Heritage Museum, solving the pain points of traditional exhibition boards with thin information and low audience participation.

Urban sand table support: Touch the small screen to select the area, and the large screen synchronously displays the comparison of industrial, transportation, and cultural tourism data in the area;

Exhibition of cultural relics and craftsmanship: browsing the cultural relics catalog on the small screen, playing restoration videos and close-up shots of craftsmanship details on the large screen;

Enterprise achievement display: The guide switches the development history, project cases, and patent data through the touch screen, and the large screen synchronizes high-definition rendering, making the visual impact stronger. Industry data shows that exhibition halls equipped with dual screen interactive exhibition items have an average audience stay time that is more than 40% longer than traditional static exhibitions, and the efficiency of information reception is significantly improved.

2. Government, enterprise, business office and conference space

Enterprise conference rooms and government reporting halls use conference tablet touch screens/mobile tablet linkage to reconstruct office collaboration efficiency:

Plan report: Full screen presentation of PPT on the main screen, synchronized storage of reference drawings and data tables on the small screen, without the need to repeatedly switch windows;

Project review: Display 3D CAD models on the large screen, retrieve component parameters on the small screen, and make bidirectional annotations for modifications;

Cross departmental remote collaboration: Multi terminal screen cloud synchronization, remote personnel can independently control split screen content, reducing communication costs by 27%.

3. Smart home and multimedia entertainment

The small screens of mobile phones and tablets, along with the large screen of televisions, form a dual screen ecosystem for households. Watching movies on screen, online interaction, and buying while watching have become mainstream habits. Users can push movies, TV dramas, and short videos to the large screen of the TV through their mobile phones, allowing for immersive viewing on the large screen. The small screen completes bullet screen interaction, ordering, shopping, and social sharing, forming a complete content consumption loop. Over 50% of users frequently use the screen mirroring function on both large and small screens in their daily lives.

4. Commercial retail and public spaces

The mall guide, brand stores, and event check-in wall adopt dual screen linkage: customers can query store and event information on the touch screen, and the large screen displays real-time store reality and promotional activities; Electronic check-in for offline activities, with the signature screen synchronized to the outdoor screen, creating a high-tech check-in scene and enhancing the popularity and brand quality of the venue.

3、 Advantages of core technology for large and small screen linkage

Clear division of labor and hierarchical presentation of information

1. The small screen is responsible for interactive operation and detail inquiry, while the large screen is responsible for collective viewing and panoramic display, avoiding visual congestion caused by stacking operation buttons and high-definition images on a single screen, and achieving "details can be deeply explored, panoramic view can be viewed".

2. Zero threshold operation, suitable for all age groups

The interactive logic follows the sliding and tapping habits of mobile phones, without the need for professional training, and can be quickly mastered by both the elderly and teenagers; The system supports custom interfaces that are suitable for different user groups such as exhibition hall science popularization, business reporting, and commercial traffic attraction.

3. Lightweight operation and maintenance, flexible content updates

4. Equipped with a cloud based content management backend, management personnel can remotely upload and replace video, graphic, and textual materials without the need for on-site equipment disassembly and assembly; The entire system has low power consumption, strong stability, and supports 7 × 12 hours of uninterrupted operation, reducing later maintenance costs.

5. Enhance the quality of spatial technology and create differentiated highlights

Compared to traditional single display screens, dual screen linkage comes with dynamic flying screens and cross screen animation effects, becoming the core visual highlight of exhibition halls, conference rooms, and stores, strengthening the digital and intelligent brand image.

From exhibition halls to business offices, from home entertainment to commercial marketing, the dual screen linkage of large and small screens is no longer a niche digital exhibition item, but a standardized interactive solution for digital spaces. It breaks down the information barrier between the operating end and the display end, balances the convenience of interaction and visual immersion, and helps various industries achieve digital upgrading with lower landing costs and stronger interactive effects. With the continuous iteration of display technology and cross end collaborative systems, the linkage of large and small screens will penetrate more segmented scenarios and become an irreplaceable core technology in the digital display industry.