HD-B6 playback and HDMI splicing for advertising displays
The Huidu HD-B6 combines synchronous HDMI playback, asynchronous content playback, USB playback and image scaling. Individual advertising displays can run separate programs, or multiple B6 units can form an HDMI splicing display. Built-in Wi-Fi allows content updates from a mobile app.
Loading and hardware specifications
| Parameter | Specification |
|---|---|
| Single B6 loading | 1.3 million pixels; maximum width 3840, maximum height 2048 |
| Multiple-B6 HDMI splicing | 2.3 million pixels; maximum width 3840, maximum height 4096 |
| Module compatibility | Indoor/outdoor full-color and single-color modules; conventional and mainstream PWM chips |
| Scan mode | Static through 1/64 |
| Grayscale | 256–65,536 adjustable levels |
| Flash storage | 8 GB; USB-drive expansion |
| Video | HD hardware decoding; 60 Hz frame-rate output |
| Communication | 100M/1000M RJ45 Ethernet, Wi-Fi, 3G/4G, LAN and USB |
| Inputs listed | 12 V power adapter; 1 × Gigabit RJ45; 1 × USB 2.0; HDMI; sensor port; GPS; test button; optional 4G |
| Outputs listed | 1 × Gigabit RJ45; audio; HDMI |
| Audio | Two-channel stereo |
| Power | 18 W |
| Working temperature | −40°C to 80°C |
Maximum width and height are separate limits within each loading capacity. They do not mean that every combination of maximum dimensions is supported. Values above follow the HD-B6 V1.0 manual dated May 14, 2020.
Content formats and display functions
Supported video formats include AVI, WMV, RMVB, MP4, 3GP, ASF, MPG, FLV, F4V, MKV, MOV, DAT, VOB, TRP, TS and WEBM. Images include BMP, GIF, JPG, JPEG, PNG, PBM, PGM, PPM, XPM and XBM. Text, RTF, HTML and Office documents (DOC, DOCX, XLS, XLSX, PPT and PPTX) are also listed.
Use analog or digital clocks, timed content and image backgrounds alongside advertising programs. Temperature, humidity, brightness and PM-value functions are listed. Synchronous picture scaling supports live-screen playback without a separate video processor for the supported configuration.
Controller images


Download specification
HD-B6 advertising and splicing controller specification PDF
Frequently Asked Questions
What is the pixel capacity of one HD-B6?
The V1.0 manual specifies 1.3 million pixels for one B6, with a maximum width of 3840 pixels and maximum height of 2048 pixels, subject to the total loading limit.
What is the B6 HDMI splicing capacity?
The specification lists 2.3 million pixels for multiple B6 units connected for HDMI splicing, with separate maximum dimensions of 3840 pixels wide and 4096 pixels high.
Can each B6 advertising display play independently?
Yes. Independent playback allows each display to run its own program. HDMI-connected units also support splicing playback.
Does B6 include storage and Wi-Fi?
It has 8 GB onboard flash storage, USB-drive expansion and a standard Wi-Fi module for mobile-app content updates.
Can HD-B6 display a live HDMI signal?
Yes. HDMI input supports synchronous playback, and the controller supports automatic scaling of the synchronous image.








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