1. Display screen parameters
1. Display size: 65 inches; resolution: 3840*2160, using A-grade screen.
2. Process: using full lamination process, the distance between tempered glass and LCD panel is 0mm, without any gap, no sense of suspension when writing, no offset when touching, no ghosting when looking from the side.
3. Backlight form: DLED backlight.
4. Display ratio: 16:9; viewing angle: ≥178°; brightness: ≥500cd/m²; contrast: ≥5000:1.
5. The whole machine uses anti-glare tempered glass, and the glass transmittance is ≥88%.
6. Color gamut ≥90% NTSC; screen color depth ≥10bit; grayscale resolution level is 256 levels.
2. Specifications of the whole machine:
1. The whole machine has a multi-function physical button on the front, which supports one-key screen on and off, one-key whole machine on and off, and one-key computer on and off.
2.★Front interface: USB3.0 (Android, Windows) ≥1, HDMI input ≥1, Type-C interface (Android, Windows) ≥1.
3.Side interface: USB3.0 input ≥1, USB2.0 input ≥1, Touch USB ≥1, OPS interface ≥1, HDMI input ≥1, HDMI output ≥1, SPDIF output ≥1, Ethernet port RJ45 ≥1; Serial port (RS232) ≥1.
4.★Top interface: USB2.0*1, convenient for connecting external cameras.
5.★Front full-function TYPE-C interface, not only supports reading USB flash drives, reverse charging, DP projection, Touch back control; but also supports sharing cameras, allowing the camera of the smart tablet to be shared with other devices to build a video conference room solution.
6.★Built-in dual-chamber six-drive large speaker, power is 15W×2, supports DTS sound decoding and Dolby sound decoding, supports Dolby on or off.
7.MEMC technology: MEMC motion estimation and motion compensation technology are used to ensure stable and smooth image quality.
8. The conference tablet comes with Android system, Android version 8.0 or above, Android system CPU uses 2-core A73 + 2-core A53 with a main frequency of 1.7GHz, GPU uses 4-core Mali-G51, system memory 4GB, storage capacity 32GB.
9. Built-in microphone: built-in 6 microphone array, 8-meter pickup distance, 180-degree pickup, automatic gain.
10.★Intelligent noise reduction: The suppression performance of noise and speakers interfering in different directions is > 30dB; the suppression performance of instantaneous non-steady-state interference such as keyboard sound is > 10dB.
11. The microphone supports adaptive filter algorithm, the internal echo processing tail length can reach 700ms, the echo cancellation algorithm can eliminate echoes ≥ 70dB at most, and the convergence speed is ≥ 50dB/s.
12.★NFC screen transmission: Touch the NFC module of the large screen with a mobile phone with an NFC module to realize screen projection between the mobile phone and the large screen.
13.★Without any physical buttons, users can use five-finger gestures to call up the touch control menu on the screen at any signal source channel and any position of the screen to perform functions such as signal source switching/volume adjustment/full channel annotation/switch to home page/return to the previous operation/whole machine settings/window and Android system switching/screenshots.
14. Automatic signal source identification: Supports automatic identification and switching to the corresponding channel after the external signal is connected, and can automatically return to the previous channel after the external device is disconnected.
15. Screen off energy saving: The whole machine supports one-button turning off and on of the LCD backlight, and audio files can be played in the backlight off energy saving mode.
16. Intelligent eye protection: The whole machine supports eye protection mode. When the eye protection mode is turned on, the brightness of the whole machine is reduced to effectively protect eyesight.
17. Intelligent brightness adjustment: The whole machine can automatically adjust the screen display brightness according to changes in ambient light.
18.★Natural display: After turning on the whiteboard function, the screen brightness will automatically decrease.
19.Automatic screen saver: The whole machine supports entering the screen saver state without signal and operation, and users can set the screen saver time by themselves.
20.Automatic standby: The whole machine supports entering the standby state without signal and operation, and users can set the standby time by themselves.
21.Timed power on and off: The whole machine supports the timed power on and off function, and supports setting three sets of timed power on and off time.
22.Customized power-on status: Users can customize the power-on status, and support three states of memory power-on status, power-on, and power-on standby.
23.OTA upgrade: The whole machine supports two modes: automatic upgrade and manual upgrade. Automatic upgrade means OTA upgrade function OTA (Over-the-Air Technology) air download technology.
24.Built-in WiFi and Bluetooth: Support 2.4G/5.0G, support customized channel selection, which can effectively avoid signal instability caused by network conflicts; the whole machine supports Bluetooth 5.0.
3. Touch parameters
1. Touch technology: Infrared touch technology is used, supporting 20-point touch, supporting 20-point simultaneous writing, and supporting writing and erasing.
2. Supports single/multi-person writing. When writing at a single point, multi-point touch is gesture operation.
3. Touch resolution: 32768×32768; first point response time ≤4ms, continuous response time: ≤2ms, effective touch recognition ≥2mm, touch height ≤3mm, positioning accuracy: ±1mm, writing delay time ≤35ms.
4. Pluggable camera (optional)
1. ★SONY 4K surveillance-level image sensor, which can capture clear images even in a light environment with an illumination as low as 0.1Lux.
2. ★Electronic zoom: Supports 3x electronic zoom, and can adjust the preset shooting position.
3. Support output of MJPEG, H.264, H.265 encoding formats 4K 30fps, 1080P 60fps/30fps, 1280*720P 60fps/30fps, 720*480P 60fps/30fps images.
4. ★ Intelligent framing: The camera supports intelligent framing, automatically adjusts the composition according to the number of people and seats in the conference room to form the best conference viewing angle.
5. ★ Adjustable camera: The pitch angle can be adjusted from 0 to 17°, and the camera shooting angle can be adjusted according to the installation height to meet the needs of different scenes.
6. ★ Working indicator light: The indicator light is on when working, and the indicator light is off when not working, effectively protecting user privacy.
7. The appearance color is consistent with the screen, and the wireless material is exposed. The camera and the smart tablet are integrated to ensure visual beauty.

V. Android conference function parameters
1.Pen wake-up: The Android whiteboard function can be automatically started by picking up the pen, without manual operation.
2.★The conference tablet supports dynamic wallpaper/static wallpaper switching and supports 4K resolution wallpaper image materials.
3. Boot screen customization: supports personalized customization of boot animation, LOGO, screen saver, and welcome page.
4.★The whole machine supports super task bar, including: opening application, task view, home page, settings, network status, five-finger menu demonstration, volume and brightness adjustment. The super task bar can be brought up by swiping up the bottom touch, and it can be automatically hidden when not operated; the foreground application runs in full screen, and supports opening another application through the super task bar for split screen display.
5.★Support split screen of file management, media player, WPS, QQ browser and whiteboard under Android system; pull the whiteboard sideways to enter split screen state without interrupting or blocking the original full screen application.
6.★When opening two or more split screen applications under Android system, it can support left and right split screen display at the same time, which is convenient for document comparison. When split screen display, it supports dragging the split screen boundary in the middle of the screen to change the split screen application window ratio, and at the same time change the application adaptive menu and content with the split screen ratio.
7. Undo and redo: Undo one operation, with no limit on the number of steps to undo; redo the last operation to be undone, with no limit on the number of steps to redo.
8.Intelligent graphic recognition: The whiteboard software supports graphic recognition, including: square, circle, ellipse, triangle, arrow, line segment, etc.
9.★Table drawing: Android supports intelligent chart drawing. By recognizing rectangular graphics, you can add table rows and columns by hand. The writing area in the table can be adaptively sized according to the writing content. The table content and table border can be selected and dragged at the same time; after forming a table object, you can directly click the button to add and delete rows or columns.
10.★Android whiteboard supports soft pen writing/hard pen writing, supports fluorescent pen effect and handwriting copy and paste function; the writing pen supports one-click selection of three common colors of white/red/yellow, supports custom brush color, and supports memory of 3 custom colors.
11. Meeting minutes can be saved in both picture and PDF file formats; at the same time, meeting minutes support re-editing.
12. Meeting minutes support one-click sending to external storage or email, and support sharing by scanning code.
13. Support sharing of local files and read external storage files through QR codes in a non-external network environment.
14.Personal network disk sharing: The whole machine supports sharing of meeting minutes and whole machine files through personal network disk.
15. One-click quick access to annotations in any channel, support for office files such as word, ppt, excel, txt, PDF, etc., and annotations and screenshots can be saved at any time; annotations can be saved to local or external storage.
16. Page preview: Android whiteboard supports page preview function, and supports exporting/saving/sharing all pages as a unified file.
17. Whiteboard gesture operation: Supports zooming, rotating, roaming, and erasing of whiteboard content and pictures; supports unlimited roaming, and can enlarge and reduce the entire whiteboard format by 30%~300%.
18. Support browsing, searching, previewing, classifying, sorting, cutting, copying, pasting and other operations on local and external storage files; open audio/video/picture files, support multiple loop playback modes: single-chip playback, list playback, single-chip loop, list loop; pictures support touch zoom/rotate/switch, and videos support touch fast forward/fast rewind/screen ratio adjustment.
19. Screenshot: Both systems support screenshots of specified areas or full screens on the screen, and support direct import into the whiteboard or local storage.
20. Mobile wireless screen transmission: Support two-way interaction between Android/iOS mobile phones/PADs and conference tablets, mirror screen transmission, large screen transmission to small screen, remote control, return control, and file transfer.
21. The whole machine supports Miracast/Airplay protocol, and Android/Apple phones can wirelessly transmit screens to large screens without installing applications; support DLNA protocol, complete the functions of transmitting music, pictures, videos, etc. between mobile and large screens, and complete DMR/DMP functions.
22. Meeting gadgets: It adopts a floating menu design and supports arbitrary movement on the screen. The gadgets include timer/calculator/voter/welcome sign-in/calendar/screen recording/camera adjustment and other gadgets.
23.★Real-time subtitle translation: Remote meetings support real-time Chinese and English subtitle translation.
24.★Meeting minutes: In remote meetings, it supports recording and distinguishing the meeting content of multiple people, and generating meeting records, which can be viewed and sorted after the meeting.
25. Screen recording function: Provide free screen recording software to save the recorded content locally.
26. Camera adjustment function: Use the camera adjustment software to adjust the focus and direction of the camera before the video conference, control the smart framing function, and preview the current camera screen.
27. Voice assistant: Android and Windows support online far-field voice assistants at the same time, and support various functions such as whole machine settings, information questions and answers, and life services.
28. Whiteboard pen cap erasing: The whiteboard supports the hand-pen separation function. Turning on the pen writing switch can realize the whiteboard pen cap erasing function, and also supports finger gesture erasing.
29.★Photo function: supports instant photo taking, delayed photo taking (delay time is optional), voice photo taking, supports photo saving on the local machine and QR code sharing.
30. Conference sound effect mode: provides exclusive video conference sound effect mode to enhance the sound quality during audio and video conferences and improve the quality of video conferences.
VI. Windows software function (optional):
1. Windows conference manager: manages self-developed applications on the Windows side through a Windows control, and provides one-click return to Windows homepage and one-click task view.
2. Without any physical buttons, users can use five-finger gestures to call up the touch control menu on the screen in any signal source channel and any position on the screen to perform: signal source switching/volume adjustment/full channel annotation/computer switch/close current application/whole machine settings/Window and Andriod system switching/screenshot and other functions.
3. Intelligent graphic recognition: The whiteboard software supports graphic recognition, including: square, circle, ellipse, triangle, arrow, line segment, etc.
4. Intelligent table drawing: Windows supports intelligent chart drawing. By identifying rectangular graphics and adding table rows and columns by hand, the writing area in the table can be adaptively sized according to the writing content. The table content and table border can be selected and dragged at the same time; after forming a table object, you can directly click the button to add rows or columns. And the smart icon supports deleting rows in the table, and the table supports filling color.
5. Windows whiteboard supports soft pen writing/hard pen writing, supports fluorescent pen effects and handwriting copy and paste functions; the writing pen supports one-click selection of three common colors of white/red/yellow, supports custom brush colors, and supports memorizing 3 custom colors.
6. Whiteboard gesture operation: Supports scaling, rotating, roaming, and erasing of whiteboard content and pictures; supports unlimited roaming, and can enlarge and reduce the entire whiteboard format by 30%~300%.
7. Whiteboard sharing: Whiteboard files can be taken away via email, code scanning, and personal network disk.
8. App Store: By providing display methods such as classification, recommendation, and download ranking, users can conveniently browse, download, and install various applications on the conference tablet, and provide management of these applications.
9. Voice Assistant: Control the conference screen by voice. By speaking to the screen within a certain range, or by receiving the sound through a Bluetooth smart pen, you can easily start and close the whiteboard, start the application; realize content search and playback control; initiate video conferences; search for meeting minutes, voice call (realize voice switch, open software), simultaneous interpretation (convert meeting voice into editable text) and other functions.
10. Screen recording function: Provide free screen recording software to save the recorded content to Windows locally.
11. Camera adjustment function: Use the camera adjustment software to adjust the focal length and direction of the camera before the video conference, control the smart framing function, and preview the current camera screen.
12. Personal network disk function: Support WeChat applet to log in to personal network disk, and realize file transfer between mobile phone and large screen by scanning WeChat code.
13. Central control menu: You can use gestures to call up the central control menu to quickly return to the Android system, and support controlling the computer switch, closing Windows applications, etc. through the central control menu.
14. Whiteboard pen cap erase: The whiteboard supports the hand-pen separation function. Turning on the pen writing switch can realize the whiteboard pen cap erase function, and also supports finger gesture erase.
15. PPT annotation follow-up: Supports continuous multi-page annotation and erasure of PPT playback, and can add and modify the annotation content of the turned page. The annotation content and the original file can be separated locally, U disk, QR code, and email