Lilliput BM281-4KS 28 inch carry on 4K Broadcast director monitor User Guide
Lilliput BM281-4KS is a 28-inch carry-on 4K Broadcast director monitor designed for professionals. It features multiple signal inputs including 3G-SDI, HDMI, DVI, and VGA for versatile connectivity. The monitor boasts a 4K resolution (3840x2160) for stunning clarity and detail. It supports quad view split, HDR function, 3D LUT for accurate color reproduction, and a built-in speaker. The compact size and robust design make it perfect for on-location productions.
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User Guide IMPORTANT SAFETY INSTRUCTIONS The device has been tested for conformance to safety regulations and requirements, and has been certified for international use. However, like all electronic equipment, the device should be used with care. Please read and follow the safety instructions to protect yourself from possible injury and to minimize the risk of damage to the unit. Please do not place the display screen towards the ground to avoid scratching the LCD surface. Please avoid heavy impact. Please do not use chemical solutions to clean this product. Simply wipe with a clean soft cloth to maintain the brightness of the surface. Please do not block any vent hole. Please follow the instructions and trouble-shooting to adjust the product. Internal adjustments or repairs must be performed by a qualified technician. Please keep user guide for future reference. Please unplug the power and remove the battery if long-term no-use, or thunder weather. FEATURES Support multiple signal inputs 3G-SDI, HDMI, DVI and VGA. Multiple View Display supports quad view split from different input singles simultaneously. Ultra HD 4K screens containing 8.3 million pixel (3840×2160), so the resolution is four times that of Full HD. 3D LUT for Accurate Color Reproduction and Color space display (Native/Rec.709/User1~User3). Support to upload 3D LUT table via USB port. Equip HDR function. Image flip offers great convenience for user’s user to place the monitor with various mounting methods under different conditions. Users can view the monitor normally no matter what mounting angles. Perfect size for both suitcase and rack mount. Wireless HDMI function for optional. YP-01191008 1 Contents 1. PRODUCT DESCRIPTION................................................................................... 3 2. SUN SHADE INSTALLATION...............................................................................6 3. MENU SETTING..................................................................................................... 7 4. ACCESSORIES..................................................................................................20 5. PARAMETERS................................................................................................... 21 6. TROUBLE SHOOTING..................................................................................... 22 2 1. PRODUCT DESCRIPTION Front 1. Speaker 2. SDI Signal switch to SDI mode when light on. 3. HDMI 1 ~ 4 Signal switch to HDMI mode when light on. 4. DVI Signal switch to DVI mode when light on. 5. VGA Signal switch to VGA mode when light on. 6. MENU Press to enter menu. Press to enter option in the menu. 7. ◄ Select option in the menu. Decrease the option value. Before enter the menu, single press to activate volume, press again to decrease the volume. 3 8. ► Select option in the menu. Increase the option value. Before enter the menu, single press to activate volume, press again to increase the volume. 9. EXIT Back or exit. 10. F1~F4 User definable buttons Default function options: F1:Color Space F2:Display Mode F3:Safety Marker F4:Aspect (functions can be customized by long keep pressing any one of the 4 buttons) 11.Power indicating light (green light: working). 12.Earphone jack 4 Back 1. Handle (Only available for 23.8”/28”) 2. VESA 75×75 & VESA 100×100 mounting port 3. USB port 4. TALLY port 5. VGA input port 6. DVI input port 7. HDMI input port×4。 HDMI 1 & HDMI 2 : HDMI2.0, support 4K 60Hz HDMI 3 & HDMI 4: HDMI1.4, support to 4K 30Hz NOTE: HDR is only available under HDMI 1 signal input. 8. Audio L/R 9. SDI input/output ports 10. DC IN (XLR) terminal Connects the DC power supply to the monitor. Pin number ① ②③ ④ 11. Power switch Signal GND ……... +15V "II" is battery power, "o" is power off, "I" is DC power. 5 2. SUN SHADE INSTALLATION 1. Put the sun shade on the suitcase, and match the magnets on both sides. 2. As shown below after finished. 6 3. MENU SETTING Please check whether the device is connected well or not. 3-1. F1~F4 user definable shortcut buttons Long keep pressing any one of the 4 buttons for 3-5 seconds to activate shortcut menu setting. Option selected will be highlighted as white. option will be highlighted as yellow, unavailable option will be highlighted as gray. Select option via "◄/►" buttons. Then press "MENU" button to confirm to set as default option. Shortcut functions can be customized to meet user’s needs as following: NO. Shortcut Menu when long press any F shortcut button 1 Center Marker 2 Safety Marker 3 Aspect Marker 4 Aspect 5 Underscan 6 Check Field 7 Freeze 8 Pixel to Pixel 9 Peaking 10 False Color 11 Exposure (Only available under SDI mode) 12 Histogram(Only available under SDI mode) 13 Time Code (Only available under SDI mode) 14 Display Mode 15 Disp Mirror 16 Color Space 7 Default options: F1:Color Space F2:Display Mode F3:Safety Marker F4:Aspect 3-2. ◄ / ► Buttons Operation Under non menu screen, press "◄/►" buttons to activate volume bar, Use "◄ / ►" buttons to select the desired option. Press the "MENU" button to select Volume, Brightness, Contrast, Saturation, Hue, Sharpness. 3-3. MENU Operation When power on, press "MENU" on the device, the menu of function setting will display on the screen. Press "◄ / ►" button to choose menu; Then press "MENU" button to confirm; Press "EXIT" button to return / exit menu. 3-3-1. Picture Picture Brightness 0~100 Contrast 0~100 Saturation 0~100 Hue 0~100 Sharpness 0~4 Color Space Native/Rec.709/User1~User3 HDR Off/Auto/HDR10 Backlight Mode Standard/Outdoor/User Backlight 0~100 Temperature 9300/7500/6500/5800/User Red Gain 0~256 Green Gain 8 0~256 Blue Gain 0~256 Note: Available only under “User” mode. Brightness Adjust the general brightness of the LCD. For example, if it uses outside in bright conditions, increase the LCD brightness to make it easier to view. Contrast Increase or decrease the range between the bright and dark areas of the image. High contrast can reveal detail and depth in the image, and low contrast can make the image appear soft and flat. Saturation Adjust the color intensity. color intensity. Press "◄/►" buttons to increase or decrease the Hue It means tint. Use this setting to choose the tint from 0 to 100. Sharpness Increase or decrease the sharpness of the image. When the sharpness of image is insufficient, the value of sharpness can be increased to make the image clearer. Color Space Selects the color space from among [Native], [Rec.709] [User1~User3]: Saturation/Hue/Color Temperature is only available under Native mode. Select [AUTO] or [HDR10] mode under HDR function, the color space will be saved as Native mode automatically. It can be only changed to other color space mode by hand. It supports to upload user-defined Lut table "User1~User3". - User-defined Lut table only support RGB format. If the format is not correct, please transform it to the correct format by using tool "Lut Converter" (See appendix 1 for details) and named as User1.cube, User2.cube or User3.cube. - Copy the User-defined Lut table to flash disk and insert it to the device, the screen displays a prompt message to show whether to upgrade. Select upgrade, the device will be loading automatically in a black screen and then restart after finishing loading. Requirements for flash disk Format: FAT32 Memory: <16G File directory: root directory Must be formatting before using it - Please note that the responding time for loading user-defined Lut table will be a bit slower. Please wait patiently. The device only supports loading one table at a time. If needs to load more than one tables, please load them one by one. 9 HDR Select HDR from among [Off], [Auto], [HDR10]. HDR is only available under HDMI 1 signal input. HDR under AUTO or DHR10 mode, and the input signal support HDR, the below function is disabled: Contrast, Brightness, Saturation, Hue, Sharpness, Color Space, BackLight Color Temperature [Auto] Automatically recognize whether the input HDMI signal supports HDR. If it supports, the input signal shows as the HDR10 performance. If it doesn’t, HDR function is disabled. It’s suggested select [Auto] when use HDR function. [HDR10] Do not recognize whether the input HDMI signal supports HDR, it will activate the HDR function enforcedly when input signal. If the input signal does not support the HDR function, the image displays abnormal color. Backlight Mode Select Backlight Mode from among [Standard], [Outdoor], [User]. Backlight It is only available under [User] mode. Temperature Adjust the color temperature to make the image warmer (Yellow) or colder (Blue). Increase the value to make the image be warmer, decrease the value to make the image be colder. User can use this function to strengthen, weaken or balance the image color according requirements. The standard white light color temperature is 6500K. Note: Only available under "User" mode to adjust Color Gain. 10 3-3-2.Function Center Marker Select On, it will appear "+" marker on center of screen. Function Center Marker Safety Marker Aspect Marker Aspect Underscan Pixel To Pixel Check Filed Freeze Peaking Peaking color Peaking level False Color Exposure Exposure level Histogram Time Code ON, OFF OFF, 95%, 93%, 90%, 88%, 85%, 80% OFF, Full, 17:9, 16:9, 4:3, 1.85:1, 2.35:1 Full ,17:9, 16:9, 4:3, 1.85:1, 2.35:1 ON, OFF ON, OFF OFF, Red, Green, Blue ON, OFF ON, OFF Red/Green/Blue/White Only available when under SDI 0~100 Mode. OFF/ON OFF/ON Only available when under SDI 0~100 Mode. OFF/ON OFF/LTC/VITC Safety Marker Use this setting to set off the safety marker or choose the one of the safety markers: [OFF], [95%], [93%], [90%], [88%], [85%], [80%]. Aspect Marker Display the different aspect of the displayed image. [OFF], [Full], [17:9], [16:9], [4:3], [1.85:1], [2.35:1]. Aspect Switch aspect ratio setting among from [Full][17:9][16:9][4:3][1.85:1][2.35:1]. For example: In [Full] mode, images are scaled to fill the entire screen. 11 In [4:3] mode, images are scaled up or down to fill the maximum 4:3 portion of the screen. In [16:9] mode, images are scaled to fill the entire screen if the device aspect is 16:9. Underscan If the image shows size error, use this setting to zoom in/out pictures automatically when receiving HDMI signals Pixel to Pixel The pixel to pixel is a monitor set to 1:1 pixel mapping with native fixed pixels, which avoids loss of sharpness due to scaling artifacts and normally avoids incorrect aspect ratio due to stretching. Check Field Use the check field modes for monitor calibration or to analyze individual color components of an image. The device preset in Blue, Green, and Red check field modes, only the selected color will be shown. Peaking The peaking is used to aid the camera operator in obtaining the sharpest possible picture. Select "On" to display colored outlines around sharp areas of the image. NOTE: Peaking color and level only can be changed when under SDI mode. False Color This monitor has a false color filter to aid in the setting of camera exposure. As the camera Iris is adjusted, elements of the image will change color based on the luminance or brightness values. This enables proper exposure to be achieved without the use of costly, complicated external equipment. 12 We have included a chart in this section that shows how the colors correspond to specific tonal values. Exposure & Exposure Level The exposure feature helps the user achieve optimum exposure by displaying diagonal lines over areas of the image that exceed the setting exposure level. The exposure level can be set to 0~100. Note: Only available when under SDI mode. 13 Histogram The histogram makes users view visually the exposure of whole and each RGM channels. It has the full contrast rang of video for easy color correction during post production. NOTE: Only available when under SDI mode. Time Code The Time Code supports Longitudinal time code (LTC) and Vertical interval time code (VITC). The time code display on the monitor is synchronizing with that of Full HD camcorder’s. It displays the duration of the clips in hours: minutes: seconds: frames. It’s very useful for identifying specific frame in film and video production. Note: Only available when under SDI mode. 3-3-3. Display Mode 14 Display Mode 1P,2P LR,2P TB,2P PIP,4P Display Mode The monitor presets 1P, 2P LR, 2P TB, 2P PIP, 4P five display modes. This function can be work with Select Region function to meet user’s requirement. For example: In 1P mode, images are scaled to fill the entire screen. In 2P LR, display two different signals on the left and right sides. 3-3-4. Display Setting Display Setting Display Rotate Display Mirror 0°, 90°, 180°, 270° OFF, L/R, U/D Available when single display. Available when dual display on left and right. Display Rotate This setting support to flip the image to 0°, 90°, 180°, 270° modes. It is only available when single display. Display mirror This setting displays two different input signals to Light/Right or Up and Down, the user can choose it to view the images according to the requirement. It is only available when dual display on left and right. 15 3-3-5. Select Region Unavailable Display mode 1P Left Side/Right Side/Full Display mode 2P LR Select Region Top Side/Bottom Side/Full Display mode 2P TB Main/Sub/Full Display mode 2P PIP 1P In/1P Out/2P In/2P Out/3P Display mode 4P In/3P Out/4P In/4P Out/4P full Note: This Menu is enabled for audio source selection. It is only available when under multi-picture and picture-in-picture mode. Activate the corresponding EN source to select the needed audio and picture under Audio Source function. 3-3-6. Input Input Signal switch to region selected according to users’ needs. 16 3-3-7. Audio Audio Volume 0~100 Level Meter OFF/ON Audio Source Analog/Digital region 1~4 NOTE: Only available when under SDI mode Digital region 2~4 is only available under multi-displays mode and must activate the corresponding Region under Select Region function at the same time. 3-3-8. VGA Auto Adjust VGA H Position 0~100 V Position 0~100 Clock Phase 0~100 17 3-3-9. System System Reset Menu Time OSD H Position OSD V Position Language Transparency Color Calibration Press to confirm after selected. 10~60s 0~100 (To set menu display area) 0~100 (To set menu display area) English, Chinese 0~255 (To set menu transparency) Off/On Rotate 0°, 90°, 270° Border Width Border Color 0~10 R, G, B, W Reset If there is any problem unknown, press to confirm after selecting. The monitor will return to default set. Menu Time Adjust the OSD displaying time form 10 to 60s. OSD H Position and OSD V Position Move OSD horizontally or vertically. Language Switch between English and Chinese. Transparency Set Menu transparency. Increase the value, the more transparent it will be. OSD Rotate Flip OSD to three modes. Border Width and Border Color User can choose the border color among Red, Green, Blue, White. And adjust the thickness by using Border Width function. This setting is available when display in 2P LR, 2P TB, 2P PIP, 4P mode. The lines separate the different input signals means Border. 18 3-3-10. Information Information To display the current information. 19 4. ACCESSORIES 1. Folding sun shade cover 2. TALLY connector (in bulk) 3. V-mount or Anton Bauer mounts Power cable 4. V-mount or Anton Bauer mount 5. Manual 6. Carry-on suitcase 7. 15V/4A DC adapter(12V 4.8A FOR 28”) 8. Battery plate bracket 9. Adapter fixing belt 10. Base bracket 11. Acrylic screen protector(Optional for 15.6” only) 12. WHDI Accessories (optional) 20 1 piece 1 piece 1 piece 1piece 1 copy 1 piece 1 piece 1 piece 2 pieces 1 pair 1 piece 1pair 5. PARAMETERS Display Screen 15.6” 8bit IPS 23.8” IPS 28” IPS Physical Resolution 3840×2160 3840×2160 3840×2160 Aspect Ratio 16:9 16:9 16:9 Brightness 330cd/㎡ 300cd/㎡ 300cd/㎡ Contrast 1000: 1 1000: 1 1000: 1 Viewing Angle 176°/ 176°(H/V) 178°/ 178°(H/V) 178°/ 178°(H/V) DC12~24V DC 12~24V DC12~24V (XLR) (XLR) (XLR) Input Voltage Input Signal 3G-SDI, HDMI 3G-SDI, HDMI DVI, VGA, Audio, DVI, VGA, Audio, USB and TALLY USB and TALLY 3G-SDI, HDMI DVI, VGA, Audio, USB and TALLY Output Signal 3G-SDI 3G-SDI 3G-SDI Power Consumption ≤18W ≤41W ≤51W Operating Temperature 0℃~60℃ 0℃~60℃ 0℃~60℃ Storage Temperature -20℃~60℃ -20℃~60℃ -20℃~60℃ 389×267×38mm 579×376.5×45 mm 663×425×43.8mm 3.2kg / 12 kg 8.6kg / 17.1kg 9 kg / 21 kg (with case) (with case) (with case) Dimension (LWD) Weight 21 6. TROUBLE SHOOTING 1. Only black-and-white display. Check whether the color saturation is properly setup or not. 2. Power on but no pictures. Check whether the cables of HDMI, VGA,DVI and 3G-SDI are correctly connected or not. Please use the standard power adapter coming with the product package. Improper power input may cause damage. 3. Wrong or abnormal colors. Check whether the cables are correctly and properly connected or not. Broken or loose pins of the cables may cause a bad connection. 4. When on the picture shows size error. Press “MENU → Function → Underscan” to zoom in/out pictures automatically when receiving HDMI signals 5. Other problems. Please press “MENU” button and choose “MENU → System → Reset → confirm”. 6. According to the ISP, the machine cannot function properly. ISP for program upgrades, non-professionals do not use. Please reboot your device if press accidentally! 7. No Sound. Press HDMI button if no sound; if still unavailable, please contact the technician. 8. No signal displayed when connecting with HDMI 1. Please long press HDMI 1 button for 3-5 seconds to activate HDMI signal. Note: Due to constant effort to improve products and product features, specifications may change without notice. 22 Appendix 1 3D LUT of Loading Manual This device supports 3DLUT to load the color calibration document and the User Log by using flash disk 1. Format Requirement: LUT format: Type: .cube 3D Size: 17x17x17 Data Order: RGB Table Order: RGB USB flash disk version USB: 2.0 System: FAT32 Size: <16G Color calibration document: Rec709.cube User Log: User1 ~User3.cube 2. LUT Format Conversion The format of LUT should be transformed if it doesn’t meet the requirement. It can be transformed by using Lut Converter (V1.3.30). 2-1. Activate Lut Converter One individual Product ID for one computer. Please send the ID number to seller to get an Enter Key. Then the computer gets the permission of Lut Converter after inputting the Enter Key. 2-2. Enter the Lut Converter interface after input the Enter Key 23 2-3. Click Input File, then select *LUT 2-4. Click Output File, and then select the file name as required format. Such as: Rec709.cube, 3D Size: 17, Data Order:RGB, Table Order:RGB. 24 Please note:The format which shown in Red Box above should be selected to RGB. 2-5. Click Generate Lut button to finish the transform. 3. USB Loading The USB flash disk must be formatted before using to make sure that there are no other files in the root directory. Please make sure the system of USB flash disk is: FAT32. Copy needed files to the root directory of the USB flash drive. Please note that the system only supports updating one LUT table at a time. Therefore, only a single file to be loaded can be copied to the USB flash drive. If it needs to update more LUT tables, please delete other files in USB flash disk and repeat the above steps. Power on the device, insert the corresponding video signal into any video signal interface, and switch the signal to the corresponding channel to make sure the device displays normally. (It doesn’t suggest that update the LUT table when there is no input signal as the device will enter the power saving mode in such situation.) Insert the flash disk into the USB interface on the device and wait for about 5 seconds. It will pop-up prompt box "Load Rec709.cube" after detecting the flash disk. Operate by using press "MENU", "<", ">", "EXIT" on the front of device. Click "YES" to load, and click "NO" or press "EXIT" to exit. The device displays a black screen after confirmed the loading, and it will update the corresponding LUT table back-stage according to the name of the updated LUT. The device will be restarted automatically after completed. The whole updating process takes about 6 seconds according to the updated LUT name. Please activate and set up the updated LUT table under the menu after restart. It doesn’t need to be reset if the current updated LUT has been selected before updating. Please note it only calibrates the color for Rec709 mode and upload it to the device in the factory. User1~User3 is grayed out and disabled in the menu. After loading the user LUT table, the corresponding button will be shown as blue and able to be use, shown as the 25 following figure. Before loading After loading 26 ">

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Key features
- 4K resolution (3840x2160)
- Multiple input signals
- Quad view split
- HDR function
- 3D LUT
- Built-in speaker
- Compact size
- Carry-on design
Frequently asked questions
The Lilliput BM281-4KS supports 3G-SDI, HDMI, DVI, and VGA signal inputs.
The Lilliput BM281-4KS has a 4K resolution of 3840x2160.
Yes, the Lilliput BM281-4KS has a built-in speaker.
The BM281-4KS monitor has dimensions of 663×425×43.8mm (LWD).