Panasonic BT-4LH310 31" 4K Production Monitor

In stock


The Panasonic BT-4LH310 31" 4K Production Monitor is suitable for a variety of production environments both in studio and out in the field. It features a 10-bit, 31" LCD panel that is LED backlit, and has a DCI-spec 4K (4096 x 2160) native resolution. It will accept 4K sources through SDI, HDMI, and DisplayPort. In addition to DCI 4K, it will accept QFHD/UHD 4K (3840 x 2160), 2K, and high definition video sources along with up to 16 channels of embedded audio.

The monitor features four 3G-SDI inputs. When used with 4K signals, the image is split into quadrants and all four inputs will be combined into one 4K image. It features two HDMI inputs. Depending on the frame rate, bit-depth, and chroma sub-sampling one or both inputs may be required for 4K signals. And it features two DisplayPort inputs. As with HDMI, one or both inputs may be require, depending on the bandwidth of the 4K signal. For all other resolutions up to 2K only a single input per image is required. This means that in non-4K applications the four SDI inputs can be used to create a "quadview image", displaying all four images on screen at once.

For local audio monitoring there is a stereo headphone jack as well as a 0.5W mono speaker. The monitor can be controlled remotely using RS-485, RS-232C, or GPI and has a tally port that will trigger red, green, or amber LED tally lights above the display. The monitor includes a removable desktop stand, and also features a VESA 200 x 200mm hole pattern on the back so that it can be attached to many standard monitor mounts.

10-Bit LED Backlit Panel

4K Support
The monitor supports 4K through four SDI, two HDMI, and two DisplayPort inputs. For HDMI and DisplayPort 4K sources one or both inputs may be required, depending on the bandwidth; for SDI all four inputs will always be used. Supported frame rates, bit-depths, and chroma sub-sampling ratios include:

3840 x 2160 (UHD)
  • HDMI: Supports up to 60p at 8-bit, 4:4:4 when using two HDMI connections
  • DisplayPort: Supports up to 60p at 10-bit, 4:4:4 when using two connections
  • 3G-SDI: Supports up to 30p at 10-bit 4:4:4; 60p at 10-bit 4:2:2 - four connections always required

4096 x 2160 (DCI 4K)
  • HDMI: Supports up to 60p at 8-bit, 4:4:4 when using two connections
  • DisplayPort: Supports up to 60p at 10-bit, 4:4:4 when using two connections
  • 3G-SDI: Supports up to 60p at 10-bit 4:2:2; 24 or 25p at 12-bit 4:4:4 - four connections always required
In-Plane Switching Technology (IPS)
The LCD panel features in-plane switching, designed to provide greater off-axis viewing angles before significant loss of image quality is experienced when compared to non-IPS panels

Additional Features

  • Tally lamp
  • Speakers and headphone jack on front panel
  • Includes detachable stand
  • Key Lock function disables front panel controls, except for the power switch, menu operation and audio level adjustment
  • Functions can be assigned to five function keys for one-touch operation
  • Energy-saving Auto Power Down when there is no signal input or operation

Technical Specifications:

Panel Type10-bit, IPS
Screen Size31.1" / 789 mm effective diagonal size
Native Resolution4096 x 2160
Aspect Ratio17:9
Display ColorsApproximately 1,070,000,000
Viewing Angle178° horizontal and vertical - contrast > 10:1
Contrast Ratio1450:1
Inputs4 x SDI on BNC female - supports: SMPTE ST424/425-1/274/296HD-SDI with 8-channel, 48 kHz embedded audio3G-SDI with 16-channel, 48 kHz embedded audio 2 x HDMI - supports HDPC and embedded audio2 x DisplayPort - supports HDPC and embedded audio
Outputs4 x SDI on BNC female - active through-out of SDI inputs1 x Headphone on 3.5 mm stereo mini jack
Remote Control1 x GPI on 9-pin D-sub1 x RS-232C on 9-pin D-sub2 x RS-485 (in / out) on RJ-45
Speaker0.5 W, monaural
TallyRed, green, amber tally lights
VESA Hole Pattern200 x 200 mm
DimensionsWith Stand: 30 x 19.5 x 10.2" / 758 x 495 x 258 mmWithout Stand: 30 x 18.7 x 5.2" / 758 x 474 x 132 mm
WeightWith Stand: 44.1 lb / 20 kgWithout Stand: 40.8 lb / 18.5 kg
Packaging Info
Package Weight61.0 lb
Box Dimensions (LxWxH)37.0 x 27.3 x 17.0"