High-Quality Images, Advanced Functions,
Low Power Consumption
and Excellent Cost-Performance.
A 47 cm (18.5 inches) LCD Monitor for Diverse Broadcasting Needs.
The Panasonic BT-LH1850 LCD Monitor offers high-end performance and functions for broadcasting use.
With features like the 3D-LUT Color Correction, the high-quality image engine produces faithful color hues and
smooth gradation, together with quick-response motion images. It's also packed with convenient broadcasting
functions, like a waveform monitor for Y, R, G and B signals, SDI closed caption display, and a RS-485 serial remote.
The new panel with an LED backlight provides remarkably low power consumption and high cost-performance.
This versatile monitor meets a wide range of needs, from image production to broadcasting and business use.
Image Quality and Color Management Technologies
in the LH Series LCD Monitors for Broadcasting Use
3D-LUT Color Correction Keeps Colors Faithful Even at Low Luminance Level
The color space on LCD displays tends to narrow when the
luminance level drops, and it's often accompanied by color
phase shifts that cause colors to drift. 3D-LUT (Look Up Table)
Color Correction on the LH Series LCD monitors includes a
look up table for each luminance level, and applies 10 bit image processing to each RGB color to balance the six
coordinate poles of the three primary colors (RGB) and
their complementary colors (CMY). This solves the problem
of color drifting at low luminance levels, and keeps colors
In addition to enhancing low luminance areas, 3D-LUT Color
Correction helps to produce finely nuanced intermediate hues.
Based on color measurements in the intermediate color parts
of the image, this function applies smooth correction processing while balancing the six coordinates of the three
primary colors (RGB) and their complementary colors (CMY),
resulting in beautifully smooth gradation. It keeps the
intermediate shades of extremely fine colors vibrant and lifelike.
Faithful Color Correction from the 3D-LUT
By using a three-dimensional LUT (Look Up Table) for each RGB color and applying precise 10 bit image processing, faithful colors are reproduced from low to high luminance levels and natural intermediate colors are attained. (more information)
I/P Conversion Circuit for Motion Response
A circuit delay time (not including panel delay) of approximately
5 msec* is achieved by incorporating an I/P converter circuit that
converts SD and HD interlace signals with high precision to generate
progressive signals without causing field-length delay. Minimizing the
delay between the input signal and monitor output enables the user
to confirm footage without any incongruity.
* Differs slightly depending on the signal format.
Diagonal Line Compensation
Jagged noise on diagonal lines in moving images is a common problem. This LCD monitor solves this by detecting correlations in the diagonal direction, resulting in smooth, precise reproduction of moving images.
Broadcast Settings for Gradation and Color Temperature
Individual RGB corrections are made on every monitor that is
shipped, to ensure that rated gamma properties (g = 2.2) are
reproduced, and gradation suitable for broadcasting is achieved.
A color temperature of 9300 K/6500 K/5600 K, or 3000 K to 9300 K,
can be selected with the variable setting.
Panel Gamma Characteristics
WFM (Y/R/G/B) Display
The built-in waveform monitoring
function displays a waveform in a
sub-screen. The display signal can
be selected from Y, R, G and B.
All lines of the input signal via SDI are displayed as a vectorscope, and can be positioned in any of the four corners of the screen.
Various markers can be displayed in both 16:9 and 4:3 aspect ratios. • Aspect Marker (16:9): 4:3, 13:9, 14:9, CNSCO2.39, CNSCO2.35, 2:1 or VISTA, with background brightness control of Black (0%), Half (50%) or Normal (100%). • Safe Area Marker (16:9/4:3): 95%, 93%, 90%, 88%, 80% or VAR (variable setting). • Center Marker (16:9/4:3): ON/OFF. The center marker can be displayed together with another marker, as shown in the example right.
Safe Area and Center Marker
Cross Hatch Overlay
A simple cross hatch overlay can be displayed to check the tilt of the camera.
Cross Hatch ON
This function lets you display and
confirm video pixels without any
resizing. When displaying 1080i/p,
you can choose from five display
areas: center, right-top, rightbottom,
left-top or left-bottom.
Pixel-to-Pixel Display Image
(1080i, center mode)
Still Frame Display
A frame of video can easily be frozen
and displayed as a still image on the
left side of the screen. This function
can be used to match a live camera
with a frame of video shot at an
earlier time or with a different
Still / Video Monitor
Audio Level Meter
The color audio level meter displays
the input level of embedded audio
(SDI, HDMI*) or analog audio.* The
display mode can be selected from
2-channel, 4-channel, 8-channel or
OFF. It is also equipped with
reference point setting, peak hold
and over-range display functions.
Audio Level Meter
* For HDMI or analog audio input, the level meter
displays only two channels.
Time Code Display
With HD SDI input, this function
displays the value of the VITC, LTC
or UB time code.
Time Code Display
Closed Caption Display
The BT-LH1850 can display closed
captions with an SDI or VIDEO input.
It supports the EIA/CEA-708 HD SDI
closed captioning standard (EIA/
CEA-608 SD-SDI closed captioning
standard), and can display up to
eight windows simultaneously.
Closed Caption Display
HV Delay Display and Mono Mode
The HV Delay function that displays the video blanking period, and
the Mono mode that switches the display to black-and-white, can be
assigned to function keys for quick access.
RS-485 Serial Remote
Up to 32 monitors connected in
a loop-through configuration
can each be designated and
controlled by a distinct ID
number. TSL commands allow
text display (8 alphanumeric
characters) and tally indication.
The monitors also support
unique Panasonic commands
(equivalent to RS-232C).
TSL command display
The BT-LH1850 comes
installed with software that
allows it to be calibrated
without using a PC, by
simply connecting a
display color analyzer and
measurement probe to the
* Konica Minolta CA-310 Display Color Analyzer with CA-PU32/PU35 or CA-PSU32/
PSU35 Standard Measurement Probe. For more information about the Konica Minolta
calibration system, please see the following website [KONICA MINOLTA].
Cine-gamma and Black Mode
The BT-LH1850 is equipped with a cine-gamma (F-REC) compensation function and serves as a monitor for the Varicam
camera recorder. The black mode also makes dark image areas in
low-gradation scenes easier to see. It helps to produce movies as
well as film-like HD programs and commercials.
Each of the function keys on the front panel can be assigned a
function selected from various display and switchover functions to
enable one-touch display ON/OFF or mode change. These
function buttons speed up operation and customize the functions
to individual user needs.
SDI, HDMI and DVI-I Inputs
Two SDI inputs (SDI1/SDI2) with an automatic HD/SD switching
function are provided as standard equipment. They support
embedded audio, and the channel for audio output to speakers
and headphone can be selected.
The next-generation HD Link is featured to allow high-quality
digital connection of a wide range of digital HD products with an
HDMI terminal, such as BD/DVD players. Digital and analog DVI-I
(Single Link) input is also provided.
Low Power Consumption and Mercury-Free Design
Help Protect the Environment
A thorough energy-saving design has achieved low power
consumption of only 22 W (with DC input), which is a 54%
reduction from our previous model (the BT-LH1710 (2009 model) /
Power Consumption 48W (DC IN)). A mercury-free LED backlight is
also gentle to the environment.
• RS-485 (RJ-45), RS-232C (9-pin) and GPI (9-pin) remote input
• Tally lamp (red/green/amber).
• Key Lock function disables the front panel operation/control
functions, except for Power switch, menu operation and sound
• Monaural speakers and headphone jack on the front panel.
• Fanless drive and its quiet operation make this model ideal for
use in editing studios or MA rooms.
• Auto power down with no operation nor signal input for a certain
period of time.
• Tilt Stand is included as standard (detachable).