LEM-250A : 24.5” FHD 10-bit Reference OLED

TVLogic has introduced the world’s first AMOLED broadcast monitor in 2010. LEM-150, the 15inch HD resolution OLED monitor showed great possibility that the new display technology can contribute to the motion picture quality for professionals. Now TVLogic is back with its 2nd AM-OLED monitor, the LEM-250A. The LEM-250A is a 24.5” full HD resolution monitor utilizing the best OLED display and equipped with all the features of TVLogic’s XVM series reference monitors. Combined with the TVLogic’s outperforming video processing and color calibration techinology, LEM-250A gives highest picture quality and professional features that is required in the most colorcritical work environment.


Product Highlights
• 24.5” 1920x1080 Native HD Resolution
• State-of-the-art AM-OLED Technology
• 1:1 Pixel Mapping Modes for SD/HD
• Supports TVLogic Color Calibration Utility for proper
  color alignment
• Supports Multi-point Calibration for RGB and White
  uniformity correction
• Supports 3D LUT & Adjustable Gamma(1.0 to 3.0) and
  user-defined mode
• Supports 3rd party 3D LUT formats for import and
• Firmware update by using Ethernet or USB
• Timecode Display (VITC/LTC)
• Waveform/Vectorscope (Y/Cb/Cr, RGB Wide type, Line
  waveform and Range Error)
• Marker / User Aspect
• GPI (RJ45)
• Blue Only/Mono
• X3 Zoom(PBP)
• Key lock
• H/V Delay
• UMD (ANC, Manual, Dynamic & User)
• Closed Caption: CEA- 608/708 (SDI), Line 21, ANC, OP-42,

※ Note : 3D LUT Input/Output function will be supported in the upcoming Utility S/W scheduled to be released in July 2014.

3G-SDI Level A/B

Supports 3G-SDI Level A/B input.

Audio Level Meter Display

Displays the level of the embedded sound signal together with the video signal input through the terminal such as SDI or HDMI.
Audio Level Meter Display

Blue Only / Mono

Red and Green channels are not used and only Blue or Monochrome channel is used to display the screen. This function is used to adjust the color tones (tones and saturation) of the screen using the SMPTE Color Bar. For example, after displaying the Blue channel, adjust the Color (or Saturation) and Tint (or Hue) so that the original Magenta and Cyan are of the same brightness, and the original Gray and Blue are of the same brightness.
blue only

Closed caption

Closed caption.
Closed caption

H/V Delay

Allows you to check the Blanking area and synchronize signals by displaying the horizontal and vertical intervals in the center of the screen.
H/V Delay

Key Lock

Key Lock is a password-protection function of the OSD menu so that non-authorized users cannot change the setting of the monitor.
Key Lock

Luma(Y') Zone Check

Displays the Luma(Y’) level of the input image in colors. Each pixel’s Y’ analyzed and changed to a certain color or zebra pattern according to the Index on the right side of the screen.
Luma(Y') Zone CheckLuma(Y') Zone CheckLuma(Y') Zone Check


Displays various kinds of aspect ratios on the screen. Wide range of markers and security areas are available with line color and curtain transparency selection. A User Marker is available if any of standard markers fits your requirements.

PBP(Picture by Picture)

Support displaying multiple inputs on the screen at the same time.
PBP(Picture by Picture)PBP(Picture by Picture)PBP(Picture by Picture)

Range Error

Analyzes the input signal’s Luma (Y’) and chroma (C’) information. If the input signal exceeds the designated minimum and maximum values, the pixel will blink. This function allows for the user to easily identify any issues with exposure.
Range ErrorRange Error

Time Code Display

Displays the Timecode information on the screen.
Time Code Display


Displays user customized 8 characters or source ID or Tally signal of Ancillary (ANC) data on the screen.

User Aspect

Adjusts the Width /Height display ratio.
User AspectUser AspectUser Aspect

Various Scan Modes

Controls the size of the image. Overscan: Extra area around the four edges of the image that may not be seen reliably by the viewer. Underscan: Constrains the size of the image so the monitor shows everything the camera is seeing. 1:1 pixel: Displays the original image resolution without scaling to match a certain resolution or an aspect ratio.
Various Scan ModesVarious Scan ModesVarious Scan Modes

Waveform/Vector Scope

Waveform Y: Displays the Luma(Y’), Cb, Cr component of the input signal into waveform.
Vector Scope: Displays the color components ‘B-Y’ and ‘R-Y’of the input signals onto the X-Y axis.


Magnifies the input signal from 0% to 90%.
Display Spec

 Size  24.5"
 Resolution  1920 X 1080 (16 : 9)
 Pixel Pitch  0.283mm
 Color Depth  1.07B
 Viewing Angle  duv=0.008@30°
 Luminance  150cd/m2
 Contrast Ratio  1200:1 (min), 5000:1 (dark)
 Display Area  543.36(H) × 305.64(V) mm
 1 X BNC  Analog Input (Composite)
 3 X BNC  Analog Input (Component)
 2 X BNC  3G-SDI A/B Channel Input
 1 X HDMI  HDMI Input
 1 X DVI  DVI Input
 1 X BNC  Analog Output (Composite)
 3 X BNC  Analog Output (Component)
 2 X BNC  3G-SDI A/B Channel Output
Input Signal
 Analog  CVBS / S-Video / Component Video / RGB(D-TV)
 3G SDI  2.970Gbps
 HD SDI  1.485Gbps
 SD SDI  270Mbps
 HDMI  1080p (23.98/24/25/30/50/59.94/60)/1080i(50/59.94/ 60)/720p(50/60) 480i(60)/480p(60)/576i(50)/576p(50) 640x480/720x400/800x600/1024x768/1280x768/ 1280x1024/1366x768
 DVI Analog  640x480/720x400/800x600/1024x768/1280x768/ 1280x1024/1366x768
SDI Input Signal Formats
 SMPTE 425M-A/B  1080p (60/59.94/50/30/29.97/25/24/23.98/30sF/ 29.97sF/25sF/24sF/23.98sF) / 1080i (60/59.94/50)
 SMPTE 372  Dual HD-SDI YCbCr(4:2:2) 1080p (60/59.94/50) Dual HD-SDI YCbCr/RGB(4:4:4) 1080i (60/59.94/50) 1080p (30/29.97/25/24/ 24sF/23.98/23.98sF)
 SMPTE 296  720p (60/59.94/50)
 SMPTE 274  1080i (60 / 59.94 / 50) 1080p (30/29.97/25/24/24sF/23.98/23.98sF)
 SMPTE 260  1035i (60/59.94)
 SMPTE 125  480i (59.94)
 ITU-R BT.656  576i (50)
 2K Format  2048 x 1080p (24/24sF/23.98/23.98sF)
 Audio In  Embedded Audio/Analog Stereo (Phone Jack)
 Audio Out  Analog Stereo (Phone Jack), Internal Speaker(Mono)
FPGA Functions
 1:1 Pixel Mapping Modes for SD/HD,  3G-SDI Level A/B,  Audio Level Meter Display,  Blue Only,  H/V Delay,  Key Lock,  Luma(Y') Zone Check,  Marker,  Mono,  Range Error,  Time Code Display,  UMD,  User Aspect,  Various Scan Modes,  Waveform/Vector,  X3 Zoom(PBP)
Closed Caption
 CC-608 ANC,  CC-608 LINE 21,  CC-708,  OP42,  OP47
 TVLogic Color Calibration Utility, 3D LUT & Adjustable Gamma, 3rd Party 3D LUT Import, Uniformity Correction
Other Functions
 Reference Sync input   EXT_Sync in
 REMOTE   TVLogic’s specification
 USB   AUTO Calibration   Firmware update by USB memory stick
 Ethernet   Ethernet Control support
  Carrying Case,  External Acrylic Filter,  Gold Mount,  Rack Mount Kit(Single),  V-Mount

- Main Body : 578 x 392 x 98.6 (mm) / 22.76 x 15.43 x 3.88 (inch)
- With stand : 611.6 x 419.8 x 150 (mm) / 24.1 x 16.5 x 5.9 (inch)
- Weight : 11.8Kg / 26.01lbs

[Release Notes]
Date : 17. 02.08
[LEM-250A [MCU Firmware Update : V2.07 -> V2.08]
1. Color Temperature IC Chip has been changed from atmel to microchip.

Date : 16. 11.15
[LEM-250A [FPGA C : V01 / MCU Firmware Update : V2.06 -> V2.07]
1. AUTO Mode/Fuction that can detect Psf automatically is added.
- AUTO Mode/Fuction is added to Force Psf in the OSD menu.
- Default : AUTO
2. The "No signal" statement will no longer appear when the monitor is turned on or video signal is changed.

Date : 16. 05.02
[LEM-250A [FPGA C : V01 / MCU Firmware Update : V2.04 -> V2.05]
1. Revised firmware due to changing Mainbaord for LEM-250A(MB002) (2015.11).
2. Updated AM1808, FPGA, and MCU due to changing Xilinx FPGA Deserialize.
3. Debugged screen noise when switching a signal as Deserialize changed.

* If your LEM-250A on OSD is MCU 2.04 ver, you must do as followings: OSD메뉴에서 MCU Version이 2.04 이하일 경우 다음과 같은 절차를 거쳐야함.
1. Upgrade the LEM-250A by using [LEM-170_250A_Pre_Upgrade.img] file first.
2. Then, upgrade the LEM-250A by using [LEM-170_250A_G001_F030301_C205_A1_14(new firmware).

* Caution
Attached [LEM-170_250A_G001_F030301_C205_A1_14] is not the latest firmware.
It was updated in November, 2015.

Date : 16. 02.24
[LEM-250A [MCU Firmware Update : V2.05 -> V2.06]
1. Added [Ext. Sync Position H, V] feature.

Date : 15. 08.21
[LEM-250A [MCU Firmware Update : V2.03 -> V2.04]
1. Added Capture Mode.
2. Debugged connection error when re-connecting DVI cable.
3. Debugged screen scroll problem when using Router or booting of a monitor.
4. Debugged Deinterlace problem in Uncer Scan Mode.
5. Debugged pop-up noise when changing Audio Volume 0 to 1.

Date : 15. 02.26
[LEM-250A [MCU Firmware Update : V2.02 -> V2.03] [AM1808 Update : 1313 -> 1314][FPGA B 02 -> 03]
1. Debugged to connect i1 Display Pro Probe.
2. Debugged USB copy problem when using Calibration log copy feature.
3. Debugged i1 Display Pro Probe Measurement function.
4. Debugged Switching delay (Interlace signal)

Date : 14. 10.08
[LEM-250A [MCU Firmware Update : V2.00 -> V2.01] [AM1808 Update : 1312 -> 1313][FPGA A 01 -> 02, FPGA B 01 -> 02]
1. Debugged output of an audio as in 3G Level B.
2. Debugged Audio Mute when changing signals.

Date : 14. 08.13
[LEM-250A [MCU Firmware Update : V2.00 -> V2.01] [AM1808 Update : 1312 -> 1313][FPGA A 01 -> 02, FPGA B 01 -> 02]
1. Improved Black when Flicker Mode Off feeding 50i.
* After upgrading MCU 2.01, you must calibrate the LEM-250A.
** When you calibrate the monitor, you must use our calibration software, Calibrator 1.6.8.R1 or the latest version.

Date : 14. 07.10
[LEM-250A [MCU Firmware Update : V1.01 -> V2.00] [AM1808 Update : 1312 -> 1313][FPGA A 01 -> 02, FPGA B 01 -> 02]
1. Improved Color quality
12bit Dithering : 3D LUT(12bit interpolation), 1D LUT(12bit depth)
1D LUT Bypass
2. Add Color copy on Observer.
3. Debugged Closed caption 608(L21).

Date : 14. 05.22
[LEM-250A [MCU Firmware Update : V1.0 -> V1.01] LEM-250A [AM1808 Update : 1311 -> 1312]
1. Change the name,Clear Motion into Flicker Mode on OSD.(Default is ON)
2. Activate LUT Conversion if turned Flicker Mode on
3. Add Jeti Specbos 1211 probe.