Model: E551
Replaced By E552
Contact us for pricing and availability. Availability is limited and is not guaranteed.
Tackle your digital signage projects with the advanced display technology and feature-rich affordability of the 55" NEC E551, a large-screen LCD display that turns heads with its sleek design and remarkable screen performance. Boasting an impressive 1920 x 1080 full HD resolution, 120 Hz refresh rate, built-in analog/digital tuner and a broad range of inputs and display controls, this display delivers stunning visual impact for environments such as corporate lobbies and boardrooms as well as digital signage applications in retail stores, waiting rooms and health clubs.
  • Comprehensive input panel connects you to the latest peripherals, including HDMI, Analog RGB, S-Video, Composite
  • Full 1080p high-definition resolution provides stunning detail
  • Built-in NTSC/ATSC analog/digital tuner allows for high-definition broadcast capabilities
  • Built-in, low-profile 10W speakers enhance the experience with superior sound
  • Built-in closed captioning enables hearing-imparied users to display text information in various supported languages based on the ATSC tuner program
  • Multiple picture modes adjust the picture appearance for an optimal viewing experience
  • Advanced video settings ensure source material is displayed properly and accurately
  • 120 Hz refresh rate reduces typical blur seen in fast-moving images and text

Legal Disclaimer To California Residents
WARNING: This product can expose you to chemicals including Styrene and Formaldehyde (gas), which are known to the State of California to cause cancer, and Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov


Panel Technology MVA Viewable Image Size 55 "
Aspect Ratio 16:9 Native Resolution 1920x1080
Pixel Pitch 0.63 mm Pixels Per Inch 40 @ native resolution
Backlight Type CCFL Brightness (typical) 450 cd/m2
Contrast Ratio (typical) 4000:1 Viewing Angle (typical) 178° Vert., 178° Hor. (89U/89D/89L/89R) @ CR>10
Response Time (Gray to Gray) 5.5 ms Refresh Rate 120Hz
Active Screen Area 47.6 x 26.8 in. / 1209.6 x 680.4mm Orientation Landscape
Displayable Colors More than 16.7 million  

Synchronization Range

Horizontal (Analog/Digital) 31.5-65.3 kHz  

Input Signal

Video Analog RGB 0.7 Vp-p/75 Ohms Sync Separate sync: TTL Level (Positive/Negative)
Composite sync: TTL Level (Positive/Negative)
Composite sync on green: (0.3Vp-p negative 0.7Vp-p positive)

Signal Compatibility/Connectivity

PC Signal Compatibility Yes Macintosh Signal Compatibility Yes
Video Analog RGB 0.7 Vp-p/75 Ohms Sync Separate sync: TTL Level (Positive/Negative)
Composite sync: TTL Level (Positive/Negative)
Composite sync on green: (0.3Vp-p negative 0.7Vp-p positive)
Input Terminals
VGA 15-pin D-sub, RCA Composite (2), RCA (Y, Cb/Pb, Cr/Pr) Component (2), S-Video (2)
HDMI (4)
RCA Audio (5), HDMI Audio, Audio Mini-Jack
Output Terminals
RCA Audio, Optical Digital Audio, Headphone Mini-Jack

Power Consumption (typical)

On 240W ECO Mode Standby <1W

Physical Specifications

Dimensions (WxHxD)
With stand:
51.5 x 34.8 x 12.2 in. / 1308.1 x 934.7 x 309.9mm
Without stand:
51.5 x 32.9 x 4.4 in. / 1308.1 x 886.2 x 112.8 mm
57.9 x 41.4 x 11 in. / 1470 x 1051 x 280mm
Net Weight (with stand):
79.1 lbs. / 35.9 kg
Net Weight (without stand):
68.9 lbs. / 31.2 kg.
99.2 lbs. / 45 kg
VESA Hole Configuration 600 x 400mm (4-hole)  

Environmental Conditions

Operating Temperature 32-104°F / 0-40°C Operating Humidity 10-85%
Operating Altitude 9843 ft. / 3000m Storage Temperature 14-122°F / -10-50°C
Storage Humidity 5-85% Storage Altitude 40,000 ft. / 12,192m

Limited Warranty (parts & labor)

2 years  

Additional Features

  • 120 Hz motion
  • 10-bit high color
  • CONEQ sound
  • Perfect volume
  • Built-in NTSC/ATSC (8-VSP, Clear QAM) analog/digital tuner
  • TileComp
  • Plug and Play (DDC/CI, DDC2B)
  • Scheduler (w/ real-time clock)
  • Sharpness/softness adjustment
  • Built-in closed captioning
  • Variable picture modes
  • Backlight adjust
  • Aspect ratio control
  • Parental control


  • External Single Board Computer (TNETPC-ION)
  • Wall Mount Kit (WMK-E551)
  • Accessory pack for Wall Mount Kit (MIS513)

120 Hz Refresh Rate
Reduces blur typically seen in fast-moving content to produce a more lifelike image.
Built-In Closed Captioning
Enables decoding and display of text information from a video.
Backlight Adjustment
Backlight layer (or lamps) determines the brightness of the display but is also a key heat component.
Variable Picture Modes
Adjusts the picture appearance for an optimal viewing experience.
V-Chip Function
Also known as parental control, allows users to block programs based on rating category.

Cost-Conscious 46" and 55" Displays Allure Onlookers with 120Hz Refresh Rate

Large Screen Display Misc

MultiPresenter Stick

  • Power cord
  • VGA cable (Mini 15-pin D-sub)
  • Wireless remote control
  • Batteries
  • CD-ROM (user manual)
  • Stand
  • Thumbscrews

Have a problem with your Sharp or NEC Monitor? Here you'll find common troubleshooting techniques. If you do not find a sufficient answer, please do not hesitate to contact us at 800.632.4662 for Desktop Monitors, Large Screen Displays, LED Walls and Medical Diagnostic Displays. Please contact 800.836.0655 for Multimedia Projectors and Whiteboards, or 866.632.6431 for Digital Cinema Projectors.

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