55" 4K UHD
3840 × 2160 resolution for detailed professional signage content.
Official Partner
LG 55PK640S 55" 4K Ultra HD Smart Commercial Signage TV
In Stock108 available
Express DeliveryFast UK delivery where eligible
3 Year WarrantyManufacturer-backed cover
UK Expert SupportPre-sales and technical advice
Product description
LG 55PK640S · 55" UHD TV Signage
LG 55PK640S 55" 4K UHD Smart Commercial Signage TV with webOS 25
The LG 55PK640S is a 55-inch professional 4K UHD commercial signage TV combining 3840 × 2160 resolution, webOS 25, integrated content management, Wi-Fi, Bluetooth and LG SuperSign compatibility.
Designed for retail, hospitality, corporate environments, meeting rooms, receptions and professional TV applications, the LG 55PK640S includes commercial functionality such as Content Manager, Group Manager, Fail Over, Play via URL, Time Scheduler, Beacon and Display Power Management.
Explore the wider LG Digital Signage collection or compare other 55-inch commercial displays available from ScreenMoove.
55" 4K UHD 3840 × 2160 resolution
webOS 25 Integrated smart signage platform
300 nit Max. 260 nit typical brightness
16/7 Operation 30,000-hour backlight life
Description
LG 55PK640S Professional TV
55-inch 4K UHD commercial TV signage for business environments.
The LG 55PK640S combines a 55-inch Direct LED display with native 3840 × 2160 4K UHD resolution, 300-nit maximum brightness and 260-nit typical brightness.
Unlike a standard consumer television, the PK640S provides commercial signage functionality including Vertical Setup, Fail Over, Play via URL, scheduling, NTP synchronisation, Beacon, Embedded Content Manager and Embedded Group Manager.
- LG 55PK640S professional TV signage
- 55-inch UHD commercial display
- 3840 × 2160 4K resolution
- Direct LED backlight
- 300 nit maximum brightness
- 260 nit typical brightness
- 1,200:1 typical static contrast
- 8ms typical response time
- 60Hz refresh rate
- webOS 25
- 30,000-hour backlight life
- Designed for 16 hours/day, 7 days/week
55PK640S specifications at a glance.
webOS 25
Integrated smart signage platform with K25Lp quad-core processing.
300 Nit Max.
300 nit maximum brightness with 260 nit typical output.
Embedded CMS
Built-in Content Manager and Group Manager functionality.
Wi-Fi & Bluetooth
Wireless content sharing, Soft AP and Bluetooth audio support.
16/7 Operation
30,000-hour backlight life based on 16 hours per day, seven days a week.
4K Ultra HD Picture Quality
Four times the resolution of Full HD.
The LG 55PK640S displays professional content at 3840 × 2160 4K UHD resolution, providing four times the pixel count of conventional 1920 × 1080 Full HD.
The 55-inch screen size gives businesses substantial visual impact while maintaining detailed imagery, text, menus, presentations and promotional graphics.
- 3840 × 2160 native resolution
- 4K UHD picture quality
- Direct LED backlight
- 60Hz refresh rate
- HDR10 Pro
- HLG support
Slim Commercial Design
Only 59.8mm deep without the stand.
The LG 55PK640S combines a 55-inch screen with a relatively slim commercial TV chassis, making it practical for professional wall mounting and stand-based installations.
Without the stand, the display measures 1226 × 711 × 59.8mm and weighs approximately 10.2kg.
- 59.8mm chassis depth
- 1226mm overall width
- 711mm height without stand
- 10.2kg without stand
- 200 × 300mm VESA mounting
LG webOS 25
Integrated smart commercial signage platform.
The LG 55PK640S runs webOS 25 using LG's K25Lp quad-core system-on-chip.
The platform combines an intuitive smart interface with commercial signage functionality, reducing the need for separate external hardware in many straightforward deployments.
- webOS 25
- K25Lp SoC
- Quad-core processing
- Smart Home launcher
- Quick Access
- Web browser
- YouTube application
- Software clock
LG SuperSign CMS
Professional content management for LG digital signage.
The LG 55PK640S supports LG SuperSign CMS and related professional LG digital signage management solutions.
Compatible SuperSign tools allow organisations to create, schedule, organise and distribute commercial content across supported LG displays.
- SuperSign CMS Premium compatibility
- SuperSign Control
- SuperSign Control Plus
- Simple Editor
- LG ConnectedCare compatibility
Embedded Content & Group Management
Manage signage content without a separate PC.
Embedded Content Manager and Group Manager functionality allows compatible signage content to be edited, played, scheduled and organised directly through the PK640S platform.
For straightforward deployments, businesses can use a remote control, mouse or compatible mobile device rather than relying on a dedicated management computer.
- Embedded Content Manager
- Embedded Group Manager
- Playlist management
- Time scheduling
- Remote-control operation
- Compatible mobile control
Beacon & Bluetooth Low Energy
Support compatible real-time promotional applications.
Beacon functionality and Bluetooth Low Energy can support compatible applications delivering location-based information, promotions and customer communications.
This can be particularly useful in suitable retail, hospitality and customer-facing commercial environments.
- Beacon support
- Bluetooth Low Energy
- Bluetooth audio playback
- Mobile connection overlay
Display Power Management
Commercial power-management functionality.
Display Power Management can be configured so the LG 55PK640S responds when an active television signal is detected.
Additional energy-management functions help businesses control screen operation in environments where continuous playback is not required.
- Display Power Management
- Auto Off
- Sleep Timer
- Energy Saving Mode
- Motion Eye Care
LG ConnectedCare
Optional remote monitoring for commercial displays.
LG ConnectedCare compatibility provides access to an optional cloud-based service for remote monitoring and management of supported commercial display installations.
Compatible deployments can use ConnectedCare to support remote status monitoring, fault diagnosis and management.
- Remote display monitoring
- Fault diagnosis support
- Remote management
- Commercial signage maintenance
55" Commercial Displays
Comparing the LG 55PK640S with other 55-inch commercial screens?
Browse the ScreenMoove 55-inch commercial displays collection to compare the LG 55PK640S with other professional digital signage and commercial television options.
Specifications
LG 55PK640S Technical Specification
LG 55PK640S specifications.
Technical specifications for the LG 55PK640S 55-inch 4K UHD Smart Commercial Signage TV with webOS 25.
| Specification | LG 55PK640S Details |
|---|---|
| General | |
| Model | LG 55PK640S |
| Category | UHD TV Signage / Professional TV |
| Tool Name | UA73 |
| Front Colour | Black |
| Stand Type | 2 Poles |
| Display | |
| Screen Size | 55" |
| Resolution | 3840 × 2160 - 4K UHD |
| Backlight Type | Direct |
| Brightness | 300 nits maximum / 260 nits typical |
| Dynamic Contrast Ratio | 1,000,000:1 |
| Static Panel Contrast | 1,200:1 typical |
| Response Time | 8ms typical GTG |
| Refresh Rate | 60Hz |
| Backlight Life | 30,000 hours - 16 hours/day, 7 days/week |
| Video | |
| SoC | K25Lp |
| SoC Marketing Name | Quad |
| HDR10 Pro | Yes |
| HLG | Yes |
| Audio | |
| Speaker System | 2.0 channel |
| Speaker Output | 10W + 10W |
| LG Sound Sync | Yes - Bluetooth or Optical |
| Smart Platform | |
| Operating Platform | webOS 25 |
| Smart Home | Launcher Bar |
| Quick Access | Yes |
| Web Browser | Yes |
| Preloaded Application | YouTube |
| SDP Server Compatibility | Yes |
| Software Clock | World Clock / Alarm |
| Mood Display | Yes |
| Soft AP | Yes |
| Wi-Fi | 802.11ac |
| Screen Share | Miracast |
| Smart Share | Yes |
| DIAL | Yes |
| Bluetooth Audio Playback | Yes |
| Mobile Connection Overlay | Yes |
| HDMI ARC | Yes - HDMI 2 |
| Corporate / Retail Signage | |
| Vertical Setup | Yes |
| Fail Over | Yes |
| Play via URL | Yes |
| Crestron Compatibility | Yes |
| Display Power Management | Yes |
| Time Scheduler | Yes |
| NTP Sync Timer | Yes |
| Beacon | Yes |
| Embedded Content Manager | Yes |
| Embedded Group Manager | Yes |
| LG Software Compatibility | |
| SuperSign Control | Yes |
| SuperSign Control Plus | Yes |
| SuperSign CMS Premium | Yes |
| Simple Editor | Yes |
| LG ConnectedCare | Compatible - optional service |
| Connectivity | |
| HDMI | HDMI 2.0 |
| USB | USB 2.0 |
| RF Input | Yes |
| RS-232C | 4-pin phone jack |
| Digital Audio Output | Optical |
| External Speaker Output | 3.5mm phone jack |
| RJ45 LAN | Yes |
| Additional Commercial Features | |
| USB Cloning | Yes |
| Wake on LAN | Yes |
| SNMP | Yes |
| Self Diagnostics | USB |
| SI Compatible Protocol | TV Link Tuner |
| HTNG-CEC | Yes |
| Simplink | HDMI-CEC 1.4 |
| Multi IR Code | Yes |
| Hotel Mode | Yes |
| Installer Menu | Yes |
| Lock Mode | Limited |
| Port Block | Yes |
| Welcome Screen | Splash Image |
| IP Channel Manager | Yes |
| Auto Off / Sleep Timer | Yes |
| Energy Saving Mode | Yes |
| Dimensions & Mounting | |
| VESA | 200 × 300mm |
| Dimensions With Stand | 1226 × 766 × 275mm |
| Weight With Stand | 10.4kg |
| Dimensions Without Stand | 1226 × 711 × 59.8mm |
| Weight Without Stand | 10.2kg |
| Shipping Dimensions | 1380 × 830 × 118mm |
| Shipping Weight | 13.7kg |
| On-Bezel Width L/R/U/B | 8.2 / 8.2 / 8.2 / 17.5mm |
| Off-Bezel Width L/R/U/B | 6.9 / 6.9 / 6.9 / 1.3mm |
| Power | |
| Power Supply | AC 100-240V, 50-60Hz |
| LG Published Power Consumption | 136W / 113W |
| Standby Consumption | Under 0.5W |
| Certification | |
| Safety | UL |
| EMC | FCC Class B |
| Other | ISTA6 |
| Accessories | |
| Remote Type | L-Con, AKB75095376 |
| Power Cable | 1.5m |
| RS-232C to Phone Jack Cable | Included |
Downloads
LG 55PK640S Downloads
55PK640S datasheet and related ScreenMoove resources.
LG PK640S Datasheet
Download the ScreenMoove-hosted LG PK640S technical datasheet.
View 55PK640S Specifications
View the complete LG 55PK640S technical specification table.
LG Digital Signage
Explore ScreenMoove's range of LG professional commercial displays.
55" Commercial Displays
Compare the LG 55PK640S with other professional 55-inch displays.
Commercial Applications
Where can the LG 55PK640S be used?
Retail Digital Signage
Use the 55-inch 4K screen for promotions, product information and customer-facing commercial content.
Hospitality
Display branded television, guest information, promotions and venue communications.
Corporate Environments
Use 4K resolution, Screen Share and webOS 25 for workplace presentations and communications.
Education
Suitable for presentations, information and digital communications in appropriate education environments.
LG Digital Signage
Compare other LG professional TV and digital signage solutions.
55" Commercial Displays
Compare alternative professional screens in the same 55-inch size.
LG PK640S Size Range
Compare alternative LG PK640S commercial TV sizes.
The LG PK640S professional TV signage range is available in multiple screen sizes, allowing businesses to select the right display for room size, viewing distance and installation requirements.
43" LG 43PK640S View size 50" LG 50PK640S View size
55" LG 55PK640S You are viewing this
65" LG 65PK640S View size 75" LG 75PK640S View size 86" LG 86PK640S View size
Frequently Asked Questions
LG 55PK640S FAQs.
What is the LG 55PK640S?
The LG 55PK640S is a 55-inch 4K UHD professional commercial signage TV with webOS 25, embedded content management and LG signage functionality.
What resolution does the LG 55PK640S have?
The display has a native 3840 × 2160 4K UHD resolution.
How bright is the LG 55PK640S?
The display provides 300 nits maximum brightness and 260 nits typical brightness.
What contrast ratio does the LG 55PK640S have?
The LG 55PK640S has a typical static panel contrast ratio of 1,200:1.
What refresh rate does the LG 55PK640S use?
The 55PK640S uses a 60Hz refresh rate.
Is the LG 55PK640S a 24/7 display?
No. It has a 30,000-hour backlight life based on 16 hours per day, seven days per week.
What operating platform does the LG 55PK640S use?
The display runs LG webOS 25 using a K25Lp quad-core SoC.
Does the LG 55PK640S have Wi-Fi?
Yes. It supports 802.11ac Wi-Fi, Miracast Screen Share and Soft AP functionality.
Does the LG 55PK640S support SuperSign?
Yes. It supports compatible LG software including SuperSign Control, SuperSign Control Plus and SuperSign CMS Premium.
Does the LG 55PK640S have built-in content management?
Yes. Embedded Content Manager and Group Manager are included.
Does the LG 55PK640S support Fail Over?
Yes. Fail Over is included among its professional signage features.
What VESA mount does the LG 55PK640S use?
The display uses a 200 × 300mm VESA mounting pattern.
How large is the LG 55PK640S?
Without its stand, the display measures 1226 × 711 × 59.8mm.
How much does the LG 55PK640S weigh?
The display weighs 10.2kg without its stand and approximately 10.4kg with the stand.
Where can I compare other 55-inch commercial displays?
Browse the ScreenMoove 55-inch commercial display collection to compare the LG 55PK640S with other professional screens.
Where can I compare other LG digital signage displays?
Browse the LG Digital Signage collection for more LG professional displays and commercial signage options.
LG 55" Smart Commercial TV Signage
Is the LG 55PK640S right for your project?
The LG 55PK640S combines a versatile 55-inch 4K UHD display, webOS 25, embedded Content and Group Management, Wi-Fi, Bluetooth, SuperSign compatibility, Fail Over and professional commercial television functionality.
Technical Highlights
- Display size / Screen sizes
- 55"
- Resolution
- Ultra HD (4K)
- Panel type
- N/A
- Screen type
- Flat
- Brightness
- 300 cd/m2
- Response time
- 8ms
- Screen ratio
- 16:9
- Refresh rate
- 60Hz
- Display orientation
- Landscape Only
- Operating hours
- 16/7
- Operating system
- WebOS
- Player features
- USB Plug and Play
- VESA patterns
- 200x300
- Warranty
- 3 Year Warranty
LG 55PK640S 55" 4K Ultra HD Smart Commercial Signage TVSKU: 55PK640S
£483.74
See Before You Decide
Book a Free Product Demonstration
Compare picture quality, touchscreen performance, software and connectivity with guidance from a commercial display specialist.
Remote or on-site
No obligation
Expert-led session
For Integrators and Resellers
Open a Screen Moove Trade Account
Access project pricing, volume discounts, product sourcing support and faster commercial quotations for your client projects.
Trade pricing
Project support
Volume discounts
Education & Public Sector
A simpler procurement route for schools and public organisations
Access education pricing, purchase-order support, installation services and account management for schools, academies, colleges, universities, NHS organisations, councils and government bodies.
Purchasing for a school, academy, university or NHS organisation?
Register your organisation to request institutional pricing and
purchase-order support.
Register Your Organisation
Trusted Store Status
Top Quality Store
Rating status, Exceptional, based on Google’s shopping experience metrics.
Why it matters
Demonstrates consistently strong fulfilment, service, and post-sale experience across Google signals.
Google
Top Quality Store
Built for confidence, next-day delivery options, UK-based support, trade-ready operations.
Request a quote
JO
Josh
Jan 6, 2026
Great products and service! The guys always go above and beyond to make sure they supply you with the product that best fits your needs. I’ve been using Screen Moove for a number of years now and woul...
See moreSD
Sandy Dobson
Nov 28, 2025
Verified
Screen Moove went above and beyond for my requirements. Ordering system was super easy it just take 2 minutes to complete my order and I have received my tracking details right away after few minutes...
See moreS
St Peter's Church
Dec 17, 2025
Moe Khan, one of the team at Screen Move has been a fantastic help as we have navigated the process of choosing and buying screens and stands for our church. Helpful at every step of the way, patient...
See moreFS
Furniture Store
Nov 27, 2025
We originally planned to purchase a cheap TV for our showrooms. After speaking with screen moove, we ended up investing in floorstanding displays across multiple retail sites and showrooms. The bright...
See moreFT
Felix Thomas
Sep 4, 2025
Verified
I placed my order late at night but realized I had entered the wrong address. I immediately sent an email asking for it to be changed, not really expecting a reply until the next day. To my surprise,...
See moreAS
ava singh
Aug 27, 2025
Verified
I’ve been looking ultra high brightness display despite I checked everywhere I didn’t trust. They got my trust and I ordered. It arrived safely next day we have installed screen is awesome and high qu...
See moreGK
Glenn Khan
Nov 27, 2025
Verified
This is second time I used Screen Moove, I have bought double sided 55 inch display. The first order was a bit delayed I don't blame it might be happen, but customer service over the phone was excell...
See moreBY
Burcu Yesilova
Feb 12, 2025
Screenmoove, perfect customer satisfaction from start to finish! Their customer service is incredibly helpful and fast. It’s amazing to be able to reach out and get quick solutions for any issue. We a...
See moreTE
Tina e Edwards
Dec 17, 2025
We found that we needed a video call to work out the set up. The tech team at screenmoove were very very good. I would suggest that the instructions that come with the screen offer two key info. 1. Set...
See moreMA
Miss Akthar
Nov 21, 2025
Verified
Great experience with Jonathan Gray, previously I was looking for other companies and randomly ordering our needs from elsewhere. after I met with him, since 2024 we are keep purchasing from screen m...
See moreGet in touch
Speak directly with Screen Moove about your display, digital signage, meeting-room or AV project.
Need help choosing the right product?
Speak directly with a dedicated Screen Moove expert and get the right solution first time.
Call us: 020 8191 9223
Email: info@screenmoove.com
Contact us
Simply complete our contact form, and we will promptly respond to your inquiries.
If you have any questions or enquiry, please fill out the form below with all of your details and we'll get back to you shortly.
Ready to start your next AV project?
Contact our team of experts today!
