LG PK640S Series PK640S 50"

★★☆☆☆ 1.9 (3)

The integrated webOS signage platform and RS-232 controllability make this display a streamlined solution for commercial content management, distinct from consumer TVs. Its direct-lit LED panel and HDR10 Pro support provide functional picture quality for indoor corporate and hospitality environments. This display is best for IT administrators deploying simple, networked digital signage in conference rooms or hotel lobbies.

Screen 50"
Resolution 3840x2160
Panel LED
Refresh 60 Hz
HDR HDR10, HLG
smart platform webOS
hdmi version 2.0
LG PK640S Series PK640S 50" tv
36 Overall Score
Also available in:

Snapshot

Pros & Cons

Pros

Cons

  • Below average user sentiment (1st percentile)
  • Below average social proof (22nd percentile)
  • Below average smart (32nd percentile)

What owners think

How owner sentiment changed over time

Exclusive

Based on when customers actually wrote their reviews - so you can see whether early praise held up.

15/100Our AI sentiment readmedium confidence · 14 sources · Jun 2026
111Q1 '25Q2 '25Q3 '25
Happy (4-5★)Unhappy (1-2★)Bar height = number of reviews

Based on 3 dated customer reviews, grouped by calendar quarter. Period analysis is in English.

The proof

Performance

Performance Percentiles

HDR 64.2
Audio 38.1
Smart 32.3
Gaming 39
Display 64.9
User Sentiment 0.8
Connectivity 53.2
Social Proof 22.2
Picture Quality 36.5

Specifications

Full Specifications

Display

Size 50"
Resolution 4K
Panel Type LED
Backlight Direct LED
Aspect Ratio 16:9

Picture Quality

Brightness 300 nits
Peak Brightness 300
Contrast Ratio 5000:1

HDR

HDR Formats HDR10, HLG
Dolby Vision No
HDR10+ No
HLG Yes

Gaming

Refresh Rate 60 Hz
Response Time 9.5

Smart TV

Platform webOS

Audio

Speaker Config 2
Wattage 20
Dolby Atmos No

Connectivity

HDMI Ports 2
HDMI Version 2
USB Ports 1
Wi-Fi Wi-Fi 5
Bluetooth Yes
Ethernet Yes
Optical Audio Yes
VESA Mount 200x300

Power & Size

Power 102
Weight 8.6 kg / 19.0 lbs

vs Competition

Spec LG PK640S Series PK640S 50" Samsung Neo QLED QN75QN990FFXZA Sony BRAVIA 9 K85XR90 Hisense U8 Series 100U8QG TCL QM6K Series 55QM6K Roku Plus Series 65R6C7
Screen Size 50 75 85 99.5 55 65
Resolution 3840x2160 7680x4320 3840x2160 3840x2160 3840x2160 3840x2160
Panel Type LED QD-Mini-LED Mini-LED Mini-LED QLED Mini-LED
Refresh Rate 60 120 120 165 144 60
Hdr HDR10, HLG HDR10, HDR10+, HLG HDR 10, Hybrid Log-Gamma (HLG), Dolby Vision Dolby Vision, HDR 10+, HDR 10, Hybrid Log-Gamma (HLG) Dolby Vision, HDR10+, HDR10, HLG Dolby Vision, HDR 10+, Hybrid Log-Gamma (HLG)
Smart Platform webOS Tizen Google TV Google TV Google TV Roku TV
Dolby Vision false false true true true true
Dolby Atmos false true true true true true
Hdmi Version 2.0 2.1 2.1 2.1 2.1 2.1
Compare Compare Compare Compare Compare
Product HDRAudioSmartGamingDisplayUser SentimentConnectivitySocial ProofPicture Quality
LG PK640S Series PK640S 50" 64.238.132.33964.90.853.222.236.5
Samsung Neo QLED QN75QN990FFXZA Compare 85.699.585.288.999.665.599.999.984.5
Sony BRAVIA 9 K85XR90 Compare 77.497.191.880.394.865.593.182.479.2
Hisense U8 Series 100U8QG Compare 91.998.395.995.394.897.986.777.598.8
TCL QM6K Series 55QM6K Compare 98.988.697.693.877.379.189.588.398.8
Roku Plus Series 65R6C7 Compare 77.483.199.85984.679.189.594.636.5

Usage Scores

Overall (36.4)Budget (41.8)Gaming (39.5)Movies (34.1)Sports (42.9)Outdoor (30.7)Portable (36)Corporate (38)Streaming (41)Smart Home (37.5)

A full written review is coming soon. The specs, scores, prices and charts above are always up to date.

Other Configurations5

Similar Products