Home / Interactive Touch Displays / Sharp LM431 43" 4K Infrared Touch Display

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Sharp LM431 43" 4K Infrared Touch Display

Name: Sharp LM431 43" 4K Infrared Touch Display
Brand: Sharp
SKU: 60006140
Price: 1322.70 GBP
Availability: InStock

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3-year manufacturer warranty

Installation services available

£1,322.70inc. VAT

£1,102.25 ex. VAT

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Bought in the UK, backed in the UKWhy it matters →

In UK stock, ships from the UK
UK manufacturer warranty
UK-based engineers
No import duty or customs charges
GBP pricing, UK VAT invoices

Return within 14 days

3-year manufacturer warranty

Installation services available

Call 01342 580255

Key specifications

Screen Size43 in

Resolution3840 x 2160

Resolution Standard4K UHD

Aspect Ratio16:9

Panel TypeVA with Direct LED backlight

Brightness500 cd/m2

Contrast Ratio4000:1

Touch TechnologyInfrared

All 31 specifications

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Description

The Sharp LM431 is a 43" member of Sharp's LM Series of interactive displays, built for small meeting spaces, huddle rooms and interactive signage. A VA panel with Direct LED backlighting delivers native 3840 x 2160 4K UHD resolution at 500 cd/m2 brightness and a 4000:1 contrast ratio, giving crisp, legible content even in bright rooms.

Also in this range:55" model Full specifications Compare alternatives

Infrared touch technology provides real 20-point multi-touch with +/-1mm accuracy, recognising finger, gloved and dual-tip stylus input for a natural pen-on-paper writing experience. An integrated Android 14 CTS-compliant System on Chip with octo-core ARM processor, 4GB RAM and 32GB storage runs a built-in whiteboard, overlay annotation mode and wireless screen sharing without any external PC.

Connectivity includes three HDMI inputs (one with ARC), an HDMI output, two USB-C ports (one delivering 65W power), three USB-A 3.0 ports, USB-B, LAN and RS-232C control, making the LM431 simple to install and operate in everyday collaboration spaces.

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Key features

20-point infrared touch

Real multi-touch with up to 20 simultaneous touch points and +/-1mm accuracy, supporting finger, glove and dual-tip stylus input for natural writing and drawing.

Integrated Android 14 PC

Built-in octo-core SoC with 4GB RAM and 32GB storage runs whiteboard, annotation overlay and wireless sharing apps with no external computer needed.

4K UHD clarity

3840 x 2160 native resolution at 500 cd/m2 brightness and 4000:1 contrast ratio for sharp, bright content in typical meeting rooms.

Single-cable USB-C

65W USB-C power delivery plus video and data lets a laptop connect and charge over one cable for fast, tidy meeting room setups.

3-year warranty

Backed by Sharp's 3-year warranty including the backlight, with optional extensions available.

Technical specifications

Choose a section to view its specifications.

Display (11)

Screen Size: 43 in
Resolution: 3840 x 2160
Resolution Standard: 4K UHD
Aspect Ratio: 16:9
Panel Type: VA with Direct LED backlight
Brightness: 500 cd/m2
Contrast Ratio: 4000:1
Touch Technology: Infrared
Touch Points: 20
Touch Accuracy: +/-1 mm
Touch Input Methods: Finger, glove, dual-tip stylus

Connectivity (7)

HDMI Inputs: 3 (1 with ARC)
HDMI Outputs: 1
USB-C Ports: 2 (1 with 65W PD)
USB-A Ports: 3 (USB 3.0)
USB-B Ports: 1
Network: LAN, RS-232C
Audio Output: 3.5mm jack

Power & Physical (6)

Power Consumption (Operating): 110 W
Power Consumption (Standby): <0.5 W
Dimensions (W x H x D, without stand): 994 x 582 x 73 mm
Weight: 21 kg
VESA Mount: 400 x 400 (M6)
Size Band: 32 - 49"

Certifications & Warranty (1)

Warranty: 3 years incl. backlight

General (6)

Operating System: Android 14 (CTS-compliant)
Processor: ARM octo-core, 2.3 GHz
Memory (RAM): 4 GB
Storage: 32 GB
Operating Temperature: +5 to +35 C
Operating Hours Rating: 18/7

Call 01342 580255

See the 43" on your wall, to scale

On a phone, point your camera at the wall and see the 43" there at its real size. On a computer, upload a photo of the wall (or scan the QR code to take one with your phone and it will appear here) and drag the display around it to scale.

Not sure 43" is the right size for the room? The screen size calculator shows how far a 43" display carries for presentations, touch work and video.

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Sharp LM431 43" 4K Infrared Touch Display × 1£1,322.70

Total£1,322.70

inc. VAT

Delivery & returns

Estimated delivery 10 Oct - 14 Oct. UK mainland delivery only. Some large or made-to-order items carry longer lead times, shown on the product page.

Unused items in original packaging can be returned within 14 days of delivery — see the returns policy for how business and consumer returns differ. Faulty items are covered under manufacturer warranty and by your statutory rights.

Full delivery & returns policy

Bought in the UK, backed in the UK

This item is in UK stock and ships to you from within the UK, so the order never crosses a customs border on its way to you.
The manufacturer warranty is honoured here in the UK. If something fails, you deal with us, not with an overseas seller in another time zone.
Our own UK-based engineers install, commission and support what we sell, and can attend site when a system needs hands on it.
Delivered within the UK mainland, so there is no import duty, customs charge or courier handling fee waiting for you on delivery.
Prices are in pounds sterling with proper UK VAT invoices, and purchase orders are accepted from approved education accounts: no currency conversion and no surprises at the door.

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