Sharp LM431
For best-in-class touch performance and value, the Sharp LM series commands feature-rich professional capabilities for small meeting spaces and interactive signage applications. An integrated System on Chip (SoC) with Android 14 CTS-compliant Operating System offers the most up to date features and security for seamless out-of-the-box collaboration.
Boosting creativity in group collaboration, the Sharp LM series features intuitive Pen-on-Paper writing, a built-in whiteboard, annotation overlay mode and Windows Ink support. Using the on-board EShare app, content can be wirelessly shared from any personal device to the display without the need for apps or dongles. A single USB-C cable transmits data, video/audio output and power delivery between notebook and display for the simplest and seamless BYOD workflows.
With its 4-sided uniform slim bezel design, the Sharp LM series supports installations in both landscape and portrait as well as tilted desk. Dedicated features including hide side bars, application lock and a built-in web browser make the Sharp LM series the perfect display for budget-driven interactive signage applications.
Key features
- Best readability – high brightness panel ensures content is readable even in well-lit environments and anti-glare coating avoids distracting reflections.
- Pen-On-Paper user experience – Zero bonded glass and latest infrared touch technology enable highly accurate and responsive writing and drawing with up to 20 touch points.
- Out-of-the-box collaboration – the integrated Android PC features a powerful home screen launcher offering fast and flexible access to a range of pre-installed applications.
- Highly customizable – a variety of settings allow the display to be optimised to meet the needs of different applications, from small meeting and huddle rooms to touch signage and wayfinding.
- Safe & Secure – latest Android 14 SoC provides a secure operating system which, together with extra security features, meets the highest IT security standards.
Sharp LM431
For best-in-class touch performance and value, the Sharp LM series commands feature-rich professional capabilities for small meeting spaces and interactive signage applications.
| Technology | infrared |
| Diagonal Size (inches / cm) | 108 |
| Operating Humidity (min) [%] | 20 |
| Operating Humidity (max) [%] | 80 |
| Bezel Width (Left/Right) [mm] | 15 |
| Bezel Width (Upper) [mm] | 15 |
| Bezel Width (Lower) [mm] | 15 |
| HDMI | 3 |
| Landscape | Yes |
| Portrait | Yes |
| Horizontal | No |
| Mounting Screw Specification (Size/Max Length) | M6 |
| Kensington Lock | No |
| Panel Technology | VA with Direct LED backlights |
| Native Resolution (Pixels) | 3840 x 2160 |
| Screen Filter | AG |
| Backlight Technology | LED |
| Contrast Ratio | 4000:1 |
| Response Time (grey to grey avg) ms | 8 |
| Viewing Angle [°] | 178 |
| Colour Depth [bn] | 1073 (8bit + FRC) |
| 24/7 Operation Certified | No |
| Limited Manufacturer’s Warranty (yrs.) | 3 |
| Local Dimming | No |
| Built in Speakers (W) | 10 + 10 |
| Computer Input - Plug and Play | Yes |
| Power Management | Yes |
| Option Slot Interface | No |
| Equipment Space (Mounting) | No |
| Installation Handles | No |
| Fanless | No |
| Intelligent Fan | No |
| Temperature Sensor | Yes |
| Brightness Sensor | Yes |
| Residual Image Reduction Feature | No |
| IP Rating | No |
| Picture in Picture Mode | No |
| Picture by Picture Mode | No |
| Multi-Screen Function - Videowall Mode (Enlarge Feature) | No |
| Bezel Correction Feature | No |
| Reverse Image Feature | No |
| Multi Language OSD | No |
| Scheduler / Timer | Yes |
| Real Time Clock | No |
| Remote Management | Yes |
| Daisychain (Mirror mode) | No |
| Adjustment Lock Feature | No |
| Set Point Copy Feature | No |
| Power on Delay Feature | No |
| Auto Input Change | No |
| Displaying Use Time Feature | No |
| TV Tuner | No |
| Gain Control | No |
| Screen Adjustment | No |
| Colour Temperature Adjustment | No |
| Gamma Adjustment | No |
| Self-Adjust | No |
| Manual Image Size Adjustment | No |
| Save/Output Logging Feature | No |
| Hardware Diagnosis | No |
| Monitor Control Software Support | No |
| E-Mail Notification | No |
| SNMP | No |
| Temperature Control | No |
| Overscan Setting (AV) | No |
| RS232C Communication Speed Change | No |
| IR Pass-through Feature | No |
| Audio Selection per Image INPUT | No |
| Internal/External Speaker Selection | No |
| Sync on Green | No |
| Operating Time | 18/7 |
| Kosketuskohtien määrä | 20 |
| Pen Mode / Finger Mode | Yes |
| Pen Only Mode | No |
| Finger Only Mode | No |
| Palm Cancellation | No |
| Screen Hardness (H) | 9 |
| Operating System Compatibility | Android, Linux, Native Multi-Touch, Default Mouse, Chrome OS 87 or higher, Windows 10, Mac OSX, Windows 11 |
| Haze Level [%] | 25 |
| Thickness [mm] | 3 |
| Touch Method | Finger, Gloves, Stylus dual pen tip (3mm/9mm) |
| Windows Ink | Yes |
| Operating Voltage(ACV) / Frequency(Hz) | 100-240 |
| Operating Voltage(ACV) / Frequency(Hz) | 50-60 |
| Via AC-Adapter | No |
| Power Consumption (W) (Operating MAX) | 110 |
| Storage Temperature [°C] | -10 - 60 |
| Power Saving Mode (W) | < 0.5 (ECO Standby) |
| Energy Star | No |
| CE, CB Report | Yes |
| GOST | No |
| Presence of Lead (Accepted application of RoHS Directive) | No |
| Product Weight Without Stand (Kg) | 21 |
| Product Weight With Stand (Kg) | 29 |
Sharp LM431
For best-in-class touch performance and value, the Sharp LM series commands feature-rich professional capabilities for small meeting spaces and interactive signage applications.
Sharp Pen Software with Manuals
Version 3.8.2.17 For SHARP Touch Monitors only
17.06.2025
Sharp LM431
For best-in-class touch performance and value, the Sharp LM series commands feature-rich professional capabilities for small meeting spaces and interactive signage applications.
Document-Of-Conformity Jun 20, 2025_ph
SoC-PSTI-A-LMxx1-Series.pdf_ph
20.06.2025
Document-Of-Conformity May 30, 2025_ph
UKCA-DoC-2025-03-1239-PN-LM431.pdf_ph
30.05.2025
Document-Of-Conformity May 30, 2025_ph
CE-DoC-2025-02-1228-PN-LM431.pdf_ph
30.05.2025
Operational-Manuals Jun 20, 2025_ph
PNLM551-LM431_manual_English.pdf_ph
20.06.2025
Operational-Manuals Jun 20, 2025_ph
PN-LM551-LM431_Secure_command_manual.pdf_ph
20.06.2025
Operational-Manuals Jun 20, 2025_ph
PN-LM551-LM431_N-Format_command_manual.pdf_ph
20.06.2025
Operational-Manuals Jun 20, 2025_ph
PN-LM551-LM431_S-Format_command_manual.pdf_ph
20.06.2025
Operational-Manuals Jun 20, 2025_ph
EShare-WirelessCasting-Manual-CV.pdf_ph
20.06.2025
Service-Manuals Jun 17, 2025_ph
PN-LM_DismantleInstruction_PN-LMxx1.pdf_ph
17.06.2025