What screen sizes are supported?

Optional screen sizes include 55, 65, 75, 85, and 98 inches.

Does the device support 4G connectivity?

Yes, 4G is available as an optional network feature alongside RJ45 and WiFi.

What operating system does the signage use?

It runs on Android 11, which supports system upgrades.

31.2 Inch Digital E-Ink Screen

Name: Outdoor Digital Signage 13.3/28/31.2 Inch Digital E-Ink Screen
Brand: Shenzhen Letine Technology Co., Ltd.
SKU: 2241170655

Guangdong, ChinaShenzhen Letine Technology Co., Ltd.

US$1,099.00

1-99 Pieces

US$699.00

100+ Pieces

Sample price:US$999.00/piece.Request sample

Product profile

Customization

Available

Application

Outdoor AD Player

Screen Size

13.3inch/28inch/31.2inch

Model NO.

E-ink screen

Installation

Wall-Mounted

Type

Network Version AD Player

Touch Screen Type

Capacitive

Screen Technology

LCD

Interface Type

USB

Remote Control

With Remote Control

OS

Android

Customized

RAM

Memory

8GB

Operation System

Android 7.1

Fitting Method

3mm Cover AG Glass, UV, Front Light Fully Laminate

Resolution

1600*1200/2560*1440 Optional

Brightness

260CD/M2-500CD/M2

Color

Black and White, 16 Gray Levels

Waterproof

IP65

Customize

Support OEM / ODM for Software & Hardware Customiz

Other Screen Size Support

Optional

Key

Power, up, Dowm, Reset

CPU

Quad-Core Arm Cortex A7 1.2g

Transport Package

Foam + Carton

Specification

900*200*750mm

Trademark

OEM/ODM

Origin

China

Production Capacity

5000 PCS/Month

Key features

Flexible Customization: Supports OEM/ODM, full/minor customization, and design/sample-based options.

High Brightness Display: Brightness ranges from 250 to 500 cd/m2 for clear visibility in outdoor settings.

Advanced Android OS: Runs on Android 11 with support for system upgrades and 4G RAM.

4K Resolution Option: Offers 4K resolution with a 5000:1 contrast ratio for sharp image quality.

Robust Connectivity: Includes RJ45, WiFi, 2*USB2.0, Audio, TF Card, and optional HDMI interfaces.

Low Power Consumption: Rated power is 10W x 2 with peak power of 15W x 2 for energy efficiency.

Certified Quality: Products hold FCC, RoHS, and CE certifications for safety and compliance.

Secure Packaging: Uses EPS foam and wooden frames for mass orders to ensure shockproof protection.

Company profile

Low MOQCustomization from SamplesODM ServicesOEM Services

Shenzhen Letine Technology Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 19 years CertifiedNearest Port: Shenzhen Yantian PortAverage Response Time: ≤3.52h

AI-Powered supplier vetting

SummaryShenzhen Letine Technology Co., Ltd. is a China-based limited company established in 2006, with 78 employees and business activities covering computer hardware, software, peripherals, digital products, artificial intelligence hardware/software, wearable devices, and import/export. The supplier reports strong customization options, OEM service for popular brands, SDK availability, inventory capability, quality assurance, documented complaint and corrective-action procedures, and 19 years of export experience. It also states that 90% of sales are exports and that it has participated in the 2025 ISE-Spain trade show. However, no valid manufacturing-capacity contract exists with its factory or related subcontractors, and it lacks overseas warehouses, showrooms, agents, or branches. The supplied information does not provide verifiable certifications, detailed customer cases, or sufficient financial-performance evidence.

Supplier typeThe supplier is identified as a combined company and a limited company, Shenzhen Letine Technology Co., Ltd., operating from Guangdong, China. Its stated scope includes computer hardware, software, peripherals, digital products, AI-related products, wearable devices, and import/export activities, indicating a technology supplier with both trading and manufacturing-related activities.

After-Sales capabilityThe supplier states that it has fast and professional after-sales capabilities, with a sales team available online 24 hours. It also reports clear procedures and followed records for handling customer complaints and corrective and preventive actions, providing explicit evidence of an established service process.

R&D capabilityThe supplier reports R&D capability with an available SDK and business activities involving AI application software development, AI hardware sales, wearable smart-device manufacturing, and sales. These details support relevant technical and product-development capability, although no specific patents, R&D team size, or developed products are provided.

Customization capabilityThe supplier explicitly offers flexible, minor, and full customization, including customization from customer designs and samples. This directly indicates broad customization options across different starting inputs and project scopes.