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Home > LCD Display > Industrial TFT Display > Reflective TFT LCD Display 4.2 Inch Monochrome Screen 400x300 SPI LCD Wide Temperature Rang

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Reflective TFT LCD Display 4.2 Inch Monochrome Screen 400x300 SPI LCD Wide Temperature Rang GDTL042T71

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Our 4.2-inch reflective display combines ultra-low power consumption with a fast refresh rate for a seamless, dynamic viewing experience in industrial and portable applications.

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Description

4.2" Reflective TFT LCD

Meet the 4.2-inch TFT-Paper display. It merges the ultra-low power of reflective technology with the smooth performance of TFT. Without a need for a backlight, it offers perfect sunlight readability and stable operation from -20°C to 70°C. Engineered for industrial handhelds, smart meters, and electronic shelf labels where endurance and clarity are critical.

Key Features

Ultra-Low Power Consumption

Due to its reflective technology, it operates without a backlight, making it highly energy-efficient.

Fast Refresh Rate for a Paper-Like Display

It offers smoother performance compared to e-paper screens, enabling dynamic content without lag or ghosting.

Wide Operating Temperature Range

It ensures stable performance in demanding environments, from industrial to automotive applications.

Technical Specifications

Part Number GDTL042T71

IC ST7305

Size 4.2"

Connector 24 Pin FPC, Pitch:0.5mm

Resolution 300x400

Display Mode Mono TFT / Reflective TFT

Dot Pitch 0.212(H)x 0.212(V)

Interface 4 Line SPI

Active Size(mm) 63.6(H)x 84.8(V)

Operating Temp -20℃~70℃

Outline Size(mm) 67.6(H)x 91.0(V) x0.8(D)

Storage Temp-30℃~+80℃

Weight
10g

Technical Details

Pinout Description

Pin	Signal	Type	Description
1-4, 6-8, 19, 23	NC	NC	No Connection
5	VCC(I-O)	PWR	Digital Circuit Power Supply
9	TE	CTRL	Tearing Effect Signal for synchronizing MCU
10	LCD_RES	CTRL	Reset input pin (Low active)
11	LCD_D/C	CTRL	Data/Command selection in 4-wire serial interface
12	LCD_CS	CTRL	Chip Select (Low enable, High disable)
13	LCD_SCLK	CTRL	Serial Interface Clock pin
14	LCD_SDI	CTRL	SPI interface input/output pin
15	IOVCC	PWR	Power Supply (Digital) 1.65V-3.3V
16	VCI	PWR	Power Supply (Analog) 2.55V-3.3V
17	GND	GND	Power Ground
18	VGH	PWR	Power output (positive) for Gate Driver
20	VIV	PWR	Power output for Analog Driver
21	AVDD	PWR	Power output for Analog Driver
22	VNV	PWR	Power output for Analog Driver
24	VGL	PWR	Power output (negative) for Gate Driver

Files & Download

[PDF] GDTL042T71_Specification

[PDF] ST7305 IC Datasheet

[PDF] ePaper Display Usage Guidelines

[FAQ] Why can't I download the files?

Typical Applications

Industrial

Industrial Control Terminals

Designed for wide-temperature environments (-20℃ to 70℃, this industrial terminal is ideal for equipment like CNC machines and PLC panels, providing clear display of real-time parameters, alarm messages, and operation menus.

Industrial

Logistics & Warehousing Equipment

For dynamic displays like ESLs and AGV navigation, this reflective TFT is a cost-effective alternative to e-paper. It offers a faster response (<15ms) and lower static power consumption (µA-level) for frequent updates.

Consumer Electronics

Smart Home Controls

In smart door locks and temperature control panels, this display can show operation menus and status information, supporting touch interaction. Its wide viewing angle (>170°) and anti-fingerprint coating enhance the user experience.

We Also Recommend

Sustainable Technology

Paperless Future

Each display saves ≈3,000 sheets annually. Join 15,000+ businesses reducing paper waste with ePaper solutions.

Sustainable Packaging

95% recycled materials with FSC-certified packaging. 100% plastic-free protective materials.

Energy Leadership

90% less energy than LCDs. Annual CO₂ reduction equivalent to 50 mature trees.

About Us

Thank you for your interest in our product. We could provide front light, touch screen, and other accessories for you. For more information, please refer to the relevant manual available in our Library or visit our official website at www.good-display.com.
If you need any further assistance or have any other questions, please feel free to contact us. We sincerely invite you to send your inquiries to our email at buyepaper@good-display.com.

Certifications

ISO 14001 Environmental Management
RoHS Compliant | Energy Star Certified

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