JGT177W12ONT3 1.77'' Jiaguan vertical EWV TFT LCD,128×160,2PIN SPI ST7735V3,12H view,-20~70℃,2.30mm ultra-thin for wearable & medical devices.

Product Model:JGT177W12ONT3
Manufacturer:Private Enterprise
Update time:2026-08-13
Visits:2

Download Contact Us

Category

Solution to the pain point of display in strong light environment
Applications in scenarios such as industrial automation, outdoor monitoring, vehicle-mounted terminals, and special equipment

Introduction

JGT177W12ONT3 1.77" Jiaguan Vertical EWV SPI ST7735V3 TFT LCD

Ultra-small embedded equipment such as smart wearables, portable medical devices, micro industrial controllers and MCU development boards widely adopt compact vertical display modules with low pin-count interfaces. The JGT177W12ONT3 1.77-inch Jiaguan vertical EWV TFT LCD comes with native 128×160 vertical resolution, ST7735V3 universal driver, 2PIN SPI serial FPC and 12H horizontal wide view. With -20~70℃ industrial wide temperature and 2.30mm ultra-thin body, it delivers steady, low-cost display performance for smart bands, fingertip oximeters, micro controllers and various mini embedded systems.

JGT177W12ONT3 Full Technical Specifications

Item	Specification	Product Advantage
Part Number	JGT177W12ONT3	Standard 1.77 inch EWV industrial vertical screen, ST7735V3 open-source routine, stable bulk supply for wearable devices
Panel Type	EWV Vertical TFT LCD	Native vertical ratio, no software rotation needed, reduces small MCU computing load
Resolution	128×160 Vertical	Vertical pixel layout, battery & heart-rate icons displayed with no stretch, clear small text
Diagonal Size	1.77 inch	Dedicated size for tiny cutouts of smart bands and oximeters
Display Tech	12H Horizontal Wide View	No whitening when glancing from the side, no color shift for daily data checking
Driver IC	ST7735V3	Common small-screen driver, compatible with 51/STM32/Arduino MCU families, rich documentation
Interface Type	SPI Serial	Very few IO pins occupied, drivable by low-spec MCU, extremely simple peripheral circuit
Pin Definition	2PIN Minimal FPC	Ultra-short cable, no space occupation inside narrow wearable internals, simple PCB routing
Operating / Storage Temp	-20℃~70℃ / -30℃~80℃	Stable long-term lighting in home and workshop without screen blur or color drift
Overall Dimension	34.00×43.90×2.30mm	Extremely thin micro module, directly embeddable into band and oximeter cavities
Active Area	35.96×28.83mm	Narrow bezel layout, larger visible area within the same housing
Touch Option	Without Touch Panel	Support custom resistive/capacitive TP, add touch later without mold opening
Application Fields	Wearable / Portable Medical / Micro Industrial / MCU / Mini Consumer	Ultra-small low-cost dedicated display module for compact embedded equipment

1. 128×160 Vertical Small Resolution for Wearable Compact Devices

JGT177W12ONT3 adopts a dedicated 1.77-inch 128×160 vertical pixel specification, perfectly matching the vertical UI layout of smart bands and fingertip oximeters. Heart rate, battery and step icons are arranged in clean layers with no stretching. No program rotation is needed, reducing low-end MCU computation load; the housing cutout size is industry-standard, lowering new-product mold investment.

2. Mature EWV Liquid Crystal, Stable for Mass Consumer Products

This product uses a standard EWV liquid crystal substrate with mature mass-production process. Brightness and color difference across the same batch are well controlled, ensuring no display variation in bulk shipments of bands and health instruments. Combined with 12H horizontal wide view, side-glance status checking will not whiten; comfortable for long daily indoor viewing with clear recognition of tiny values.

3. ST7735V3 Universal Driver, Extremely Low MCU Development Threshold

Equipped with the dedicated ST7735V3 small-screen driver IC, abundant open-source debugging routines are available online and directly portable to 51, STM32, ESP32 and Arduino. Single SPI line transmission occupies very few IO pins with a simple hardware peripheral circuit, greatly shortening student training and small wearable product R&D cycles.

4. 2PIN Ultra-Short FPC, Space-Saving for Wearables

The integrated 2PIN minimal FPC connection greatly compresses cable space compared with multi-pin screens, avoiding cable stacking interference around the small battery inside bands. Assembly is simple; revision replacement of existing wearable products needs no PCB redesign, lowering hardware material cost.

5. 2.30mm Ultra-Thin Body, Stable Indoor Wide-Temp Operation

Total thickness only 2.30mm with a compact 34×43.9mm outline, directly embeddable into the tiny cavities of bands and mini detectors. Operating range covers -20~70℃, storage tolerance -30~80℃. Long-term use in normal room and ordinary workshop rarely causes screen blur; the non-touch version can add a resistive/capacitive touch layer on demand.

6. Full Coverage for Multiple Micro Wearable Devices

Smart Wearable Devices

Smart bands, children's watches, sports pedometers, mini health bands.

Portable Medical Instruments

Fingertip oximeters, mini thermometers, portable health collectors.

Micro Industrial Panels

Small temperature-control modules, simple PLC status prompt screens, mini acquisition terminals.

MCU Teaching Equipment

51/STM32/Arduino training development supporting small screens.

Mini Consumer Electronics

E-cigarettes, small remote controls, portable smart accessory displays.

7. Product Selection Guidance

2PIN SPI pinout occupies minimal IO, ideal for low-spec MCUs and Arduino platforms;
-20~70℃ standard temperature range fits most indoor wearable and portable medical projects, wider temp version customizable;
2.30mm slim structure needs reserved assembly gap to avoid panel extrusion damage;
Bare screen without touch, resistive/capacitive touch layers available on demand.

JGT177W12ONT3 Frequently Asked Questions

Q1: What is the working temperature of this vertical EWV screen?

A: Operating -20~70℃, storage -30~80℃, suitable for home, workshop and indoor portable devices.

Q2: What interface does this LCD module adopt?

A: Standard SPI serial interface with a 2PIN minimal FPC, occupying very few MCU IO pins.

Q3: How thick is the entire display module?

A: Total thickness only 2.30mm with a 34.00×43.90mm outline for compact equipment installation.

Q4: Can touch panel be customized on this screen?

A: Resistive or capacitive touch can be added later without mold modification.

Q5: Which MCU platforms is the ST7735V3 driver compatible with?

A: 51, STM32, ESP32 and Arduino are all supported with abundant open-source routines available.

The JGT177W12ONT3 1.77-inch Jiaguan vertical EWV TFT LCD features 128×160 vertical resolution, 12H wide view, ST7735V3 universal driver, 2PIN SPI FPC, -20~70℃ temperature range and ultra-thin 2.30mm body. The EWV panel offers outstanding cost advantage, an open-source driver and compact size, supporting sample testing and touch customization service, an ideal low-cost display module for smart bands, portable medical, micro industrial and MCU applications.