E350S030 3.5-inch Square TFT LCD Display 320x480 SPI

3.5" 320x480 SPI

E350S030 is a 3.5-inch display with a resolution of 320x480, a 4-wire SPI interface and an ST7796 driver, viewed at 12 o'clock.

Outline 55.26 (W) × 84.52 (H) × 2.70 (T) mm; active area 48.96 (W) × 73.44 (H) mm; operating temperature -20~70 ℃; brightness 250~280 cd/m².

Touch: Optional capacitive touch (selectable per project).

ModelE350S030
Size3.5 inch
Resolution320x480
Interface4-wire SPI
Driver ICST7796
Viewing angle12 o'clock
TouchOptional capacitive touch
Pin count18pin
Pin pitch0.5mm
ConnectionConnector
Outline (W×H×T)55.26 (W) × 84.52 (H) × 2.70 (T) mm

Category: TFT LCD Displays & Modules

Documents

Documents & driver code

ETMCU projects are Keil-based; ESP32 projects are ESP-IDF and include LVGL.

ETMCU board · Keil project

Complete build-ready projects including driver code, schematics and examples. Need an interface that is not listed? Ask our engineers.

Specifications

Detailed specifications

What these numbers mean
  • Brightness 250 cd/m²Clearly readable under normal indoor lighting; choose a high-brightness model for direct sunlight or semi-outdoor use.
  • Interface 4-wire SPIFew pins and simple routing, suited to small and medium sizes with limited host resources; use RGB / MIPI for high-resolution larger panels.
  • Resolution 320x480Medium density text and graphics are practical, suitable for gauges and list-style UI.
  • Viewing angle 12 o'clockThe marked direction is the optimum viewing direction (e.g. 12 o’clock suits viewing from above or straight on); contrast falls off when viewed from the side.
  • Operating temperature -20~70 ℃Covers most indoor and general industrial environments; choose a wide-temperature model beyond that.
  • TouchThis model offers "Optional capacitive touch" as an option, so touch can be included or omitted per project.

Basic description

ItemSpecification
Product name3.5-inch TFT display
Display modetransmissive
Display format320 × RGB × 480 dot matrix
Data formatRGB565
Interface type4-wire SPI
Direction12 o'clock
Driver ICST7796U (Sitronix, Taiwan)

Mechanical specifications

ItemSpecification
Outline dimensions55.26 (W) × 84.52 (H) × 2.70 (T) mm
Resolution320 × 480 dots
Active area48.96 (W) × 73.44 (H) mm
Pixel size0.153 (W) × 0.153 (H) mm

Absolute maximum ratings

ItemSymbolMinMaxUnitRemark
IO voltage (VDDI) V1.8~3.3 V
Analog voltage (VDD) V2.8~3.3 V
Operating temperature TOPR-20~70 ℃
Storage temperature TSTR-30~80 ℃

Brightness & power

ItemSpecification
LED backlight forward voltage VLED3.0~3.3 (typ. 3.1) V
LED backlight current ILED90 mA
Display surface luminance LS250~280 cd/m²
LED backlight uniformity LD80 %
Total display power consumption PLCD0.33 W

Pin definition

1 GND
2 RESET
3 SCL
4 D/C
5 CSX
6 SDA
7 SDO
8 GND
9 VDD
10 LEDA
11 LEDK
12 LEDK
13 LEDK
14 LEDK

Response time & contrast

ItemSpecification
Response time Tr+Tf θ=0°20~40 ms
Contrast ratio CR θ=0°500

Viewing angle

ItemSpecification
12 o'clock CR≥1060°
9 o'clock CR≥1070°

Reliability test

No.Test itemTest conditions
High temperature storage80 °C × 120 h. After the test, the tested LCD samples must be left in a normal indoor temperature and humidity environment for 2–4 hours before functional and visual inspection.
Low temperature storage-30℃*120 hours
High temperature / high humidity storage60℃*90%RH*120Hrs
High temperature operation70℃*72 hours
Low temperature operation-20℃*72 hours
Thermal cycling storage-20 °C (30 min) ~ 25 °C (5 min) ~ 70 °C (30 min), 10 cycles
Highlights

Highlights & Applications

Key features

  • Surface luminance 250 cd/m², clearly readable in normal indoor lighting
  • Driven by ST7796, a well-established part with readily available documentation
  • Supports 4-wire SPI interface, selectable to match host resources
  • Operating temperature -20~70 ℃, covering most indoor and general industrial environments
  • Available with "Optional capacitive touch" option, so touch can be decided per project
  • Resolution 320x480, sufficient for gauges and list-style interfaces

Typical applications

  • Industrial control panels and instrument displays, landscape or portrait
  • Self-service, access-control and attendance terminals
  • Handheld or desktop equipment needing a larger display area
  • Mid-to-large touch interfaces (industrial, medical, self-service)

Not sure whether it fits? Tell us your environment and host platform and an engineer will confirm.

Ordering & Support

Ordering & Support

Lead timeStandard models ship in 3–7 days from stock; custom models take 7–15 days for samples; volume orders are scheduled on confirmation
MOQStandard models support small trial batches; custom projects depend on tooling and material commitment
SamplesSamples available for standard models; custom samples take 7–15 days
CustomisationSize, resolution, luminance, interface, touch (capacitive / resistive), FPC length and pin definition, construction (posts / iron frame), cover glass and bonding, firmware and UI
CertificationNational High-Tech Enterprise · ISO9001 certified · CE / FCC / RoHS reports available on request
Technical supportSchematic review, timing confirmation, driver debugging and UI development support; datasheets (PDF) and driver code published on most product pages, with schematics included in the example projects
PackagingCustom blister trays with foam separators between trays; units per carton are determined by the size and shape of the product. Thick foam protects every side inside the carton, suitable for long-distance transport and repeated handling.
WarrantyOne-year warranty to industry standard. Our quality and after-sales team analyses every defective unit: where the cause is ours, we correct it in subsequent production so it does not recur.
Long-term supplyLong-term supply commitments available for industrial projects, assessed against the product lifecycle
ExportExporting to Europe, the US, Japan, Korea and Southeast Asia; we can help arrange international logistics and export documents
FAQ

Frequently asked questions

Do you support customisation and samples?

Yes. EYA is our own factory and can customise size, interface, luminance and touch, and we provide samples.

What is the MOQ and lead time?

Standard models ship in 3–7 days from stock; custom models take 7–15 days for samples. Please contact sales for volume orders.

Can you provide datasheets and driver material?

Datasheets (PDF), driver code and complete example projects (schematics included) are published on most product pages and can be downloaded directly. For anything not listed, tell us the model and we will send it.

What certifications do you hold?

ISO9001 quality management certification and National High-Tech Enterprise status; CE / FCC / RoHS reports available on request.

Drawings

Mechanical drawings

Outline dimensions, side views and pin definitions. This model has 2: Standard / Capacitive touch. Click to zoom.

Standard
Capacitive touch

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