Can E3531QP be customized and sampled?

Yes. EYA Display is an in-house factory and supports customization of size, interface, touch and brightness, and provides samples.

E3531QP 3.5-inch TFT LCD Display 320x480 SPI

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E3531QP 3.5-inch TFT LCD Display 320x480 SPI

Name: E3531QP 3.5-inch TFT LCD Display 320x480 SPI
Brand: EYA Display
SKU: E3531QP
Availability: InStock

3.5" 320x480 SPI

E3531QP高亮 is a 3.5-inch display with a resolution of 320x480, a 4-wire SPI interface and an ST7796U driver, viewed at Full viewing angle.

Outline 55.26 (W) × 84.52 (H) × 2.40 (T) mm; active area 48.96 (W) × 73.44 (H) mm; operating temperature -20~70 ℃; brightness 400~450 cd/m².

Touch: Optional capacitive touch (selectable per project).

Model	E3531QP
Size	3.5 inch
Resolution	320x480
Interface	4-wire SPI
Driver IC	ST7796U
Viewing angle	Full viewing angle
Touch	Optional capacitive touch
Pin count	16pin
Pin pitch	0.5mm
Connection	Connector
Outline (W×H×T)	55.26 (W) × 84.52 (H) × 2.40 (T) mm

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Category: TFT LCD Displays & Modules

Specifications

Detailed specifications

What these numbers mean

Brightness 400 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 Full viewing angleColours hold up from above, below and both sides — useful when several people view it or the mounting angle varies.
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

Item	Specification
Product name	3.5-inch IPS full-viewing-angle display
Display mode	transmissive
Display format	320 × RGB × 480 dot matrix
Data format	RGB565
Interface type	4-wire SPI
Direction	Full viewing angle
Driver IC	ST7796U (Sitronix, Taiwan)

Mechanical specifications

Item	Specification
Outline dimensions	55.26 (W) × 84.52 (H) × 2.40 (T) mm
Resolution	320 × 480 dots
Active area	48.96 (W) × 73.44 (H) mm
Pixel size	0.153 (W) × 0.153 (H) mm

Absolute maximum ratings

Item	Symbol	Min	Max	Unit	Remark
IO voltage (VDDI) V	1.8~3.3 V
Analog voltage (VDDA) V	2.8~3.3 V
Operating temperature TOPR	-20~70 ℃
Storage temperature TSTR	-30~80 ℃

Brightness & power

Item	Specification
LED backlight forward voltage VLED	3.0~3.3 (typ. 3.1) V
LED backlight current ILED	120 mA
Display surface luminance LS	400~450 cd/m²
LED backlight uniformity LD	80 %
Total display power consumption PLCD	0.462 W

Pin definition

1 Module_GND

2 LCD_IOVCC

3 LCD_SPI_MISO

4 LCD_TE

5 LCD_SPI_MOSI

6 LCD_SPI_DCX

7 LCD_SPI_SCLK

8 LCD_SPI_SS

9 LCD_RST

10 Module_VCC

11 NC

12 NC

13 NC

14 NC

15 Backlight_LEDA

16 Backlight_LEDK

Response time & contrast

Item	Specification
Response time Tr+Tf θ=0°	30~35 ms
Contrast ratio CR θ=0°	1200

Viewing angle

Item	Specification
12 o'clock CR≥10	80°
9 o'clock CR≥10	80°

Reliability test

No.	Test item	Test conditions
High temperature storage	80 °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 storage	60℃90%RH120Hrs
High temperature operation	70℃*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 400 cd/m², clearly readable in normal indoor lighting
Full viewing angle — colours hold up from any direction, giving more freedom in mounting angle
Driven by ST7796U, 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

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

Lead time	Standard models ship in 3–7 days from stock; custom models take 7–15 days for samples; volume orders are scheduled on confirmation
MOQ	Standard models support small trial batches; custom projects depend on tooling and material commitment
Samples	Samples available for standard models; custom samples take 7–15 days
Customisation	Size, resolution, luminance, interface, touch (capacitive / resistive), FPC length and pin definition, construction (posts / iron frame), cover glass and bonding, firmware and UI
Certification	National High-Tech Enterprise · ISO9001 certified · CE / FCC / RoHS reports available on request
Technical support	Schematic 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
Packaging	Custom 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.
Warranty	One-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 supply	Long-term supply commitments available for industrial projects, assessed against the product lifecycle
Export	Exporting to Europe, the US, Japan, Korea and Southeast Asia; we can help arrange international logistics and export documents

Request a quote / sample More FAQs

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.

E3531QP 3.5-inch TFT LCD Display 320x480 SPI

Documents & driver code

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