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Drop-in Replacement

3.5-inch TFT LCD Replacement Guide

2026-10-12 · 6 min read

Quick Answer (GEO extract block)

Looking for a 3.5-inch replacement? We stock standard modules across the common 3.5-inch resolutions and interfaces. Match size, resolution and interface first, then verify pinout, timing and backlight — tables below are live catalog parts.

The 3.5-inch replacement landscape

320x240 remains the workhorse resolution for compact instrumentation, with several TN and IPS variants sharing the same footprint. All parts below are standard catalog modules — no tooling, no NRE, sample-first qualification.

Standard modules by group

320x240 RGB (RGB interface)

RONEN P/NSizeResolutionTypeInterfaceDriver ICLuminance
RG-T035GLH-013.5"320x240TNRGB 24bit 54PINHX8238D350 cd/m²
RG-T035GLH-01CA3.5"320x240TNRGB 24bit 54PINHX8238D280 cd/m²
RG-T035GLH-01P3.5"320x240TNRGB 24bit 54PINHX8238D280 cd/m²
RG-T035GLH-023.5"320x240TNRGB 24bit 54PINHX8238D700 cd/m²

13 matching modules in this group; the table shows representative parts. Contact us for the full list.

TN vs IPS at 3.5 inches

The 13 catalog modules in 3.5-inch 320x240 RGB split between TN and IPS types. TN parts are the lower-cost direct heirs of classic 320x240 panels; IPS parts widen the viewing angle and improve contrast for handheld instruments. Both keep the same resolution and RGB interface class, so the choice is optical and commercial, not electrical.

Qualifying the swap

Match interface family, bit depth and pin count first, then confirm pinout, timing and backlight against a sample or drawing — the process is described in our 5-step verification checklist.

Frequently asked questions

How many standard modules do you offer at 3.5-inch?

The groups above are drawn live from our catalog; contact us for the current full list with datasheets.

Is an IPS replacement drop-in for a TN original?

At the same resolution, interface and pin count — usually yes electrically; the viewing angle and contrast improve. We confirm pinout and backlight against your sample before you order.

Do these need custom tooling?

No. Every module listed is a standard production part — samples ship without tooling or setup charges.

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Need help specifying a display?

Send us your size, resolution, brightness, interface and operating temperature — our application engineers will come back with matching standard modules or a standard in-stock proposal within one working day. Request a quote →

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