3.5-inch TFT LCD Replacement Guide
Quick Answer
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.
“Supply continuity is a scheduling decision, not a promise. We can commit to 5+ years on standard parts because we control the line, the tooling and the schedule ourselves.”
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/N | Size | Resolution | Type | Interface | Driver IC | Luminance |
|---|---|---|---|---|---|---|
| RG-T035GLH-01 | 3.5" | 320x240 | TN | RGB 24bit 54PIN | HX8238D | 350 cd/m² |
| RG-T035GLH-01CA | 3.5" | 320x240 | TN | RGB 24bit 54PIN | HX8238D | 280 cd/m² |
| RG-T035GLH-01P | 3.5" | 320x240 | TN | RGB 24bit 54PIN | HX8238D | 280 cd/m² |
| RG-T035GLH-02 | 3.5" | 320x240 | TN | RGB 24bit 54PIN | HX8238D | 700 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.
Related pages
TFT LCD Drop-in Replacement Guide
Replacement hub · RONEN DISPLAY
LQ035NC211 replacement
Model guide · RONEN DISPLAY
Find an LCD by size and resolution
How-to · RONEN DISPLAY
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 →
How these numbers are measured
- Luminance (cd/m², i.e. nit) — measurement method for transmissive LCD modules is defined in IEC 61747-30-1.
- Operating temperature range — the ambient band a module is rated to run in. Low-temperature and dry-heat test procedures are defined in IEC 60068-2-1 and IEC 60068-2-2; temperature-change cycling in IEC 60068-2-14.
- Backlight lifetime — expressed as LED lumen maintenance; measurement method per IES LM-80 (minimum 6000 h), with long-term projection per IES TM-21.
These are generic test-method standards cited to explain how each specification is defined and measured. They are not product certifications. The actual test conditions and rated values for each RONEN model are stated in that model's datasheet.