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Small rectangular LCD screen module with thin border

Ruth's sister

Ruth's sister 3.0 inch LCD module 240*400

SKU CH-GCAC-QZZZA

A 3.0 inch LCD module with a 240 by 400 resolution for tablet repair or custom builds

  • 0 inch compact display fits tight enclosures
  • 240 by 400 resolution renders sharp tablet graphics
  • New condition ensures reliable first-use performance
  • Internal power cable design simplifies tablet integration
  • Sub 7 inch form factor suits portable device builds

3.0 inch LCD module for internal builds

The Ruth's sister TM030LDHT1 is a compact display panel measuring 3.0 inches with a 240 by 400 pixel resolution. It is classed as an internal power cable component and suits hobbyists who want a small readout inside a custom chassis or embedded project.

Low thermal load and silent operation

The module draws minimal power and generates negligible heat during normal use. It has no moving parts so it adds no audible noise to the system. Its small footprint keeps cable routing simple and does not affect airflow around other components.

Fits tight spaces without extra hardware

The thin profile slides into narrow gaps between drives or behind motherboard trays where larger screens cannot go. It connects using the existing internal power cabling so no separate supply or adapter is needed. Builders who need a larger viewing area or touch input should look elsewhere.

How it compares

Measured against everything we stock in Internal PSU & Riser Cables, at today’s prices. Recalculated every night.

Price $66.99
Pricier than about 88% of the 7,839 comparable items (median $14.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How do I install the 3.0 inch LCD module with its 240 by 400 resolution into a tablet, and which step causes the most issues?

Connect the module's flexible ribbon cable to the tablet's mainboard connector, ensuring the gold contacts face the correct direction; the step most people get wrong is inserting the cable upside-down or not fully seating the latch, which results in a blank or flickering display.

What maintenance or replacement will the 3.0 inch LCD module need over its service life?

The module itself has no user-serviceable parts; if the backlight dims unevenly, the glass cracks, or the 240 by 400 pixel array develops permanent lines, the entire module must be replaced as a single unit.

What is the first limitation that appears when the 3.0 inch LCD module runs continuously at full brightness?

Extended operation at maximum brightness accelerates backlight ageing, causing a gradual drop in luminance and a shift toward yellow; this degradation becomes noticeable before any pixel-level failure in the 240 by 400 array.

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