TFT

Abbreviation with 2 meanings

TFT
Stands forThyroid function tests
Meanings2
CategoriesMedical, Technology & Computing

TFT has two meanings. It stands for Thyroid function tests (laboratory test) or Thin-film transistor (consumer electronics).

Meanings of TFT at a glance

#TFT stands forContext
1Thyroid function testsMedical › Laboratory Test
2Thin-film transistorTechnology & Computing › Consumer Electronics

1. Thyroid function tests

Medical · Laboratory Test Abbreviations

Umbrella term for the blood tests that assess the thyroid: TSH, free T4 and sometimes free or total T3, with thyroid antibodies added when autoimmune disease is suspected. Results are read as a pattern, such as high TSH with low FT4 for primary hypothyroidism.

Example: TFTs normal; fatigue workup moving on to ferritin and a sleep history.

Common in British and Commonwealth usage as "TFTs". Many labs run a cascade in which TSH is measured first and free T4 or T3 is added only if TSH is abnormal, cutting costs. Acute illness can produce misleading patterns (non-thyroidal illness syndrome), so testing is often deferred until recovery.

2. Thin-film transistor

Technology & Computing · Consumer Electronics Abbreviations · also used in science

Tiny transistor deposited on the glass of a display to control each subpixel individually, the basis of active-matrix LCD and OLED screens. Spec sheets often say "TFT LCD" for basic LCD panels.

Example: The budget phone's TFT LCD looks washed out next to an AMOLED screen.

Nearly all modern LCDs are TFT displays, so the label reveals little; IPS and VA screens are TFT LCDs too. Backplane materials include amorphous silicon, LTPS (low-temperature polysilicon), IGZO and LTPO, which differ in speed and power efficiency. TFT backplanes replaced passive-matrix designs that suffered from slow response and ghosting.

More laboratory test abbreviations

  • TAT – Turnaround time
  • TBili – Total bilirubin
  • TC – Total cholesterol
  • TDM – Therapeutic drug monitoring
  • TG – Triglycerides
  • TIBC – Total iron-binding capacity
  • TP – Total protein
  • TSAT – Transferrin saturation

See all 135 laboratory test abbreviations →

More consumer electronics abbreviations

  • SD – Standard definition
  • SDR – Standard dynamic range
  • SECAM – Séquentiel couleur à mémoire (sequential color with memory)
  • STB – Set-top box
  • THX – Tomlinson Holman's eXperiment
  • TN – Twisted nematic
  • TPU – Thermoplastic polyurethane
  • TRRS – Tip, ring, ring, sleeve

See all 104 consumer electronics abbreviations →

This entry is for general education and is not medical advice. Abbreviation use varies between institutions; always confirm in context.