Vim li cas LCD saib tsim cov kab tuag pixel?

Cov tsos ntawm cov kab pixel tsis zoo (ci, tsaus, lossis xim kab) ntawm lub LCD saib yog qhov tshwm sim los ntawm qhov tsis ua haujlwm hauv txoj kev teeb liab lossis tsav circuitry ntawm ib kab lossis kab ntawm pixels, uas ua rau tag nrho cov kab ntawm pixels tsis tuaj yeem tso saib kom raug.

I. Feem ntau Cov Uas Muaj Feem Ntau (Nqe los ntawm Qhov Muaj Peev Xwm)

1. Internal Ribbon Cable / Connector Failure (Feem ntau)

• FPC ribbon flexible cable yog xoob, oxidized, tawg, los yog ua rau tsis zoo kev sib cuag, tiv thaiv cov teeb liab los ntawm kev mus txog cov coj pixel kab los yog kab.

• Desoldering, corrosion, lossis lub cev puas tsuaj rau COF/COG qhov chaw sib txuas (qhov taw qhia kev sib txuas ntawm tus tsav tsheb IC thiab cov iav substrate). • Cov tsos mob: Tsau kab ntsug lossis kab rov tav; nias lub bezel yuav ua rau cov zaub hloov ib ntus.

2. Tsav IC / Circuit Court puas

• Kab/kab tsav tsheb ICs (Gate/Source Drivers) raug hlawv tawm, puas los ntawm electrostatic paug (ESD), los yog muaj hnub nyoog.

• Lub T-Con lub sij hawm tswj board yog faulty, tiv thaiv lub synchronized refreshing ntawm tag nrho cov kab los yog kab.

• Cov tsos mob: Kho cov kab ci ntsa iab lossis tsaus nti hla tag nrho lub vijtsam uas tsis tuaj yeem tshem tawm.

3. Sab hauv vaj huam sib luag Circuitry puas (Irreversible)

• Qhib circuits lossis luv circuits nyob rau hauv lub iav substrate cov ntaub ntawv kab los yog lub rooj vag kab (tsim los ntawm Array txheej txheem tsis xws luag, sab nrauv lub cev, los yog khawb).

• Ua tsis tiav ntawm TFT pixel array, ua rau cov transistors raws tag nrho cov kab hloov tsis tau.

• Kev tshwm sim: Ib txoj kab tas mus li tshwm sim; nias ntawm qhov screen lossis rov pib lub cuab yeej tsis muaj txiaj ntsig.

4. Kev puas tsuaj rau lub cev / kev cuam tshuam ib puag ncig

• Kev cuam tshuam, crushing, los yog tee ua rau puas tsuaj nyob rau hauv cov txheej txheem sab hauv.

• Dej ingress, noo noo, los yog corrosion ua rau Circuit Court luv luv los yog qhib circuits.

• Siab -kub aging lossis electrostatic tawm ua rau tawg ntawm lub voj voog tsav.

5. Cov teeb meem sab nraud / Graphics Card (Nyob rau qhov tsis zoo)

• Video cables (HDMI/DP/VGA) yog xoob, puas, los yog muaj oxidized connectors.

• Graphics card VRAM los yog tsav tsheb yog txawv txav; GPU muaj qhov sib koom ua ke txias.

• Cov tsos mob: Cov kab yuav flicker lossis hloov pauv hauv cov lus teb rau cov kev hloov pauv ntawm - duab npo; txuas tus saib sab nraud tuaj yeem pab txiav txim qhov teeb meem no.

II. Txoj kev daws teeb meem ceev

• Rov pib dua / Hloov Cable / Txuas Sab Nraud Saib → Kab Disappears: Sab nraud teeb liab lossis daim npav teeb meem.

• Kab tseem ruaj; Kev hloov pauv tshwm sim thaum nias lub bezel: Ribbon cable lossis qhov teeb meem cuam tshuam.

• Kab nyob ruaj ruaj thiab spans tag nrho cov tshuaj ntsuam: Internal vaj huam sib luag puas los yog puas tsav tsheb IC (feem ntau unrepairable).

III. Kho Feasibility

• Flex Cables/Connectors: Muaj peev xwm raug reseated los yog hloov.

• Tsav Tsheb / T-Con: Hloov tau lossis kho.

• Internal Vaj Huam Sib Luag Disconnections/Short Circuits: Kho tsis tau; yuav tsum tau hloov qhov screen.