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Jeyem Enterprises
   
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You are in : Home > Services > LCD > LCD Overview > LCD Problems
 

LCD

 
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LCD Problem

 

Dark Mura : Loss of crystal property due to extra pressure on the glass panel
Light Leakage : Improper fitment of back light unit
Bright dot : Pixel always remains on/Always energized
Dark dot : Pixel Always in OFF/Not Getting energized
Line Effect : Defect on a line unit due to Open between bus line inside Panel as well as driver IC lead open.
Broken lines : Defect on a Gate line unit due to Open between bus line inside the Panel
Dotted Line : Circuited short between Data line & Gate line.
Crosstalk : 1 - HORIZONTAL CROSSTALK
transmissivity changing caused by difference of electrical charge

2 - VERTICAL CROSSTALK DATA-PIXEL ITO COUPLING, TFT leakage characteristic
Pixel Defect : Conductive Particle during TFT process,  Conductive Particle during TFT process, S/D Channel Short
Glass Broken : Handling:- 1 - panel drop, 2 - Over stress while assemble
White Display : Power section failure
Black Display : Controller circuitry scan or data IC
Flicker : Due to frequency mismatch
Abnormal Display : controller IC, Data or Scan IC failure
V-half Display : Data IC failure
H-half Display : Scan IC failure
Back Light Particle : Open between panel and outer casing
Scale Defect : Controller IC
 

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