Teb: Feem ntau, sab laug thiab sab xis yog symmetrical rau ib leeg, thiab sab saum toj thiab hauv qab yog asymmetrical. Passive matrix cov lus pom muaj lub kaum sab xis me me, thiab TFT-hom kua siv lead ua saib cov ces kaum kuj loj dua. Tam sim no dav saib lub kaum sab xis tshuab tau ua tiav lub kaum sab xis ntawm 170 ° nce thiab nqis, sab laug thiab sab xis.
