user: Question: What is IPS-Provectus transmittance/contrast ratio?
Columns: ['Name', 'Nickname', 'Year', 'Advantage', 'Transmittance/ contrast ratio']
Types: ['text', 'text', 'real', 'text', 'text']
Sample row: ['Super TFT', 'IPS', 1996.0, 'Wide viewing angle', '100/100 Base level']
SQL:

assistant: SELECT "Transmittance/ contrast ratio" FROM "Table" WHERE "Name" = 'IPS-Provectus';