Patent ID: 7961275

Claim:
An in-plane switching liquid crystal display device, comprising: a liquid crystal display panel having first and second substrates and a liquid crystal layer therebetween, wherein pixel and common electrodes are formed on an inner surface of the first substrate; a first polarizer disposed over an outer surface of the first substrate of the liquid crystal display panel and having a first protective film, a first polarizing film, and a second protective film; a second polarizer disposed over an outer surface of the second substrate of the liquid crystal display panel and having a third protective film, a second polarizing film, and a fourth protective film; and a first optical compensation film between the first polarizer and the liquid crystal display panel, the third protective film being adjacent to the liquid crystal display panel and having a retardation value ranging from −10 nanometers to +10 nanometers in the thickness direction, wherein the third protective film is formed of triacetylcellulose.