Display device having polarizing plates with protective films
View Patent ↗A display device having a pair of substrates provided so as to face each other and sandwich liquid crystal, and polarizing plates which are pasted to surfaces of the above described pair of substrates on the sides opposite to the above described liquid crystal, where the above described polarizing plates are formed of at least an inside protective film, a polarizing film and an outside protective film, which are layered on the above described substrate side in this order, an expansion axis of the above described outside protective films forms an angle of 30° or more and 90° or less with an expansion axis of the above described polarizing films, and an expansion axis of the above described inside protective films forms an angle of 0° or more and 3° or less with an expansion axis of the above described polarizing films.
1. A display device comprising:
a pair of substrates provided so as to face each other and sandwich liquid crystal, and polarizing plates which are pasted to surfaces of said pair of substrates on the sides opposite to said liquid crystal, wherein
said polarizing plates are formed of at least an inside protective film, a polarizing film and an outside protective film, which are layered on said substrate side in this order so that the inside protective film is adjacent to said substrate,
an expansion axis of said outside protective films forms an angle of 30° or more and 90° or less with an expansion axis of said polarizing films, and
an expansion axis of said inside protective films forms an angle of 0° or more and 3° or less with an expansion axis of said polarizing films.
2. The display device according to claim 1 , wherein said expansion axis of said inside protective films forms an angle of 0° or more and 1° or less with said expansion axis of said polarizing films.
3. The display device according to claim 1 , wherein said outside protective film is made of a film having a polyester resin as a main component.
4. The display device according to claim 1 , wherein a phase difference film forms a layer between said substrates and said inside protective films.