| abstract |
(57) [Summary] [Problem] To provide an inexpensive and high-quality method for producing a long polarizing film composed of an obliquely stretched polarizing film that can improve the yield in a polarizing plate punching process, and a polarizing plate and A liquid crystal display device is provided. A step of holding both ends of a polymer film for a polarizing film continuously supplied by a holding means, stretching the holding means while advancing the holding means in the longitudinal direction of the film, and a polarizer on the film A method for producing a polarizing film comprising a step of dyeing a polarizing film, wherein the polarizing film and the liquid crystal display device satisfy the specific stretching condition and the specific dyeing condition. |