Patent ID: 9040115
Filing Date: 2015-05-26
Classification: C09K,G02B,G02F,Y10T

Abstract:
1. A method of producing a negative C-type retardation compensator for a liquid crystal display, comprising the steps of: 1) preparing a transparent base layer; and 2) forming a polyarylate coating layer by coating a polyarylate solution having a thio group or a sulfur oxide group in a polymer main chain thereof on the transparent base layer of step 1, wherein the polyarylate which has the thio group or the sulfur oxide group in the polymer main chain of step 2 is represented by Formula 1; wherein, a, b, c, and d are each independently an integer of 0, or 1 to 4, m and n are molar fractions, m+n=1, 0≦m≦1, and 0.001≦n≦0.4, R R W W