위상차층 부착 편광판 및 해당 위상차층 부착 편광판을 포함하는 화상 표시 장치

• Main Authors: HAYASHI DAISUKE, NAGATA MIZUE, FUJIMOTO NAOKI, SENDA HIROKI
• Format: Patent
• Language: Korean
• Published: 05.08.2024
• Subjects: ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DYES; ELECTRICITY; FREQUENCY-CHANGING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-LINEAR OPTICS; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PERFORMING OPERATIONS; PHYSICS; POLISHES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF MATERIALS AS ADHESIVES

본 발명은, 고온 내구성이 우수한 위상차층 부착 편광판을 제공하는 것이다. 본 발명의 실시형태의 위상차층 부착 편광판은, 편광자를 포함하는 편광판과, 제1 점착제층과, 위상차층과, 제2 점착제층을 이 순서대로 포함하고, 상기 제1 점착제층의 80℃ 저장 탄성률 G'1과, 상기 제2 점착제층의 80℃ 저장 탄성률 G'2가, G'1/G'2≤1, 또한 G'1>-0.85×G'2+1.4×105를 만족한다. The present invention provides a polarizing plate with a retardation layer, the polarizing plate having excellent durability at high temperatures. A polarizing plate with a retardation layer according to one embodiment of the present invention sequentially comprises a polarizing plate comprising a polarizer, a first adhesive layer, a retardation layer and a second adhesive layer in this order; and the storage elastic modulus G'1 at 80°C of the first adhesive layer and the storage elastic modulus G'2 at 80°C of the second adhesive layer satisfy G'1/G'2 ≤ 1 and G'1 > (-0.85 × G'2 + 1.4 × 105).