Title:
光学積層体及びこれを備えたタッチ入力装置
Document Type and Number:
Japanese Patent JP6732614
Kind Code:
B2
Abstract:
The invention provides an optical laminate structure that has outgassing resistance and step-height conformability and allows good visibility through a polarizing plate. The optical laminate structure L1 includes a first layer 100a that may cause outgassing, a second layer 100b, a step S, a retarder layer 200, a first adhesive layer 300a, and a second adhesive layer 300b. The step S is provided on at least one of the bonding faces of the first and second layers 100a and 100b. The first adhesive layer 300a bonds together the bonding face 101a of the first layer 100a and the first bonding face 201 of the retarder layer 200, and has such hardness that suppresses the outgassing in the interface between the first layer 100a and the first adhesive layer 201. The second adhesive layer 300b bonds together the bonding face 101b of the second layer 100b and the second bonding face 202 of the retarder layer 200. The second adhesive layer 300b is more flexible than the first adhesive layer 300a. The second adhesive layer 300b has such hardness as to get distorted by the step and thereby absorb height of the step.
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Inventors:
Masato Shimizu
Application Number:
JP2016181521A
Publication Date:
July 29, 2020
Filing Date:
September 16, 2016
Export Citation:
Assignee:
Hosiden Co., Ltd.
International Classes:
G06F3/041; C09J7/00; G02B5/30; G02F1/1333
Domestic Patent References:
| JP2015030765A | ||||
| JP2012017386A | ||||
| JP2015068956A | ||||
| JP2016130747A | ||||
| JP2013069072A | ||||
| JP2000111896A |
Attorney, Agent or Firm:
Masao Onishi