Title:
自発光型表示体用又は直下型バックライト用の封止材シート、自発光型表示体、直下型バックライト
Document Type and Number:
Japanese Patent JP7156339
Kind Code:
B2
Abstract:
An encapsulant sheet suitable for encapsulating a light-emitting element in, for example, a self-luminous display or for direct backlights. The encapsulant sheet is a single-layer or multi-layer resin sheet that includes an adhesive layer exposed at a topmost surface. The Vicat softening point is greater than 60° C. and no higher than 100° C. The melt viscosity of the encapsulant sheet, at a shear velocity of 2.43×10 sec−1 and measured at a temperature of 120° C. is at least 5.0×104 poise and no more than 1.0×105 poise. The adhesive layer contains a polyolefin and a silane component, and a content of the silane component relative to the resin component of the adhesive layer is at least 0.03% by mass and less than 10% by mass.
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Inventors:
Junro Koki
Keita Aihara
Keita Aihara
Application Number:
JP2020109691A
Publication Date:
October 19, 2022
Filing Date:
June 25, 2020
Export Citation:
Assignee:
Dai Nippon Printing Co.,Ltd.
International Classes:
H01L33/56; B32B27/32; F21S2/00; G02F1/13357; H01L33/00
Domestic Patent References:
| JP6329330B1 | ||||
| JP6311832B1 | ||||
| JP2012175066A | ||||
| JP2015232651A | ||||
| JP2016078260A | ||||
| JP2015191944A | ||||
| JP2016195190A |
Foreign References:
| WO2016117268A1 | ||||
| WO2012145237A1 |
Attorney, Agent or Firm:
Masayuki Masabayashi
Tetsuo Shiba
Hayashi Kazuyoshi
Tetsuo Shiba
Hayashi Kazuyoshi