WO2005052677A1 - Light diffusion film for lcd back-light unit - Google Patents

Light diffusion film for lcd back-light unit Download PDF

Info

Publication number
WO2005052677A1
WO2005052677A1 PCT/KR2004/002169 KR2004002169W WO2005052677A1 WO 2005052677 A1 WO2005052677 A1 WO 2005052677A1 KR 2004002169 W KR2004002169 W KR 2004002169W WO 2005052677 A1 WO2005052677 A1 WO 2005052677A1
Authority
WO
WIPO (PCT)
Prior art keywords
light diffusion
beads
light
film
weight
Prior art date
Application number
PCT/KR2004/002169
Other languages
English (en)
French (fr)
Inventor
Seung-Hwan Jung
Hyun-Jin Kim
Original Assignee
Kolon Industries Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020040063699A external-priority patent/KR100601759B1/ko
Application filed by Kolon Industries Inc. filed Critical Kolon Industries Inc.
Priority to JP2006541019A priority Critical patent/JP2007512573A/ja
Publication of WO2005052677A1 publication Critical patent/WO2005052677A1/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
    • G02B5/0226—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures having particles on the surface
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/0236—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element
    • G02B5/0242—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element by means of dispersed particles
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0273—Diffusing elements; Afocal elements characterized by the use
    • G02B5/0278—Diffusing elements; Afocal elements characterized by the use used in transmission

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Laminated Bodies (AREA)
PCT/KR2004/002169 2003-11-26 2004-08-30 Light diffusion film for lcd back-light unit WO2005052677A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006541019A JP2007512573A (ja) 2003-11-26 2004-08-30 液晶ディスプレイのバックライトユニット用光拡散フィルム

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2003-0084316 2003-11-26
KR20030084316 2003-11-26
KR1020040063699A KR100601759B1 (ko) 2003-11-26 2004-08-13 액정 디스플레이의 백라이트 유니트용 광확산필름
KR10-2004-0063699 2004-08-13

Publications (1)

Publication Number Publication Date
WO2005052677A1 true WO2005052677A1 (en) 2005-06-09

Family

ID=34635727

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2004/002169 WO2005052677A1 (en) 2003-11-26 2004-08-30 Light diffusion film for lcd back-light unit

Country Status (3)

Country Link
JP (1) JP2007512573A (ja)
TW (1) TWI261710B (ja)
WO (1) WO2005052677A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1775603A1 (en) * 2005-10-14 2007-04-18 Minoru Yoshida Light diffusion sheet and backlight unit using the same
EP2151878B1 (en) * 2008-07-15 2018-09-26 UDC Ireland Limited Method for producing a light emitting device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101705904B1 (ko) * 2010-11-02 2017-02-23 엘지디스플레이 주식회사 백라이트 유닛 및 이를 포함하는 액정표시장치
JP6046367B2 (ja) * 2011-04-12 2016-12-14 恵和株式会社 光学ユニット、バックライトユニット及び液晶表示装置
JP6647761B2 (ja) * 2015-12-07 2020-02-14 恵和株式会社 上用光拡散シート及びバックライトユニット

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1158314A1 (en) * 1999-02-05 2001-11-28 Fuji Photo Film Co., Ltd. Matlike high-transmittance film
US20020005924A1 (en) * 2000-05-16 2002-01-17 Kimoto Co., Ltd. Light diffusion sheet
WO2003005072A1 (en) * 2001-06-30 2003-01-16 Skc Co., Ltd. Light diffusing film

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1158314A1 (en) * 1999-02-05 2001-11-28 Fuji Photo Film Co., Ltd. Matlike high-transmittance film
US20020005924A1 (en) * 2000-05-16 2002-01-17 Kimoto Co., Ltd. Light diffusion sheet
WO2003005072A1 (en) * 2001-06-30 2003-01-16 Skc Co., Ltd. Light diffusing film

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1775603A1 (en) * 2005-10-14 2007-04-18 Minoru Yoshida Light diffusion sheet and backlight unit using the same
CN100420963C (zh) * 2005-10-14 2008-09-24 吉田实 光扩散片和采用该光扩散片的背照光单元
US8110276B2 (en) 2005-10-14 2012-02-07 Minoru Yoshida Light diffusion sheet and backlight unit using the same
EP2151878B1 (en) * 2008-07-15 2018-09-26 UDC Ireland Limited Method for producing a light emitting device

Also Published As

Publication number Publication date
JP2007512573A (ja) 2007-05-17
TWI261710B (en) 2006-09-11
TW200517746A (en) 2005-06-01

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