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WO2009011226A1 - Method for producing optical film, optical film, and backlight unit using the same - Google Patents

Method for producing optical film, optical film, and backlight unit using the same Download PDF

Info

Publication number
WO2009011226A1
WO2009011226A1 PCT/JP2008/061974 JP2008061974W WO2009011226A1 WO 2009011226 A1 WO2009011226 A1 WO 2009011226A1 JP 2008061974 W JP2008061974 W JP 2008061974W WO 2009011226 A1 WO2009011226 A1 WO 2009011226A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical film
backlight unit
same
producing
film
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2008/061974
Other languages
French (fr)
Japanese (ja)
Inventor
Koji Tasaka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Konica Minolta Opto Inc
Original Assignee
Konica Minolta Opto 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
Application filed by Konica Minolta Opto Inc filed Critical Konica Minolta Opto Inc
Priority to JP2009523593A priority Critical patent/JPWO2009011226A1/en
Publication of WO2009011226A1 publication Critical patent/WO2009011226A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/14—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of indefinite length
    • B29C39/148—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of indefinite length characterised by the shape of the surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent

Landscapes

  • Optical Elements Other Than Lenses (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

Disclosed is a low-cost optical film which enables a backlight unit to have both high luminance and uniformity. Specifically disclosed is a method for producing an optical film, which is characterized in that the optical film is a resin film formed by melt casting and having a film thickness of 40-500 μm. This method is further characterized in that the resin film contains 0.1-40% by mass of a light-diffusing particle, and at least one side of the resin film is provided with a luminance unevenness compensating dot by inkjet in accordance with luminance unevenness in the backlight.
PCT/JP2008/061974 2007-07-13 2008-07-02 Method for producing optical film, optical film, and backlight unit using the same Ceased WO2009011226A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009523593A JPWO2009011226A1 (en) 2007-07-13 2008-07-02 Optical film manufacturing method, optical film, and backlight unit using the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-184164 2007-07-13
JP2007184164 2007-07-13

Publications (1)

Publication Number Publication Date
WO2009011226A1 true WO2009011226A1 (en) 2009-01-22

Family

ID=40259564

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/061974 Ceased WO2009011226A1 (en) 2007-07-13 2008-07-02 Method for producing optical film, optical film, and backlight unit using the same

Country Status (2)

Country Link
JP (1) JPWO2009011226A1 (en)
WO (1) WO2009011226A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100239789A1 (en) * 2006-08-31 2010-09-23 Konica Minolta Opto, Inc. Optical Film, Manufacturing Method for Optical Film, Polarizing Plate and Liquid Crystal Display Device
WO2012105294A1 (en) * 2011-01-31 2012-08-09 住友化学株式会社 Uv-curable inkjet ink for light guide plates, and light guide plate using same
JP2012158671A (en) * 2011-01-31 2012-08-23 Sumitomo Chemical Co Ltd Uv-curable inkjet ink for light guide plate, and light guide plate using the same
JP2013051188A (en) * 2011-08-31 2013-03-14 Toshiba Corp Method for evaluating discomfort glare, and discomfort glare evaluation program
JP2019186340A (en) * 2018-04-06 2019-10-24 日亜化学工業株式会社 Manufacturing method of light source device
WO2024111170A1 (en) * 2022-11-22 2024-05-30 恵和株式会社 Light-diffusing sheet, backlight unit, liquid crystal display device, and information apparatus

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07181308A (en) * 1993-12-21 1995-07-21 Sekisui Chem Co Ltd Dimmer sheet
JP2001172403A (en) * 1999-12-20 2001-06-26 Konica Corp Light-diffusing film and method for producing the same
JP2002022908A (en) * 2000-07-07 2002-01-23 Kimoto & Co Ltd Light diffusing sheet
JP2004170698A (en) * 2002-11-20 2004-06-17 Toyota Industries Corp Optical member, back light unit, and method for manufacturing optical member
JP2005117023A (en) * 2003-09-19 2005-04-28 Sony Corp Backlight device and liquid crystal display device
JP2007025150A (en) * 2005-07-14 2007-02-01 Seiko Epson Corp Optical sheet, backlight unit, electro-optical device, electronic apparatus, and optical sheet manufacturing method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07181308A (en) * 1993-12-21 1995-07-21 Sekisui Chem Co Ltd Dimmer sheet
JP2001172403A (en) * 1999-12-20 2001-06-26 Konica Corp Light-diffusing film and method for producing the same
JP2002022908A (en) * 2000-07-07 2002-01-23 Kimoto & Co Ltd Light diffusing sheet
JP2004170698A (en) * 2002-11-20 2004-06-17 Toyota Industries Corp Optical member, back light unit, and method for manufacturing optical member
JP2005117023A (en) * 2003-09-19 2005-04-28 Sony Corp Backlight device and liquid crystal display device
JP2007025150A (en) * 2005-07-14 2007-02-01 Seiko Epson Corp Optical sheet, backlight unit, electro-optical device, electronic apparatus, and optical sheet manufacturing method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100239789A1 (en) * 2006-08-31 2010-09-23 Konica Minolta Opto, Inc. Optical Film, Manufacturing Method for Optical Film, Polarizing Plate and Liquid Crystal Display Device
US8273273B2 (en) * 2006-08-31 2012-09-25 Konica Minolta Opto, Inc. Manufacturing method for optical film
WO2012105294A1 (en) * 2011-01-31 2012-08-09 住友化学株式会社 Uv-curable inkjet ink for light guide plates, and light guide plate using same
JP2012158671A (en) * 2011-01-31 2012-08-23 Sumitomo Chemical Co Ltd Uv-curable inkjet ink for light guide plate, and light guide plate using the same
JP2013051188A (en) * 2011-08-31 2013-03-14 Toshiba Corp Method for evaluating discomfort glare, and discomfort glare evaluation program
JP2019186340A (en) * 2018-04-06 2019-10-24 日亜化学工業株式会社 Manufacturing method of light source device
JP7048888B2 (en) 2018-04-06 2022-04-06 日亜化学工業株式会社 Manufacturing method of light source device
US11774049B2 (en) 2018-04-06 2023-10-03 Nichia Corporation Light source device
WO2024111170A1 (en) * 2022-11-22 2024-05-30 恵和株式会社 Light-diffusing sheet, backlight unit, liquid crystal display device, and information apparatus

Also Published As

Publication number Publication date
JPWO2009011226A1 (en) 2010-09-16

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