CA2244439C - Feuille d'ajustement de la lumiere ayant une surface sinusoidale et une surface a aplatissement non-optique utilisable avec un afficheur a cristaux liquides - Google Patents

Feuille d'ajustement de la lumiere ayant une surface sinusoidale et une surface a aplatissement non-optique utilisable avec un afficheur a cristaux liquides Download PDF

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Publication number
CA2244439C
CA2244439C CA002244439A CA2244439A CA2244439C CA 2244439 C CA2244439 C CA 2244439C CA 002244439 A CA002244439 A CA 002244439A CA 2244439 A CA2244439 A CA 2244439A CA 2244439 C CA2244439 C CA 2244439C
Authority
CA
Canada
Prior art keywords
light
convex
concave
lighting device
adjusting sheet
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.)
Expired - Fee Related
Application number
CA002244439A
Other languages
English (en)
Inventor
Tomohiro Yokota
Fumio Nishitani
Hiroshi Ogawara
Akihito Kubo
Makoto Fujigami
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.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical Co Ltd
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 JP4011864A external-priority patent/JP2723414B2/ja
Priority claimed from JP4114781A external-priority patent/JP2705868B2/ja
Priority claimed from JP4199576A external-priority patent/JPH0643310A/ja
Application filed by Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority claimed from CA002088113A external-priority patent/CA2088113C/fr
Application granted granted Critical
Publication of CA2244439C publication Critical patent/CA2244439C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Liquid Crystal (AREA)
  • Optical Elements Other Than Lenses (AREA)
CA002244439A 1992-01-27 1993-01-26 Feuille d'ajustement de la lumiere ayant une surface sinusoidale et une surface a aplatissement non-optique utilisable avec un afficheur a cristaux liquides Expired - Fee Related CA2244439C (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP11864/92 1992-01-27
JP4011864A JP2723414B2 (ja) 1992-01-27 1992-01-27 面状発光装置
JP4114781A JP2705868B2 (ja) 1992-05-07 1992-05-07 面状発光装置用調光シートおよびこれを備えた液晶表示装置
JP114781/92 1992-05-07
JP199576/92 1992-07-27
JP4199576A JPH0643310A (ja) 1992-07-27 1992-07-27 面光源装置用フィルム又はシート
CA002088113A CA2088113C (fr) 1992-01-27 1993-01-26 Feuille de reglage de l'eclairement pour dispositif d'eclairage planar et dispositif d'eclairage planar et afficheur a cristaux liquides utilisant cette feuille

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002088113A Division CA2088113C (fr) 1992-01-27 1993-01-26 Feuille de reglage de l'eclairement pour dispositif d'eclairage planar et dispositif d'eclairage planar et afficheur a cristaux liquides utilisant cette feuille

Publications (1)

Publication Number Publication Date
CA2244439C true CA2244439C (fr) 2000-08-08

Family

ID=29424563

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002244439A Expired - Fee Related CA2244439C (fr) 1992-01-27 1993-01-26 Feuille d'ajustement de la lumiere ayant une surface sinusoidale et une surface a aplatissement non-optique utilisable avec un afficheur a cristaux liquides

Country Status (1)

Country Link
CA (1) CA2244439C (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7719635B2 (en) 2006-06-21 2010-05-18 Fujifilm Corporation Optical sheet and manufacturing method thereof, backlight, liquid crystal display
JP2012199063A (ja) * 2011-03-22 2012-10-18 Toppan Printing Co Ltd 照明装置及びそれを備えた液晶ディスプレイ装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7719635B2 (en) 2006-06-21 2010-05-18 Fujifilm Corporation Optical sheet and manufacturing method thereof, backlight, liquid crystal display
JP2012199063A (ja) * 2011-03-22 2012-10-18 Toppan Printing Co Ltd 照明装置及びそれを備えた液晶ディスプレイ装置

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MKLA Lapsed

Effective date: 20130128