JPH0412388A - Illumination light reflection preventing mechanism in display of emission system - Google Patents

Illumination light reflection preventing mechanism in display of emission system

Info

Publication number
JPH0412388A
JPH0412388A JP11563390A JP11563390A JPH0412388A JP H0412388 A JPH0412388 A JP H0412388A JP 11563390 A JP11563390 A JP 11563390A JP 11563390 A JP11563390 A JP 11563390A JP H0412388 A JPH0412388 A JP H0412388A
Authority
JP
Japan
Prior art keywords
display
polarizing filter
illumination
emission system
polarizing
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.)
Granted
Application number
JP11563390A
Other versions
JPH0634140B2 (en
Inventor
Toshihiro Hara
Toshihisa Kanda
Toshiyuki Kondo
Atsushi Nakagawa
Yuji Sagara
Fujitaka Taguchi
Original Assignee
Tokyo Gas 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
Application filed by Tokyo Gas Co Ltd filed Critical Tokyo Gas Co Ltd
Priority to JP11563390A priority Critical patent/JPH0634140B2/en
Publication of JPH0412388A publication Critical patent/JPH0412388A/en
Publication of JPH0634140B2 publication Critical patent/JPH0634140B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE: To sufficiently obtain an illumination light reflection preventing effect without modifying a light source for illumination itself by utilizing two polarizing filters reasonably.
CONSTITUTION: A first polarizing filter 3 is arranged so as to set light in a direction of display 2 of emission system as P-polarized light at a light source 1 for illumination side, and also, a second polarizing filter 5 is arranged at the front plane side of the display plane 4 of the display 2 of emission system so as to set the incident angle of the P-polarized light passing the first polarizing filter 3 as a Blewster's angle by making a polarizing direction intersect orthogonally to that of the first polarizing filter 3. Since the filter is arranged so as to set the incident angle θ of the P-polarized light 6b as the Brewster's angle, no reflection on the surface of the second polarizing filter 5 occurs, and also, the P-polarized light 6b is absorbed in the second polarizing filter 5, not arriving at the display plane 4 of the display 2. In such a way, display information on the display plane 4 can be obtained from the front plane 8 side of the second polarizing filter 5 without reflection on the light source 1 for illumination from the display plane 4.
COPYRIGHT: (C)1992,JPO&Japio
JP11563390A 1990-05-01 1990-05-01 Illumination light reflection prevention mechanism in light emitting display Expired - Lifetime JPH0634140B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11563390A JPH0634140B2 (en) 1990-05-01 1990-05-01 Illumination light reflection prevention mechanism in light emitting display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11563390A JPH0634140B2 (en) 1990-05-01 1990-05-01 Illumination light reflection prevention mechanism in light emitting display

Publications (2)

Publication Number Publication Date
JPH0412388A true JPH0412388A (en) 1992-01-16
JPH0634140B2 JPH0634140B2 (en) 1994-05-02

Family

ID=14667478

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11563390A Expired - Lifetime JPH0634140B2 (en) 1990-05-01 1990-05-01 Illumination light reflection prevention mechanism in light emitting display

Country Status (1)

Country Link
JP (1) JPH0634140B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0778440A3 (en) * 1995-12-05 1998-08-26 Matsushita Electric Industrial Co., Ltd. Backlighting device and color display device
WO2009139261A1 (en) * 2008-05-15 2009-11-19 日東電工株式会社 Video image appreciation system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0778440A3 (en) * 1995-12-05 1998-08-26 Matsushita Electric Industrial Co., Ltd. Backlighting device and color display device
US5963280A (en) * 1995-12-05 1999-10-05 Matsushita Electric Industrial Co., Ltd. Backlighting device and color display device
US6144424A (en) * 1995-12-05 2000-11-07 Matsushita Electric Industrial Co., Ltd. Backlighting device
WO2009139261A1 (en) * 2008-05-15 2009-11-19 日東電工株式会社 Video image appreciation system
JP2009276574A (en) * 2008-05-15 2009-11-26 Nitto Denko Corp Video viewing facility

Also Published As

Publication number Publication date
JPH0634140B2 (en) 1994-05-02

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