GB2192084B - Planar light emitting device - Google Patents

Planar light emitting device

Info

Publication number
GB2192084B
GB2192084B GB8705784A GB8705784A GB2192084B GB 2192084 B GB2192084 B GB 2192084B GB 8705784 A GB8705784 A GB 8705784A GB 8705784 A GB8705784 A GB 8705784A GB 2192084 B GB2192084 B GB 2192084B
Authority
GB
United Kingdom
Prior art keywords
light emitting
emitting device
planar light
planar
light
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
GB8705784A
Other versions
GB2192084A (en
GB8705784D0 (en
Inventor
Toshiya Inubushi
Shigeyuki Yoshida
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of GB8705784D0 publication Critical patent/GB8705784D0/en
Publication of GB2192084A publication Critical patent/GB2192084A/en
Application granted granted Critical
Publication of GB2192084B publication Critical patent/GB2192084B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/22—Illumination; Arrangements for improving the visibility of characters on dials

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
  • Light Guides In General And Applications Therefor (AREA)
GB8705784A 1986-06-30 1987-03-11 Planar light emitting device Expired - Fee Related GB2192084B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61153356A JP2755941B2 (en) 1986-06-30 1986-06-30 Surface emitting device

Publications (3)

Publication Number Publication Date
GB8705784D0 GB8705784D0 (en) 1987-04-15
GB2192084A GB2192084A (en) 1987-12-31
GB2192084B true GB2192084B (en) 1990-12-12

Family

ID=15560672

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8705784A Expired - Fee Related GB2192084B (en) 1986-06-30 1987-03-11 Planar light emitting device

Country Status (4)

Country Link
JP (1) JP2755941B2 (en)
AU (1) AU595588B2 (en)
CA (1) CA1289534C (en)
GB (1) GB2192084B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0310889A3 (en) * 1987-10-09 1991-07-03 Andreas Peiker Display device comprising a plurality of light sources
GB2222293B (en) * 1988-08-24 1992-06-17 Stc Plc Backlight for radio pager lcd
DE3834492A1 (en) * 1988-10-11 1990-04-12 Langmatz Lic Gmbh LIGHT INDICATOR
DE4125034A1 (en) * 1991-07-29 1993-02-04 Telefunken Electronic Gmbh Illumination module for transmissive type LCD display - has plastic block providing optical transmission of daylight and artificial light to illuminate directly and indirectly
JPH0772815A (en) * 1992-12-15 1995-03-17 Koito Mfg Co Ltd Liquid crystal display device
DE4339314C2 (en) * 1993-11-18 2001-05-17 Mannesmann Vdo Ag Display unit, in particular combination instrument
GB2334807A (en) * 1998-02-27 1999-09-01 Nokia Mobile Phones Ltd Display assembly
JP2002169149A (en) * 2000-12-01 2002-06-14 Mitsubishi Electric Corp Reflection-type liquid crystal display
GB2374235B (en) * 2000-12-29 2004-09-22 Nokia Mobile Phones Ltd A casing
US7711400B2 (en) 2000-12-29 2010-05-04 Vertu Limited Casing
US7006349B2 (en) 2000-12-29 2006-02-28 Vertu Limited Casing
WO2002054721A1 (en) 2000-12-29 2002-07-11 Vertu Ltd A casing
US6925313B2 (en) 2001-02-07 2005-08-02 Hyundai Curitel Inc. Folder-type mobile communication terminal having double-sided LCD
US6950680B2 (en) * 2001-09-17 2005-09-27 Nokia Corporation Electronic device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3863246A (en) * 1973-07-09 1975-01-28 Collins Radio Co Backlighted display apparatus for preventing direct viewing of light sources
GB2121583A (en) * 1982-05-31 1983-12-21 Japan Engine Valve Mfg Liquid crystal display device
GB2161309A (en) * 1984-07-03 1986-01-08 Hewlett Packard Co Apparatus for illuminating a liquid crystal display

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2707081A1 (en) * 1977-02-18 1978-08-24 Ackeret Design Studios OPTICAL NUMBER SEGMENT DISPLAY
JPS53104197A (en) * 1977-02-23 1978-09-11 Stanley Electric Co Ltd Miniature illuminator
JPS59186882U (en) * 1983-05-30 1984-12-11 株式会社小糸製作所 indicator
JPS6136911U (en) * 1984-08-08 1986-03-07 スタンレー電気株式会社 lighting equipment
JPS61217084A (en) * 1985-03-22 1986-09-26 三菱レイヨン・エンジニアリング株式会社 Image display unit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3863246A (en) * 1973-07-09 1975-01-28 Collins Radio Co Backlighted display apparatus for preventing direct viewing of light sources
GB2121583A (en) * 1982-05-31 1983-12-21 Japan Engine Valve Mfg Liquid crystal display device
GB2161309A (en) * 1984-07-03 1986-01-08 Hewlett Packard Co Apparatus for illuminating a liquid crystal display

Also Published As

Publication number Publication date
JP2755941B2 (en) 1998-05-25
CA1289534C (en) 1991-09-24
AU6973687A (en) 1988-01-07
JPS638718A (en) 1988-01-14
GB2192084A (en) 1987-12-31
AU595588B2 (en) 1990-04-05
GB8705784D0 (en) 1987-04-15

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 19951108

PCNP Patent ceased through non-payment of renewal fee

Effective date: 19960311