JPS54102899A - Liquid crystal display unit - Google Patents

Liquid crystal display unit

Info

Publication number
JPS54102899A
JPS54102899A JP824378A JP824378A JPS54102899A JP S54102899 A JPS54102899 A JP S54102899A JP 824378 A JP824378 A JP 824378A JP 824378 A JP824378 A JP 824378A JP S54102899 A JPS54102899 A JP S54102899A
Authority
JP
Japan
Prior art keywords
liquid crystal
crystal display
display unit
damage
life
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.)
Pending
Application number
JP824378A
Other languages
Japanese (ja)
Inventor
Hiroshige Tanaka
Kozo Odawara
Tadashi Ishibashi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP824378A priority Critical patent/JPS54102899A/en
Priority to GB7903026A priority patent/GB2013954A/en
Publication of JPS54102899A publication Critical patent/JPS54102899A/en
Pending 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
    • G02F1/133617—Illumination with ultraviolet light; Luminescent elements or materials associated to the cell

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

PURPOSE: To easily establish night display without damage, by placing the reflection plate coating radioactive isotope at the back of the straight line polarized plate at the rear side of nematic liquid crystal display element.
CONSTITUTION: The surface of the reflection plate 9 coating the fluorescent substance 8 including the radioactive isotope, prometium 147(P147 m) is provided with the protective film 7 for the surface, and it is located at the back of the straightline polarized plate at the rear side of the display element 1. P147 m radiates only β rays without radiant contamination, and it si suitable for the life of product using conventional liquid crystal display device for the half-life, an since it is not gas, no fear to damage the package, easy manufacture, and ease of maintenance for night usage can be established.
COPYRIGHT: (C)1979,JPO&Japio
JP824378A 1978-01-30 1978-01-30 Liquid crystal display unit Pending JPS54102899A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP824378A JPS54102899A (en) 1978-01-30 1978-01-30 Liquid crystal display unit
GB7903026A GB2013954A (en) 1978-01-30 1979-01-29 Liquid crystal display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP824378A JPS54102899A (en) 1978-01-30 1978-01-30 Liquid crystal display unit

Publications (1)

Publication Number Publication Date
JPS54102899A true JPS54102899A (en) 1979-08-13

Family

ID=11687695

Family Applications (1)

Application Number Title Priority Date Filing Date
JP824378A Pending JPS54102899A (en) 1978-01-30 1978-01-30 Liquid crystal display unit

Country Status (2)

Country Link
JP (1) JPS54102899A (en)
GB (1) GB2013954A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4678285A (en) * 1984-01-13 1987-07-07 Ricoh Company, Ltd. Liquid crystal color display device
US4799771A (en) * 1985-01-22 1989-01-24 Sharp Kabushiki Kaisha Liquid crystal display with stopper pins in guide means
KR0181985B1 (en) * 1993-06-07 1999-05-01 가시오 가즈오 Reflective liquid crystal display device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50131797A (en) * 1974-04-04 1975-10-18

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50131797A (en) * 1974-04-04 1975-10-18

Also Published As

Publication number Publication date
GB2013954A (en) 1979-08-15

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