JPS5774724A - Liquid crystal display device - Google Patents

Liquid crystal display device

Info

Publication number
JPS5774724A
JPS5774724A JP55150953A JP15095380A JPS5774724A JP S5774724 A JPS5774724 A JP S5774724A JP 55150953 A JP55150953 A JP 55150953A JP 15095380 A JP15095380 A JP 15095380A JP S5774724 A JPS5774724 A JP S5774724A
Authority
JP
Japan
Prior art keywords
light
incident
incident light
blackened
guest
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
JP55150953A
Other languages
Japanese (ja)
Inventor
Norihisa Okamoto
Tomio Sonehara
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP55150953A priority Critical patent/JPS5774724A/en
Publication of JPS5774724A publication Critical patent/JPS5774724A/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
    • G02F1/133509—Filters, e.g. light shielding masks

Landscapes

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

Abstract

PURPOSE:To always obtain a contrast easy to see under all conditions by setting a layer for regulating the quantity of incident light by changing the transmittance in reciprocal proportion to the quantity of received light in front of a display section. CONSTITUTION:In case of a dark atmosphere (a) incident light 18 is made incident to a guest-host display layer 20 with little attenuation through photochromic glass 19 which is blackened by the sensitization of silver halide microcrystals on being irradiated with ultraviolet rays and returns to the original state as the quantity of ultraviolet rays is reduced. On the other hand, in case of a light atmosphere (b) incident light 21 is made incident to the guest-host display layer after being attenuated by about 50% through blackened photochromic glass 22, so the contrast is made higher.
JP55150953A 1980-10-28 1980-10-28 Liquid crystal display device Pending JPS5774724A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55150953A JPS5774724A (en) 1980-10-28 1980-10-28 Liquid crystal display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55150953A JPS5774724A (en) 1980-10-28 1980-10-28 Liquid crystal display device

Publications (1)

Publication Number Publication Date
JPS5774724A true JPS5774724A (en) 1982-05-11

Family

ID=15508029

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55150953A Pending JPS5774724A (en) 1980-10-28 1980-10-28 Liquid crystal display device

Country Status (1)

Country Link
JP (1) JPS5774724A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0854832A (en) * 1994-06-10 1996-02-27 Nippondenso Co Ltd Transparent thin-film el display
TWI781392B (en) * 2019-04-18 2022-10-21 南韓商Ｌｇ化學股份有限公司 Polarization-variable element

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0854832A (en) * 1994-06-10 1996-02-27 Nippondenso Co Ltd Transparent thin-film el display
TWI781392B (en) * 2019-04-18 2022-10-21 南韓商Ｌｇ化學股份有限公司 Polarization-variable element
US12050371B2 (en) 2019-04-18 2024-07-30 Lg Chem, Ltd. Polarization-variable element

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