JPS5776530A - Liquid crystal display device - Google Patents

Liquid crystal display device

Info

Publication number
JPS5776530A
JPS5776530A JP55153149A JP15314980A JPS5776530A JP S5776530 A JPS5776530 A JP S5776530A JP 55153149 A JP55153149 A JP 55153149A JP 15314980 A JP15314980 A JP 15314980A JP S5776530 A JPS5776530 A JP S5776530A
Authority
JP
Japan
Prior art keywords
plate
polarizing plate
liquid crystal
display device
polarization
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
JP55153149A
Other languages
Japanese (ja)
Inventor
Satoru Yazawa
Koichi Oguchi
Kenichi Endo
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 JP55153149A priority Critical patent/JPS5776530A/en
Publication of JPS5776530A publication Critical patent/JPS5776530A/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
    • G02F1/133528—Polarisers
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/16—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 series; tandem

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 increase the panel contrast to the change of luminous intensity of atmosphere for a liquid crystal display device which makes use of a polarizing effect, by using both a fixed polarizing plate and a detachable polarizing plate. CONSTITUTION:Front and rear glass substrate 33 and 35 hold a liquid crystal layer 34 in-between. A rear polarizing plate 36 (about 43% single unit transmittance and about 95% of polarization) is stuck to the substrate 35; while a front polarizing plate 32 (about 49% single unit transmittance and about 80% of polarization) is stuck to the substrate 33 respectively. In addition, a front polarizing plate 31 (equal single unit transmittance, degree of polarization and direction of polarizing axis to the plate 32) is provided in a detachable way. Such display device is used with detachment of the plate 31 in a room of the ordinary illumination and with attachment of the plate 31 in a place of high luminous intensity such as the inside of a room of the bright illumination (or the outdoors) respectively. In such way, a high- contrast display is always ensured.
JP55153149A 1980-10-31 1980-10-31 Liquid crystal display device Pending JPS5776530A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55153149A JPS5776530A (en) 1980-10-31 1980-10-31 Liquid crystal display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55153149A JPS5776530A (en) 1980-10-31 1980-10-31 Liquid crystal display device

Publications (1)

Publication Number Publication Date
JPS5776530A true JPS5776530A (en) 1982-05-13

Family

ID=15556084

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55153149A Pending JPS5776530A (en) 1980-10-31 1980-10-31 Liquid crystal display device

Country Status (1)

Country Link
JP (1) JPS5776530A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6344686A (en) * 1986-08-12 1988-02-25 ソニー株式会社 Liquid crystal display device
JP2003084271A (en) * 2001-09-14 2003-03-19 Fujitsu Ltd Liquid crystal display

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6344686A (en) * 1986-08-12 1988-02-25 ソニー株式会社 Liquid crystal display device
JP2003084271A (en) * 2001-09-14 2003-03-19 Fujitsu Ltd Liquid crystal display
US6646698B2 (en) 2001-09-14 2003-11-11 Fujitsu Limited Liquid crystal display having a plurality of polarizing plates having the same polarization degree

Similar Documents

Publication Publication Date Title
JPS52125300A (en) Electronic optical display unit with lighting and its lighting method
DE69110361D1 (en) Liquid crystal display panel with reduced flicker.
EP0320011A3 (en) Image display apparatus
JPS5776530A (en) Liquid crystal display device
JPS5683801A (en) Cassette player with radio
JPS55160895A (en) Tn type liquid crystal display device
ATE46043T1 (en) LIQUID CRYSTAL DISPLAY.
JPS54141150A (en) Liquid crystal display device
EP0446351A4 (en) Transmission-type liquid crystal display device.
JPS5356000A (en) Reflective type liquid crystal display unit
JPS64904A (en) Backlight device
JPS5428597A (en) Liquid crystal display unit
GB2013954A (en) Liquid crystal display device
JPS56110903A (en) Magic mirror for decoration and sign
JPS6413121A (en) Liquid crystal display panel
JPS54144898A (en) Liquid crystal display unit
JPS562579A (en) Hybrid display electronic watch
JPS5624318A (en) Liquid crystal matrix display panel
JPS5793324A (en) Liquid crystal display device giving display pattern including black color
JPS5459162A (en) Liquid crystal display plate
JPS5542072A (en) Variable-hue timepiece with multiple colored layer
JPS5779481A (en) Electronic timepiece
GB1436085A (en) Liquid crystal display device
JPS5443698A (en) Liquid crystal display device
JPS5469399A (en) Liouid crystal display device