JPS575030A - Liquid crystal display device - Google Patents

Liquid crystal display device

Info

Publication number
JPS575030A
JPS575030A JP7928080A JP7928080A JPS575030A JP S575030 A JPS575030 A JP S575030A JP 7928080 A JP7928080 A JP 7928080A JP 7928080 A JP7928080 A JP 7928080A JP S575030 A JPS575030 A JP S575030A
Authority
JP
Japan
Prior art keywords
display
positive
electrode
segments
electrodes
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
JP7928080A
Other languages
Japanese (ja)
Inventor
Keiji Jinguu
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
Epson Corp
Original Assignee
Seiko Epson Corp
Epson 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 Seiko Epson Corp, Epson Corp filed Critical Seiko Epson Corp
Priority to JP7928080A priority Critical patent/JPS575030A/en
Publication of JPS575030A publication Critical patent/JPS575030A/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
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G02F1/134327—Segmented, e.g. alpha numeric display

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Liquid Crystal (AREA)
  • Geometry (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)

Abstract

PURPOSE:To perform positive display by nonlighted segments by providing display electrodes and a peripheral electrode by way of an insulation layer on one of the electrode substrates of a liquid crystal cells, and selectively applying voltage to the peripheral electrode and the nondisplay segments. CONSTITUTION:The surface of the display electrodes consisting of the segment electrodes and lead electrodes provided on an upper substrate are covered with an insulation layer, and a peripheral electrode 13 is provided thereon over the entire surface excluding the segment parts. A counter electrode 14 is provided to a lower substrate, and voltage is applied between the nondisplay segments and the counter electrode 14 and between the peripheral electrode 13 and the counter electrode 14, whereby positive display is accomplished while the display elements are kept in a nonlighted state. Since this simply necessitates the adaption of the horizontal orientation treatment which has been technically established by using nematic liquid crystals having positive dielectric anisotropy and dyes having positive dichromaticity, the positive display of high reliability free from coloring in the lead wire parts is obtained with the substantially negative display liquid crystal cell.
JP7928080A 1980-06-12 1980-06-12 Liquid crystal display device Pending JPS575030A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7928080A JPS575030A (en) 1980-06-12 1980-06-12 Liquid crystal display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7928080A JPS575030A (en) 1980-06-12 1980-06-12 Liquid crystal display device

Publications (1)

Publication Number Publication Date
JPS575030A true JPS575030A (en) 1982-01-11

Family

ID=13685449

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7928080A Pending JPS575030A (en) 1980-06-12 1980-06-12 Liquid crystal display device

Country Status (1)

Country Link
JP (1) JPS575030A (en)

Cited By (1)

* 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

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5425750A (en) * 1977-07-28 1979-02-26 Citizen Watch Co Ltd Liquid crystal display device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5425750A (en) * 1977-07-28 1979-02-26 Citizen Watch Co Ltd Liquid crystal display device

Cited By (3)

* 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

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