JPS575030A - Liquid crystal display device - Google Patents
Liquid crystal display deviceInfo
- 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
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.
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5425750A (en) * | 1977-07-28 | 1979-02-26 | Citizen Watch Co Ltd | Liquid crystal display device |
-
1980
- 1980-06-12 JP JP7928080A patent/JPS575030A/en active Pending
Patent Citations (1)
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)
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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