JPS55146091A - Illumination unit for electronic watch - Google Patents

Illumination unit for electronic watch

Info

Publication number
JPS55146091A
JPS55146091A JP5365979A JP5365979A JPS55146091A JP S55146091 A JPS55146091 A JP S55146091A JP 5365979 A JP5365979 A JP 5365979A JP 5365979 A JP5365979 A JP 5365979A JP S55146091 A JPS55146091 A JP S55146091A
Authority
JP
Japan
Prior art keywords
illumination
color
layer
ino
printed
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
JP5365979A
Other languages
Japanese (ja)
Inventor
Masashi Akazawa
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 JP5365979A priority Critical patent/JPS55146091A/en
Publication of JPS55146091A publication Critical patent/JPS55146091A/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
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs

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)
  • Electric Clocks (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

PURPOSE: To establish the illumination unit easy to see and fashionable, by multi- color illumination through the use of two or more types of electroluminescence (EL) substance having different color generation.
CONSTITUTION: In the electronic watch illuminaton providing EL illumination body (also used for the reflection plate) 2 under the liquid crystal display body 1, the trnasparent electrode 2d such as InO is provided to the polyester base 2b, and the clear lacquer 2g scattering barium titanate powder is printed on base 2b to form the derivative layer 2g. Next, green color EL layer 2e and red color EL layer 2f are printed. Further, the polyester substrate 2a added with the transparent electrode 2c of InO is provided on the light emitting layers 2e, 2f. AC is applied to the electrodes 2c, 2d to cause the part A of the liquid crystal panel in green color for time display and in red color for the part B as weekday display, allowing multicolor illumination rich in the variety. The EL layers are provided up and down and transparent EL substance can be used.
COPYRIGHT: (C)1980,JPO&Japio
JP5365979A 1979-05-01 1979-05-01 Illumination unit for electronic watch Pending JPS55146091A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5365979A JPS55146091A (en) 1979-05-01 1979-05-01 Illumination unit for electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5365979A JPS55146091A (en) 1979-05-01 1979-05-01 Illumination unit for electronic watch

Publications (1)

Publication Number Publication Date
JPS55146091A true JPS55146091A (en) 1980-11-14

Family

ID=12948976

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5365979A Pending JPS55146091A (en) 1979-05-01 1979-05-01 Illumination unit for electronic watch

Country Status (1)

Country Link
JP (1) JPS55146091A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3541373A1 (en) * 1984-11-22 1986-05-22 Ricoh Co., Ltd., Tokio/Tokyo LIQUID CRYSTAL COLOR DISPLAY DEVICE
EP0884621A2 (en) * 1997-06-09 1998-12-16 Seiko Epson Corporation Electronic watch
EP0890867A2 (en) * 1997-07-09 1999-01-13 Seiko Epson Corporation Display for an electronic timepiece
US6185161B1 (en) * 1997-06-09 2001-02-06 Seiko Epson Corporation Display device and electronic timepiece
US6252829B1 (en) 1997-06-09 2001-06-26 Seiko Epson Corporation Electronic watch

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3541373A1 (en) * 1984-11-22 1986-05-22 Ricoh Co., Ltd., Tokio/Tokyo LIQUID CRYSTAL COLOR DISPLAY DEVICE
EP0884621A2 (en) * 1997-06-09 1998-12-16 Seiko Epson Corporation Electronic watch
EP0884621A3 (en) * 1997-06-09 1999-10-27 Seiko Epson Corporation Electronic watch
US6185161B1 (en) * 1997-06-09 2001-02-06 Seiko Epson Corporation Display device and electronic timepiece
US6252829B1 (en) 1997-06-09 2001-06-26 Seiko Epson Corporation Electronic watch
US6437840B1 (en) 1997-06-09 2002-08-20 Seiko Epson Corporation Display device having a light emitting element
EP0890867A2 (en) * 1997-07-09 1999-01-13 Seiko Epson Corporation Display for an electronic timepiece
EP0890867A3 (en) * 1997-07-09 2000-04-05 Seiko Epson Corporation Display for an electronic timepiece

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