GB2083261B - Electrochromic display device and a method of driving the same - Google Patents

Electrochromic display device and a method of driving the same

Info

Publication number
GB2083261B
GB2083261B GB8125454A GB8125454A GB2083261B GB 2083261 B GB2083261 B GB 2083261B GB 8125454 A GB8125454 A GB 8125454A GB 8125454 A GB8125454 A GB 8125454A GB 2083261 B GB2083261 B GB 2083261B
Authority
GB
United Kingdom
Prior art keywords
electrodes
display
display device
electrode group
during
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.)
Expired
Application number
GB8125454A
Other versions
GB2083261A (en
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 Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Instruments Inc filed Critical Seiko Instruments Inc
Publication of GB2083261A publication Critical patent/GB2083261A/en
Application granted granted Critical
Publication of GB2083261B publication Critical patent/GB2083261B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/04—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions
    • G09G3/16—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments using a combination of such display devices for composing words, rows or the like, in a frame with fixed character positions by control of light from an independent source

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)

Abstract

An electrochromic display device, e.g. in an electronic timepiece, comprises a driver (19) for transferring coloration electric charge from a first display electrode group to a second display electrode group by applying a voltage therebetween. During the memory period between display changes, transfer signal generator (18) controlled by a transfer control signal generator (17) applies an auxiliary positive signal to the bleached electrodes and a negative signal to the coloured electrodes, whereby degradation of the display (20) during a memory period is prevented. Some of the electrodes may be dummies, screened from view, to allow the total coloured area to remain constant. <IMAGE>
GB8125454A 1980-08-27 1981-08-20 Electrochromic display device and a method of driving the same Expired GB2083261B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55117886A JPS5742091A (en) 1980-08-27 1980-08-27 Method of driving electrochromatic display unit

Publications (2)

Publication Number Publication Date
GB2083261A GB2083261A (en) 1982-03-17
GB2083261B true GB2083261B (en) 1984-08-08

Family

ID=14722655

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8125454A Expired GB2083261B (en) 1980-08-27 1981-08-20 Electrochromic display device and a method of driving the same

Country Status (4)

Country Link
JP (1) JPS5742091A (en)
CH (1) CH651171GA3 (en)
FR (1) FR2489569A1 (en)
GB (1) GB2083261B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58114020A (en) * 1981-12-28 1983-07-07 Citizen Watch Co Ltd Driving system for all solid-state complementary type electrochromic display element
FR2541027A1 (en) * 1983-02-16 1984-08-17 Commissariat Energie Atomique MATRIX IMAGER WITH DEVICE FOR COMPENSATING COUPLING BETWEEN LINES AND COLUMNS
US7411141B2 (en) 2005-03-17 2008-08-12 Asahi Denso Co., Ltd. Combination switch

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH614595B (en) * 1975-07-02 Citizen Watch Co Ltd PROCEDURE AND CIRCUIT FOR EXCITING AN ELECTROCHROMATIC DISPLAY.
JPS6024479B2 (en) * 1977-04-04 1985-06-13 シャープ株式会社 Display device drive method
JPS569791A (en) * 1979-07-04 1981-01-31 Seiko Instr & Electronics Drive circuit for electroochromism

Also Published As

Publication number Publication date
FR2489569B1 (en) 1984-07-20
CH651171GA3 (en) 1985-09-13
FR2489569A1 (en) 1982-03-05
JPS5742091A (en) 1982-03-09
GB2083261A (en) 1982-03-17

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 19940607

PCNP Patent ceased through non-payment of renewal fee

Effective date: 19950820