CA2138699C - Panneaux d'affichage sans encre - Google Patents

Panneaux d'affichage sans encre

Info

Publication number
CA2138699C
CA2138699C CA 2138699 CA2138699A CA2138699C CA 2138699 C CA2138699 C CA 2138699C CA 2138699 CA2138699 CA 2138699 CA 2138699 A CA2138699 A CA 2138699A CA 2138699 C CA2138699 C CA 2138699C
Authority
CA
Canada
Prior art keywords
display
panel
display elements
writing device
base substrate
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 - Fee Related
Application number
CA 2138699
Other languages
English (en)
Other versions
CA2138699A1 (fr
Inventor
See Man Hom
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA 2138699 priority Critical patent/CA2138699C/fr
Publication of CA2138699A1 publication Critical patent/CA2138699A1/fr
Application granted granted Critical
Publication of CA2138699C publication Critical patent/CA2138699C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
    • B43L1/004—Repeatedly-usable boards or tablets for writing or drawing with illuminating devices
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B5/00—Electrically-operated educational appliances
    • G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Drawing Aids And Blackboards (AREA)
CA 2138699 1994-12-21 1994-12-21 Panneaux d'affichage sans encre Expired - Fee Related CA2138699C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2138699 CA2138699C (fr) 1994-12-21 1994-12-21 Panneaux d'affichage sans encre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2138699 CA2138699C (fr) 1994-12-21 1994-12-21 Panneaux d'affichage sans encre

Publications (2)

Publication Number Publication Date
CA2138699A1 CA2138699A1 (fr) 1996-06-22
CA2138699C true CA2138699C (fr) 1997-04-08

Family

ID=4154897

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2138699 Expired - Fee Related CA2138699C (fr) 1994-12-21 1994-12-21 Panneaux d'affichage sans encre

Country Status (1)

Country Link
CA (1) CA2138699C (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7224347B2 (en) * 2002-05-09 2007-05-29 Hewlett-Packard Development Company, L.P. Writeboard method and apparatus
WO2018049944A1 (fr) * 2016-09-17 2018-03-22 Shenzhen GOODIX Technology Co., Ltd. Module de capteur optique de sous-écran permettant la détection d'empreintes digitales sur écran
CN110599808A (zh) * 2019-01-10 2019-12-20 桂振杰 一种英语单词线条记忆装置及使用方法
CN114435007A (zh) * 2022-03-23 2022-05-06 吴艳红 一种智能型计算机技术展示装置

Also Published As

Publication number Publication date
CA2138699A1 (fr) 1996-06-22

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed