JPS56101278A - Input and output display unit of flat plate graph - Google Patents

Input and output display unit of flat plate graph

Info

Publication number
JPS56101278A
JPS56101278A JP308480A JP308480A JPS56101278A JP S56101278 A JPS56101278 A JP S56101278A JP 308480 A JP308480 A JP 308480A JP 308480 A JP308480 A JP 308480A JP S56101278 A JPS56101278 A JP S56101278A
Authority
JP
Japan
Prior art keywords
input
graph
liquid crystal
layer
fed
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
JP308480A
Other languages
Japanese (ja)
Inventor
Akira Ishii
Takashi Kaneko
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP308480A priority Critical patent/JPS56101278A/en
Publication of JPS56101278A publication Critical patent/JPS56101278A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/043—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using propagating acoustic waves
    • G06F3/0433—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using propagating acoustic waves in which the acoustic waves are either generated by a movable member and propagated within a surface layer or propagated within a surface layer and captured by a movable member

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)

Abstract

PURPOSE:To obtain a monitor display of graph in small size at low cost, by enabling to display a manual graph information on a liquid crystal display plate incorporated with a graph input tablet with a small sized recording mechanism. CONSTITUTION:When voltage pulses are alternately fed to piezoelectric conversion elements 3,3', surface acoustic waves propagate the acryl plate 1 from the elements 3,3', it reaches the input pen 2 and it is detected as electric signal. While this, based on the speed of elastic waves, the distance of the pen 2 from the elements 3,3', that is, the coordinates of the input graph is obtained. The coordinate information detected is immediately fed to the drive mechanism of the light emitting element 12, to move the element 12 to the coordinate input point, and near-infrared ray 13 is illuminated by adding a light emitting drive pulse voltage to the element 12. Thus, the liquid crystal layer 6 near the electrode is rapidly heated, and the liquid crystal subject to heating is changed to the state scattering the light. As the result, the input coordinate point is recorded on the layer 6 to erase this written graph, closing the switch 11, and AC voltage is fed to the layer 6.
JP308480A 1980-01-17 1980-01-17 Input and output display unit of flat plate graph Pending JPS56101278A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP308480A JPS56101278A (en) 1980-01-17 1980-01-17 Input and output display unit of flat plate graph

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP308480A JPS56101278A (en) 1980-01-17 1980-01-17 Input and output display unit of flat plate graph

Publications (1)

Publication Number Publication Date
JPS56101278A true JPS56101278A (en) 1981-08-13

Family

ID=11547468

Family Applications (1)

Application Number Title Priority Date Filing Date
JP308480A Pending JPS56101278A (en) 1980-01-17 1980-01-17 Input and output display unit of flat plate graph

Country Status (1)

Country Link
JP (1) JPS56101278A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4665282A (en) * 1984-07-25 1987-05-12 Hitachi, Ltd. Tablet type coordinate input apparatus using elastic wave
CN109932834A (en) * 2017-12-15 2019-06-25 江苏集萃智能液晶科技有限公司 A kind of selective erase liquid crystal handwriting board device and forming method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4665282A (en) * 1984-07-25 1987-05-12 Hitachi, Ltd. Tablet type coordinate input apparatus using elastic wave
CN109932834A (en) * 2017-12-15 2019-06-25 江苏集萃智能液晶科技有限公司 A kind of selective erase liquid crystal handwriting board device and forming method thereof
CN109932834B (en) * 2017-12-15 2022-03-11 江苏集萃智能液晶科技有限公司 Device for locally erasing liquid crystal handwriting board and forming method thereof

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