JPS5468116A - Input and output unit using liquid crystal display panel - Google Patents

Input and output unit using liquid crystal display panel

Info

Publication number
JPS5468116A
JPS5468116A JP13460977A JP13460977A JPS5468116A JP S5468116 A JPS5468116 A JP S5468116A JP 13460977 A JP13460977 A JP 13460977A JP 13460977 A JP13460977 A JP 13460977A JP S5468116 A JPS5468116 A JP S5468116A
Authority
JP
Japan
Prior art keywords
liquid crystal
crystal display
input
electrodes
display panel
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
JP13460977A
Other languages
Japanese (ja)
Inventor
Sei Takemori
Keiji Nagae
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP13460977A priority Critical patent/JPS5468116A/en
Publication of JPS5468116A publication Critical patent/JPS5468116A/en
Pending legal-status Critical Current

Links

Landscapes

  • Input From Keyboards Or The Like (AREA)
  • Digital Computer Display Output (AREA)
  • Position Input By Displaying (AREA)

Abstract

PURPOSE: To enable detection simply without converting the coordinates for the position of input on the liquid crystal display screen and without interfering the liquid crystal display.
CONSTITUTION: The letters of A to I are displayed on the liquid crystal display panel 6 in matrix shape, the transparent insulation plate 8 is placed in front of the panel, and three transparent column electrodes 9 and line electrodes 10 are placed in matrix shape on the plate 8. The electrodes are mutually insulated with transparent insulator, located on the display location of the letters and the input points are formed. At the external of the picture dispaly surface, one end of the column electrodes is connected to the voltage scanning circuit 12 and that of the line electrodes is connected to the scanning voltage detection circuit 13. Further, when a finger of conductor is directly in touch with the input points, the location of input points can be detected.
COPYRIGHT: (C)1979,JPO&Japio
JP13460977A 1977-11-11 1977-11-11 Input and output unit using liquid crystal display panel Pending JPS5468116A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13460977A JPS5468116A (en) 1977-11-11 1977-11-11 Input and output unit using liquid crystal display panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13460977A JPS5468116A (en) 1977-11-11 1977-11-11 Input and output unit using liquid crystal display panel

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP59139042A Division JPS60105032A (en) 1984-07-06 1984-07-06 Liquid crystal display panel

Publications (1)

Publication Number Publication Date
JPS5468116A true JPS5468116A (en) 1979-06-01

Family

ID=15132391

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13460977A Pending JPS5468116A (en) 1977-11-11 1977-11-11 Input and output unit using liquid crystal display panel

Country Status (1)

Country Link
JP (1) JPS5468116A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5920034A (en) * 1982-07-23 1984-02-01 Canon Inc Electronic apparatus
JPS60233726A (en) * 1984-05-07 1985-11-20 Canon Inc Input and output device
US5502463A (en) * 1992-07-07 1996-03-26 Japan Servo Co., Ltd. Message card

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5920034A (en) * 1982-07-23 1984-02-01 Canon Inc Electronic apparatus
JPS60233726A (en) * 1984-05-07 1985-11-20 Canon Inc Input and output device
US5502463A (en) * 1992-07-07 1996-03-26 Japan Servo Co., Ltd. Message card
US5652606A (en) * 1992-07-07 1997-07-29 Japan Servo Co., Ltd. Message card

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