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JPS5559434A - Driving method of photo writing liquid crystal light bulb element - Google Patents

Driving method of photo writing liquid crystal light bulb element

Info

Publication number
JPS5559434A
JPS5559434A JP13191578A JP13191578A JPS5559434A JP S5559434 A JPS5559434 A JP S5559434A JP 13191578 A JP13191578 A JP 13191578A JP 13191578 A JP13191578 A JP 13191578A JP S5559434 A JPS5559434 A JP S5559434A
Authority
JP
Japan
Prior art keywords
time
liquid crystals
light bulb
liquid crystal
crystal light
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.)
Granted
Application number
JP13191578A
Other languages
Japanese (ja)
Other versions
JPS6354164B2 (en
Inventor
Shohei Naemura
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP13191578A priority Critical patent/JPS5559434A/en
Publication of JPS5559434A publication Critical patent/JPS5559434A/en
Publication of JPS6354164B2 publication Critical patent/JPS6354164B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

PURPOSE: To make possible high-speed image writing by applying the specified voltage for s short time to the writing liquid crystal light bulb element at the starting of the driving means for said element.
CONSTITUTION: At the time of connecting a power source 8 to the photo writing liquid crystal light bulb 1 composed of glass substrates 2, 3, transparent electrodes 4, 5, of In2O3, CdS photoconductive layers 6, mixed cholesteric liquid crystals 7 to drive the same, the voltage above thr threshold voltage value at which the liquid crystals 7 cause phase transition is applied for a short time to the element 1 a fixed time before the time when the video information is first inputted at the time of turning the power source 8 again ON and inputting the new video information by an image pickup optical system 9 in order to rewrite the video information having been stored, whereby the liquid crystals 7 are shifted to a transparent nematic phase. This results in considerably reduced transition time of the liquid crystals 7 and reduced time necessary for rewriting of the video informatin.
COPYRIGHT: (C)1980,JPO&Japio
JP13191578A 1978-10-26 1978-10-26 Driving method of photo writing liquid crystal light bulb element Granted JPS5559434A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13191578A JPS5559434A (en) 1978-10-26 1978-10-26 Driving method of photo writing liquid crystal light bulb element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13191578A JPS5559434A (en) 1978-10-26 1978-10-26 Driving method of photo writing liquid crystal light bulb element

Publications (2)

Publication Number Publication Date
JPS5559434A true JPS5559434A (en) 1980-05-02
JPS6354164B2 JPS6354164B2 (en) 1988-10-27

Family

ID=15069153

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13191578A Granted JPS5559434A (en) 1978-10-26 1978-10-26 Driving method of photo writing liquid crystal light bulb element

Country Status (1)

Country Link
JP (1) JPS5559434A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04318514A (en) * 1991-01-31 1992-11-10 Hughes Aircraft Co Shaped voltage pulse method for operation of polymer-dispersed liquid crystal cells and light valves using same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04318514A (en) * 1991-01-31 1992-11-10 Hughes Aircraft Co Shaped voltage pulse method for operation of polymer-dispersed liquid crystal cells and light valves using same

Also Published As

Publication number Publication date
JPS6354164B2 (en) 1988-10-27

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