JPS5522731A - Liquid crystal display element - Google Patents

Liquid crystal display element

Info

Publication number
JPS5522731A
JPS5522731A JP9526478A JP9526478A JPS5522731A JP S5522731 A JPS5522731 A JP S5522731A JP 9526478 A JP9526478 A JP 9526478A JP 9526478 A JP9526478 A JP 9526478A JP S5522731 A JPS5522731 A JP S5522731A
Authority
JP
Japan
Prior art keywords
liquid crystal
crystal layer
twisted
lost
passes
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
JP9526478A
Other languages
Japanese (ja)
Inventor
Mitsuo Nagata
Haruo Nakamura
Koichi Oguchi
Minoru Hosokawa
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 Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP9526478A priority Critical patent/JPS5522731A/en
Publication of JPS5522731A publication Critical patent/JPS5522731A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To optimize the contrast ratio of the liquid crystal display element consisting of the liquid crystal cell of twisted nematic structure, one sheet of polarizing plate and one sheet of reflecting plate by providing a multiplity of dot-form nonconductive portions to the display pattern of a transparent conductive film.
CONSTITUTION: A transparent conductive film 12 corresponding to the pattern 11 to be displayed is formed on the surface of a transparent substrate in contact with the liquid crystal layer and the circular non-conductive portions 13 are provided at a diameter 200μ or under and in the positions mutually opposing to the vertex of triangles in such a manner that the area ratios of the portions 13 to the pattern 11 become 30 to 70%, preferably 50%. Then, when an electric field is applied between the transparent electrodes and the liqiid crystal layer between the electrodes has lost the twisted structure, the quantity of the light which passes through the twisted liquid crystal layer at the incident time and passes the liquid crystal layer having lost the twisted structure after the reflection increases and the quantity of the light which passes through the liquid crystal layer having lost the twisted structure both at the incident time and after the refection decreases.
COPYRIGHT: (C)1980,JPO&Japio
JP9526478A 1978-08-04 1978-08-04 Liquid crystal display element Pending JPS5522731A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9526478A JPS5522731A (en) 1978-08-04 1978-08-04 Liquid crystal display element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9526478A JPS5522731A (en) 1978-08-04 1978-08-04 Liquid crystal display element

Publications (1)

Publication Number Publication Date
JPS5522731A true JPS5522731A (en) 1980-02-18

Family

ID=14132897

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9526478A Pending JPS5522731A (en) 1978-08-04 1978-08-04 Liquid crystal display element

Country Status (1)

Country Link
JP (1) JPS5522731A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0217717U (en) * 1988-07-18 1990-02-06
JP2013257522A (en) * 2012-06-14 2013-12-26 Ortus Technology Co Ltd Liquid crystal display device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4886547A (en) * 1972-02-18 1973-11-15
JPS5074446A (en) * 1973-10-30 1975-06-19

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4886547A (en) * 1972-02-18 1973-11-15
JPS5074446A (en) * 1973-10-30 1975-06-19

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0217717U (en) * 1988-07-18 1990-02-06
JP2013257522A (en) * 2012-06-14 2013-12-26 Ortus Technology Co Ltd Liquid crystal display device

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