JPS5548735A - Color displaying method - Google Patents

Color displaying method

Info

Publication number
JPS5548735A
JPS5548735A JP12156278A JP12156278A JPS5548735A JP S5548735 A JPS5548735 A JP S5548735A JP 12156278 A JP12156278 A JP 12156278A JP 12156278 A JP12156278 A JP 12156278A JP S5548735 A JPS5548735 A JP S5548735A
Authority
JP
Japan
Prior art keywords
liquid crystal
fluorecent
dichroism
coloring matter
display
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
JP12156278A
Other languages
Japanese (ja)
Inventor
Akio Kobi
Shuji Imazeki
Hidetoshi Abe
Fumio Nakano
Yasusada Morishita
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 JP12156278A priority Critical patent/JPS5548735A/en
Publication of JPS5548735A publication Critical patent/JPS5548735A/en
Pending legal-status Critical Current

Links

Landscapes

  • Liquid Crystal (AREA)
  • Liquid Crystal Substances (AREA)

Abstract

PURPOSE: To make it possible with a simple method to increase contrast with a liquid crystal color display device using a guest-host effect, by adding a fluorecent material having little optical anisotropy in addition to the liquid crystal containing a dichroism coloring matter.
CONSTITUTION: More than 0.1wt% of a fluorecent material having a relatively small optical anisotropy, such as thiazole derivarive shown by equation I, oxazole derivative shown by equation II (in these equations, R and R' are H, alkyl, allyl, aralkyl, alkoxy and phenyl), etc., is mixed to a positive dielectric anisotropic nematic liquid crystal, in which about 0.1wt% of a dichroism coloring matter is mixed. The liquid crystal is used for a display cell. The above mentioned fluorecent materials emit a fluorecent light having peculiar wave lengths, because they have no optical anisotropy, unlike conventional guest-host type liquid crystal color display, in which colorless display is made because the dichroism coloring matter becomes homeotropic orientation together with the liquid crystal due to an electric field impression and the dichroism matter does not absorb any light. Contrast in display using this device, therefore, can be improved by combining the dichroism coloring matter and the fluorecent material appropriately.
COPYRIGHT: (C)1980,JPO&Japio
JP12156278A 1978-10-04 1978-10-04 Color displaying method Pending JPS5548735A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12156278A JPS5548735A (en) 1978-10-04 1978-10-04 Color displaying method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12156278A JPS5548735A (en) 1978-10-04 1978-10-04 Color displaying method

Publications (1)

Publication Number Publication Date
JPS5548735A true JPS5548735A (en) 1980-04-08

Family

ID=14814299

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12156278A Pending JPS5548735A (en) 1978-10-04 1978-10-04 Color displaying method

Country Status (1)

Country Link
JP (1) JPS5548735A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6088323U (en) * 1983-11-19 1985-06-17 トヨタ自動車株式会社 liquid crystal display device
JPS6366542A (en) * 1986-06-23 1988-03-25 マンチェスター　アール　アンド　デイ　リミテッド　パートナーシップ Fluorescent colored capsuled liquid crystal apparatus using intensified scattering
JPH02188726A (en) * 1989-01-18 1990-07-24 Matsushita Electric Ind Co Ltd Guest-host type liquid crystal device
US7667804B2 (en) * 2005-06-29 2010-02-23 Lg Display Co., Ltd. In-plane switching mode liquid crystal display device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5046350A (en) * 1973-08-29 1975-04-25
JPS53133460A (en) * 1977-04-27 1978-11-21 Seiko Epson Corp Display device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5046350A (en) * 1973-08-29 1975-04-25
JPS53133460A (en) * 1977-04-27 1978-11-21 Seiko Epson Corp Display device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6088323U (en) * 1983-11-19 1985-06-17 トヨタ自動車株式会社 liquid crystal display device
JPS6366542A (en) * 1986-06-23 1988-03-25 マンチェスター　アール　アンド　デイ　リミテッド　パートナーシップ Fluorescent colored capsuled liquid crystal apparatus using intensified scattering
JPH02188726A (en) * 1989-01-18 1990-07-24 Matsushita Electric Ind Co Ltd Guest-host type liquid crystal device
US7667804B2 (en) * 2005-06-29 2010-02-23 Lg Display Co., Ltd. In-plane switching mode liquid crystal display device

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