JPS5492229A - Flashing display device - Google Patents

Flashing display device

Info

Publication number
JPS5492229A
JPS5492229A JP16034177A JP16034177A JPS5492229A JP S5492229 A JPS5492229 A JP S5492229A JP 16034177 A JP16034177 A JP 16034177A JP 16034177 A JP16034177 A JP 16034177A JP S5492229 A JPS5492229 A JP S5492229A
Authority
JP
Japan
Prior art keywords
light
liquid crystal
led
place
flashing
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
JP16034177A
Other languages
Japanese (ja)
Inventor
Isamu Uchida
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.)
Minolta Co Ltd
Original Assignee
Minolta 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 Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP16034177A priority Critical patent/JPS5492229A/en
Publication of JPS5492229A publication Critical patent/JPS5492229A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To enable flashing of light to be distinctly observed irrespective of the darkness and brightness of the place by using a display window which emits the light of a light emitting member toward the outside, an electrical control means periodically changing the transmittance of light and means of reflecting the external light having transmitted through the display window to the display window.
CONSTITUTION: At the same instant when a self timer actuates, a switch closes to let an LED 2 flash. Since pulseform voltage is also applied to liquid crystal 8, the liquid crystal actuates as well while the LED is emitting light and the combined body of the liquid crystal 8 and polarizing plates 16, 18 becomes transparent. While the LED 2 is off, the liquid crystal 8 does not actuate and cuts off the light. Because of this, red flashing of the LED 2 is visible in a dark place and the external light reflected by a filter 6 appears red or is cut off by the liquid crystal 8 becoming dark, in a bright place. Thereby, flashing of the light may be always distinctly observed irrespective of the brightness or darkness of the place.
COPYRIGHT: (C)1979,JPO&Japio
JP16034177A 1977-12-28 1977-12-28 Flashing display device Pending JPS5492229A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16034177A JPS5492229A (en) 1977-12-28 1977-12-28 Flashing display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16034177A JPS5492229A (en) 1977-12-28 1977-12-28 Flashing display device

Publications (1)

Publication Number Publication Date
JPS5492229A true JPS5492229A (en) 1979-07-21

Family

ID=15712879

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16034177A Pending JPS5492229A (en) 1977-12-28 1977-12-28 Flashing display device

Country Status (1)

Country Link
JP (1) JPS5492229A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58166379A (en) * 1982-03-29 1983-10-01 芝浦メカトロニクス株式会社 Lighting apparatus for liquid crystal display unit
JPH07302053A (en) * 1991-01-15 1995-11-14 Illinois Tool Works Inc <Itw> Display structure readable under sunlight

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58166379A (en) * 1982-03-29 1983-10-01 芝浦メカトロニクス株式会社 Lighting apparatus for liquid crystal display unit
JPH07302053A (en) * 1991-01-15 1995-11-14 Illinois Tool Works Inc <Itw> Display structure readable under sunlight

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