JPS6478283A - Lighting apparatus and display panel using the same - Google Patents

Lighting apparatus and display panel using the same

Info

Publication number
JPS6478283A
JPS6478283A JP62235993A JP23599387A JPS6478283A JP S6478283 A JPS6478283 A JP S6478283A JP 62235993 A JP62235993 A JP 62235993A JP 23599387 A JP23599387 A JP 23599387A JP S6478283 A JPS6478283 A JP S6478283A
Authority
JP
Japan
Prior art keywords
light
face
transmitter
transparent plate
plate
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
JP62235993A
Other languages
Japanese (ja)
Other versions
JP2622122B2 (en
Inventor
Hirobumi Iwamoto
Takashi Yamamoto
Yoshihiro Onitsuka
Tadashi Mihara
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP62235993A priority Critical patent/JP2622122B2/en
Priority to US07/244,299 priority patent/US5046826A/en
Priority to DE3853242T priority patent/DE3853242T2/en
Priority to EP88115242A priority patent/EP0308828B1/en
Publication of JPS6478283A publication Critical patent/JPS6478283A/en
Application granted granted Critical
Publication of JP2622122B2 publication Critical patent/JP2622122B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Illuminated Signs And Luminous Advertising (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)

Abstract

PURPOSE: To execute uniform face illumination having a high light flux application rate from. a light source by providing the illumi-nator with a light transmitter formed by plural transparent plate-like body, a light source, a light reflector arranged on the light projection side of the light transmitter so as to have an inclination angle from the transparent plate-like bodies and a plate-like body capable of converting reflected light into diffused light and brought into facially contact with the transmitter. CONSTITUTION: Incident light A from a long light source 101-1 such as a fluorescent lamp to the incident face of the light transmitter 102-1 goes forward in transparent plate-like bodies 108 while repeating total reflection in the inside without being leaked to the outside. After going out from a light projection face, the light A is reflected upward by a light reflector 103-3, reached to a diffusion plate 104-1 through a transparent or translucent body 104-2 and the light illuminates a liquid crystal panel 106 from its rear side as diffused light. Since a light scatter 104 is brought into contact with the face of the light transmitters 102-1, 102-2 and adhesively fixed, the light scatter 104 is not oscillated even at the time of receiving a drop impact and excess impact acceleration is not applied to the panel 106. Consequently face illumination with extremely uniform brightness can be attained.
JP62235993A 1987-09-19 1987-09-19 Illumination device and display panel using the same Expired - Fee Related JP2622122B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP62235993A JP2622122B2 (en) 1987-09-19 1987-09-19 Illumination device and display panel using the same
US07/244,299 US5046826A (en) 1987-09-19 1988-09-15 Illuminator and display panel employing the illuminator
DE3853242T DE3853242T2 (en) 1987-09-19 1988-09-16 Luminaire and display screen using this.
EP88115242A EP0308828B1 (en) 1987-09-19 1988-09-16 Illuminator and display panel employing it

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62235993A JP2622122B2 (en) 1987-09-19 1987-09-19 Illumination device and display panel using the same

Publications (2)

Publication Number Publication Date
JPS6478283A true JPS6478283A (en) 1989-03-23
JP2622122B2 JP2622122B2 (en) 1997-06-18

Family

ID=16994220

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62235993A Expired - Fee Related JP2622122B2 (en) 1987-09-19 1987-09-19 Illumination device and display panel using the same

Country Status (1)

Country Link
JP (1) JP2622122B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11176223A (en) * 1997-12-05 1999-07-02 Enplas Corp Sidelight type surface light source device and liquid crystal display device
JP2014063140A (en) * 2012-08-31 2014-04-10 Panasonic Corp Display device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6378983U (en) * 1986-11-10 1988-05-25
JPS63199279U (en) * 1987-06-04 1988-12-22

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6378983U (en) * 1986-11-10 1988-05-25
JPS63199279U (en) * 1987-06-04 1988-12-22

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11176223A (en) * 1997-12-05 1999-07-02 Enplas Corp Sidelight type surface light source device and liquid crystal display device
JP2014063140A (en) * 2012-08-31 2014-04-10 Panasonic Corp Display device

Also Published As

Publication number Publication date
JP2622122B2 (en) 1997-06-18

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees