JPS5525234A - Picture display device - Google Patents

Picture display device

Info

Publication number
JPS5525234A
JPS5525234A JP9759078A JP9759078A JPS5525234A JP S5525234 A JPS5525234 A JP S5525234A JP 9759078 A JP9759078 A JP 9759078A JP 9759078 A JP9759078 A JP 9759078A JP S5525234 A JPS5525234 A JP S5525234A
Authority
JP
Japan
Prior art keywords
screen
projected
picture
cathode
ray tube
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
JP9759078A
Other languages
Japanese (ja)
Other versions
JPS622752B2 (en
Inventor
Yoshio Ishigaki
Norio Ito
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP9759078A priority Critical patent/JPS5525234A/en
Publication of JPS5525234A publication Critical patent/JPS5525234A/en
Publication of JPS622752B2 publication Critical patent/JPS622752B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Transforming Electric Information Into Light Information (AREA)

Abstract

PURPOSE: To obtain the picture which is longer laterally then the screen of the cathode-ray tube on the screen by securing projection of the over-scan part only in the horizontal direction in case the picture of the cathode-ray tube is magnified on the screen.
CONSTITUTION: In case the picture projected on the screen of cathode-ray tube 1 is projected on screen 4 after magnification through reflector plate 2 and lens 3, an adjustment is given to secure the coincidence between the size of screen 1a of tube 1 and the horizontal and vertical amplitude of the raster, thus turning the over- scan quantity to zero at tube 1. As a result, the area which is not projected on the normal screen can be projected. Then the electric or optical shielding is given to vertical part BL of screen 1a with 9% up and down each (18% in all). Accordingly, the vertical/horizontal ratio is increased up to 5:8 from normal 3:4 on the screen, thus obtaining an impressive and laterally long picture on the screen.
COPYRIGHT: (C)1980,JPO&Japio
JP9759078A 1978-08-10 1978-08-10 Picture display device Granted JPS5525234A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9759078A JPS5525234A (en) 1978-08-10 1978-08-10 Picture display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9759078A JPS5525234A (en) 1978-08-10 1978-08-10 Picture display device

Publications (2)

Publication Number Publication Date
JPS5525234A true JPS5525234A (en) 1980-02-22
JPS622752B2 JPS622752B2 (en) 1987-01-21

Family

ID=14196444

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9759078A Granted JPS5525234A (en) 1978-08-10 1978-08-10 Picture display device

Country Status (1)

Country Link
JP (1) JPS5525234A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6486682A (en) * 1987-09-28 1989-03-31 Sony Corp Video projector
JP2006060562A (en) * 2004-08-20 2006-03-02 Sony Corp Display apparatus

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5250021U (en) * 1975-10-06 1977-04-09

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5142040A (en) * 1974-10-09 1976-04-09 Mitsubishi Electric Corp YOSETSUBUSE IKEISOCHI

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5250021U (en) * 1975-10-06 1977-04-09

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6486682A (en) * 1987-09-28 1989-03-31 Sony Corp Video projector
JP2006060562A (en) * 2004-08-20 2006-03-02 Sony Corp Display apparatus

Also Published As

Publication number Publication date
JPS622752B2 (en) 1987-01-21

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